drm/amd/powerplay: add interface to init power (v2)

This patch adds interface to init power function for smu.
It's to create smu_power_context structure, and allocate smu_dpm_context and
context size to fill the smu_power_context data.

v2: add detailed info to describe this function

Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@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 71da3dcd3db34f19f0a820553c4fc452ce762add..10316a2397da55a896dfb4dc1a88ce8e16481fda 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -85,6 +85,16 @@ static int smu_smc_table_sw_init(struct smu_context *smu)
                return ret;
        }
 
+       /**
+        * Create smu_power_context structure, and allocate smu_dpm_context and
+        * context size to fill the smu_power_context data.
+        */
+       ret = smu_init_power(smu);
+       if (ret) {
+               pr_err("Failed to init smu_init_power!\n");
+               return ret;
+       }
+
        return 0;
 }
 

diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index 8ca9835a5052cf2fc68e967bc0c1f342d8f79d33..d6cb895c6f8880babe6a1f2a2ab5fd0a769f223b 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -36,6 +36,7 @@ struct smu_funcs
 {
        int (*init_microcode)(struct smu_context *smu);
        int (*init_smc_tables)(struct smu_context *smu);
+       int (*init_power)(struct smu_context *smu);
        int (*load_microcode)(struct smu_context *smu);
        int (*check_fw_status)(struct smu_context *smu);
        int (*read_pptable_from_vbios)(struct smu_context *smu);
@@ -45,6 +46,8 @@ struct smu_funcs
        ((smu)->funcs->init_microcode ? (smu)->funcs->init_microcode((smu)) : 0)
 #define smu_init_smc_tables(smu) \
        ((smu)->funcs->init_smc_tables ? (smu)->funcs->init_smc_tables((smu)) : 0)
+#define smu_init_power(smu) \
+       ((smu)->funcs->init_power ? (smu)->funcs->init_power((smu)) : 0)
 #define smu_load_microcode(smu) \
        ((smu)->funcs->load_microcode ? (smu)->funcs->load_microcode((smu)) : 0)
 #define smu_check_fw_status(smu) \