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From 7a2e755d51f2676519900b8e877298bf012374a1 Mon Sep 17 00:00:00 2001
From: changzhu <Changfeng.Zhu@amd.com>
Date: Wed, 13 Nov 2019 17:17:09 +0800
Subject: [PATCH 4536/4736] drm/amd/powerplay: enable gpu_busy_percent sys
interface for renoir (v2)
To get the value of gpu_busy_percent, it needs to realize
get_current_activity_percent and get_metrics_table.
The framework of renoir smu is different from old ones like raven. It
needs to realize get_current_activity_percent and get_metrics_table in
renoir_ppt.c like navi10.
v2: remove unused variable (Alex)
Signed-off-by: changzhu <Changfeng.Zhu@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h | 4 +
drivers/gpu/drm/amd/powerplay/renoir_ppt.c | 76 +++++++++++++++++++
drivers/gpu/drm/amd/powerplay/smu_v12_0.c | 33 ++++++++
3 files changed, 113 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h b/drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h
index 1745e0146fba..44c65dd8850d 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h
@@ -62,6 +62,10 @@ int smu_v12_0_powergate_jpeg(struct smu_context *smu, bool gate);
int smu_v12_0_set_gfx_cgpg(struct smu_context *smu, bool enable);
+int smu_v12_0_read_sensor(struct smu_context *smu,
+ enum amd_pp_sensors sensor,
+ void *data, uint32_t *size);
+
uint32_t smu_v12_0_get_gfxoff_status(struct smu_context *smu);
int smu_v12_0_gfx_off_control(struct smu_context *smu, bool enable);
diff --git a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
index 784903a313b7..b44ce143e895 100644
--- a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
@@ -139,6 +139,27 @@ static int renoir_get_smu_table_index(struct smu_context *smc, uint32_t index)
return mapping.map_to;
}
+static int renoir_get_metrics_table(struct smu_context *smu,
+ SmuMetrics_t *metrics_table)
+{
+ struct smu_table_context *smu_table= &smu->smu_table;
+ int ret = 0;
+
+ if (!smu_table->metrics_time || time_after(jiffies, smu_table->metrics_time + msecs_to_jiffies(100))) {
+ ret = smu_update_table(smu, SMU_TABLE_SMU_METRICS, 0,
+ (void *)smu_table->metrics_table, false);
+ if (ret) {
+ pr_info("Failed to export SMU metrics table!\n");
+ return ret;
+ }
+ smu_table->metrics_time = jiffies;
+ }
+
+ memcpy(metrics_table, smu_table->metrics_table, sizeof(SmuMetrics_t));
+
+ return ret;
+}
+
static int renoir_tables_init(struct smu_context *smu, struct smu_table *tables)
{
struct smu_table_context *smu_table = &smu->smu_table;
@@ -154,6 +175,11 @@ static int renoir_tables_init(struct smu_context *smu, struct smu_table *tables)
if (!smu_table->clocks_table)
return -ENOMEM;
+ smu_table->metrics_table = kzalloc(sizeof(SmuMetrics_t), GFP_KERNEL);
+ if (!smu_table->metrics_table)
+ return -ENOMEM;
+ smu_table->metrics_time = 0;
+
return 0;
}
@@ -386,6 +412,32 @@ static int renoir_unforce_dpm_levels(struct smu_context *smu) {
return ret;
}
+static int renoir_get_current_activity_percent(struct smu_context *smu,
+ enum amd_pp_sensors sensor,
+ uint32_t *value)
+{
+ int ret = 0;
+ SmuMetrics_t metrics;
+
+ if (!value)
+ return -EINVAL;
+
+ ret = renoir_get_metrics_table(smu, &metrics);
+ if (ret)
+ return ret;
+
+ switch (sensor) {
+ case AMDGPU_PP_SENSOR_GPU_LOAD:
+ *value = metrics.AverageGfxActivity;
+ break;
+ default:
+ pr_err("Invalid sensor for retrieving clock activity\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static int renoir_get_workload_type(struct smu_context *smu, uint32_t profile)
{
@@ -699,6 +751,29 @@ static int renoir_get_power_profile_mode(struct smu_context *smu,
return size;
}
+static int renoir_read_sensor(struct smu_context *smu,
+ enum amd_pp_sensors sensor,
+ void *data, uint32_t *size)
+{
+ int ret = 0;
+
+ if (!data || !size)
+ return -EINVAL;
+
+ mutex_lock(&smu->sensor_lock);
+ switch (sensor) {
+ case AMDGPU_PP_SENSOR_GPU_LOAD:
+ ret = renoir_get_current_activity_percent(smu, sensor, (uint32_t *)data);
+ *size = 4;
+ break;
+ default:
+ ret = smu_v12_0_read_sensor(smu, sensor, data, size);
+ }
+ mutex_unlock(&smu->sensor_lock);
+
+ return ret;
+}
+
static const struct pptable_funcs renoir_ppt_funcs = {
.get_smu_msg_index = renoir_get_smu_msg_index,
.get_smu_table_index = renoir_get_smu_table_index,
@@ -719,6 +794,7 @@ static const struct pptable_funcs renoir_ppt_funcs = {
.get_dpm_clock_table = renoir_get_dpm_clock_table,
.set_watermarks_table = renoir_set_watermarks_table,
.get_power_profile_mode = renoir_get_power_profile_mode,
+ .read_sensor = renoir_read_sensor,
.check_fw_status = smu_v12_0_check_fw_status,
.check_fw_version = smu_v12_0_check_fw_version,
.powergate_sdma = smu_v12_0_powergate_sdma,
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v12_0.c b/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
index 18b24f954380..045167311ae8 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v12_0.c
@@ -223,6 +223,39 @@ int smu_v12_0_set_gfx_cgpg(struct smu_context *smu, bool enable)
SMU_MSG_SetGfxCGPG, enable ? 1 : 0);
}
+int smu_v12_0_read_sensor(struct smu_context *smu,
+ enum amd_pp_sensors sensor,
+ void *data, uint32_t *size)
+{
+ int ret = 0;
+
+ if(!data || !size)
+ return -EINVAL;
+
+ switch (sensor) {
+ case AMDGPU_PP_SENSOR_GFX_MCLK:
+ ret = smu_get_current_clk_freq(smu, SMU_UCLK, (uint32_t *)data);
+ *size = 4;
+ break;
+ case AMDGPU_PP_SENSOR_GFX_SCLK:
+ ret = smu_get_current_clk_freq(smu, SMU_GFXCLK, (uint32_t *)data);
+ *size = 4;
+ break;
+ case AMDGPU_PP_SENSOR_MIN_FAN_RPM:
+ *(uint32_t *)data = 0;
+ *size = 4;
+ break;
+ default:
+ ret = smu_common_read_sensor(smu, sensor, data, size);
+ break;
+ }
+
+ if (ret)
+ *size = 0;
+
+ return ret;
+}
+
/**
* smu_v12_0_get_gfxoff_status - get gfxoff status
*
--
2.17.1
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