drm/xe: Extract xe_bo_is_visible_vram

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>

diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c
index a1302afb31b97142cc686b684400e403982b6e97..66ed888bba0765178bd53fea0ad38c7d86e4fd86 100644 (file)
--- a/drivers/gpu/drm/xe/xe_bo.c
+++ b/drivers/gpu/drm/xe/xe_bo.c
@@ -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);
 

diff --git a/drivers/gpu/drm/xe/xe_bo.h b/drivers/gpu/drm/xe/xe_bo.h
index 353d607d301da5dfce6a6aa83b25673f5b0af67c..911d5b90461a26336493e175e3097d5ebc2f05d6 100644 (file)
--- a/drivers/gpu/drm/xe/xe_bo.h
+++ b/drivers/gpu/drm/xe/xe_bo.h
@@ -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);