diff options
| author | Aaron Liu <aaron.liu@amd.com> | 2021-01-25 16:08:55 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-06-04 16:03:19 -0400 |
| commit | bb763b5f8efda540a35fd4ba5ca7d27aeb5162a9 (patch) | |
| tree | f8aa67cef80c4c059da8a111becfc09cdd1f061d /drivers/gpu/drm/amd/amdgpu | |
| parent | c16e87d6f43184dc32d3ba1ceca8081d6aab0269 (diff) | |
drm/amdgpu: add RLC_PG_DELAY_3 for yellow carp
RLC_PG_DELAY_3 is to make RLC in safe mode to
prevent any misalignment or conflict in middle of any power
feature entry/exit sequence when CGPG feature is enabled.
Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c index fbcdfcac1c29..901267c4e44d 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c @@ -8064,12 +8064,23 @@ static void gfx_v10_cntl_power_gating(struct amdgpu_device *adev, bool enable) * in refclk count. Note that RLC FW is modified to take 16 bits from * RLC_PG_DELAY_3[15:0] as the hysteresis instead of just 8 bits. * - * The recommendation from RLC team is setting RLC_PG_DELAY_3 to 200us(0x4E20) - * as part of CGPG enablement starting point. + * The recommendation from RLC team is setting RLC_PG_DELAY_3 to 200us as part) + * of CGPG enablement starting point. + * Power/performance team will optimize it and might give a new value later. */ - if (enable && (adev->pg_flags & AMD_PG_SUPPORT_GFX_PG) && adev->asic_type == CHIP_VANGOGH) { - data = 0x4E20 & RLC_PG_DELAY_3__CGCG_ACTIVE_BEFORE_CGPG_MASK_Vangogh; - WREG32_SOC15(GC, 0, mmRLC_PG_DELAY_3, data); + if (enable && (adev->pg_flags & AMD_PG_SUPPORT_GFX_PG)) { + switch (adev->asic_type) { + case CHIP_VANGOGH: + data = 0x4E20 & RLC_PG_DELAY_3__CGCG_ACTIVE_BEFORE_CGPG_MASK_Vangogh; + WREG32_SOC15(GC, 0, mmRLC_PG_DELAY_3, data); + break; + case CHIP_YELLOW_CARP: + data = 0x1388 & RLC_PG_DELAY_3__CGCG_ACTIVE_BEFORE_CGPG_MASK_Vangogh; + WREG32_SOC15(GC, 0, mmRLC_PG_DELAY_3, data); + break; + default: + break; + } } } |