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drm/amdkfd: debug message to count successfully migrated pages

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Not all migrate.cpages returned from migrate_vma_setup can be migrated,
for example non anonymous page, or out of device memory. So after
migrate_vma_pages returns, add debug message to count pages are
successfully migrated which has MIGRATE_PFN_VALID and
MIGRATE_PFN_MIGRATE flag set.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Philip Yang 2021-10-20 17:26:49 -04:00 committed by Alex Deucher
parent 75fa98d6e4
commit 33c6bd989d
1 changed files with 21 additions and 0 deletions
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21
drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
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@ -268,6 +268,19 @@ static void svm_migrate_put_sys_page(unsigned long addr)
put_page(page);
}
static unsigned long svm_migrate_successful_pages(struct migrate_vma *migrate)
{
unsigned long cpages = 0;
unsigned long i;
for (i = 0; i < migrate->npages; i++) {
if (migrate->src[i] & MIGRATE_PFN_VALID &&
migrate->src[i] & MIGRATE_PFN_MIGRATE)
cpages++;
}
return cpages;
}
static int
svm_migrate_copy_to_vram(struct amdgpu_device *adev, struct svm_range *prange,
struct migrate_vma *migrate, struct dma_fence **mfence,
@ -429,6 +442,10 @@ svm_migrate_vma_to_vram(struct amdgpu_device *adev, struct svm_range *prange,
r = svm_migrate_copy_to_vram(adev, prange, &migrate, &mfence, scratch);
migrate_vma_pages(&migrate);
pr_debug("successful/cpages/npages 0x%lx/0x%lx/0x%lx\n",
svm_migrate_successful_pages(&migrate), cpages, migrate.npages);
svm_migrate_copy_done(adev, mfence);
migrate_vma_finalize(&migrate);
@ -665,6 +682,10 @@ svm_migrate_vma_to_ram(struct amdgpu_device *adev, struct svm_range *prange,
r = svm_migrate_copy_to_ram(adev, prange, &migrate, &mfence,
scratch, npages);
migrate_vma_pages(&migrate);
pr_debug("successful/cpages/npages 0x%lx/0x%lx/0x%lx\n",
svm_migrate_successful_pages(&migrate), cpages, migrate.npages);
svm_migrate_copy_done(adev, mfence);
migrate_vma_finalize(&migrate);
svm_range_dma_unmap(adev->dev, scratch, 0, npages);