uapi/drm/i915: Document memory residency and Flat-CCS capability of obj

[linux-block.git] / drivers / gpu / drm / drm_gem_shmem_helper.c

diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index 621924116eb4a6fb2e6f0dfd156bdbc92e4dd551..8ad0e02991ca00b9b8a17119fdcdcccc37a2c97e 100644 (file)
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -46,6 +46,7 @@ static const struct drm_gem_object_funcs drm_gem_shmem_funcs = {
        .vmap = drm_gem_shmem_object_vmap,
        .vunmap = drm_gem_shmem_object_vunmap,
        .mmap = drm_gem_shmem_object_mmap,
+       .vm_ops = &drm_gem_shmem_vm_ops,
 };
 
 static struct drm_gem_shmem_object *
@@ -286,13 +287,14 @@ void drm_gem_shmem_unpin(struct drm_gem_shmem_object *shmem)
 }
 EXPORT_SYMBOL(drm_gem_shmem_unpin);
 
-static int drm_gem_shmem_vmap_locked(struct drm_gem_shmem_object *shmem, struct dma_buf_map *map)
+static int drm_gem_shmem_vmap_locked(struct drm_gem_shmem_object *shmem,
+                                    struct iosys_map *map)
 {
        struct drm_gem_object *obj = &shmem->base;
        int ret = 0;
 
        if (shmem->vmap_use_count++ > 0) {
-               dma_buf_map_set_vaddr(map, shmem->vaddr);
+               iosys_map_set_vaddr(map, shmem->vaddr);
                return 0;
        }
 
@@ -319,7 +321,7 @@ static int drm_gem_shmem_vmap_locked(struct drm_gem_shmem_object *shmem, struct
                if (!shmem->vaddr)
                        ret = -ENOMEM;
                else
-                       dma_buf_map_set_vaddr(map, shmem->vaddr);
+                       iosys_map_set_vaddr(map, shmem->vaddr);
        }
 
        if (ret) {
@@ -353,7 +355,8 @@ err_zero_use:
  * Returns:
  * 0 on success or a negative error code on failure.
  */
-int drm_gem_shmem_vmap(struct drm_gem_shmem_object *shmem, struct dma_buf_map *map)
+int drm_gem_shmem_vmap(struct drm_gem_shmem_object *shmem,
+                      struct iosys_map *map)
 {
        int ret;
 
@@ -368,7 +371,7 @@ int drm_gem_shmem_vmap(struct drm_gem_shmem_object *shmem, struct dma_buf_map *m
 EXPORT_SYMBOL(drm_gem_shmem_vmap);
 
 static void drm_gem_shmem_vunmap_locked(struct drm_gem_shmem_object *shmem,
-                                       struct dma_buf_map *map)
+                                       struct iosys_map *map)
 {
        struct drm_gem_object *obj = &shmem->base;
 
@@ -400,7 +403,8 @@ static void drm_gem_shmem_vunmap_locked(struct drm_gem_shmem_object *shmem,
  * This function hides the differences between dma-buf imported and natively
  * allocated objects.
  */
-void drm_gem_shmem_vunmap(struct drm_gem_shmem_object *shmem, struct dma_buf_map *map)
+void drm_gem_shmem_vunmap(struct drm_gem_shmem_object *shmem,
+                         struct iosys_map *map)
 {
        mutex_lock(&shmem->vmap_lock);
        drm_gem_shmem_vunmap_locked(shmem, map);
@@ -585,11 +589,12 @@ static void drm_gem_shmem_vm_close(struct vm_area_struct *vma)
        drm_gem_vm_close(vma);
 }
 
-static const struct vm_operations_struct drm_gem_shmem_vm_ops = {
+const struct vm_operations_struct drm_gem_shmem_vm_ops = {
        .fault = drm_gem_shmem_fault,
        .open = drm_gem_shmem_vm_open,
        .close = drm_gem_shmem_vm_close,
 };
+EXPORT_SYMBOL_GPL(drm_gem_shmem_vm_ops);
 
 /**
  * drm_gem_shmem_mmap - Memory-map a shmem GEM object
@@ -621,11 +626,10 @@ int drm_gem_shmem_mmap(struct drm_gem_shmem_object *shmem, struct vm_area_struct
                return ret;
        }
 
-       vma->vm_flags |= VM_PFNMAP | VM_DONTEXPAND;
+       vma->vm_flags |= VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP;
        vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
        if (shmem->map_wc)
                vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
-       vma->vm_ops = &drm_gem_shmem_vm_ops;
 
        return 0;
 }