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drm/amd/powerplay: Enable UVD powergating for SMU7 

This patch enables detecting VCE/UVD PG features and fixes the
UVD powergate function.

Tested on a Tonga (by reading UVD tile/clk bits during playback/idle).

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tom St Denis 2016-09-30 10:58:44 -04:00 committed by Alex Deucher
parent f8991bab1a
commit 97f40ef049
2 changed files with 23 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_clockpowergating.c
View File

@ -149,15 +149,21 @@ int smu7_powergate_uvd(struct pp_hwmgr *hwmgr, bool bgate)
if (bgate) {
cgs_set_clockgating_state(hwmgr->device,
AMD_IP_BLOCK_TYPE_UVD,
AMD_CG_STATE_GATE);
AMD_CG_STATE_UNGATE);
cgs_set_powergating_state(hwmgr->device,
AMD_IP_BLOCK_TYPE_UVD,
AMD_PG_STATE_GATE);
smu7_update_uvd_dpm(hwmgr, true);
smu7_powerdown_uvd(hwmgr);
} else {
smu7_powerup_uvd(hwmgr);
smu7_update_uvd_dpm(hwmgr, false);
cgs_set_powergating_state(hwmgr->device,
AMD_IP_BLOCK_TYPE_UVD,
AMD_CG_STATE_UNGATE);
cgs_set_clockgating_state(hwmgr->device,
AMD_IP_BLOCK_TYPE_UVD,
AMD_CG_STATE_UNGATE);
AMD_CG_STATE_GATE);
smu7_update_uvd_dpm(hwmgr, false);
}
return 0;

14
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
View File

@ -1352,6 +1352,8 @@ static void smu7_init_dpm_defaults(struct pp_hwmgr *hwmgr)
struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
struct phm_ppt_v1_information *table_info =
(struct phm_ppt_v1_information *)(hwmgr->pptable);
struct cgs_system_info sys_info = {0};
int result;
data->dll_default_on = false;
data->mclk_dpm0_activity_target = 0xa;
@ -1439,6 +1441,18 @@ static void smu7_init_dpm_defaults(struct pp_hwmgr *hwmgr)
data->pcie_lane_performance.min = 16;
data->pcie_lane_power_saving.max = 0;
data->pcie_lane_power_saving.min = 16;
sys_info.size = sizeof(struct cgs_system_info);
sys_info.info_id = CGS_SYSTEM_INFO_PG_FLAGS;
result = cgs_query_system_info(hwmgr->device, &sys_info);
if (!result) {
if (sys_info.value & AMD_PG_SUPPORT_UVD)
phm_cap_set(hwmgr->platform_descriptor.platformCaps,
PHM_PlatformCaps_UVDPowerGating);
if (sys_info.value & AMD_PG_SUPPORT_VCE)
phm_cap_set(hwmgr->platform_descriptor.platformCaps,
PHM_PlatformCaps_VCEPowerGating);
}
}
/**