diff options
| author | Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com> | 2025-08-14 16:59:50 +0200 |
|---|---|---|
| committer | Michał Winiarski <michal.winiarski@intel.com> | 2025-08-28 13:21:20 +0200 |
| commit | 12267f831fa6fe679019d09c48089941908b7cf3 (patch) | |
| tree | 56124244760221b408db70de6250ccca7a90c87e | |
| parent | 81a45cb7ea31a59777af294de590eea66ab80691 (diff) | |
drm/xe/tests: Make cross-device dma-buf BOs CPU-visible on small BAR
Small-BAR systems (e.g., SR-IOV VFs in VMs) expose only a subset of
VRAM via PCI/BAR. Exporting a BO outside that window fails, and the
selftests also do CPU fill/verify.
Set XE_BO_FLAG_NEEDS_CPU_ACCESS for cross-device variants to force
CPU-mappable placement and keep tests reliable. Large-BAR/P2P setups
are unaffected.
Suggested-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://lore.kernel.org/r/20250814145950.430231-1-marcin.bernatowicz@linux.intel.com
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
| -rw-r--r-- | drivers/gpu/drm/xe/tests/xe_dma_buf.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/xe/tests/xe_dma_buf.c b/drivers/gpu/drm/xe/tests/xe_dma_buf.c index cde9530bef8c..3c5ad8cc65a0 100644 --- a/drivers/gpu/drm/xe/tests/xe_dma_buf.c +++ b/drivers/gpu/drm/xe/tests/xe_dma_buf.c @@ -204,7 +204,7 @@ static const struct dma_buf_attach_ops nop2p_attach_ops = { static const struct dma_buf_test_params test_params[] = { {.mem_mask = XE_BO_FLAG_VRAM0, .attach_ops = &xe_dma_buf_attach_ops}, - {.mem_mask = XE_BO_FLAG_VRAM0, + {.mem_mask = XE_BO_FLAG_VRAM0 | XE_BO_FLAG_NEEDS_CPU_ACCESS, .attach_ops = &xe_dma_buf_attach_ops, .force_different_devices = true}, @@ -236,7 +236,8 @@ static const struct dma_buf_test_params test_params[] = { {.mem_mask = XE_BO_FLAG_SYSTEM | XE_BO_FLAG_VRAM0, .attach_ops = &xe_dma_buf_attach_ops}, - {.mem_mask = XE_BO_FLAG_SYSTEM | XE_BO_FLAG_VRAM0, + {.mem_mask = XE_BO_FLAG_SYSTEM | XE_BO_FLAG_VRAM0 | + XE_BO_FLAG_NEEDS_CPU_ACCESS, .attach_ops = &xe_dma_buf_attach_ops, .force_different_devices = true}, |