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From 294dede95546ec7066f5446bf7082f83283d17e1 Mon Sep 17 00:00:00 2001
From: Evan Quan <evan.quan@amd.com>
Date: Mon, 22 Jul 2019 12:09:38 +0800
Subject: [PATCH 3185/4256] drm/amd/powerplay: support fan speed retrieval on
arcturus
Support arcturus fan speed retrieval.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/arcturus_ppt.c | 40 ++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
index 6d1691d9ac7c..1bdebb77c55b 100644
--- a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
@@ -994,6 +994,44 @@ static int arcturus_read_sensor(struct smu_context *smu,
return ret;
}
+static int arcturus_get_fan_speed_rpm(struct smu_context *smu,
+ uint32_t *speed)
+{
+ SmuMetrics_t metrics;
+ int ret = 0;
+
+ if (!speed)
+ return -EINVAL;
+
+ ret = arcturus_get_metrics_table(smu, &metrics);
+ if (ret)
+ return ret;
+
+ *speed = metrics.CurrFanSpeed;
+
+ return ret;
+}
+
+static int arcturus_get_fan_speed_percent(struct smu_context *smu,
+ uint32_t *speed)
+{
+ PPTable_t *pptable = smu->smu_table.driver_pptable;
+ uint32_t percent, current_rpm;
+ int ret = 0;
+
+ if (!speed)
+ return -EINVAL;
+
+ ret = arcturus_get_fan_speed_rpm(smu, ¤t_rpm);
+ if (ret)
+ return ret;
+
+ percent = current_rpm * 100 / pptable->FanMaximumRpm;
+ *speed = percent > 100 ? 100 : percent;
+
+ return ret;
+}
+
static int arcturus_get_current_clk_freq_by_table(struct smu_context *smu,
enum smu_clk_type clk_type,
uint32_t *value)
@@ -1475,6 +1513,8 @@ static const struct pptable_funcs arcturus_ppt_funcs = {
.print_clk_levels = arcturus_print_clk_levels,
.force_clk_levels = arcturus_force_clk_levels,
.read_sensor = arcturus_read_sensor,
+ .get_fan_speed_percent = arcturus_get_fan_speed_percent,
+ .get_fan_speed_rpm = arcturus_get_fan_speed_rpm,
/* debug (internal used) */
.dump_pptable = arcturus_dump_pptable,
};
--
2.17.1
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