summaryrefslogtreecommitdiff
path: root/lib/locking-selftest.c
diff options
context:
space:
mode:
authorTakashi Iwai <tiwai@suse.de>2017-08-02 18:11:45 +0300
committerTakashi Iwai <tiwai@suse.de>2017-08-02 18:11:45 +0300
commit5ef26e966d3fd105ad9a7e8e8f6d12c7fbd4c03d (patch)
treedd5c2ce3daab2e398ab8c0fb852587b647131568 /lib/locking-selftest.c
parent3f3c371421e601fa93b6cb7fb52da9ad59ec90b4 (diff)
parent60668a2dcafcf8aad0860f5a5c93eb2d7438052e (diff)
downloadlinux-5ef26e966d3fd105ad9a7e8e8f6d12c7fbd4c03d.tar.xz
Merge tag 'asoc-fix-v4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v4.13 Quite a few fixes here that have been sent since the merge window, the biggest one is the fix from Tony for some confusion with the device property API which was causing issues with the of-graph card. This is fixed with some changes in the graph API itself as it seemed very likely to be error prone.
Diffstat (limited to 'lib/locking-selftest.c')
-rw-r--r--lib/locking-selftest.c133
1 files changed, 105 insertions, 28 deletions
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c
index f3a217ea0388..6f2b135dc5e8 100644
--- a/lib/locking-selftest.c
+++ b/lib/locking-selftest.c
@@ -21,6 +21,7 @@
#include <linux/interrupt.h>
#include <linux/debug_locks.h>
#include <linux/irqflags.h>
+#include <linux/rtmutex.h>
/*
* Change this to 1 if you want to see the failure printouts:
@@ -46,6 +47,7 @@ __setup("debug_locks_verbose=", setup_debug_locks_verbose);
#define LOCKTYPE_MUTEX 0x4
#define LOCKTYPE_RWSEM 0x8
#define LOCKTYPE_WW 0x10
+#define LOCKTYPE_RTMUTEX 0x20
static struct ww_acquire_ctx t, t2;
static struct ww_mutex o, o2, o3;
@@ -74,6 +76,15 @@ static DECLARE_RWSEM(rwsem_B);
static DECLARE_RWSEM(rwsem_C);
static DECLARE_RWSEM(rwsem_D);
+#ifdef CONFIG_RT_MUTEXES
+
+static DEFINE_RT_MUTEX(rtmutex_A);
+static DEFINE_RT_MUTEX(rtmutex_B);
+static DEFINE_RT_MUTEX(rtmutex_C);
+static DEFINE_RT_MUTEX(rtmutex_D);
+
+#endif
+
/*
* Locks that we initialize dynamically as well so that
* e.g. X1 and X2 becomes two instances of the same class,
@@ -108,6 +119,17 @@ static DECLARE_RWSEM(rwsem_Y2);
static DECLARE_RWSEM(rwsem_Z1);
static DECLARE_RWSEM(rwsem_Z2);
+#ifdef CONFIG_RT_MUTEXES
+
+static DEFINE_RT_MUTEX(rtmutex_X1);
+static DEFINE_RT_MUTEX(rtmutex_X2);
+static DEFINE_RT_MUTEX(rtmutex_Y1);
+static DEFINE_RT_MUTEX(rtmutex_Y2);
+static DEFINE_RT_MUTEX(rtmutex_Z1);
+static DEFINE_RT_MUTEX(rtmutex_Z2);
+
+#endif
+
/*
* non-inlined runtime initializers, to let separate locks share
* the same lock-class:
@@ -129,6 +151,17 @@ INIT_CLASS_FUNC(Z)
static void init_shared_classes(void)
{
+#ifdef CONFIG_RT_MUTEXES
+ static struct lock_class_key rt_X, rt_Y, rt_Z;
+
+ __rt_mutex_init(&rtmutex_X1, __func__, &rt_X);
+ __rt_mutex_init(&rtmutex_X2, __func__, &rt_X);
+ __rt_mutex_init(&rtmutex_Y1, __func__, &rt_Y);
+ __rt_mutex_init(&rtmutex_Y2, __func__, &rt_Y);
+ __rt_mutex_init(&rtmutex_Z1, __func__, &rt_Z);
+ __rt_mutex_init(&rtmutex_Z2, __func__, &rt_Z);
+#endif
+
init_class_X(&lock_X1, &rwlock_X1, &mutex_X1, &rwsem_X1);
init_class_X(&lock_X2, &rwlock_X2, &mutex_X2, &rwsem_X2);
@@ -193,6 +226,10 @@ static void init_shared_classes(void)
#define MU(x) mutex_unlock(&mutex_##x)
#define MI(x) mutex_init(&mutex_##x)
+#define RTL(x) rt_mutex_lock(&rtmutex_##x)
+#define RTU(x) rt_mutex_unlock(&rtmutex_##x)
+#define RTI(x) rt_mutex_init(&rtmutex_##x)
+
#define WSL(x) down_write(&rwsem_##x)
#define WSU(x) up_write(&rwsem_##x)
@@ -264,6 +301,11 @@ GENERATE_TESTCASE(AA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(AA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(AA_rtmutex);
+#endif
+
#undef E
/*
@@ -345,6 +387,11 @@ GENERATE_TESTCASE(ABBA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABBA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABBA_rtmutex);
+#endif
+
#undef E
/*
@@ -373,6 +420,11 @@ GENERATE_TESTCASE(ABBCCA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABBCCA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABBCCA_rtmutex);
+#endif
+
#undef E
/*
@@ -401,6 +453,11 @@ GENERATE_TESTCASE(ABCABC_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABCABC_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABCABC_rtmutex);
+#endif
+
#undef E
/*
@@ -430,6 +487,11 @@ GENERATE_TESTCASE(ABBCCDDA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABBCCDDA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABBCCDDA_rtmutex);
+#endif
+
#undef E
/*
@@ -458,6 +520,11 @@ GENERATE_TESTCASE(ABCDBDDA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABCDBDDA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABCDBDDA_rtmutex);
+#endif
+
#undef E
/*
@@ -486,6 +553,11 @@ GENERATE_TESTCASE(ABCDBCDA_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(ABCDBCDA_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(ABCDBCDA_rtmutex);
+#endif
+
#undef E
/*
@@ -513,33 +585,10 @@ GENERATE_TESTCASE(double_unlock_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(double_unlock_rsem)
-#undef E
-
-/*
- * Bad unlock ordering:
- */
-#define E() \
- \
- LOCK(A); \
- LOCK(B); \
- UNLOCK(A); /* fail */ \
- UNLOCK(B);
-
-/*
- * 6 testcases:
- */
-#include "locking-selftest-spin.h"
-GENERATE_TESTCASE(bad_unlock_order_spin)
-#include "locking-selftest-wlock.h"
-GENERATE_TESTCASE(bad_unlock_order_wlock)
-#include "locking-selftest-rlock.h"
-GENERATE_TESTCASE(bad_unlock_order_rlock)
-#include "locking-selftest-mutex.h"
-GENERATE_TESTCASE(bad_unlock_order_mutex)
-#include "locking-selftest-wsem.h"
-GENERATE_TESTCASE(bad_unlock_order_wsem)
-#include "locking-selftest-rsem.h"
-GENERATE_TESTCASE(bad_unlock_order_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(double_unlock_rtmutex);
+#endif
#undef E
@@ -567,6 +616,11 @@ GENERATE_TESTCASE(init_held_wsem)
#include "locking-selftest-rsem.h"
GENERATE_TESTCASE(init_held_rsem)
+#ifdef CONFIG_RT_MUTEXES
+#include "locking-selftest-rtmutex.h"
+GENERATE_TESTCASE(init_held_rtmutex);
+#endif
+
#undef E
/*
@@ -916,6 +970,9 @@ GENERATE_PERMUTATIONS_3_EVENTS(irq_read_recursion_soft)
# define I_MUTEX(x) lockdep_reset_lock(&mutex_##x.dep_map)
# define I_RWSEM(x) lockdep_reset_lock(&rwsem_##x.dep_map)
# define I_WW(x) lockdep_reset_lock(&x.dep_map)
+#ifdef CONFIG_RT_MUTEXES
+# define I_RTMUTEX(x) lockdep_reset_lock(&rtmutex_##x.dep_map)
+#endif
#else
# define I_SPINLOCK(x)
# define I_RWLOCK(x)
@@ -924,12 +981,23 @@ GENERATE_PERMUTATIONS_3_EVENTS(irq_read_recursion_soft)
# define I_WW(x)
#endif
+#ifndef I_RTMUTEX
+# define I_RTMUTEX(x)
+#endif
+
+#ifdef CONFIG_RT_MUTEXES
+#define I2_RTMUTEX(x) rt_mutex_init(&rtmutex_##x)
+#else
+#define I2_RTMUTEX(x)
+#endif
+
#define I1(x) \
do { \
I_SPINLOCK(x); \
I_RWLOCK(x); \
I_MUTEX(x); \
I_RWSEM(x); \
+ I_RTMUTEX(x); \
} while (0)
#define I2(x) \
@@ -938,6 +1006,7 @@ GENERATE_PERMUTATIONS_3_EVENTS(irq_read_recursion_soft)
rwlock_init(&rwlock_##x); \
mutex_init(&mutex_##x); \
init_rwsem(&rwsem_##x); \
+ I2_RTMUTEX(x); \
} while (0)
static void reset_locks(void)
@@ -1013,6 +1082,12 @@ static void dotest(void (*testcase_fn)(void), int expected, int lockclass_mask)
reset_locks();
}
+#ifdef CONFIG_RT_MUTEXES
+#define dotest_rt(fn, e, m) dotest((fn), (e), (m))
+#else
+#define dotest_rt(fn, e, m)
+#endif
+
static inline void print_testname(const char *testname)
{
printk("%33s:", testname);
@@ -1050,6 +1125,7 @@ static inline void print_testname(const char *testname)
dotest(name##_mutex, FAILURE, LOCKTYPE_MUTEX); \
dotest(name##_wsem, FAILURE, LOCKTYPE_RWSEM); \
dotest(name##_rsem, FAILURE, LOCKTYPE_RWSEM); \
+ dotest_rt(name##_rtmutex, FAILURE, LOCKTYPE_RTMUTEX); \
pr_cont("\n");
#define DO_TESTCASE_6_SUCCESS(desc, name) \
@@ -1060,6 +1136,7 @@ static inline void print_testname(const char *testname)
dotest(name##_mutex, SUCCESS, LOCKTYPE_MUTEX); \
dotest(name##_wsem, SUCCESS, LOCKTYPE_RWSEM); \
dotest(name##_rsem, SUCCESS, LOCKTYPE_RWSEM); \
+ dotest_rt(name##_rtmutex, SUCCESS, LOCKTYPE_RTMUTEX); \
pr_cont("\n");
/*
@@ -1073,6 +1150,7 @@ static inline void print_testname(const char *testname)
dotest(name##_mutex, FAILURE, LOCKTYPE_MUTEX); \
dotest(name##_wsem, FAILURE, LOCKTYPE_RWSEM); \
dotest(name##_rsem, FAILURE, LOCKTYPE_RWSEM); \
+ dotest_rt(name##_rtmutex, FAILURE, LOCKTYPE_RTMUTEX); \
pr_cont("\n");
#define DO_TESTCASE_2I(desc, name, nr) \
@@ -1825,7 +1903,6 @@ void locking_selftest(void)
DO_TESTCASE_6R("A-B-C-D-B-C-D-A deadlock", ABCDBCDA);
DO_TESTCASE_6("double unlock", double_unlock);
DO_TESTCASE_6("initialize held", init_held);
- DO_TESTCASE_6_SUCCESS("bad unlock order", bad_unlock_order);
printk(" --------------------------------------------------------------------------\n");
print_testname("recursive read-lock");