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drm/amd/amdgpu: sdma resume fail during S4 on CI

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SDMA could be fail in the thaw() and restore() processes, do software reset
if each SDMA engine is busy.

Signed-off-by: JimQu <Jim.Qu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
jimqu 2016-08-30 08:59:42 +08:00 committed by Alex Deucher
parent 279cf3f238
commit 10ea943406
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/amdgpu/cik_sdma.c
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@ -52,6 +52,7 @@ static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev);
static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev);
static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev);
static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev);
static int cik_sdma_soft_reset(void *handle);
MODULE_FIRMWARE("radeon/bonaire_sdma.bin");
MODULE_FIRMWARE("radeon/bonaire_sdma1.bin");
@ -1037,6 +1038,8 @@ static int cik_sdma_resume(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
cik_sdma_soft_reset(handle);
return cik_sdma_hw_init(adev);
}