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| author |   Pu Wen <puwen@hygon.cn> | 2018-09-23 17:34:47 +0800 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2018-09-27 18:28:57 +0200 |
| commit | 6d0ef316b9f8ea03fa867debda70b2f11a0b9736 (patch) | |
| tree | fedc78b52d0dd05ba9183c9c83ece2216d408aec /arch/x86/kernel/cpu/perfctr-watchdog.c | |
| parent | x86/smpboot: Do not use BSP INIT delay and MWAIT to idle on Dhyana (diff) | |
| download | linux-dev-6d0ef316b9f8ea03fa867debda70b2f11a0b9736.tar.xz linux-dev-6d0ef316b9f8ea03fa867debda70b2f11a0b9736.zip | |
x86/events: Add Hygon Dhyana support to PMU infrastructure
The PMU architecture for the Hygon Dhyana CPU is similar to the AMD
Family 17h one. To support it, call amd_pmu_init() to share the AMD PMU
initialization flow, and change the PMU name to "HYGON".
The Hygon Dhyana CPU supports both legacy and extension PMC MSRs (perf
counter registers and event selection registers), so add Hygon Dhyana
support in the similar way as AMD does.
Signed-off-by: Pu Wen <puwen@hygon.cn>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Cc: tglx@linutronix.de
Cc: mingo@redhat.com
Cc: hpa@zytor.com
Cc: x86@kernel.org
Cc: thomas.lendacky@amd.com
Link: https://lkml.kernel.org/r/9d93ed54a975f33ef7247e0967960f4ce5d3d990.1537533369.git.puwen@hygon.cn
Diffstat (limited to 'arch/x86/kernel/cpu/perfctr-watchdog.c')
| -rw-r--r-- | arch/x86/kernel/cpu/perfctr-watchdog.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c index d389083330c5..9556930cd8c1 100644 --- a/arch/x86/kernel/cpu/perfctr-watchdog.c +++ b/arch/x86/kernel/cpu/perfctr-watchdog.c @@ -46,6 +46,7 @@ static inline unsigned int nmi_perfctr_msr_to_bit(unsigned int msr) { /* returns the bit offset of the performance counter register */ switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_HYGON: case X86_VENDOR_AMD: if (msr >= MSR_F15H_PERF_CTR) return (msr - MSR_F15H_PERF_CTR) >> 1; @@ -74,6 +75,7 @@ static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr) { /* returns the bit offset of the event selection register */ switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_HYGON: case X86_VENDOR_AMD: if (msr >= MSR_F15H_PERF_CTL) return (msr - MSR_F15H_PERF_CTL) >> 1; |