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drm/amdgpu: add gart recovery by gtt list V2

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V2:
a. gart recovery should be ahead of ring test.
b. rename to amdgpu_ttm_recover_gart

Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Chunming Zhou 2016-08-30 16:36:25 +08:00 committed by Alex Deucher
parent 5c1354bd30
commit 2c0d7318c8
3 changed files with 31 additions and 0 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -620,6 +620,7 @@ void amdgpu_gart_unbind(struct amdgpu_device *adev, unsigned offset,
int amdgpu_gart_bind(struct amdgpu_device *adev, unsigned offset,
int pages, struct page **pagelist,
dma_addr_t *dma_addr, uint32_t flags);
int amdgpu_ttm_recover_gart(struct amdgpu_device *adev);
/*
* GPU MC structures, functions & helpers

5
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@ -2206,6 +2206,11 @@ int amdgpu_gpu_reset(struct amdgpu_device *adev)
}
if (!r) {
amdgpu_irq_gpu_reset_resume_helper(adev);
if (need_full_reset && amdgpu_need_backup(adev)) {
r = amdgpu_ttm_recover_gart(adev);
if (r)
DRM_ERROR("gart recovery failed!!!\n");
}
r = amdgpu_ib_ring_tests(adev);
if (r) {
dev_err(adev->dev, "ib ring test failed (%d).\n", r);

25
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@ -673,6 +673,31 @@ static int amdgpu_ttm_backend_bind(struct ttm_tt *ttm,
return 0;
}
int amdgpu_ttm_recover_gart(struct amdgpu_device *adev)
{
struct amdgpu_ttm_tt *gtt, *tmp;
struct ttm_mem_reg bo_mem;
uint32_t flags;
int r;
bo_mem.mem_type = TTM_PL_TT;
spin_lock(&adev->gtt_list_lock);
list_for_each_entry_safe(gtt, tmp, &adev->gtt_list, list) {
flags = amdgpu_ttm_tt_pte_flags(gtt->adev, &gtt->ttm.ttm, &bo_mem);
r = amdgpu_gart_bind(adev, gtt->offset, gtt->ttm.ttm.num_pages,
gtt->ttm.ttm.pages, gtt->ttm.dma_address,
flags);
if (r) {
spin_unlock(&adev->gtt_list_lock);
DRM_ERROR("failed to bind %lu pages at 0x%08X\n",
gtt->ttm.ttm.num_pages, (unsigned)gtt->offset);
return r;
}
}
spin_unlock(&adev->gtt_list_lock);
return 0;
}
static int amdgpu_ttm_backend_unbind(struct ttm_tt *ttm)
{
struct amdgpu_ttm_tt *gtt = (void *)ttm;