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| author | Al Cooper <alcooperx@gmail.com> | 2012-07-14 00:44:51 +0400 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2012-10-11 13:04:34 +0400 |
| commit | da4b62cd6762ce327f660c6e45c8d5a739197159 (patch) | |
| tree | 7cbb0b1ce047c514f92da5ef382ca0bc6002cf21 /arch/mips/include/asm/cpu-features.h | |
| parent | c5600b2dd9fc7318feddf69f127ca793437c714d (diff) | |
| download | linux-da4b62cd6762ce327f660c6e45c8d5a739197159.tar.xz | |
MIPS: perf: Add cpu feature bit for PCI (performance counter interrupt)
The PCI (Program Counter Interrupt) bit in the "cause" register
is mandatory for MIPS32R2 cores, but has also been added to some R1
cores (BMIPS5000). This change adds a cpu feature bit to make it
easier to check for and use this feature.
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4106/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/cpu-features.h')
| -rw-r--r-- | arch/mips/include/asm/cpu-features.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index 63002a240c73..089125a6ae6a 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -252,4 +252,8 @@ #define cpu_hwrena_impl_bits 0 #endif +#ifndef cpu_has_perf_cntr_intr_bit +#define cpu_has_perf_cntr_intr_bit (cpu_data[0].options & MIPS_CPU_PCI) +#endif + #endif /* __ASM_CPU_FEATURES_H */ |