From d920f7c6628c63a390009c237fb80a203c2e400a Mon Sep 17 00:00:00 2001 From: Michal Marek Date: Tue, 3 Jan 2017 14:40:44 +0100 Subject: genksyms: Fix segfault with invalid declarations Do not try to recover too early and segfault when parsing invalid declarations such as echo 'int (int);' | scripts/genksyms/genksyms echo 'int a, (int);' | scripts/genksyms/genksyms echo 'extern void *__inline_memcpy((void *), (const void *), (__kernel_size_t));' | scripts/genksyms/genksyms The last one was a real-life bug with include/asm-generic/asm-prototypes.h on x86_64. Reported-and-tested-by: Borislav Petkov Signed-off-by: Michal Marek --- scripts/genksyms/parse.y | 2 -- 1 file changed, 2 deletions(-) (limited to 'scripts') diff --git a/scripts/genksyms/parse.y b/scripts/genksyms/parse.y index 4fba255e54ae..00a6d7e54971 100644 --- a/scripts/genksyms/parse.y +++ b/scripts/genksyms/parse.y @@ -322,8 +322,6 @@ direct_declarator: { $$ = $2; } | '(' declarator ')' { $$ = $3; } - | '(' error ')' - { $$ = $3; } ; /* Nested declarators differ from regular declarators in that they do -- cgit v1.2.3 From fde42bfcd232fb1a46d844dbf486cb67cb910004 Mon Sep 17 00:00:00 2001 From: Michal Marek Date: Tue, 3 Jan 2017 14:55:24 +0100 Subject: genksyms: Regenerate parser Regenerate the parser after d920f7c6628c ("genksyms: Fix segfault with invalid declarations"). Reported-and-tested-by: Borislav Petkov Signed-off-by: Michal Marek --- scripts/genksyms/parse.tab.c_shipped | 474 +++++++++++++++++------------------ 1 file changed, 234 insertions(+), 240 deletions(-) (limited to 'scripts') diff --git a/scripts/genksyms/parse.tab.c_shipped b/scripts/genksyms/parse.tab.c_shipped index 69148d30ca3f..d02258bafe7b 100644 --- a/scripts/genksyms/parse.tab.c_shipped +++ b/scripts/genksyms/parse.tab.c_shipped @@ -440,16 +440,16 @@ union yyalloc /* YYFINAL -- State number of the termination state. */ #define YYFINAL 4 /* YYLAST -- Last index in YYTABLE. */ -#define YYLAST 524 +#define YYLAST 522 /* YYNTOKENS -- Number of terminals. */ #define YYNTOKENS 55 /* YYNNTS -- Number of nonterminals. */ #define YYNNTS 49 /* YYNRULES -- Number of rules. */ -#define YYNRULES 134 +#define YYNRULES 133 /* YYNRULES -- Number of states. */ -#define YYNSTATES 189 +#define YYNSTATES 187 /* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ #define YYUNDEFTOK 2 @@ -506,13 +506,13 @@ static const yytype_uint16 yyprhs[] = 97, 101, 105, 109, 112, 115, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 145, 146, 148, 150, 153, 155, 157, 159, 161, 164, 166, - 168, 170, 175, 180, 183, 187, 191, 194, 196, 198, - 200, 205, 210, 213, 217, 221, 224, 226, 230, 231, - 233, 235, 239, 242, 245, 247, 248, 250, 252, 257, - 262, 265, 269, 273, 277, 278, 280, 283, 287, 291, - 292, 294, 296, 299, 303, 306, 307, 309, 311, 315, - 318, 321, 323, 326, 327, 330, 334, 339, 341, 345, - 347, 351, 354, 355, 357 + 168, 170, 175, 180, 183, 187, 190, 192, 194, 196, + 201, 206, 209, 213, 217, 220, 222, 226, 227, 229, + 231, 235, 238, 241, 243, 244, 246, 248, 253, 258, + 261, 265, 269, 273, 274, 276, 279, 283, 287, 288, + 290, 292, 295, 299, 302, 303, 305, 307, 311, 314, + 317, 319, 322, 323, 326, 330, 335, 337, 341, 343, + 347, 350, 351, 353 }; /* YYRHS -- A `-1'-separated list of the rules' RHS. */ @@ -536,25 +536,24 @@ static const yytype_int8 yyrhs[] = 74, 75, -1, 8, -1, 27, -1, 32, -1, 18, -1, 72, 76, -1, 77, -1, 39, -1, 43, -1, 77, 49, 80, 50, -1, 77, 49, 1, 50, -1, - 77, 35, -1, 49, 76, 50, -1, 49, 1, 50, - -1, 72, 78, -1, 79, -1, 39, -1, 43, -1, - 79, 49, 80, 50, -1, 79, 49, 1, 50, -1, - 79, 35, -1, 49, 78, 50, -1, 49, 1, 50, - -1, 81, 38, -1, 81, -1, 82, 48, 38, -1, - -1, 82, -1, 83, -1, 82, 48, 83, -1, 67, - 84, -1, 72, 84, -1, 85, -1, -1, 39, -1, - 43, -1, 85, 49, 80, 50, -1, 85, 49, 1, - 50, -1, 85, 35, -1, 49, 84, 50, -1, 49, - 1, 50, -1, 66, 76, 34, -1, -1, 88, -1, - 52, 36, -1, 53, 90, 47, -1, 53, 1, 47, - -1, -1, 91, -1, 92, -1, 91, 92, -1, 66, - 93, 46, -1, 1, 46, -1, -1, 94, -1, 95, - -1, 94, 48, 95, -1, 78, 97, -1, 39, 96, - -1, 96, -1, 54, 36, -1, -1, 97, 32, -1, - 53, 99, 47, -1, 53, 99, 48, 47, -1, 100, - -1, 99, 48, 100, -1, 39, -1, 39, 52, 36, - -1, 31, 46, -1, -1, 31, -1, 30, 49, 39, - 50, 46, -1 + 77, 35, -1, 49, 76, 50, -1, 72, 78, -1, + 79, -1, 39, -1, 43, -1, 79, 49, 80, 50, + -1, 79, 49, 1, 50, -1, 79, 35, -1, 49, + 78, 50, -1, 49, 1, 50, -1, 81, 38, -1, + 81, -1, 82, 48, 38, -1, -1, 82, -1, 83, + -1, 82, 48, 83, -1, 67, 84, -1, 72, 84, + -1, 85, -1, -1, 39, -1, 43, -1, 85, 49, + 80, 50, -1, 85, 49, 1, 50, -1, 85, 35, + -1, 49, 84, 50, -1, 49, 1, 50, -1, 66, + 76, 34, -1, -1, 88, -1, 52, 36, -1, 53, + 90, 47, -1, 53, 1, 47, -1, -1, 91, -1, + 92, -1, 91, 92, -1, 66, 93, 46, -1, 1, + 46, -1, -1, 94, -1, 95, -1, 94, 48, 95, + -1, 78, 97, -1, 39, 96, -1, 96, -1, 54, + 36, -1, -1, 97, 32, -1, 53, 99, 47, -1, + 53, 99, 48, 47, -1, 100, -1, 99, 48, 100, + -1, 39, -1, 39, 52, 36, -1, 31, 46, -1, + -1, 31, -1, 30, 49, 39, 50, 46, -1 }; /* YYRLINE[YYN] -- source line where rule number YYN was defined. */ @@ -567,13 +566,13 @@ static const yytype_uint16 yyrline[] = 238, 240, 242, 247, 250, 251, 255, 256, 257, 258, 259, 260, 261, 262, 263, 264, 265, 266, 270, 275, 276, 280, 281, 285, 285, 285, 286, 294, 295, 299, - 308, 317, 319, 321, 323, 325, 332, 333, 337, 338, - 339, 341, 343, 345, 347, 352, 353, 354, 358, 359, - 363, 364, 369, 374, 376, 380, 381, 389, 393, 395, - 397, 399, 401, 406, 415, 416, 421, 426, 427, 431, - 432, 436, 437, 441, 443, 448, 449, 453, 454, 458, - 459, 460, 464, 468, 469, 473, 474, 478, 479, 482, - 487, 495, 499, 500, 504 + 308, 317, 319, 321, 323, 330, 331, 335, 336, 337, + 339, 341, 343, 345, 350, 351, 352, 356, 357, 361, + 362, 367, 372, 374, 378, 379, 387, 391, 393, 395, + 397, 399, 404, 413, 414, 419, 424, 425, 429, 430, + 434, 435, 439, 441, 446, 447, 451, 452, 456, 457, + 458, 462, 466, 467, 471, 472, 476, 477, 480, 485, + 493, 497, 498, 502 }; #endif @@ -636,13 +635,13 @@ static const yytype_uint8 yyr1[] = 70, 70, 70, 70, 70, 70, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 72, 73, 73, 74, 74, 75, 75, 75, 75, 76, 76, 77, - 77, 77, 77, 77, 77, 77, 78, 78, 79, 79, - 79, 79, 79, 79, 79, 80, 80, 80, 81, 81, - 82, 82, 83, 84, 84, 85, 85, 85, 85, 85, - 85, 85, 85, 86, 87, 87, 88, 89, 89, 90, - 90, 91, 91, 92, 92, 93, 93, 94, 94, 95, - 95, 95, 96, 97, 97, 98, 98, 99, 99, 100, - 100, 101, 102, 102, 103 + 77, 77, 77, 77, 77, 78, 78, 79, 79, 79, + 79, 79, 79, 79, 80, 80, 80, 81, 81, 82, + 82, 83, 84, 84, 85, 85, 85, 85, 85, 85, + 85, 85, 86, 87, 87, 88, 89, 89, 90, 90, + 91, 91, 92, 92, 93, 93, 94, 94, 95, 95, + 95, 96, 97, 97, 98, 98, 99, 99, 100, 100, + 101, 102, 102, 103 }; /* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ @@ -655,13 +654,13 @@ static const yytype_uint8 yyr2[] = 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 0, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, - 1, 4, 4, 2, 3, 3, 2, 1, 1, 1, - 4, 4, 2, 3, 3, 2, 1, 3, 0, 1, - 1, 3, 2, 2, 1, 0, 1, 1, 4, 4, - 2, 3, 3, 3, 0, 1, 2, 3, 3, 0, - 1, 1, 2, 3, 2, 0, 1, 1, 3, 2, - 2, 1, 2, 0, 2, 3, 4, 1, 3, 1, - 3, 2, 0, 1, 5 + 1, 4, 4, 2, 3, 2, 1, 1, 1, 4, + 4, 2, 3, 3, 2, 1, 3, 0, 1, 1, + 3, 2, 2, 1, 0, 1, 1, 4, 4, 2, + 3, 3, 3, 0, 1, 2, 3, 3, 0, 1, + 1, 2, 3, 2, 0, 1, 1, 3, 2, 2, + 1, 2, 0, 2, 3, 4, 1, 3, 1, 3, + 2, 0, 1, 5 }; /* YYDEFACT[STATE-NAME] -- Default reduction number in state STATE-NUM. @@ -675,189 +674,189 @@ static const yytype_uint8 yydefact[] = 0, 56, 0, 0, 65, 36, 57, 5, 10, 17, 23, 24, 26, 27, 33, 34, 11, 12, 13, 14, 15, 39, 0, 43, 6, 37, 0, 44, 22, 38, - 45, 0, 0, 131, 69, 70, 0, 59, 0, 18, - 19, 0, 132, 68, 25, 42, 129, 0, 127, 22, - 40, 0, 115, 0, 0, 111, 9, 17, 41, 95, - 0, 0, 0, 0, 58, 60, 61, 16, 0, 67, - 133, 103, 123, 73, 0, 0, 125, 0, 7, 114, - 108, 78, 79, 0, 0, 0, 123, 77, 0, 116, - 117, 121, 107, 0, 112, 132, 96, 57, 0, 95, - 92, 94, 35, 0, 75, 74, 62, 20, 104, 0, - 0, 86, 89, 90, 130, 126, 128, 120, 0, 78, - 0, 122, 76, 119, 82, 0, 113, 0, 0, 97, - 0, 93, 100, 0, 134, 124, 0, 21, 105, 72, - 71, 85, 0, 84, 83, 0, 0, 118, 102, 101, - 0, 0, 106, 87, 91, 81, 80, 99, 98 + 45, 0, 0, 130, 69, 70, 0, 59, 0, 18, + 19, 0, 131, 68, 25, 42, 128, 0, 126, 22, + 40, 0, 114, 0, 0, 110, 9, 17, 41, 94, + 0, 0, 0, 58, 60, 61, 16, 0, 67, 132, + 102, 122, 73, 0, 0, 124, 0, 7, 113, 107, + 77, 78, 0, 0, 0, 122, 76, 0, 115, 116, + 120, 106, 0, 111, 131, 95, 57, 0, 94, 91, + 93, 35, 0, 74, 62, 20, 103, 0, 0, 85, + 88, 89, 129, 125, 127, 119, 0, 77, 0, 121, + 75, 118, 81, 0, 112, 0, 0, 96, 0, 92, + 99, 0, 133, 123, 0, 21, 104, 72, 71, 84, + 0, 83, 82, 0, 0, 117, 101, 100, 0, 0, + 105, 86, 90, 80, 79, 98, 97 }; /* YYDEFGOTO[NTERM-NUM]. */ static const yytype_int16 yydefgoto[] = { -1, 1, 2, 3, 37, 79, 58, 38, 68, 69, - 70, 82, 40, 41, 42, 43, 44, 71, 94, 95, - 45, 125, 73, 116, 117, 140, 141, 142, 143, 130, - 131, 46, 167, 168, 57, 83, 84, 85, 118, 119, - 120, 121, 138, 53, 77, 78, 47, 102, 48 + 70, 82, 40, 41, 42, 43, 44, 71, 93, 94, + 45, 124, 73, 115, 116, 138, 139, 140, 141, 129, + 130, 46, 165, 166, 57, 83, 84, 85, 117, 118, + 119, 120, 136, 53, 77, 78, 47, 101, 48 }; /* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing STATE-NUM. */ -#define YYPACT_NINF -111 +#define YYPACT_NINF -94 static const yytype_int16 yypact[] = { - -111, 13, -111, 210, -111, -111, 28, -111, -111, -111, - -111, -111, -27, -111, 44, -111, -111, -111, -111, -111, - -111, -111, -111, -111, -24, -111, -20, -111, -111, -111, - 31, -111, 32, 42, -111, -111, -111, -111, -111, 34, - 481, -111, -111, -111, -111, -111, -111, -111, -111, -111, - -111, 51, 56, -111, -111, 52, 108, -111, 481, 52, - -111, 481, 58, -111, -111, -111, 19, 0, 54, 55, - -111, 34, 30, -18, -111, -111, 68, -25, -111, 481, - -111, 45, 33, 59, 159, -111, -111, 34, -111, 395, - 57, 60, 81, 88, -111, 0, -111, -111, 34, -111, - -111, -111, -111, -111, 257, 72, -111, -23, -111, -111, - -111, 85, -111, 20, 106, 47, -111, -10, 97, 96, - -111, -111, -111, 99, -111, 115, -111, -111, 5, 50, - -111, 11, -111, 102, -111, -111, -111, -111, -22, 100, - 103, 111, 104, -111, -111, -111, -111, -111, 113, -111, - 121, -111, -111, 124, -111, 303, -111, 33, 132, -111, - 139, -111, -111, 349, -111, -111, 122, -111, -111, -111, - -111, -111, 442, -111, -111, 140, 143, -111, -111, -111, - 144, 145, -111, -111, -111, -111, -111, -111, -111 + -94, 15, -94, 208, -94, -94, 34, -94, -94, -94, + -94, -94, -27, -94, -5, -94, -94, -94, -94, -94, + -94, -94, -94, -94, -25, -94, -16, -94, -94, -94, + -4, -94, 19, -24, -94, -94, -94, -94, -94, 24, + 479, -94, -94, -94, -94, -94, -94, -94, -94, -94, + -94, 29, 48, -94, -94, 37, 106, -94, 479, 37, + -94, 479, 54, -94, -94, -94, 24, -2, 49, 53, + -94, 24, -14, -11, -94, -94, 47, 38, -94, 479, + -94, 51, 23, 55, 157, -94, -94, 24, -94, 393, + 56, 58, 68, -94, -2, -94, -94, 24, -94, -94, + -94, -94, -94, 255, 67, -94, 5, -94, -94, -94, + 50, -94, 7, 69, 40, -94, -8, 83, 88, -94, + -94, -94, 91, -94, 109, -94, -94, 4, 45, -94, + 16, -94, 95, -94, -94, -94, -23, 92, 93, 108, + 96, -94, -94, -94, -94, -94, 97, -94, 98, -94, + -94, 118, -94, 301, -94, 23, 101, -94, 104, -94, + -94, 347, -94, -94, 120, -94, -94, -94, -94, -94, + 440, -94, -94, 111, 119, -94, -94, -94, 130, 137, + -94, -94, -94, -94, -94, -94, -94 }; /* YYPGOTO[NTERM-NUM]. */ static const yytype_int16 yypgoto[] = { - -111, -111, 160, -111, -111, -111, -111, -51, -111, -111, - 98, -1, -61, -37, -111, -111, -111, -78, -111, -111, - -53, -30, -111, -66, -111, -110, -111, -111, -60, -63, - -111, -111, -111, -111, -21, -111, -111, 116, -111, -111, - 40, 90, 83, 152, -111, 105, -111, -111, -111 + -94, -94, 158, -94, -94, -94, -94, -45, -94, -94, + 94, -1, -61, -29, -94, -94, -94, -79, -94, -94, + -63, -7, -94, -93, -94, -92, -94, -94, -60, -57, + -94, -94, -94, -94, -19, -94, -94, 110, -94, -94, + 33, 82, 78, 144, -94, 99, -94, -94, -94 }; /* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If positive, shift that token. If negative, reduce the rule which number is the opposite. If YYTABLE_NINF, syntax error. */ -#define YYTABLE_NINF -111 +#define YYTABLE_NINF -110 static const yytype_int16 yytable[] = { - 89, 90, 39, 74, 115, 60, 158, 86, 10, 72, - 165, 129, 51, 4, 96, 55, 76, 103, 20, 59, - 92, 148, 106, 107, 145, 154, 52, 29, 108, 56, - 166, 104, 34, 56, 80, 115, 93, 115, 88, 155, - -95, 99, 136, 89, 126, 176, 162, 150, 159, 152, - 129, 129, 74, 181, 128, -95, 67, 87, 64, 149, - 163, 100, 65, 112, 101, 160, 161, 54, 66, 113, - 67, 67, 111, 64, 49, 50, 112, 65, 87, 115, - 61, 62, 113, 66, 67, 67, 149, 114, 63, 126, - 112, 109, 110, 159, 89, 76, 113, 91, 67, 128, - 97, 67, 89, 98, 52, 56, 122, 132, 144, 81, - 133, 89, 184, 7, 8, 9, 10, 11, 12, 13, - 105, 15, 16, 17, 18, 19, 20, 21, 22, 23, - 24, 134, 26, 27, 28, 29, 30, 31, 135, 114, - 34, 35, 151, 156, 157, 109, 100, -22, 164, 171, - 169, 36, 172, 170, -22, -109, 165, -22, 182, -22, - 123, 5, -22, 173, 7, 8, 9, 10, 11, 12, - 13, 174, 15, 16, 17, 18, 19, 20, 21, 22, - 23, 24, 178, 26, 27, 28, 29, 30, 31, 179, - 185, 34, 35, 186, 187, 188, 137, 177, -22, 153, - 124, 147, 36, 75, 0, -22, -110, 0, -22, 0, - -22, 6, 146, -22, 0, 7, 8, 9, 10, 11, - 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, - 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, - 32, 33, 34, 35, 0, 0, 0, 0, 0, -22, - 0, 0, 0, 36, 0, 0, -22, 0, 139, -22, - 0, -22, 7, 8, 9, 10, 11, 12, 13, 0, + 89, 90, 39, 114, 95, 156, 10, 60, 146, 163, + 128, 74, 51, 86, 55, 4, 20, 99, 54, 148, + 100, 150, 63, 59, 102, 29, 52, 152, 56, 164, + 34, 134, 72, 114, 107, 114, 80, 56, 103, -94, + 88, 153, 89, 125, 76, 61, 147, 157, 128, 128, + 111, 160, 143, 127, -94, 67, 112, 87, 67, 92, + 74, 174, 110, 64, 98, 161, 111, 65, 62, 179, + 158, 159, 112, 66, 67, 67, 114, 113, 87, 147, + 49, 50, 52, 111, 125, 105, 106, 76, 157, 112, + 56, 67, 89, 91, 127, 96, 67, 108, 109, 104, + 89, 97, 121, 142, 113, 149, 131, 81, 132, 89, + 182, 7, 8, 9, 10, 11, 12, 13, 133, 15, + 16, 17, 18, 19, 20, 21, 22, 23, 24, 154, + 26, 27, 28, 29, 30, 31, 155, 108, 34, 35, + 99, 162, 167, 168, 170, -22, 169, 171, 172, 36, + 163, 176, -22, -108, 177, -22, 180, -22, 122, 5, + -22, 183, 7, 8, 9, 10, 11, 12, 13, 184, + 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, + 185, 26, 27, 28, 29, 30, 31, 186, 175, 34, + 35, 135, 145, 151, 123, 75, -22, 0, 0, 0, + 36, 0, 0, -22, -109, 144, -22, 0, -22, 6, + 0, -22, 0, 7, 8, 9, 10, 11, 12, 13, + 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, + 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, + 34, 35, 0, 0, 0, 0, 0, -22, 0, 0, + 0, 36, 0, 0, -22, 0, 137, -22, 0, -22, + 7, 8, 9, 10, 11, 12, 13, 0, 15, 16, + 17, 18, 19, 20, 21, 22, 23, 24, 0, 26, + 27, 28, 29, 30, 31, 0, 0, 34, 35, 0, + 0, 0, 0, -87, 0, 0, 0, 0, 36, 0, + 0, 0, 173, 0, 0, -87, 7, 8, 9, 10, + 11, 12, 13, 0, 15, 16, 17, 18, 19, 20, + 21, 22, 23, 24, 0, 26, 27, 28, 29, 30, + 31, 0, 0, 34, 35, 0, 0, 0, 0, -87, + 0, 0, 0, 0, 36, 0, 0, 0, 178, 0, + 0, -87, 7, 8, 9, 10, 11, 12, 13, 0, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 0, 26, 27, 28, 29, 30, 31, 0, 0, 34, - 35, 0, 0, 0, 0, -88, 0, 0, 0, 0, - 36, 0, 0, 0, 175, 0, 0, -88, 7, 8, + 35, 0, 0, 0, 0, -87, 0, 0, 0, 0, + 36, 0, 0, 0, 0, 0, 0, -87, 7, 8, 9, 10, 11, 12, 13, 0, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 0, 26, 27, 28, 29, 30, 31, 0, 0, 34, 35, 0, 0, 0, - 0, -88, 0, 0, 0, 0, 36, 0, 0, 0, - 180, 0, 0, -88, 7, 8, 9, 10, 11, 12, + 0, 0, 125, 0, 0, 0, 126, 0, 0, 0, + 0, 0, 127, 0, 67, 7, 8, 9, 10, 11, + 12, 13, 0, 15, 16, 17, 18, 19, 20, 21, + 22, 23, 24, 0, 26, 27, 28, 29, 30, 31, + 0, 0, 34, 35, 0, 0, 0, 0, 181, 0, + 0, 0, 0, 36, 7, 8, 9, 10, 11, 12, 13, 0, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 0, 26, 27, 28, 29, 30, 31, 0, - 0, 34, 35, 0, 0, 0, 0, -88, 0, 0, - 0, 0, 36, 0, 0, 0, 0, 0, 0, -88, - 7, 8, 9, 10, 11, 12, 13, 0, 15, 16, - 17, 18, 19, 20, 21, 22, 23, 24, 0, 26, - 27, 28, 29, 30, 31, 0, 0, 34, 35, 0, - 0, 0, 0, 0, 126, 0, 0, 0, 127, 0, - 0, 0, 0, 0, 128, 0, 67, 7, 8, 9, - 10, 11, 12, 13, 0, 15, 16, 17, 18, 19, - 20, 21, 22, 23, 24, 0, 26, 27, 28, 29, - 30, 31, 0, 0, 34, 35, 0, 0, 0, 0, - 183, 0, 0, 0, 0, 36, 7, 8, 9, 10, - 11, 12, 13, 0, 15, 16, 17, 18, 19, 20, - 21, 22, 23, 24, 0, 26, 27, 28, 29, 30, - 31, 0, 0, 34, 35, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 36 + 0, 34, 35, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 36 }; #define yypact_value_is_default(Yystate) \ - (!!((Yystate) == (-111))) + (!!((Yystate) == (-94))) #define yytable_value_is_error(Yytable_value) \ YYID (0) static const yytype_int16 yycheck[] = { - 61, 61, 3, 40, 82, 26, 1, 58, 8, 39, - 32, 89, 39, 0, 67, 39, 39, 35, 18, 39, - 1, 1, 47, 48, 47, 35, 53, 27, 79, 53, - 52, 49, 32, 53, 55, 113, 66, 115, 59, 49, - 35, 71, 95, 104, 39, 155, 35, 113, 43, 115, - 128, 129, 89, 163, 49, 50, 51, 58, 39, 39, - 49, 31, 43, 43, 34, 128, 129, 23, 49, 49, - 51, 51, 39, 39, 46, 47, 43, 43, 79, 157, - 49, 49, 49, 49, 51, 51, 39, 54, 46, 39, - 43, 46, 47, 43, 155, 39, 49, 39, 51, 49, - 46, 51, 163, 48, 53, 53, 47, 50, 36, 1, - 50, 172, 172, 5, 6, 7, 8, 9, 10, 11, - 52, 13, 14, 15, 16, 17, 18, 19, 20, 21, - 22, 50, 24, 25, 26, 27, 28, 29, 50, 54, - 32, 33, 36, 46, 48, 46, 31, 39, 46, 38, - 50, 43, 48, 50, 46, 47, 32, 49, 36, 51, - 1, 1, 54, 50, 5, 6, 7, 8, 9, 10, - 11, 50, 13, 14, 15, 16, 17, 18, 19, 20, - 21, 22, 50, 24, 25, 26, 27, 28, 29, 50, - 50, 32, 33, 50, 50, 50, 98, 157, 39, 116, - 84, 111, 43, 51, -1, 46, 47, -1, 49, -1, - 51, 1, 107, 54, -1, 5, 6, 7, 8, 9, - 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, - 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, - 30, 31, 32, 33, -1, -1, -1, -1, -1, 39, - -1, -1, -1, 43, -1, -1, 46, -1, 1, 49, - -1, 51, 5, 6, 7, 8, 9, 10, 11, -1, + 61, 61, 3, 82, 67, 1, 8, 26, 1, 32, + 89, 40, 39, 58, 39, 0, 18, 31, 23, 112, + 34, 114, 46, 39, 35, 27, 53, 35, 53, 52, + 32, 94, 39, 112, 79, 114, 55, 53, 49, 35, + 59, 49, 103, 39, 39, 49, 39, 43, 127, 128, + 43, 35, 47, 49, 50, 51, 49, 58, 51, 66, + 89, 153, 39, 39, 71, 49, 43, 43, 49, 161, + 127, 128, 49, 49, 51, 51, 155, 54, 79, 39, + 46, 47, 53, 43, 39, 47, 48, 39, 43, 49, + 53, 51, 153, 39, 49, 46, 51, 46, 47, 52, + 161, 48, 47, 36, 54, 36, 50, 1, 50, 170, + 170, 5, 6, 7, 8, 9, 10, 11, 50, 13, + 14, 15, 16, 17, 18, 19, 20, 21, 22, 46, + 24, 25, 26, 27, 28, 29, 48, 46, 32, 33, + 31, 46, 50, 50, 48, 39, 38, 50, 50, 43, + 32, 50, 46, 47, 50, 49, 36, 51, 1, 1, + 54, 50, 5, 6, 7, 8, 9, 10, 11, 50, + 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, + 50, 24, 25, 26, 27, 28, 29, 50, 155, 32, + 33, 97, 110, 115, 84, 51, 39, -1, -1, -1, + 43, -1, -1, 46, 47, 106, 49, -1, 51, 1, + -1, 54, -1, 5, 6, 7, 8, 9, 10, 11, + 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, + 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, + 32, 33, -1, -1, -1, -1, -1, 39, -1, -1, + -1, 43, -1, -1, 46, -1, 1, 49, -1, 51, + 5, 6, 7, 8, 9, 10, 11, -1, 13, 14, + 15, 16, 17, 18, 19, 20, 21, 22, -1, 24, + 25, 26, 27, 28, 29, -1, -1, 32, 33, -1, + -1, -1, -1, 38, -1, -1, -1, -1, 43, -1, + -1, -1, 1, -1, -1, 50, 5, 6, 7, 8, + 9, 10, 11, -1, 13, 14, 15, 16, 17, 18, + 19, 20, 21, 22, -1, 24, 25, 26, 27, 28, + 29, -1, -1, 32, 33, -1, -1, -1, -1, 38, + -1, -1, -1, -1, 43, -1, -1, -1, 1, -1, + -1, 50, 5, 6, 7, 8, 9, 10, 11, -1, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, -1, 24, 25, 26, 27, 28, 29, -1, -1, 32, 33, -1, -1, -1, -1, 38, -1, -1, -1, -1, - 43, -1, -1, -1, 1, -1, -1, 50, 5, 6, + 43, -1, -1, -1, -1, -1, -1, 50, 5, 6, 7, 8, 9, 10, 11, -1, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, -1, 24, 25, 26, 27, 28, 29, -1, -1, 32, 33, -1, -1, -1, - -1, 38, -1, -1, -1, -1, 43, -1, -1, -1, - 1, -1, -1, 50, 5, 6, 7, 8, 9, 10, + -1, -1, 39, -1, -1, -1, 43, -1, -1, -1, + -1, -1, 49, -1, 51, 5, 6, 7, 8, 9, + 10, 11, -1, 13, 14, 15, 16, 17, 18, 19, + 20, 21, 22, -1, 24, 25, 26, 27, 28, 29, + -1, -1, 32, 33, -1, -1, -1, -1, 38, -1, + -1, -1, -1, 43, 5, 6, 7, 8, 9, 10, 11, -1, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, -1, 24, 25, 26, 27, 28, 29, -1, - -1, 32, 33, -1, -1, -1, -1, 38, -1, -1, - -1, -1, 43, -1, -1, -1, -1, -1, -1, 50, - 5, 6, 7, 8, 9, 10, 11, -1, 13, 14, - 15, 16, 17, 18, 19, 20, 21, 22, -1, 24, - 25, 26, 27, 28, 29, -1, -1, 32, 33, -1, - -1, -1, -1, -1, 39, -1, -1, -1, 43, -1, - -1, -1, -1, -1, 49, -1, 51, 5, 6, 7, - 8, 9, 10, 11, -1, 13, 14, 15, 16, 17, - 18, 19, 20, 21, 22, -1, 24, 25, 26, 27, - 28, 29, -1, -1, 32, 33, -1, -1, -1, -1, - 38, -1, -1, -1, -1, 43, 5, 6, 7, 8, - 9, 10, 11, -1, 13, 14, 15, 16, 17, 18, - 19, 20, 21, 22, -1, 24, 25, 26, 27, 28, - 29, -1, -1, 32, 33, -1, -1, -1, -1, -1, - -1, -1, -1, -1, 43 + -1, 32, 33, -1, -1, -1, -1, -1, -1, -1, + -1, -1, 43 }; /* YYSTOS[STATE-NUM] -- The (internal number of the) accessing @@ -873,16 +872,16 @@ static const yytype_uint8 yystos[] = 89, 49, 49, 46, 39, 43, 49, 51, 63, 64, 65, 72, 76, 77, 68, 98, 39, 99, 100, 60, 89, 1, 66, 90, 91, 92, 62, 66, 89, 67, - 83, 39, 1, 76, 73, 74, 75, 46, 48, 76, - 31, 34, 102, 35, 49, 52, 47, 48, 62, 46, - 47, 39, 43, 49, 54, 72, 78, 79, 93, 94, - 95, 96, 47, 1, 92, 76, 39, 43, 49, 72, - 84, 85, 50, 50, 50, 50, 75, 65, 97, 1, - 80, 81, 82, 83, 36, 47, 100, 96, 1, 39, - 78, 36, 78, 97, 35, 49, 46, 48, 1, 43, - 84, 84, 35, 49, 46, 32, 52, 87, 88, 50, - 50, 38, 48, 50, 50, 1, 80, 95, 50, 50, - 1, 80, 36, 38, 83, 50, 50, 50, 50 + 83, 39, 76, 73, 74, 75, 46, 48, 76, 31, + 34, 102, 35, 49, 52, 47, 48, 62, 46, 47, + 39, 43, 49, 54, 72, 78, 79, 93, 94, 95, + 96, 47, 1, 92, 76, 39, 43, 49, 72, 84, + 85, 50, 50, 50, 75, 65, 97, 1, 80, 81, + 82, 83, 36, 47, 100, 96, 1, 39, 78, 36, + 78, 97, 35, 49, 46, 48, 1, 43, 84, 84, + 35, 49, 46, 32, 52, 87, 88, 50, 50, 38, + 48, 50, 50, 1, 80, 95, 50, 50, 1, 80, + 36, 38, 83, 50, 50, 50, 50 }; #define yyerrok (yyerrstatus = 0) @@ -1928,12 +1927,12 @@ yyreduce: case 75: - { (yyval) = (yyvsp[(3) - (3)]); } + { (yyval) = (yyvsp[(2) - (2)]); } break; - case 76: + case 79: - { (yyval) = (yyvsp[(2) - (2)]); } + { (yyval) = (yyvsp[(4) - (4)]); } break; case 80: @@ -1943,12 +1942,12 @@ yyreduce: case 81: - { (yyval) = (yyvsp[(4) - (4)]); } + { (yyval) = (yyvsp[(2) - (2)]); } break; case 82: - { (yyval) = (yyvsp[(2) - (2)]); } + { (yyval) = (yyvsp[(3) - (3)]); } break; case 83: @@ -1958,45 +1957,40 @@ yyreduce: case 84: - { (yyval) = (yyvsp[(3) - (3)]); } - break; - - case 85: - { (yyval) = (yyvsp[(2) - (2)]); } break; - case 87: + case 86: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 88: + case 87: { (yyval) = NULL; } break; - case 91: + case 90: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 92: + case 91: { (yyval) = (yyvsp[(2) - (2)]) ? (yyvsp[(2) - (2)]) : (yyvsp[(1) - (2)]); } break; - case 93: + case 92: { (yyval) = (yyvsp[(2) - (2)]) ? (yyvsp[(2) - (2)]) : (yyvsp[(1) - (2)]); } break; - case 95: + case 94: { (yyval) = NULL; } break; - case 96: + case 95: { /* For version 2 checksums, we don't want to remember private parameter names. */ @@ -2005,39 +1999,39 @@ yyreduce: } break; - case 97: + case 96: { remove_node((yyvsp[(1) - (1)])); (yyval) = (yyvsp[(1) - (1)]); } break; - case 98: + case 97: { (yyval) = (yyvsp[(4) - (4)]); } break; - case 99: + case 98: { (yyval) = (yyvsp[(4) - (4)]); } break; - case 100: + case 99: { (yyval) = (yyvsp[(2) - (2)]); } break; - case 101: + case 100: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 102: + case 101: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 103: + case 102: { struct string_list *decl = *(yyvsp[(2) - (3)]); *(yyvsp[(2) - (3)]) = NULL; @@ -2046,87 +2040,87 @@ yyreduce: } break; - case 104: + case 103: { (yyval) = NULL; } break; - case 106: + case 105: { remove_list((yyvsp[(2) - (2)]), &(*(yyvsp[(1) - (2)]))->next); (yyval) = (yyvsp[(2) - (2)]); } break; - case 107: + case 106: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 108: + case 107: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 109: + case 108: { (yyval) = NULL; } break; - case 112: + case 111: { (yyval) = (yyvsp[(2) - (2)]); } break; - case 113: + case 112: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 114: + case 113: { (yyval) = (yyvsp[(2) - (2)]); } break; - case 115: + case 114: { (yyval) = NULL; } break; - case 118: + case 117: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 119: + case 118: { (yyval) = (yyvsp[(2) - (2)]) ? (yyvsp[(2) - (2)]) : (yyvsp[(1) - (2)]); } break; - case 120: + case 119: { (yyval) = (yyvsp[(2) - (2)]); } break; - case 122: + case 121: { (yyval) = (yyvsp[(2) - (2)]); } break; - case 123: + case 122: { (yyval) = NULL; } break; - case 125: + case 124: { (yyval) = (yyvsp[(3) - (3)]); } break; - case 126: + case 125: { (yyval) = (yyvsp[(4) - (4)]); } break; - case 129: + case 128: { const char *name = strdup((*(yyvsp[(1) - (1)]))->string); @@ -2134,7 +2128,7 @@ yyreduce: } break; - case 130: + case 129: { const char *name = strdup((*(yyvsp[(1) - (3)]))->string); @@ -2143,17 +2137,17 @@ yyreduce: } break; - case 131: + case 130: { (yyval) = (yyvsp[(2) - (2)]); } break; - case 132: + case 131: { (yyval) = NULL; } break; - case 134: + case 133: { export_symbol((*(yyvsp[(3) - (5)]))->string); (yyval) = (yyvsp[(5) - (5)]); } break; -- cgit v1.2.3 From 020a218f95bd3ceff7dd1022ff7ebc0497bc7bf9 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 28 Feb 2017 15:46:38 +0100 Subject: drm: Introduce drm_mode_object_{get,put}() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For consistency with other reference counting APIs in the kernel, add drm_mode_object_get() and drm_mode_object_put() to reference count DRM mode objects. Compatibility aliases are added to keep existing code working. To help speed up the transition, all the instances of the old functions in the DRM core are already replaced in this commit. A semantic patch is provided that can be used to convert all drivers to the new helpers. Reviewed-by: Sean Paul Acked-by: Christian König Signed-off-by: Thierry Reding Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-3-thierry.reding@gmail.com --- drivers/gpu/drm/drm_atomic.c | 14 +++++------ drivers/gpu/drm/drm_mode_object.c | 26 ++++++++++---------- drivers/gpu/drm/drm_property.c | 6 ++--- include/drm/drm_mode_object.h | 36 ++++++++++++++++++++++----- scripts/coccinelle/api/drm-get-put.cocci | 42 ++++++++++++++++++++++++++++++++ 5 files changed, 95 insertions(+), 29 deletions(-) create mode 100644 scripts/coccinelle/api/drm-get-put.cocci (limited to 'scripts') diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 08d03d4594ee..39e470eb8aea 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -2238,13 +2238,13 @@ retry: } if (!obj->properties) { - drm_mode_object_unreference(obj); + drm_mode_object_put(obj); ret = -ENOENT; goto out; } if (get_user(count_props, count_props_ptr + copied_objs)) { - drm_mode_object_unreference(obj); + drm_mode_object_put(obj); ret = -EFAULT; goto out; } @@ -2257,14 +2257,14 @@ retry: struct drm_property *prop; if (get_user(prop_id, props_ptr + copied_props)) { - drm_mode_object_unreference(obj); + drm_mode_object_put(obj); ret = -EFAULT; goto out; } prop = drm_mode_obj_find_prop_id(obj, prop_id); if (!prop) { - drm_mode_object_unreference(obj); + drm_mode_object_put(obj); ret = -ENOENT; goto out; } @@ -2272,14 +2272,14 @@ retry: if (copy_from_user(&prop_value, prop_values_ptr + copied_props, sizeof(prop_value))) { - drm_mode_object_unreference(obj); + drm_mode_object_put(obj); ret = -EFAULT; goto out; } ret = atomic_set_prop(state, obj, prop, prop_value); if (ret) { - drm_mode_object_unreference(obj); + drm_mode_object_put(obj); goto out; } @@ -2292,7 +2292,7 @@ retry: plane_mask |= (1 << drm_plane_index(plane)); plane->old_fb = plane->fb; } - drm_mode_object_unreference(obj); + drm_mode_object_put(obj); } ret = prepare_crtc_signaling(dev, state, arg, file_priv, &fence_state, diff --git a/drivers/gpu/drm/drm_mode_object.c b/drivers/gpu/drm/drm_mode_object.c index 2ab8ccf2ca98..2eb0792dfaf3 100644 --- a/drivers/gpu/drm/drm_mode_object.c +++ b/drivers/gpu/drm/drm_mode_object.c @@ -133,7 +133,7 @@ struct drm_mode_object *__drm_mode_object_find(struct drm_device *dev, * * This function is used to look up a modeset object. It will acquire a * reference for reference counted objects. This reference must be dropped again - * by callind drm_mode_object_unreference(). + * by callind drm_mode_object_put(). */ struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type) @@ -146,38 +146,38 @@ struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, EXPORT_SYMBOL(drm_mode_object_find); /** - * drm_mode_object_unreference - decr the object refcnt - * @obj: mode_object + * drm_mode_object_put - release a mode object reference + * @obj: DRM mode object * * This function decrements the object's refcount if it is a refcounted modeset * object. It is a no-op on any other object. This is used to drop references - * acquired with drm_mode_object_reference(). + * acquired with drm_mode_object_get(). */ -void drm_mode_object_unreference(struct drm_mode_object *obj) +void drm_mode_object_put(struct drm_mode_object *obj) { if (obj->free_cb) { DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount)); kref_put(&obj->refcount, obj->free_cb); } } -EXPORT_SYMBOL(drm_mode_object_unreference); +EXPORT_SYMBOL(drm_mode_object_put); /** - * drm_mode_object_reference - incr the object refcnt - * @obj: mode_object + * drm_mode_object_get - acquire a mode object reference + * @obj: DRM mode object * * This function increments the object's refcount if it is a refcounted modeset * object. It is a no-op on any other object. References should be dropped again - * by calling drm_mode_object_unreference(). + * by calling drm_mode_object_put(). */ -void drm_mode_object_reference(struct drm_mode_object *obj) +void drm_mode_object_get(struct drm_mode_object *obj) { if (obj->free_cb) { DRM_DEBUG("OBJ ID: %d (%d)\n", obj->id, atomic_read(&obj->refcount.refcount)); kref_get(&obj->refcount); } } -EXPORT_SYMBOL(drm_mode_object_reference); +EXPORT_SYMBOL(drm_mode_object_get); /** * drm_object_attach_property - attach a property to a modeset object @@ -363,7 +363,7 @@ int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, &arg->count_props); out_unref: - drm_mode_object_unreference(obj); + drm_mode_object_put(obj); out: drm_modeset_unlock_all(dev); return ret; @@ -428,7 +428,7 @@ int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, drm_property_change_valid_put(property, ref); out_unref: - drm_mode_object_unreference(arg_obj); + drm_mode_object_put(arg_obj); out: drm_modeset_unlock_all(dev); return ret; diff --git a/drivers/gpu/drm/drm_property.c b/drivers/gpu/drm/drm_property.c index 411e470369c0..15af0d42e8be 100644 --- a/drivers/gpu/drm/drm_property.c +++ b/drivers/gpu/drm/drm_property.c @@ -597,7 +597,7 @@ void drm_property_unreference_blob(struct drm_property_blob *blob) if (!blob) return; - drm_mode_object_unreference(&blob->base); + drm_mode_object_put(&blob->base); } EXPORT_SYMBOL(drm_property_unreference_blob); @@ -625,7 +625,7 @@ void drm_property_destroy_user_blobs(struct drm_device *dev, */ struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) { - drm_mode_object_reference(&blob->base); + drm_mode_object_get(&blob->base); return blob; } EXPORT_SYMBOL(drm_property_reference_blob); @@ -906,7 +906,7 @@ void drm_property_change_valid_put(struct drm_property *property, return; if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { - drm_mode_object_unreference(ref); + drm_mode_object_put(ref); } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) drm_property_unreference_blob(obj_to_blob(ref)); } diff --git a/include/drm/drm_mode_object.h b/include/drm/drm_mode_object.h index 2c017adf6d74..a767b4a30a6d 100644 --- a/include/drm/drm_mode_object.h +++ b/include/drm/drm_mode_object.h @@ -45,10 +45,10 @@ struct drm_device; * drm_object_attach_property() before the object is visible to userspace. * * - For objects with dynamic lifetimes (as indicated by a non-NULL @free_cb) it - * provides reference counting through drm_mode_object_reference() and - * drm_mode_object_unreference(). This is used by &drm_framebuffer, - * &drm_connector and &drm_property_blob. These objects provide specialized - * reference counting wrappers. + * provides reference counting through drm_mode_object_get() and + * drm_mode_object_put(). This is used by &drm_framebuffer, &drm_connector + * and &drm_property_blob. These objects provide specialized reference + * counting wrappers. */ struct drm_mode_object { uint32_t id; @@ -114,8 +114,32 @@ struct drm_object_properties { struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type); -void drm_mode_object_reference(struct drm_mode_object *obj); -void drm_mode_object_unreference(struct drm_mode_object *obj); +void drm_mode_object_get(struct drm_mode_object *obj); +void drm_mode_object_put(struct drm_mode_object *obj); + +/** + * drm_mode_object_reference - acquire a mode object reference + * @obj: DRM mode object + * + * This is a compatibility alias for drm_mode_object_get() and should not be + * used by new code. + */ +static inline void drm_mode_object_reference(struct drm_mode_object *obj) +{ + drm_mode_object_get(obj); +} + +/** + * drm_mode_object_unreference - release a mode object reference + * @obj: DRM mode object + * + * This is a compatibility alias for drm_mode_object_put() and should not be + * used by new code. + */ +static inline void drm_mode_object_unreference(struct drm_mode_object *obj) +{ + drm_mode_object_put(obj); +} int drm_object_property_set_value(struct drm_mode_object *obj, struct drm_property *property, diff --git a/scripts/coccinelle/api/drm-get-put.cocci b/scripts/coccinelle/api/drm-get-put.cocci new file mode 100644 index 000000000000..a3742447c981 --- /dev/null +++ b/scripts/coccinelle/api/drm-get-put.cocci @@ -0,0 +1,42 @@ +/// +/// Use drm_*_get() and drm_*_put() helpers instead of drm_*_reference() and +/// drm_*_unreference() helpers. +/// +// Confidence: High +// Copyright: (C) 2017 NVIDIA Corporation +// Options: --no-includes --include-headers +// + +virtual patch +virtual report + +@depends on patch@ +expression object; +@@ + +( +- drm_mode_object_reference(object) ++ drm_mode_object_get(object) +| +- drm_mode_object_unreference(object) ++ drm_mode_object_put(object) +) + +@r depends on report@ +expression object; +position p; +@@ + +( +drm_mode_object_unreference@p(object) +| +drm_mode_object_reference@p(object) +) + +@script:python depends on report@ +object << r.object; +p << r.p; +@@ + +msg="WARNING: use get/put helpers to reference and dereference %s" % (object) +coccilib.report.print_report(p[0], msg) -- cgit v1.2.3 From ad09360750afa18a0a0ce0253d6ea6033abc22e7 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 28 Feb 2017 15:46:39 +0100 Subject: drm: Introduce drm_connector_{get,put}() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For consistency with other reference counting APIs in the kernel, add drm_connector_get() and drm_connector_put() functions to reference count connectors. Compatibility aliases are added to keep existing code working. To help speed up the transition, all the instances of the old functions in the DRM core are already replaced in this commit. The existing semantic patch for mode object reference count conversion is extended for these new helpers. Reviewed-by: Sean Paul Acked-by: Christian König Signed-off-by: Thierry Reding Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-4-thierry.reding@gmail.com --- drivers/gpu/drm/drm_atomic.c | 8 +++---- drivers/gpu/drm/drm_atomic_helper.c | 4 ++-- drivers/gpu/drm/drm_connector.c | 10 ++++---- drivers/gpu/drm/drm_crtc.c | 2 +- drivers/gpu/drm/drm_crtc_helper.c | 6 ++--- drivers/gpu/drm/drm_fb_helper.c | 12 +++++----- drivers/gpu/drm/drm_mode_config.c | 2 +- include/drm/drm_connector.h | 41 +++++++++++++++++++++++++------- scripts/coccinelle/api/drm-get-put.cocci | 10 ++++++++ 9 files changed, 65 insertions(+), 30 deletions(-) (limited to 'scripts') diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 39e470eb8aea..c5cb56db99f6 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -150,7 +150,7 @@ void drm_atomic_state_default_clear(struct drm_atomic_state *state) state->connectors[i].state); state->connectors[i].ptr = NULL; state->connectors[i].state = NULL; - drm_connector_unreference(connector); + drm_connector_put(connector); } for (i = 0; i < config->num_crtc; i++) { @@ -1030,7 +1030,7 @@ drm_atomic_get_connector_state(struct drm_atomic_state *state, if (!connector_state) return ERR_PTR(-ENOMEM); - drm_connector_reference(connector); + drm_connector_get(connector); state->connectors[index].state = connector_state; state->connectors[index].old_state = connector->state; state->connectors[index].new_state = connector_state; @@ -1380,7 +1380,7 @@ drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state, crtc_state->connector_mask &= ~(1 << drm_connector_index(conn_state->connector)); - drm_connector_unreference(conn_state->connector); + drm_connector_put(conn_state->connector); conn_state->crtc = NULL; } @@ -1392,7 +1392,7 @@ drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state, crtc_state->connector_mask |= 1 << drm_connector_index(conn_state->connector); - drm_connector_reference(conn_state->connector); + drm_connector_get(conn_state->connector); conn_state->crtc = crtc; DRM_DEBUG_ATOMIC("Link connector state %p to [CRTC:%d:%s]\n", diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index bdfddfa87316..6e7d9dfce342 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -3351,7 +3351,7 @@ __drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector, { memcpy(state, connector->state, sizeof(*state)); if (state->crtc) - drm_connector_reference(connector); + drm_connector_get(connector); } EXPORT_SYMBOL(__drm_atomic_helper_connector_duplicate_state); @@ -3477,7 +3477,7 @@ void __drm_atomic_helper_connector_destroy_state(struct drm_connector_state *state) { if (state->crtc) - drm_connector_unreference(state->connector); + drm_connector_put(state->connector); } EXPORT_SYMBOL(__drm_atomic_helper_connector_destroy_state); diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index a48e9a65046d..5a4be752a85e 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -35,8 +35,8 @@ * als fixed panels or anything else that can display pixels in some form. As * opposed to all other KMS objects representing hardware (like CRTC, encoder or * plane abstractions) connectors can be hotplugged and unplugged at runtime. - * Hence they are reference-counted using drm_connector_reference() and - * drm_connector_unreference(). + * Hence they are reference-counted using drm_connector_get() and + * drm_connector_put(). * * KMS driver must create, initialize, register and attach at a &struct * drm_connector for each such sink. The instance is created as other KMS @@ -557,7 +557,7 @@ drm_connector_list_iter_next(struct drm_connector_list_iter *iter) spin_unlock_irqrestore(&config->connector_list_lock, flags); if (old_conn) - drm_connector_unreference(old_conn); + drm_connector_put(old_conn); return iter->conn; } @@ -576,7 +576,7 @@ void drm_connector_list_iter_put(struct drm_connector_list_iter *iter) { iter->dev = NULL; if (iter->conn) - drm_connector_unreference(iter->conn); + drm_connector_put(iter->conn); lock_release(&connector_list_iter_dep_map, 0, _RET_IP_); } EXPORT_SYMBOL(drm_connector_list_iter_put); @@ -1309,7 +1309,7 @@ int drm_mode_getconnector(struct drm_device *dev, void *data, out: mutex_unlock(&dev->mode_config.mutex); out_unref: - drm_connector_unreference(connector); + drm_connector_put(connector); return ret; } diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index e2284539f82c..9594c623799b 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -685,7 +685,7 @@ out: if (connector_set) { for (i = 0; i < crtc_req->count_connectors; i++) { if (connector_set[i]) - drm_connector_unreference(connector_set[i]); + drm_connector_put(connector_set[i]); } } kfree(connector_set); diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 44ba0e990d6c..536051c627d8 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -465,7 +465,7 @@ drm_crtc_helper_disable(struct drm_crtc *crtc) connector->dpms = DRM_MODE_DPMS_OFF; /* we keep a reference while the encoder is bound */ - drm_connector_unreference(connector); + drm_connector_put(connector); } drm_connector_list_iter_put(&conn_iter); } @@ -623,7 +623,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) for (ro = 0; ro < set->num_connectors; ro++) { if (set->connectors[ro]->encoder) continue; - drm_connector_reference(set->connectors[ro]); + drm_connector_get(set->connectors[ro]); } /* a) traverse passed in connector list and get encoders for them */ @@ -772,7 +772,7 @@ fail: for (ro = 0; ro < set->num_connectors; ro++) { if (set->connectors[ro]->encoder) continue; - drm_connector_unreference(set->connectors[ro]); + drm_connector_put(set->connectors[ro]); } /* Try to restore the config */ diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index 1b068e6264d5..b243fdbdbb08 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -148,7 +148,7 @@ fail: struct drm_fb_helper_connector *fb_helper_connector = fb_helper->connector_info[i]; - drm_connector_unreference(fb_helper_connector->connector); + drm_connector_put(fb_helper_connector->connector); kfree(fb_helper_connector); fb_helper->connector_info[i] = NULL; @@ -185,7 +185,7 @@ int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper, struct drm_ if (!fb_helper_connector) return -ENOMEM; - drm_connector_reference(connector); + drm_connector_get(connector); fb_helper_connector->connector = connector; fb_helper->connector_info[fb_helper->connector_count++] = fb_helper_connector; return 0; @@ -211,7 +211,7 @@ int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper, if (i == fb_helper->connector_count) return -EINVAL; fb_helper_connector = fb_helper->connector_info[i]; - drm_connector_unreference(fb_helper_connector->connector); + drm_connector_put(fb_helper_connector->connector); for (j = i + 1; j < fb_helper->connector_count; j++) { fb_helper->connector_info[j - 1] = fb_helper->connector_info[j]; @@ -633,7 +633,7 @@ static void drm_fb_helper_modeset_release(struct drm_fb_helper *helper, int i; for (i = 0; i < modeset->num_connectors; i++) { - drm_connector_unreference(modeset->connectors[i]); + drm_connector_put(modeset->connectors[i]); modeset->connectors[i] = NULL; } modeset->num_connectors = 0; @@ -650,7 +650,7 @@ static void drm_fb_helper_crtc_free(struct drm_fb_helper *helper) int i; for (i = 0; i < helper->connector_count; i++) { - drm_connector_unreference(helper->connector_info[i]->connector); + drm_connector_put(helper->connector_info[i]->connector); kfree(helper->connector_info[i]); } kfree(helper->connector_info); @@ -2192,7 +2192,7 @@ static void drm_setup_crtcs(struct drm_fb_helper *fb_helper, fb_crtc->y = offset->y; modeset->mode = drm_mode_duplicate(dev, fb_crtc->desired_mode); - drm_connector_reference(connector); + drm_connector_get(connector); modeset->connectors[modeset->num_connectors++] = connector; modeset->fb = fb_helper->fb; modeset->x = offset->x; diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c index 884cc4d26fb5..20aec165abd7 100644 --- a/drivers/gpu/drm/drm_mode_config.c +++ b/drivers/gpu/drm/drm_mode_config.c @@ -418,7 +418,7 @@ void drm_mode_config_cleanup(struct drm_device *dev) * current connector itself, which means it is inherently safe * against unreferencing the current connector - but not against * deleting it right away. */ - drm_connector_unreference(connector); + drm_connector_put(connector); } drm_connector_list_iter_put(&conn_iter); if (WARN_ON(!list_empty(&dev->mode_config.connector_list))) { diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index f08aa5dfc9d7..e0acdb674d85 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -812,25 +812,50 @@ static inline struct drm_connector *drm_connector_lookup(struct drm_device *dev, } /** - * drm_connector_reference - incr the connector refcnt - * @connector: connector + * drm_connector_get - acquire a connector reference + * @connector: DRM connector * * This function increments the connector's refcount. */ +static inline void drm_connector_get(struct drm_connector *connector) +{ + drm_mode_object_get(&connector->base); +} + +/** + * drm_connector_put - release a connector reference + * @connector: DRM connector + * + * This function decrements the connector's reference count and frees the + * object if the reference count drops to zero. + */ +static inline void drm_connector_put(struct drm_connector *connector) +{ + drm_mode_object_put(&connector->base); +} + +/** + * drm_connector_reference - acquire a connector reference + * @connector: DRM connector + * + * This is a compatibility alias for drm_connector_get() and should not be + * used by new code. + */ static inline void drm_connector_reference(struct drm_connector *connector) { - drm_mode_object_reference(&connector->base); + drm_connector_get(connector); } /** - * drm_connector_unreference - unref a connector - * @connector: connector to unref + * drm_connector_unreference - release a connector reference + * @connector: DRM connector * - * This function decrements the connector's refcount and frees it if it drops to zero. + * This is a compatibility alias for drm_connector_put() and should not be + * used by new code. */ static inline void drm_connector_unreference(struct drm_connector *connector) { - drm_mode_object_unreference(&connector->base); + drm_connector_put(connector); } const char *drm_get_connector_status_name(enum drm_connector_status status); @@ -924,7 +949,7 @@ void drm_connector_list_iter_put(struct drm_connector_list_iter *iter); * * Note that @connector is only valid within the list body, if you want to use * @connector after calling drm_connector_list_iter_put() then you need to grab - * your own reference first using drm_connector_reference(). + * your own reference first using drm_connector_get(). */ #define drm_for_each_connector_iter(connector, iter) \ while ((connector = drm_connector_list_iter_next(iter))) diff --git a/scripts/coccinelle/api/drm-get-put.cocci b/scripts/coccinelle/api/drm-get-put.cocci index a3742447c981..8a4c2cb7889e 100644 --- a/scripts/coccinelle/api/drm-get-put.cocci +++ b/scripts/coccinelle/api/drm-get-put.cocci @@ -20,6 +20,12 @@ expression object; | - drm_mode_object_unreference(object) + drm_mode_object_put(object) +| +- drm_connector_reference(object) ++ drm_connector_get(object) +| +- drm_connector_unreference(object) ++ drm_connector_put(object) ) @r depends on report@ @@ -31,6 +37,10 @@ position p; drm_mode_object_unreference@p(object) | drm_mode_object_reference@p(object) +| +drm_connector_unreference@p(object) +| +drm_connector_reference@p(object) ) @script:python depends on report@ -- cgit v1.2.3 From a4a69da06bc11a937a6e417938b1bb698ee1fa46 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 28 Feb 2017 15:46:40 +0100 Subject: drm: Introduce drm_framebuffer_{get,put}() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For consistency with other reference counting APIs in the kernel, add drm_framebuffer_get() and drm_framebuffer_put() to reference count DRM framebuffers. Compatibility aliases are added to keep existing code working. To help speed up the transition, all the instances of the old functions in the DRM core are already replaced in this commit. The existing semantic patch for the DRM subsystem-wide conversion is extended to account for these new helpers. Reviewed-by: Sean Paul Acked-by: Christian König Signed-off-by: Thierry Reding Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-5-thierry.reding@gmail.com --- drivers/gpu/drm/drm_atomic.c | 6 ++-- drivers/gpu/drm/drm_atomic_helper.c | 4 +-- drivers/gpu/drm/drm_crtc.c | 8 +++--- drivers/gpu/drm/drm_framebuffer.c | 34 +++++++++++----------- drivers/gpu/drm/drm_plane.c | 12 ++++---- include/drm/drm_framebuffer.h | 49 ++++++++++++++++++++++++-------- scripts/coccinelle/api/drm-get-put.cocci | 10 +++++++ 7 files changed, 79 insertions(+), 44 deletions(-) (limited to 'scripts') diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index c5cb56db99f6..38cf374e7552 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -737,7 +737,7 @@ int drm_atomic_plane_set_property(struct drm_plane *plane, struct drm_framebuffer *fb = drm_framebuffer_lookup(dev, val); drm_atomic_set_fb_for_plane(state, fb); if (fb) - drm_framebuffer_unreference(fb); + drm_framebuffer_put(fb); } else if (property == config->prop_in_fence_fd) { if (state->fence) return -EINVAL; @@ -1865,12 +1865,12 @@ void drm_atomic_clean_old_fb(struct drm_device *dev, if (ret == 0) { struct drm_framebuffer *new_fb = plane->state->fb; if (new_fb) - drm_framebuffer_reference(new_fb); + drm_framebuffer_get(new_fb); plane->fb = new_fb; plane->crtc = plane->state->crtc; if (plane->old_fb) - drm_framebuffer_unreference(plane->old_fb); + drm_framebuffer_put(plane->old_fb); } plane->old_fb = NULL; } diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 6e7d9dfce342..01b2dddbd431 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -3230,7 +3230,7 @@ void __drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane, memcpy(state, plane->state, sizeof(*state)); if (state->fb) - drm_framebuffer_reference(state->fb); + drm_framebuffer_get(state->fb); state->fence = NULL; } @@ -3270,7 +3270,7 @@ EXPORT_SYMBOL(drm_atomic_helper_plane_duplicate_state); void __drm_atomic_helper_plane_destroy_state(struct drm_plane_state *state) { if (state->fb) - drm_framebuffer_unreference(state->fb); + drm_framebuffer_put(state->fb); if (state->fence) dma_fence_put(state->fence); diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 9594c623799b..e2974d3c92e7 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -471,9 +471,9 @@ int drm_mode_set_config_internal(struct drm_mode_set *set) drm_for_each_crtc(tmp, crtc->dev) { if (tmp->primary->fb) - drm_framebuffer_reference(tmp->primary->fb); + drm_framebuffer_get(tmp->primary->fb); if (tmp->primary->old_fb) - drm_framebuffer_unreference(tmp->primary->old_fb); + drm_framebuffer_put(tmp->primary->old_fb); tmp->primary->old_fb = NULL; } @@ -567,7 +567,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, } fb = crtc->primary->fb; /* Make refcounting symmetric with the lookup path. */ - drm_framebuffer_reference(fb); + drm_framebuffer_get(fb); } else { fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); if (!fb) { @@ -680,7 +680,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, out: if (fb) - drm_framebuffer_unreference(fb); + drm_framebuffer_put(fb); if (connector_set) { for (i = 0; i < crtc_req->count_connectors; i++) { diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c index dfc433450b81..e4909aef75d7 100644 --- a/drivers/gpu/drm/drm_framebuffer.c +++ b/drivers/gpu/drm/drm_framebuffer.c @@ -52,13 +52,13 @@ * metadata fields. * * The lifetime of a drm framebuffer is controlled with a reference count, - * drivers can grab additional references with drm_framebuffer_reference() and - * drop them again with drm_framebuffer_unreference(). For driver-private - * framebuffers for which the last reference is never dropped (e.g. for the - * fbdev framebuffer when the struct &struct drm_framebuffer is embedded into - * the fbdev helper struct) drivers can manually clean up a framebuffer at - * module unload time with drm_framebuffer_unregister_private(). But doing this - * is not recommended, and it's better to have a normal free-standing &struct + * drivers can grab additional references with drm_framebuffer_get() and drop + * them again with drm_framebuffer_put(). For driver-private framebuffers for + * which the last reference is never dropped (e.g. for the fbdev framebuffer + * when the struct &struct drm_framebuffer is embedded into the fbdev helper + * struct) drivers can manually clean up a framebuffer at module unload time + * with drm_framebuffer_unregister_private(). But doing this is not + * recommended, and it's better to have a normal free-standing &struct * drm_framebuffer. */ @@ -374,7 +374,7 @@ int drm_mode_rmfb(struct drm_device *dev, mutex_unlock(&file_priv->fbs_lock); /* drop the reference we picked up in framebuffer lookup */ - drm_framebuffer_unreference(fb); + drm_framebuffer_put(fb); /* * we now own the reference that was stored in the fbs list @@ -394,12 +394,12 @@ int drm_mode_rmfb(struct drm_device *dev, flush_work(&arg.work); destroy_work_on_stack(&arg.work); } else - drm_framebuffer_unreference(fb); + drm_framebuffer_put(fb); return 0; fail_unref: - drm_framebuffer_unreference(fb); + drm_framebuffer_put(fb); return -ENOENT; } @@ -453,7 +453,7 @@ int drm_mode_getfb(struct drm_device *dev, ret = -ENODEV; } - drm_framebuffer_unreference(fb); + drm_framebuffer_put(fb); return ret; } @@ -540,7 +540,7 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev, out_err2: kfree(clips); out_err1: - drm_framebuffer_unreference(fb); + drm_framebuffer_put(fb); return ret; } @@ -580,7 +580,7 @@ void drm_fb_release(struct drm_file *priv) list_del_init(&fb->filp_head); /* This drops the fpriv->fbs reference. */ - drm_framebuffer_unreference(fb); + drm_framebuffer_put(fb); } } @@ -661,7 +661,7 @@ EXPORT_SYMBOL(drm_framebuffer_init); * * If successful, this grabs an additional reference to the framebuffer - * callers need to make sure to eventually unreference the returned framebuffer - * again, using @drm_framebuffer_unreference. + * again, using drm_framebuffer_put(). */ struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, uint32_t id) @@ -687,8 +687,8 @@ EXPORT_SYMBOL(drm_framebuffer_lookup); * * NOTE: This function is deprecated. For driver-private framebuffers it is not * recommended to embed a framebuffer struct info fbdev struct, instead, a - * framebuffer pointer is preferred and drm_framebuffer_unreference() should be - * called when the framebuffer is to be cleaned up. + * framebuffer pointer is preferred and drm_framebuffer_put() should be called + * when the framebuffer is to be cleaned up. */ void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) { @@ -797,7 +797,7 @@ void drm_framebuffer_remove(struct drm_framebuffer *fb) } out: - drm_framebuffer_unreference(fb); + drm_framebuffer_put(fb); } EXPORT_SYMBOL(drm_framebuffer_remove); diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index f42590049a3a..a22e76837065 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -293,7 +293,7 @@ void drm_plane_force_disable(struct drm_plane *plane) return; } /* disconnect the plane from the fb and crtc: */ - drm_framebuffer_unreference(plane->old_fb); + drm_framebuffer_put(plane->old_fb); plane->old_fb = NULL; plane->fb = NULL; plane->crtc = NULL; @@ -520,9 +520,9 @@ static int __setplane_internal(struct drm_plane *plane, out: if (fb) - drm_framebuffer_unreference(fb); + drm_framebuffer_put(fb); if (plane->old_fb) - drm_framebuffer_unreference(plane->old_fb); + drm_framebuffer_put(plane->old_fb); plane->old_fb = NULL; return ret; @@ -638,7 +638,7 @@ static int drm_mode_cursor_universal(struct drm_crtc *crtc, } else { fb = crtc->cursor->fb; if (fb) - drm_framebuffer_reference(fb); + drm_framebuffer_get(fb); } if (req->flags & DRM_MODE_CURSOR_MOVE) { @@ -902,9 +902,9 @@ out: if (ret && crtc->funcs->page_flip_target) drm_crtc_vblank_put(crtc); if (fb) - drm_framebuffer_unreference(fb); + drm_framebuffer_put(fb); if (crtc->primary->old_fb) - drm_framebuffer_unreference(crtc->primary->old_fb); + drm_framebuffer_put(crtc->primary->old_fb); crtc->primary->old_fb = NULL; drm_modeset_unlock_crtc(crtc); diff --git a/include/drm/drm_framebuffer.h b/include/drm/drm_framebuffer.h index 04c77eee9c20..45410ba0d4f7 100644 --- a/include/drm/drm_framebuffer.h +++ b/include/drm/drm_framebuffer.h @@ -101,8 +101,8 @@ struct drm_framebuffer_funcs { * cleanup (like releasing the reference(s) on the backing GEM bo(s)) * should be deferred. In cases like this, the driver would like to * hold a ref to the fb even though it has already been removed from - * userspace perspective. See drm_framebuffer_reference() and - * drm_framebuffer_unreference(). + * userspace perspective. See drm_framebuffer_get() and + * drm_framebuffer_put(). * * The refcount is stored inside the mode object @base. */ @@ -204,25 +204,50 @@ void drm_framebuffer_cleanup(struct drm_framebuffer *fb); void drm_framebuffer_unregister_private(struct drm_framebuffer *fb); /** - * drm_framebuffer_reference - incr the fb refcnt - * @fb: framebuffer + * drm_framebuffer_get - acquire a framebuffer reference + * @fb: DRM framebuffer + * + * This function increments the framebuffer's reference count. + */ +static inline void drm_framebuffer_get(struct drm_framebuffer *fb) +{ + drm_mode_object_get(&fb->base); +} + +/** + * drm_framebuffer_put - release a framebuffer reference + * @fb: DRM framebuffer + * + * This function decrements the framebuffer's reference count and frees the + * framebuffer if the reference count drops to zero. + */ +static inline void drm_framebuffer_put(struct drm_framebuffer *fb) +{ + drm_mode_object_put(&fb->base); +} + +/** + * drm_framebuffer_reference - acquire a framebuffer reference + * @fb: DRM framebuffer * - * This functions increments the fb's refcount. + * This is a compatibility alias for drm_framebuffer_get() and should not be + * used by new code. */ static inline void drm_framebuffer_reference(struct drm_framebuffer *fb) { - drm_mode_object_reference(&fb->base); + drm_framebuffer_get(fb); } /** - * drm_framebuffer_unreference - unref a framebuffer - * @fb: framebuffer to unref + * drm_framebuffer_unreference - release a framebuffer reference + * @fb: DRM framebuffer * - * This functions decrements the fb's refcount and frees it if it drops to zero. + * This is a compatibility alias for drm_framebuffer_put() and should not be + * used by new code. */ static inline void drm_framebuffer_unreference(struct drm_framebuffer *fb) { - drm_mode_object_unreference(&fb->base); + drm_framebuffer_put(fb); } /** @@ -248,9 +273,9 @@ static inline void drm_framebuffer_assign(struct drm_framebuffer **p, struct drm_framebuffer *fb) { if (fb) - drm_framebuffer_reference(fb); + drm_framebuffer_get(fb); if (*p) - drm_framebuffer_unreference(*p); + drm_framebuffer_put(*p); *p = fb; } diff --git a/scripts/coccinelle/api/drm-get-put.cocci b/scripts/coccinelle/api/drm-get-put.cocci index 8a4c2cb7889e..fd298c24a465 100644 --- a/scripts/coccinelle/api/drm-get-put.cocci +++ b/scripts/coccinelle/api/drm-get-put.cocci @@ -26,6 +26,12 @@ expression object; | - drm_connector_unreference(object) + drm_connector_put(object) +| +- drm_framebuffer_reference(object) ++ drm_framebuffer_get(object) +| +- drm_framebuffer_unreference(object) ++ drm_framebuffer_put(object) ) @r depends on report@ @@ -41,6 +47,10 @@ drm_mode_object_reference@p(object) drm_connector_unreference@p(object) | drm_connector_reference@p(object) +| +drm_framebuffer_unreference@p(object) +| +drm_framebuffer_reference@p(object) ) @script:python depends on report@ -- cgit v1.2.3 From e6b62714e87c8811d5564b6a0738dcde63a51774 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 28 Feb 2017 15:46:41 +0100 Subject: drm: Introduce drm_gem_object_{get,put}() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For consistency with other reference counting APIs in the kernel, add drm_gem_object_get() and drm_gem_object_put(), as well as an unlocked variant of the latter, to reference count GEM buffer objects. Compatibility aliases are added to keep existing code working. To help speed up the transition, all the instances of the old functions in the DRM core are already replaced in this commit. The existing semantic patch for the DRM subsystem-wide conversion is extended to account for these new helpers. Reviewed-by: Sean Paul Acked-by: Christian König Signed-off-by: Thierry Reding Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-6-thierry.reding@gmail.com --- Documentation/gpu/drm-mm.rst | 14 +++--- drivers/gpu/drm/drm_fb_cma_helper.c | 16 +++---- drivers/gpu/drm/drm_gem.c | 44 +++++++++--------- drivers/gpu/drm/drm_gem_cma_helper.c | 10 ++-- drivers/gpu/drm/drm_prime.c | 10 ++-- include/drm/drm_gem.h | 80 +++++++++++++++++++++++++------- scripts/coccinelle/api/drm-get-put.cocci | 20 ++++++++ 7 files changed, 130 insertions(+), 64 deletions(-) (limited to 'scripts') diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst index f5760b140f13..fd35998acefc 100644 --- a/Documentation/gpu/drm-mm.rst +++ b/Documentation/gpu/drm-mm.rst @@ -183,14 +183,12 @@ GEM Objects Lifetime -------------------- All GEM objects are reference-counted by the GEM core. References can be -acquired and release by :c:func:`calling -drm_gem_object_reference()` and -:c:func:`drm_gem_object_unreference()` respectively. The caller -must hold the :c:type:`struct drm_device ` -struct_mutex lock when calling -:c:func:`drm_gem_object_reference()`. As a convenience, GEM -provides :c:func:`drm_gem_object_unreference_unlocked()` -functions that can be called without holding the lock. +acquired and release by :c:func:`calling drm_gem_object_get()` and +:c:func:`drm_gem_object_put()` respectively. The caller must hold the +:c:type:`struct drm_device ` struct_mutex lock when calling +:c:func:`drm_gem_object_get()`. As a convenience, GEM provides +:c:func:`drm_gem_object_put_unlocked()` functions that can be called without +holding the lock. When the last reference to a GEM object is released the GEM core calls the :c:type:`struct drm_driver ` gem_free_object diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c index 920bb5764cd6..be6d90664e50 100644 --- a/drivers/gpu/drm/drm_fb_cma_helper.c +++ b/drivers/gpu/drm/drm_fb_cma_helper.c @@ -102,7 +102,7 @@ void drm_fb_cma_destroy(struct drm_framebuffer *fb) for (i = 0; i < 4; i++) { if (fb_cma->obj[i]) - drm_gem_object_unreference_unlocked(&fb_cma->obj[i]->base); + drm_gem_object_put_unlocked(&fb_cma->obj[i]->base); } drm_framebuffer_cleanup(fb); @@ -190,7 +190,7 @@ struct drm_framebuffer *drm_fb_cma_create_with_funcs(struct drm_device *dev, if (!obj) { dev_err(dev->dev, "Failed to lookup GEM object\n"); ret = -ENXIO; - goto err_gem_object_unreference; + goto err_gem_object_put; } min_size = (height - 1) * mode_cmd->pitches[i] @@ -198,9 +198,9 @@ struct drm_framebuffer *drm_fb_cma_create_with_funcs(struct drm_device *dev, + mode_cmd->offsets[i]; if (obj->size < min_size) { - drm_gem_object_unreference_unlocked(obj); + drm_gem_object_put_unlocked(obj); ret = -EINVAL; - goto err_gem_object_unreference; + goto err_gem_object_put; } objs[i] = to_drm_gem_cma_obj(obj); } @@ -208,14 +208,14 @@ struct drm_framebuffer *drm_fb_cma_create_with_funcs(struct drm_device *dev, fb_cma = drm_fb_cma_alloc(dev, mode_cmd, objs, i, funcs); if (IS_ERR(fb_cma)) { ret = PTR_ERR(fb_cma); - goto err_gem_object_unreference; + goto err_gem_object_put; } return &fb_cma->fb; -err_gem_object_unreference: +err_gem_object_put: for (i--; i >= 0; i--) - drm_gem_object_unreference_unlocked(&objs[i]->base); + drm_gem_object_put_unlocked(&objs[i]->base); return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(drm_fb_cma_create_with_funcs); @@ -477,7 +477,7 @@ err_cma_destroy: err_fb_info_destroy: drm_fb_helper_fini(helper); err_gem_free_object: - drm_gem_object_unreference_unlocked(&obj->base); + drm_gem_object_put_unlocked(&obj->base); return ret; } diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index bc93de308673..b1e28c944637 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -218,7 +218,7 @@ static void drm_gem_object_exported_dma_buf_free(struct drm_gem_object *obj) } static void -drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) +drm_gem_object_handle_put_unlocked(struct drm_gem_object *obj) { struct drm_device *dev = obj->dev; bool final = false; @@ -241,7 +241,7 @@ drm_gem_object_handle_unreference_unlocked(struct drm_gem_object *obj) mutex_unlock(&dev->object_name_lock); if (final) - drm_gem_object_unreference_unlocked(obj); + drm_gem_object_put_unlocked(obj); } /* @@ -262,7 +262,7 @@ drm_gem_object_release_handle(int id, void *ptr, void *data) if (dev->driver->gem_close_object) dev->driver->gem_close_object(obj, file_priv); - drm_gem_object_handle_unreference_unlocked(obj); + drm_gem_object_handle_put_unlocked(obj); return 0; } @@ -352,7 +352,7 @@ drm_gem_handle_create_tail(struct drm_file *file_priv, WARN_ON(!mutex_is_locked(&dev->object_name_lock)); if (obj->handle_count++ == 0) - drm_gem_object_reference(obj); + drm_gem_object_get(obj); /* * Get the user-visible handle using idr. Preload and perform @@ -392,7 +392,7 @@ err_remove: idr_remove(&file_priv->object_idr, handle); spin_unlock(&file_priv->table_lock); err_unref: - drm_gem_object_handle_unreference_unlocked(obj); + drm_gem_object_handle_put_unlocked(obj); return ret; } @@ -606,7 +606,7 @@ drm_gem_object_lookup(struct drm_file *filp, u32 handle) /* Check if we currently have a reference on the object */ obj = idr_find(&filp->object_idr, handle); if (obj) - drm_gem_object_reference(obj); + drm_gem_object_get(obj); spin_unlock(&filp->table_lock); @@ -683,7 +683,7 @@ drm_gem_flink_ioctl(struct drm_device *dev, void *data, err: mutex_unlock(&dev->object_name_lock); - drm_gem_object_unreference_unlocked(obj); + drm_gem_object_put_unlocked(obj); return ret; } @@ -713,7 +713,7 @@ drm_gem_open_ioctl(struct drm_device *dev, void *data, mutex_lock(&dev->object_name_lock); obj = idr_find(&dev->object_name_idr, (int) args->name); if (obj) { - drm_gem_object_reference(obj); + drm_gem_object_get(obj); } else { mutex_unlock(&dev->object_name_lock); return -ENOENT; @@ -721,7 +721,7 @@ drm_gem_open_ioctl(struct drm_device *dev, void *data, /* drm_gem_handle_create_tail unlocks dev->object_name_lock. */ ret = drm_gem_handle_create_tail(file_priv, obj, &handle); - drm_gem_object_unreference_unlocked(obj); + drm_gem_object_put_unlocked(obj); if (ret) return ret; @@ -809,16 +809,16 @@ drm_gem_object_free(struct kref *kref) EXPORT_SYMBOL(drm_gem_object_free); /** - * drm_gem_object_unreference_unlocked - release a GEM BO reference + * drm_gem_object_put_unlocked - drop a GEM buffer object reference * @obj: GEM buffer object * * This releases a reference to @obj. Callers must not hold the * &drm_device.struct_mutex lock when calling this function. * - * See also __drm_gem_object_unreference(). + * See also __drm_gem_object_put(). */ void -drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) +drm_gem_object_put_unlocked(struct drm_gem_object *obj) { struct drm_device *dev; @@ -834,10 +834,10 @@ drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) &dev->struct_mutex)) mutex_unlock(&dev->struct_mutex); } -EXPORT_SYMBOL(drm_gem_object_unreference_unlocked); +EXPORT_SYMBOL(drm_gem_object_put_unlocked); /** - * drm_gem_object_unreference - release a GEM BO reference + * drm_gem_object_put - release a GEM buffer object reference * @obj: GEM buffer object * * This releases a reference to @obj. Callers must hold the @@ -845,10 +845,10 @@ EXPORT_SYMBOL(drm_gem_object_unreference_unlocked); * driver doesn't use &drm_device.struct_mutex for anything. * * For drivers not encumbered with legacy locking use - * drm_gem_object_unreference_unlocked() instead. + * drm_gem_object_put_unlocked() instead. */ void -drm_gem_object_unreference(struct drm_gem_object *obj) +drm_gem_object_put(struct drm_gem_object *obj) { if (obj) { WARN_ON(!mutex_is_locked(&obj->dev->struct_mutex)); @@ -856,7 +856,7 @@ drm_gem_object_unreference(struct drm_gem_object *obj) kref_put(&obj->refcount, drm_gem_object_free); } } -EXPORT_SYMBOL(drm_gem_object_unreference); +EXPORT_SYMBOL(drm_gem_object_put); /** * drm_gem_vm_open - vma->ops->open implementation for GEM @@ -869,7 +869,7 @@ void drm_gem_vm_open(struct vm_area_struct *vma) { struct drm_gem_object *obj = vma->vm_private_data; - drm_gem_object_reference(obj); + drm_gem_object_get(obj); } EXPORT_SYMBOL(drm_gem_vm_open); @@ -884,7 +884,7 @@ void drm_gem_vm_close(struct vm_area_struct *vma) { struct drm_gem_object *obj = vma->vm_private_data; - drm_gem_object_unreference_unlocked(obj); + drm_gem_object_put_unlocked(obj); } EXPORT_SYMBOL(drm_gem_vm_close); @@ -935,7 +935,7 @@ int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size, * (which should happen whether the vma was created by this call, or * by a vm_open due to mremap or partial unmap or whatever). */ - drm_gem_object_reference(obj); + drm_gem_object_get(obj); return 0; } @@ -992,14 +992,14 @@ int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma) return -EINVAL; if (!drm_vma_node_is_allowed(node, priv)) { - drm_gem_object_unreference_unlocked(obj); + drm_gem_object_put_unlocked(obj); return -EACCES; } ret = drm_gem_mmap_obj(obj, drm_vma_node_size(node) << PAGE_SHIFT, vma); - drm_gem_object_unreference_unlocked(obj); + drm_gem_object_put_unlocked(obj); return ret; } diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c index 5cf38a474845..906984d4bec2 100644 --- a/drivers/gpu/drm/drm_gem_cma_helper.c +++ b/drivers/gpu/drm/drm_gem_cma_helper.c @@ -121,7 +121,7 @@ struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm, return cma_obj; error: - drm_gem_object_unreference_unlocked(&cma_obj->base); + drm_gem_object_put_unlocked(&cma_obj->base); return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(drm_gem_cma_create); @@ -163,7 +163,7 @@ drm_gem_cma_create_with_handle(struct drm_file *file_priv, */ ret = drm_gem_handle_create(file_priv, gem_obj, handle); /* drop reference from allocate - handle holds it now. */ - drm_gem_object_unreference_unlocked(gem_obj); + drm_gem_object_put_unlocked(gem_obj); if (ret) return ERR_PTR(ret); @@ -293,7 +293,7 @@ int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv, *offset = drm_vma_node_offset_addr(&gem_obj->vma_node); - drm_gem_object_unreference_unlocked(gem_obj); + drm_gem_object_put_unlocked(gem_obj); return 0; } @@ -416,13 +416,13 @@ unsigned long drm_gem_cma_get_unmapped_area(struct file *filp, return -EINVAL; if (!drm_vma_node_is_allowed(node, priv)) { - drm_gem_object_unreference_unlocked(obj); + drm_gem_object_put_unlocked(obj); return -EACCES; } cma_obj = to_drm_gem_cma_obj(obj); - drm_gem_object_unreference_unlocked(obj); + drm_gem_object_put_unlocked(obj); return cma_obj->vaddr ? (unsigned long)cma_obj->vaddr : -EINVAL; } diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c index 25aa4558f1b5..866b294e7c61 100644 --- a/drivers/gpu/drm/drm_prime.c +++ b/drivers/gpu/drm/drm_prime.c @@ -318,7 +318,7 @@ struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev, return dma_buf; drm_dev_ref(dev); - drm_gem_object_reference(exp_info->priv); + drm_gem_object_get(exp_info->priv); return dma_buf; } @@ -339,7 +339,7 @@ void drm_gem_dmabuf_release(struct dma_buf *dma_buf) struct drm_device *dev = obj->dev; /* drop the reference on the export fd holds */ - drm_gem_object_unreference_unlocked(obj); + drm_gem_object_put_unlocked(obj); drm_dev_unref(dev); } @@ -585,7 +585,7 @@ out_have_handle: fail_put_dmabuf: dma_buf_put(dmabuf); out: - drm_gem_object_unreference_unlocked(obj); + drm_gem_object_put_unlocked(obj); out_unlock: mutex_unlock(&file_priv->prime.lock); @@ -616,7 +616,7 @@ struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev, * Importing dmabuf exported from out own gem increases * refcount on gem itself instead of f_count of dmabuf. */ - drm_gem_object_reference(obj); + drm_gem_object_get(obj); return obj; } } @@ -704,7 +704,7 @@ int drm_gem_prime_fd_to_handle(struct drm_device *dev, /* _handle_create_tail unconditionally unlocks dev->object_name_lock. */ ret = drm_gem_handle_create_tail(file_priv, obj, handle); - drm_gem_object_unreference_unlocked(obj); + drm_gem_object_put_unlocked(obj); if (ret) goto out_put; diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h index 449a41b56ffc..3b2a28f7f49f 100644 --- a/include/drm/drm_gem.h +++ b/include/drm/drm_gem.h @@ -48,9 +48,9 @@ struct drm_gem_object { * * Reference count of this object * - * Please use drm_gem_object_reference() to acquire and - * drm_gem_object_unreference() or drm_gem_object_unreference_unlocked() - * to release a reference to a GEM buffer object. + * Please use drm_gem_object_get() to acquire and drm_gem_object_put() + * or drm_gem_object_put_unlocked() to release a reference to a GEM + * buffer object. */ struct kref refcount; @@ -187,42 +187,90 @@ int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size, int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); /** - * drm_gem_object_reference - acquire a GEM BO reference + * drm_gem_object_get - acquire a GEM buffer object reference * @obj: GEM buffer object * - * This acquires additional reference to @obj. It is illegal to call this - * without already holding a reference. No locks required. + * This function acquires an additional reference to @obj. It is illegal to + * call this without already holding a reference. No locks required. */ -static inline void -drm_gem_object_reference(struct drm_gem_object *obj) +static inline void drm_gem_object_get(struct drm_gem_object *obj) { kref_get(&obj->refcount); } /** - * __drm_gem_object_unreference - raw function to release a GEM BO reference + * __drm_gem_object_put - raw function to release a GEM buffer object reference * @obj: GEM buffer object * * This function is meant to be used by drivers which are not encumbered with * &drm_device.struct_mutex legacy locking and which are using the * gem_free_object_unlocked callback. It avoids all the locking checks and - * locking overhead of drm_gem_object_unreference() and - * drm_gem_object_unreference_unlocked(). + * locking overhead of drm_gem_object_put() and drm_gem_object_put_unlocked(). * * Drivers should never call this directly in their code. Instead they should - * wrap it up into a ``driver_gem_object_unreference(struct driver_gem_object - * *obj)`` wrapper function, and use that. Shared code should never call this, to + * wrap it up into a ``driver_gem_object_put(struct driver_gem_object *obj)`` + * wrapper function, and use that. Shared code should never call this, to * avoid breaking drivers by accident which still depend upon * &drm_device.struct_mutex locking. */ static inline void -__drm_gem_object_unreference(struct drm_gem_object *obj) +__drm_gem_object_put(struct drm_gem_object *obj) { kref_put(&obj->refcount, drm_gem_object_free); } -void drm_gem_object_unreference_unlocked(struct drm_gem_object *obj); -void drm_gem_object_unreference(struct drm_gem_object *obj); +void drm_gem_object_put_unlocked(struct drm_gem_object *obj); +void drm_gem_object_put(struct drm_gem_object *obj); + +/** + * drm_gem_object_reference - acquire a GEM buffer object reference + * @obj: GEM buffer object + * + * This is a compatibility alias for drm_gem_object_get() and should not be + * used by new code. + */ +static inline void drm_gem_object_reference(struct drm_gem_object *obj) +{ + drm_gem_object_get(obj); +} + +/** + * __drm_gem_object_unreference - raw function to release a GEM buffer object + * reference + * @obj: GEM buffer object + * + * This is a compatibility alias for __drm_gem_object_put() and should not be + * used by new code. + */ +static inline void __drm_gem_object_unreference(struct drm_gem_object *obj) +{ + __drm_gem_object_put(obj); +} + +/** + * drm_gem_object_unreference_unlocked - release a GEM buffer object reference + * @obj: GEM buffer object + * + * This is a compatibility alias for drm_gem_object_put_unlocked() and should + * not be used by new code. + */ +static inline void +drm_gem_object_unreference_unlocked(struct drm_gem_object *obj) +{ + drm_gem_object_put_unlocked(obj); +} + +/** + * drm_gem_object_unreference - release a GEM buffer object reference + * @obj: GEM buffer object + * + * This is a compatibility alias for drm_gem_object_put() and should not be + * used by new code. + */ +static inline void drm_gem_object_unreference(struct drm_gem_object *obj) +{ + drm_gem_object_put(obj); +} int drm_gem_handle_create(struct drm_file *file_priv, struct drm_gem_object *obj, diff --git a/scripts/coccinelle/api/drm-get-put.cocci b/scripts/coccinelle/api/drm-get-put.cocci index fd298c24a465..24882547b4d1 100644 --- a/scripts/coccinelle/api/drm-get-put.cocci +++ b/scripts/coccinelle/api/drm-get-put.cocci @@ -32,6 +32,18 @@ expression object; | - drm_framebuffer_unreference(object) + drm_framebuffer_put(object) +| +- drm_gem_object_reference(object) ++ drm_gem_object_get(object) +| +- drm_gem_object_unreference(object) ++ drm_gem_object_put(object) +| +- __drm_gem_object_unreference(object) ++ __drm_gem_object_put(object) +| +- drm_gem_object_unreference_unlocked(object) ++ drm_gem_object_put_unlocked(object) ) @r depends on report@ @@ -51,6 +63,14 @@ drm_connector_reference@p(object) drm_framebuffer_unreference@p(object) | drm_framebuffer_reference@p(object) +| +drm_gem_object_unreference@p(object) +| +drm_gem_object_reference@p(object) +| +__drm_gem_object_unreference(object) +| +drm_gem_object_unreference_unlocked(object) ) @script:python depends on report@ -- cgit v1.2.3 From 6472e5090be7c78749a3c279b4faae87ab835c40 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Tue, 28 Feb 2017 15:46:42 +0100 Subject: drm: Introduce drm_property_blob_{get,put}() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For consistency with other reference counting APIs in the kernel, add drm_property_blob_get() and drm_property_blob_put() to reference count DRM blob properties. Compatibility aliases are added to keep existing code working. To help speed up the transition, all the instances of the old functions in the DRM core are already replaced in this commit. A semantic patch is provided that can be used to convert all drivers to the new helpers. Reviewed-by: Sean Paul Acked-by: Christian König Signed-off-by: Thierry Reding Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-7-thierry.reding@gmail.com --- drivers/gpu/drm/drm_atomic.c | 16 ++++++------- drivers/gpu/drm/drm_atomic_helper.c | 18 +++++++------- drivers/gpu/drm/drm_mode_config.c | 2 +- drivers/gpu/drm/drm_property.c | 40 ++++++++++++++++---------------- include/drm/drm_property.h | 35 ++++++++++++++++++++++++---- scripts/coccinelle/api/drm-get-put.cocci | 10 ++++++++ 6 files changed, 78 insertions(+), 43 deletions(-) (limited to 'scripts') diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 38cf374e7552..aea8bbad1674 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -324,7 +324,7 @@ int drm_atomic_set_mode_for_crtc(struct drm_crtc_state *state, if (mode && memcmp(&state->mode, mode, sizeof(*mode)) == 0) return 0; - drm_property_unreference_blob(state->mode_blob); + drm_property_blob_put(state->mode_blob); state->mode_blob = NULL; if (mode) { @@ -370,7 +370,7 @@ int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state, if (blob == state->mode_blob) return 0; - drm_property_unreference_blob(state->mode_blob); + drm_property_blob_put(state->mode_blob); state->mode_blob = NULL; memset(&state->mode, 0, sizeof(state->mode)); @@ -382,7 +382,7 @@ int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state, blob->data)) return -EINVAL; - state->mode_blob = drm_property_reference_blob(blob); + state->mode_blob = drm_property_blob_get(blob); state->enable = true; DRM_DEBUG_ATOMIC("Set [MODE:%s] for CRTC state %p\n", state->mode.name, state); @@ -415,9 +415,9 @@ drm_atomic_replace_property_blob(struct drm_property_blob **blob, if (old_blob == new_blob) return; - drm_property_unreference_blob(old_blob); + drm_property_blob_put(old_blob); if (new_blob) - drm_property_reference_blob(new_blob); + drm_property_blob_get(new_blob); *blob = new_blob; *replaced = true; @@ -439,13 +439,13 @@ drm_atomic_replace_property_blob_from_id(struct drm_crtc *crtc, return -EINVAL; if (expected_size > 0 && expected_size != new_blob->length) { - drm_property_unreference_blob(new_blob); + drm_property_blob_put(new_blob); return -EINVAL; } } drm_atomic_replace_property_blob(blob, new_blob, replaced); - drm_property_unreference_blob(new_blob); + drm_property_blob_put(new_blob); return 0; } @@ -480,7 +480,7 @@ int drm_atomic_crtc_set_property(struct drm_crtc *crtc, struct drm_property_blob *mode = drm_property_lookup_blob(dev, val); ret = drm_atomic_set_mode_prop_for_crtc(state, mode); - drm_property_unreference_blob(mode); + drm_property_blob_put(mode); return ret; } else if (property == config->degamma_lut_property) { ret = drm_atomic_replace_property_blob_from_id(crtc, diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 01b2dddbd431..ffcae3fa94f9 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -3120,13 +3120,13 @@ void __drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc, memcpy(state, crtc->state, sizeof(*state)); if (state->mode_blob) - drm_property_reference_blob(state->mode_blob); + drm_property_blob_get(state->mode_blob); if (state->degamma_lut) - drm_property_reference_blob(state->degamma_lut); + drm_property_blob_get(state->degamma_lut); if (state->ctm) - drm_property_reference_blob(state->ctm); + drm_property_blob_get(state->ctm); if (state->gamma_lut) - drm_property_reference_blob(state->gamma_lut); + drm_property_blob_get(state->gamma_lut); state->mode_changed = false; state->active_changed = false; state->planes_changed = false; @@ -3171,10 +3171,10 @@ EXPORT_SYMBOL(drm_atomic_helper_crtc_duplicate_state); */ void __drm_atomic_helper_crtc_destroy_state(struct drm_crtc_state *state) { - drm_property_unreference_blob(state->mode_blob); - drm_property_unreference_blob(state->degamma_lut); - drm_property_unreference_blob(state->ctm); - drm_property_unreference_blob(state->gamma_lut); + drm_property_blob_put(state->mode_blob); + drm_property_blob_put(state->degamma_lut); + drm_property_blob_put(state->ctm); + drm_property_blob_put(state->gamma_lut); } EXPORT_SYMBOL(__drm_atomic_helper_crtc_destroy_state); @@ -3572,7 +3572,7 @@ fail: goto backoff; drm_atomic_state_put(state); - drm_property_unreference_blob(blob); + drm_property_blob_put(blob); return ret; backoff: diff --git a/drivers/gpu/drm/drm_mode_config.c b/drivers/gpu/drm/drm_mode_config.c index 20aec165abd7..37779b9f0c1e 100644 --- a/drivers/gpu/drm/drm_mode_config.c +++ b/drivers/gpu/drm/drm_mode_config.c @@ -444,7 +444,7 @@ void drm_mode_config_cleanup(struct drm_device *dev) list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, head_global) { - drm_property_unreference_blob(blob); + drm_property_blob_put(blob); } /* diff --git a/drivers/gpu/drm/drm_property.c b/drivers/gpu/drm/drm_property.c index 15af0d42e8be..b17959c3e099 100644 --- a/drivers/gpu/drm/drm_property.c +++ b/drivers/gpu/drm/drm_property.c @@ -587,19 +587,19 @@ drm_property_create_blob(struct drm_device *dev, size_t length, EXPORT_SYMBOL(drm_property_create_blob); /** - * drm_property_unreference_blob - Unreference a blob property - * @blob: Pointer to blob property + * drm_property_blob_put - release a blob property reference + * @blob: DRM blob property * - * Drop a reference on a blob property. May free the object. + * Releases a reference to a blob property. May free the object. */ -void drm_property_unreference_blob(struct drm_property_blob *blob) +void drm_property_blob_put(struct drm_property_blob *blob) { if (!blob) return; drm_mode_object_put(&blob->base); } -EXPORT_SYMBOL(drm_property_unreference_blob); +EXPORT_SYMBOL(drm_property_blob_put); void drm_property_destroy_user_blobs(struct drm_device *dev, struct drm_file *file_priv) @@ -612,23 +612,23 @@ void drm_property_destroy_user_blobs(struct drm_device *dev, */ list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) { list_del_init(&blob->head_file); - drm_property_unreference_blob(blob); + drm_property_blob_put(blob); } } /** - * drm_property_reference_blob - Take a reference on an existing property - * @blob: Pointer to blob property + * drm_property_blob_get - acquire blob property reference + * @blob: DRM blob property * - * Take a new reference on an existing blob property. Returns @blob, which + * Acquires a reference to an existing blob property. Returns @blob, which * allows this to be used as a shorthand in assignments. */ -struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) +struct drm_property_blob *drm_property_blob_get(struct drm_property_blob *blob) { drm_mode_object_get(&blob->base); return blob; } -EXPORT_SYMBOL(drm_property_reference_blob); +EXPORT_SYMBOL(drm_property_blob_get); /** * drm_property_lookup_blob - look up a blob property and take a reference @@ -637,7 +637,7 @@ EXPORT_SYMBOL(drm_property_reference_blob); * * If successful, this takes an additional reference to the blob property. * callers need to make sure to eventually unreference the returned property - * again, using @drm_property_unreference_blob. + * again, using drm_property_blob_put(). * * Return: * NULL on failure, pointer to the blob on success. @@ -712,13 +712,13 @@ int drm_property_replace_global_blob(struct drm_device *dev, goto err_created; } - drm_property_unreference_blob(old_blob); + drm_property_blob_put(old_blob); *replace = new_blob; return 0; err_created: - drm_property_unreference_blob(new_blob); + drm_property_blob_put(new_blob); return ret; } EXPORT_SYMBOL(drm_property_replace_global_blob); @@ -747,7 +747,7 @@ int drm_mode_getblob_ioctl(struct drm_device *dev, } out_resp->length = blob->length; unref: - drm_property_unreference_blob(blob); + drm_property_blob_put(blob); return ret; } @@ -784,7 +784,7 @@ int drm_mode_createblob_ioctl(struct drm_device *dev, return 0; out_blob: - drm_property_unreference_blob(blob); + drm_property_blob_put(blob); return ret; } @@ -823,14 +823,14 @@ int drm_mode_destroyblob_ioctl(struct drm_device *dev, mutex_unlock(&dev->mode_config.blob_lock); /* One reference from lookup, and one from the filp. */ - drm_property_unreference_blob(blob); - drm_property_unreference_blob(blob); + drm_property_blob_put(blob); + drm_property_blob_put(blob); return 0; err: mutex_unlock(&dev->mode_config.blob_lock); - drm_property_unreference_blob(blob); + drm_property_blob_put(blob); return ret; } @@ -908,5 +908,5 @@ void drm_property_change_valid_put(struct drm_property *property, if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { drm_mode_object_put(ref); } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) - drm_property_unreference_blob(obj_to_blob(ref)); + drm_property_blob_put(obj_to_blob(ref)); } diff --git a/include/drm/drm_property.h b/include/drm/drm_property.h index f66fdb47551c..13e8c17d1c79 100644 --- a/include/drm/drm_property.h +++ b/include/drm/drm_property.h @@ -200,9 +200,8 @@ struct drm_property { * Blobs are used to store bigger values than what fits directly into the 64 * bits available for a &drm_property. * - * Blobs are reference counted using drm_property_reference_blob() and - * drm_property_unreference_blob(). They are created using - * drm_property_create_blob(). + * Blobs are reference counted using drm_property_blob_get() and + * drm_property_blob_put(). They are created using drm_property_create_blob(). */ struct drm_property_blob { struct drm_mode_object base; @@ -274,8 +273,34 @@ int drm_property_replace_global_blob(struct drm_device *dev, const void *data, struct drm_mode_object *obj_holds_id, struct drm_property *prop_holds_id); -struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob); -void drm_property_unreference_blob(struct drm_property_blob *blob); +struct drm_property_blob *drm_property_blob_get(struct drm_property_blob *blob); +void drm_property_blob_put(struct drm_property_blob *blob); + +/** + * drm_property_reference_blob - acquire a blob property reference + * @blob: DRM blob property + * + * This is a compatibility alias for drm_property_blob_get() and should not be + * used by new code. + */ +static inline struct drm_property_blob * +drm_property_reference_blob(struct drm_property_blob *blob) +{ + return drm_property_blob_get(blob); +} + +/** + * drm_property_unreference_blob - release a blob property reference + * @blob: DRM blob property + * + * This is a compatibility alias for drm_property_blob_put() and should not be + * used by new code. + */ +static inline void +drm_property_unreference_blob(struct drm_property_blob *blob) +{ + drm_property_blob_put(blob); +} /** * drm_connector_find - find property object diff --git a/scripts/coccinelle/api/drm-get-put.cocci b/scripts/coccinelle/api/drm-get-put.cocci index 24882547b4d1..0c7a9265c07e 100644 --- a/scripts/coccinelle/api/drm-get-put.cocci +++ b/scripts/coccinelle/api/drm-get-put.cocci @@ -44,6 +44,12 @@ expression object; | - drm_gem_object_unreference_unlocked(object) + drm_gem_object_put_unlocked(object) +| +- drm_property_reference_blob(object) ++ drm_property_blob_get(object) +| +- drm_property_unreference_blob(object) ++ drm_property_blob_put(object) ) @r depends on report@ @@ -71,6 +77,10 @@ drm_gem_object_reference@p(object) __drm_gem_object_unreference(object) | drm_gem_object_unreference_unlocked(object) +| +drm_property_unreference_blob@p(object) +| +drm_property_reference_blob@p(object) ) @script:python depends on report@ -- cgit v1.2.3 From c017c71ce09f4c7a5378fccbec6a3d7e96b0c5c2 Mon Sep 17 00:00:00 2001 From: Nicolas Iooss Date: Sun, 5 Mar 2017 15:01:52 +0100 Subject: selinux: include sys/socket.h in host programs to have PF_MAX Compiling with clang and -Wundef makes the compiler report a usage of undefined PF_MAX macro in security/selinux/include/classmap.h: In file included from scripts/selinux/mdp/mdp.c:48: security/selinux/include/classmap.h:37:31: warning: no previous extern declaration for non-static variable 'secclass_map' [-Wmissing-variable-declarations] struct security_class_mapping secclass_map[] = { ^ security/selinux/include/classmap.h:235:5: error: 'PF_MAX' is not defined, evaluates to 0 [-Werror,-Wundef] #if PF_MAX > 43 ^ In file included from scripts/selinux/genheaders/genheaders.c:17: security/selinux/include/classmap.h:37:31: warning: no previous extern declaration for non-static variable 'secclass_map' [-Wmissing-variable-declarations] struct security_class_mapping secclass_map[] = { ^ security/selinux/include/classmap.h:235:5: error: 'PF_MAX' is not defined, evaluates to 0 [-Werror,-Wundef] #if PF_MAX > 43 ^ PF_MAX is defined in include/linux/socket.h but not in include/uapi/linux/socket.h. Therefore host programs have to rely on the definition from libc's /usr/include/bits/socket.h, included by . Fix the issue by using sys/socket.h in mdp and genheaders. When classmap.h is included by security/selinux/avc.c, it uses the kernel definition of PF_MAX, which makes the test consistent. Signed-off-by: Nicolas Iooss Signed-off-by: Paul Moore --- scripts/selinux/genheaders/genheaders.c | 1 + scripts/selinux/mdp/mdp.c | 1 + 2 files changed, 2 insertions(+) (limited to 'scripts') diff --git a/scripts/selinux/genheaders/genheaders.c b/scripts/selinux/genheaders/genheaders.c index f4dd41f900d5..6a24569c3578 100644 --- a/scripts/selinux/genheaders/genheaders.c +++ b/scripts/selinux/genheaders/genheaders.c @@ -8,6 +8,7 @@ #include #include #include +#include struct security_class_mapping { const char *name; diff --git a/scripts/selinux/mdp/mdp.c b/scripts/selinux/mdp/mdp.c index c29fa4a6228d..ffe8179f5d41 100644 --- a/scripts/selinux/mdp/mdp.c +++ b/scripts/selinux/mdp/mdp.c @@ -32,6 +32,7 @@ #include #include #include +#include static void usage(char *name) { -- cgit v1.2.3 From 65ba6fa439e7c3cbf97de9dce9e7a3390ae2638c Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Thu, 16 Feb 2017 13:18:20 -0800 Subject: scripts: objdiff: Ignore debug info when comparing If the kernel is configured to be built with debug symbols, or has bug tables, comparing files may not work if line numbers change. This makes comparing object files with these options harder to do. Let's strip out the debug info and drop the __bug_table here so that we don't see false positives. There may be other things to drop later, and it may be architecture specific, but this works for me with my ARM64 build. Signed-off-by: Stephen Boyd Reviewed-by: Jason Cooper Signed-off-by: Masahiro Yamada --- scripts/objdiff | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'scripts') diff --git a/scripts/objdiff b/scripts/objdiff index 62e51dae2138..4fb5d6796893 100755 --- a/scripts/objdiff +++ b/scripts/objdiff @@ -57,13 +57,15 @@ get_output_dir() { do_objdump() { dir=$(get_output_dir $1) base=${1##*/} + stripped=$dir/${base%.o}.stripped dis=$dir/${base%.o}.dis [ ! -d "$dir" ] && mkdir -p $dir # remove addresses for a cleaner diff # http://dummdida.tumblr.com/post/60924060451/binary-diff-between-libc-from-scientificlinux-and - $OBJDUMP -D $1 | sed "s/^[[:space:]]\+[0-9a-f]\+//" > $dis + $STRIP -g $1 -R __bug_table -R .note -R .comment -o $stripped + $OBJDUMP -D $stripped | sed -e "s/^[[:space:]]\+[0-9a-f]\+//" -e "s:^$stripped:$1:" > $dis } dorecord() { @@ -73,6 +75,7 @@ dorecord() { CMT="`git rev-parse --short HEAD`" + STRIP="${CROSS_COMPILE}strip" OBJDUMP="${CROSS_COMPILE}objdump" for d in $FILES; do -- cgit v1.2.3 From 4607ebf04b8190d2c7aa5504959e9fddfc0cd736 Mon Sep 17 00:00:00 2001 From: "Allan, Bruce W" Date: Tue, 7 Mar 2017 15:48:23 -0800 Subject: kbuild: external module build warnings when KBUILD_OUTPUT set and W=1 Commit db547ef19064 ("Kbuild: don't add obj tree in additional includes") causes warnings (-Wmissing-include-dirs) when compiling external modules with KBUILD_OUTPUT set and W=1. This is because $src can be an absolute path to the external module source which when prefixed with -I$(srctree)/ generates an incorrect directory path. Signed-off-by: Bruce Allan Acked-by: Arnd Bergmann Signed-off-by: Masahiro Yamada --- scripts/Makefile.lib | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'scripts') diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 0a07f9014944..7234e61e7ce3 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -155,7 +155,7 @@ else # $(call addtree,-I$(obj)) locates .h files in srctree, from generated .c files # and locates generated .h files # FIXME: Replace both with specific CFLAGS* statements in the makefiles -__c_flags = $(if $(obj),-I$(srctree)/$(src) -I$(obj)) \ +__c_flags = $(if $(obj),$(call addtree,-I$(src)) -I$(obj)) \ $(call flags,_c_flags) __a_flags = $(call flags,_a_flags) __cpp_flags = $(call flags,_cpp_flags) -- cgit v1.2.3 From 5bd933fe4481688d595ae1dd0440006c8675a1a8 Mon Sep 17 00:00:00 2001 From: David Daney Date: Tue, 7 Mar 2017 17:31:08 -0800 Subject: module: set .init_array alignment to 8 The proper idiom for aligning linker sections in modules is different than for built-in sections. ". = ALIGN();" followed by a forced output address of 0 does nothing, as forcing the address changes the value of ".". Use output section alignment specifier instead. Fixes: 9ddf82521c86 ("kernel: add support for .init_array.* constructors") Reviewed-by: Andrey Ryabinin Signed-off-by: David Daney Signed-off-by: Jessica Yu --- scripts/module-common.lds | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'scripts') diff --git a/scripts/module-common.lds b/scripts/module-common.lds index 9b6e246a45d0..d61b9e8678e8 100644 --- a/scripts/module-common.lds +++ b/scripts/module-common.lds @@ -20,8 +20,7 @@ SECTIONS { __kcrctab_unused_gpl 0 : { *(SORT(___kcrctab_unused_gpl+*)) } __kcrctab_gpl_future 0 : { *(SORT(___kcrctab_gpl_future+*)) } - . = ALIGN(8); - .init_array 0 : { *(SORT(.init_array.*)) *(.init_array) } + .init_array 0 : ALIGN(8) { *(SORT(.init_array.*)) *(.init_array) } __jump_table 0 : ALIGN(8) { KEEP(*(__jump_table)) } } -- cgit v1.2.3 From 09549aa1baa90d9e273ecd6c69c493bea6473dec Mon Sep 17 00:00:00 2001 From: Michal Marek Date: Tue, 22 Nov 2016 22:34:34 +0100 Subject: deb-pkg: Remove the KBUILD_IMAGE workaround The arch Makefile are fixed to set KBUILD_IMAGE to the full patch, so the workaround is no longer needed. Signed-off-by: Michal Marek Reviewed-by: Riku Voipio Signed-off-by: Masahiro Yamada --- scripts/package/builddeb | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'scripts') diff --git a/scripts/package/builddeb b/scripts/package/builddeb index 3c575cd07888..f04e91f0845d 100755 --- a/scripts/package/builddeb +++ b/scripts/package/builddeb @@ -143,12 +143,7 @@ else cp System.map "$tmpdir/boot/System.map-$version" cp $KCONFIG_CONFIG "$tmpdir/boot/config-$version" fi -# Not all arches include the boot path in KBUILD_IMAGE -if [ -e $KBUILD_IMAGE ]; then - cp $KBUILD_IMAGE "$tmpdir/$installed_image_path" -else - cp arch/$ARCH/boot/$KBUILD_IMAGE "$tmpdir/$installed_image_path" -fi +cp "$($MAKE -s image_name)" "$tmpdir/$installed_image_path" if grep -q "^CONFIG_OF=y" $KCONFIG_CONFIG ; then # Only some architectures with OF support have this target -- cgit v1.2.3 From 9be3213b14d44f6328281941193d97f3b97e7d4c Mon Sep 17 00:00:00 2001 From: Nicolas Iooss Date: Mon, 13 Mar 2017 20:33:41 +0100 Subject: gconfig: remove misleading parentheses around a condition When building the kernel with clang, the compiler complains about the presence of a condition inside two pairs of parentheses: scripts/kconfig/gconf.c:917:19: error: equality comparison with extraneous parentheses [-Werror,-Wparentheses-equality] } else if ((col == COL_OPTION)) { ~~~~^~~~~~~~~~~~~ scripts/kconfig/gconf.c:917:19: note: remove extraneous parentheses around the comparison to silence this warning } else if ((col == COL_OPTION)) { ~ ^ ~ scripts/kconfig/gconf.c:917:19: note: use '=' to turn this equality comparison into an assignment } else if ((col == COL_OPTION)) { ^~ = Silence this warning by removing a level of parentheses. Signed-off-by: Nicolas Iooss Signed-off-by: Masahiro Yamada --- scripts/kconfig/gconf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'scripts') diff --git a/scripts/kconfig/gconf.c b/scripts/kconfig/gconf.c index 26d208b435a0..cfddddb9c9d7 100644 --- a/scripts/kconfig/gconf.c +++ b/scripts/kconfig/gconf.c @@ -914,7 +914,7 @@ on_treeview2_button_press_event(GtkWidget * widget, current = menu; display_tree_part(); gtk_widget_set_sensitive(back_btn, TRUE); - } else if ((col == COL_OPTION)) { + } else if (col == COL_OPTION) { toggle_sym_value(menu); gtk_tree_view_expand_row(view, path, TRUE); } -- cgit v1.2.3 From 86cef6144d273404d8cb5c0b215ada8d23e5dbeb Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Tue, 21 Mar 2017 08:28:11 -0500 Subject: scripts/dtc: automate getting dtc version and log in update script Further automate the dtc update script to fill in the dtc version and commit log. Signed-off-by: Rob Herring --- scripts/dtc/update-dtc-source.sh | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) (limited to 'scripts') diff --git a/scripts/dtc/update-dtc-source.sh b/scripts/dtc/update-dtc-source.sh index f5cde799db03..c92e6bd9458d 100755 --- a/scripts/dtc/update-dtc-source.sh +++ b/scripts/dtc/update-dtc-source.sh @@ -36,10 +36,19 @@ DTC_SOURCE="checks.c data.c dtc.c dtc.h flattree.c fstree.c livetree.c srcpos.c DTC_GENERATED="dtc-lexer.lex.c dtc-parser.tab.c dtc-parser.tab.h" LIBFDT_SOURCE="Makefile.libfdt fdt.c fdt.h fdt_empty_tree.c fdt_ro.c fdt_rw.c fdt_strerror.c fdt_sw.c fdt_wip.c libfdt.h libfdt_env.h libfdt_internal.h" +get_last_dtc_version() { + git log --oneline scripts/dtc/ | grep 'upstream' | head -1 | sed -e 's/^.* \(.*\)/\1/' +} + +last_dtc_ver=$(get_last_dtc_version) + # Build DTC cd $DTC_UPSTREAM_PATH make clean make check +dtc_version=$(git describe HEAD) +dtc_log=$(git log --oneline ${last_dtc_ver}..) + # Copy the files into the Linux tree cd $DTC_LINUX_PATH @@ -60,4 +69,12 @@ sed -i -- 's/#include /#include "libfdt_env.h"/g' ./libfdt/libfdt. sed -i -- 's/#include /#include "fdt.h"/g' ./libfdt/libfdt.h git add ./libfdt/libfdt.h -git commit -e -v -m "scripts/dtc: Update to upstream version [CHANGEME]" +commit_msg=$(cat << EOF +scripts/dtc: Update to upstream version ${dtc_version} + +This adds the following commits from upstream: + +${dtc_log} +EOF +) +git commit -e -v -s -m "${commit_msg}" -- cgit v1.2.3 From 89d123106a97bf412a4c10482044c822f4b069f7 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Tue, 21 Mar 2017 09:01:08 -0500 Subject: scripts/dtc: Update to upstream version v1.4.4-8-g756ffc4f52f6 This adds the following commits from upstream: 756ffc4f52f6 Build pylibfdt as part of the normal build process 8cb3896358e9 Adjust libfdt.h to work with swig b40aa8359aff Mention pylibfdt in the documentation 12cfb740cc76 Add tests for pylibfdt 50f250701631 Add an initial Python library for libfdt cdbb2b6c7a3a checks: Warn on node name unit-addresses with '0x' or leading 0s 4c15d5da17cc checks: Add bus checks for simple-bus buses 33c3985226d3 checks: Add bus checks for PCI buses 558cd81bdd43 dtc: Bump version to v1.4.4 c17a811c62eb fdtput: Remove star from value_len documentation 194d5caaefcb fdtget: Use @return to document the return value d922ecdd017b tests: Make realloc_fdt() really allocate *fdt 921cc17fec29 libfdt: overlay: Check the value of the right variable 9ffdf60bf463 dtc: Simplify asm_emit_string() implementation 881012e44386 libfdt: Change names of sparse helper macros bad5b28049e5 Fix assorted sparse warnings 672ac09ea04d Clean up gcc attributes 49300f2ade6a dtc: Don't abuse struct fdt_reserve_entry fa8bc7f928ac dtc: Bump version to v1.4.3 34a9886a177f Add printf format attributes f72508e2b6ca Correct some broken printf() like format mismatches 397d5ef0203c libfdt: Add fdt_setprop_empty() 69a1bd6ad3f9 libfdt: Remove undefined behaviour setting empty properties acd1b534a592 Print output filename as part of warning messages 120775eb1cf3 dtc: Use streq() in preference to strcmp() 852e9ecbe197 checks: Add Warning for stricter node name character checking ef0e8f061534 checks: Add Warning for stricter property name character checking 00d7bb1f4b0e dtc: pos parameter to srcpos_string() can't be NULL 95d57726bca4 livetree.c: Fix memory leak 3b9c97093d6e dtc: Fix NULL pointer use in dtlabel + dtref case 43eb551426ea manual: Fix typo it -> in 4baf15f7f13f Makefile: Add tags rule Signed-off-by: Rob Herring --- scripts/dtc/checks.c | 361 +++++++++++++++++++++++++++++++---- scripts/dtc/data.c | 16 +- scripts/dtc/dtc-lexer.l | 3 +- scripts/dtc/dtc-lexer.lex.c_shipped | 77 ++++---- scripts/dtc/dtc-parser.tab.c_shipped | 6 +- scripts/dtc/dtc-parser.y | 6 +- scripts/dtc/dtc.c | 9 +- scripts/dtc/dtc.h | 11 +- scripts/dtc/flattree.c | 58 +++--- scripts/dtc/libfdt/fdt_rw.c | 3 +- scripts/dtc/libfdt/libfdt.h | 51 ++++- scripts/dtc/libfdt/libfdt_env.h | 26 +-- scripts/dtc/livetree.c | 22 ++- scripts/dtc/srcpos.c | 2 +- scripts/dtc/srcpos.h | 11 +- scripts/dtc/treesource.c | 6 +- scripts/dtc/util.c | 11 +- scripts/dtc/util.h | 24 ++- scripts/dtc/version_gen.h | 2 +- 19 files changed, 523 insertions(+), 182 deletions(-) (limited to 'scripts') diff --git a/scripts/dtc/checks.c b/scripts/dtc/checks.c index 3d18e45374c8..5adfc8f52b4f 100644 --- a/scripts/dtc/checks.c +++ b/scripts/dtc/checks.c @@ -72,17 +72,16 @@ struct check { #define CHECK(_nm, _fn, _d, ...) \ CHECK_ENTRY(_nm, _fn, _d, false, false, __VA_ARGS__) -#ifdef __GNUC__ -static inline void check_msg(struct check *c, const char *fmt, ...) __attribute__((format (printf, 2, 3))); -#endif -static inline void check_msg(struct check *c, const char *fmt, ...) +static inline void PRINTF(3, 4) check_msg(struct check *c, struct dt_info *dti, + const char *fmt, ...) { va_list ap; va_start(ap, fmt); if ((c->warn && (quiet < 1)) || (c->error && (quiet < 2))) { - fprintf(stderr, "%s (%s): ", + fprintf(stderr, "%s: %s (%s): ", + strcmp(dti->outname, "-") ? dti->outname : "", (c->error) ? "ERROR" : "Warning", c->name); vfprintf(stderr, fmt, ap); fprintf(stderr, "\n"); @@ -90,11 +89,11 @@ static inline void check_msg(struct check *c, const char *fmt, ...) va_end(ap); } -#define FAIL(c, ...) \ - do { \ - TRACE((c), "\t\tFAILED at %s:%d", __FILE__, __LINE__); \ - (c)->status = FAILED; \ - check_msg((c), __VA_ARGS__); \ +#define FAIL(c, dti, ...) \ + do { \ + TRACE((c), "\t\tFAILED at %s:%d", __FILE__, __LINE__); \ + (c)->status = FAILED; \ + check_msg((c), dti, __VA_ARGS__); \ } while (0) static void check_nodes_props(struct check *c, struct dt_info *dti, struct node *node) @@ -127,7 +126,7 @@ static bool run_check(struct check *c, struct dt_info *dti) error = error || run_check(prq, dti); if (prq->status != PASSED) { c->status = PREREQ; - check_msg(c, "Failed prerequisite '%s'", + check_msg(c, dti, "Failed prerequisite '%s'", c->prereq[i]->name); } } @@ -157,7 +156,7 @@ out: static inline void check_always_fail(struct check *c, struct dt_info *dti, struct node *node) { - FAIL(c, "always_fail check"); + FAIL(c, dti, "always_fail check"); } CHECK(always_fail, check_always_fail, NULL); @@ -172,7 +171,7 @@ static void check_is_string(struct check *c, struct dt_info *dti, return; /* Not present, assumed ok */ if (!data_is_one_string(prop->val)) - FAIL(c, "\"%s\" property in %s is not a string", + FAIL(c, dti, "\"%s\" property in %s is not a string", propname, node->fullpath); } #define WARNING_IF_NOT_STRING(nm, propname) \ @@ -191,7 +190,7 @@ static void check_is_cell(struct check *c, struct dt_info *dti, return; /* Not present, assumed ok */ if (prop->val.len != sizeof(cell_t)) - FAIL(c, "\"%s\" property in %s is not a single cell", + FAIL(c, dti, "\"%s\" property in %s is not a single cell", propname, node->fullpath); } #define WARNING_IF_NOT_CELL(nm, propname) \ @@ -213,7 +212,7 @@ static void check_duplicate_node_names(struct check *c, struct dt_info *dti, child2; child2 = child2->next_sibling) if (streq(child->name, child2->name)) - FAIL(c, "Duplicate node name %s", + FAIL(c, dti, "Duplicate node name %s", child->fullpath); } ERROR(duplicate_node_names, check_duplicate_node_names, NULL); @@ -228,7 +227,7 @@ static void check_duplicate_property_names(struct check *c, struct dt_info *dti, if (prop2->deleted) continue; if (streq(prop->name, prop2->name)) - FAIL(c, "Duplicate property name %s in %s", + FAIL(c, dti, "Duplicate property name %s in %s", prop->name, node->fullpath); } } @@ -239,6 +238,7 @@ ERROR(duplicate_property_names, check_duplicate_property_names, NULL); #define UPPERCASE "ABCDEFGHIJKLMNOPQRSTUVWXYZ" #define DIGITS "0123456789" #define PROPNODECHARS LOWERCASE UPPERCASE DIGITS ",._+*#?-" +#define PROPNODECHARSSTRICT LOWERCASE UPPERCASE DIGITS ",-" static void check_node_name_chars(struct check *c, struct dt_info *dti, struct node *node) @@ -246,16 +246,27 @@ static void check_node_name_chars(struct check *c, struct dt_info *dti, int n = strspn(node->name, c->data); if (n < strlen(node->name)) - FAIL(c, "Bad character '%c' in node %s", + FAIL(c, dti, "Bad character '%c' in node %s", node->name[n], node->fullpath); } ERROR(node_name_chars, check_node_name_chars, PROPNODECHARS "@"); +static void check_node_name_chars_strict(struct check *c, struct dt_info *dti, + struct node *node) +{ + int n = strspn(node->name, c->data); + + if (n < node->basenamelen) + FAIL(c, dti, "Character '%c' not recommended in node %s", + node->name[n], node->fullpath); +} +CHECK(node_name_chars_strict, check_node_name_chars_strict, PROPNODECHARSSTRICT); + static void check_node_name_format(struct check *c, struct dt_info *dti, struct node *node) { if (strchr(get_unitname(node), '@')) - FAIL(c, "Node %s has multiple '@' characters in name", + FAIL(c, dti, "Node %s has multiple '@' characters in name", node->fullpath); } ERROR(node_name_format, check_node_name_format, NULL, &node_name_chars); @@ -274,11 +285,11 @@ static void check_unit_address_vs_reg(struct check *c, struct dt_info *dti, if (prop) { if (!unitname[0]) - FAIL(c, "Node %s has a reg or ranges property, but no unit name", + FAIL(c, dti, "Node %s has a reg or ranges property, but no unit name", node->fullpath); } else { if (unitname[0]) - FAIL(c, "Node %s has a unit name, but no reg property", + FAIL(c, dti, "Node %s has a unit name, but no reg property", node->fullpath); } } @@ -293,12 +304,44 @@ static void check_property_name_chars(struct check *c, struct dt_info *dti, int n = strspn(prop->name, c->data); if (n < strlen(prop->name)) - FAIL(c, "Bad character '%c' in property name \"%s\", node %s", + FAIL(c, dti, "Bad character '%c' in property name \"%s\", node %s", prop->name[n], prop->name, node->fullpath); } } ERROR(property_name_chars, check_property_name_chars, PROPNODECHARS); +static void check_property_name_chars_strict(struct check *c, + struct dt_info *dti, + struct node *node) +{ + struct property *prop; + + for_each_property(node, prop) { + const char *name = prop->name; + int n = strspn(name, c->data); + + if (n == strlen(prop->name)) + continue; + + /* Certain names are whitelisted */ + if (streq(name, "device_type")) + continue; + + /* + * # is only allowed at the beginning of property names not counting + * the vendor prefix. + */ + if (name[n] == '#' && ((n == 0) || (name[n-1] == ','))) { + name += n + 1; + n = strspn(name, c->data); + } + if (n < strlen(name)) + FAIL(c, dti, "Character '%c' not recommended in property name \"%s\", node %s", + name[n], prop->name, node->fullpath); + } +} +CHECK(property_name_chars_strict, check_property_name_chars_strict, PROPNODECHARSSTRICT); + #define DESCLABEL_FMT "%s%s%s%s%s" #define DESCLABEL_ARGS(node,prop,mark) \ ((mark) ? "value of " : ""), \ @@ -327,7 +370,7 @@ static void check_duplicate_label(struct check *c, struct dt_info *dti, return; if ((othernode != node) || (otherprop != prop) || (othermark != mark)) - FAIL(c, "Duplicate label '%s' on " DESCLABEL_FMT + FAIL(c, dti, "Duplicate label '%s' on " DESCLABEL_FMT " and " DESCLABEL_FMT, label, DESCLABEL_ARGS(node, prop, mark), DESCLABEL_ARGS(othernode, otherprop, othermark)); @@ -367,7 +410,7 @@ static cell_t check_phandle_prop(struct check *c, struct dt_info *dti, return 0; if (prop->val.len != sizeof(cell_t)) { - FAIL(c, "%s has bad length (%d) %s property", + FAIL(c, dti, "%s has bad length (%d) %s property", node->fullpath, prop->val.len, prop->name); return 0; } @@ -379,7 +422,7 @@ static cell_t check_phandle_prop(struct check *c, struct dt_info *dti, /* "Set this node's phandle equal to some * other node's phandle". That's nonsensical * by construction. */ { - FAIL(c, "%s in %s is a reference to another node", + FAIL(c, dti, "%s in %s is a reference to another node", prop->name, node->fullpath); } /* But setting this node's phandle equal to its own @@ -393,7 +436,7 @@ static cell_t check_phandle_prop(struct check *c, struct dt_info *dti, phandle = propval_cell(prop); if ((phandle == 0) || (phandle == -1)) { - FAIL(c, "%s has bad value (0x%x) in %s property", + FAIL(c, dti, "%s has bad value (0x%x) in %s property", node->fullpath, phandle, prop->name); return 0; } @@ -420,7 +463,7 @@ static void check_explicit_phandles(struct check *c, struct dt_info *dti, return; if (linux_phandle && phandle && (phandle != linux_phandle)) - FAIL(c, "%s has mismatching 'phandle' and 'linux,phandle'" + FAIL(c, dti, "%s has mismatching 'phandle' and 'linux,phandle'" " properties", node->fullpath); if (linux_phandle && !phandle) @@ -428,7 +471,7 @@ static void check_explicit_phandles(struct check *c, struct dt_info *dti, other = get_node_by_phandle(root, phandle); if (other && (other != node)) { - FAIL(c, "%s has duplicated phandle 0x%x (seen before at %s)", + FAIL(c, dti, "%s has duplicated phandle 0x%x (seen before at %s)", node->fullpath, phandle, other->fullpath); return; } @@ -453,7 +496,7 @@ static void check_name_properties(struct check *c, struct dt_info *dti, if ((prop->val.len != node->basenamelen+1) || (memcmp(prop->val.val, node->name, node->basenamelen) != 0)) { - FAIL(c, "\"name\" property in %s is incorrect (\"%s\" instead" + FAIL(c, dti, "\"name\" property in %s is incorrect (\"%s\" instead" " of base node name)", node->fullpath, prop->val.val); } else { /* The name property is correct, and therefore redundant. @@ -488,16 +531,16 @@ static void fixup_phandle_references(struct check *c, struct dt_info *dti, refnode = get_node_by_ref(dt, m->ref); if (! refnode) { if (!(dti->dtsflags & DTSF_PLUGIN)) - FAIL(c, "Reference to non-existent node or " + FAIL(c, dti, "Reference to non-existent node or " "label \"%s\"\n", m->ref); else /* mark the entry as unresolved */ - *((cell_t *)(prop->val.val + m->offset)) = + *((fdt32_t *)(prop->val.val + m->offset)) = cpu_to_fdt32(0xffffffff); continue; } phandle = get_node_phandle(dt, refnode); - *((cell_t *)(prop->val.val + m->offset)) = cpu_to_fdt32(phandle); + *((fdt32_t *)(prop->val.val + m->offset)) = cpu_to_fdt32(phandle); } } } @@ -520,7 +563,7 @@ static void fixup_path_references(struct check *c, struct dt_info *dti, refnode = get_node_by_ref(dt, m->ref); if (!refnode) { - FAIL(c, "Reference to non-existent node or label \"%s\"\n", + FAIL(c, dti, "Reference to non-existent node or label \"%s\"\n", m->ref); continue; } @@ -579,19 +622,19 @@ static void check_reg_format(struct check *c, struct dt_info *dti, return; /* No "reg", that's fine */ if (!node->parent) { - FAIL(c, "Root node has a \"reg\" property"); + FAIL(c, dti, "Root node has a \"reg\" property"); return; } if (prop->val.len == 0) - FAIL(c, "\"reg\" property in %s is empty", node->fullpath); + FAIL(c, dti, "\"reg\" property in %s is empty", node->fullpath); addr_cells = node_addr_cells(node->parent); size_cells = node_size_cells(node->parent); entrylen = (addr_cells + size_cells) * sizeof(cell_t); if (!entrylen || (prop->val.len % entrylen) != 0) - FAIL(c, "\"reg\" property in %s has invalid length (%d bytes) " + FAIL(c, dti, "\"reg\" property in %s has invalid length (%d bytes) " "(#address-cells == %d, #size-cells == %d)", node->fullpath, prop->val.len, addr_cells, size_cells); } @@ -608,7 +651,7 @@ static void check_ranges_format(struct check *c, struct dt_info *dti, return; if (!node->parent) { - FAIL(c, "Root node has a \"ranges\" property"); + FAIL(c, dti, "Root node has a \"ranges\" property"); return; } @@ -620,17 +663,17 @@ static void check_ranges_format(struct check *c, struct dt_info *dti, if (prop->val.len == 0) { if (p_addr_cells != c_addr_cells) - FAIL(c, "%s has empty \"ranges\" property but its " + FAIL(c, dti, "%s has empty \"ranges\" property but its " "#address-cells (%d) differs from %s (%d)", node->fullpath, c_addr_cells, node->parent->fullpath, p_addr_cells); if (p_size_cells != c_size_cells) - FAIL(c, "%s has empty \"ranges\" property but its " + FAIL(c, dti, "%s has empty \"ranges\" property but its " "#size-cells (%d) differs from %s (%d)", node->fullpath, c_size_cells, node->parent->fullpath, p_size_cells); } else if ((prop->val.len % entrylen) != 0) { - FAIL(c, "\"ranges\" property in %s has invalid length (%d bytes) " + FAIL(c, dti, "\"ranges\" property in %s has invalid length (%d bytes) " "(parent #address-cells == %d, child #address-cells == %d, " "#size-cells == %d)", node->fullpath, prop->val.len, p_addr_cells, c_addr_cells, c_size_cells); @@ -638,6 +681,229 @@ static void check_ranges_format(struct check *c, struct dt_info *dti, } WARNING(ranges_format, check_ranges_format, NULL, &addr_size_cells); +static const struct bus_type pci_bus = { + .name = "PCI", +}; + +static void check_pci_bridge(struct check *c, struct dt_info *dti, struct node *node) +{ + struct property *prop; + cell_t *cells; + + prop = get_property(node, "device_type"); + if (!prop || !streq(prop->val.val, "pci")) + return; + + node->bus = &pci_bus; + + if (!strneq(node->name, "pci", node->basenamelen) && + !strneq(node->name, "pcie", node->basenamelen)) + FAIL(c, dti, "Node %s node name is not \"pci\" or \"pcie\"", + node->fullpath); + + prop = get_property(node, "ranges"); + if (!prop) + FAIL(c, dti, "Node %s missing ranges for PCI bridge (or not a bridge)", + node->fullpath); + + if (node_addr_cells(node) != 3) + FAIL(c, dti, "Node %s incorrect #address-cells for PCI bridge", + node->fullpath); + if (node_size_cells(node) != 2) + FAIL(c, dti, "Node %s incorrect #size-cells for PCI bridge", + node->fullpath); + + prop = get_property(node, "bus-range"); + if (!prop) { + FAIL(c, dti, "Node %s missing bus-range for PCI bridge", + node->fullpath); + return; + } + if (prop->val.len != (sizeof(cell_t) * 2)) { + FAIL(c, dti, "Node %s bus-range must be 2 cells", + node->fullpath); + return; + } + cells = (cell_t *)prop->val.val; + if (fdt32_to_cpu(cells[0]) > fdt32_to_cpu(cells[1])) + FAIL(c, dti, "Node %s bus-range 1st cell must be less than or equal to 2nd cell", + node->fullpath); + if (fdt32_to_cpu(cells[1]) > 0xff) + FAIL(c, dti, "Node %s bus-range maximum bus number must be less than 256", + node->fullpath); +} +WARNING(pci_bridge, check_pci_bridge, NULL, + &device_type_is_string, &addr_size_cells); + +static void check_pci_device_bus_num(struct check *c, struct dt_info *dti, struct node *node) +{ + struct property *prop; + unsigned int bus_num, min_bus, max_bus; + cell_t *cells; + + if (!node->parent || (node->parent->bus != &pci_bus)) + return; + + prop = get_property(node, "reg"); + if (!prop) + return; + + cells = (cell_t *)prop->val.val; + bus_num = (fdt32_to_cpu(cells[0]) & 0x00ff0000) >> 16; + + prop = get_property(node->parent, "bus-range"); + if (!prop) { + min_bus = max_bus = 0; + } else { + cells = (cell_t *)prop->val.val; + min_bus = fdt32_to_cpu(cells[0]); + max_bus = fdt32_to_cpu(cells[0]); + } + if ((bus_num < min_bus) || (bus_num > max_bus)) + FAIL(c, dti, "Node %s PCI bus number %d out of range, expected (%d - %d)", + node->fullpath, bus_num, min_bus, max_bus); +} +WARNING(pci_device_bus_num, check_pci_device_bus_num, NULL, ®_format, &pci_bridge); + +static void check_pci_device_reg(struct check *c, struct dt_info *dti, struct node *node) +{ + struct property *prop; + const char *unitname = get_unitname(node); + char unit_addr[5]; + unsigned int dev, func, reg; + cell_t *cells; + + if (!node->parent || (node->parent->bus != &pci_bus)) + return; + + prop = get_property(node, "reg"); + if (!prop) { + FAIL(c, dti, "Node %s missing PCI reg property", node->fullpath); + return; + } + + cells = (cell_t *)prop->val.val; + if (cells[1] || cells[2]) + FAIL(c, dti, "Node %s PCI reg config space address cells 2 and 3 must be 0", + node->fullpath); + + reg = fdt32_to_cpu(cells[0]); + dev = (reg & 0xf800) >> 11; + func = (reg & 0x700) >> 8; + + if (reg & 0xff000000) + FAIL(c, dti, "Node %s PCI reg address is not configuration space", + node->fullpath); + if (reg & 0x000000ff) + FAIL(c, dti, "Node %s PCI reg config space address register number must be 0", + node->fullpath); + + if (func == 0) { + snprintf(unit_addr, sizeof(unit_addr), "%x", dev); + if (streq(unitname, unit_addr)) + return; + } + + snprintf(unit_addr, sizeof(unit_addr), "%x,%x", dev, func); + if (streq(unitname, unit_addr)) + return; + + FAIL(c, dti, "Node %s PCI unit address format error, expected \"%s\"", + node->fullpath, unit_addr); +} +WARNING(pci_device_reg, check_pci_device_reg, NULL, ®_format, &pci_bridge); + +static const struct bus_type simple_bus = { + .name = "simple-bus", +}; + +static bool node_is_compatible(struct node *node, const char *compat) +{ + struct property *prop; + const char *str, *end; + + prop = get_property(node, "compatible"); + if (!prop) + return false; + + for (str = prop->val.val, end = str + prop->val.len; str < end; + str += strnlen(str, end - str) + 1) { + if (strneq(str, compat, end - str)) + return true; + } + return false; +} + +static void check_simple_bus_bridge(struct check *c, struct dt_info *dti, struct node *node) +{ + if (node_is_compatible(node, "simple-bus")) + node->bus = &simple_bus; +} +WARNING(simple_bus_bridge, check_simple_bus_bridge, NULL, &addr_size_cells); + +static void check_simple_bus_reg(struct check *c, struct dt_info *dti, struct node *node) +{ + struct property *prop; + const char *unitname = get_unitname(node); + char unit_addr[17]; + unsigned int size; + uint64_t reg = 0; + cell_t *cells = NULL; + + if (!node->parent || (node->parent->bus != &simple_bus)) + return; + + prop = get_property(node, "reg"); + if (prop) + cells = (cell_t *)prop->val.val; + else { + prop = get_property(node, "ranges"); + if (prop && prop->val.len) + /* skip of child address */ + cells = ((cell_t *)prop->val.val) + node_addr_cells(node); + } + + if (!cells) { + if (node->parent->parent && !(node->bus == &simple_bus)) + FAIL(c, dti, "Node %s missing or empty reg/ranges property", node->fullpath); + return; + } + + size = node_addr_cells(node->parent); + while (size--) + reg = (reg << 32) | fdt32_to_cpu(*(cells++)); + + snprintf(unit_addr, sizeof(unit_addr), "%lx", reg); + if (!streq(unitname, unit_addr)) + FAIL(c, dti, "Node %s simple-bus unit address format error, expected \"%s\"", + node->fullpath, unit_addr); +} +WARNING(simple_bus_reg, check_simple_bus_reg, NULL, ®_format, &simple_bus_bridge); + +static void check_unit_address_format(struct check *c, struct dt_info *dti, + struct node *node) +{ + const char *unitname = get_unitname(node); + + if (node->parent && node->parent->bus) + return; + + if (!unitname[0]) + return; + + if (!strncmp(unitname, "0x", 2)) { + FAIL(c, dti, "Node %s unit name should not have leading \"0x\"", + node->fullpath); + /* skip over 0x for next test */ + unitname += 2; + } + if (unitname[0] == '0' && isxdigit(unitname[1])) + FAIL(c, dti, "Node %s unit name should not have leading 0s", + node->fullpath); +} +WARNING(unit_address_format, check_unit_address_format, NULL, + &node_name_format, &pci_bridge, &simple_bus_bridge); + /* * Style checks */ @@ -656,11 +922,11 @@ static void check_avoid_default_addr_size(struct check *c, struct dt_info *dti, return; if (node->parent->addr_cells == -1) - FAIL(c, "Relying on default #address-cells value for %s", + FAIL(c, dti, "Relying on default #address-cells value for %s", node->fullpath); if (node->parent->size_cells == -1) - FAIL(c, "Relying on default #size-cells value for %s", + FAIL(c, dti, "Relying on default #size-cells value for %s", node->fullpath); } WARNING(avoid_default_addr_size, check_avoid_default_addr_size, NULL, @@ -684,7 +950,7 @@ static void check_obsolete_chosen_interrupt_controller(struct check *c, prop = get_property(chosen, "interrupt-controller"); if (prop) - FAIL(c, "/chosen has obsolete \"interrupt-controller\" " + FAIL(c, dti, "/chosen has obsolete \"interrupt-controller\" " "property"); } WARNING(obsolete_chosen_interrupt_controller, @@ -703,9 +969,20 @@ static struct check *check_table[] = { &address_cells_is_cell, &size_cells_is_cell, &interrupt_cells_is_cell, &device_type_is_string, &model_is_string, &status_is_string, + &property_name_chars_strict, + &node_name_chars_strict, + &addr_size_cells, ®_format, &ranges_format, &unit_address_vs_reg, + &unit_address_format, + + &pci_bridge, + &pci_device_reg, + &pci_device_bus_num, + + &simple_bus_bridge, + &simple_bus_reg, &avoid_default_addr_size, &obsolete_chosen_interrupt_controller, diff --git a/scripts/dtc/data.c b/scripts/dtc/data.c index 8cae23746882..aa37a16c8891 100644 --- a/scripts/dtc/data.c +++ b/scripts/dtc/data.c @@ -171,9 +171,9 @@ struct data data_merge(struct data d1, struct data d2) struct data data_append_integer(struct data d, uint64_t value, int bits) { uint8_t value_8; - uint16_t value_16; - uint32_t value_32; - uint64_t value_64; + fdt16_t value_16; + fdt32_t value_32; + fdt64_t value_64; switch (bits) { case 8: @@ -197,14 +197,14 @@ struct data data_append_integer(struct data d, uint64_t value, int bits) } } -struct data data_append_re(struct data d, const struct fdt_reserve_entry *re) +struct data data_append_re(struct data d, uint64_t address, uint64_t size) { - struct fdt_reserve_entry bere; + struct fdt_reserve_entry re; - bere.address = cpu_to_fdt64(re->address); - bere.size = cpu_to_fdt64(re->size); + re.address = cpu_to_fdt64(address); + re.size = cpu_to_fdt64(size); - return data_append_data(d, &bere, sizeof(bere)); + return data_append_data(d, &re, sizeof(re)); } struct data data_append_cell(struct data d, cell_t word) diff --git a/scripts/dtc/dtc-lexer.l b/scripts/dtc/dtc-lexer.l index c600603044f3..fd825ebba69c 100644 --- a/scripts/dtc/dtc-lexer.l +++ b/scripts/dtc/dtc-lexer.l @@ -62,7 +62,8 @@ static int dts_version = 1; static void push_input_file(const char *filename); static bool pop_input_file(void); -static void lexical_error(const char *fmt, ...); +static void PRINTF(1, 2) lexical_error(const char *fmt, ...); + %} %% diff --git a/scripts/dtc/dtc-lexer.lex.c_shipped b/scripts/dtc/dtc-lexer.lex.c_shipped index 2c862bc86ad0..64c243772398 100644 --- a/scripts/dtc/dtc-lexer.lex.c_shipped +++ b/scripts/dtc/dtc-lexer.lex.c_shipped @@ -655,8 +655,9 @@ static int dts_version = 1; static void push_input_file(const char *filename); static bool pop_input_file(void); -static void lexical_error(const char *fmt, ...); -#line 660 "dtc-lexer.lex.c" +static void PRINTF(1, 2) lexical_error(const char *fmt, ...); + +#line 661 "dtc-lexer.lex.c" #define INITIAL 0 #define BYTESTRING 1 @@ -878,9 +879,9 @@ YY_DECL } { -#line 68 "dtc-lexer.l" +#line 69 "dtc-lexer.l" -#line 884 "dtc-lexer.lex.c" +#line 885 "dtc-lexer.lex.c" while ( /*CONSTCOND*/1 ) /* loops until end-of-file is reached */ { @@ -937,7 +938,7 @@ do_action: /* This label is used only to access EOF actions. */ case 1: /* rule 1 can match eol */ YY_RULE_SETUP -#line 69 "dtc-lexer.l" +#line 70 "dtc-lexer.l" { char *name = strchr(yytext, '\"') + 1; yytext[yyleng-1] = '\0'; @@ -947,7 +948,7 @@ YY_RULE_SETUP case 2: /* rule 2 can match eol */ YY_RULE_SETUP -#line 75 "dtc-lexer.l" +#line 76 "dtc-lexer.l" { char *line, *fnstart, *fnend; struct data fn; @@ -981,7 +982,7 @@ case YY_STATE_EOF(INITIAL): case YY_STATE_EOF(BYTESTRING): case YY_STATE_EOF(PROPNODENAME): case YY_STATE_EOF(V1): -#line 104 "dtc-lexer.l" +#line 105 "dtc-lexer.l" { if (!pop_input_file()) { yyterminate(); @@ -991,7 +992,7 @@ case YY_STATE_EOF(V1): case 3: /* rule 3 can match eol */ YY_RULE_SETUP -#line 110 "dtc-lexer.l" +#line 111 "dtc-lexer.l" { DPRINT("String: %s\n", yytext); yylval.data = data_copy_escape_string(yytext+1, @@ -1001,7 +1002,7 @@ YY_RULE_SETUP YY_BREAK case 4: YY_RULE_SETUP -#line 117 "dtc-lexer.l" +#line 118 "dtc-lexer.l" { DPRINT("Keyword: /dts-v1/\n"); dts_version = 1; @@ -1011,7 +1012,7 @@ YY_RULE_SETUP YY_BREAK case 5: YY_RULE_SETUP -#line 124 "dtc-lexer.l" +#line 125 "dtc-lexer.l" { DPRINT("Keyword: /plugin/\n"); return DT_PLUGIN; @@ -1019,7 +1020,7 @@ YY_RULE_SETUP YY_BREAK case 6: YY_RULE_SETUP -#line 129 "dtc-lexer.l" +#line 130 "dtc-lexer.l" { DPRINT("Keyword: /memreserve/\n"); BEGIN_DEFAULT(); @@ -1028,7 +1029,7 @@ YY_RULE_SETUP YY_BREAK case 7: YY_RULE_SETUP -#line 135 "dtc-lexer.l" +#line 136 "dtc-lexer.l" { DPRINT("Keyword: /bits/\n"); BEGIN_DEFAULT(); @@ -1037,7 +1038,7 @@ YY_RULE_SETUP YY_BREAK case 8: YY_RULE_SETUP -#line 141 "dtc-lexer.l" +#line 142 "dtc-lexer.l" { DPRINT("Keyword: /delete-property/\n"); DPRINT("\n"); @@ -1047,7 +1048,7 @@ YY_RULE_SETUP YY_BREAK case 9: YY_RULE_SETUP -#line 148 "dtc-lexer.l" +#line 149 "dtc-lexer.l" { DPRINT("Keyword: /delete-node/\n"); DPRINT("\n"); @@ -1057,7 +1058,7 @@ YY_RULE_SETUP YY_BREAK case 10: YY_RULE_SETUP -#line 155 "dtc-lexer.l" +#line 156 "dtc-lexer.l" { DPRINT("Label: %s\n", yytext); yylval.labelref = xstrdup(yytext); @@ -1067,7 +1068,7 @@ YY_RULE_SETUP YY_BREAK case 11: YY_RULE_SETUP -#line 162 "dtc-lexer.l" +#line 163 "dtc-lexer.l" { char *e; DPRINT("Integer Literal: '%s'\n", yytext); @@ -1093,7 +1094,7 @@ YY_RULE_SETUP case 12: /* rule 12 can match eol */ YY_RULE_SETUP -#line 184 "dtc-lexer.l" +#line 185 "dtc-lexer.l" { struct data d; DPRINT("Character literal: %s\n", yytext); @@ -1117,7 +1118,7 @@ YY_RULE_SETUP YY_BREAK case 13: YY_RULE_SETUP -#line 205 "dtc-lexer.l" +#line 206 "dtc-lexer.l" { /* label reference */ DPRINT("Ref: %s\n", yytext+1); yylval.labelref = xstrdup(yytext+1); @@ -1126,7 +1127,7 @@ YY_RULE_SETUP YY_BREAK case 14: YY_RULE_SETUP -#line 211 "dtc-lexer.l" +#line 212 "dtc-lexer.l" { /* new-style path reference */ yytext[yyleng-1] = '\0'; DPRINT("Ref: %s\n", yytext+2); @@ -1136,7 +1137,7 @@ YY_RULE_SETUP YY_BREAK case 15: YY_RULE_SETUP -#line 218 "dtc-lexer.l" +#line 219 "dtc-lexer.l" { yylval.byte = strtol(yytext, NULL, 16); DPRINT("Byte: %02x\n", (int)yylval.byte); @@ -1145,7 +1146,7 @@ YY_RULE_SETUP YY_BREAK case 16: YY_RULE_SETUP -#line 224 "dtc-lexer.l" +#line 225 "dtc-lexer.l" { DPRINT("/BYTESTRING\n"); BEGIN_DEFAULT(); @@ -1154,7 +1155,7 @@ YY_RULE_SETUP YY_BREAK case 17: YY_RULE_SETUP -#line 230 "dtc-lexer.l" +#line 231 "dtc-lexer.l" { DPRINT("PropNodeName: %s\n", yytext); yylval.propnodename = xstrdup((yytext[0] == '\\') ? @@ -1165,7 +1166,7 @@ YY_RULE_SETUP YY_BREAK case 18: YY_RULE_SETUP -#line 238 "dtc-lexer.l" +#line 239 "dtc-lexer.l" { DPRINT("Binary Include\n"); return DT_INCBIN; @@ -1174,64 +1175,64 @@ YY_RULE_SETUP case 19: /* rule 19 can match eol */ YY_RULE_SETUP -#line 243 "dtc-lexer.l" +#line 244 "dtc-lexer.l" /* eat whitespace */ YY_BREAK case 20: /* rule 20 can match eol */ YY_RULE_SETUP -#line 244 "dtc-lexer.l" +#line 245 "dtc-lexer.l" /* eat C-style comments */ YY_BREAK case 21: /* rule 21 can match eol */ YY_RULE_SETUP -#line 245 "dtc-lexer.l" +#line 246 "dtc-lexer.l" /* eat C++-style comments */ YY_BREAK case 22: YY_RULE_SETUP -#line 247 "dtc-lexer.l" +#line 248 "dtc-lexer.l" { return DT_LSHIFT; }; YY_BREAK case 23: YY_RULE_SETUP -#line 248 "dtc-lexer.l" +#line 249 "dtc-lexer.l" { return DT_RSHIFT; }; YY_BREAK case 24: YY_RULE_SETUP -#line 249 "dtc-lexer.l" +#line 250 "dtc-lexer.l" { return DT_LE; }; YY_BREAK case 25: YY_RULE_SETUP -#line 250 "dtc-lexer.l" +#line 251 "dtc-lexer.l" { return DT_GE; }; YY_BREAK case 26: YY_RULE_SETUP -#line 251 "dtc-lexer.l" +#line 252 "dtc-lexer.l" { return DT_EQ; }; YY_BREAK case 27: YY_RULE_SETUP -#line 252 "dtc-lexer.l" +#line 253 "dtc-lexer.l" { return DT_NE; }; YY_BREAK case 28: YY_RULE_SETUP -#line 253 "dtc-lexer.l" +#line 254 "dtc-lexer.l" { return DT_AND; }; YY_BREAK case 29: YY_RULE_SETUP -#line 254 "dtc-lexer.l" +#line 255 "dtc-lexer.l" { return DT_OR; }; YY_BREAK case 30: YY_RULE_SETUP -#line 256 "dtc-lexer.l" +#line 257 "dtc-lexer.l" { DPRINT("Char: %c (\\x%02x)\n", yytext[0], (unsigned)yytext[0]); @@ -1249,10 +1250,10 @@ YY_RULE_SETUP YY_BREAK case 31: YY_RULE_SETUP -#line 271 "dtc-lexer.l" +#line 272 "dtc-lexer.l" ECHO; YY_BREAK -#line 1256 "dtc-lexer.lex.c" +#line 1257 "dtc-lexer.lex.c" case YY_END_OF_BUFFER: { @@ -2218,7 +2219,7 @@ void yyfree (void * ptr ) #define YYTABLES_NAME "yytables" -#line 271 "dtc-lexer.l" +#line 272 "dtc-lexer.l" diff --git a/scripts/dtc/dtc-parser.tab.c_shipped b/scripts/dtc/dtc-parser.tab.c_shipped index 2965227a1b4a..0a7a5ed86f04 100644 --- a/scripts/dtc/dtc-parser.tab.c_shipped +++ b/scripts/dtc/dtc-parser.tab.c_shipped @@ -1557,10 +1557,10 @@ yyreduce: { struct node *target = get_node_by_ref((yyvsp[-3].node), (yyvsp[-1].labelref)); - add_label(&target->labels, (yyvsp[-2].labelref)); - if (target) + if (target) { + add_label(&target->labels, (yyvsp[-2].labelref)); merge_nodes(target, (yyvsp[0].node)); - else + } else ERROR(&(yylsp[-1]), "Label or path %s not found", (yyvsp[-1].labelref)); (yyval.node) = (yyvsp[-3].node); } diff --git a/scripts/dtc/dtc-parser.y b/scripts/dtc/dtc-parser.y index b2fd4d155839..ca3f5003427c 100644 --- a/scripts/dtc/dtc-parser.y +++ b/scripts/dtc/dtc-parser.y @@ -171,10 +171,10 @@ devicetree: { struct node *target = get_node_by_ref($1, $3); - add_label(&target->labels, $2); - if (target) + if (target) { + add_label(&target->labels, $2); merge_nodes(target, $4); - else + } else ERROR(&@3, "Label or path %s not found", $3); $$ = $1; } diff --git a/scripts/dtc/dtc.c b/scripts/dtc/dtc.c index a4edf4c7aebf..f5eed9d72c02 100644 --- a/scripts/dtc/dtc.c +++ b/scripts/dtc/dtc.c @@ -138,7 +138,7 @@ static const char *guess_type_by_name(const char *fname, const char *fallback) static const char *guess_input_format(const char *fname, const char *fallback) { struct stat statbuf; - uint32_t magic; + fdt32_t magic; FILE *f; if (stat(fname, &statbuf) != 0) @@ -159,8 +159,7 @@ static const char *guess_input_format(const char *fname, const char *fallback) } fclose(f); - magic = fdt32_to_cpu(magic); - if (magic == FDT_MAGIC) + if (fdt32_to_cpu(magic) == FDT_MAGIC) return "dtb"; return guess_type_by_name(fname, fallback); @@ -216,7 +215,7 @@ int main(int argc, char *argv[]) alignsize = strtol(optarg, NULL, 0); if (!is_power_of_2(alignsize)) die("Invalid argument \"%d\" to -a option\n", - optarg); + alignsize); break; case 'f': force = true; @@ -309,6 +308,8 @@ int main(int argc, char *argv[]) else die("Unknown input format \"%s\"\n", inform); + dti->outname = outname; + if (depfile) { fputc('\n', depfile); fclose(depfile); diff --git a/scripts/dtc/dtc.h b/scripts/dtc/dtc.h index c6f125c68ba8..fc24e17510fd 100644 --- a/scripts/dtc/dtc.h +++ b/scripts/dtc/dtc.h @@ -43,7 +43,6 @@ #define debug(...) #endif - #define DEFAULT_FDT_VERSION 17 /* @@ -114,7 +113,7 @@ struct data data_insert_at_marker(struct data d, struct marker *m, struct data data_merge(struct data d1, struct data d2); struct data data_append_cell(struct data d, cell_t word); struct data data_append_integer(struct data d, uint64_t word, int bits); -struct data data_append_re(struct data d, const struct fdt_reserve_entry *re); +struct data data_append_re(struct data d, uint64_t address, uint64_t size); struct data data_append_addr(struct data d, uint64_t addr); struct data data_append_byte(struct data d, uint8_t byte); struct data data_append_zeroes(struct data d, int len); @@ -136,6 +135,10 @@ struct label { struct label *next; }; +struct bus_type { + const char *name; +}; + struct property { bool deleted; char *name; @@ -162,6 +165,7 @@ struct node { int addr_cells, size_cells; struct label *labels; + const struct bus_type *bus; }; #define for_each_label_withdel(l0, l) \ @@ -227,7 +231,7 @@ uint32_t guess_boot_cpuid(struct node *tree); /* Boot info (tree plus memreserve information */ struct reserve_info { - struct fdt_reserve_entry re; + uint64_t address, size; struct reserve_info *next; @@ -246,6 +250,7 @@ struct dt_info { struct reserve_info *reservelist; uint32_t boot_cpuid_phys; struct node *dt; /* the device tree */ + const char *outname; /* filename being written to, "-" for stdout */ }; /* DTS version flags definitions */ diff --git a/scripts/dtc/flattree.c b/scripts/dtc/flattree.c index ebac548b3fa8..fcf71541d8a7 100644 --- a/scripts/dtc/flattree.c +++ b/scripts/dtc/flattree.c @@ -49,7 +49,7 @@ static struct version_info { struct emitter { void (*cell)(void *, cell_t); - void (*string)(void *, char *, int); + void (*string)(void *, const char *, int); void (*align)(void *, int); void (*data)(void *, struct data); void (*beginnode)(void *, struct label *labels); @@ -64,7 +64,7 @@ static void bin_emit_cell(void *e, cell_t val) *dtbuf = data_append_cell(*dtbuf, val); } -static void bin_emit_string(void *e, char *str, int len) +static void bin_emit_string(void *e, const char *str, int len) { struct data *dtbuf = e; @@ -144,22 +144,14 @@ static void asm_emit_cell(void *e, cell_t val) (val >> 8) & 0xff, val & 0xff); } -static void asm_emit_string(void *e, char *str, int len) +static void asm_emit_string(void *e, const char *str, int len) { FILE *f = e; - char c = 0; - if (len != 0) { - /* XXX: ewww */ - c = str[len]; - str[len] = '\0'; - } - - fprintf(f, "\t.string\t\"%s\"\n", str); - - if (len != 0) { - str[len] = c; - } + if (len != 0) + fprintf(f, "\t.string\t\"%.*s\"\n", len, str); + else + fprintf(f, "\t.string\t\"%s\"\n", str); } static void asm_emit_align(void *e, int a) @@ -179,7 +171,7 @@ static void asm_emit_data(void *e, struct data d) emit_offset_label(f, m->ref, m->offset); while ((d.len - off) >= sizeof(uint32_t)) { - asm_emit_cell(e, fdt32_to_cpu(*((uint32_t *)(d.val+off)))); + asm_emit_cell(e, fdt32_to_cpu(*((fdt32_t *)(d.val+off)))); off += sizeof(uint32_t); } @@ -318,17 +310,16 @@ static struct data flatten_reserve_list(struct reserve_info *reservelist, { struct reserve_info *re; struct data d = empty_data; - static struct fdt_reserve_entry null_re = {0,0}; int j; for (re = reservelist; re; re = re->next) { - d = data_append_re(d, &re->re); + d = data_append_re(d, re->address, re->size); } /* * Add additional reserved slots if the user asked for them. */ for (j = 0; j < reservenum; j++) { - d = data_append_re(d, &null_re); + d = data_append_re(d, 0, 0); } return d; @@ -544,11 +535,11 @@ void dt_to_asm(FILE *f, struct dt_info *dti, int version) fprintf(f, "\t.globl\t%s\n", l->label); fprintf(f, "%s:\n", l->label); } - ASM_EMIT_BELONG(f, "0x%08x", (unsigned int)(re->re.address >> 32)); + ASM_EMIT_BELONG(f, "0x%08x", (unsigned int)(re->address >> 32)); ASM_EMIT_BELONG(f, "0x%08x", - (unsigned int)(re->re.address & 0xffffffff)); - ASM_EMIT_BELONG(f, "0x%08x", (unsigned int)(re->re.size >> 32)); - ASM_EMIT_BELONG(f, "0x%08x", (unsigned int)(re->re.size & 0xffffffff)); + (unsigned int)(re->address & 0xffffffff)); + ASM_EMIT_BELONG(f, "0x%08x", (unsigned int)(re->size >> 32)); + ASM_EMIT_BELONG(f, "0x%08x", (unsigned int)(re->size & 0xffffffff)); } for (i = 0; i < reservenum; i++) { fprintf(f, "\t.long\t0, 0\n\t.long\t0, 0\n"); @@ -609,7 +600,7 @@ static void flat_read_chunk(struct inbuf *inb, void *p, int len) static uint32_t flat_read_word(struct inbuf *inb) { - uint32_t val; + fdt32_t val; assert(((inb->ptr - inb->base) % sizeof(val)) == 0); @@ -718,13 +709,15 @@ static struct reserve_info *flat_read_mem_reserve(struct inbuf *inb) * First pass, count entries. */ while (1) { + uint64_t address, size; + flat_read_chunk(inb, &re, sizeof(re)); - re.address = fdt64_to_cpu(re.address); - re.size = fdt64_to_cpu(re.size); - if (re.size == 0) + address = fdt64_to_cpu(re.address); + size = fdt64_to_cpu(re.size); + if (size == 0) break; - new = build_reserve_entry(re.address, re.size); + new = build_reserve_entry(address, size); reservelist = add_reserve_entry(reservelist, new); } @@ -817,6 +810,7 @@ static struct node *unflatten_tree(struct inbuf *dtbuf, struct dt_info *dt_from_blob(const char *fname) { FILE *f; + fdt32_t magic_buf, totalsize_buf; uint32_t magic, totalsize, version, size_dt, boot_cpuid_phys; uint32_t off_dt, off_str, off_mem_rsvmap; int rc; @@ -833,7 +827,7 @@ struct dt_info *dt_from_blob(const char *fname) f = srcfile_relative_open(fname, NULL); - rc = fread(&magic, sizeof(magic), 1, f); + rc = fread(&magic_buf, sizeof(magic_buf), 1, f); if (ferror(f)) die("Error reading DT blob magic number: %s\n", strerror(errno)); @@ -844,11 +838,11 @@ struct dt_info *dt_from_blob(const char *fname) die("Mysterious short read reading magic number\n"); } - magic = fdt32_to_cpu(magic); + magic = fdt32_to_cpu(magic_buf); if (magic != FDT_MAGIC) die("Blob has incorrect magic number\n"); - rc = fread(&totalsize, sizeof(totalsize), 1, f); + rc = fread(&totalsize_buf, sizeof(totalsize_buf), 1, f); if (ferror(f)) die("Error reading DT blob size: %s\n", strerror(errno)); if (rc < 1) { @@ -858,7 +852,7 @@ struct dt_info *dt_from_blob(const char *fname) die("Mysterious short read reading blob size\n"); } - totalsize = fdt32_to_cpu(totalsize); + totalsize = fdt32_to_cpu(totalsize_buf); if (totalsize < FDT_V1_SIZE) die("DT blob size (%d) is too small\n", totalsize); diff --git a/scripts/dtc/libfdt/fdt_rw.c b/scripts/dtc/libfdt/fdt_rw.c index 2eed4f58387c..3fd5847377c9 100644 --- a/scripts/dtc/libfdt/fdt_rw.c +++ b/scripts/dtc/libfdt/fdt_rw.c @@ -283,7 +283,8 @@ int fdt_setprop(void *fdt, int nodeoffset, const char *name, if (err) return err; - memcpy(prop->data, val, len); + if (len) + memcpy(prop->data, val, len); return 0; } diff --git a/scripts/dtc/libfdt/libfdt.h b/scripts/dtc/libfdt/libfdt.h index b842b156fa17..ba86caa73d01 100644 --- a/scripts/dtc/libfdt/libfdt.h +++ b/scripts/dtc/libfdt/libfdt.h @@ -143,7 +143,9 @@ /* Low-level functions (you probably don't need these) */ /**********************************************************************/ +#ifndef SWIG /* This function is not useful in Python */ const void *fdt_offset_ptr(const void *fdt, int offset, unsigned int checklen); +#endif static inline void *fdt_offset_ptr_w(void *fdt, int offset, int checklen) { return (void *)(uintptr_t)fdt_offset_ptr(fdt, offset, checklen); @@ -210,7 +212,6 @@ int fdt_next_subnode(const void *fdt, int offset); /**********************************************************************/ /* General functions */ /**********************************************************************/ - #define fdt_get_header(fdt, field) \ (fdt32_to_cpu(((const struct fdt_header *)(fdt))->field)) #define fdt_magic(fdt) (fdt_get_header(fdt, magic)) @@ -354,8 +355,10 @@ int fdt_get_mem_rsv(const void *fdt, int n, uint64_t *address, uint64_t *size); * useful for finding subnodes based on a portion of a larger string, * such as a full path. */ +#ifndef SWIG /* Not available in Python */ int fdt_subnode_offset_namelen(const void *fdt, int parentoffset, const char *name, int namelen); +#endif /** * fdt_subnode_offset - find a subnode of a given node * @fdt: pointer to the device tree blob @@ -391,7 +394,9 @@ int fdt_subnode_offset(const void *fdt, int parentoffset, const char *name); * Identical to fdt_path_offset(), but only consider the first namelen * characters of path as the path name. */ +#ifndef SWIG /* Not available in Python */ int fdt_path_offset_namelen(const void *fdt, const char *path, int namelen); +#endif /** * fdt_path_offset - find a tree node by its full path @@ -550,10 +555,12 @@ const struct fdt_property *fdt_get_property_by_offset(const void *fdt, * Identical to fdt_get_property(), but only examine the first namelen * characters of name for matching the property name. */ +#ifndef SWIG /* Not available in Python */ const struct fdt_property *fdt_get_property_namelen(const void *fdt, int nodeoffset, const char *name, int namelen, int *lenp); +#endif /** * fdt_get_property - find a given property in a given node @@ -624,8 +631,10 @@ static inline struct fdt_property *fdt_get_property_w(void *fdt, int nodeoffset, * -FDT_ERR_BADSTRUCTURE, * -FDT_ERR_TRUNCATED, standard meanings */ +#ifndef SWIG /* This function is not useful in Python */ const void *fdt_getprop_by_offset(const void *fdt, int offset, const char **namep, int *lenp); +#endif /** * fdt_getprop_namelen - get property value based on substring @@ -638,6 +647,7 @@ const void *fdt_getprop_by_offset(const void *fdt, int offset, * Identical to fdt_getprop(), but only examine the first namelen * characters of name for matching the property name. */ +#ifndef SWIG /* Not available in Python */ const void *fdt_getprop_namelen(const void *fdt, int nodeoffset, const char *name, int namelen, int *lenp); static inline void *fdt_getprop_namelen_w(void *fdt, int nodeoffset, @@ -647,6 +657,7 @@ static inline void *fdt_getprop_namelen_w(void *fdt, int nodeoffset, return (void *)(uintptr_t)fdt_getprop_namelen(fdt, nodeoffset, name, namelen, lenp); } +#endif /** * fdt_getprop - retrieve the value of a given property @@ -707,8 +718,10 @@ uint32_t fdt_get_phandle(const void *fdt, int nodeoffset); * Identical to fdt_get_alias(), but only examine the first namelen * characters of name for matching the alias name. */ +#ifndef SWIG /* Not available in Python */ const char *fdt_get_alias_namelen(const void *fdt, const char *name, int namelen); +#endif /** * fdt_get_alias - retrieve the path referenced by a given alias @@ -1106,10 +1119,12 @@ int fdt_size_cells(const void *fdt, int nodeoffset); * of the name. It is useful when you want to manipulate only one value of * an array and you have a string that doesn't end with \0. */ +#ifndef SWIG /* Not available in Python */ int fdt_setprop_inplace_namelen_partial(void *fdt, int nodeoffset, const char *name, int namelen, uint32_t idx, const void *val, int len); +#endif /** * fdt_setprop_inplace - change a property's value, but not its size @@ -1139,8 +1154,10 @@ int fdt_setprop_inplace_namelen_partial(void *fdt, int nodeoffset, * -FDT_ERR_BADSTRUCTURE, * -FDT_ERR_TRUNCATED, standard meanings */ +#ifndef SWIG /* Not available in Python */ int fdt_setprop_inplace(void *fdt, int nodeoffset, const char *name, const void *val, int len); +#endif /** * fdt_setprop_inplace_u32 - change the value of a 32-bit integer property @@ -1527,6 +1544,36 @@ static inline int fdt_setprop_cell(void *fdt, int nodeoffset, const char *name, #define fdt_setprop_string(fdt, nodeoffset, name, str) \ fdt_setprop((fdt), (nodeoffset), (name), (str), strlen(str)+1) + +/** + * fdt_setprop_empty - set a property to an empty value + * @fdt: pointer to the device tree blob + * @nodeoffset: offset of the node whose property to change + * @name: name of the property to change + * + * fdt_setprop_empty() sets the value of the named property in the + * given node to an empty (zero length) value, or creates a new empty + * property if it does not already exist. + * + * This function may insert or delete data from the blob, and will + * therefore change the offsets of some existing nodes. + * + * returns: + * 0, on success + * -FDT_ERR_NOSPACE, there is insufficient free space in the blob to + * contain the new property value + * -FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag + * -FDT_ERR_BADLAYOUT, + * -FDT_ERR_BADMAGIC, + * -FDT_ERR_BADVERSION, + * -FDT_ERR_BADSTATE, + * -FDT_ERR_BADSTRUCTURE, + * -FDT_ERR_BADLAYOUT, + * -FDT_ERR_TRUNCATED, standard meanings + */ +#define fdt_setprop_empty(fdt, nodeoffset, name) \ + fdt_setprop((fdt), (nodeoffset), (name), NULL, 0) + /** * fdt_appendprop - append to or create a property * @fdt: pointer to the device tree blob @@ -1704,8 +1751,10 @@ int fdt_delprop(void *fdt, int nodeoffset, const char *name); * creating subnodes based on a portion of a larger string, such as a * full path. */ +#ifndef SWIG /* Not available in Python */ int fdt_add_subnode_namelen(void *fdt, int parentoffset, const char *name, int namelen); +#endif /** * fdt_add_subnode - creates a new node diff --git a/scripts/dtc/libfdt/libfdt_env.h b/scripts/dtc/libfdt/libfdt_env.h index 99f936dacc60..952056cddf09 100644 --- a/scripts/dtc/libfdt/libfdt_env.h +++ b/scripts/dtc/libfdt/libfdt_env.h @@ -58,16 +58,16 @@ #include #ifdef __CHECKER__ -#define __force __attribute__((force)) -#define __bitwise __attribute__((bitwise)) +#define FDT_FORCE __attribute__((force)) +#define FDT_BITWISE __attribute__((bitwise)) #else -#define __force -#define __bitwise +#define FDT_FORCE +#define FDT_BITWISE #endif -typedef uint16_t __bitwise fdt16_t; -typedef uint32_t __bitwise fdt32_t; -typedef uint64_t __bitwise fdt64_t; +typedef uint16_t FDT_BITWISE fdt16_t; +typedef uint32_t FDT_BITWISE fdt32_t; +typedef uint64_t FDT_BITWISE fdt64_t; #define EXTRACT_BYTE(x, n) ((unsigned long long)((uint8_t *)&x)[n]) #define CPU_TO_FDT16(x) ((EXTRACT_BYTE(x, 0) << 8) | EXTRACT_BYTE(x, 1)) @@ -80,29 +80,29 @@ typedef uint64_t __bitwise fdt64_t; static inline uint16_t fdt16_to_cpu(fdt16_t x) { - return (__force uint16_t)CPU_TO_FDT16(x); + return (FDT_FORCE uint16_t)CPU_TO_FDT16(x); } static inline fdt16_t cpu_to_fdt16(uint16_t x) { - return (__force fdt16_t)CPU_TO_FDT16(x); + return (FDT_FORCE fdt16_t)CPU_TO_FDT16(x); } static inline uint32_t fdt32_to_cpu(fdt32_t x) { - return (__force uint32_t)CPU_TO_FDT32(x); + return (FDT_FORCE uint32_t)CPU_TO_FDT32(x); } static inline fdt32_t cpu_to_fdt32(uint32_t x) { - return (__force fdt32_t)CPU_TO_FDT32(x); + return (FDT_FORCE fdt32_t)CPU_TO_FDT32(x); } static inline uint64_t fdt64_to_cpu(fdt64_t x) { - return (__force uint64_t)CPU_TO_FDT64(x); + return (FDT_FORCE uint64_t)CPU_TO_FDT64(x); } static inline fdt64_t cpu_to_fdt64(uint64_t x) { - return (__force fdt64_t)CPU_TO_FDT64(x); + return (FDT_FORCE fdt64_t)CPU_TO_FDT64(x); } #undef CPU_TO_FDT64 #undef CPU_TO_FDT32 diff --git a/scripts/dtc/livetree.c b/scripts/dtc/livetree.c index afa2f67b142a..3673de07e4e5 100644 --- a/scripts/dtc/livetree.c +++ b/scripts/dtc/livetree.c @@ -242,7 +242,7 @@ void delete_property_by_name(struct node *node, char *name) struct property *prop = node->proplist; while (prop) { - if (!strcmp(prop->name, name)) { + if (streq(prop->name, name)) { delete_property(prop); return; } @@ -275,7 +275,7 @@ void delete_node_by_name(struct node *parent, char *name) struct node *node = parent->children; while (node) { - if (!strcmp(node->name, name)) { + if (streq(node->name, name)) { delete_node(node); return; } @@ -319,8 +319,8 @@ struct reserve_info *build_reserve_entry(uint64_t address, uint64_t size) memset(new, 0, sizeof(*new)); - new->re.address = address; - new->re.size = size; + new->address = address; + new->size = size; return new; } @@ -393,7 +393,7 @@ struct property *get_property(struct node *node, const char *propname) cell_t propval_cell(struct property *prop) { assert(prop->val.len == sizeof(cell_t)); - return fdt32_to_cpu(*((cell_t *)prop->val.val)); + return fdt32_to_cpu(*((fdt32_t *)prop->val.val)); } struct property *get_property_by_label(struct node *tree, const char *label, @@ -599,13 +599,13 @@ static int cmp_reserve_info(const void *ax, const void *bx) a = *((const struct reserve_info * const *)ax); b = *((const struct reserve_info * const *)bx); - if (a->re.address < b->re.address) + if (a->address < b->address) return -1; - else if (a->re.address > b->re.address) + else if (a->address > b->address) return 1; - else if (a->re.size < b->re.size) + else if (a->size < b->size) return -1; - else if (a->re.size > b->re.size) + else if (a->size > b->size) return 1; else return 0; @@ -847,6 +847,8 @@ static void add_fixup_entry(struct dt_info *dti, struct node *fn, xasprintf(&entry, "%s:%s:%u", node->fullpath, prop->name, m->offset); append_to_property(fn, m->ref, entry, strlen(entry) + 1); + + free(entry); } static void generate_fixups_tree_internal(struct dt_info *dti, @@ -900,7 +902,7 @@ static void add_local_fixup_entry(struct dt_info *dti, struct node *refnode) { struct node *wn, *nwn; /* local fixup node, walk node, new */ - uint32_t value_32; + fdt32_t value_32; char **compp; int i, depth; diff --git a/scripts/dtc/srcpos.c b/scripts/dtc/srcpos.c index aa3aad04cec4..9d38459902f3 100644 --- a/scripts/dtc/srcpos.c +++ b/scripts/dtc/srcpos.c @@ -252,7 +252,7 @@ srcpos_string(struct srcpos *pos) const char *fname = ""; char *pos_str; - if (pos) + if (pos->file && pos->file->name) fname = pos->file->name; diff --git a/scripts/dtc/srcpos.h b/scripts/dtc/srcpos.h index 2cdfcd82e95e..7caca8257c6d 100644 --- a/scripts/dtc/srcpos.h +++ b/scripts/dtc/srcpos.h @@ -22,6 +22,7 @@ #include #include +#include "util.h" struct srcfile_state { FILE *f; @@ -106,12 +107,10 @@ extern void srcpos_update(struct srcpos *pos, const char *text, int len); extern struct srcpos *srcpos_copy(struct srcpos *pos); extern char *srcpos_string(struct srcpos *pos); -extern void srcpos_verror(struct srcpos *pos, const char *prefix, - const char *fmt, va_list va) - __attribute__((format(printf, 3, 0))); -extern void srcpos_error(struct srcpos *pos, const char *prefix, - const char *fmt, ...) - __attribute__((format(printf, 3, 4))); +extern void PRINTF(3, 0) srcpos_verror(struct srcpos *pos, const char *prefix, + const char *fmt, va_list va); +extern void PRINTF(3, 4) srcpos_error(struct srcpos *pos, const char *prefix, + const char *fmt, ...); extern void srcpos_set_line(char *f, int l); diff --git a/scripts/dtc/treesource.c b/scripts/dtc/treesource.c index c9d8967969f9..2461a3d068a0 100644 --- a/scripts/dtc/treesource.c +++ b/scripts/dtc/treesource.c @@ -137,7 +137,7 @@ static void write_propval_string(FILE *f, struct data val) static void write_propval_cells(FILE *f, struct data val) { void *propend = val.val + val.len; - cell_t *cp = (cell_t *)val.val; + fdt32_t *cp = (fdt32_t *)val.val; struct marker *m = val.markers; fprintf(f, "<"); @@ -275,8 +275,8 @@ void dt_to_source(FILE *f, struct dt_info *dti) for_each_label(re->labels, l) fprintf(f, "%s: ", l->label); fprintf(f, "/memreserve/\t0x%016llx 0x%016llx;\n", - (unsigned long long)re->re.address, - (unsigned long long)re->re.size); + (unsigned long long)re->address, + (unsigned long long)re->size); } write_tree_source_node(f, dti->dt, 0); diff --git a/scripts/dtc/util.c b/scripts/dtc/util.c index 3550f86bd6df..9953c32a0244 100644 --- a/scripts/dtc/util.c +++ b/scripts/dtc/util.c @@ -396,7 +396,7 @@ void utilfdt_print_data(const char *data, int len) } while (s < data + len); } else if ((len % 4) == 0) { - const uint32_t *cell = (const uint32_t *)data; + const fdt32_t *cell = (const fdt32_t *)data; printf(" = <"); for (i = 0, len /= 4; i < len; i++) @@ -412,15 +412,16 @@ void utilfdt_print_data(const char *data, int len) } } -void util_version(void) +void NORETURN util_version(void) { printf("Version: %s\n", DTC_VERSION); exit(0); } -void util_usage(const char *errmsg, const char *synopsis, - const char *short_opts, struct option const long_opts[], - const char * const opts_help[]) +void NORETURN util_usage(const char *errmsg, const char *synopsis, + const char *short_opts, + struct option const long_opts[], + const char * const opts_help[]) { FILE *fp = errmsg ? stderr : stdout; const char a_arg[] = ""; diff --git a/scripts/dtc/util.h b/scripts/dtc/util.h index f5c4f1b50d30..ad5f41199edb 100644 --- a/scripts/dtc/util.h +++ b/scripts/dtc/util.h @@ -25,9 +25,17 @@ * USA */ +#ifdef __GNUC__ +#define PRINTF(i, j) __attribute__((format (printf, i, j))) +#define NORETURN __attribute__((noreturn)) +#else +#define PRINTF(i, j) +#define NORETURN +#endif + #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) -static inline void __attribute__((noreturn)) die(const char *str, ...) +static inline void NORETURN PRINTF(1, 2) die(const char *str, ...) { va_list ap; @@ -53,13 +61,14 @@ static inline void *xrealloc(void *p, size_t len) void *new = realloc(p, len); if (!new) - die("realloc() failed (len=%d)\n", len); + die("realloc() failed (len=%zd)\n", len); return new; } extern char *xstrdup(const char *s); -extern int xasprintf(char **strp, const char *fmt, ...); + +extern int PRINTF(2, 3) xasprintf(char **strp, const char *fmt, ...); extern char *join_path(const char *path, const char *name); /** @@ -188,7 +197,7 @@ void utilfdt_print_data(const char *data, int len); /** * Show source version and exit */ -void util_version(void) __attribute__((noreturn)); +void NORETURN util_version(void); /** * Show usage and exit @@ -202,9 +211,10 @@ void util_version(void) __attribute__((noreturn)); * @param long_opts The structure of long options * @param opts_help An array of help strings (should align with long_opts) */ -void util_usage(const char *errmsg, const char *synopsis, - const char *short_opts, struct option const long_opts[], - const char * const opts_help[]) __attribute__((noreturn)); +void NORETURN util_usage(const char *errmsg, const char *synopsis, + const char *short_opts, + struct option const long_opts[], + const char * const opts_help[]); /** * Show usage and exit diff --git a/scripts/dtc/version_gen.h b/scripts/dtc/version_gen.h index 16c2e53a85e3..1229e07b4912 100644 --- a/scripts/dtc/version_gen.h +++ b/scripts/dtc/version_gen.h @@ -1 +1 @@ -#define DTC_VERSION "DTC 1.4.2-g0931cea3" +#define DTC_VERSION "DTC 1.4.4-g756ffc4f" -- cgit v1.2.3 From f3e4559781bf0c393364baa6b772233088a711db Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 23 Mar 2017 16:18:51 +0100 Subject: x86/syscalls/32: Ignore arch_prctl for other architectures sys_arch_prctl is only provided on x86, and there is no reason to add it elsewhere. However, including it on the 32-bit syscall table caused a warning for most configurations on non-x86: :1328:2: warning: #warning syscall arch_prctl not implemented [-Wcpp] This adds an exception to the syscall table checking script. Fixes: 79170fda313e ("x86/syscalls/32: Wire up arch_prctl on x86-32") Signed-off-by: Arnd Bergmann Cc: Kyle Huey Link: http://lkml.kernel.org/r/20170323151904.706286-1-arnd@arndb.de Signed-off-by: Thomas Gleixner --- scripts/checksyscalls.sh | 1 + 1 file changed, 1 insertion(+) (limited to 'scripts') diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh index 2c9082ba6137..116b7735ee9f 100755 --- a/scripts/checksyscalls.sh +++ b/scripts/checksyscalls.sh @@ -148,6 +148,7 @@ cat << EOF #define __IGNORE_sysfs #define __IGNORE_uselib #define __IGNORE__sysctl +#define __IGNORE_arch_prctl /* ... including the "new" 32-bit uid syscalls */ #define __IGNORE_lchown32 -- cgit v1.2.3 From 42c269c88dc146982a54a8267f71abc99f12852a Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (VMware)" Date: Fri, 3 Mar 2017 16:15:39 -0500 Subject: ftrace: Allow for function tracing to record init functions on boot up Adding a hook into free_reserve_area() that informs ftrace that boot up init text is being free, lets ftrace safely remove those init functions from its records, which keeps ftrace from trying to modify text that no longer exists. Note, this still does not allow for tracing .init text of modules, as modules require different work for freeing its init code. Link: http://lkml.kernel.org/r/1488502497.7212.24.camel@linux.intel.com Cc: linux-mm@kvack.org Cc: Vlastimil Babka Cc: Mel Gorman Cc: Peter Zijlstra Requested-by: Todd Brandt Signed-off-by: Steven Rostedt (VMware) --- include/linux/ftrace.h | 5 +++++ include/linux/init.h | 4 +++- kernel/trace/ftrace.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ mm/page_alloc.c | 4 ++++ scripts/recordmcount.c | 1 + scripts/recordmcount.pl | 1 + 6 files changed, 58 insertions(+), 1 deletion(-) (limited to 'scripts') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 569db5589851..0276a2c487e6 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -146,6 +146,10 @@ struct ftrace_ops_hash { struct ftrace_hash *filter_hash; struct mutex regex_lock; }; + +void ftrace_free_mem(void *start, void *end); +#else +static inline void ftrace_free_mem(void *start, void *end) { } #endif /* @@ -262,6 +266,7 @@ static inline int ftrace_nr_registered_ops(void) } static inline void clear_ftrace_function(void) { } static inline void ftrace_kill(void) { } +static inline void ftrace_free_mem(void *start, void *end) { } #endif /* CONFIG_FUNCTION_TRACER */ #ifdef CONFIG_STACK_TRACER diff --git a/include/linux/init.h b/include/linux/init.h index 79af0962fd52..94769d687cf0 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -39,7 +39,7 @@ /* These are for everybody (although not all archs will actually discard it in modules) */ -#define __init __section(.init.text) __cold notrace __latent_entropy +#define __init __section(.init.text) __cold __inittrace __latent_entropy #define __initdata __section(.init.data) #define __initconst __section(.init.rodata) #define __exitdata __section(.exit.data) @@ -68,8 +68,10 @@ #ifdef MODULE #define __exitused +#define __inittrace notrace #else #define __exitused __used +#define __inittrace #endif #define __exit __section(.exit.text) __exitused __cold notrace diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index b9691ee8f6c1..0556a202c055 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -5262,6 +5262,50 @@ void ftrace_module_init(struct module *mod) } #endif /* CONFIG_MODULES */ +void ftrace_free_mem(void *start_ptr, void *end_ptr) +{ + unsigned long start = (unsigned long)start_ptr; + unsigned long end = (unsigned long)end_ptr; + struct ftrace_page **last_pg = &ftrace_pages_start; + struct ftrace_page *pg; + struct dyn_ftrace *rec; + struct dyn_ftrace key; + int order; + + key.ip = start; + key.flags = end; /* overload flags, as it is unsigned long */ + + mutex_lock(&ftrace_lock); + + for (pg = ftrace_pages_start; pg; last_pg = &pg->next, pg = *last_pg) { + if (end < pg->records[0].ip || + start >= (pg->records[pg->index - 1].ip + MCOUNT_INSN_SIZE)) + continue; + again: + rec = bsearch(&key, pg->records, pg->index, + sizeof(struct dyn_ftrace), + ftrace_cmp_recs); + if (!rec) + continue; + pg->index--; + if (!pg->index) { + *last_pg = pg->next; + order = get_count_order(pg->size / ENTRIES_PER_PAGE); + free_pages((unsigned long)pg->records, order); + kfree(pg); + pg = container_of(last_pg, struct ftrace_page, next); + if (!(*last_pg)) + ftrace_pages = pg; + continue; + } + memmove(rec, rec + 1, + (pg->index - (rec - pg->records)) * sizeof(*rec)); + /* More than one function may be in this block */ + goto again; + } + mutex_unlock(&ftrace_lock); +} + void __init ftrace_init(void) { extern unsigned long __start_mcount_loc[]; diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 6cbde310abed..eee82bfb7cd8 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -65,6 +65,7 @@ #include #include #include +#include #include #include @@ -6605,6 +6606,9 @@ unsigned long free_reserved_area(void *start, void *end, int poison, char *s) void *pos; unsigned long pages = 0; + /* This may be .init text, inform ftrace to remove it */ + ftrace_free_mem(start, end); + start = (void *)PAGE_ALIGN((unsigned long)start); end = (void *)((unsigned long)end & PAGE_MASK); for (pos = start; pos < end; pos += PAGE_SIZE, pages++) { diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c index aeb34223167c..16e086dcc567 100644 --- a/scripts/recordmcount.c +++ b/scripts/recordmcount.c @@ -412,6 +412,7 @@ static int is_mcounted_section_name(char const *const txtname) { return strcmp(".text", txtname) == 0 || + strcmp(".init.text", txtname) == 0 || strcmp(".ref.text", txtname) == 0 || strcmp(".sched.text", txtname) == 0 || strcmp(".spinlock.text", txtname) == 0 || diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl index 0b6002b36f20..1633c3e6c0b9 100755 --- a/scripts/recordmcount.pl +++ b/scripts/recordmcount.pl @@ -130,6 +130,7 @@ if ($inputfile =~ m,kernel/trace/ftrace\.o$,) { # Acceptable sections to record. my %text_sections = ( ".text" => 1, + ".init.text" => 1, ".ref.text" => 1, ".sched.text" => 1, ".spinlock.text" => 1, -- cgit v1.2.3 From 4f6cce39105e63587e53361bb670786b52d533ae Mon Sep 17 00:00:00 2001 From: SeongJae Park Date: Mon, 27 Mar 2017 21:44:06 +0900 Subject: Fix dead URLs to ftp.kernel.org URLs to ftp.kernel.org are still exist though the service is closed [0]. This commit fixes the URLs to use www.kernel.org instead. [0] https://www.kernel.org/shutting-down-ftp-services.html Signed-off-by: SeongJae Park Signed-off-by: Jiri Kosina --- MAINTAINERS | 2 +- drivers/block/Kconfig | 2 +- drivers/md/Kconfig | 2 +- fs/autofs4/Kconfig | 2 +- scripts/ksymoops/README | 5 ++--- scripts/package/builddeb | 4 ++-- 6 files changed, 8 insertions(+), 9 deletions(-) (limited to 'scripts') diff --git a/MAINTAINERS b/MAINTAINERS index c776906f67a9..37d7ff4cf1ea 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10074,7 +10074,7 @@ W: http://sourceforge.net/projects/accel-pptp PREEMPTIBLE KERNEL M: Robert Love L: kpreempt-tech@lists.sourceforge.net -W: ftp://ftp.kernel.org/pub/linux/kernel/people/rml/preempt-kernel +W: https://www.kernel.org/pub/linux/kernel/people/rml/preempt-kernel S: Supported F: Documentation/preempt-locking.txt F: include/linux/preempt.h diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig index f744de7a0f9b..7b608cf2516f 100644 --- a/drivers/block/Kconfig +++ b/drivers/block/Kconfig @@ -219,7 +219,7 @@ config BLK_DEV_LOOP To use the loop device, you need the losetup utility, found in the util-linux package, see - . + . The loop device driver can also be used to "hide" a file system in a disk partition, floppy, or regular file, either using encryption diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index b7767da50c26..585ff3284bf5 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -115,7 +115,7 @@ config MD_RAID10 RAID-10 requires mdadm-1.7.0 or later, available at: - ftp://ftp.kernel.org/pub/linux/utils/raid/mdadm/ + https://www.kernel.org/pub/linux/utils/raid/mdadm/ If unsure, say Y. diff --git a/fs/autofs4/Kconfig b/fs/autofs4/Kconfig index 1204d6384d39..44727bf18297 100644 --- a/fs/autofs4/Kconfig +++ b/fs/autofs4/Kconfig @@ -7,7 +7,7 @@ config AUTOFS4_FS automounter (amd), which is a pure user space daemon. To use the automounter you need the user-space tools from - ; you also + ; you also want to answer Y to "NFS file system support", below. To compile this support as a module, choose M here: the module will be diff --git a/scripts/ksymoops/README b/scripts/ksymoops/README index f6cb06e3f30e..413043980127 100644 --- a/scripts/ksymoops/README +++ b/scripts/ksymoops/README @@ -1,8 +1,7 @@ ksymoops has been removed from the kernel. It was always meant to be a free standing utility, not linked to any particular kernel version. The latest version can be found in -ftp://ftp..kernel.org/pub/linux/utils/kernel/ksymoops together -with patches to other utilities in order to give more accurate Oops -debugging. +https://www.kernel.org/pub/linux/utils/kernel/ksymoops together with patches to +other utilities in order to give more accurate Oops debugging. Keith Owens Sat Jun 19 10:30:34 EST 1999 diff --git a/scripts/package/builddeb b/scripts/package/builddeb index 3c575cd07888..676fc10c9514 100755 --- a/scripts/package/builddeb +++ b/scripts/package/builddeb @@ -262,8 +262,8 @@ EOF cat < debian/copyright This is a packacked upstream version of the Linux kernel. -The sources may be found at most Linux ftp sites, including: -ftp://ftp.kernel.org/pub/linux/kernel +The sources may be found at most Linux archive sites, including: +https://www.kernel.org/pub/linux/kernel Copyright: 1991 - 2015 Linus Torvalds and others. -- cgit v1.2.3 From 8654cb8d0371de3f119c657531abf2ee4423cb44 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Tue, 21 Mar 2017 09:14:20 -0500 Subject: dtc: update warning settings for new bus and node/property name checks dtc gained new warnings checking PCI and simple buses, unit address formatting, and stricter node and property name checking. Disable the new dtc warnings by default as there are 1000s. As before, warnings are enabled with W=1 or W=2. The strict node and property name checks are a bit subjective, so they are only enabled for W=2. Signed-off-by: Rob Herring --- scripts/Makefile.lib | 12 +++++++++++- scripts/dtc/update-dtc-source.sh | 1 + 2 files changed, 12 insertions(+), 1 deletion(-) (limited to 'scripts') diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 0a07f9014944..8066b6185d1e 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -280,7 +280,17 @@ DTC ?= $(objtree)/scripts/dtc/dtc # Disable noisy checks by default ifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),) -DTC_FLAGS += -Wno-unit_address_vs_reg +DTC_FLAGS += -Wno-unit_address_vs_reg \ + -Wno-simple_bus_reg \ + -Wno-unit_address_format \ + -Wno-pci_bridge \ + -Wno-pci_device_bus_num \ + -Wno-pci_device_reg +endif + +ifeq ($(KBUILD_ENABLE_EXTRA_GCC_CHECKS),2) +DTC_FLAGS += -Wnode_name_chars_strict \ + -Wproperty_name_chars_strict endif # Generate an assembly file to wrap the output of the device tree compiler diff --git a/scripts/dtc/update-dtc-source.sh b/scripts/dtc/update-dtc-source.sh index c92e6bd9458d..b8ebcc6722d2 100755 --- a/scripts/dtc/update-dtc-source.sh +++ b/scripts/dtc/update-dtc-source.sh @@ -77,4 +77,5 @@ This adds the following commits from upstream: ${dtc_log} EOF ) + git commit -e -v -s -m "${commit_msg}" -- cgit v1.2.3 From b97f193abf83e30ef43317ba4883ce3a82f8e8b2 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 30 Mar 2017 17:11:28 -0300 Subject: scripts/kernel-doc: fix parser for apostrophes On ReST, adding a text like ``literal`` is valid. However, the kernel-doc script won't handle it fine. We really need this feature, in order to escape things like %ph, with is found on some C files. Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Jonathan Corbet --- scripts/kernel-doc | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'scripts') diff --git a/scripts/kernel-doc b/scripts/kernel-doc index 33c85dfdfce9..a4e5cc3b38e8 100755 --- a/scripts/kernel-doc +++ b/scripts/kernel-doc @@ -202,6 +202,7 @@ EOF # '&struct_name.member' - name of a structure member # '@parameter' - name of a parameter # '%CONST' - name of a constant. +# '``LITERAL``' - literal string without any spaces on it. ## init lots of data @@ -210,7 +211,8 @@ my $warnings = 0; my $anon_struct_union = 0; # match expressions used to find embedded type information -my $type_constant = '\%([-_\w]+)'; +my $type_constant = '\b``([^\`]+)``\b'; +my $type_constant2 = '\%([-_\w]+)'; my $type_func = '(\w+)\(\)'; my $type_param = '\@(\w+(\.\.\.)?)'; my $type_fp_param = '\@(\w+)\(\)'; # Special RST handling for func ptr params @@ -235,6 +237,7 @@ my $type_member_func = $type_member . '\(\)'; # these work fairly well my @highlights_html = ( [$type_constant, "\$1"], + [$type_constant2, "\$1"], [$type_func, "\$1"], [$type_enum_xml, "\$1"], [$type_struct_xml, "\$1"], @@ -252,6 +255,7 @@ my $blankline_html = $local_lt . "p" . $local_gt; # was "

" # html version 5 my @highlights_html5 = ( [$type_constant, "\$1"], + [$type_constant2, "\$1"], [$type_func, "\$1"], [$type_enum_xml, "\$1"], [$type_struct_xml, "\$1"], @@ -268,6 +272,7 @@ my $blankline_html5 = $local_lt . "br /" . $local_gt; my @highlights_xml = ( ["([^=])\\\"([^\\\"<]+)\\\"", "\$1\$2"], [$type_constant, "\$1"], + [$type_constant2, "\$1"], [$type_enum_xml, "\$1"], [$type_struct_xml, "\$1"], [$type_typedef_xml, "\$1"], @@ -283,6 +288,7 @@ my $blankline_xml = $local_lt . "/para" . $local_gt . $local_lt . "para" . $loca # gnome, docbook format my @highlights_gnome = ( [$type_constant, "\$1"], + [$type_constant2, "\$1"], [$type_func, "\$1"], [$type_enum, "\$1"], [$type_struct, "\$1"], @@ -298,6 +304,7 @@ my $blankline_gnome = "\n"; # these are pretty rough my @highlights_man = ( [$type_constant, "\$1"], + [$type_constant2, "\$1"], [$type_func, "\\\\fB\$1\\\\fP"], [$type_enum, "\\\\fI\$1\\\\fP"], [$type_struct, "\\\\fI\$1\\\\fP"], @@ -312,6 +319,7 @@ my $blankline_man = ""; # text-mode my @highlights_text = ( [$type_constant, "\$1"], + [$type_constant2, "\$1"], [$type_func, "\$1"], [$type_enum, "\$1"], [$type_struct, "\$1"], @@ -326,6 +334,7 @@ my $blankline_text = ""; # rst-mode my @highlights_rst = ( [$type_constant, "``\$1``"], + [$type_constant2, "``\$1``"], # Note: need to escape () to avoid func matching later [$type_member_func, "\\:c\\:type\\:`\$1\$2\$3\\\\(\\\\) <\$1>`"], [$type_member, "\\:c\\:type\\:`\$1\$2\$3 <\$1>`"], @@ -344,6 +353,7 @@ my $blankline_rst = "\n"; # list mode my @highlights_list = ( [$type_constant, "\$1"], + [$type_constant2, "\$1"], [$type_func, "\$1"], [$type_enum, "\$1"], [$type_struct, "\$1"], -- cgit v1.2.3 From f9b5c5304ce212b72c5c997b298ab96002e1634f Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 30 Mar 2017 17:11:29 -0300 Subject: scripts/kernel-doc: fix handling of parameters with parenthesis lib/crc32c defines one parameter as: const u32 (*tab)[256] Better handle parenthesis, to avoid those warnings: ./lib/crc32.c:149: warning: No description found for parameter 'tab)[256]' ./lib/crc32.c:149: warning: Excess function parameter 'tab' description in 'crc32_le_generic' ./lib/crc32.c:294: warning: No description found for parameter 'tab)[256]' ./lib/crc32.c:294: warning: Excess function parameter 'tab' description in 'crc32_be_generic' Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Jonathan Corbet --- scripts/kernel-doc | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'scripts') diff --git a/scripts/kernel-doc b/scripts/kernel-doc index a4e5cc3b38e8..a26a5f2dce39 100755 --- a/scripts/kernel-doc +++ b/scripts/kernel-doc @@ -2402,8 +2402,7 @@ sub push_parameter($$$) { } $anon_struct_union = 0; - my $param_name = $param; - $param_name =~ s/\[.*//; + $param =~ s/[\[\)].*//; if ($type eq "" && $param =~ /\.\.\.$/) { @@ -2434,9 +2433,9 @@ sub push_parameter($$$) { # but inline preprocessor statements); # also ignore unnamed structs/unions; if (!$anon_struct_union) { - if (!defined $parameterdescs{$param_name} && $param_name !~ /^#/) { + if (!defined $parameterdescs{$param} && $param !~ /^#/) { - $parameterdescs{$param_name} = $undescribed; + $parameterdescs{$param} = $undescribed; if (($type eq 'function') || ($type eq 'enum')) { print STDERR "${file}:$.: warning: Function parameter ". -- cgit v1.2.3 From 8af11c1cdd8fa08217e702b57cf96e9030db52b2 Mon Sep 17 00:00:00 2001 From: Saul Wold Date: Tue, 28 Mar 2017 15:06:08 -0700 Subject: ver_linux: Use /usr/bin/awk instead of /bin/awk Most Linux distributions contain awk in /usr/bin by default, not in /bin. This script's suggested use is for creating version information for bug reporting. This has been tested on a number of different distributions, including Fedora, Ubuntu, OpenSUSE, Debian, Centos, Arch Linuxi, and Poky! Signed-off-by: Saul Wold Reviewed-by: Alexander Kapshuk Reviewed-by: Mark Gross Signed-off-by: Greg Kroah-Hartman --- scripts/ver_linux | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'scripts') diff --git a/scripts/ver_linux b/scripts/ver_linux index 430b201f3e25..b51de8a7e2a3 100755 --- a/scripts/ver_linux +++ b/scripts/ver_linux @@ -1,4 +1,4 @@ -#!/bin/awk -f +#!/usr/bin/awk -f # Before running this script please ensure that your PATH is # typical as you use for compilation/installation. I use # /bin /sbin /usr/bin /usr/sbin /usr/local/bin, but it may -- cgit v1.2.3 From c3f0d0bc5b01ad90c45276952802455750444b4f Mon Sep 17 00:00:00 2001 From: Mark Charlebois Date: Fri, 31 Mar 2017 22:38:13 +0200 Subject: kbuild, LLVMLinux: Add -Werror to cc-option to support clang MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Clang will warn about unknown warnings but will not return false unless -Werror is set. GCC will return false if an unknown warning is passed. Adding -Werror make both compiler behave the same. [arnd: it turns out we need the same patch for testing whether -ffunction-sections works right with gcc. I've build tested extensively with this patch applied, so let's just merge this one now.] Signed-off-by: Mark Charlebois Signed-off-by: Behan Webster Reviewed-by: Jan-Simon Möller Signed-off-by: Arnd Bergmann Acked-by: Kees Cook Signed-off-by: Masahiro Yamada --- scripts/Kbuild.include | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'scripts') diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include index d6ca649cb0e9..a70fd26204de 100644 --- a/scripts/Kbuild.include +++ b/scripts/Kbuild.include @@ -116,12 +116,12 @@ CC_OPTION_CFLAGS = $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS)) # Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586) cc-option = $(call try-run,\ - $(CC) $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2)) + $(CC) -Werror $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2)) # cc-option-yn # Usage: flag := $(call cc-option-yn,-march=winchip-c6) cc-option-yn = $(call try-run,\ - $(CC) $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n) + $(CC) -Werror $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",y,n) # cc-option-align # Prefix align with either -falign or -malign @@ -131,7 +131,7 @@ cc-option-align = $(subst -functions=0,,\ # cc-disable-warning # Usage: cflags-y += $(call cc-disable-warning,unused-but-set-variable) cc-disable-warning = $(call try-run,\ - $(CC) $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1))) + $(CC) -Werror $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -W$(strip $(1)) -c -x c /dev/null -o "$$TMP",-Wno-$(strip $(1))) # cc-name # Expands to either gcc or clang -- cgit v1.2.3 From ebf003f0cfb3705e60d40dedc3ec949176c741af Mon Sep 17 00:00:00 2001 From: Matthias Kaehlcke Date: Wed, 12 Apr 2017 12:43:52 -0700 Subject: kbuild: Consolidate header generation from ASM offset information Largely redundant code is used in different places to generate C headers from offset information extracted from assembly language output. Consolidate the code in Makefile.lib and use this instead. Signed-off-by: Matthias Kaehlcke Signed-off-by: Masahiro Yamada --- Kbuild | 25 ------------------------- arch/ia64/kernel/Makefile | 26 ++------------------------ scripts/Makefile.lib | 28 ++++++++++++++++++++++++++++ scripts/mod/Makefile | 28 ++-------------------------- 4 files changed, 32 insertions(+), 75 deletions(-) (limited to 'scripts') diff --git a/Kbuild b/Kbuild index 3d0ae152af7c..94c752762bc2 100644 --- a/Kbuild +++ b/Kbuild @@ -7,31 +7,6 @@ # 4) Check for missing system calls # 5) Generate constants.py (may need bounds.h) -# Default sed regexp - multiline due to syntax constraints -define sed-y - "/^->/{s:->#\(.*\):/* \1 */:; \ - s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ - s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ - s:->::; p;}" -endef - -# Use filechk to avoid rebuilds when a header changes, but the resulting file -# does not -define filechk_offsets - (set -e; \ - echo "#ifndef $2"; \ - echo "#define $2"; \ - echo "/*"; \ - echo " * DO NOT MODIFY."; \ - echo " *"; \ - echo " * This file was generated by Kbuild"; \ - echo " */"; \ - echo ""; \ - sed -ne $(sed-y); \ - echo ""; \ - echo "#endif" ) -endef - ##### # 1) Generate bounds.h diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile index 3686d6abafde..9edda5466020 100644 --- a/arch/ia64/kernel/Makefile +++ b/arch/ia64/kernel/Makefile @@ -50,32 +50,10 @@ CFLAGS_traps.o += -mfixed-range=f2-f5,f16-f31 # The gate DSO image is built using a special linker script. include $(src)/Makefile.gate -# Calculate NR_IRQ = max(IA64_NATIVE_NR_IRQS, XEN_NR_IRQS, ...) based on config -define sed-y - "/^->/{s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; s:->::; p;}" -endef -quiet_cmd_nr_irqs = GEN $@ -define cmd_nr_irqs - (set -e; \ - echo "#ifndef __ASM_NR_IRQS_H__"; \ - echo "#define __ASM_NR_IRQS_H__"; \ - echo "/*"; \ - echo " * DO NOT MODIFY."; \ - echo " *"; \ - echo " * This file was generated by Kbuild"; \ - echo " *"; \ - echo " */"; \ - echo ""; \ - sed -ne $(sed-y) $<; \ - echo ""; \ - echo "#endif" ) > $@ -endef - # We use internal kbuild rules to avoid the "is up to date" message from make arch/$(SRCARCH)/kernel/nr-irqs.s: arch/$(SRCARCH)/kernel/nr-irqs.c $(Q)mkdir -p $(dir $@) $(call if_changed_dep,cc_s_c) -include/generated/nr-irqs.h: arch/$(SRCARCH)/kernel/nr-irqs.s - $(Q)mkdir -p $(dir $@) - $(call cmd,nr_irqs) +include/generated/nr-irqs.h: arch/$(SRCARCH)/kernel/nr-irqs.s FORCE + $(call filechk,offsets,__ASM_NR_IRQS_H__) diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 0a07f9014944..dd567e5d59e0 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -408,3 +408,31 @@ quiet_cmd_xzmisc = XZMISC $@ cmd_xzmisc = (cat $(filter-out FORCE,$^) | \ xz --check=crc32 --lzma2=dict=1MiB) > $@ || \ (rm -f $@ ; false) + +# ASM offsets +# --------------------------------------------------------------------------- + +# Default sed regexp - multiline due to syntax constraints +define sed-offsets + "/^->/{s:->#\(.*\):/* \1 */:; \ + s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ + s:->::; p;}" +endef + +# Use filechk to avoid rebuilds when a header changes, but the resulting file +# does not +define filechk_offsets + (set -e; \ + echo "#ifndef $2"; \ + echo "#define $2"; \ + echo "/*"; \ + echo " * DO NOT MODIFY."; \ + echo " *"; \ + echo " * This file was generated by Kbuild"; \ + echo " */"; \ + echo ""; \ + sed -ne $(sed-offsets); \ + echo ""; \ + echo "#endif" ) +endef diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile index 19d9bcadc0cc..b497d9764dcf 100644 --- a/scripts/mod/Makefile +++ b/scripts/mod/Makefile @@ -7,32 +7,8 @@ modpost-objs := modpost.o file2alias.o sumversion.o devicetable-offsets-file := devicetable-offsets.h -define sed-y - "/^->/{s:->#\(.*\):/* \1 */:; \ - s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \ - s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \ - s:->::; p;}" -endef - -quiet_cmd_offsets = GEN $@ -define cmd_offsets - (set -e; \ - echo "#ifndef __DEVICETABLE_OFFSETS_H__"; \ - echo "#define __DEVICETABLE_OFFSETS_H__"; \ - echo "/*"; \ - echo " * DO NOT MODIFY."; \ - echo " *"; \ - echo " * This file was generated by Kbuild"; \ - echo " *"; \ - echo " */"; \ - echo ""; \ - sed -ne $(sed-y) $<; \ - echo ""; \ - echo "#endif" ) > $@ -endef - -$(obj)/$(devicetable-offsets-file): $(obj)/devicetable-offsets.s - $(call if_changed,offsets) +$(obj)/$(devicetable-offsets-file): $(obj)/devicetable-offsets.s FORCE + $(call filechk,offsets,__DEVICETABLE_OFFSETS_H__) targets += $(devicetable-offsets-file) devicetable-offsets.s -- cgit v1.2.3 From bc167c7de8886f08b3d8266b176eefaa9f22cd80 Mon Sep 17 00:00:00 2001 From: Todd E Brandt Date: Fri, 7 Apr 2017 11:05:35 -0700 Subject: tools: power: pm-graph: AnalyzeSuspend v4.6 Moved from scripts into tools, and updated from 4.5 to 4.6 - Changed the tool title to SleepGraph - Reformatted the code so analyze_suspend can be used as a library - Reorganized all html/js/css handling code to be used by other tools - upgraded the -summary feature to work faster with better readability Signed-off-by: Todd Brandt Signed-off-by: Rafael J. Wysocki --- scripts/analyze_suspend.py | 5235 ------------------------------ tools/power/pm-graph/analyze_suspend.py | 5309 +++++++++++++++++++++++++++++++ 2 files changed, 5309 insertions(+), 5235 deletions(-) delete mode 100755 scripts/analyze_suspend.py create mode 100755 tools/power/pm-graph/analyze_suspend.py (limited to 'scripts') diff --git a/scripts/analyze_suspend.py b/scripts/analyze_suspend.py deleted file mode 100755 index 20cdb2bc1dae..000000000000 --- a/scripts/analyze_suspend.py +++ /dev/null @@ -1,5235 +0,0 @@ -#!/usr/bin/python -# -# Tool for analyzing suspend/resume timing -# Copyright (c) 2013, Intel Corporation. -# -# This program is free software; you can redistribute it and/or modify it -# under the terms and conditions of the GNU General Public License, -# version 2, as published by the Free Software Foundation. -# -# This program is distributed in the hope it will be useful, but WITHOUT -# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or -# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for -# more details. -# -# You should have received a copy of the GNU General Public License along with -# this program; if not, write to the Free Software Foundation, Inc., -# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. -# -# Authors: -# Todd Brandt -# -# Links: -# Home Page -# https://01.org/suspendresume -# Source repo -# https://github.com/01org/suspendresume -# -# Description: -# This tool is designed to assist kernel and OS developers in optimizing -# their linux stack's suspend/resume time. Using a kernel image built -# with a few extra options enabled, the tool will execute a suspend and -# will capture dmesg and ftrace data until resume is complete. This data -# is transformed into a device timeline and a callgraph to give a quick -# and detailed view of which devices and callbacks are taking the most -# time in suspend/resume. The output is a single html file which can be -# viewed in firefox or chrome. -# -# The following kernel build options are required: -# CONFIG_PM_DEBUG=y -# CONFIG_PM_SLEEP_DEBUG=y -# CONFIG_FTRACE=y -# CONFIG_FUNCTION_TRACER=y -# CONFIG_FUNCTION_GRAPH_TRACER=y -# CONFIG_KPROBES=y -# CONFIG_KPROBES_ON_FTRACE=y -# -# For kernel versions older than 3.15: -# The following additional kernel parameters are required: -# (e.g. in file /etc/default/grub) -# GRUB_CMDLINE_LINUX_DEFAULT="... initcall_debug log_buf_len=16M ..." -# - -# ----------------- LIBRARIES -------------------- - -import sys -import time -import os -import string -import re -import platform -from datetime import datetime -import struct -import ConfigParser -from threading import Thread -from subprocess import call, Popen, PIPE - -# ----------------- CLASSES -------------------- - -# Class: SystemValues -# Description: -# A global, single-instance container used to -# store system values and test parameters -class SystemValues: - ansi = False - version = '4.5' - verbose = False - addlogs = False - mindevlen = 0.0 - mincglen = 0.0 - cgphase = '' - cgtest = -1 - callloopmaxgap = 0.0001 - callloopmaxlen = 0.005 - srgap = 0 - cgexp = False - outdir = '' - testdir = '.' - tpath = '/sys/kernel/debug/tracing/' - fpdtpath = '/sys/firmware/acpi/tables/FPDT' - epath = '/sys/kernel/debug/tracing/events/power/' - traceevents = [ - 'suspend_resume', - 'device_pm_callback_end', - 'device_pm_callback_start' - ] - logmsg = '' - testcommand = '' - mempath = '/dev/mem' - powerfile = '/sys/power/state' - suspendmode = 'mem' - hostname = 'localhost' - prefix = 'test' - teststamp = '' - dmesgstart = 0.0 - dmesgfile = '' - ftracefile = '' - htmlfile = '' - embedded = False - rtcwake = False - rtcwaketime = 10 - rtcpath = '' - devicefilter = [] - stamp = 0 - execcount = 1 - x2delay = 0 - usecallgraph = False - usetraceevents = False - usetraceeventsonly = False - usetracemarkers = True - usekprobes = True - usedevsrc = False - useprocmon = False - notestrun = False - mixedphaseheight = True - devprops = dict() - predelay = 0 - postdelay = 0 - procexecfmt = 'ps - (?P.*)$' - devpropfmt = '# Device Properties: .*' - tracertypefmt = '# tracer: (?P.*)' - firmwarefmt = '# fwsuspend (?P[0-9]*) fwresume (?P[0-9]*)$' - stampfmt = '# suspend-(?P[0-9]{2})(?P[0-9]{2})(?P[0-9]{2})-'+\ - '(?P[0-9]{2})(?P[0-9]{2})(?P[0-9]{2})'+\ - ' (?P.*) (?P.*) (?P.*)$' - tracefuncs = { - 'sys_sync': dict(), - 'pm_prepare_console': dict(), - 'pm_notifier_call_chain': dict(), - 'freeze_processes': dict(), - 'freeze_kernel_threads': dict(), - 'pm_restrict_gfp_mask': dict(), - 'acpi_suspend_begin': dict(), - 'suspend_console': dict(), - 'acpi_pm_prepare': dict(), - 'syscore_suspend': dict(), - 'arch_enable_nonboot_cpus_end': dict(), - 'syscore_resume': dict(), - 'acpi_pm_finish': dict(), - 'resume_console': dict(), - 'acpi_pm_end': dict(), - 'pm_restore_gfp_mask': dict(), - 'thaw_processes': dict(), - 'pm_restore_console': dict(), - 'CPU_OFF': { - 'func':'_cpu_down', - 'args_x86_64': {'cpu':'%di:s32'}, - 'format': 'CPU_OFF[{cpu}]' - }, - 'CPU_ON': { - 'func':'_cpu_up', - 'args_x86_64': {'cpu':'%di:s32'}, - 'format': 'CPU_ON[{cpu}]' - }, - } - dev_tracefuncs = { - # general wait/delay/sleep - 'msleep': { 'args_x86_64': {'time':'%di:s32'}, 'ub': 1 }, - 'schedule_timeout_uninterruptible': { 'args_x86_64': {'timeout':'%di:s32'}, 'ub': 1 }, - 'schedule_timeout': { 'args_x86_64': {'timeout':'%di:s32'}, 'ub': 1 }, - 'udelay': { 'func':'__const_udelay', 'args_x86_64': {'loops':'%di:s32'}, 'ub': 1 }, - 'usleep_range': { 'args_x86_64': {'min':'%di:s32', 'max':'%si:s32'}, 'ub': 1 }, - 'mutex_lock_slowpath': { 'func':'__mutex_lock_slowpath', 'ub': 1 }, - 'acpi_os_stall': {'ub': 1}, - # ACPI - 'acpi_resume_power_resources': dict(), - 'acpi_ps_parse_aml': dict(), - # filesystem - 'ext4_sync_fs': dict(), - # 80211 - 'iwlagn_mac_start': dict(), - 'iwlagn_alloc_bcast_station': dict(), - 'iwl_trans_pcie_start_hw': dict(), - 'iwl_trans_pcie_start_fw': dict(), - 'iwl_run_init_ucode': dict(), - 'iwl_load_ucode_wait_alive': dict(), - 'iwl_alive_start': dict(), - 'iwlagn_mac_stop': dict(), - 'iwlagn_mac_suspend': dict(), - 'iwlagn_mac_resume': dict(), - 'iwlagn_mac_add_interface': dict(), - 'iwlagn_mac_remove_interface': dict(), - 'iwlagn_mac_change_interface': dict(), - 'iwlagn_mac_config': dict(), - 'iwlagn_configure_filter': dict(), - 'iwlagn_mac_hw_scan': dict(), - 'iwlagn_bss_info_changed': dict(), - 'iwlagn_mac_channel_switch': dict(), - 'iwlagn_mac_flush': dict(), - # ATA - 'ata_eh_recover': { 'args_x86_64': {'port':'+36(%di):s32'} }, - # i915 - 'i915_gem_resume': dict(), - 'i915_restore_state': dict(), - 'intel_opregion_setup': dict(), - 'g4x_pre_enable_dp': dict(), - 'vlv_pre_enable_dp': dict(), - 'chv_pre_enable_dp': dict(), - 'g4x_enable_dp': dict(), - 'vlv_enable_dp': dict(), - 'intel_hpd_init': dict(), - 'intel_opregion_register': dict(), - 'intel_dp_detect': dict(), - 'intel_hdmi_detect': dict(), - 'intel_opregion_init': dict(), - 'intel_fbdev_set_suspend': dict(), - } - kprobes = dict() - timeformat = '%.3f' - def __init__(self): - # if this is a phoronix test run, set some default options - if('LOG_FILE' in os.environ and 'TEST_RESULTS_IDENTIFIER' in os.environ): - self.embedded = True - self.addlogs = True - self.htmlfile = os.environ['LOG_FILE'] - self.archargs = 'args_'+platform.machine() - self.hostname = platform.node() - if(self.hostname == ''): - self.hostname = 'localhost' - rtc = "rtc0" - if os.path.exists('/dev/rtc'): - rtc = os.readlink('/dev/rtc') - rtc = '/sys/class/rtc/'+rtc - if os.path.exists(rtc) and os.path.exists(rtc+'/date') and \ - os.path.exists(rtc+'/time') and os.path.exists(rtc+'/wakealarm'): - self.rtcpath = rtc - if (hasattr(sys.stdout, 'isatty') and sys.stdout.isatty()): - self.ansi = True - def setPrecision(self, num): - if num < 0 or num > 6: - return - self.timeformat = '%.{0}f'.format(num) - def setOutputFolder(self, value): - args = dict() - n = datetime.now() - args['date'] = n.strftime('%y%m%d') - args['time'] = n.strftime('%H%M%S') - args['hostname'] = self.hostname - self.outdir = value.format(**args) - def setOutputFile(self): - if((self.htmlfile == '') and (self.dmesgfile != '')): - m = re.match('(?P.*)_dmesg\.txt$', self.dmesgfile) - if(m): - self.htmlfile = m.group('name')+'.html' - if((self.htmlfile == '') and (self.ftracefile != '')): - m = re.match('(?P.*)_ftrace\.txt$', self.ftracefile) - if(m): - self.htmlfile = m.group('name')+'.html' - if(self.htmlfile == ''): - self.htmlfile = 'output.html' - def initTestOutput(self, subdir, testpath=''): - self.prefix = self.hostname - v = open('/proc/version', 'r').read().strip() - kver = string.split(v)[2] - n = datetime.now() - testtime = n.strftime('suspend-%m%d%y-%H%M%S') - if not testpath: - testpath = n.strftime('suspend-%y%m%d-%H%M%S') - if(subdir != "."): - self.testdir = subdir+"/"+testpath - else: - self.testdir = testpath - self.teststamp = \ - '# '+testtime+' '+self.prefix+' '+self.suspendmode+' '+kver - if(self.embedded): - self.dmesgfile = \ - '/tmp/'+testtime+'_'+self.suspendmode+'_dmesg.txt' - self.ftracefile = \ - '/tmp/'+testtime+'_'+self.suspendmode+'_ftrace.txt' - return - self.dmesgfile = \ - self.testdir+'/'+self.prefix+'_'+self.suspendmode+'_dmesg.txt' - self.ftracefile = \ - self.testdir+'/'+self.prefix+'_'+self.suspendmode+'_ftrace.txt' - self.htmlfile = \ - self.testdir+'/'+self.prefix+'_'+self.suspendmode+'.html' - if not os.path.isdir(self.testdir): - os.mkdir(self.testdir) - def setDeviceFilter(self, value): - self.devicefilter = [] - if value: - value = value.split(',') - for i in value: - self.devicefilter.append(i.strip()) - def rtcWakeAlarmOn(self): - call('echo 0 > '+self.rtcpath+'/wakealarm', shell=True) - outD = open(self.rtcpath+'/date', 'r').read().strip() - outT = open(self.rtcpath+'/time', 'r').read().strip() - mD = re.match('^(?P[0-9]*)-(?P[0-9]*)-(?P[0-9]*)', outD) - mT = re.match('^(?P[0-9]*):(?P[0-9]*):(?P[0-9]*)', outT) - if(mD and mT): - # get the current time from hardware - utcoffset = int((datetime.now() - datetime.utcnow()).total_seconds()) - dt = datetime(\ - int(mD.group('y')), int(mD.group('m')), int(mD.group('d')), - int(mT.group('h')), int(mT.group('m')), int(mT.group('s'))) - nowtime = int(dt.strftime('%s')) + utcoffset - else: - # if hardware time fails, use the software time - nowtime = int(datetime.now().strftime('%s')) - alarm = nowtime + self.rtcwaketime - call('echo %d > %s/wakealarm' % (alarm, self.rtcpath), shell=True) - def rtcWakeAlarmOff(self): - call('echo 0 > %s/wakealarm' % self.rtcpath, shell=True) - def initdmesg(self): - # get the latest time stamp from the dmesg log - fp = Popen('dmesg', stdout=PIPE).stdout - ktime = '0' - for line in fp: - line = line.replace('\r\n', '') - idx = line.find('[') - if idx > 1: - line = line[idx:] - m = re.match('[ \t]*(\[ *)(?P[0-9\.]*)(\]) (?P.*)', line) - if(m): - ktime = m.group('ktime') - fp.close() - self.dmesgstart = float(ktime) - def getdmesg(self): - # store all new dmesg lines since initdmesg was called - fp = Popen('dmesg', stdout=PIPE).stdout - op = open(self.dmesgfile, 'a') - for line in fp: - line = line.replace('\r\n', '') - idx = line.find('[') - if idx > 1: - line = line[idx:] - m = re.match('[ \t]*(\[ *)(?P[0-9\.]*)(\]) (?P.*)', line) - if(not m): - continue - ktime = float(m.group('ktime')) - if ktime > self.dmesgstart: - op.write(line) - fp.close() - op.close() - def addFtraceFilterFunctions(self, file): - fp = open(file) - list = fp.read().split('\n') - fp.close() - for i in list: - if len(i) < 2: - continue - self.tracefuncs[i] = dict() - def getFtraceFilterFunctions(self, current): - rootCheck(True) - if not current: - call('cat '+self.tpath+'available_filter_functions', shell=True) - return - fp = open(self.tpath+'available_filter_functions') - master = fp.read().split('\n') - fp.close() - for i in self.tracefuncs: - if 'func' in self.tracefuncs[i]: - i = self.tracefuncs[i]['func'] - if i in master: - print i - else: - print self.colorText(i) - def setFtraceFilterFunctions(self, list): - fp = open(self.tpath+'available_filter_functions') - master = fp.read().split('\n') - fp.close() - flist = '' - for i in list: - if i not in master: - continue - if ' [' in i: - flist += i.split(' ')[0]+'\n' - else: - flist += i+'\n' - fp = open(self.tpath+'set_graph_function', 'w') - fp.write(flist) - fp.close() - def basicKprobe(self, name): - self.kprobes[name] = {'name': name,'func': name,'args': dict(),'format': name} - def defaultKprobe(self, name, kdata): - k = kdata - for field in ['name', 'format', 'func']: - if field not in k: - k[field] = name - if self.archargs in k: - k['args'] = k[self.archargs] - else: - k['args'] = dict() - k['format'] = name - self.kprobes[name] = k - def kprobeColor(self, name): - if name not in self.kprobes or 'color' not in self.kprobes[name]: - return '' - return self.kprobes[name]['color'] - def kprobeDisplayName(self, name, dataraw): - if name not in self.kprobes: - self.basicKprobe(name) - data = '' - quote=0 - # first remvoe any spaces inside quotes, and the quotes - for c in dataraw: - if c == '"': - quote = (quote + 1) % 2 - if quote and c == ' ': - data += '_' - elif c != '"': - data += c - fmt, args = self.kprobes[name]['format'], self.kprobes[name]['args'] - arglist = dict() - # now process the args - for arg in sorted(args): - arglist[arg] = '' - m = re.match('.* '+arg+'=(?P.*) ', data); - if m: - arglist[arg] = m.group('arg') - else: - m = re.match('.* '+arg+'=(?P.*)', data); - if m: - arglist[arg] = m.group('arg') - out = fmt.format(**arglist) - out = out.replace(' ', '_').replace('"', '') - return out - def kprobeText(self, kname, kprobe): - name = fmt = func = kname - args = dict() - if 'name' in kprobe: - name = kprobe['name'] - if 'format' in kprobe: - fmt = kprobe['format'] - if 'func' in kprobe: - func = kprobe['func'] - if self.archargs in kprobe: - args = kprobe[self.archargs] - if 'args' in kprobe: - args = kprobe['args'] - if re.findall('{(?P[a-z,A-Z,0-9]*)}', func): - doError('Kprobe "%s" has format info in the function name "%s"' % (name, func)) - for arg in re.findall('{(?P[a-z,A-Z,0-9]*)}', fmt): - if arg not in args: - doError('Kprobe "%s" is missing argument "%s"' % (name, arg)) - val = 'p:%s_cal %s' % (name, func) - for i in sorted(args): - val += ' %s=%s' % (i, args[i]) - val += '\nr:%s_ret %s $retval\n' % (name, func) - return val - def addKprobes(self, output=False): - if len(sysvals.kprobes) < 1: - return - if output: - print(' kprobe functions in this kernel:') - # first test each kprobe - rejects = [] - # sort kprobes: trace, ub-dev, custom, dev - kpl = [[], [], [], []] - for name in sorted(self.kprobes): - res = self.colorText('YES', 32) - if not self.testKprobe(name, self.kprobes[name]): - res = self.colorText('NO') - rejects.append(name) - else: - if name in self.tracefuncs: - kpl[0].append(name) - elif name in self.dev_tracefuncs: - if 'ub' in self.dev_tracefuncs[name]: - kpl[1].append(name) - else: - kpl[3].append(name) - else: - kpl[2].append(name) - if output: - print(' %s: %s' % (name, res)) - kplist = kpl[0] + kpl[1] + kpl[2] + kpl[3] - # remove all failed ones from the list - for name in rejects: - self.kprobes.pop(name) - # set the kprobes all at once - self.fsetVal('', 'kprobe_events') - kprobeevents = '' - for kp in kplist: - kprobeevents += self.kprobeText(kp, self.kprobes[kp]) - self.fsetVal(kprobeevents, 'kprobe_events') - # verify that the kprobes were set as ordered - check = self.fgetVal('kprobe_events') - linesout = len(kprobeevents.split('\n')) - 1 - linesack = len(check.split('\n')) - 1 - if output: - res = '%d/%d' % (linesack, linesout) - if linesack < linesout: - res = self.colorText(res, 31) - else: - res = self.colorText(res, 32) - print(' working kprobe functions enabled: %s' % res) - self.fsetVal('1', 'events/kprobes/enable') - def testKprobe(self, kname, kprobe): - self.fsetVal('0', 'events/kprobes/enable') - kprobeevents = self.kprobeText(kname, kprobe) - if not kprobeevents: - return False - try: - self.fsetVal(kprobeevents, 'kprobe_events') - check = self.fgetVal('kprobe_events') - except: - return False - linesout = len(kprobeevents.split('\n')) - linesack = len(check.split('\n')) - if linesack < linesout: - return False - return True - def fsetVal(self, val, path, mode='w'): - file = self.tpath+path - if not os.path.exists(file): - return False - try: - fp = open(file, mode, 0) - fp.write(val) - fp.flush() - fp.close() - except: - pass - return True - def fgetVal(self, path): - file = self.tpath+path - res = '' - if not os.path.exists(file): - return res - try: - fp = open(file, 'r') - res = fp.read() - fp.close() - except: - pass - return res - def cleanupFtrace(self): - if(self.usecallgraph or self.usetraceevents): - self.fsetVal('0', 'events/kprobes/enable') - self.fsetVal('', 'kprobe_events') - def setupAllKprobes(self): - for name in self.tracefuncs: - self.defaultKprobe(name, self.tracefuncs[name]) - for name in self.dev_tracefuncs: - self.defaultKprobe(name, self.dev_tracefuncs[name]) - def isCallgraphFunc(self, name): - if len(self.tracefuncs) < 1 and self.suspendmode == 'command': - return True - for i in self.tracefuncs: - if 'func' in self.tracefuncs[i]: - f = self.tracefuncs[i]['func'] - else: - f = i - if name == f: - return True - return False - def initFtrace(self, testing=False): - print('INITIALIZING FTRACE...') - # turn trace off - self.fsetVal('0', 'tracing_on') - self.cleanupFtrace() - # set the trace clock to global - self.fsetVal('global', 'trace_clock') - # set trace buffer to a huge value - self.fsetVal('nop', 'current_tracer') - self.fsetVal('100000', 'buffer_size_kb') - # go no further if this is just a status check - if testing: - return - # initialize the callgraph trace - if(self.usecallgraph): - # set trace type - self.fsetVal('function_graph', 'current_tracer') - self.fsetVal('', 'set_ftrace_filter') - # set trace format options - self.fsetVal('print-parent', 'trace_options') - self.fsetVal('funcgraph-abstime', 'trace_options') - self.fsetVal('funcgraph-cpu', 'trace_options') - self.fsetVal('funcgraph-duration', 'trace_options') - self.fsetVal('funcgraph-proc', 'trace_options') - self.fsetVal('funcgraph-tail', 'trace_options') - self.fsetVal('nofuncgraph-overhead', 'trace_options') - self.fsetVal('context-info', 'trace_options') - self.fsetVal('graph-time', 'trace_options') - self.fsetVal('0', 'max_graph_depth') - cf = ['dpm_run_callback'] - if(self.usetraceeventsonly): - cf += ['dpm_prepare', 'dpm_complete'] - for fn in self.tracefuncs: - if 'func' in self.tracefuncs[fn]: - cf.append(self.tracefuncs[fn]['func']) - else: - cf.append(fn) - self.setFtraceFilterFunctions(cf) - # initialize the kprobe trace - elif self.usekprobes: - for name in self.tracefuncs: - self.defaultKprobe(name, self.tracefuncs[name]) - if self.usedevsrc: - for name in self.dev_tracefuncs: - self.defaultKprobe(name, self.dev_tracefuncs[name]) - print('INITIALIZING KPROBES...') - self.addKprobes(self.verbose) - if(self.usetraceevents): - # turn trace events on - events = iter(self.traceevents) - for e in events: - self.fsetVal('1', 'events/power/'+e+'/enable') - # clear the trace buffer - self.fsetVal('', 'trace') - def verifyFtrace(self): - # files needed for any trace data - files = ['buffer_size_kb', 'current_tracer', 'trace', 'trace_clock', - 'trace_marker', 'trace_options', 'tracing_on'] - # files needed for callgraph trace data - tp = self.tpath - if(self.usecallgraph): - files += [ - 'available_filter_functions', - 'set_ftrace_filter', - 'set_graph_function' - ] - for f in files: - if(os.path.exists(tp+f) == False): - return False - return True - def verifyKprobes(self): - # files needed for kprobes to work - files = ['kprobe_events', 'events'] - tp = self.tpath - for f in files: - if(os.path.exists(tp+f) == False): - return False - return True - def colorText(self, str, color=31): - if not self.ansi: - return str - return '\x1B[%d;40m%s\x1B[m' % (color, str) - -sysvals = SystemValues() - -# Class: DevProps -# Description: -# Simple class which holds property values collected -# for all the devices used in the timeline. -class DevProps: - syspath = '' - altname = '' - async = True - xtraclass = '' - xtrainfo = '' - def out(self, dev): - return '%s,%s,%d;' % (dev, self.altname, self.async) - def debug(self, dev): - print '%s:\n\taltname = %s\n\t async = %s' % (dev, self.altname, self.async) - def altName(self, dev): - if not self.altname or self.altname == dev: - return dev - return '%s [%s]' % (self.altname, dev) - def xtraClass(self): - if self.xtraclass: - return ' '+self.xtraclass - if not self.async: - return ' sync' - return '' - def xtraInfo(self): - if self.xtraclass: - return ' '+self.xtraclass - if self.async: - return ' async_device' - return ' sync_device' - -# Class: DeviceNode -# Description: -# A container used to create a device hierachy, with a single root node -# and a tree of child nodes. Used by Data.deviceTopology() -class DeviceNode: - name = '' - children = 0 - depth = 0 - def __init__(self, nodename, nodedepth): - self.name = nodename - self.children = [] - self.depth = nodedepth - -# Class: Data -# Description: -# The primary container for suspend/resume test data. There is one for -# each test run. The data is organized into a cronological hierarchy: -# Data.dmesg { -# phases { -# 10 sequential, non-overlapping phases of S/R -# contents: times for phase start/end, order/color data for html -# devlist { -# device callback or action list for this phase -# device { -# a single device callback or generic action -# contents: start/stop times, pid/cpu/driver info -# parents/children, html id for timeline/callgraph -# optionally includes an ftrace callgraph -# optionally includes dev/ps data -# } -# } -# } -# } -# -class Data: - dmesg = {} # root data structure - phases = [] # ordered list of phases - start = 0.0 # test start - end = 0.0 # test end - tSuspended = 0.0 # low-level suspend start - tResumed = 0.0 # low-level resume start - tKernSus = 0.0 # kernel level suspend start - tKernRes = 0.0 # kernel level resume end - tLow = 0.0 # time spent in low-level suspend (standby/freeze) - fwValid = False # is firmware data available - fwSuspend = 0 # time spent in firmware suspend - fwResume = 0 # time spent in firmware resume - dmesgtext = [] # dmesg text file in memory - pstl = 0 # process timeline - testnumber = 0 - idstr = '' - html_device_id = 0 - stamp = 0 - outfile = '' - devpids = [] - kerror = False - def __init__(self, num): - idchar = 'abcdefghij' - self.pstl = dict() - self.testnumber = num - self.idstr = idchar[num] - self.dmesgtext = [] - self.phases = [] - self.dmesg = { # fixed list of 10 phases - 'suspend_prepare': {'list': dict(), 'start': -1.0, 'end': -1.0, - 'row': 0, 'color': '#CCFFCC', 'order': 0}, - 'suspend': {'list': dict(), 'start': -1.0, 'end': -1.0, - 'row': 0, 'color': '#88FF88', 'order': 1}, - 'suspend_late': {'list': dict(), 'start': -1.0, 'end': -1.0, - 'row': 0, 'color': '#00AA00', 'order': 2}, - 'suspend_noirq': {'list': dict(), 'start': -1.0, 'end': -1.0, - 'row': 0, 'color': '#008888', 'order': 3}, - 'suspend_machine': {'list': dict(), 'start': -1.0, 'end': -1.0, - 'row': 0, 'color': '#0000FF', 'order': 4}, - 'resume_machine': {'list': dict(), 'start': -1.0, 'end': -1.0, - 'row': 0, 'color': '#FF0000', 'order': 5}, - 'resume_noirq': {'list': dict(), 'start': -1.0, 'end': -1.0, - 'row': 0, 'color': '#FF9900', 'order': 6}, - 'resume_early': {'list': dict(), 'start': -1.0, 'end': -1.0, - 'row': 0, 'color': '#FFCC00', 'order': 7}, - 'resume': {'list': dict(), 'start': -1.0, 'end': -1.0, - 'row': 0, 'color': '#FFFF88', 'order': 8}, - 'resume_complete': {'list': dict(), 'start': -1.0, 'end': -1.0, - 'row': 0, 'color': '#FFFFCC', 'order': 9} - } - self.phases = self.sortedPhases() - self.devicegroups = [] - for phase in self.phases: - self.devicegroups.append([phase]) - self.errorinfo = {'suspend':[],'resume':[]} - def extractErrorInfo(self, dmesg): - error = '' - tm = 0.0 - for i in range(len(dmesg)): - if 'Call Trace:' in dmesg[i]: - m = re.match('[ \t]*(\[ *)(?P[0-9\.]*)(\]) .*', dmesg[i]) - if not m: - continue - tm = float(m.group('ktime')) - if tm < self.start or tm > self.end: - continue - for j in range(i-10, i+1): - error += dmesg[j] - continue - if error: - m = re.match('[ \t]*\[ *[0-9\.]*\] \[\<[0-9a-fA-F]*\>\] .*', dmesg[i]) - if m: - error += dmesg[i] - else: - if tm < self.tSuspended: - dir = 'suspend' - else: - dir = 'resume' - error = error.replace('<', '<').replace('>', '>') - vprint('kernel error found in %s at %f' % (dir, tm)) - self.errorinfo[dir].append((tm, error)) - self.kerror = True - error = '' - def setStart(self, time): - self.start = time - def setEnd(self, time): - self.end = time - def isTraceEventOutsideDeviceCalls(self, pid, time): - for phase in self.phases: - list = self.dmesg[phase]['list'] - for dev in list: - d = list[dev] - if(d['pid'] == pid and time >= d['start'] and - time < d['end']): - return False - return True - def sourcePhase(self, start): - for phase in self.phases: - pend = self.dmesg[phase]['end'] - if start <= pend: - return phase - return 'resume_complete' - def sourceDevice(self, phaselist, start, end, pid, type): - tgtdev = '' - for phase in phaselist: - list = self.dmesg[phase]['list'] - for devname in list: - dev = list[devname] - # pid must match - if dev['pid'] != pid: - continue - devS = dev['start'] - devE = dev['end'] - if type == 'device': - # device target event is entirely inside the source boundary - if(start < devS or start >= devE or end <= devS or end > devE): - continue - elif type == 'thread': - # thread target event will expand the source boundary - if start < devS: - dev['start'] = start - if end > devE: - dev['end'] = end - tgtdev = dev - break - return tgtdev - def addDeviceFunctionCall(self, displayname, kprobename, proc, pid, start, end, cdata, rdata): - # try to place the call in a device - tgtdev = self.sourceDevice(self.phases, start, end, pid, 'device') - # calls with device pids that occur outside device bounds are dropped - # TODO: include these somehow - if not tgtdev and pid in self.devpids: - return False - # try to place the call in a thread - if not tgtdev: - tgtdev = self.sourceDevice(self.phases, start, end, pid, 'thread') - # create new thread blocks, expand as new calls are found - if not tgtdev: - if proc == '<...>': - threadname = 'kthread-%d' % (pid) - else: - threadname = '%s-%d' % (proc, pid) - tgtphase = self.sourcePhase(start) - self.newAction(tgtphase, threadname, pid, '', start, end, '', ' kth', '') - return self.addDeviceFunctionCall(displayname, kprobename, proc, pid, start, end, cdata, rdata) - # this should not happen - if not tgtdev: - vprint('[%f - %f] %s-%d %s %s %s' % \ - (start, end, proc, pid, kprobename, cdata, rdata)) - return False - # place the call data inside the src element of the tgtdev - if('src' not in tgtdev): - tgtdev['src'] = [] - dtf = sysvals.dev_tracefuncs - ubiquitous = False - if kprobename in dtf and 'ub' in dtf[kprobename]: - ubiquitous = True - title = cdata+' '+rdata - mstr = '\(.*\) *(?P.*) *\((?P.*)\+.* arg1=(?P.*)' - m = re.match(mstr, title) - if m: - c = m.group('caller') - a = m.group('args').strip() - r = m.group('ret') - if len(r) > 6: - r = '' - else: - r = 'ret=%s ' % r - if ubiquitous and c in dtf and 'ub' in dtf[c]: - return False - color = sysvals.kprobeColor(kprobename) - e = DevFunction(displayname, a, c, r, start, end, ubiquitous, proc, pid, color) - tgtdev['src'].append(e) - return True - def overflowDevices(self): - # get a list of devices that extend beyond the end of this test run - devlist = [] - for phase in self.phases: - list = self.dmesg[phase]['list'] - for devname in list: - dev = list[devname] - if dev['end'] > self.end: - devlist.append(dev) - return devlist - def mergeOverlapDevices(self, devlist): - # merge any devices that overlap devlist - for dev in devlist: - devname = dev['name'] - for phase in self.phases: - list = self.dmesg[phase]['list'] - if devname not in list: - continue - tdev = list[devname] - o = min(dev['end'], tdev['end']) - max(dev['start'], tdev['start']) - if o <= 0: - continue - dev['end'] = tdev['end'] - if 'src' not in dev or 'src' not in tdev: - continue - dev['src'] += tdev['src'] - del list[devname] - def usurpTouchingThread(self, name, dev): - # the caller test has priority of this thread, give it to him - for phase in self.phases: - list = self.dmesg[phase]['list'] - if name in list: - tdev = list[name] - if tdev['start'] - dev['end'] < 0.1: - dev['end'] = tdev['end'] - if 'src' not in dev: - dev['src'] = [] - if 'src' in tdev: - dev['src'] += tdev['src'] - del list[name] - break - def stitchTouchingThreads(self, testlist): - # merge any threads between tests that touch - for phase in self.phases: - list = self.dmesg[phase]['list'] - for devname in list: - dev = list[devname] - if 'htmlclass' not in dev or 'kth' not in dev['htmlclass']: - continue - for data in testlist: - data.usurpTouchingThread(devname, dev) - def optimizeDevSrc(self): - # merge any src call loops to reduce timeline size - for phase in self.phases: - list = self.dmesg[phase]['list'] - for dev in list: - if 'src' not in list[dev]: - continue - src = list[dev]['src'] - p = 0 - for e in sorted(src, key=lambda event: event.time): - if not p or not e.repeat(p): - p = e - continue - # e is another iteration of p, move it into p - p.end = e.end - p.length = p.end - p.time - p.count += 1 - src.remove(e) - def trimTimeVal(self, t, t0, dT, left): - if left: - if(t > t0): - if(t - dT < t0): - return t0 - return t - dT - else: - return t - else: - if(t < t0 + dT): - if(t > t0): - return t0 + dT - return t + dT - else: - return t - def trimTime(self, t0, dT, left): - self.tSuspended = self.trimTimeVal(self.tSuspended, t0, dT, left) - self.tResumed = self.trimTimeVal(self.tResumed, t0, dT, left) - self.start = self.trimTimeVal(self.start, t0, dT, left) - self.tKernSus = self.trimTimeVal(self.tKernSus, t0, dT, left) - self.tKernRes = self.trimTimeVal(self.tKernRes, t0, dT, left) - self.end = self.trimTimeVal(self.end, t0, dT, left) - for phase in self.phases: - p = self.dmesg[phase] - p['start'] = self.trimTimeVal(p['start'], t0, dT, left) - p['end'] = self.trimTimeVal(p['end'], t0, dT, left) - list = p['list'] - for name in list: - d = list[name] - d['start'] = self.trimTimeVal(d['start'], t0, dT, left) - d['end'] = self.trimTimeVal(d['end'], t0, dT, left) - if('ftrace' in d): - cg = d['ftrace'] - cg.start = self.trimTimeVal(cg.start, t0, dT, left) - cg.end = self.trimTimeVal(cg.end, t0, dT, left) - for line in cg.list: - line.time = self.trimTimeVal(line.time, t0, dT, left) - if('src' in d): - for e in d['src']: - e.time = self.trimTimeVal(e.time, t0, dT, left) - def normalizeTime(self, tZero): - # trim out any standby or freeze clock time - if(self.tSuspended != self.tResumed): - if(self.tResumed > tZero): - self.trimTime(self.tSuspended, \ - self.tResumed-self.tSuspended, True) - else: - self.trimTime(self.tSuspended, \ - self.tResumed-self.tSuspended, False) - def setPhase(self, phase, ktime, isbegin): - if(isbegin): - self.dmesg[phase]['start'] = ktime - else: - self.dmesg[phase]['end'] = ktime - def dmesgSortVal(self, phase): - return self.dmesg[phase]['order'] - def sortedPhases(self): - return sorted(self.dmesg, key=self.dmesgSortVal) - def sortedDevices(self, phase): - list = self.dmesg[phase]['list'] - slist = [] - tmp = dict() - for devname in list: - dev = list[devname] - tmp[dev['start']] = devname - for t in sorted(tmp): - slist.append(tmp[t]) - return slist - def fixupInitcalls(self, phase): - # if any calls never returned, clip them at system resume end - phaselist = self.dmesg[phase]['list'] - for devname in phaselist: - dev = phaselist[devname] - if(dev['end'] < 0): - for p in self.phases: - if self.dmesg[p]['end'] > dev['start']: - dev['end'] = self.dmesg[p]['end'] - break - vprint('%s (%s): callback didnt return' % (devname, phase)) - def deviceFilter(self, devicefilter): - for phase in self.phases: - list = self.dmesg[phase]['list'] - rmlist = [] - for name in list: - keep = False - for filter in devicefilter: - if filter in name or \ - ('drv' in list[name] and filter in list[name]['drv']): - keep = True - if not keep: - rmlist.append(name) - for name in rmlist: - del list[name] - def fixupInitcallsThatDidntReturn(self): - # if any calls never returned, clip them at system resume end - for phase in self.phases: - self.fixupInitcalls(phase) - def phaseOverlap(self, phases): - rmgroups = [] - newgroup = [] - for group in self.devicegroups: - for phase in phases: - if phase not in group: - continue - for p in group: - if p not in newgroup: - newgroup.append(p) - if group not in rmgroups: - rmgroups.append(group) - for group in rmgroups: - self.devicegroups.remove(group) - self.devicegroups.append(newgroup) - def newActionGlobal(self, name, start, end, pid=-1, color=''): - # which phase is this device callback or action in - targetphase = 'none' - htmlclass = '' - overlap = 0.0 - phases = [] - for phase in self.phases: - pstart = self.dmesg[phase]['start'] - pend = self.dmesg[phase]['end'] - # see if the action overlaps this phase - o = max(0, min(end, pend) - max(start, pstart)) - if o > 0: - phases.append(phase) - # set the target phase to the one that overlaps most - if o > overlap: - if overlap > 0 and phase == 'post_resume': - continue - targetphase = phase - overlap = o - # if no target phase was found, pin it to the edge - if targetphase == 'none': - p0start = self.dmesg[self.phases[0]]['start'] - if start <= p0start: - targetphase = self.phases[0] - else: - targetphase = self.phases[-1] - if pid == -2: - htmlclass = ' bg' - elif pid == -3: - htmlclass = ' ps' - if len(phases) > 1: - htmlclass = ' bg' - self.phaseOverlap(phases) - if targetphase in self.phases: - newname = self.newAction(targetphase, name, pid, '', start, end, '', htmlclass, color) - return (targetphase, newname) - return False - def newAction(self, phase, name, pid, parent, start, end, drv, htmlclass='', color=''): - # new device callback for a specific phase - self.html_device_id += 1 - devid = '%s%d' % (self.idstr, self.html_device_id) - list = self.dmesg[phase]['list'] - length = -1.0 - if(start >= 0 and end >= 0): - length = end - start - if pid == -2: - i = 2 - origname = name - while(name in list): - name = '%s[%d]' % (origname, i) - i += 1 - list[name] = {'name': name, 'start': start, 'end': end, 'pid': pid, - 'par': parent, 'length': length, 'row': 0, 'id': devid, 'drv': drv } - if htmlclass: - list[name]['htmlclass'] = htmlclass - if color: - list[name]['color'] = color - return name - def deviceChildren(self, devname, phase): - devlist = [] - list = self.dmesg[phase]['list'] - for child in list: - if(list[child]['par'] == devname): - devlist.append(child) - return devlist - def printDetails(self): - vprint('Timeline Details:') - vprint(' test start: %f' % self.start) - vprint('kernel suspend start: %f' % self.tKernSus) - for phase in self.phases: - dc = len(self.dmesg[phase]['list']) - vprint(' %16s: %f - %f (%d devices)' % (phase, \ - self.dmesg[phase]['start'], self.dmesg[phase]['end'], dc)) - vprint(' kernel resume end: %f' % self.tKernRes) - vprint(' test end: %f' % self.end) - def deviceChildrenAllPhases(self, devname): - devlist = [] - for phase in self.phases: - list = self.deviceChildren(devname, phase) - for dev in list: - if dev not in devlist: - devlist.append(dev) - return devlist - def masterTopology(self, name, list, depth): - node = DeviceNode(name, depth) - for cname in list: - # avoid recursions - if name == cname: - continue - clist = self.deviceChildrenAllPhases(cname) - cnode = self.masterTopology(cname, clist, depth+1) - node.children.append(cnode) - return node - def printTopology(self, node): - html = '' - if node.name: - info = '' - drv = '' - for phase in self.phases: - list = self.dmesg[phase]['list'] - if node.name in list: - s = list[node.name]['start'] - e = list[node.name]['end'] - if list[node.name]['drv']: - drv = ' {'+list[node.name]['drv']+'}' - info += ('

  • %s: %.3fms
    • ' % (phase, (e-s)*1000)) - html += '
  • '+node.name+drv+'' - if info: - html += '
      '+info+'
    ' - html += '
    • ' - if len(node.children) > 0: - html += '
      ' - for cnode in node.children: - html += self.printTopology(cnode) - html += '
    ' - return html - def rootDeviceList(self): - # list of devices graphed - real = [] - for phase in self.dmesg: - list = self.dmesg[phase]['list'] - for dev in list: - if list[dev]['pid'] >= 0 and dev not in real: - real.append(dev) - # list of top-most root devices - rootlist = [] - for phase in self.dmesg: - list = self.dmesg[phase]['list'] - for dev in list: - pdev = list[dev]['par'] - pid = list[dev]['pid'] - if(pid < 0 or re.match('[0-9]*-[0-9]*\.[0-9]*[\.0-9]*\:[\.0-9]*$', pdev)): - continue - if pdev and pdev not in real and pdev not in rootlist: - rootlist.append(pdev) - return rootlist - def deviceTopology(self): - rootlist = self.rootDeviceList() - master = self.masterTopology('', rootlist, 0) - return self.printTopology(master) - def selectTimelineDevices(self, widfmt, tTotal, mindevlen): - # only select devices that will actually show up in html - self.tdevlist = dict() - for phase in self.dmesg: - devlist = [] - list = self.dmesg[phase]['list'] - for dev in list: - length = (list[dev]['end'] - list[dev]['start']) * 1000 - width = widfmt % (((list[dev]['end']-list[dev]['start'])*100)/tTotal) - if width != '0.000000' and length >= mindevlen: - devlist.append(dev) - self.tdevlist[phase] = devlist - def addHorizontalDivider(self, devname, devend): - phase = 'suspend_prepare' - self.newAction(phase, devname, -2, '', \ - self.start, devend, '', ' sec', '') - if phase not in self.tdevlist: - self.tdevlist[phase] = [] - self.tdevlist[phase].append(devname) - d = DevItem(0, phase, self.dmesg[phase]['list'][devname]) - return d - def addProcessUsageEvent(self, name, times): - # get the start and end times for this process - maxC = 0 - tlast = 0 - start = -1 - end = -1 - for t in sorted(times): - if tlast == 0: - tlast = t - continue - if name in self.pstl[t]: - if start == -1 or tlast < start: - start = tlast - if end == -1 or t > end: - end = t - tlast = t - if start == -1 or end == -1: - return 0 - # add a new action for this process and get the object - out = self.newActionGlobal(name, start, end, -3) - if not out: - return 0 - phase, devname = out - dev = self.dmesg[phase]['list'][devname] - # get the cpu exec data - tlast = 0 - clast = 0 - cpuexec = dict() - for t in sorted(times): - if tlast == 0 or t <= start or t > end: - tlast = t - continue - list = self.pstl[t] - c = 0 - if name in list: - c = list[name] - if c > maxC: - maxC = c - if c != clast: - key = (tlast, t) - cpuexec[key] = c - tlast = t - clast = c - dev['cpuexec'] = cpuexec - return maxC - def createProcessUsageEvents(self): - # get an array of process names - proclist = [] - for t in self.pstl: - pslist = self.pstl[t] - for ps in pslist: - if ps not in proclist: - proclist.append(ps) - # get a list of data points for suspend and resume - tsus = [] - tres = [] - for t in sorted(self.pstl): - if t < self.tSuspended: - tsus.append(t) - else: - tres.append(t) - # process the events for suspend and resume - if len(proclist) > 0: - vprint('Process Execution:') - for ps in proclist: - c = self.addProcessUsageEvent(ps, tsus) - if c > 0: - vprint('%25s (sus): %d' % (ps, c)) - c = self.addProcessUsageEvent(ps, tres) - if c > 0: - vprint('%25s (res): %d' % (ps, c)) - -# Class: DevFunction -# Description: -# A container for kprobe function data we want in the dev timeline -class DevFunction: - row = 0 - count = 1 - def __init__(self, name, args, caller, ret, start, end, u, proc, pid, color): - self.name = name - self.args = args - self.caller = caller - self.ret = ret - self.time = start - self.length = end - start - self.end = end - self.ubiquitous = u - self.proc = proc - self.pid = pid - self.color = color - def title(self): - cnt = '' - if self.count > 1: - cnt = '(x%d)' % self.count - l = '%0.3fms' % (self.length * 1000) - if self.ubiquitous: - title = '%s(%s)%s <- %s, %s(%s)' % \ - (self.name, self.args, cnt, self.caller, self.ret, l) - else: - title = '%s(%s) %s%s(%s)' % (self.name, self.args, self.ret, cnt, l) - return title.replace('"', '') - def text(self): - if self.count > 1: - text = '%s(x%d)' % (self.name, self.count) - else: - text = self.name - return text - def repeat(self, tgt): - # is the tgt call just a repeat of this call (e.g. are we in a loop) - dt = self.time - tgt.end - # only combine calls if -all- attributes are identical - if tgt.caller == self.caller and \ - tgt.name == self.name and tgt.args == self.args and \ - tgt.proc == self.proc and tgt.pid == self.pid and \ - tgt.ret == self.ret and dt >= 0 and \ - dt <= sysvals.callloopmaxgap and \ - self.length < sysvals.callloopmaxlen: - return True - return False - -# Class: FTraceLine -# Description: -# A container for a single line of ftrace data. There are six basic types: -# callgraph line: -# call: " dpm_run_callback() {" -# return: " }" -# leaf: " dpm_run_callback();" -# trace event: -# tracing_mark_write: SUSPEND START or RESUME COMPLETE -# suspend_resume: phase or custom exec block data -# device_pm_callback: device callback info -class FTraceLine: - time = 0.0 - length = 0.0 - fcall = False - freturn = False - fevent = False - fkprobe = False - depth = 0 - name = '' - type = '' - def __init__(self, t, m='', d=''): - self.time = float(t) - if not m and not d: - return - # is this a trace event - if(d == 'traceevent' or re.match('^ *\/\* *(?P.*) \*\/ *$', m)): - if(d == 'traceevent'): - # nop format trace event - msg = m - else: - # function_graph format trace event - em = re.match('^ *\/\* *(?P.*) \*\/ *$', m) - msg = em.group('msg') - - emm = re.match('^(?P.*?): (?P.*)', msg) - if(emm): - self.name = emm.group('msg') - self.type = emm.group('call') - else: - self.name = msg - km = re.match('^(?P.*)_cal$', self.type) - if km: - self.fcall = True - self.fkprobe = True - self.type = km.group('n') - return - km = re.match('^(?P.*)_ret$', self.type) - if km: - self.freturn = True - self.fkprobe = True - self.type = km.group('n') - return - self.fevent = True - return - # convert the duration to seconds - if(d): - self.length = float(d)/1000000 - # the indentation determines the depth - match = re.match('^(?P *)(?P.*)$', m) - if(not match): - return - self.depth = self.getDepth(match.group('d')) - m = match.group('o') - # function return - if(m[0] == '}'): - self.freturn = True - if(len(m) > 1): - # includes comment with function name - match = re.match('^} *\/\* *(?P.*) *\*\/$', m) - if(match): - self.name = match.group('n').strip() - # function call - else: - self.fcall = True - # function call with children - if(m[-1] == '{'): - match = re.match('^(?P.*) *\(.*', m) - if(match): - self.name = match.group('n').strip() - # function call with no children (leaf) - elif(m[-1] == ';'): - self.freturn = True - match = re.match('^(?P.*) *\(.*', m) - if(match): - self.name = match.group('n').strip() - # something else (possibly a trace marker) - else: - self.name = m - def getDepth(self, str): - return len(str)/2 - def debugPrint(self, dev=''): - if(self.freturn and self.fcall): - print('%s -- %f (%02d): %s(); (%.3f us)' % (dev, self.time, \ - self.depth, self.name, self.length*1000000)) - elif(self.freturn): - print('%s -- %f (%02d): %s} (%.3f us)' % (dev, self.time, \ - self.depth, self.name, self.length*1000000)) - else: - print('%s -- %f (%02d): %s() { (%.3f us)' % (dev, self.time, \ - self.depth, self.name, self.length*1000000)) - def startMarker(self): - # Is this the starting line of a suspend? - if not self.fevent: - return False - if sysvals.usetracemarkers: - if(self.name == 'SUSPEND START'): - return True - return False - else: - if(self.type == 'suspend_resume' and - re.match('suspend_enter\[.*\] begin', self.name)): - return True - return False - def endMarker(self): - # Is this the ending line of a resume? - if not self.fevent: - return False - if sysvals.usetracemarkers: - if(self.name == 'RESUME COMPLETE'): - return True - return False - else: - if(self.type == 'suspend_resume' and - re.match('thaw_processes\[.*\] end', self.name)): - return True - return False - -# Class: FTraceCallGraph -# Description: -# A container for the ftrace callgraph of a single recursive function. -# This can be a dpm_run_callback, dpm_prepare, or dpm_complete callgraph -# Each instance is tied to a single device in a single phase, and is -# comprised of an ordered list of FTraceLine objects -class FTraceCallGraph: - start = -1.0 - end = -1.0 - list = [] - invalid = False - depth = 0 - pid = 0 - def __init__(self, pid): - self.start = -1.0 - self.end = -1.0 - self.list = [] - self.depth = 0 - self.pid = pid - def addLine(self, line, debug=False): - # if this is already invalid, just leave - if(self.invalid): - return False - # invalidate on too much data or bad depth - if(len(self.list) >= 1000000 or self.depth < 0): - self.invalidate(line) - return False - # compare current depth with this lines pre-call depth - prelinedep = line.depth - if(line.freturn and not line.fcall): - prelinedep += 1 - last = 0 - lasttime = line.time - virtualfname = 'execution_misalignment' - if len(self.list) > 0: - last = self.list[-1] - lasttime = last.time - # handle low misalignments by inserting returns - if prelinedep < self.depth: - if debug and last: - print '-------- task %d --------' % self.pid - last.debugPrint() - idx = 0 - # add return calls to get the depth down - while prelinedep < self.depth: - if debug: - print 'MISALIGN LOW (add returns): C%d - eC%d' % (self.depth, prelinedep) - self.depth -= 1 - if idx == 0 and last and last.fcall and not last.freturn: - # special case, turn last call into a leaf - last.depth = self.depth - last.freturn = True - last.length = line.time - last.time - if debug: - last.debugPrint() - else: - vline = FTraceLine(lasttime) - vline.depth = self.depth - vline.name = virtualfname - vline.freturn = True - self.list.append(vline) - if debug: - vline.debugPrint() - idx += 1 - if debug: - line.debugPrint() - print '' - # handle high misalignments by inserting calls - elif prelinedep > self.depth: - if debug and last: - print '-------- task %d --------' % self.pid - last.debugPrint() - idx = 0 - # add calls to get the depth up - while prelinedep > self.depth: - if debug: - print 'MISALIGN HIGH (add calls): C%d - eC%d' % (self.depth, prelinedep) - if idx == 0 and line.freturn and not line.fcall: - # special case, turn this return into a leaf - line.fcall = True - prelinedep -= 1 - else: - vline = FTraceLine(lasttime) - vline.depth = self.depth - vline.name = virtualfname - vline.fcall = True - if debug: - vline.debugPrint() - self.list.append(vline) - self.depth += 1 - if not last: - self.start = vline.time - idx += 1 - if debug: - line.debugPrint() - print '' - # process the call and set the new depth - if(line.fcall and not line.freturn): - self.depth += 1 - elif(line.freturn and not line.fcall): - self.depth -= 1 - if len(self.list) < 1: - self.start = line.time - self.list.append(line) - if(line.depth == 0 and line.freturn): - if(self.start < 0): - self.start = line.time - self.end = line.time - if line.fcall: - self.end += line.length - if self.list[0].name == virtualfname: - self.invalid = True - return True - return False - def invalidate(self, line): - if(len(self.list) > 0): - first = self.list[0] - self.list = [] - self.list.append(first) - self.invalid = True - id = 'task %s' % (self.pid) - window = '(%f - %f)' % (self.start, line.time) - if(self.depth < 0): - vprint('Too much data for '+id+\ - ' (buffer overflow), ignoring this callback') - else: - vprint('Too much data for '+id+\ - ' '+window+', ignoring this callback') - def slice(self, t0, tN): - minicg = FTraceCallGraph(0) - count = -1 - firstdepth = 0 - for l in self.list: - if(l.time < t0 or l.time > tN): - continue - if(count < 0): - if(not l.fcall or l.name == 'dev_driver_string'): - continue - firstdepth = l.depth - count = 0 - l.depth -= firstdepth - minicg.addLine(l) - if((count == 0 and l.freturn and l.fcall) or - (count > 0 and l.depth <= 0)): - break - count += 1 - return minicg - def repair(self, enddepth): - # bring the depth back to 0 with additional returns - fixed = False - last = self.list[-1] - for i in reversed(range(enddepth)): - t = FTraceLine(last.time) - t.depth = i - t.freturn = True - fixed = self.addLine(t) - if fixed: - self.end = last.time - return True - return False - def postProcess(self, debug=False): - stack = dict() - cnt = 0 - for l in self.list: - if(l.fcall and not l.freturn): - stack[l.depth] = l - cnt += 1 - elif(l.freturn and not l.fcall): - if(l.depth not in stack): - if debug: - print 'Post Process Error: Depth missing' - l.debugPrint() - return False - # transfer total time from return line to call line - stack[l.depth].length = l.length - stack.pop(l.depth) - l.length = 0 - cnt -= 1 - if(cnt == 0): - # trace caught the whole call tree - return True - elif(cnt < 0): - if debug: - print 'Post Process Error: Depth is less than 0' - return False - # trace ended before call tree finished - return self.repair(cnt) - def deviceMatch(self, pid, data): - found = False - # add the callgraph data to the device hierarchy - borderphase = { - 'dpm_prepare': 'suspend_prepare', - 'dpm_complete': 'resume_complete' - } - if(self.list[0].name in borderphase): - p = borderphase[self.list[0].name] - list = data.dmesg[p]['list'] - for devname in list: - dev = list[devname] - if(pid == dev['pid'] and - self.start <= dev['start'] and - self.end >= dev['end']): - dev['ftrace'] = self.slice(dev['start'], dev['end']) - found = True - return found - for p in data.phases: - if(data.dmesg[p]['start'] <= self.start and - self.start <= data.dmesg[p]['end']): - list = data.dmesg[p]['list'] - for devname in list: - dev = list[devname] - if(pid == dev['pid'] and - self.start <= dev['start'] and - self.end >= dev['end']): - dev['ftrace'] = self - found = True - break - break - return found - def newActionFromFunction(self, data): - name = self.list[0].name - if name in ['dpm_run_callback', 'dpm_prepare', 'dpm_complete']: - return - fs = self.start - fe = self.end - if fs < data.start or fe > data.end: - return - phase = '' - for p in data.phases: - if(data.dmesg[p]['start'] <= self.start and - self.start < data.dmesg[p]['end']): - phase = p - break - if not phase: - return - out = data.newActionGlobal(name, fs, fe, -2) - if out: - phase, myname = out - data.dmesg[phase]['list'][myname]['ftrace'] = self - def debugPrint(self): - print('[%f - %f] %s (%d)') % (self.start, self.end, self.list[0].name, self.pid) - for l in self.list: - if(l.freturn and l.fcall): - print('%f (%02d): %s(); (%.3f us)' % (l.time, \ - l.depth, l.name, l.length*1000000)) - elif(l.freturn): - print('%f (%02d): %s} (%.3f us)' % (l.time, \ - l.depth, l.name, l.length*1000000)) - else: - print('%f (%02d): %s() { (%.3f us)' % (l.time, \ - l.depth, l.name, l.length*1000000)) - print(' ') - -class DevItem: - def __init__(self, test, phase, dev): - self.test = test - self.phase = phase - self.dev = dev - def isa(self, cls): - if 'htmlclass' in self.dev and cls in self.dev['htmlclass']: - return True - return False - -# Class: Timeline -# Description: -# A container for a device timeline which calculates -# all the html properties to display it correctly -class Timeline: - html = {} - height = 0 # total timeline height - scaleH = 20 # timescale (top) row height - rowH = 30 # device row height - bodyH = 0 # body height - rows = 0 # total timeline rows - rowlines = dict() - rowheight = dict() - def __init__(self, rowheight, scaleheight): - self.rowH = rowheight - self.scaleH = scaleheight - self.html = { - 'header': '', - 'timeline': '', - 'legend': '', - } - # Function: getDeviceRows - # Description: - # determine how may rows the device funcs will take - # Arguments: - # rawlist: the list of devices/actions for a single phase - # Output: - # The total number of rows needed to display this phase of the timeline - def getDeviceRows(self, rawlist): - # clear all rows and set them to undefined - sortdict = dict() - for item in rawlist: - item.row = -1 - sortdict[item] = item.length - sortlist = sorted(sortdict, key=sortdict.get, reverse=True) - remaining = len(sortlist) - rowdata = dict() - row = 1 - # try to pack each row with as many ranges as possible - while(remaining > 0): - if(row not in rowdata): - rowdata[row] = [] - for i in sortlist: - if(i.row >= 0): - continue - s = i.time - e = i.time + i.length - valid = True - for ritem in rowdata[row]: - rs = ritem.time - re = ritem.time + ritem.length - if(not (((s <= rs) and (e <= rs)) or - ((s >= re) and (e >= re)))): - valid = False - break - if(valid): - rowdata[row].append(i) - i.row = row - remaining -= 1 - row += 1 - return row - # Function: getPhaseRows - # Description: - # Organize the timeline entries into the smallest - # number of rows possible, with no entry overlapping - # Arguments: - # devlist: the list of devices/actions in a group of contiguous phases - # Output: - # The total number of rows needed to display this phase of the timeline - def getPhaseRows(self, devlist, row=0): - # clear all rows and set them to undefined - remaining = len(devlist) - rowdata = dict() - sortdict = dict() - myphases = [] - # initialize all device rows to -1 and calculate devrows - for item in devlist: - dev = item.dev - tp = (item.test, item.phase) - if tp not in myphases: - myphases.append(tp) - dev['row'] = -1 - # sort by length 1st, then name 2nd - sortdict[item] = (float(dev['end']) - float(dev['start']), item.dev['name']) - if 'src' in dev: - dev['devrows'] = self.getDeviceRows(dev['src']) - # sort the devlist by length so that large items graph on top - sortlist = sorted(sortdict, key=sortdict.get, reverse=True) - orderedlist = [] - for item in sortlist: - if item.dev['pid'] == -2: - orderedlist.append(item) - for item in sortlist: - if item not in orderedlist: - orderedlist.append(item) - # try to pack each row with as many devices as possible - while(remaining > 0): - rowheight = 1 - if(row not in rowdata): - rowdata[row] = [] - for item in orderedlist: - dev = item.dev - if(dev['row'] < 0): - s = dev['start'] - e = dev['end'] - valid = True - for ritem in rowdata[row]: - rs = ritem.dev['start'] - re = ritem.dev['end'] - if(not (((s <= rs) and (e <= rs)) or - ((s >= re) and (e >= re)))): - valid = False - break - if(valid): - rowdata[row].append(item) - dev['row'] = row - remaining -= 1 - if 'devrows' in dev and dev['devrows'] > rowheight: - rowheight = dev['devrows'] - for t, p in myphases: - if t not in self.rowlines or t not in self.rowheight: - self.rowlines[t] = dict() - self.rowheight[t] = dict() - if p not in self.rowlines[t] or p not in self.rowheight[t]: - self.rowlines[t][p] = dict() - self.rowheight[t][p] = dict() - rh = self.rowH - # section headers should use a different row height - if len(rowdata[row]) == 1 and \ - 'htmlclass' in rowdata[row][0].dev and \ - 'sec' in rowdata[row][0].dev['htmlclass']: - rh = 15 - self.rowlines[t][p][row] = rowheight - self.rowheight[t][p][row] = rowheight * rh - row += 1 - if(row > self.rows): - self.rows = int(row) - return row - def phaseRowHeight(self, test, phase, row): - return self.rowheight[test][phase][row] - def phaseRowTop(self, test, phase, row): - top = 0 - for i in sorted(self.rowheight[test][phase]): - if i >= row: - break - top += self.rowheight[test][phase][i] - return top - # Function: calcTotalRows - # Description: - # Calculate the heights and offsets for the header and rows - def calcTotalRows(self): - maxrows = 0 - standardphases = [] - for t in self.rowlines: - for p in self.rowlines[t]: - total = 0 - for i in sorted(self.rowlines[t][p]): - total += self.rowlines[t][p][i] - if total > maxrows: - maxrows = total - if total == len(self.rowlines[t][p]): - standardphases.append((t, p)) - self.height = self.scaleH + (maxrows*self.rowH) - self.bodyH = self.height - self.scaleH - # if there is 1 line per row, draw them the standard way - for t, p in standardphases: - for i in sorted(self.rowheight[t][p]): - self.rowheight[t][p][i] = self.bodyH/len(self.rowlines[t][p]) - # Function: createTimeScale - # Description: - # Create the timescale for a timeline block - # Arguments: - # m0: start time (mode begin) - # mMax: end time (mode end) - # tTotal: total timeline time - # mode: suspend or resume - # Output: - # The html code needed to display the time scale - def createTimeScale(self, m0, mMax, tTotal, mode): - timescale = '
    {1}
    \n' - rline = '
    Resume
    \n' - output = '
    \n' - # set scale for timeline - mTotal = mMax - m0 - tS = 0.1 - if(tTotal <= 0): - return output+'
    \n' - if(tTotal > 4): - tS = 1 - divTotal = int(mTotal/tS) + 1 - divEdge = (mTotal - tS*(divTotal-1))*100/mTotal - for i in range(divTotal): - htmlline = '' - if(mode == 'resume'): - pos = '%0.3f' % (100 - ((float(i)*tS*100)/mTotal)) - val = '%0.fms' % (float(i)*tS*1000) - htmlline = timescale.format(pos, val) - if(i == 0): - htmlline = rline - else: - pos = '%0.3f' % (100 - ((float(i)*tS*100)/mTotal) - divEdge) - val = '%0.fms' % (float(i-divTotal+1)*tS*1000) - if(i == divTotal - 1): - val = 'Suspend' - htmlline = timescale.format(pos, val) - output += htmlline - output += '\n' - return output - -# Class: TestProps -# Description: -# A list of values describing the properties of these test runs -class TestProps: - stamp = '' - S0i3 = False - fwdata = [] - ftrace_line_fmt_fg = \ - '^ *(?P