diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c | 50 |
1 files changed, 39 insertions, 11 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c index 7fbbdb1e58da..7a366418d5f4 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c @@ -288,14 +288,14 @@ static void vcn_v1_0_mc_resume(struct amdgpu_device *adev) * * Disable clock gating for VCN block */ -static void vcn_v1_0_disable_clock_gating(struct amdgpu_device *adev, bool sw) +static void vcn_v1_0_disable_clock_gating(struct amdgpu_device *adev) { uint32_t data; /* JPEG disable CGC */ data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL); - if (sw) + if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG) data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT; else data &= ~JPEG_CGC_CTRL__DYN_CLOCK_MODE_MASK; @@ -310,7 +310,7 @@ static void vcn_v1_0_disable_clock_gating(struct amdgpu_device *adev, bool sw) /* UVD disable CGC */ data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL); - if (sw) + if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG) data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT; else data &= ~ UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK; @@ -415,13 +415,13 @@ static void vcn_v1_0_disable_clock_gating(struct amdgpu_device *adev, bool sw) * * Enable clock gating for VCN block */ -static void vcn_v1_0_enable_clock_gating(struct amdgpu_device *adev, bool sw) +static void vcn_v1_0_enable_clock_gating(struct amdgpu_device *adev) { uint32_t data = 0; /* enable JPEG CGC */ data = RREG32_SOC15(VCN, 0, mmJPEG_CGC_CTRL); - if (sw) + if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG) data |= 1 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT; else data |= 0 << JPEG_CGC_CTRL__DYN_CLOCK_MODE__SHIFT; @@ -435,7 +435,7 @@ static void vcn_v1_0_enable_clock_gating(struct amdgpu_device *adev, bool sw) /* enable UVD CGC */ data = RREG32_SOC15(VCN, 0, mmUVD_CGC_CTRL); - if (sw) + if (adev->cg_flags & AMD_CG_SUPPORT_VCN_MGCG) data |= 1 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT; else data |= 0 << UVD_CGC_CTRL__DYN_CLOCK_MODE__SHIFT; @@ -500,7 +500,7 @@ static int vcn_v1_0_start(struct amdgpu_device *adev) vcn_v1_0_mc_resume(adev); /* disable clock gating */ - vcn_v1_0_disable_clock_gating(adev, true); + vcn_v1_0_disable_clock_gating(adev); /* disable interupt */ WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_MASTINT_EN), 0, @@ -681,15 +681,43 @@ static int vcn_v1_0_stop(struct amdgpu_device *adev) ~UVD_LMI_CTRL2__STALL_ARB_UMC_MASK); /* enable clock gating */ - vcn_v1_0_enable_clock_gating(adev, true); + vcn_v1_0_enable_clock_gating(adev); return 0; } +bool vcn_v1_0_is_idle(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + return (RREG32_SOC15(VCN, 0, mmUVD_STATUS) == 0x2); +} + +int vcn_v1_0_wait_for_idle(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + int ret = 0; + + SOC15_WAIT_ON_RREG(VCN, 0, mmUVD_STATUS, 0x2, 0x2, ret); + + return ret; +} + static int vcn_v1_0_set_clockgating_state(void *handle, enum amd_clockgating_state state) { - /* needed for driver unload*/ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + bool enable = (state == AMD_CG_STATE_GATE) ? true : false; + + if (enable) { + /* wait for STATUS to clear */ + if (vcn_v1_0_is_idle(handle)) + return -EBUSY; + vcn_v1_0_enable_clock_gating(adev); + } else { + /* disable HW gating and enable Sw gating */ + vcn_v1_0_disable_clock_gating(adev); + } return 0; } @@ -1072,8 +1100,8 @@ static const struct amd_ip_funcs vcn_v1_0_ip_funcs = { .hw_fini = vcn_v1_0_hw_fini, .suspend = vcn_v1_0_suspend, .resume = vcn_v1_0_resume, - .is_idle = NULL /* vcn_v1_0_is_idle */, - .wait_for_idle = NULL /* vcn_v1_0_wait_for_idle */, + .is_idle = vcn_v1_0_is_idle, + .wait_for_idle = vcn_v1_0_wait_for_idle, .check_soft_reset = NULL /* vcn_v1_0_check_soft_reset */, .pre_soft_reset = NULL /* vcn_v1_0_pre_soft_reset */, .soft_reset = NULL /* vcn_v1_0_soft_reset */, |