From bf756fb833cbe8c6881c964f09db718bade6e591 Mon Sep 17 00:00:00 2001 From: Evan Quan Date: Tue, 17 Aug 2021 14:06:21 +0800 Subject: [PATCH] drm/amdgpu: add missing cleanups for Polaris12 UVD/VCE on suspend Perform proper cleanups on UVD/VCE suspend: powergate enablement, clockgating enablement and dpm disablement. This can fix some hangs observed on suspending when UVD/VCE still using(e.g. issue "pm-suspend" when video is still playing). Signed-off-by: Evan Quan Signed-off-by: xinhui pan Reviewed-by: Guchun Chen Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c | 24 ++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/vce_v3_0.c | 23 +++++++++++++++++++++++ 2 files changed, 47 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c index cf3803f8f075..bc571833632e 100644 --- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c +++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c @@ -543,6 +543,30 @@ static int uvd_v6_0_hw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; + /* + * Proper cleanups before halting the HW engine: + * - cancel the delayed idle work + * - enable powergating + * - enable clockgating + * - disable dpm + * + * TODO: to align with the VCN implementation, move the + * jobs for clockgating/powergating/dpm setting to + * ->set_powergating_state(). + */ + cancel_delayed_work_sync(&adev->uvd.idle_work); + + if (adev->pm.dpm_enabled) { + amdgpu_dpm_enable_uvd(adev, false); + } else { + amdgpu_asic_set_uvd_clocks(adev, 0, 0); + /* shutdown the UVD block */ + amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_UVD, + AMD_PG_STATE_GATE); + amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_UVD, + AMD_CG_STATE_GATE); + } + if (RREG32(mmUVD_STATUS) != 0) uvd_v6_0_stop(adev); diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c index 3b82fb289ef6..9de66893ccd6 100644 --- a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c @@ -490,6 +490,29 @@ static int vce_v3_0_hw_fini(void *handle) int r; struct amdgpu_device *adev = (struct amdgpu_device *)handle; + /* + * Proper cleanups before halting the HW engine: + * - cancel the delayed idle work + * - enable powergating + * - enable clockgating + * - disable dpm + * + * TODO: to align with the VCN implementation, move the + * jobs for clockgating/powergating/dpm setting to + * ->set_powergating_state(). + */ + cancel_delayed_work_sync(&adev->vce.idle_work); + + if (adev->pm.dpm_enabled) { + amdgpu_dpm_enable_vce(adev, false); + } else { + amdgpu_asic_set_vce_clocks(adev, 0, 0); + amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCE, + AMD_PG_STATE_GATE); + amdgpu_device_ip_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_VCE, + AMD_CG_STATE_GATE); + } + r = vce_v3_0_wait_for_idle(handle); if (r) return r; -- 2.11.0