drm/amd/powerplay: add interface to parse pptable (v2)

This patch adds interface to parse pptable for smu.
It's to parse pptable format and fill PPTable_t smc_pptable to smu_table_context
structure. And read the smc_dpm_table from vbios, then fill it into smc_pptable.

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 931343c8097848c198130715a8e82388bf3dba8d..323db7dc47b1edb264c3be602d12a085aa35d2ca 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -166,6 +166,15 @@ static int smu_smc_table_hw_init(struct smu_context *smu)
        if (ret)
                return ret;
 
+       /*
+        * Parse pptable format and fill PPTable_t smc_pptable to
+        * smu_table_context structure. And read the smc_dpm_table from vbios,
+        * then fill it into smc_pptable.
+        */
+       ret = smu_parse_pptable(smu);
+       if (ret)
+               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 40159636845a53bd393a9d13d78a00b3602cf77b..fcdbade49878c707a059379e4668f699d4e4d154 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -42,6 +42,7 @@ struct smu_funcs
        int (*read_pptable_from_vbios)(struct smu_context *smu);
        int (*get_vbios_bootup_values)(struct smu_context *smu);
        int (*check_pptable)(struct smu_context *smu);
+       int (*parse_pptable)(struct smu_context *smu);
 };
 
 #define smu_init_microcode(smu) \
@@ -60,6 +61,9 @@ struct smu_funcs
        ((smu)->funcs->get_vbios_bootup_values ? (smu)->funcs->get_vbios_bootup_values((smu)) : 0)
 #define smu_check_pptable(smu) \
        ((smu)->funcs->check_pptable ? (smu)->funcs->check_pptable((smu)) : 0)
+#define smu_parse_pptable(smu) \
+       ((smu)->funcs->parse_pptable ? (smu)->funcs->parse_pptable((smu)) : 0)
+
 
 extern const struct amd_ip_funcs smu_ip_funcs;