diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/vce_v3_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vce_v3_0.c | 149 |
1 files changed, 148 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c index 370c6c9d81c2..35f48ad7644d 100644 --- a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c @@ -103,6 +103,108 @@ static void vce_v3_0_ring_set_wptr(struct amdgpu_ring *ring) WREG32(mmVCE_RB_WPTR2, ring->wptr); } +static void vce_v3_0_override_vce_clock_gating(struct amdgpu_device *adev, bool override) +{ + u32 tmp, data; + + tmp = data = RREG32(mmVCE_RB_ARB_CTRL); + if (override) + data |= VCE_RB_ARB_CTRL__VCE_CGTT_OVERRIDE_MASK; + else + data &= ~VCE_RB_ARB_CTRL__VCE_CGTT_OVERRIDE_MASK; + + if (tmp != data) + WREG32(mmVCE_RB_ARB_CTRL, data); +} + +static void vce_v3_0_set_vce_sw_clock_gating(struct amdgpu_device *adev, + bool gated) +{ + u32 tmp, data; + /* Set Override to disable Clock Gating */ + vce_v3_0_override_vce_clock_gating(adev, true); + + if (!gated) { + /* Force CLOCK ON for VCE_CLOCK_GATING_B, + * {*_FORCE_ON, *_FORCE_OFF} = {1, 0} + * VREG can be FORCE ON or set to Dynamic, but can't be OFF + */ + tmp = data = RREG32(mmVCE_CLOCK_GATING_B); + data |= 0x1ff; + data &= ~0xef0000; + if (tmp != data) + WREG32(mmVCE_CLOCK_GATING_B, data); + + /* Force CLOCK ON for VCE_UENC_CLOCK_GATING, + * {*_FORCE_ON, *_FORCE_OFF} = {1, 0} + */ + tmp = data = RREG32(mmVCE_UENC_CLOCK_GATING); + data |= 0x3ff000; + data &= ~0xffc00000; + if (tmp != data) + WREG32(mmVCE_UENC_CLOCK_GATING, data); + + /* set VCE_UENC_CLOCK_GATING_2 */ + tmp = data = RREG32(mmVCE_UENC_CLOCK_GATING_2); + data |= 0x2; + data &= ~0x2; + if (tmp != data) + WREG32(mmVCE_UENC_CLOCK_GATING_2, data); + + /* Force CLOCK ON for VCE_UENC_REG_CLOCK_GATING */ + tmp = data = RREG32(mmVCE_UENC_REG_CLOCK_GATING); + data |= 0x37f; + if (tmp != data) + WREG32(mmVCE_UENC_REG_CLOCK_GATING, data); + + /* Force VCE_UENC_DMA_DCLK_CTRL Clock ON */ + tmp = data = RREG32(mmVCE_UENC_DMA_DCLK_CTRL); + data |= VCE_UENC_DMA_DCLK_CTRL__WRDMCLK_FORCEON_MASK | + VCE_UENC_DMA_DCLK_CTRL__RDDMCLK_FORCEON_MASK | + VCE_UENC_DMA_DCLK_CTRL__REGCLK_FORCEON_MASK | + 0x8; + if (tmp != data) + WREG32(mmVCE_UENC_DMA_DCLK_CTRL, data); + } else { + /* Force CLOCK OFF for VCE_CLOCK_GATING_B, + * {*, *_FORCE_OFF} = {*, 1} + * set VREG to Dynamic, as it can't be OFF + */ + tmp = data = RREG32(mmVCE_CLOCK_GATING_B); + data &= ~0x80010; + data |= 0xe70008; + if (tmp != data) + WREG32(mmVCE_CLOCK_GATING_B, data); + /* Force CLOCK OFF for VCE_UENC_CLOCK_GATING, + * Force ClOCK OFF takes precedent over Force CLOCK ON setting. + * {*_FORCE_ON, *_FORCE_OFF} = {*, 1} + */ + tmp = data = RREG32(mmVCE_UENC_CLOCK_GATING); + data |= 0xffc00000; + if (tmp != data) + WREG32(mmVCE_UENC_CLOCK_GATING, data); + /* Set VCE_UENC_CLOCK_GATING_2 */ + tmp = data = RREG32(mmVCE_UENC_CLOCK_GATING_2); + data |= 0x10000; + if (tmp != data) + WREG32(mmVCE_UENC_CLOCK_GATING_2, data); + /* Set VCE_UENC_REG_CLOCK_GATING to dynamic */ + tmp = data = RREG32(mmVCE_UENC_REG_CLOCK_GATING); + data &= ~0xffc00000; + if (tmp != data) + WREG32(mmVCE_UENC_REG_CLOCK_GATING, data); + /* Set VCE_UENC_DMA_DCLK_CTRL CG always in dynamic mode */ + tmp = data = RREG32(mmVCE_UENC_DMA_DCLK_CTRL); + data &= ~(VCE_UENC_DMA_DCLK_CTRL__WRDMCLK_FORCEON_MASK | + VCE_UENC_DMA_DCLK_CTRL__RDDMCLK_FORCEON_MASK | + VCE_UENC_DMA_DCLK_CTRL__REGCLK_FORCEON_MASK | + 0x8); + if (tmp != data) + WREG32(mmVCE_UENC_DMA_DCLK_CTRL, data); + } + vce_v3_0_override_vce_clock_gating(adev, false); +} + /** * vce_v3_0_start - start VCE block * @@ -121,7 +223,7 @@ static int vce_v3_0_start(struct amdgpu_device *adev) if (adev->vce.harvest_config & (1 << idx)) continue; - if(idx == 0) + if (idx == 0) WREG32_P(mmGRBM_GFX_INDEX, 0, ~GRBM_GFX_INDEX__VCE_INSTANCE_MASK); else @@ -174,6 +276,10 @@ static int vce_v3_0_start(struct amdgpu_device *adev) /* clear BUSY flag */ WREG32_P(mmVCE_STATUS, 0, ~1); + /* Set Clock-Gating off */ + if (adev->cg_flags & AMDGPU_CG_SUPPORT_VCE_MGCG) + vce_v3_0_set_vce_sw_clock_gating(adev, false); + if (r) { DRM_ERROR("VCE not responding, giving up!!!\n"); mutex_unlock(&adev->grbm_idx_mutex); @@ -609,6 +715,47 @@ static int vce_v3_0_process_interrupt(struct amdgpu_device *adev, static int vce_v3_0_set_clockgating_state(void *handle, enum amd_clockgating_state state) { + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + bool enable = (state == AMD_CG_STATE_GATE) ? true : false; + int i; + + if (!(adev->cg_flags & AMDGPU_CG_SUPPORT_VCE_MGCG)) + return 0; + + mutex_lock(&adev->grbm_idx_mutex); + for (i = 0; i < 2; i++) { + /* Program VCE Instance 0 or 1 if not harvested */ + if (adev->vce.harvest_config & (1 << i)) + continue; + + if (i == 0) + WREG32_P(mmGRBM_GFX_INDEX, 0, + ~GRBM_GFX_INDEX__VCE_INSTANCE_MASK); + else + WREG32_P(mmGRBM_GFX_INDEX, + GRBM_GFX_INDEX__VCE_INSTANCE_MASK, + ~GRBM_GFX_INDEX__VCE_INSTANCE_MASK); + + if (enable) { + /* initialize VCE_CLOCK_GATING_A: Clock ON/OFF delay */ + uint32_t data = RREG32(mmVCE_CLOCK_GATING_A); + data &= ~(0xf | 0xff0); + data |= ((0x0 << 0) | (0x04 << 4)); + WREG32(mmVCE_CLOCK_GATING_A, data); + + /* initialize VCE_UENC_CLOCK_GATING: Clock ON/OFF delay */ + data = RREG32(mmVCE_UENC_CLOCK_GATING); + data &= ~(0xf | 0xff0); + data |= ((0x0 << 0) | (0x04 << 4)); + WREG32(mmVCE_UENC_CLOCK_GATING, data); + } + + vce_v3_0_set_vce_sw_clock_gating(adev, enable); + } + + WREG32_P(mmGRBM_GFX_INDEX, 0, ~GRBM_GFX_INDEX__VCE_INSTANCE_MASK); + mutex_unlock(&adev->grbm_idx_mutex); + return 0; } |