dma-buf-map: Rename to iosys-map

Rename struct dma_buf_map to struct iosys_map and corresponding APIs.
Over time dma-buf-map grew up to more functionality than the one used by
dma-buf: in fact it's just a shim layer to abstract system memory, that
can be accessed via regular load and store, from IO memory that needs to
be acessed via arch helpers.

The idea is to extend this API so it can fulfill other needs, internal
to a single driver. Example: in the i915 driver it's desired to share
the implementation for integrated graphics, which uses mostly system
memory, with discrete graphics, which may need to access IO memory.

The conversion was mostly done with the following semantic patch:

	@r1@
	@@
	- struct dma_buf_map
	+ struct iosys_map

	@r2@
	@@
	(
	- DMA_BUF_MAP_INIT_VADDR
	+ IOSYS_MAP_INIT_VADDR
	|
	- dma_buf_map_set_vaddr
	+ iosys_map_set_vaddr
	|
	- dma_buf_map_set_vaddr_iomem
	+ iosys_map_set_vaddr_iomem
	|
	- dma_buf_map_is_equal
	+ iosys_map_is_equal
	|
	- dma_buf_map_is_null
	+ iosys_map_is_null
	|
	- dma_buf_map_is_set
	+ iosys_map_is_set
	|
	- dma_buf_map_clear
	+ iosys_map_clear
	|
	- dma_buf_map_memcpy_to
	+ iosys_map_memcpy_to
	|
	- dma_buf_map_incr
	+ iosys_map_incr
	)

	@@
	@@
	- #include <linux/dma-buf-map.h>
	+ #include <linux/iosys-map.h>

Then some files had their includes adjusted and some comments were
update to remove mentions to dma-buf-map.

Since this is not specific to dma-buf anymore, move the documentation to
the "Bus-Independent Device Accesses" section.

v2:
  - Squash patches

v3:
  - Fix wrong removal of dma-buf.h from MAINTAINERS
  - Move documentation from dma-buf.rst to device-io.rst

v4:
  - Change documentation title and level
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220204170541.829227-1-lucas.demarchi@intel.com

Documentation/driver-api/device-io.rst

@@ -502,6 +502,15 @@ pcim_iomap()
 Not using these wrappers may make drivers unusable on certain platforms with
 stricter rules for mapping I/O memory.
 
+Generalizing Access to System and I/O Memory
+============================================
+
+.. kernel-doc:: include/linux/iosys-map.h
+   :doc: overview
+
+.. kernel-doc:: include/linux/iosys-map.h
+   :internal:
+
 Public Functions Provided
 =========================
 

Documentation/driver-api/dma-buf.rst

@@ -128,15 +128,6 @@ Kernel Functions and Structures Reference
 .. kernel-doc:: include/linux/dma-buf.h
    :internal:
 
-Buffer Mapping Helpers
-~~~~~~~~~~~~~~~~~~~~~~
-
-.. kernel-doc:: include/linux/dma-buf-map.h
-   :doc: overview
-
-.. kernel-doc:: include/linux/dma-buf-map.h
-   :internal:
-
 Reservation Objects
 -------------------
 

Documentation/gpu/todo.rst

@@ -222,7 +222,7 @@ Convert drivers to use drm_fbdev_generic_setup()
 Most drivers can use drm_fbdev_generic_setup(). Driver have to implement
 atomic modesetting and GEM vmap support. Historically, generic fbdev emulation
 expected the framebuffer in system memory or system-like memory. By employing
-struct dma_buf_map, drivers with frambuffers in I/O memory can be supported
+struct iosys_map, drivers with frambuffers in I/O memory can be supported
 as well.
 
 Contact: Maintainer of the driver you plan to convert
@@ -234,7 +234,7 @@ Reimplement functions in drm_fbdev_fb_ops without fbdev
 
 A number of callback functions in drm_fbdev_fb_ops could benefit from
 being rewritten without dependencies on the fbdev module. Some of the
-helpers could further benefit from using struct dma_buf_map instead of
+helpers could further benefit from using struct iosys_map instead of
 raw pointers.
 
 Contact: Thomas Zimmermann <tzimmermann@suse.de>, Daniel Vetter
@@ -434,19 +434,19 @@ Contact: Emil Velikov, respective driver maintainers
 
 Level: Intermediate
 
-Use struct dma_buf_map throughout codebase
-------------------------------------------
+Use struct iosys_map throughout codebase
+----------------------------------------
 
-Pointers to shared device memory are stored in struct dma_buf_map. Each
+Pointers to shared device memory are stored in struct iosys_map. Each
 instance knows whether it refers to system or I/O memory. Most of the DRM-wide
-interface have been converted to use struct dma_buf_map, but implementations
+interface have been converted to use struct iosys_map, but implementations
 often still use raw pointers.
 
-The task is to use struct dma_buf_map where it makes sense.
+The task is to use struct iosys_map where it makes sense.
 
-* Memory managers should use struct dma_buf_map for dma-buf-imported buffers.
-* TTM might benefit from using struct dma_buf_map internally.
-* Framebuffer copying and blitting helpers should operate on struct dma_buf_map.
+* Memory managers should use struct iosys_map for dma-buf-imported buffers.
+* TTM might benefit from using struct iosys_map internally.
+* Framebuffer copying and blitting helpers should operate on struct iosys_map.
 
 Contact: Thomas Zimmermann <tzimmermann@suse.de>, Christian König, Daniel Vetter
 

MAINTAINERS

@@ -5734,7 +5734,7 @@ T:	git git://anongit.freedesktop.org/drm/drm-misc
 F:	Documentation/driver-api/dma-buf.rst
 F:	drivers/dma-buf/
 F:	include/linux/*fence.h
-F:	include/linux/dma-buf*
+F:	include/linux/dma-buf.h
 F:	include/linux/dma-resv.h
 K:	\bdma_(?:buf|fence|resv)\b
 
@@ -10050,6 +10050,13 @@ F:	include/linux/iova.h
 F:	include/linux/of_iommu.h
 F:	include/uapi/linux/iommu.h
 
+IOSYS-MAP HELPERS
+M:	Thomas Zimmermann <tzimmermann@suse.de>
+L:	dri-devel@lists.freedesktop.org
+S:	Maintained
+T:	git git://anongit.freedesktop.org/drm/drm-misc
+F:	include/linux/iosys-map.h
+
 IO_URING
 M:	Jens Axboe <axboe@kernel.dk>
 R:	Pavel Begunkov <asml.silence@gmail.com>

drivers/dma-buf/dma-buf.c

@@ -1047,8 +1047,8 @@ EXPORT_SYMBOL_NS_GPL(dma_buf_move_notify, DMA_BUF);
  *
  *   Interfaces::
  *
- *      void \*dma_buf_vmap(struct dma_buf \*dmabuf, struct dma_buf_map \*map)
- *      void dma_buf_vunmap(struct dma_buf \*dmabuf, struct dma_buf_map \*map)
+ *      void \*dma_buf_vmap(struct dma_buf \*dmabuf, struct iosys_map \*map)
+ *      void dma_buf_vunmap(struct dma_buf \*dmabuf, struct iosys_map \*map)
  *
  *   The vmap call can fail if there is no vmap support in the exporter, or if
  *   it runs out of vmalloc space. Note that the dma-buf layer keeps a reference
@@ -1260,12 +1260,12 @@ EXPORT_SYMBOL_NS_GPL(dma_buf_mmap, DMA_BUF);
  *
  * Returns 0 on success, or a negative errno code otherwise.
  */
-int dma_buf_vmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
+int dma_buf_vmap(struct dma_buf *dmabuf, struct iosys_map *map)
 {
-	struct dma_buf_map ptr;
+	struct iosys_map ptr;
 	int ret = 0;
 
-	dma_buf_map_clear(map);
+	iosys_map_clear(map);
 
 	if (WARN_ON(!dmabuf))
 		return -EINVAL;
@@ -1276,12 +1276,12 @@ int dma_buf_vmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
 	mutex_lock(&dmabuf->lock);
 	if (dmabuf->vmapping_counter) {
 		dmabuf->vmapping_counter++;
-		BUG_ON(dma_buf_map_is_null(&dmabuf->vmap_ptr));
+		BUG_ON(iosys_map_is_null(&dmabuf->vmap_ptr));
 		*map = dmabuf->vmap_ptr;
 		goto out_unlock;
 	}
 
-	BUG_ON(dma_buf_map_is_set(&dmabuf->vmap_ptr));
+	BUG_ON(iosys_map_is_set(&dmabuf->vmap_ptr));
 
 	ret = dmabuf->ops->vmap(dmabuf, &ptr);
 	if (WARN_ON_ONCE(ret))
@@ -1303,20 +1303,20 @@ EXPORT_SYMBOL_NS_GPL(dma_buf_vmap, DMA_BUF);
  * @dmabuf:	[in]	buffer to vunmap
  * @map:	[in]	vmap pointer to vunmap
  */
-void dma_buf_vunmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
+void dma_buf_vunmap(struct dma_buf *dmabuf, struct iosys_map *map)
 {
 	if (WARN_ON(!dmabuf))
 		return;
 
-	BUG_ON(dma_buf_map_is_null(&dmabuf->vmap_ptr));
+	BUG_ON(iosys_map_is_null(&dmabuf->vmap_ptr));
 	BUG_ON(dmabuf->vmapping_counter == 0);
-	BUG_ON(!dma_buf_map_is_equal(&dmabuf->vmap_ptr, map));
+	BUG_ON(!iosys_map_is_equal(&dmabuf->vmap_ptr, map));
 
 	mutex_lock(&dmabuf->lock);
 	if (--dmabuf->vmapping_counter == 0) {
 		if (dmabuf->ops->vunmap)
 			dmabuf->ops->vunmap(dmabuf, map);
-		dma_buf_map_clear(&dmabuf->vmap_ptr);
+		iosys_map_clear(&dmabuf->vmap_ptr);
 	}
 	mutex_unlock(&dmabuf->lock);
 }

drivers/dma-buf/heaps/cma_heap.c

@@ -202,7 +202,7 @@ static void *cma_heap_do_vmap(struct cma_heap_buffer *buffer)
 	return vaddr;
 }
 
-static int cma_heap_vmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
+static int cma_heap_vmap(struct dma_buf *dmabuf, struct iosys_map *map)
 {
 	struct cma_heap_buffer *buffer = dmabuf->priv;
 	void *vaddr;
@@ -211,7 +211,7 @@ static int cma_heap_vmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
 	mutex_lock(&buffer->lock);
 	if (buffer->vmap_cnt) {
 		buffer->vmap_cnt++;
-		dma_buf_map_set_vaddr(map, buffer->vaddr);
+		iosys_map_set_vaddr(map, buffer->vaddr);
 		goto out;
 	}
 
@@ -222,14 +222,14 @@ static int cma_heap_vmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
 	}
 	buffer->vaddr = vaddr;
 	buffer->vmap_cnt++;
-	dma_buf_map_set_vaddr(map, buffer->vaddr);
+	iosys_map_set_vaddr(map, buffer->vaddr);
 out:
 	mutex_unlock(&buffer->lock);
 
 	return ret;
 }
 
-static void cma_heap_vunmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
+static void cma_heap_vunmap(struct dma_buf *dmabuf, struct iosys_map *map)
 {
 	struct cma_heap_buffer *buffer = dmabuf->priv;
 
@@ -239,7 +239,7 @@ static void cma_heap_vunmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
 		buffer->vaddr = NULL;
 	}
 	mutex_unlock(&buffer->lock);
-	dma_buf_map_clear(map);
+	iosys_map_clear(map);
 }
 
 static void cma_heap_dma_buf_release(struct dma_buf *dmabuf)

drivers/dma-buf/heaps/system_heap.c

@@ -241,7 +241,7 @@ static void *system_heap_do_vmap(struct system_heap_buffer *buffer)
 	return vaddr;
 }
 
-static int system_heap_vmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
+static int system_heap_vmap(struct dma_buf *dmabuf, struct iosys_map *map)
 {
 	struct system_heap_buffer *buffer = dmabuf->priv;
 	void *vaddr;
@@ -250,7 +250,7 @@ static int system_heap_vmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
 	mutex_lock(&buffer->lock);
 	if (buffer->vmap_cnt) {
 		buffer->vmap_cnt++;
-		dma_buf_map_set_vaddr(map, buffer->vaddr);
+		iosys_map_set_vaddr(map, buffer->vaddr);
 		goto out;
 	}
 
@@ -262,14 +262,14 @@ static int system_heap_vmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
 
 	buffer->vaddr = vaddr;
 	buffer->vmap_cnt++;
-	dma_buf_map_set_vaddr(map, buffer->vaddr);
+	iosys_map_set_vaddr(map, buffer->vaddr);
 out:
 	mutex_unlock(&buffer->lock);
 
 	return ret;
 }
 
-static void system_heap_vunmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
+static void system_heap_vunmap(struct dma_buf *dmabuf, struct iosys_map *map)
 {
 	struct system_heap_buffer *buffer = dmabuf->priv;
 
@@ -279,7 +279,7 @@ static void system_heap_vunmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
 		buffer->vaddr = NULL;
 	}
 	mutex_unlock(&buffer->lock);
-	dma_buf_map_clear(map);
+	iosys_map_clear(map);
 }
 
 static void system_heap_dma_buf_release(struct dma_buf *dmabuf)

drivers/gpu/drm/ast/ast_drv.h

@@ -107,7 +107,7 @@ struct ast_cursor_plane {
 
 	struct {
 		struct drm_gem_vram_object *gbo;
-		struct dma_buf_map map;
+		struct iosys_map map;
 		u64 off;
 	} hwc[AST_DEFAULT_HWC_NUM];
 

drivers/gpu/drm/ast/ast_mode.c

@@ -801,11 +801,11 @@ ast_cursor_plane_helper_atomic_update(struct drm_plane *plane,
 	struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(new_state);
 	struct drm_framebuffer *fb = new_state->fb;
 	struct ast_private *ast = to_ast_private(plane->dev);
-	struct dma_buf_map dst_map =
+	struct iosys_map dst_map =
 		ast_cursor_plane->hwc[ast_cursor_plane->next_hwc_index].map;
 	u64 dst_off =
 		ast_cursor_plane->hwc[ast_cursor_plane->next_hwc_index].off;
-	struct dma_buf_map src_map = shadow_plane_state->data[0];
+	struct iosys_map src_map = shadow_plane_state->data[0];
 	unsigned int offset_x, offset_y;
 	u16 x, y;
 	u8 x_offset, y_offset;
@@ -883,7 +883,7 @@ static void ast_cursor_plane_destroy(struct drm_plane *plane)
 	struct ast_cursor_plane *ast_cursor_plane = to_ast_cursor_plane(plane);
 	size_t i;
 	struct drm_gem_vram_object *gbo;
-	struct dma_buf_map map;
+	struct iosys_map map;
 
 	for (i = 0; i < ARRAY_SIZE(ast_cursor_plane->hwc); ++i) {
 		gbo = ast_cursor_plane->hwc[i].gbo;
@@ -910,7 +910,7 @@ static int ast_cursor_plane_init(struct ast_private *ast)
 	struct drm_plane *cursor_plane = &ast_cursor_plane->base;
 	size_t size, i;
 	struct drm_gem_vram_object *gbo;
-	struct dma_buf_map map;
+	struct iosys_map map;
 	int ret;
 	s64 off;
 

drivers/gpu/drm/drm_cache.c

@@ -28,10 +28,10 @@
  * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
  */
 
-#include <linux/dma-buf-map.h>
+#include <linux/cc_platform.h>
 #include <linux/export.h>
 #include <linux/highmem.h>
-#include <linux/cc_platform.h>
+#include <linux/iosys-map.h>
 #include <xen/xen.h>
 
 #include <drm/drm_cache.h>
@@ -214,14 +214,14 @@ bool drm_need_swiotlb(int dma_bits)
 }
 EXPORT_SYMBOL(drm_need_swiotlb);
 
-static void memcpy_fallback(struct dma_buf_map *dst,
-			    const struct dma_buf_map *src,
+static void memcpy_fallback(struct iosys_map *dst,
+			    const struct iosys_map *src,
 			    unsigned long len)
 {
 	if (!dst->is_iomem && !src->is_iomem) {
 		memcpy(dst->vaddr, src->vaddr, len);
 	} else if (!src->is_iomem) {
-		dma_buf_map_memcpy_to(dst, src->vaddr, len);
+		iosys_map_memcpy_to(dst, src->vaddr, len);
 	} else if (!dst->is_iomem) {
 		memcpy_fromio(dst->vaddr, src->vaddr_iomem, len);
 	} else {
@@ -305,8 +305,8 @@ static void __drm_memcpy_from_wc(void *dst, const void *src, unsigned long len)
  * Tries an arch optimized memcpy for prefetching reading out of a WC region,
  * and if no such beast is available, falls back to a normal memcpy.
  */
-void drm_memcpy_from_wc(struct dma_buf_map *dst,
-			const struct dma_buf_map *src,
+void drm_memcpy_from_wc(struct iosys_map *dst,
+			const struct iosys_map *src,
 			unsigned long len)
 {
 	if (WARN_ON(in_interrupt())) {
@@ -343,8 +343,8 @@ void drm_memcpy_init_early(void)
 		static_branch_enable(&has_movntdqa);
 }
 #else
-void drm_memcpy_from_wc(struct dma_buf_map *dst,
-			const struct dma_buf_map *src,
+void drm_memcpy_from_wc(struct iosys_map *dst,
+			const struct iosys_map *src,
 			unsigned long len)
 {
 	WARN_ON(in_interrupt());

drivers/gpu/drm/drm_client.c

@@ -3,7 +3,7 @@
  * Copyright 2018 Noralf Trønnes
  */
 
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 #include <linux/list.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
@@ -309,9 +309,10 @@ drm_client_buffer_create(struct drm_client_dev *client, u32 width, u32 height, u
  *	0 on success, or a negative errno code otherwise.
  */
 int
-drm_client_buffer_vmap(struct drm_client_buffer *buffer, struct dma_buf_map *map_copy)
+drm_client_buffer_vmap(struct drm_client_buffer *buffer,
+		       struct iosys_map *map_copy)
 {
-	struct dma_buf_map *map = &buffer->map;
+	struct iosys_map *map = &buffer->map;
 	int ret;
 
 	/*
@@ -342,7 +343,7 @@ EXPORT_SYMBOL(drm_client_buffer_vmap);
  */
 void drm_client_buffer_vunmap(struct drm_client_buffer *buffer)
 {
-	struct dma_buf_map *map = &buffer->map;
+	struct iosys_map *map = &buffer->map;
 
 	drm_gem_vunmap(buffer->gem, map);
 }

drivers/gpu/drm/drm_fb_helper.c

@@ -373,7 +373,7 @@ static void drm_fb_helper_resume_worker(struct work_struct *work)
 
 static void drm_fb_helper_damage_blit_real(struct drm_fb_helper *fb_helper,
 					   struct drm_clip_rect *clip,
-					   struct dma_buf_map *dst)
+					   struct iosys_map *dst)
 {
 	struct drm_framebuffer *fb = fb_helper->fb;
 	unsigned int cpp = fb->format->cpp[0];
@@ -382,11 +382,11 @@ static void drm_fb_helper_damage_blit_real(struct drm_fb_helper *fb_helper,
 	size_t len = (clip->x2 - clip->x1) * cpp;
 	unsigned int y;
 
-	dma_buf_map_incr(dst, offset); /* go to first pixel within clip rect */
+	iosys_map_incr(dst, offset); /* go to first pixel within clip rect */
 
 	for (y = clip->y1; y < clip->y2; y++) {
-		dma_buf_map_memcpy_to(dst, src, len);
-		dma_buf_map_incr(dst, fb->pitches[0]);
+		iosys_map_memcpy_to(dst, src, len);
+		iosys_map_incr(dst, fb->pitches[0]);
 		src += fb->pitches[0];
 	}
 }
@@ -395,7 +395,7 @@ static int drm_fb_helper_damage_blit(struct drm_fb_helper *fb_helper,
 				     struct drm_clip_rect *clip)
 {
 	struct drm_client_buffer *buffer = fb_helper->buffer;
-	struct dma_buf_map map, dst;
+	struct iosys_map map, dst;
 	int ret;
 
 	/*
@@ -2322,7 +2322,7 @@ static int drm_fb_helper_generic_probe(struct drm_fb_helper *fb_helper,
 	struct drm_framebuffer *fb;
 	struct fb_info *fbi;
 	u32 format;
-	struct dma_buf_map map;
+	struct iosys_map map;
 	int ret;
 
 	drm_dbg_kms(dev, "surface width(%d), height(%d) and bpp(%d)\n",

drivers/gpu/drm/drm_gem.c

@@ -36,7 +36,7 @@
 #include <linux/pagemap.h>
 #include <linux/shmem_fs.h>
 #include <linux/dma-buf.h>
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 #include <linux/mem_encrypt.h>
 #include <linux/pagevec.h>
 
@@ -1165,7 +1165,7 @@ void drm_gem_unpin(struct drm_gem_object *obj)
 		obj->funcs->unpin(obj);
 }
 
-int drm_gem_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+int drm_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map)
 {
 	int ret;
 
@@ -1175,23 +1175,23 @@ int drm_gem_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
 	ret = obj->funcs->vmap(obj, map);
 	if (ret)
 		return ret;
-	else if (dma_buf_map_is_null(map))
+	else if (iosys_map_is_null(map))
 		return -ENOMEM;
 
 	return 0;
 }
 EXPORT_SYMBOL(drm_gem_vmap);
 
-void drm_gem_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+void drm_gem_vunmap(struct drm_gem_object *obj, struct iosys_map *map)
 {
-	if (dma_buf_map_is_null(map))
+	if (iosys_map_is_null(map))
 		return;
 
 	if (obj->funcs->vunmap)
 		obj->funcs->vunmap(obj, map);
 
 	/* Always set the mapping to NULL. Callers may rely on this. */
-	dma_buf_map_clear(map);
+	iosys_map_clear(map);
 }
 EXPORT_SYMBOL(drm_gem_vunmap);
 

drivers/gpu/drm/drm_gem_cma_helper.c

@@ -209,7 +209,7 @@ drm_gem_cma_create_with_handle(struct drm_file *file_priv,
 void drm_gem_cma_free(struct drm_gem_cma_object *cma_obj)
 {
 	struct drm_gem_object *gem_obj = &cma_obj->base;
-	struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(cma_obj->vaddr);
+	struct iosys_map map = IOSYS_MAP_INIT_VADDR(cma_obj->vaddr);
 
 	if (gem_obj->import_attach) {
 		if (cma_obj->vaddr)
@@ -480,9 +480,10 @@ EXPORT_SYMBOL_GPL(drm_gem_cma_prime_import_sg_table);
  * Returns:
  * 0 on success, or a negative error code otherwise.
  */
-int drm_gem_cma_vmap(struct drm_gem_cma_object *cma_obj, struct dma_buf_map *map)
+int drm_gem_cma_vmap(struct drm_gem_cma_object *cma_obj,
+		     struct iosys_map *map)
 {
-	dma_buf_map_set_vaddr(map, cma_obj->vaddr);
+	iosys_map_set_vaddr(map, cma_obj->vaddr);
 
 	return 0;
 }
@@ -557,7 +558,7 @@ drm_gem_cma_prime_import_sg_table_vmap(struct drm_device *dev,
 {
 	struct drm_gem_cma_object *cma_obj;
 	struct drm_gem_object *obj;
-	struct dma_buf_map map;
+	struct iosys_map map;
 	int ret;
 
 	ret = dma_buf_vmap(attach->dmabuf, &map);

drivers/gpu/drm/drm_gem_framebuffer_helper.c

@@ -321,7 +321,7 @@ EXPORT_SYMBOL_GPL(drm_gem_fb_create_with_dirty);
  * @data: returns the data address for each BO, can be NULL
  *
  * This function maps all buffer objects of the given framebuffer into
- * kernel address space and stores them in struct dma_buf_map. If the
+ * kernel address space and stores them in struct iosys_map. If the
  * mapping operation fails for one of the BOs, the function unmaps the
  * already established mappings automatically.
  *
@@ -335,8 +335,8 @@ EXPORT_SYMBOL_GPL(drm_gem_fb_create_with_dirty);
  * 0 on success, or a negative errno code otherwise.
  */
 int drm_gem_fb_vmap(struct drm_framebuffer *fb,
-		    struct dma_buf_map map[static DRM_FORMAT_MAX_PLANES],
-		    struct dma_buf_map data[DRM_FORMAT_MAX_PLANES])
+		    struct iosys_map map[static DRM_FORMAT_MAX_PLANES],
+		    struct iosys_map data[DRM_FORMAT_MAX_PLANES])
 {
 	struct drm_gem_object *obj;
 	unsigned int i;
@@ -345,7 +345,7 @@ int drm_gem_fb_vmap(struct drm_framebuffer *fb,
 	for (i = 0; i < DRM_FORMAT_MAX_PLANES; ++i) {
 		obj = drm_gem_fb_get_obj(fb, i);
 		if (!obj) {
-			dma_buf_map_clear(&map[i]);
+			iosys_map_clear(&map[i]);
 			continue;
 		}
 		ret = drm_gem_vmap(obj, &map[i]);
@@ -356,9 +356,9 @@ int drm_gem_fb_vmap(struct drm_framebuffer *fb,
 	if (data) {
 		for (i = 0; i < DRM_FORMAT_MAX_PLANES; ++i) {
 			memcpy(&data[i], &map[i], sizeof(data[i]));
-			if (dma_buf_map_is_null(&data[i]))
+			if (iosys_map_is_null(&data[i]))
 				continue;
-			dma_buf_map_incr(&data[i], fb->offsets[i]);
+			iosys_map_incr(&data[i], fb->offsets[i]);
 		}
 	}
 
@@ -386,7 +386,7 @@ EXPORT_SYMBOL(drm_gem_fb_vmap);
  * See drm_gem_fb_vmap() for more information.
  */
 void drm_gem_fb_vunmap(struct drm_framebuffer *fb,
-		       struct dma_buf_map map[static DRM_FORMAT_MAX_PLANES])
+		       struct iosys_map map[static DRM_FORMAT_MAX_PLANES])
 {
 	unsigned int i = DRM_FORMAT_MAX_PLANES;
 	struct drm_gem_object *obj;
@@ -396,7 +396,7 @@ void drm_gem_fb_vunmap(struct drm_framebuffer *fb,
 		obj = drm_gem_fb_get_obj(fb, i);
 		if (!obj)
 			continue;
-		if (dma_buf_map_is_null(&map[i]))
+		if (iosys_map_is_null(&map[i]))
 			continue;
 		drm_gem_vunmap(obj, &map[i]);
 	}

drivers/gpu/drm/drm_gem_shmem_helper.c

@@ -286,13 +286,14 @@ 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 +320,7 @@ 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 +354,8 @@ static int drm_gem_shmem_vmap_locked(struct drm_gem_shmem_object *shmem, struct
  * 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 +370,7 @@ 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 +402,8 @@ 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);

drivers/gpu/drm/drm_gem_ttm_helper.c

@@ -61,7 +61,7 @@ EXPORT_SYMBOL(drm_gem_ttm_print_info);
  * 0 on success, or a negative errno code otherwise.
  */
 int drm_gem_ttm_vmap(struct drm_gem_object *gem,
-		     struct dma_buf_map *map)
+		     struct iosys_map *map)
 {
 	struct ttm_buffer_object *bo = drm_gem_ttm_of_gem(gem);
 
@@ -78,7 +78,7 @@ EXPORT_SYMBOL(drm_gem_ttm_vmap);
  * &drm_gem_object_funcs.vmap callback.
  */
 void drm_gem_ttm_vunmap(struct drm_gem_object *gem,
-			struct dma_buf_map *map)
+			struct iosys_map *map)
 {
 	struct ttm_buffer_object *bo = drm_gem_ttm_of_gem(gem);
 

drivers/gpu/drm/drm_gem_vram_helper.c

 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 #include <linux/module.h>
 
 #include <drm/drm_debugfs.h>
@@ -116,7 +116,7 @@ static void drm_gem_vram_cleanup(struct drm_gem_vram_object *gbo)
 	 */
 
 	WARN_ON(gbo->vmap_use_count);
-	WARN_ON(dma_buf_map_is_set(&gbo->map));
+	WARN_ON(iosys_map_is_set(&gbo->map));
 
 	drm_gem_object_release(&gbo->bo.base);
 }
@@ -365,7 +365,7 @@ int drm_gem_vram_unpin(struct drm_gem_vram_object *gbo)
 EXPORT_SYMBOL(drm_gem_vram_unpin);
 
 static int drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo,
-				    struct dma_buf_map *map)
+				    struct iosys_map *map)
 {
 	int ret;
 
@@ -377,7 +377,7 @@ static int drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo,
 	 * page mapping might still be around. Only vmap if the there's
 	 * no mapping present.
 	 */
-	if (dma_buf_map_is_null(&gbo->map)) {
+	if (iosys_map_is_null(&gbo->map)) {
 		ret = ttm_bo_vmap(&gbo->bo, &gbo->map);
 		if (ret)
 			return ret;
@@ -391,14 +391,14 @@ static int drm_gem_vram_kmap_locked(struct drm_gem_vram_object *gbo,
 }
 
 static void drm_gem_vram_kunmap_locked(struct drm_gem_vram_object *gbo,
-				       struct dma_buf_map *map)
+				       struct iosys_map *map)
 {
 	struct drm_device *dev = gbo->bo.base.dev;
 
 	if (drm_WARN_ON_ONCE(dev, !gbo->vmap_use_count))
 		return;
 
-	if (drm_WARN_ON_ONCE(dev, !dma_buf_map_is_equal(&gbo->map, map)))
+	if (drm_WARN_ON_ONCE(dev, !iosys_map_is_equal(&gbo->map, map)))
 		return; /* BUG: map not mapped from this BO */
 
 	if (--gbo->vmap_use_count > 0)
@@ -428,7 +428,7 @@ static void drm_gem_vram_kunmap_locked(struct drm_gem_vram_object *gbo,
  * Returns:
  * 0 on success, or a negative error code otherwise.
  */
-int drm_gem_vram_vmap(struct drm_gem_vram_object *gbo, struct dma_buf_map *map)
+int drm_gem_vram_vmap(struct drm_gem_vram_object *gbo, struct iosys_map *map)
 {
 	int ret;
 
@@ -463,7 +463,8 @@ EXPORT_SYMBOL(drm_gem_vram_vmap);
  * A call to drm_gem_vram_vunmap() unmaps and unpins a GEM VRAM buffer. See
  * the documentation for drm_gem_vram_vmap() for more information.
  */
-void drm_gem_vram_vunmap(struct drm_gem_vram_object *gbo, struct dma_buf_map *map)
+void drm_gem_vram_vunmap(struct drm_gem_vram_object *gbo,
+			 struct iosys_map *map)
 {
 	int ret;
 
@@ -567,7 +568,7 @@ static void drm_gem_vram_bo_driver_move_notify(struct drm_gem_vram_object *gbo)
 		return;
 
 	ttm_bo_vunmap(bo, &gbo->map);
-	dma_buf_map_clear(&gbo->map); /* explicitly clear mapping for next vmap call */
+	iosys_map_clear(&gbo->map); /* explicitly clear mapping for next vmap call */
 }
 
 static int drm_gem_vram_bo_driver_move(struct drm_gem_vram_object *gbo,
@@ -802,7 +803,8 @@ static void drm_gem_vram_object_unpin(struct drm_gem_object *gem)
  * Returns:
  * 0 on success, or a negative error code otherwise.
  */
-static int drm_gem_vram_object_vmap(struct drm_gem_object *gem, struct dma_buf_map *map)
+static int drm_gem_vram_object_vmap(struct drm_gem_object *gem,
+				    struct iosys_map *map)
 {
 	struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(gem);
 
@@ -815,7 +817,8 @@ static int drm_gem_vram_object_vmap(struct drm_gem_object *gem, struct dma_buf_m
  * @gem: The GEM object to unmap
  * @map: Kernel virtual address where the VRAM GEM object was mapped
  */
-static void drm_gem_vram_object_vunmap(struct drm_gem_object *gem, struct dma_buf_map *map)
+static void drm_gem_vram_object_vunmap(struct drm_gem_object *gem,
+				       struct iosys_map *map)
 {
 	struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(gem);
 

drivers/gpu/drm/drm_internal.h

@@ -33,7 +33,7 @@
 
 struct dentry;
 struct dma_buf;
-struct dma_buf_map;
+struct iosys_map;
 struct drm_connector;
 struct drm_crtc;
 struct drm_framebuffer;
@@ -174,8 +174,8 @@ void drm_gem_print_info(struct drm_printer *p, unsigned int indent,
 
 int drm_gem_pin(struct drm_gem_object *obj);
 void drm_gem_unpin(struct drm_gem_object *obj);
-int drm_gem_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
-void drm_gem_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map);
+int drm_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map);
+void drm_gem_vunmap(struct drm_gem_object *obj, struct iosys_map *map);
 
 int drm_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
 			 u32 handle);

drivers/gpu/drm/drm_mipi_dbi.c

@@ -201,8 +201,8 @@ int mipi_dbi_buf_copy(void *dst, struct drm_framebuffer *fb,
 		      struct drm_rect *clip, bool swap)
 {
 	struct drm_gem_object *gem = drm_gem_fb_get_obj(fb, 0);
-	struct dma_buf_map map[DRM_FORMAT_MAX_PLANES];
-	struct dma_buf_map data[DRM_FORMAT_MAX_PLANES];
+	struct iosys_map map[DRM_FORMAT_MAX_PLANES];
+	struct iosys_map data[DRM_FORMAT_MAX_PLANES];
 	void *src;
 	int ret;
 
@@ -258,8 +258,8 @@ static void mipi_dbi_set_window_address(struct mipi_dbi_dev *dbidev,
 
 static void mipi_dbi_fb_dirty(struct drm_framebuffer *fb, struct drm_rect *rect)
 {
-	struct dma_buf_map map[DRM_FORMAT_MAX_PLANES];
-	struct dma_buf_map data[DRM_FORMAT_MAX_PLANES];
+	struct iosys_map map[DRM_FORMAT_MAX_PLANES];
+	struct iosys_map data[DRM_FORMAT_MAX_PLANES];
 	struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(fb->dev);
 	unsigned int height = rect->y2 - rect->y1;
 	unsigned int width = rect->x2 - rect->x1;

drivers/gpu/drm/drm_prime.c

@@ -674,7 +674,7 @@ EXPORT_SYMBOL(drm_gem_unmap_dma_buf);
  *
  * Returns 0 on success or a negative errno code otherwise.
  */
-int drm_gem_dmabuf_vmap(struct dma_buf *dma_buf, struct dma_buf_map *map)
+int drm_gem_dmabuf_vmap(struct dma_buf *dma_buf, struct iosys_map *map)
 {
 	struct drm_gem_object *obj = dma_buf->priv;
 
@@ -690,7 +690,7 @@ EXPORT_SYMBOL(drm_gem_dmabuf_vmap);
  * Releases a kernel virtual mapping. This can be used as the
  * &dma_buf_ops.vunmap callback. Calls into &drm_gem_object_funcs.vunmap for device specific handling.
  */
-void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, struct dma_buf_map *map)
+void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, struct iosys_map *map)
 {
 	struct drm_gem_object *obj = dma_buf->priv;
 

drivers/gpu/drm/etnaviv/etnaviv_drv.h

@@ -49,7 +49,7 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
 
 int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset);
 struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj);
-int etnaviv_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
+int etnaviv_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map);
 struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
 	struct dma_buf_attachment *attach, struct sg_table *sg);
 int etnaviv_gem_prime_pin(struct drm_gem_object *obj);

drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c

@@ -25,14 +25,14 @@ struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj)
 	return drm_prime_pages_to_sg(obj->dev, etnaviv_obj->pages, npages);
 }
 
-int etnaviv_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+int etnaviv_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map)
 {
 	void *vaddr;
 
 	vaddr = etnaviv_gem_vmap(obj);
 	if (!vaddr)
 		return -ENOMEM;
-	dma_buf_map_set_vaddr(map, vaddr);
+	iosys_map_set_vaddr(map, vaddr);
 
 	return 0;
 }
@@ -62,7 +62,7 @@ void etnaviv_gem_prime_unpin(struct drm_gem_object *obj)
 
 static void etnaviv_gem_prime_release(struct etnaviv_gem_object *etnaviv_obj)
 {
-	struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(etnaviv_obj->vaddr);
+	struct iosys_map map = IOSYS_MAP_INIT_VADDR(etnaviv_obj->vaddr);
 
 	if (etnaviv_obj->vaddr)
 		dma_buf_vunmap(etnaviv_obj->base.import_attach->dmabuf, &map);
@@ -77,7 +77,7 @@ static void etnaviv_gem_prime_release(struct etnaviv_gem_object *etnaviv_obj)
 
 static void *etnaviv_gem_prime_vmap_impl(struct etnaviv_gem_object *etnaviv_obj)
 {
-	struct dma_buf_map map;
+	struct iosys_map map;
 	int ret;
 
 	lockdep_assert_held(&etnaviv_obj->lock);

drivers/gpu/drm/gud/gud_pipe.c

@@ -152,8 +152,8 @@ static int gud_prep_flush(struct gud_device *gdrm, struct drm_framebuffer *fb,
 {
 	struct dma_buf_attachment *import_attach = fb->obj[0]->import_attach;
 	u8 compression = gdrm->compression;
-	struct dma_buf_map map[DRM_FORMAT_MAX_PLANES];
-	struct dma_buf_map map_data[DRM_FORMAT_MAX_PLANES];
+	struct iosys_map map[DRM_FORMAT_MAX_PLANES];
+	struct iosys_map map_data[DRM_FORMAT_MAX_PLANES];
 	void *vaddr, *buf;
 	size_t pitch, len;
 	int ret = 0;

drivers/gpu/drm/hyperv/hyperv_drm_modeset.c

@@ -19,7 +19,7 @@
 #include "hyperv_drm.h"
 
 static int hyperv_blit_to_vram_rect(struct drm_framebuffer *fb,
-				    const struct dma_buf_map *map,
+				    const struct iosys_map *map,
 				    struct drm_rect *rect)
 {
 	struct hyperv_drm_device *hv = to_hv(fb->dev);
@@ -38,7 +38,8 @@ static int hyperv_blit_to_vram_rect(struct drm_framebuffer *fb,
 	return 0;
 }
 
-static int hyperv_blit_to_vram_fullscreen(struct drm_framebuffer *fb, const struct dma_buf_map *map)
+static int hyperv_blit_to_vram_fullscreen(struct drm_framebuffer *fb,
+					  const struct iosys_map *map)
 {
 	struct drm_rect fullscreen = {
 		.x1 = 0,

drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c

@@ -74,7 +74,8 @@ static void i915_gem_unmap_dma_buf(struct dma_buf_attachment *attachment,
 	kfree(sg);
 }
 
-static int i915_gem_dmabuf_vmap(struct dma_buf *dma_buf, struct dma_buf_map *map)
+static int i915_gem_dmabuf_vmap(struct dma_buf *dma_buf,
+				struct iosys_map *map)
 {
 	struct drm_i915_gem_object *obj = dma_buf_to_obj(dma_buf);
 	void *vaddr;
@@ -83,12 +84,13 @@ static int i915_gem_dmabuf_vmap(struct dma_buf *dma_buf, struct dma_buf_map *map
 	if (IS_ERR(vaddr))
 		return PTR_ERR(vaddr);
 
-	dma_buf_map_set_vaddr(map, vaddr);
+	iosys_map_set_vaddr(map, vaddr);
 
 	return 0;
 }
 
-static void i915_gem_dmabuf_vunmap(struct dma_buf *dma_buf, struct dma_buf_map *map)
+static void i915_gem_dmabuf_vunmap(struct dma_buf *dma_buf,
+				   struct iosys_map *map)
 {
 	struct drm_i915_gem_object *obj = dma_buf_to_obj(dma_buf);
 

drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c

@@ -266,7 +266,7 @@ static int igt_dmabuf_import(void *arg)
 	struct drm_i915_gem_object *obj;
 	struct dma_buf *dmabuf;
 	void *obj_map, *dma_map;
-	struct dma_buf_map map;
+	struct iosys_map map;
 	u32 pattern[] = { 0, 0xaa, 0xcc, 0x55, 0xff };
 	int err, i;
 
@@ -349,7 +349,7 @@ static int igt_dmabuf_import_ownership(void *arg)
 	struct drm_i915_private *i915 = arg;
 	struct drm_i915_gem_object *obj;
 	struct dma_buf *dmabuf;
-	struct dma_buf_map map;
+	struct iosys_map map;
 	void *ptr;
 	int err;
 
@@ -400,7 +400,7 @@ static int igt_dmabuf_export_vmap(void *arg)
 	struct drm_i915_private *i915 = arg;
 	struct drm_i915_gem_object *obj;
 	struct dma_buf *dmabuf;
-	struct dma_buf_map map;
+	struct iosys_map map;
 	void *ptr;
 	int err;
 

drivers/gpu/drm/i915/gem/selftests/mock_dmabuf.c

@@ -61,7 +61,7 @@ static void mock_dmabuf_release(struct dma_buf *dma_buf)
 	kfree(mock);
 }
 
-static int mock_dmabuf_vmap(struct dma_buf *dma_buf, struct dma_buf_map *map)
+static int mock_dmabuf_vmap(struct dma_buf *dma_buf, struct iosys_map *map)
 {
 	struct mock_dmabuf *mock = to_mock(dma_buf);
 	void *vaddr;
@@ -69,12 +69,12 @@ static int mock_dmabuf_vmap(struct dma_buf *dma_buf, struct dma_buf_map *map)
 	vaddr = vm_map_ram(mock->pages, mock->npages, 0);
 	if (!vaddr)
 		return -ENOMEM;
-	dma_buf_map_set_vaddr(map, vaddr);
+	iosys_map_set_vaddr(map, vaddr);
 
 	return 0;
 }
 
-static void mock_dmabuf_vunmap(struct dma_buf *dma_buf, struct dma_buf_map *map)
+static void mock_dmabuf_vunmap(struct dma_buf *dma_buf, struct iosys_map *map)
 {
 	struct mock_dmabuf *mock = to_mock(dma_buf);
 

drivers/gpu/drm/lima/lima_gem.c

@@ -2,6 +2,7 @@
 /* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
 
 #include <linux/mm.h>
+#include <linux/iosys-map.h>
 #include <linux/sync_file.h>
 #include <linux/pagemap.h>
 #include <linux/shmem_fs.h>
@@ -182,7 +183,7 @@ static int lima_gem_pin(struct drm_gem_object *obj)
 	return drm_gem_shmem_pin(&bo->base);
 }
 
-static int lima_gem_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+static int lima_gem_vmap(struct drm_gem_object *obj, struct iosys_map *map)
 {
 	struct lima_bo *bo = to_lima_bo(obj);
 

drivers/gpu/drm/lima/lima_sched.c

 // SPDX-License-Identifier: GPL-2.0 OR MIT
 /* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
 
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 #include <linux/kthread.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
@@ -284,7 +284,7 @@ static void lima_sched_build_error_task_list(struct lima_sched_task *task)
 	struct lima_dump_chunk_buffer *buffer_chunk;
 	u32 size, task_size, mem_size;
 	int i;
-	struct dma_buf_map map;
+	struct iosys_map map;
 	int ret;
 
 	mutex_lock(&dev->error_task_list_lock);

drivers/gpu/drm/mediatek/mtk_drm_gem.c

@@ -220,7 +220,7 @@ struct drm_gem_object *mtk_gem_prime_import_sg_table(struct drm_device *dev,
 	return &mtk_gem->base;
 }
 
-int mtk_drm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+int mtk_drm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map)
 {
 	struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj);
 	struct sg_table *sgt = NULL;
@@ -247,12 +247,13 @@ int mtk_drm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
 
 out:
 	kfree(sgt);
-	dma_buf_map_set_vaddr(map, mtk_gem->kvaddr);
+	iosys_map_set_vaddr(map, mtk_gem->kvaddr);
 
 	return 0;
 }
 
-void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj,
+			      struct iosys_map *map)
 {
 	struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj);
 	void *vaddr = map->vaddr;

drivers/gpu/drm/mediatek/mtk_drm_gem.h

@@ -42,7 +42,8 @@ int mtk_drm_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 struct sg_table *mtk_gem_prime_get_sg_table(struct drm_gem_object *obj);
 struct drm_gem_object *mtk_gem_prime_import_sg_table(struct drm_device *dev,
 			struct dma_buf_attachment *attach, struct sg_table *sg);
-int mtk_drm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
-void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map);
+int mtk_drm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map);
+void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj,
+			      struct iosys_map *map);
 
 #endif

drivers/gpu/drm/mgag200/mgag200_mode.c

@@ -9,7 +9,7 @@
  */
 
 #include <linux/delay.h>
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_atomic_state_helper.h>
@@ -845,7 +845,7 @@ mgag200_simple_display_pipe_mode_valid(struct drm_simple_display_pipe *pipe,
 
 static void
 mgag200_handle_damage(struct mga_device *mdev, struct drm_framebuffer *fb,
-		      struct drm_rect *clip, const struct dma_buf_map *map)
+		      struct drm_rect *clip, const struct iosys_map *map)
 {
 	void __iomem *dst = mdev->vram;
 	void *vmap = map->vaddr; /* TODO: Use mapping abstraction properly */

drivers/gpu/drm/msm/msm_drv.h

@@ -309,8 +309,8 @@ void msm_gem_shrinker_init(struct drm_device *dev);
 void msm_gem_shrinker_cleanup(struct drm_device *dev);
 
 struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj);
-int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
-void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map);
+int msm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map);
+void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct iosys_map *map);
 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
 		struct dma_buf_attachment *attach, struct sg_table *sg);
 int msm_gem_prime_pin(struct drm_gem_object *obj);

drivers/gpu/drm/msm/msm_gem_prime.c

@@ -22,19 +22,19 @@ struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj)
 	return drm_prime_pages_to_sg(obj->dev, msm_obj->pages, npages);
 }
 
-int msm_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+int msm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map)
 {
 	void *vaddr;
 
 	vaddr = msm_gem_get_vaddr(obj);
 	if (IS_ERR(vaddr))
 		return PTR_ERR(vaddr);
-	dma_buf_map_set_vaddr(map, vaddr);
+	iosys_map_set_vaddr(map, vaddr);
 
 	return 0;
 }
 
-void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct iosys_map *map)
 {
 	msm_gem_put_vaddr(obj);
 }

drivers/gpu/drm/panfrost/panfrost_perfcnt.c

 // SPDX-License-Identifier: GPL-2.0
 /* Copyright 2019 Collabora Ltd */
 
-#include <drm/drm_file.h>
-#include <drm/drm_gem_shmem_helper.h>
-#include <drm/panfrost_drm.h>
 #include <linux/completion.h>
-#include <linux/dma-buf-map.h>
 #include <linux/iopoll.h>
+#include <linux/iosys-map.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
 #include <linux/uaccess.h>
 
+#include <drm/drm_file.h>
+#include <drm/drm_gem_shmem_helper.h>
+#include <drm/panfrost_drm.h>
+
 #include "panfrost_device.h"
 #include "panfrost_features.h"
 #include "panfrost_gem.h"
@@ -73,7 +74,7 @@ static int panfrost_perfcnt_enable_locked(struct panfrost_device *pfdev,
 {
 	struct panfrost_file_priv *user = file_priv->driver_priv;
 	struct panfrost_perfcnt *perfcnt = pfdev->perfcnt;
-	struct dma_buf_map map;
+	struct iosys_map map;
 	struct drm_gem_shmem_object *bo;
 	u32 cfg, as;
 	int ret;
@@ -181,7 +182,7 @@ static int panfrost_perfcnt_disable_locked(struct panfrost_device *pfdev,
 {
 	struct panfrost_file_priv *user = file_priv->driver_priv;
 	struct panfrost_perfcnt *perfcnt = pfdev->perfcnt;
-	struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(perfcnt->buf);
+	struct iosys_map map = IOSYS_MAP_INIT_VADDR(perfcnt->buf);
 
 	if (user != perfcnt->user)
 		return -EINVAL;

drivers/gpu/drm/qxl/qxl_display.c

@@ -25,7 +25,7 @@
 
 #include <linux/crc32.h>
 #include <linux/delay.h>
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 
 #include <drm/drm_drv.h>
 #include <drm/drm_atomic.h>
@@ -566,8 +566,8 @@ static struct qxl_bo *qxl_create_cursor(struct qxl_device *qdev,
 {
 	static const u32 size = 64 * 64 * 4;
 	struct qxl_bo *cursor_bo;
-	struct dma_buf_map cursor_map;
-	struct dma_buf_map user_map;
+	struct iosys_map cursor_map;
+	struct iosys_map user_map;
 	struct qxl_cursor cursor;
 	int ret;
 
@@ -1183,7 +1183,7 @@ int qxl_create_monitors_object(struct qxl_device *qdev)
 {
 	int ret;
 	struct drm_gem_object *gobj;
-	struct dma_buf_map map;
+	struct iosys_map map;
 	int monitors_config_size = sizeof(struct qxl_monitors_config) +
 		qxl_num_crtc * sizeof(struct qxl_head);
 

drivers/gpu/drm/qxl/qxl_draw.c

@@ -20,7 +20,7 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 
 #include <drm/drm_fourcc.h>
 
@@ -44,7 +44,7 @@ static struct qxl_rect *drawable_set_clipping(struct qxl_device *qdev,
 					      unsigned int num_clips,
 					      struct qxl_bo *clips_bo)
 {
-	struct dma_buf_map map;
+	struct iosys_map map;
 	struct qxl_clip_rects *dev_clips;
 	int ret;
 
@@ -146,7 +146,7 @@ void qxl_draw_dirty_fb(struct qxl_device *qdev,
 	int stride = fb->pitches[0];
 	/* depth is not actually interesting, we don't mask with it */
 	int depth = fb->format->cpp[0] * 8;
-	struct dma_buf_map surface_map;
+	struct iosys_map surface_map;
 	uint8_t *surface_base;
 	struct qxl_release *release;
 	struct qxl_bo *clips_bo;

drivers/gpu/drm/qxl/qxl_drv.h

@@ -30,7 +30,7 @@
  * Definitions taken from spice-protocol, plus kernel driver specific bits.
  */
 
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 #include <linux/dma-fence.h>
 #include <linux/firmware.h>
 #include <linux/platform_device.h>
@@ -50,7 +50,7 @@
 
 #include "qxl_dev.h"
 
-struct dma_buf_map;
+struct iosys_map;
 
 #define DRIVER_AUTHOR		"Dave Airlie"
 
@@ -81,7 +81,7 @@ struct qxl_bo {
 	/* Protected by tbo.reserved */
 	struct ttm_place		placements[3];
 	struct ttm_placement		placement;
-	struct dma_buf_map		map;
+	struct iosys_map		map;
 	void				*kptr;
 	unsigned int                    map_count;
 	int                             type;
@@ -431,9 +431,9 @@ struct sg_table *qxl_gem_prime_get_sg_table(struct drm_gem_object *obj);
 struct drm_gem_object *qxl_gem_prime_import_sg_table(
 	struct drm_device *dev, struct dma_buf_attachment *attach,
 	struct sg_table *sgt);
-int qxl_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
+int qxl_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map);
 void qxl_gem_prime_vunmap(struct drm_gem_object *obj,
-			  struct dma_buf_map *map);
+			  struct iosys_map *map);
 
 /* qxl_irq.c */
 int qxl_irq_init(struct qxl_device *qdev);

drivers/gpu/drm/qxl/qxl_object.c

@@ -23,7 +23,7 @@
  *          Alon Levy
  */
 
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 #include <linux/io-mapping.h>
 
 #include "qxl_drv.h"
@@ -158,7 +158,7 @@ int qxl_bo_create(struct qxl_device *qdev, unsigned long size,
 	return 0;
 }
 
-int qxl_bo_vmap_locked(struct qxl_bo *bo, struct dma_buf_map *map)
+int qxl_bo_vmap_locked(struct qxl_bo *bo, struct iosys_map *map)
 {
 	int r;
 
@@ -184,7 +184,7 @@ int qxl_bo_vmap_locked(struct qxl_bo *bo, struct dma_buf_map *map)
 	return 0;
 }
 
-int qxl_bo_vmap(struct qxl_bo *bo, struct dma_buf_map *map)
+int qxl_bo_vmap(struct qxl_bo *bo, struct iosys_map *map)
 {
 	int r;
 
@@ -210,7 +210,7 @@ void *qxl_bo_kmap_atomic_page(struct qxl_device *qdev,
 	void *rptr;
 	int ret;
 	struct io_mapping *map;
-	struct dma_buf_map bo_map;
+	struct iosys_map bo_map;
 
 	if (bo->tbo.resource->mem_type == TTM_PL_VRAM)
 		map = qdev->vram_mapping;

drivers/gpu/drm/qxl/qxl_object.h

@@ -59,8 +59,8 @@ extern int qxl_bo_create(struct qxl_device *qdev,
 			 u32 priority,
 			 struct qxl_surface *surf,
 			 struct qxl_bo **bo_ptr);
-int qxl_bo_vmap(struct qxl_bo *bo, struct dma_buf_map *map);
-int qxl_bo_vmap_locked(struct qxl_bo *bo, struct dma_buf_map *map);
+int qxl_bo_vmap(struct qxl_bo *bo, struct iosys_map *map);
+int qxl_bo_vmap_locked(struct qxl_bo *bo, struct iosys_map *map);
 int qxl_bo_vunmap(struct qxl_bo *bo);
 void qxl_bo_vunmap_locked(struct qxl_bo *bo);
 void *qxl_bo_kmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, int page_offset);

drivers/gpu/drm/qxl/qxl_prime.c

@@ -54,7 +54,7 @@ struct drm_gem_object *qxl_gem_prime_import_sg_table(
 	return ERR_PTR(-ENOSYS);
 }
 
-int qxl_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+int qxl_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map)
 {
 	struct qxl_bo *bo = gem_to_qxl_bo(obj);
 	int ret;
@@ -67,7 +67,7 @@ int qxl_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
 }
 
 void qxl_gem_prime_vunmap(struct drm_gem_object *obj,
-			  struct dma_buf_map *map)
+			  struct iosys_map *map)
 {
 	struct qxl_bo *bo = gem_to_qxl_bo(obj);
 

drivers/gpu/drm/radeon/radeon_gem.c

@@ -26,6 +26,7 @@
  *          Jerome Glisse
  */
 
+#include <linux/iosys-map.h>
 #include <linux/pci.h>
 
 #include <drm/drm_device.h>

drivers/gpu/drm/rockchip/rockchip_drm_gem.c

@@ -510,7 +510,7 @@ rockchip_gem_prime_import_sg_table(struct drm_device *drm,
 	return ERR_PTR(ret);
 }
 
-int rockchip_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+int rockchip_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map)
 {
 	struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj);
 
@@ -519,18 +519,19 @@ int rockchip_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
 				  pgprot_writecombine(PAGE_KERNEL));
 		if (!vaddr)
 			return -ENOMEM;
-		dma_buf_map_set_vaddr(map, vaddr);
+		iosys_map_set_vaddr(map, vaddr);
 		return 0;
 	}
 
 	if (rk_obj->dma_attrs & DMA_ATTR_NO_KERNEL_MAPPING)
 		return -ENOMEM;
-	dma_buf_map_set_vaddr(map, rk_obj->kvaddr);
+	iosys_map_set_vaddr(map, rk_obj->kvaddr);
 
 	return 0;
 }
 
-void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+void rockchip_gem_prime_vunmap(struct drm_gem_object *obj,
+			       struct iosys_map *map)
 {
 	struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj);
 

drivers/gpu/drm/rockchip/rockchip_drm_gem.h

@@ -31,8 +31,9 @@ struct drm_gem_object *
 rockchip_gem_prime_import_sg_table(struct drm_device *dev,
 				   struct dma_buf_attachment *attach,
 				   struct sg_table *sg);
-int rockchip_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
-void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map);
+int rockchip_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map);
+void rockchip_gem_prime_vunmap(struct drm_gem_object *obj,
+			       struct iosys_map *map);
 
 struct rockchip_gem_object *
 	rockchip_gem_create_object(struct drm_device *drm, unsigned int size,

drivers/gpu/drm/tegra/gem.c

@@ -174,7 +174,7 @@ static void tegra_bo_unpin(struct host1x_bo_mapping *map)
 static void *tegra_bo_mmap(struct host1x_bo *bo)
 {
 	struct tegra_bo *obj = host1x_to_tegra_bo(bo);
-	struct dma_buf_map map;
+	struct iosys_map map;
 	int ret;
 
 	if (obj->vaddr) {
@@ -191,7 +191,7 @@ static void *tegra_bo_mmap(struct host1x_bo *bo)
 static void tegra_bo_munmap(struct host1x_bo *bo, void *addr)
 {
 	struct tegra_bo *obj = host1x_to_tegra_bo(bo);
-	struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(addr);
+	struct iosys_map map = IOSYS_MAP_INIT_VADDR(addr);
 
 	if (obj->vaddr)
 		return;
@@ -699,17 +699,17 @@ static int tegra_gem_prime_mmap(struct dma_buf *buf, struct vm_area_struct *vma)
 	return __tegra_gem_mmap(gem, vma);
 }
 
-static int tegra_gem_prime_vmap(struct dma_buf *buf, struct dma_buf_map *map)
+static int tegra_gem_prime_vmap(struct dma_buf *buf, struct iosys_map *map)
 {
 	struct drm_gem_object *gem = buf->priv;
 	struct tegra_bo *bo = to_tegra_bo(gem);
 
-	dma_buf_map_set_vaddr(map, bo->vaddr);
+	iosys_map_set_vaddr(map, bo->vaddr);
 
 	return 0;
 }
 
-static void tegra_gem_prime_vunmap(struct dma_buf *buf, struct dma_buf_map *map)
+static void tegra_gem_prime_vunmap(struct dma_buf *buf, struct iosys_map *map)
 {
 }
 

drivers/gpu/drm/tiny/cirrus.c

@@ -16,7 +16,7 @@
  * Copyright 1999-2001 Jeff Garzik <jgarzik@pobox.com>
  */
 
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 #include <linux/module.h>
 #include <linux/pci.h>
 
@@ -312,7 +312,8 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
 	return 0;
 }
 
-static int cirrus_fb_blit_rect(struct drm_framebuffer *fb, const struct dma_buf_map *map,
+static int cirrus_fb_blit_rect(struct drm_framebuffer *fb,
+			       const struct iosys_map *map,
 			       struct drm_rect *rect)
 {
 	struct cirrus_device *cirrus = to_cirrus(fb->dev);
@@ -344,7 +345,8 @@ static int cirrus_fb_blit_rect(struct drm_framebuffer *fb, const struct dma_buf_
 	return 0;
 }
 
-static int cirrus_fb_blit_fullscreen(struct drm_framebuffer *fb, const struct dma_buf_map *map)
+static int cirrus_fb_blit_fullscreen(struct drm_framebuffer *fb,
+				     const struct iosys_map *map)
 {
 	struct drm_rect fullscreen = {
 		.x1 = 0,

drivers/gpu/drm/tiny/gm12u320.c

@@ -95,7 +95,7 @@ struct gm12u320_device {
 		struct drm_rect          rect;
 		int frame;
 		int draw_status_timeout;
-		struct dma_buf_map src_map;
+		struct iosys_map src_map;
 	} fb_update;
 };
 
@@ -395,7 +395,8 @@ static void gm12u320_fb_update_work(struct work_struct *work)
 		GM12U320_ERR("Frame update error: %d\n", ret);
 }
 
-static void gm12u320_fb_mark_dirty(struct drm_framebuffer *fb, const struct dma_buf_map *map,
+static void gm12u320_fb_mark_dirty(struct drm_framebuffer *fb,
+				   const struct iosys_map *map,
 				   struct drm_rect *dirty)
 {
 	struct gm12u320_device *gm12u320 = to_gm12u320(fb->dev);
@@ -438,7 +439,7 @@ static void gm12u320_stop_fb_update(struct gm12u320_device *gm12u320)
 	mutex_lock(&gm12u320->fb_update.lock);
 	old_fb = gm12u320->fb_update.fb;
 	gm12u320->fb_update.fb = NULL;
-	dma_buf_map_clear(&gm12u320->fb_update.src_map);
+	iosys_map_clear(&gm12u320->fb_update.src_map);
 	mutex_unlock(&gm12u320->fb_update.lock);
 
 	drm_framebuffer_put(old_fb);

drivers/gpu/drm/ttm/ttm_bo_util.c

@@ -33,7 +33,7 @@
 #include <drm/ttm/ttm_placement.h>
 #include <drm/drm_cache.h>
 #include <drm/drm_vma_manager.h>
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 #include <linux/io.h>
 #include <linux/highmem.h>
 #include <linux/wait.h>
@@ -93,7 +93,7 @@ void ttm_move_memcpy(bool clear,
 {
 	const struct ttm_kmap_iter_ops *dst_ops = dst_iter->ops;
 	const struct ttm_kmap_iter_ops *src_ops = src_iter->ops;
-	struct dma_buf_map src_map, dst_map;
+	struct iosys_map src_map, dst_map;
 	pgoff_t i;
 
 	/* Single TTM move. NOP */
@@ -385,7 +385,7 @@ void ttm_bo_kunmap(struct ttm_bo_kmap_obj *map)
 }
 EXPORT_SYMBOL(ttm_bo_kunmap);
 
-int ttm_bo_vmap(struct ttm_buffer_object *bo, struct dma_buf_map *map)
+int ttm_bo_vmap(struct ttm_buffer_object *bo, struct iosys_map *map)
 {
 	struct ttm_resource *mem = bo->resource;
 	int ret;
@@ -413,7 +413,7 @@ int ttm_bo_vmap(struct ttm_buffer_object *bo, struct dma_buf_map *map)
 		if (!vaddr_iomem)
 			return -ENOMEM;
 
-		dma_buf_map_set_vaddr_iomem(map, vaddr_iomem);
+		iosys_map_set_vaddr_iomem(map, vaddr_iomem);
 
 	} else {
 		struct ttm_operation_ctx ctx = {
@@ -437,25 +437,25 @@ int ttm_bo_vmap(struct ttm_buffer_object *bo, struct dma_buf_map *map)
 		if (!vaddr)
 			return -ENOMEM;
 
-		dma_buf_map_set_vaddr(map, vaddr);
+		iosys_map_set_vaddr(map, vaddr);
 	}
 
 	return 0;
 }
 EXPORT_SYMBOL(ttm_bo_vmap);
 
-void ttm_bo_vunmap(struct ttm_buffer_object *bo, struct dma_buf_map *map)
+void ttm_bo_vunmap(struct ttm_buffer_object *bo, struct iosys_map *map)
 {
 	struct ttm_resource *mem = bo->resource;
 
-	if (dma_buf_map_is_null(map))
+	if (iosys_map_is_null(map))
 		return;
 
 	if (!map->is_iomem)
 		vunmap(map->vaddr);
 	else if (!mem->bus.addr)
 		iounmap(map->vaddr_iomem);
-	dma_buf_map_clear(map);
+	iosys_map_clear(map);
 
 	ttm_mem_io_free(bo->bdev, bo->resource);
 }

drivers/gpu/drm/ttm/ttm_resource.c

@@ -22,7 +22,7 @@
  * Authors: Christian König
  */
 
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 #include <linux/io-mapping.h>
 #include <linux/scatterlist.h>
 
@@ -209,7 +209,7 @@ void ttm_resource_manager_debug(struct ttm_resource_manager *man,
 EXPORT_SYMBOL(ttm_resource_manager_debug);
 
 static void ttm_kmap_iter_iomap_map_local(struct ttm_kmap_iter *iter,
-					  struct dma_buf_map *dmap,
+					  struct iosys_map *dmap,
 					  pgoff_t i)
 {
 	struct ttm_kmap_iter_iomap *iter_io =
@@ -236,11 +236,11 @@ static void ttm_kmap_iter_iomap_map_local(struct ttm_kmap_iter *iter,
 	addr = io_mapping_map_local_wc(iter_io->iomap, iter_io->cache.offs +
 				       (((resource_size_t)i - iter_io->cache.i)
 					<< PAGE_SHIFT));
-	dma_buf_map_set_vaddr_iomem(dmap, addr);
+	iosys_map_set_vaddr_iomem(dmap, addr);
 }
 
 static void ttm_kmap_iter_iomap_unmap_local(struct ttm_kmap_iter *iter,
-					    struct dma_buf_map *map)
+					    struct iosys_map *map)
 {
 	io_mapping_unmap_local(map->vaddr_iomem);
 }
@@ -291,14 +291,14 @@ EXPORT_SYMBOL(ttm_kmap_iter_iomap_init);
  */
 
 static void ttm_kmap_iter_linear_io_map_local(struct ttm_kmap_iter *iter,
-					      struct dma_buf_map *dmap,
+					      struct iosys_map *dmap,
 					      pgoff_t i)
 {
 	struct ttm_kmap_iter_linear_io *iter_io =
 		container_of(iter, typeof(*iter_io), base);
 
 	*dmap = iter_io->dmap;
-	dma_buf_map_incr(dmap, i * PAGE_SIZE);
+	iosys_map_incr(dmap, i * PAGE_SIZE);
 }
 
 static const struct ttm_kmap_iter_ops ttm_kmap_iter_linear_io_ops = {
@@ -334,7 +334,7 @@ ttm_kmap_iter_linear_io_init(struct ttm_kmap_iter_linear_io *iter_io,
 	}
 
 	if (mem->bus.addr) {
-		dma_buf_map_set_vaddr(&iter_io->dmap, mem->bus.addr);
+		iosys_map_set_vaddr(&iter_io->dmap, mem->bus.addr);
 		iter_io->needs_unmap = false;
 	} else {
 		size_t bus_size = (size_t)mem->num_pages << PAGE_SHIFT;
@@ -342,23 +342,23 @@ ttm_kmap_iter_linear_io_init(struct ttm_kmap_iter_linear_io *iter_io,
 		iter_io->needs_unmap = true;
 		memset(&iter_io->dmap, 0, sizeof(iter_io->dmap));
 		if (mem->bus.caching == ttm_write_combined)
-			dma_buf_map_set_vaddr_iomem(&iter_io->dmap,
-						    ioremap_wc(mem->bus.offset,
-							       bus_size));
+			iosys_map_set_vaddr_iomem(&iter_io->dmap,
+						  ioremap_wc(mem->bus.offset,
+							     bus_size));
 		else if (mem->bus.caching == ttm_cached)
-			dma_buf_map_set_vaddr(&iter_io->dmap,
-					      memremap(mem->bus.offset, bus_size,
-						       MEMREMAP_WB |
-						       MEMREMAP_WT |
-						       MEMREMAP_WC));
+			iosys_map_set_vaddr(&iter_io->dmap,
+					    memremap(mem->bus.offset, bus_size,
+						     MEMREMAP_WB |
+						     MEMREMAP_WT |
+						     MEMREMAP_WC));
 
 		/* If uncached requested or if mapping cached or wc failed */
-		if (dma_buf_map_is_null(&iter_io->dmap))
-			dma_buf_map_set_vaddr_iomem(&iter_io->dmap,
-						    ioremap(mem->bus.offset,
-							    bus_size));
+		if (iosys_map_is_null(&iter_io->dmap))
+			iosys_map_set_vaddr_iomem(&iter_io->dmap,
+						  ioremap(mem->bus.offset,
+							  bus_size));
 
-		if (dma_buf_map_is_null(&iter_io->dmap)) {
+		if (iosys_map_is_null(&iter_io->dmap)) {
 			ret = -ENOMEM;
 			goto out_io_free;
 		}
@@ -387,7 +387,7 @@ ttm_kmap_iter_linear_io_fini(struct ttm_kmap_iter_linear_io *iter_io,
 			     struct ttm_device *bdev,
 			     struct ttm_resource *mem)
 {
-	if (iter_io->needs_unmap && dma_buf_map_is_set(&iter_io->dmap)) {
+	if (iter_io->needs_unmap && iosys_map_is_set(&iter_io->dmap)) {
 		if (iter_io->dmap.is_iomem)
 			iounmap(iter_io->dmap.vaddr_iomem);
 		else

drivers/gpu/drm/ttm/ttm_tt.c

@@ -406,18 +406,18 @@ void ttm_tt_mgr_init(unsigned long num_pages, unsigned long num_dma32_pages)
 }
 
 static void ttm_kmap_iter_tt_map_local(struct ttm_kmap_iter *iter,
-				       struct dma_buf_map *dmap,
+				       struct iosys_map *dmap,
 				       pgoff_t i)
 {
 	struct ttm_kmap_iter_tt *iter_tt =
 		container_of(iter, typeof(*iter_tt), base);
 
-	dma_buf_map_set_vaddr(dmap, kmap_local_page_prot(iter_tt->tt->pages[i],
-							 iter_tt->prot));
+	iosys_map_set_vaddr(dmap, kmap_local_page_prot(iter_tt->tt->pages[i],
+						       iter_tt->prot));
 }
 
 static void ttm_kmap_iter_tt_unmap_local(struct ttm_kmap_iter *iter,
-					 struct dma_buf_map *map)
+					 struct iosys_map *map)
 {
 	kunmap_local(map->vaddr);
 }

drivers/gpu/drm/udl/udl_modeset.c

@@ -264,7 +264,8 @@ static int udl_aligned_damage_clip(struct drm_rect *clip, int x, int y,
 	return 0;
 }
 
-static int udl_handle_damage(struct drm_framebuffer *fb, const struct dma_buf_map *map,
+static int udl_handle_damage(struct drm_framebuffer *fb,
+			     const struct iosys_map *map,
 			     int x, int y, int width, int height)
 {
 	struct drm_device *dev = fb->dev;

drivers/gpu/drm/vboxvideo/vbox_mode.c

@@ -10,7 +10,7 @@
  *          Hans de Goede <hdegoede@redhat.com>
  */
 
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 #include <linux/export.h>
 
 #include <drm/drm_atomic.h>
@@ -398,7 +398,7 @@ static void vbox_cursor_atomic_update(struct drm_plane *plane,
 	u32 height = new_state->crtc_h;
 	struct drm_shadow_plane_state *shadow_plane_state =
 		to_drm_shadow_plane_state(new_state);
-	struct dma_buf_map map = shadow_plane_state->data[0];
+	struct iosys_map map = shadow_plane_state->data[0];
 	u8 *src = map.vaddr; /* TODO: Use mapping abstraction properly */
 	size_t data_size, mask_size;
 	u32 flags;

drivers/gpu/drm/vkms/vkms_composer.c

@@ -157,7 +157,7 @@ static void compose_plane(struct vkms_composer *primary_composer,
 	void *vaddr;
 	void (*pixel_blend)(const u8 *p_src, u8 *p_dst);
 
-	if (WARN_ON(dma_buf_map_is_null(&primary_composer->map[0])))
+	if (WARN_ON(iosys_map_is_null(&primary_composer->map[0])))
 		return;
 
 	vaddr = plane_composer->map[0].vaddr;
@@ -187,7 +187,7 @@ static int compose_active_planes(void **vaddr_out,
 		}
 	}
 
-	if (WARN_ON(dma_buf_map_is_null(&primary_composer->map[0])))
+	if (WARN_ON(iosys_map_is_null(&primary_composer->map[0])))
 		return -EINVAL;
 
 	vaddr = primary_composer->map[0].vaddr;

drivers/gpu/drm/vkms/vkms_drv.h

@@ -21,14 +21,14 @@
 #define YRES_MAX  8192
 
 struct vkms_writeback_job {
-	struct dma_buf_map map[DRM_FORMAT_MAX_PLANES];
-	struct dma_buf_map data[DRM_FORMAT_MAX_PLANES];
+	struct iosys_map map[DRM_FORMAT_MAX_PLANES];
+	struct iosys_map data[DRM_FORMAT_MAX_PLANES];
 };
 
 struct vkms_composer {
 	struct drm_framebuffer fb;
 	struct drm_rect src, dst;
-	struct dma_buf_map map[4];
+	struct iosys_map map[4];
 	unsigned int offset;
 	unsigned int pitch;
 	unsigned int cpp;

drivers/gpu/drm/vkms/vkms_plane.c

 // SPDX-License-Identifier: GPL-2.0+
 
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>

drivers/gpu/drm/vkms/vkms_writeback.c

 // SPDX-License-Identifier: GPL-2.0+
 
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 
 #include <drm/drm_atomic.h>
 #include <drm/drm_fourcc.h>

drivers/gpu/drm/xen/xen_drm_front_gem.c

@@ -280,7 +280,8 @@ xen_drm_front_gem_import_sg_table(struct drm_device *dev,
 	return &xen_obj->base;
 }
 
-int xen_drm_front_gem_prime_vmap(struct drm_gem_object *gem_obj, struct dma_buf_map *map)
+int xen_drm_front_gem_prime_vmap(struct drm_gem_object *gem_obj,
+				 struct iosys_map *map)
 {
 	struct xen_gem_object *xen_obj = to_xen_gem_obj(gem_obj);
 	void *vaddr;
@@ -293,13 +294,13 @@ int xen_drm_front_gem_prime_vmap(struct drm_gem_object *gem_obj, struct dma_buf_
 		     VM_MAP, PAGE_KERNEL);
 	if (!vaddr)
 		return -ENOMEM;
-	dma_buf_map_set_vaddr(map, vaddr);
+	iosys_map_set_vaddr(map, vaddr);
 
 	return 0;
 }
 
 void xen_drm_front_gem_prime_vunmap(struct drm_gem_object *gem_obj,
-				    struct dma_buf_map *map)
+				    struct iosys_map *map)
 {
 	vunmap(map->vaddr);
 }

drivers/gpu/drm/xen/xen_drm_front_gem.h

@@ -12,7 +12,7 @@
 #define __XEN_DRM_FRONT_GEM_H
 
 struct dma_buf_attachment;
-struct dma_buf_map;
+struct iosys_map;
 struct drm_device;
 struct drm_gem_object;
 struct sg_table;
@@ -32,9 +32,9 @@ struct page **xen_drm_front_gem_get_pages(struct drm_gem_object *obj);
 void xen_drm_front_gem_free_object_unlocked(struct drm_gem_object *gem_obj);
 
 int xen_drm_front_gem_prime_vmap(struct drm_gem_object *gem_obj,
-				 struct dma_buf_map *map);
+				 struct iosys_map *map);
 
 void xen_drm_front_gem_prime_vunmap(struct drm_gem_object *gem_obj,
-				    struct dma_buf_map *map);
+				    struct iosys_map *map);
 
 #endif /* __XEN_DRM_FRONT_GEM_H */

drivers/media/common/videobuf2/videobuf2-dma-contig.c

@@ -99,7 +99,7 @@ static void *vb2_dc_vaddr(struct vb2_buffer *vb, void *buf_priv)
 		return buf->vaddr;
 
 	if (buf->db_attach) {
-		struct dma_buf_map map;
+		struct iosys_map map;
 
 		if (!dma_buf_vmap(buf->db_attach->dmabuf, &map))
 			buf->vaddr = map.vaddr;
@@ -446,7 +446,7 @@ vb2_dc_dmabuf_ops_end_cpu_access(struct dma_buf *dbuf,
 	return 0;
 }
 
-static int vb2_dc_dmabuf_ops_vmap(struct dma_buf *dbuf, struct dma_buf_map *map)
+static int vb2_dc_dmabuf_ops_vmap(struct dma_buf *dbuf, struct iosys_map *map)
 {
 	struct vb2_dc_buf *buf;
 	void *vaddr;
@@ -456,7 +456,7 @@ static int vb2_dc_dmabuf_ops_vmap(struct dma_buf *dbuf, struct dma_buf_map *map)
 	if (!vaddr)
 		return -EINVAL;
 
-	dma_buf_map_set_vaddr(map, vaddr);
+	iosys_map_set_vaddr(map, vaddr);
 
 	return 0;
 }
@@ -737,7 +737,7 @@ static void vb2_dc_unmap_dmabuf(void *mem_priv)
 {
 	struct vb2_dc_buf *buf = mem_priv;
 	struct sg_table *sgt = buf->dma_sgt;
-	struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(buf->vaddr);
+	struct iosys_map map = IOSYS_MAP_INIT_VADDR(buf->vaddr);
 
 	if (WARN_ON(!buf->db_attach)) {
 		pr_err("trying to unpin a not attached buffer\n");

drivers/media/common/videobuf2/videobuf2-dma-sg.c

@@ -303,7 +303,7 @@ static void vb2_dma_sg_put_userptr(void *buf_priv)
 static void *vb2_dma_sg_vaddr(struct vb2_buffer *vb, void *buf_priv)
 {
 	struct vb2_dma_sg_buf *buf = buf_priv;
-	struct dma_buf_map map;
+	struct iosys_map map;
 	int ret;
 
 	BUG_ON(!buf);
@@ -492,11 +492,12 @@ vb2_dma_sg_dmabuf_ops_end_cpu_access(struct dma_buf *dbuf,
 	return 0;
 }
 
-static int vb2_dma_sg_dmabuf_ops_vmap(struct dma_buf *dbuf, struct dma_buf_map *map)
+static int vb2_dma_sg_dmabuf_ops_vmap(struct dma_buf *dbuf,
+				      struct iosys_map *map)
 {
 	struct vb2_dma_sg_buf *buf = dbuf->priv;
 
-	dma_buf_map_set_vaddr(map, buf->vaddr);
+	iosys_map_set_vaddr(map, buf->vaddr);
 
 	return 0;
 }
@@ -581,7 +582,7 @@ static void vb2_dma_sg_unmap_dmabuf(void *mem_priv)
 {
 	struct vb2_dma_sg_buf *buf = mem_priv;
 	struct sg_table *sgt = buf->dma_sgt;
-	struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(buf->vaddr);
+	struct iosys_map map = IOSYS_MAP_INIT_VADDR(buf->vaddr);
 
 	if (WARN_ON(!buf->db_attach)) {
 		pr_err("trying to unpin a not attached buffer\n");

drivers/media/common/videobuf2/videobuf2-vmalloc.c

@@ -312,11 +312,12 @@ static void vb2_vmalloc_dmabuf_ops_release(struct dma_buf *dbuf)
 	vb2_vmalloc_put(dbuf->priv);
 }
 
-static int vb2_vmalloc_dmabuf_ops_vmap(struct dma_buf *dbuf, struct dma_buf_map *map)
+static int vb2_vmalloc_dmabuf_ops_vmap(struct dma_buf *dbuf,
+				       struct iosys_map *map)
 {
 	struct vb2_vmalloc_buf *buf = dbuf->priv;
 
-	dma_buf_map_set_vaddr(map, buf->vaddr);
+	iosys_map_set_vaddr(map, buf->vaddr);
 
 	return 0;
 }
@@ -372,7 +373,7 @@ static struct dma_buf *vb2_vmalloc_get_dmabuf(struct vb2_buffer *vb,
 static int vb2_vmalloc_map_dmabuf(void *mem_priv)
 {
 	struct vb2_vmalloc_buf *buf = mem_priv;
-	struct dma_buf_map map;
+	struct iosys_map map;
 	int ret;
 
 	ret = dma_buf_vmap(buf->dbuf, &map);
@@ -386,7 +387,7 @@ static int vb2_vmalloc_map_dmabuf(void *mem_priv)
 static void vb2_vmalloc_unmap_dmabuf(void *mem_priv)
 {
 	struct vb2_vmalloc_buf *buf = mem_priv;
-	struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(buf->vaddr);
+	struct iosys_map map = IOSYS_MAP_INIT_VADDR(buf->vaddr);
 
 	dma_buf_vunmap(buf->dbuf, &map);
 	buf->vaddr = NULL;
@@ -395,7 +396,7 @@ static void vb2_vmalloc_unmap_dmabuf(void *mem_priv)
 static void vb2_vmalloc_detach_dmabuf(void *mem_priv)
 {
 	struct vb2_vmalloc_buf *buf = mem_priv;
-	struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(buf->vaddr);
+	struct iosys_map map = IOSYS_MAP_INIT_VADDR(buf->vaddr);
 
 	if (buf->vaddr)
 		dma_buf_vunmap(buf->dbuf, &map);

drivers/misc/fastrpc.c

@@ -587,11 +587,11 @@ static void fastrpc_dma_buf_detatch(struct dma_buf *dmabuf,
 	kfree(a);
 }
 
-static int fastrpc_vmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
+static int fastrpc_vmap(struct dma_buf *dmabuf, struct iosys_map *map)
 {
 	struct fastrpc_buf *buf = dmabuf->priv;
 
-	dma_buf_map_set_vaddr(map, buf->virt);
+	iosys_map_set_vaddr(map, buf->virt);
 
 	return 0;
 }

include/drm/drm_cache.h

@@ -35,7 +35,7 @@
 
 #include <linux/scatterlist.h>
 
-struct dma_buf_map;
+struct iosys_map;
 
 void drm_clflush_pages(struct page *pages[], unsigned long num_pages);
 void drm_clflush_sg(struct sg_table *st);
@@ -74,7 +74,7 @@ static inline bool drm_arch_can_wc_memory(void)
 
 void drm_memcpy_init_early(void);
 
-void drm_memcpy_from_wc(struct dma_buf_map *dst,
-			const struct dma_buf_map *src,
+void drm_memcpy_from_wc(struct iosys_map *dst,
+			const struct iosys_map *src,
 			unsigned long len);
 #endif

include/drm/drm_client.h

@@ -3,7 +3,7 @@
 #ifndef _DRM_CLIENT_H_
 #define _DRM_CLIENT_H_
 
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 #include <linux/lockdep.h>
 #include <linux/mutex.h>
 #include <linux/types.h>
@@ -144,7 +144,7 @@ struct drm_client_buffer {
 	/**
 	 * @map: Virtual address for the buffer
 	 */
-	struct dma_buf_map map;
+	struct iosys_map map;
 
 	/**
 	 * @fb: DRM framebuffer
@@ -156,7 +156,8 @@ struct drm_client_buffer *
 drm_client_framebuffer_create(struct drm_client_dev *client, u32 width, u32 height, u32 format);
 void drm_client_framebuffer_delete(struct drm_client_buffer *buffer);
 int drm_client_framebuffer_flush(struct drm_client_buffer *buffer, struct drm_rect *rect);
-int drm_client_buffer_vmap(struct drm_client_buffer *buffer, struct dma_buf_map *map);
+int drm_client_buffer_vmap(struct drm_client_buffer *buffer,
+			   struct iosys_map *map);
 void drm_client_buffer_vunmap(struct drm_client_buffer *buffer);
 
 int drm_client_modeset_create(struct drm_client_dev *client);

include/drm/drm_gem.h

@@ -39,7 +39,7 @@
 
 #include <drm/drm_vma_manager.h>
 
-struct dma_buf_map;
+struct iosys_map;
 struct drm_gem_object;
 
 /**
@@ -139,7 +139,7 @@ struct drm_gem_object_funcs {
 	 *
 	 * This callback is optional.
 	 */
-	int (*vmap)(struct drm_gem_object *obj, struct dma_buf_map *map);
+	int (*vmap)(struct drm_gem_object *obj, struct iosys_map *map);
 
 	/**
 	 * @vunmap:
@@ -149,7 +149,7 @@ struct drm_gem_object_funcs {
 	 *
 	 * This callback is optional.
 	 */
-	void (*vunmap)(struct drm_gem_object *obj, struct dma_buf_map *map);
+	void (*vunmap)(struct drm_gem_object *obj, struct iosys_map *map);
 
 	/**
 	 * @mmap:

include/drm/drm_gem_atomic_helper.h

@@ -3,7 +3,7 @@
 #ifndef __DRM_GEM_ATOMIC_HELPER_H__
 #define __DRM_GEM_ATOMIC_HELPER_H__
 
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 
 #include <drm/drm_fourcc.h>
 #include <drm/drm_plane.h>
@@ -59,7 +59,7 @@ struct drm_shadow_plane_state {
 	 * The memory mappings stored in map should be established in the plane's
 	 * prepare_fb callback and removed in the cleanup_fb callback.
 	 */
-	struct dma_buf_map map[DRM_FORMAT_MAX_PLANES];
+	struct iosys_map map[DRM_FORMAT_MAX_PLANES];
 
 	/**
 	 * @data: Address of each framebuffer BO's data
@@ -67,7 +67,7 @@ struct drm_shadow_plane_state {
 	 * The address of the data stored in each mapping. This is different
 	 * for framebuffers with non-zero offset fields.
 	 */
-	struct dma_buf_map data[DRM_FORMAT_MAX_PLANES];
+	struct iosys_map data[DRM_FORMAT_MAX_PLANES];
 };
 
 /**

include/drm/drm_gem_cma_helper.h

@@ -38,7 +38,8 @@ void drm_gem_cma_free(struct drm_gem_cma_object *cma_obj);
 void drm_gem_cma_print_info(const struct drm_gem_cma_object *cma_obj,
 			    struct drm_printer *p, unsigned int indent);
 struct sg_table *drm_gem_cma_get_sg_table(struct drm_gem_cma_object *cma_obj);
-int drm_gem_cma_vmap(struct drm_gem_cma_object *cma_obj, struct dma_buf_map *map);
+int drm_gem_cma_vmap(struct drm_gem_cma_object *cma_obj,
+		     struct iosys_map *map);
 int drm_gem_cma_mmap(struct drm_gem_cma_object *cma_obj, struct vm_area_struct *vma);
 
 extern const struct vm_operations_struct drm_gem_cma_vm_ops;
@@ -106,7 +107,8 @@ static inline struct sg_table *drm_gem_cma_object_get_sg_table(struct drm_gem_ob
  * Returns:
  * 0 on success or a negative error code on failure.
  */
-static inline int drm_gem_cma_object_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+static inline int drm_gem_cma_object_vmap(struct drm_gem_object *obj,
+					  struct iosys_map *map)
 {
 	struct drm_gem_cma_object *cma_obj = to_drm_gem_cma_obj(obj);
 

include/drm/drm_gem_framebuffer_helper.h

@@ -2,7 +2,7 @@
 #define __DRM_GEM_FB_HELPER_H__
 
 #include <linux/dma-buf.h>
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 
 #include <drm/drm_fourcc.h>
 
@@ -40,10 +40,10 @@ drm_gem_fb_create_with_dirty(struct drm_device *dev, struct drm_file *file,
 			     const struct drm_mode_fb_cmd2 *mode_cmd);
 
 int drm_gem_fb_vmap(struct drm_framebuffer *fb,
-		    struct dma_buf_map map[static DRM_FORMAT_MAX_PLANES],
-		    struct dma_buf_map data[DRM_FORMAT_MAX_PLANES]);
+		    struct iosys_map map[static DRM_FORMAT_MAX_PLANES],
+		    struct iosys_map data[DRM_FORMAT_MAX_PLANES]);
 void drm_gem_fb_vunmap(struct drm_framebuffer *fb,
-		       struct dma_buf_map map[static DRM_FORMAT_MAX_PLANES]);
+		       struct iosys_map map[static DRM_FORMAT_MAX_PLANES]);
 int drm_gem_fb_begin_cpu_access(struct drm_framebuffer *fb, enum dma_data_direction dir);
 void drm_gem_fb_end_cpu_access(struct drm_framebuffer *fb, enum dma_data_direction dir);
 

include/drm/drm_gem_shmem_helper.h

@@ -113,8 +113,10 @@ int drm_gem_shmem_get_pages(struct drm_gem_shmem_object *shmem);
 void drm_gem_shmem_put_pages(struct drm_gem_shmem_object *shmem);
 int drm_gem_shmem_pin(struct drm_gem_shmem_object *shmem);
 void drm_gem_shmem_unpin(struct drm_gem_shmem_object *shmem);
-int drm_gem_shmem_vmap(struct drm_gem_shmem_object *shmem, struct dma_buf_map *map);
-void drm_gem_shmem_vunmap(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);
+void drm_gem_shmem_vunmap(struct drm_gem_shmem_object *shmem,
+			  struct iosys_map *map);
 int drm_gem_shmem_mmap(struct drm_gem_shmem_object *shmem, struct vm_area_struct *vma);
 
 int drm_gem_shmem_madvise(struct drm_gem_shmem_object *shmem, int madv);
@@ -226,7 +228,8 @@ static inline struct sg_table *drm_gem_shmem_object_get_sg_table(struct drm_gem_
  * Returns:
  * 0 on success or a negative error code on failure.
  */
-static inline int drm_gem_shmem_object_vmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+static inline int drm_gem_shmem_object_vmap(struct drm_gem_object *obj,
+					    struct iosys_map *map)
 {
 	struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
 
@@ -241,7 +244,8 @@ static inline int drm_gem_shmem_object_vmap(struct drm_gem_object *obj, struct d
  * This function wraps drm_gem_shmem_vunmap(). Drivers that employ the shmem helpers should
  * use it as their &drm_gem_object_funcs.vunmap handler.
  */
-static inline void drm_gem_shmem_object_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+static inline void drm_gem_shmem_object_vunmap(struct drm_gem_object *obj,
+					       struct iosys_map *map)
 {
 	struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
 

include/drm/drm_gem_ttm_helper.h

@@ -10,7 +10,7 @@
 #include <drm/ttm/ttm_bo_api.h>
 #include <drm/ttm/ttm_bo_driver.h>
 
-struct dma_buf_map;
+struct iosys_map;
 
 #define drm_gem_ttm_of_gem(gem_obj) \
 	container_of(gem_obj, struct ttm_buffer_object, base)
@@ -18,9 +18,9 @@ struct dma_buf_map;
 void drm_gem_ttm_print_info(struct drm_printer *p, unsigned int indent,
 			    const struct drm_gem_object *gem);
 int drm_gem_ttm_vmap(struct drm_gem_object *gem,
-		     struct dma_buf_map *map);
+		     struct iosys_map *map);
 void drm_gem_ttm_vunmap(struct drm_gem_object *gem,
-			struct dma_buf_map *map);
+			struct iosys_map *map);
 int drm_gem_ttm_mmap(struct drm_gem_object *gem,
 		     struct vm_area_struct *vma);
 

include/drm/drm_gem_vram_helper.h

@@ -12,7 +12,7 @@
 #include <drm/ttm/ttm_bo_driver.h>
 
 #include <linux/container_of.h>
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 
 struct drm_mode_create_dumb;
 struct drm_plane;
@@ -51,7 +51,7 @@ struct vm_area_struct;
  */
 struct drm_gem_vram_object {
 	struct ttm_buffer_object bo;
-	struct dma_buf_map map;
+	struct iosys_map map;
 
 	/**
 	 * @vmap_use_count:
@@ -97,8 +97,9 @@ void drm_gem_vram_put(struct drm_gem_vram_object *gbo);
 s64 drm_gem_vram_offset(struct drm_gem_vram_object *gbo);
 int drm_gem_vram_pin(struct drm_gem_vram_object *gbo, unsigned long pl_flag);
 int drm_gem_vram_unpin(struct drm_gem_vram_object *gbo);
-int drm_gem_vram_vmap(struct drm_gem_vram_object *gbo, struct dma_buf_map *map);
-void drm_gem_vram_vunmap(struct drm_gem_vram_object *gbo, struct dma_buf_map *map);
+int drm_gem_vram_vmap(struct drm_gem_vram_object *gbo, struct iosys_map *map);
+void drm_gem_vram_vunmap(struct drm_gem_vram_object *gbo,
+			 struct iosys_map *map);
 
 int drm_gem_vram_fill_create_dumb(struct drm_file *file,
 				  struct drm_device *dev,

include/drm/drm_prime.h

@@ -54,7 +54,7 @@ struct device;
 struct dma_buf_export_info;
 struct dma_buf;
 struct dma_buf_attachment;
-struct dma_buf_map;
+struct iosys_map;
 
 enum dma_data_direction;
 
@@ -83,8 +83,8 @@ struct sg_table *drm_gem_map_dma_buf(struct dma_buf_attachment *attach,
 void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
 			   struct sg_table *sgt,
 			   enum dma_data_direction dir);
-int drm_gem_dmabuf_vmap(struct dma_buf *dma_buf, struct dma_buf_map *map);
-void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, struct dma_buf_map *map);
+int drm_gem_dmabuf_vmap(struct dma_buf *dma_buf, struct iosys_map *map);
+void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, struct iosys_map *map);
 
 int drm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
 int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma);

include/drm/ttm/ttm_bo_api.h

@@ -47,7 +47,7 @@ struct ttm_global;
 
 struct ttm_device;
 
-struct dma_buf_map;
+struct iosys_map;
 
 struct drm_mm_node;
 
@@ -481,17 +481,17 @@ void ttm_bo_kunmap(struct ttm_bo_kmap_obj *map);
  * ttm_bo_vmap
  *
  * @bo: The buffer object.
- * @map: pointer to a struct dma_buf_map representing the map.
+ * @map: pointer to a struct iosys_map representing the map.
  *
  * Sets up a kernel virtual mapping, using ioremap or vmap to the
  * data in the buffer object. The parameter @map returns the virtual
- * address as struct dma_buf_map. Unmap the buffer with ttm_bo_vunmap().
+ * address as struct iosys_map. Unmap the buffer with ttm_bo_vunmap().
  *
  * Returns
  * -ENOMEM: Out of memory.
  * -EINVAL: Invalid range.
  */
-int ttm_bo_vmap(struct ttm_buffer_object *bo, struct dma_buf_map *map);
+int ttm_bo_vmap(struct ttm_buffer_object *bo, struct iosys_map *map);
 
 /**
  * ttm_bo_vunmap
@@ -501,7 +501,7 @@ int ttm_bo_vmap(struct ttm_buffer_object *bo, struct dma_buf_map *map);
  *
  * Unmaps a kernel map set up by ttm_bo_vmap().
  */
-void ttm_bo_vunmap(struct ttm_buffer_object *bo, struct dma_buf_map *map);
+void ttm_bo_vunmap(struct ttm_buffer_object *bo, struct iosys_map *map);
 
 /**
  * ttm_bo_mmap_obj - mmap memory backed by a ttm buffer object.

include/drm/ttm/ttm_kmap_iter.h

@@ -8,7 +8,7 @@
 #include <linux/types.h>
 
 struct ttm_kmap_iter;
-struct dma_buf_map;
+struct iosys_map;
 
 /**
  * struct ttm_kmap_iter_ops - Ops structure for a struct
@@ -24,22 +24,22 @@ struct ttm_kmap_iter_ops {
 	 * kmap_local semantics.
 	 * @res_iter: Pointer to the struct ttm_kmap_iter representing
 	 * the resource.
-	 * @dmap: The struct dma_buf_map holding the virtual address after
+	 * @dmap: The struct iosys_map holding the virtual address after
 	 * the operation.
 	 * @i: The location within the resource to map. PAGE_SIZE granularity.
 	 */
 	void (*map_local)(struct ttm_kmap_iter *res_iter,
-			  struct dma_buf_map *dmap, pgoff_t i);
+			  struct iosys_map *dmap, pgoff_t i);
 	/**
 	 * unmap_local() - Unmap a PAGE_SIZE part of the resource previously
 	 * mapped using kmap_local.
 	 * @res_iter: Pointer to the struct ttm_kmap_iter representing
 	 * the resource.
-	 * @dmap: The struct dma_buf_map holding the virtual address after
+	 * @dmap: The struct iosys_map holding the virtual address after
 	 * the operation.
 	 */
 	void (*unmap_local)(struct ttm_kmap_iter *res_iter,
-			    struct dma_buf_map *dmap);
+			    struct iosys_map *dmap);
 	bool maps_tt;
 };
 

include/drm/ttm/ttm_resource.h

@@ -27,7 +27,7 @@
 
 #include <linux/types.h>
 #include <linux/mutex.h>
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 #include <linux/dma-fence.h>
 #include <drm/drm_print.h>
 #include <drm/ttm/ttm_caching.h>
@@ -41,7 +41,7 @@ struct ttm_resource;
 struct ttm_place;
 struct ttm_buffer_object;
 struct ttm_placement;
-struct dma_buf_map;
+struct iosys_map;
 struct io_mapping;
 struct sg_table;
 struct scatterlist;
@@ -207,7 +207,7 @@ struct ttm_kmap_iter_iomap {
  */
 struct ttm_kmap_iter_linear_io {
 	struct ttm_kmap_iter base;
-	struct dma_buf_map dmap;
+	struct iosys_map dmap;
 	bool needs_unmap;
 };
 

include/linux/dma-buf.h

@@ -13,7 +13,7 @@
 #ifndef __DMA_BUF_H__
 #define __DMA_BUF_H__
 
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
 #include <linux/file.h>
 #include <linux/err.h>
 #include <linux/scatterlist.h>
@@ -283,8 +283,8 @@ struct dma_buf_ops {
 	 */
 	int (*mmap)(struct dma_buf *, struct vm_area_struct *vma);
 
-	int (*vmap)(struct dma_buf *dmabuf, struct dma_buf_map *map);
-	void (*vunmap)(struct dma_buf *dmabuf, struct dma_buf_map *map);
+	int (*vmap)(struct dma_buf *dmabuf, struct iosys_map *map);
+	void (*vunmap)(struct dma_buf *dmabuf, struct iosys_map *map);
 };
 
 /**
@@ -347,7 +347,7 @@ struct dma_buf {
 	 * @vmap_ptr:
 	 * The current vmap ptr if @vmapping_counter > 0. Protected by @lock.
 	 */
-	struct dma_buf_map vmap_ptr;
+	struct iosys_map vmap_ptr;
 
 	/**
 	 * @exp_name:
@@ -628,6 +628,6 @@ int dma_buf_end_cpu_access(struct dma_buf *dma_buf,
 
 int dma_buf_mmap(struct dma_buf *, struct vm_area_struct *,
 		 unsigned long);
-int dma_buf_vmap(struct dma_buf *dmabuf, struct dma_buf_map *map);
-void dma_buf_vunmap(struct dma_buf *dmabuf, struct dma_buf_map *map);
+int dma_buf_vmap(struct dma_buf *dmabuf, struct iosys_map *map);
+void dma_buf_vunmap(struct dma_buf *dmabuf, struct iosys_map *map);
 #endif /* __DMA_BUF_H__ */