[RFC PATCH] perf/x86/rapl: Add Hygon Fam18h RAPL support

From: Pu Wen
Date: Mon Jul 06 2020 - 06:12:55 EST


Hygon Family 18h(Dhyana) support RAPL in bit 14 of CPUID 0x80000007 EDX,
and has MSRs RAPL_PWR_UNIT/CORE_ENERGY_STAT/PKG_ENERGY_STAT. So add Hygon
Dhyana Family 18h support for RAPL.

The output is available via the energy-pkg pseudo event:
$ perf stat -a -I 1000 --per-socket -e power/energy-pkg/

Signed-off-by: Pu Wen <puwen@xxxxxxxx>
---
arch/x86/events/rapl.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/x86/events/rapl.c b/arch/x86/events/rapl.c
index 0f2bf59f4354..18c69d84b031 100644
--- a/arch/x86/events/rapl.c
+++ b/arch/x86/events/rapl.c
@@ -788,6 +788,7 @@ static const struct x86_cpu_id rapl_model_match[] __initconst = {
X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE_L, &model_skl),
X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE, &model_skl),
X86_MATCH_VENDOR_FAM(AMD, 0x17, &model_amd_fam17h),
+ X86_MATCH_VENDOR_FAM(HYGON, 0x18, &model_amd_fam17h),
{},
};
MODULE_DEVICE_TABLE(x86cpu, rapl_model_match);
--
2.23.0