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From a499d71d6d40d61ebece87bfc87729440518bc5d Mon Sep 17 00:00:00 2001
From: Kevin Wang <kevin1.wang@amd.com>
Date: Tue, 23 Apr 2019 13:14:15 +0800
Subject: [PATCH 2359/2940] drm/amd/powerplay: add function
get_fan_speed_percent for navi10
add callback function get_fan_speed_percent for navi10 asic
Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/navi10_ppt.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index fd796322fe35..1219a68e56f2 100644
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -819,6 +819,24 @@ static int navi10_set_thermal_fan_table(struct smu_context *smu)
return ret;
}
+static int navi10_get_fan_speed_percent(struct smu_context *smu,
+ uint32_t *speed)
+{
+ int ret = 0;
+ uint32_t percent = 0;
+ uint32_t current_rpm;
+ PPTable_t *pptable = smu->smu_table.driver_pptable;
+
+ ret = smu_get_current_rpm(smu, ¤t_rpm);
+ if (ret)
+ return ret;
+
+ percent = current_rpm * 100 / pptable->FanMaximumRpm;
+ *speed = percent > 100 ? 100 : percent;
+
+ return ret;
+}
+
static const struct pptable_funcs navi10_ppt_funcs = {
.tables_init = navi10_tables_init,
.alloc_dpm_context = navi10_allocate_dpm_context,
@@ -846,6 +864,7 @@ static const struct pptable_funcs navi10_ppt_funcs = {
.get_current_activity_percent = navi10_get_current_activity_percent,
.is_dpm_running = navi10_is_dpm_running,
.set_thermal_fan_table = navi10_set_thermal_fan_table,
+ .get_fan_speed_percent = navi10_get_fan_speed_percent,
};
void navi10_set_ppt_funcs(struct smu_context *smu)
--
2.17.1
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