drm/amdgpu/pm: add capped/uncapped power profile modes

Capped and uncapped workload types switching are supported on Vangogh,
User can switch the power profile and check current type with below commands.

1) switch to capped mode:
`# echo 8 > /sys/class/drm/card0/device/pp_power_profile_mode`

2) switch to uncapped mode:
`# echo 9 > /sys/class/drm/card0/device/pp_power_profile_mode`

3) check current mode:
$ cat /sys/class/drm/card0/device/pp_power_profile_mode
 1 3D_FULL_SCREEN
 3          VIDEO
 4             VR
 5        COMPUTE
 6         CUSTOM
 8         CAPPED
 9       UNCAPPED*
Acked-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/include/kgd_pp_interface.h

@@ -160,6 +160,8 @@ enum PP_SMC_POWER_PROFILE {
 	PP_SMC_POWER_PROFILE_COMPUTE      = 0x5,
 	PP_SMC_POWER_PROFILE_CUSTOM       = 0x6,
 	PP_SMC_POWER_PROFILE_WINDOW3D     = 0x7,
+	PP_SMC_POWER_PROFILE_CAPPED	  = 0x8,
+	PP_SMC_POWER_PROFILE_UNCAPPED	  = 0x9,
 	PP_SMC_POWER_PROFILE_COUNT,
 };
 

drivers/gpu/drm/amd/pm/amdgpu_pm.c

@@ -91,6 +91,8 @@ const char * const amdgpu_pp_profile_name[] = {
 	"COMPUTE",
 	"CUSTOM",
 	"WINDOW_3D",
+	"CAPPED",
+	"UNCAPPED",
 };
 
 /**

drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c

@@ -478,13 +478,13 @@ int smu_cmn_to_asic_specific_index(struct smu_context *smu,
 		return mapping.map_to;
 
 	case CMN2ASIC_MAPPING_WORKLOAD:
-		if (index > PP_SMC_POWER_PROFILE_WINDOW3D ||
+		if (index >= PP_SMC_POWER_PROFILE_COUNT ||
 		    !smu->workload_map)
 			return -EINVAL;
 
 		mapping = smu->workload_map[index];
 		if (!mapping.valid_mapping)
-			return -EINVAL;
+			return -ENOTSUPP;
 
 		return mapping.map_to;