diff options
| author | Jacky Liao <ziyu.liao@amd.com> | 2020-10-22 00:31:26 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-11-24 20:07:31 +0300 |
| commit | 96879ad3e4e3cf16af78de4fe9cbc9688cb26105 (patch) | |
| tree | d45a9d1f2389091b4981bfdb13d31c9781fb5c0b /drivers/gpu/drm/amd/display/dc/dce | |
| parent | 949c5cde3e0ffca0811ef72b8f4bcd9a483ab558 (diff) | |
| download | linux-96879ad3e4e3cf16af78de4fe9cbc9688cb26105.tar.xz | |
drm/amd/display: Add DMCU memory low power support
[Why]
On some platforms, DMCU is no longer used. In these cases, some DMCU
memory should be completely powered off to save power.
[How]
1. Set DMCU_ERAM_MEM_PWR_FORCE to shutdown memory when DMCU is not in
use
2. Added a debug option to allow this behaviour to be turned off
3. Set all memory low power debug options to off first, to not
immediately cause problems
Signed-off-by: Jacky Liao <ziyu.liao@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.h b/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.h index ad0ae1f7b513..fe31abfa6c85 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.h +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.h @@ -597,6 +597,7 @@ struct dce_hwseq_registers { uint32_t AZALIA_CONTROLLER_CLOCK_GATING; uint32_t HPO_TOP_CLOCK_CONTROL; uint32_t ODM_MEM_PWR_CTRL3; + uint32_t DMU_MEM_PWR_CNTL; }; /* set field name */ #define HWS_SF(blk_name, reg_name, field_name, post_fix)\ @@ -836,7 +837,8 @@ struct dce_hwseq_registers { HWSEQ_DCN2_MASK_SH_LIST(mask_sh), \ HWS_SF(, AZALIA_AUDIO_DTO, AZALIA_AUDIO_DTO_MODULE, mask_sh), \ HWS_SF(, ODM_MEM_PWR_CTRL3, ODM_MEM_UNASSIGNED_PWR_MODE, mask_sh), \ - HWS_SF(, ODM_MEM_PWR_CTRL3, ODM_MEM_VBLANK_PWR_MODE, mask_sh) + HWS_SF(, ODM_MEM_PWR_CTRL3, ODM_MEM_VBLANK_PWR_MODE, mask_sh), \ + HWS_SF(, DMU_MEM_PWR_CNTL, DMCU_ERAM_MEM_PWR_FORCE, mask_sh) #define HWSEQ_DCN301_MASK_SH_LIST(mask_sh)\ HWSEQ_DCN_MASK_SH_LIST(mask_sh), \ @@ -1046,7 +1048,8 @@ struct dce_hwseq_registers { type D4VGA_MODE_ENABLE; \ type AZALIA_AUDIO_DTO_MODULE; \ type ODM_MEM_UNASSIGNED_PWR_MODE; \ - type ODM_MEM_VBLANK_PWR_MODE; + type ODM_MEM_VBLANK_PWR_MODE; \ + type DMCU_ERAM_MEM_PWR_FORCE; #define HWSEQ_DCN3_REG_FIELD_LIST(type) \ type HPO_HDMISTREAMCLK_GATE_DIS; |