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drm/xe: Extract xe_bo_is_visible_vram

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This will make it possible to call from xe_display code.

Reviewed-by: Francois Dugast <francois.dugast@intel.com>
Link: https://lore.kernel.org/r/20251016075701.379023-2-jfalempe@redhat.com
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
This commit is contained in:
Maarten Lankhorst
2025-10-16 09:52:30 +02:00
parent e681ddca30
commit 088267723a
2 changed files with 19 additions and 1 deletions
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19
drivers/gpu/drm/xe/xe_bo.c
View File

@@ -609,6 +609,23 @@ static bool xe_ttm_resource_visible(struct ttm_resource *mem)
return vres->used_visible_size == mem->size;
}
/**
* xe_bo_is_visible_vram - check if BO is placed entirely in visible VRAM.
* @bo: The BO
*
* This function checks whether a given BO resides entirely in memory visible from the CPU
*
* Returns: true if the BO is entirely visible, false otherwise.
*
*/
bool xe_bo_is_visible_vram(struct xe_bo *bo)
{
if (drm_WARN_ON(bo->ttm.base.dev, !xe_bo_is_vram(bo)))
return false;
return xe_ttm_resource_visible(bo->ttm.resource);
}
static int xe_ttm_io_mem_reserve(struct ttm_device *bdev,
struct ttm_resource *mem)
{
@@ -1634,7 +1651,7 @@ static int xe_ttm_access_memory(struct ttm_buffer_object *ttm_bo,
if (!mem_type_is_vram(ttm_bo->resource->mem_type))
return -EIO;
if (!xe_ttm_resource_visible(ttm_bo->resource) || len >= SZ_16K) {
if (!xe_bo_is_visible_vram(bo) || len >= SZ_16K) {
struct xe_migrate *migrate =
mem_type_to_migrate(xe, ttm_bo->resource->mem_type);

1
drivers/gpu/drm/xe/xe_bo.h
View File

@@ -274,6 +274,7 @@ int xe_bo_read(struct xe_bo *bo, u64 offset, void *dst, int size);
bool mem_type_is_vram(u32 mem_type);
bool xe_bo_is_vram(struct xe_bo *bo);
bool xe_bo_is_visible_vram(struct xe_bo *bo);
bool xe_bo_is_stolen(struct xe_bo *bo);
bool xe_bo_is_stolen_devmem(struct xe_bo *bo);
bool xe_bo_is_vm_bound(struct xe_bo *bo);