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

This patch adds interface to write pptable for smu.
It's to copy pptable bo in the vram to smc with SMU MSGs such as
SetDriverDramAddr and TransferTableDram2Smu.

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 519682541caeed3a0af9032b0e8298db8e7da28d..747b6b7a76755469d45931e1f74b4cf8ce459040 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -192,6 +192,14 @@ static int smu_smc_table_hw_init(struct smu_context *smu)
        if (ret)
                return ret;
 
+       /*
+        * Copy pptable bo in the vram to smc with SMU MSGs such as
+        * SetDriverDramAddr and TransferTableDram2Smu.
+        */
+       ret = smu_write_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 95252653a66556865c3953e4362a8e10ea0ead5b..e7e9fecbb086a09acd5f0cd5b46f3a754a301f11 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -45,6 +45,7 @@ struct smu_funcs
        int (*parse_pptable)(struct smu_context *smu);
        int (*populate_smc_pptable)(struct smu_context *smu);
        int (*check_fw_version)(struct smu_context *smu);
+       int (*write_pptable)(struct smu_context *smu);
 };
 
 #define smu_init_microcode(smu) \
@@ -69,6 +70,8 @@ struct smu_funcs
        ((smu)->funcs->populate_smc_pptable ? (smu)->funcs->populate_smc_pptable((smu)) : 0)
 #define smu_check_fw_version(smu) \
        ((smu)->funcs->check_fw_version ? (smu)->funcs->check_fw_version((smu)) : 0)
+#define smu_write_pptable(smu) \
+       ((smu)->funcs->write_pptable ? (smu)->funcs->write_pptable((smu)) : 0)
 
 
 extern const struct amd_ip_funcs smu_ip_funcs;