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| author | Linus Walleij <linus.walleij@linaro.org> | 2015-12-21 09:36:21 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2015-12-21 09:36:21 +0100 |
| commit | 0529357f102b96f68bc199f858d1c3b07f4b674c (patch) | |
| tree | eaa047952a768099e00a5245afa0d84799df6990 /arch/arm64/include/asm/hw_breakpoint.h | |
| parent | a9f1a3e4c1c7dc82711bc22dc52c7b0d6912ed56 (diff) | |
| parent | 4ef7675344d687a0ef5b0d7c0cee12da005870c0 (diff) | |
Merge tag 'v4.4-rc6' into devel
Linux 4.4-rc6
Diffstat (limited to 'arch/arm64/include/asm/hw_breakpoint.h')
| -rw-r--r-- | arch/arm64/include/asm/hw_breakpoint.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/hw_breakpoint.h b/arch/arm64/include/asm/hw_breakpoint.h index e54415ec6935..9732908bfc8a 100644 --- a/arch/arm64/include/asm/hw_breakpoint.h +++ b/arch/arm64/include/asm/hw_breakpoint.h @@ -138,16 +138,18 @@ extern struct pmu perf_ops_bp; /* Determine number of BRP registers available. */ static inline int get_num_brps(void) { + u64 dfr0 = read_system_reg(SYS_ID_AA64DFR0_EL1); return 1 + - cpuid_feature_extract_field(read_system_reg(SYS_ID_AA64DFR0_EL1), + cpuid_feature_extract_unsigned_field(dfr0, ID_AA64DFR0_BRPS_SHIFT); } /* Determine number of WRP registers available. */ static inline int get_num_wrps(void) { + u64 dfr0 = read_system_reg(SYS_ID_AA64DFR0_EL1); return 1 + - cpuid_feature_extract_field(read_system_reg(SYS_ID_AA64DFR0_EL1), + cpuid_feature_extract_unsigned_field(dfr0, ID_AA64DFR0_WRPS_SHIFT); } |