@@ -17,6 +17,7 @@
#include "xe_bo.h"
#include "xe_device.h"
#include "xe_pm.h"
+#include "xe_sriov.h"
#include "xe_ttm_vram_mgr.h"
#include "xe_vm.h"
@@ -26,8 +27,11 @@ static int xe_dma_buf_attach(struct dma_buf *dmabuf,
struct dma_buf_attachment *attach)
{
struct drm_gem_object *obj = attach->dmabuf->priv;
+ struct xe_bo *bo = gem_to_xe_bo(obj);
+ struct xe_device *xe = xe_bo_device(bo);
if (attach->peer2peer &&
+ !IS_SRIOV_VF(xe) &&
pci_p2pdma_distance(to_pci_dev(obj->dev->dev), attach->dev, false) < 0)
attach->peer2peer = false;
@@ -51,7 +55,7 @@ static int xe_dma_buf_pin(struct dma_buf_attachment *attach)
struct drm_gem_object *obj = attach->dmabuf->priv;
struct xe_bo *bo = gem_to_xe_bo(obj);
struct xe_device *xe = xe_bo_device(bo);
- int ret;
+ int ret = 0;
/*
* For now only support pinning in TT memory, for two reasons:
@@ -63,7 +67,8 @@ static int xe_dma_buf_pin(struct dma_buf_attachment *attach)
return -EINVAL;
}
- ret = xe_bo_migrate(bo, XE_PL_TT);
+ if (!IS_SRIOV_VF(xe) || !attach->peer2peer)
+ ret = xe_bo_migrate(bo, XE_PL_TT);
if (ret) {
if (ret != -EINTR && ret != -ERESTARTSYS)
drm_dbg(&xe->drm,
If the importer has allow_peer2peer set to true, then we can expect that it would be able to handle VRAM addresses. Therefore, in this specific case and only while running in VF mode, do not migrate the BO to System RAM before exporting it. Signed-off-by: Vivek Kasireddy <vivek.kasireddy@intel.com> --- drivers/gpu/drm/xe/xe_dma_buf.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)