[Intel-xe] [PATCH] drm/xe: Use BO's GT to determine dma_offset when programming PTEs
Matthew Brost
matthew.brost at intel.com
Thu Mar 23 08:15:46 UTC 2023
Rather than using the passed in GT, use the BO's GT determine dma_offset
when programming PTEs as these two GT's could differ (i.e. mapping a BO
from a remote GT). The BO's GT is correct GT to use as this where BO
resides, while the passed in GT is where the mapping is created.
Signed-off-by: Matthew Brost <matthew.brost at intel.com>
---
drivers/gpu/drm/xe/xe_bo.c | 5 +++++
drivers/gpu/drm/xe/xe_bo.h | 1 +
drivers/gpu/drm/xe/xe_pt.c | 4 +++-
3 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c
index 764b3ca9fff7..8beb35aa6f15 100644
--- a/drivers/gpu/drm/xe/xe_bo.c
+++ b/drivers/gpu/drm/xe/xe_bo.c
@@ -79,6 +79,11 @@ mem_type_to_gt(struct xe_device *xe, u32 mem_type)
return xe_device_get_gt(xe, mem_type == XE_PL_STOLEN ? 0 : (mem_type - XE_PL_VRAM0));
}
+struct xe_gt *xe_bo_to_gt(struct xe_bo *bo)
+{
+ return mem_type_to_gt(xe_bo_device(bo), bo->ttm.resource->mem_type);
+}
+
static void try_add_system(struct xe_bo *bo, struct ttm_place *places,
u32 bo_flags, u32 *c)
{
diff --git a/drivers/gpu/drm/xe/xe_bo.h b/drivers/gpu/drm/xe/xe_bo.h
index f4303810f213..f9abd8036417 100644
--- a/drivers/gpu/drm/xe/xe_bo.h
+++ b/drivers/gpu/drm/xe/xe_bo.h
@@ -105,6 +105,7 @@ struct xe_bo *xe_bo_create_from_data(struct xe_device *xe, struct xe_gt *gt,
int xe_bo_placement_for_flags(struct xe_device *xe, struct xe_bo *bo,
u32 bo_flags);
+struct xe_gt *xe_bo_to_gt(struct xe_bo *bo);
static inline struct xe_bo *ttm_to_xe_bo(const struct ttm_buffer_object *bo)
{
diff --git a/drivers/gpu/drm/xe/xe_pt.c b/drivers/gpu/drm/xe/xe_pt.c
index a2e586ebd9a8..6dc31b030687 100644
--- a/drivers/gpu/drm/xe/xe_pt.c
+++ b/drivers/gpu/drm/xe/xe_pt.c
@@ -792,10 +792,12 @@ xe_pt_stage_bind(struct xe_gt *gt, struct xe_vma *vma,
int ret;
if (is_vram) {
+ struct xe_gt *bo_gt = xe_bo_to_gt(bo);
+
xe_walk.default_pte = GEN12_PPGTT_PTE_LM;
if (vma && vma->gpuva.flags & XE_VMA_ATOMIC_PTE_BIT)
xe_walk.default_pte |= GEN12_USM_PPGTT_PTE_AE;
- xe_walk.dma_offset = gt->mem.vram.io_start -
+ xe_walk.dma_offset = bo_gt->mem.vram.io_start -
gt_to_xe(gt)->mem.vram.io_start;
xe_walk.cache = XE_CACHE_WB;
} else {
--
2.34.1
More information about the Intel-xe
mailing list