diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c index fcf2bb0e886c..794e905204f4 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c @@ -3729,7 +3729,35 @@ static void gfx_v12_0_update_coarse_grain_clock_gating(struct amdgpu_device *ade static void gfx_v12_0_update_medium_grain_clock_gating(struct amdgpu_device *adev, bool enable) { - /* TODO */ + uint32_t data, def; + if (!(adev->cg_flags & (AMD_CG_SUPPORT_GFX_MGCG | AMD_CG_SUPPORT_GFX_MGLS))) + return; + + /* It is disabled by HW by default */ + if (enable) { + if (adev->cg_flags & AMD_CG_SUPPORT_GFX_MGCG) { + /* 1 - RLC_CGTT_MGCG_OVERRIDE */ + def = data = RREG32_SOC15(GC, 0, regRLC_CGTT_MGCG_OVERRIDE); + + data &= ~(RLC_CGTT_MGCG_OVERRIDE__GRBM_CGTT_SCLK_OVERRIDE_MASK | + RLC_CGTT_MGCG_OVERRIDE__RLC_CGTT_SCLK_OVERRIDE_MASK | + RLC_CGTT_MGCG_OVERRIDE__GFXIP_MGCG_OVERRIDE_MASK); + + if (def != data) + WREG32_SOC15(GC, 0, regRLC_CGTT_MGCG_OVERRIDE, data); + } + } else { + if (adev->cg_flags & AMD_CG_SUPPORT_GFX_MGCG) { + def = data = RREG32_SOC15(GC, 0, regRLC_CGTT_MGCG_OVERRIDE); + + data |= (RLC_CGTT_MGCG_OVERRIDE__RLC_CGTT_SCLK_OVERRIDE_MASK | + RLC_CGTT_MGCG_OVERRIDE__GRBM_CGTT_SCLK_OVERRIDE_MASK | + RLC_CGTT_MGCG_OVERRIDE__GFXIP_MGCG_OVERRIDE_MASK); + + if (def != data) + WREG32_SOC15(GC, 0, regRLC_CGTT_MGCG_OVERRIDE, data); + } + } } static void gfx_v12_0_update_repeater_fgcg(struct amdgpu_device *adev, |