linux-kernel - [RFC PATCH RESEND] perf/x86/rapl: Add Hygon Fam18h RAPL support

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Message-ID: <20200720082205.1307-1-puwen@hygon.cn>
Date:   Mon, 20 Jul 2020 16:22:05 +0800
From:   Pu Wen <puwen@...on.cn>
To:     <linux-kernel@...r.kernel.org>
CC:     <peterz@...radead.org>, <mingo@...nel.org>, <jolsa@...hat.com>,
        <bp@...en8.de>, <eranian@...gle.com>, Pu Wen <puwen@...on.cn>
Subject: [RFC PATCH RESEND] perf/x86/rapl: Add Hygon Fam18h RAPL support

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@...on.cn>
---
 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