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 v7 02/14] x86/msr: Add AMD CPPC MSR definitions
Date: Fri, 24 Dec 2021 09:04:56 +0800 [thread overview]
Message-ID: <20211224010508.110159-3-ray.huang@amd.com> (raw)
In-Reply-To: <20211224010508.110159-1-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..3faf0f97edb1 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 AMD_CPPC_LOWEST_PERF(x) (((x) >> 0) & 0xff)
+#define AMD_CPPC_LOWNONLIN_PERF(x) (((x) >> 8) & 0xff)
+#define AMD_CPPC_NOMINAL_PERF(x) (((x) >> 16) & 0xff)
+#define AMD_CPPC_HIGHEST_PERF(x) (((x) >> 24) & 0xff)
+
+#define AMD_CPPC_MAX_PERF(x) (((x) & 0xff) << 0)
+#define AMD_CPPC_MIN_PERF(x) (((x) & 0xff) << 8)
+#define AMD_CPPC_DES_PERF(x) (((x) & 0xff) << 16)
+#define AMD_CPPC_ENERGY_PERF_PREF(x) (((x) & 0xff) << 24)
+
/* Fam 17h MSRs */
#define MSR_F17H_IRPERF 0xc00000e9
--
2.25.1
next prev parent reply other threads:[~2021-12-24 1:05 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-24 1:04 [PATCH v7 00/14] cpufreq: Introduce a new AMD CPU frequency control mechanism Huang Rui
2021-12-24 1:04 ` [PATCH v7 01/14] x86/cpufeatures: Add AMD Collaborative Processor Performance Control feature flag Huang Rui
2021-12-24 1:04 ` Huang Rui [this message]
2021-12-30 16:55 ` [PATCH v7 02/14] x86/msr: Add AMD CPPC MSR definitions Borislav Petkov
2021-12-24 1:04 ` [PATCH v7 03/14] ACPI: CPPC: Implement support for SystemIO registers Huang Rui
2021-12-24 1:04 ` [PATCH v7 04/14] ACPI: CPPC: Check present CPUs for determining _CPC is valid Huang Rui
2021-12-24 1:04 ` [PATCH v7 05/14] ACPI: CPPC: Add CPPC enable register function Huang Rui
2021-12-24 1:05 ` [PATCH v7 06/14] cpufreq: amd-pstate: Introduce a new AMD P-State driver to support future processors Huang Rui
2021-12-24 1:05 ` [PATCH v7 07/14] cpufreq: amd-pstate: Add fast switch function for AMD P-State Huang Rui
2021-12-24 1:05 ` [PATCH v7 08/14] cpufreq: amd-pstate: Introduce the support for the processors with shared memory solution Huang Rui
2021-12-24 1:05 ` [PATCH v7 09/14] cpufreq: amd-pstate: Add trace for AMD P-State module Huang Rui
2021-12-24 1:05 ` [PATCH v7 10/14] cpufreq: amd-pstate: Add boost mode support for AMD P-State Huang Rui
2021-12-24 1:05 ` [PATCH v7 11/14] cpufreq: amd-pstate: Add AMD P-State frequencies attributes Huang Rui
2021-12-24 1:05 ` [PATCH v7 12/14] cpufreq: amd-pstate: Add AMD P-State performance attributes Huang Rui
2021-12-24 1:05 ` [PATCH v7 13/14] Documentation: amd-pstate: Add AMD P-State driver introduction Huang Rui
2021-12-24 1:05 ` [PATCH v7 14/14] MAINTAINERS: Add AMD P-State driver maintainer entry Huang Rui
2021-12-30 15:56 ` [PATCH v7 00/14] cpufreq: Introduce a new AMD CPU frequency control mechanism Rafael J. Wysocki
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