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drm/amdgpu: Enable CGCG/LS for GC 9.4.3
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Enable coarse grain clockgating/light sleep for GC v9.4.3. Remove
programming that is not meant for GC 9.4.3.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Lijo Lazar authored and Alex Deucher committed Jun 9, 2023
1 parent 233bb37 commit b7c7011
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Showing 2 changed files with 7 additions and 10 deletions.
14 changes: 5 additions & 9 deletions drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
Original file line number Diff line number Diff line change
Expand Up @@ -2250,11 +2250,9 @@ gfx_v9_4_3_xcc_update_medium_grain_clock_gating(struct amdgpu_device *adev,

data &= ~(RLC_CGTT_MGCG_OVERRIDE__GRBM_CGTT_SCLK_OVERRIDE_MASK |
RLC_CGTT_MGCG_OVERRIDE__GFXIP_MGCG_OVERRIDE_MASK |
RLC_CGTT_MGCG_OVERRIDE__RLC_CGTT_SCLK_OVERRIDE_MASK |
RLC_CGTT_MGCG_OVERRIDE__GFXIP_MGLS_OVERRIDE_MASK);

/* only for Vega10 & Raven1 */
data |= RLC_CGTT_MGCG_OVERRIDE__RLC_CGTT_SCLK_OVERRIDE_MASK;

if (def != data)
WREG32_SOC15(GC, GET_INST(GC, xcc_id), regRLC_CGTT_MGCG_OVERRIDE, data);

Expand Down Expand Up @@ -2311,6 +2309,7 @@ gfx_v9_4_3_xcc_update_coarse_grain_clock_gating(struct amdgpu_device *adev,
uint32_t def, data;

if (enable && (adev->cg_flags & AMD_CG_SUPPORT_GFX_CGCG)) {

def = data = RREG32_SOC15(GC, GET_INST(GC, xcc_id), regRLC_CGTT_MGCG_OVERRIDE);
/* unset CGCG override */
data &= ~RLC_CGTT_MGCG_OVERRIDE__GFXIP_CGCG_OVERRIDE_MASK;
Expand All @@ -2325,12 +2324,9 @@ gfx_v9_4_3_xcc_update_coarse_grain_clock_gating(struct amdgpu_device *adev,
/* enable cgcg FSM(0x0000363F) */
def = RREG32_SOC15(GC, GET_INST(GC, xcc_id), regRLC_CGCG_CGLS_CTRL);

if (adev->asic_type == CHIP_ARCTURUS)
data = (0x2000 << RLC_CGCG_CGLS_CTRL__CGCG_GFX_IDLE_THRESHOLD__SHIFT) |
RLC_CGCG_CGLS_CTRL__CGCG_EN_MASK;
else
data = (0x36 << RLC_CGCG_CGLS_CTRL__CGCG_GFX_IDLE_THRESHOLD__SHIFT) |
RLC_CGCG_CGLS_CTRL__CGCG_EN_MASK;
data = (0x36
<< RLC_CGCG_CGLS_CTRL__CGCG_GFX_IDLE_THRESHOLD__SHIFT) |
RLC_CGCG_CGLS_CTRL__CGCG_EN_MASK;
if (adev->cg_flags & AMD_CG_SUPPORT_GFX_CGLS)
data |= (0x000F << RLC_CGCG_CGLS_CTRL__CGLS_REP_COMPANSAT_DELAY__SHIFT) |
RLC_CGCG_CGLS_CTRL__CGLS_EN_MASK;
Expand Down
3 changes: 2 additions & 1 deletion drivers/gpu/drm/amd/amdgpu/soc15.c
Original file line number Diff line number Diff line change
Expand Up @@ -1121,7 +1121,8 @@ static int soc15_common_early_init(void *handle)
case IP_VERSION(9, 4, 3):
adev->asic_funcs = &aqua_vanjaram_asic_funcs;
adev->cg_flags =
AMD_CG_SUPPORT_VCN_MGCG |
AMD_CG_SUPPORT_GFX_MGCG | AMD_CG_SUPPORT_GFX_CGCG |
AMD_CG_SUPPORT_GFX_CGLS | AMD_CG_SUPPORT_VCN_MGCG |
AMD_CG_SUPPORT_JPEG_MGCG;
adev->pg_flags =
AMD_PG_SUPPORT_VCN |
Expand Down

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