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authorAlex Sierra <alex.sierra@amd.com>2021-05-12 19:02:33 +0300
committerAlex Deucher <alexander.deucher@amd.com>2021-07-01 07:05:41 +0300
commit3bf8282c6b9454422a24b1c443ece80ab325c389 (patch)
treefec564f40601ed9982d5325029930834b001b1d6 /drivers/gpu
parent6ffecc946fada1c39455e89488dba57941e81659 (diff)
downloadlinux-3bf8282c6b9454422a24b1c443ece80ab325c389.tar.xz
drm/amdkfd: add invalid pages debug at vram migration
This is for debug purposes only. It conditionally generates partial migrations to test mixed CPU/GPU memory domain pages in a prange easily. Signed-off-by: Alex Sierra <alex.sierra@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/amd/amdkfd/kfd_migrate.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
index 610f33f7c2af..3a51384cd0a1 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_migrate.c
@@ -353,6 +353,20 @@ out_free_vram_pages:
}
}
+#ifdef DEBUG_FORCE_MIXED_DOMAINS
+ for (i = 0, j = 0; i < npages; i += 4, j++) {
+ if (j & 1)
+ continue;
+ svm_migrate_put_vram_page(adev, dst[i]);
+ migrate->dst[i] = 0;
+ svm_migrate_put_vram_page(adev, dst[i + 1]);
+ migrate->dst[i + 1] = 0;
+ svm_migrate_put_vram_page(adev, dst[i + 2]);
+ migrate->dst[i + 2] = 0;
+ svm_migrate_put_vram_page(adev, dst[i + 3]);
+ migrate->dst[i + 3] = 0;
+ }
+#endif
out:
return r;
}