From 3c3a7e616c02cbf0ffcd5888ceffb24e7ac73ad6 Mon Sep 17 00:00:00 2001 From: Rex Zhu Date: Wed, 23 Nov 2016 18:09:22 +0800 Subject: [PATCH] drm/amdgpu: fix bug mclk can't change on Polaris MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit the root cause is we gate the clock to uvd vcpu. mclk's change should need the response from uvd if it is power on. Signed-off-by: Rex Zhu Acked-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c | 6 ++++-- drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c | 5 ++++- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c index 95cabeafc18e..a79e283590fb 100644 --- a/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c +++ b/drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c @@ -640,7 +640,7 @@ static void uvd_v5_0_enable_clock_gating(struct amdgpu_device *adev, bool enable UVD_SUVD_CGC_GATE__SDB_MASK; if (enable) { - data3 |= (UVD_CGC_GATE__SYS_MASK | + data3 |= (UVD_CGC_GATE__SYS_MASK | UVD_CGC_GATE__UDEC_MASK | UVD_CGC_GATE__MPEG2_MASK | UVD_CGC_GATE__RBC_MASK | @@ -656,9 +656,11 @@ static void uvd_v5_0_enable_clock_gating(struct amdgpu_device *adev, bool enable UVD_CGC_GATE__UDEC_DB_MASK | UVD_CGC_GATE__UDEC_MP_MASK | UVD_CGC_GATE__WCB_MASK | - UVD_CGC_GATE__VCPU_MASK | UVD_CGC_GATE__JPEG_MASK | UVD_CGC_GATE__SCPU_MASK); + /* only in pg enabled, we can gate clock to vcpu*/ + if (adev->pg_flags & AMD_PG_SUPPORT_UVD) + data3 |= UVD_CGC_GATE__VCPU_MASK; data3 &= ~UVD_CGC_GATE__REGS_MASK; data1 |= suvd_flags; } else { diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c index c697a73b872b..ba0bbf7138dc 100644 --- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c @@ -879,10 +879,13 @@ static void uvd_v6_0_enable_clock_gating(struct amdgpu_device *adev, bool enable UVD_CGC_GATE__UDEC_DB_MASK | UVD_CGC_GATE__UDEC_MP_MASK | UVD_CGC_GATE__WCB_MASK | - UVD_CGC_GATE__VCPU_MASK | UVD_CGC_GATE__JPEG_MASK | UVD_CGC_GATE__SCPU_MASK | UVD_CGC_GATE__JPEG2_MASK); + /* only in pg enabled, we can gate clock to vcpu*/ + if (adev->pg_flags & AMD_PG_SUPPORT_UVD) + data3 |= UVD_CGC_GATE__VCPU_MASK; + data3 &= ~UVD_CGC_GATE__REGS_MASK; } else { data3 = 0; -- 2.20.1