[Intel-xe] [PATCH 1/2] drm/xe: Set AE PTE bit if enabled on smem

[Nirmoy Das]

Set AE PTE bit on smem if the platform is supported and
enabled device scoped atomics on system memory by a
user with madvise ioctl.

Signed-off-by: Nirmoy Das <nirmoy.das at intel.com>
---
 drivers/gpu/drm/xe/xe_pt.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_pt.c b/drivers/gpu/drm/xe/xe_pt.c
index 457f1363ec67..d43c91cf4776 100644
--- a/drivers/gpu/drm/xe/xe_pt.c
+++ b/drivers/gpu/drm/xe/xe_pt.c
@@ -774,6 +774,10 @@ xe_pt_stage_bind(struct xe_tile *tile, struct xe_vma *vma,
 		xe_walk.dma_offset = vram_region_gpu_offset(bo->ttm.resource);
 		xe_walk.cache = XE_CACHE_WB;
 	} else {
+		if (tile_to_xe(tile)->info.platform != XE_PVC &&
+		    (vma && vma->gpuva.flags & XE_VMA_ATOMIC_PTE_BIT))
+			xe_walk.default_pte |= XE_USM_PPGTT_PTE_AE;
+
 		if (!xe_vma_has_no_bo(vma) && bo->flags & XE_BO_SCANOUT_BIT)
 			xe_walk.cache = XE_CACHE_WT;
 		else
-- 
2.39.0