diff mbox series

[v3,1/2] power: enable CPPC support in power library

Message ID 20241010141737.1135905-1-wathsala.vithanage@arm.com (mailing list archive)
State Accepted, archived
Delegated to: Thomas Monjalon
Headers
Series [v3,1/2] power: enable CPPC support in power library |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Wathsala Wathawana Vithanage Oct. 10, 2024, 2:17 p.m. UTC 
Power library already supports Linux CPPC driver. Enable its use
and fix the name of the CPPC driver name.

Signed-off-by: Wathsala Vithanage <wathsala.vithanage@arm.com>
Reviewed-by: Dhruv Tripathi <dhruv.tripathi@arm.com>
---
 lib/power/power_cppc_cpufreq.c |  2 +-
 lib/power/rte_power_pmd_mgmt.c | 11 ++++++-----
 2 files changed, 7 insertions(+), 6 deletions(-)

Comments

Thomas Monjalon Oct. 10, 2024, 9:44 p.m. UTC | #1 
10/10/2024 16:17, Wathsala Vithanage:
> Power library already supports Linux CPPC driver. Enable its use
> and fix the name of the CPPC driver name.
> 
> Signed-off-by: Wathsala Vithanage <wathsala.vithanage@arm.com>
> Reviewed-by: Dhruv Tripathi <dhruv.tripathi@arm.com>

Series applied with a little more details about being a real fix.
Wathsala Wathawana Vithanage Oct. 10, 2024, 9:51 p.m. UTC | #2 
> > fix the name of the CPPC driver name.
> >
> > Signed-off-by: Wathsala Vithanage <wathsala.vithanage@arm.com>
> > Reviewed-by: Dhruv Tripathi <dhruv.tripathi@arm.com>
> 
> Series applied with a little more details about being a real fix.
> 
> 
Thanks you Thomas.
diff mbox series

Patch

diff --git a/lib/power/power_cppc_cpufreq.c b/lib/power/power_cppc_cpufreq.c
index 32aaacb948..e68b39b424 100644
--- a/lib/power/power_cppc_cpufreq.c
+++ b/lib/power/power_cppc_cpufreq.c
@@ -36,7 +36,7 @@ 
 #define POWER_SYSFILE_SYS_MAX \
 		"/sys/devices/system/cpu/cpu%u/cpufreq/cpuinfo_max_freq"
 
-#define POWER_CPPC_DRIVER "cppc-cpufreq"
+#define POWER_CPPC_DRIVER "cppc_cpufreq"
 #define BUS_FREQ     100000
 
 enum power_state {
diff --git a/lib/power/rte_power_pmd_mgmt.c b/lib/power/rte_power_pmd_mgmt.c
index b1c18a5f56..830a6c7a97 100644
--- a/lib/power/rte_power_pmd_mgmt.c
+++ b/lib/power/rte_power_pmd_mgmt.c
@@ -419,11 +419,12 @@  check_scale(unsigned int lcore)
 {
 	enum power_management_env env;
 
-	/* only PSTATE and ACPI modes are supported */
+	/* only PSTATE, AMD-PSTATE, ACPI and CPPC modes are supported */
 	if (!rte_power_check_env_supported(PM_ENV_ACPI_CPUFREQ) &&
 			!rte_power_check_env_supported(PM_ENV_PSTATE_CPUFREQ) &&
-			!rte_power_check_env_supported(PM_ENV_AMD_PSTATE_CPUFREQ)) {
-		POWER_LOG(DEBUG, "Neither ACPI nor PSTATE modes are supported");
+			!rte_power_check_env_supported(PM_ENV_AMD_PSTATE_CPUFREQ) &&
+			!rte_power_check_env_supported(PM_ENV_CPPC_CPUFREQ)) {
+		POWER_LOG(DEBUG, "Only ACPI, PSTATE, AMD-PSTATE, or CPPC modes are supported");
 		return -ENOTSUP;
 	}
 	/* ensure we could initialize the power library */
@@ -433,8 +434,8 @@  check_scale(unsigned int lcore)
 	/* ensure we initialized the correct env */
 	env = rte_power_get_env();
 	if (env != PM_ENV_ACPI_CPUFREQ && env != PM_ENV_PSTATE_CPUFREQ &&
-			env != PM_ENV_AMD_PSTATE_CPUFREQ) {
-		POWER_LOG(DEBUG, "Neither ACPI nor PSTATE modes were initialized");
+			env != PM_ENV_AMD_PSTATE_CPUFREQ && env != PM_ENV_CPPC_CPUFREQ) {
+		POWER_LOG(DEBUG, "Unable to initialize ACPI, PSTATE, AMD-PSTATE, or CPPC modes");
 		return -ENOTSUP;
 	}