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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 04:29:00 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 04:29:00 +0400 |
| commit | 4b9f12a3779c548b68bc9af7d94030868ad3aa1b (patch) | |
| tree | e9f17f0f37313b2b09a79a66e4b19f8f1bb1b9e6 /arch | |
| parent | b30f3ae50cd03ef2ff433a5030fbf88dd8323528 (diff) | |
| download | linux-4b9f12a3779c548b68bc9af7d94030868ad3aa1b.tar.xz | |
x86/oprofile/nmi_int: add Nehalem to list of ppro cores
..otherwise oprofile will fall back on that poor timer interrupt.
Also replace the unreadable chain of if-statements with a "switch()"
statement instead. It generates better code, and is a lot clearer.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/oprofile/nmi_int.c | 36 |
1 files changed, 25 insertions, 11 deletions
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c index 7f3329b55d2e..3f90289410e6 100644 --- a/arch/x86/oprofile/nmi_int.c +++ b/arch/x86/oprofile/nmi_int.c @@ -369,20 +369,34 @@ static int __init ppro_init(char **cpu_type) { __u8 cpu_model = boot_cpu_data.x86_model; - if (cpu_model == 14) + switch (cpu_model) { + case 0 ... 2: + *cpu_type = "i386/ppro"; + break; + case 3 ... 5: + *cpu_type = "i386/pii"; + break; + case 6 ... 8: + *cpu_type = "i386/piii"; + break; + case 9: + *cpu_type = "i386/p6_mobile"; + break; + case 10 ... 13: + *cpu_type = "i386/p6"; + break; + case 14: *cpu_type = "i386/core"; - else if (cpu_model == 15 || cpu_model == 23) + break; + case 15: case 23: + *cpu_type = "i386/core_2"; + break; + case 26: *cpu_type = "i386/core_2"; - else if (cpu_model > 0xd) + break; + default: + /* Unknown */ return 0; - else if (cpu_model == 9) { - *cpu_type = "i386/p6_mobile"; - } else if (cpu_model > 5) { - *cpu_type = "i386/piii"; - } else if (cpu_model > 2) { - *cpu_type = "i386/pii"; - } else { - *cpu_type = "i386/ppro"; } model = &op_ppro_spec; |