drm/amd/powerplay: add helper function of smu_set_hard_freq_range

add this function to get dpm clock information.

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>

diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
index dd06d23..6183b8f 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -93,6 +93,39 @@ int smu_set_soft_freq_range(struct smu_context *smu, enum smu_clk_type clk_type,
        return ret;
 }
 
+int smu_set_hard_freq_range(struct smu_context *smu, enum smu_clk_type clk_type,
+                           uint32_t min, uint32_t max)
+{
+       int ret = 0, clk_id = 0;
+       uint32_t param;
+
+       if (min <= 0 && max <= 0)
+               return -EINVAL;
+
+       clk_id = smu_clk_get_index(smu, clk_type);
+       if (clk_id < 0)
+               return clk_id;
+
+       if (max > 0) {
+               param = (uint32_t)((clk_id << 16) | (max & 0xffff));
+               ret = smu_send_smc_msg_with_param(smu, SMU_MSG_SetHardMaxByFreq,
+                                                 param);
+               if (ret)
+                       return ret;
+       }
+
+       if (min > 0) {
+               param = (uint32_t)((clk_id << 16) | (min & 0xffff));
+               ret = smu_send_smc_msg_with_param(smu, SMU_MSG_SetHardMinByFreq,
+                                                 param);
+               if (ret)
+                       return ret;
+       }
+
+
+       return ret;
+}
+
 int smu_get_dpm_freq_range(struct smu_context *smu, enum smu_clk_type clk_type,
                           uint32_t *min, uint32_t *max)
 {

diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index b1d9128..e0d726b 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -943,4 +943,6 @@ int smu_get_dpm_freq_range(struct smu_context *smu, enum smu_clk_type clk_type,
                           uint32_t *min, uint32_t *max);
 int smu_set_soft_freq_range(struct smu_context *smu, enum smu_clk_type clk_type,
                            uint32_t min, uint32_t max);
+int smu_set_hard_freq_range(struct smu_context *smu, enum smu_clk_type clk_type,
+                           uint32_t min, uint32_t max);
 #endif