From: Mario Limonciello <mario.limonciello@amd.com>
To: Huang Rui <ray.huang@amd.com>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Viresh Kumar <viresh.kumar@linaro.org>
Cc: "open list:AMD PSTATE DRIVER" <linux-pm@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>,
Mario Limonciello <mario.limonciello@amd.com>
Subject: [PATCH 3/3] cpufreq: amd-pstate: Add a module device table
Date: Fri, 25 Mar 2022 00:42:28 -0500 [thread overview]
Message-ID: <20220325054228.5247-4-mario.limonciello@amd.com> (raw)
In-Reply-To: <20220325054228.5247-1-mario.limonciello@amd.com>
`amd-pstate` currently only loads automatically if compiled into the
kernel. To improve the usability, add a module device table that
will load when AMD CPUs that support CPPC are detected.
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
drivers/cpufreq/amd-pstate.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index 31a04e818195..44490292fa72 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -644,6 +644,12 @@ static void __exit amd_pstate_exit(void)
amd_pstate_enable(false);
}
+static const struct x86_cpu_id __maybe_unused amd_pstate_ids[] = {
+ X86_MATCH_VENDOR_FEATURE(AMD, X86_FEATURE_CPPC, NULL),
+ {}
+};
+MODULE_DEVICE_TABLE(x86cpu, amd_pstate_ids);
+
module_init(amd_pstate_init);
module_exit(amd_pstate_exit);
--
2.34.1
next prev parent reply other threads:[~2022-03-25 5:42 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-25 5:42 [PATCH 0/3] Improve usability for amd-pstate Mario Limonciello
2022-03-25 5:42 ` [PATCH 1/3] cpufreq: Allow passing NULL as the argument for unregistering a driver Mario Limonciello
2022-03-27 13:23 ` Huang Rui
2022-03-25 5:42 ` [PATCH 2/3] cpufreq: amd-pstate: Allow replacing existing cpufreq drivers when loaded Mario Limonciello
2022-03-25 5:42 ` Mario Limonciello [this message]
2022-03-27 13:27 ` [PATCH 3/3] cpufreq: amd-pstate: Add a module device table Huang Rui
2022-03-27 11:56 ` [PATCH 0/3] Improve usability for amd-pstate Huang Rui
2022-03-28 22:14 ` Limonciello, Mario
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