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From: Huang Rui <ray.huang@amd.com>
To: "Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	Shuah Khan <skhan@linuxfoundation.org>,
	"Borislav Petkov" <bp@suse.de>,
	Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@kernel.org>,
	Giovanni Gherdovich <ggherdovich@suse.cz>,
	Steven Rostedt <rostedt@goodmis.org>, <linux-pm@vger.kernel.org>
Cc: Deepak Sharma <deepak.sharma@amd.com>,
	Alex Deucher <alexander.deucher@amd.com>,
	Mario Limonciello <mario.limonciello@amd.com>,
	Steven Noonan <steven@valvesoftware.com>,
	Nathan Fontenot <nathan.fontenot@amd.com>,
	Jinzhou Su <Jinzhou.Su@amd.com>,
	Xiaojian Du <Xiaojian.Du@amd.com>, <linux-kernel@vger.kernel.org>,
	<x86@kernel.org>, Huang Rui <ray.huang@amd.com>
Subject: [PATCH v6 02/14] x86/msr: add AMD CPPC MSR definitions
Date: Mon, 20 Dec 2021 00:35:16 +0800	[thread overview]
Message-ID: <20211219163528.1023186-3-ray.huang@amd.com> (raw)
In-Reply-To: <20211219163528.1023186-1-ray.huang@amd.com>

AMD CPPC (Collaborative Processor Performance Control) function uses MSR
registers to manage the performance hints. So add the MSR register macro
here.

Signed-off-by: Huang Rui <ray.huang@amd.com>
---
 arch/x86/include/asm/msr-index.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 01e2650b9585..e7945ef6a8df 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -486,6 +486,23 @@
 
 #define MSR_AMD64_VIRT_SPEC_CTRL	0xc001011f
 
+/* AMD Collaborative Processor Performance Control MSRs */
+#define MSR_AMD_CPPC_CAP1		0xc00102b0
+#define MSR_AMD_CPPC_ENABLE		0xc00102b1
+#define MSR_AMD_CPPC_CAP2		0xc00102b2
+#define MSR_AMD_CPPC_REQ		0xc00102b3
+#define MSR_AMD_CPPC_STATUS		0xc00102b4
+
+#define CAP1_LOWEST_PERF(x)	(((x) >> 0) & 0xff)
+#define CAP1_LOWNONLIN_PERF(x)	(((x) >> 8) & 0xff)
+#define CAP1_NOMINAL_PERF(x)	(((x) >> 16) & 0xff)
+#define CAP1_HIGHEST_PERF(x)	(((x) >> 24) & 0xff)
+
+#define REQ_MAX_PERF(x)		(((x) & 0xff) << 0)
+#define REQ_MIN_PERF(x)		(((x) & 0xff) << 8)
+#define REQ_DES_PERF(x)		(((x) & 0xff) << 16)
+#define REQ_ENERGY_PERF_PREF(x)	(((x) & 0xff) << 24)
+
 /* Fam 17h MSRs */
 #define MSR_F17H_IRPERF			0xc00000e9
 
-- 
2.25.1


  parent reply	other threads:[~2021-12-19 16:36 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-19 16:35 [PATCH v6 00/14] cpufreq: introduce a new AMD CPU frequency control mechanism Huang Rui
2021-12-19 16:35 ` [PATCH v6 01/14] x86/cpufeatures: add AMD Collaborative Processor Performance Control feature flag Huang Rui
2021-12-19 16:35 ` Huang Rui [this message]
2021-12-21 15:45   ` [PATCH v6 02/14] x86/msr: add AMD CPPC MSR definitions Borislav Petkov
2021-12-22  0:17     ` Huang Rui
2021-12-22 18:05       ` Rafael J. Wysocki
2021-12-23  2:22         ` Huang Rui
2021-12-19 16:35 ` [PATCH v6 03/14] ACPI: CPPC: implement support for SystemIO registers Huang Rui
2021-12-19 16:35 ` [PATCH v6 04/14] ACPI: CPPC: Check present CPUs for determining _CPC is valid Huang Rui
2021-12-19 16:35 ` [PATCH v6 05/14] ACPI: CPPC: add cppc enable register function Huang Rui
2021-12-19 16:35 ` [PATCH v6 06/14] cpufreq: amd-pstate: introduce a new AMD P-State driver to support future processors Huang Rui
2021-12-19 16:35 ` [PATCH v6 07/14] cpufreq: amd-pstate: add fast switch function for AMD P-State Huang Rui
2021-12-19 16:35 ` [PATCH v6 08/14] cpufreq: amd-pstate: introduce the support for the processors with shared memory solution Huang Rui
2021-12-19 16:35 ` [PATCH v6 09/14] cpufreq: amd-pstate: add trace for AMD P-State module Huang Rui
2021-12-19 16:35 ` [PATCH v6 10/14] cpufreq: amd-pstate: add boost mode support for AMD P-State Huang Rui
2021-12-19 16:35 ` [PATCH v6 11/14] cpufreq: amd-pstate: add AMD P-State frequencies attributes Huang Rui
2021-12-19 16:35 ` [PATCH v6 12/14] cpufreq: amd-pstate: add AMD P-State performance attributes Huang Rui
2021-12-19 16:35 ` [PATCH v6 13/14] Documentation: AMD P-State: add AMD P-State driver introduction Huang Rui
2021-12-19 16:35 ` [PATCH v6 14/14] MAINTAINERS: add AMD P-State driver maintainer entry Huang Rui

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