v2: change function name to smu_clk_dpm_is_enabled.
add this helper function to check dpm clk feature is enabled.
Change-Id: I7f9949033c318fec618a9701df4a082d54a626c8
Signed-off-by: Kevin Wang <kevin1.w...@amd.com>
---
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 69 ++++++++++++-------
.../gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 1 +
2 files changed, 47 insertions(+), 23 deletions(-)
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index 787a293fde97..c16195e19078 100644
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -69,6 +69,10 @@ int smu_set_soft_freq_range(struct smu_context *smu, enum
smu_clk_type clk_type,
if (min <= 0 && max <= 0)
return -EINVAL;
+ ret = smu_clk_dpm_is_enabled(smu, clk_type);
+ if (ret)
+ return ret;
+
clk_id = smu_clk_get_index(smu, clk_type);
if (clk_id < 0)
return clk_id;
@@ -102,6 +106,10 @@ int smu_set_hard_freq_range(struct smu_context *smu, enum
smu_clk_type clk_type,
if (min <= 0 && max <= 0)
return -EINVAL;
+ ret = smu_clk_dpm_is_enabled(smu, clk_type);
+ if (ret)
+ return ret;
+
clk_id = smu_clk_get_index(smu, clk_type);
if (clk_id < 0)
return clk_id;
@@ -135,29 +143,9 @@ int smu_get_dpm_freq_range(struct smu_context *smu, enum
smu_clk_type clk_type,
if (!min && !max)
return -EINVAL;
- switch (clk_type) {
- case SMU_MCLK:
- case SMU_UCLK:
- if (!smu_feature_is_enabled(smu, SMU_FEATURE_DPM_UCLK_BIT)) {
- pr_warn("uclk dpm is not enabled\n");
- return 0;
- }
- break;
- case SMU_GFXCLK:
- case SMU_SCLK:
- if (!smu_feature_is_enabled(smu, SMU_FEATURE_DPM_GFXCLK_BIT)) {
- pr_warn("gfxclk dpm is not enabled\n");
- return 0;
- }
- case SMU_SOCCLK:
- if (!smu_feature_is_enabled(smu, SMU_FEATURE_DPM_SOCCLK_BIT)) {
- pr_warn("sockclk dpm is not enabled\n");
- return 0;
- }
- break;
- default:
- break;
- }
+ ret = smu_clk_dpm_is_enabled(smu, clk_type);
+ if (ret)
+ return ret;
mutex_lock(&smu->mutex);
clk_id = smu_clk_get_index(smu, clk_type);
@@ -200,6 +188,10 @@ int smu_get_dpm_freq_by_index(struct smu_context *smu,
enum smu_clk_type clk_typ
if (!value)
return -EINVAL;
+ ret = smu_clk_dpm_is_enabled(smu, clk_type);
+ if (ret)
+ return ret;
+
clk_id = smu_clk_get_index(smu, clk_type);
if (clk_id < 0)
return clk_id;
@@ -228,6 +220,37 @@ int smu_get_dpm_level_count(struct smu_context *smu, enum
smu_clk_type clk_type,
return smu_get_dpm_freq_by_index(smu, clk_type, 0xff, value);
}
+int smu_clk_dpm_is_enabled(struct smu_context *smu, enum smu_clk_type clk_type)
+{
+ int ret = 0;
+ enum smu_feature_mask feature_id = 0;
+
+ switch (clk_type) {
+ case SMU_MCLK:
+ case SMU_UCLK:
+ feature_id = SMU_FEATURE_DPM_UCLK_BIT;
+ break;
+ case SMU_GFXCLK:
+ case SMU_SCLK:
+ feature_id = SMU_FEATURE_DPM_GFXCLK_BIT;
+ break;
+ case SMU_SOCCLK:
+ feature_id = SMU_FEATURE_DPM_SOCCLK_BIT;
+ break;
+ default:
+ return 0;
+ }
+
+ ret = smu_feature_is_enabled(smu, feature_id);
+ if (ret) {
+ pr_warn("smu %d clk dpm feature %d is not enabled\n", clk_type,
feature_id);
+ return -EACCES;
+ }
+
+ return ret;
+}
+
+
int smu_dpm_set_power_gate(struct smu_context *smu, uint32_t block_type,
bool gate)
{
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index c97324ef7db2..4629a64a90ed 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -973,5 +973,6 @@ int smu_set_hard_freq_range(struct smu_context *smu, enum
smu_clk_type clk_type,
enum amd_dpm_forced_level smu_get_performance_level(struct smu_context *smu);
int smu_force_performance_level(struct smu_context *smu, enum
amd_dpm_forced_level level);
int smu_set_display_count(struct smu_context *smu, uint32_t count);
+int smu_clk_dpm_is_enabled(struct smu_context *smu, enum smu_clk_type
clk_type);
#endif
--
2.22.0
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