Re: [PATCH v3] dma-buf-map: Rename to iosys-map

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Am 03.02.22 um 10:29 schrieb Thomas Zimmermann:
Hi

Am 03.02.22 um 09:56 schrieb Lucas De Marchi:
[...]

diff --git a/Documentation/driver-api/device-io.rst b/Documentation/driver-api/device-io.rst
index e9f04b1815d1..f9dede8639c7 100644
--- a/Documentation/driver-api/device-io.rst
+++ b/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.
  +System/IO memory abstraction

"Generalizing Access to System and I/O Memory"

With the headline changed, please add my

Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx>

Technically, this patch belongs into drm-misc-next, but you have a larger use case for i915. The patchset would best go through drm-intel-next, I guess.

Both approaches work for me, just let me know if I should push something somewhere.

Regards,
Christian.


Best regards
Thomas

+----------------------------
+
+.. kernel-doc:: include/linux/iosys-map.h
+   :doc: overview
+
+.. kernel-doc:: include/linux/iosys-map.h
+   :internal:
+
  Public Functions Provided
  =========================
  diff --git a/Documentation/driver-api/dma-buf.rst b/Documentation/driver-api/dma-buf.rst
index 2cd7db82d9fe..55006678394a 100644
--- a/Documentation/driver-api/dma-buf.rst
+++ b/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
  -------------------
  diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst
index 1b2372ef4131..ee842606e883 100644
--- a/Documentation/gpu/todo.rst
+++ b/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@xxxxxxx>, 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@xxxxxxx>, Christian König, Daniel Vetter
  diff --git a/MAINTAINERS b/MAINTAINERS
index 0d914702950f..45c97e71c8c1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5675,7 +5675,7 @@ 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
  @@ -9977,6 +9977,13 @@ F:    include/linux/iova.h
  F:    include/linux/of_iommu.h
  F:    include/uapi/linux/iommu.h
  +IOSYS-MAP HELPERS
+M:    Thomas Zimmermann <tzimmermann@xxxxxxx>
+L:    dri-devel@xxxxxxxxxxxxxxxxxxxxx
+S:    Maintained
+T:    git git://anongit.freedesktop.org/drm/drm-misc
+F:    include/linux/iosys-map.h
+
  IO_URING
  M:    Jens Axboe <axboe@xxxxxxxxx>
  R:    Pavel Begunkov <asml.silence@xxxxxxxxx>
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 602b12d7470d..df23239b04fc 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/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);
  }
diff --git a/drivers/dma-buf/heaps/cma_heap.c b/drivers/dma-buf/heaps/cma_heap.c
index 0c05b79870f9..07ace3ccb266 100644
--- a/drivers/dma-buf/heaps/cma_heap.c
+++ b/drivers/dma-buf/heaps/cma_heap.c
@@ -200,7 +200,7 @@ 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;
@@ -209,7 +209,7 @@ 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;
      }
  @@ -220,14 +220,14 @@ 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;
  @@ -237,7 +237,7 @@ 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)
diff --git a/drivers/dma-buf/heaps/system_heap.c b/drivers/dma-buf/heaps/system_heap.c
index ab7fd896d2c4..fcf836ba9c1f 100644
--- a/drivers/dma-buf/heaps/system_heap.c
+++ b/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)
diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h
index 00bfa41ff7cb..9c8d56b0a41b 100644
--- a/drivers/gpu/drm/ast/ast_drv.h
+++ b/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];
  diff --git a/drivers/gpu/drm/ast/ast_mode.c b/drivers/gpu/drm/ast/ast_mode.c
index 6fa8042a0dfd..2759e977d95d 100644
--- a/drivers/gpu/drm/ast/ast_mode.c
+++ b/drivers/gpu/drm/ast/ast_mode.c
@@ -804,11 +804,11 @@ 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;
@@ -886,7 +886,7 @@ 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;
@@ -913,7 +913,7 @@ 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;
  diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c
index f19d9acbe959..4bb093ccf1b8 100644
--- a/drivers/gpu/drm/drm_cache.c
+++ b/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());
diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c
index ce45e380f4a2..af3b7395bf69 100644
--- a/drivers/gpu/drm/drm_client.c
+++ b/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);
  }
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 805c5a666490..709d1eb31899 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/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;
        /*
@@ -2316,7 +2316,7 @@ 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",
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 4dcdec6487bb..8c7b24f4b0e4 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/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);
  diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c
index cefd0cbf9deb..88c432a7cb3c 100644
--- a/drivers/gpu/drm/drm_gem_cma_helper.c
+++ b/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);
diff --git a/drivers/gpu/drm/drm_gem_framebuffer_helper.c b/drivers/gpu/drm/drm_gem_framebuffer_helper.c
index 746fd8c73845..f4619803acd0 100644
--- a/drivers/gpu/drm/drm_gem_framebuffer_helper.c
+++ b/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]);
      }
diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index 621924116eb4..3e738aea2664 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/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);
diff --git a/drivers/gpu/drm/drm_gem_ttm_helper.c b/drivers/gpu/drm/drm_gem_ttm_helper.c
index ecf3d2a54a98..d5962a34c01d 100644
--- a/drivers/gpu/drm/drm_gem_ttm_helper.c
+++ b/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);
  diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
index 3f00192215d1..dc7f938bfff2 100644
--- a/drivers/gpu/drm/drm_gem_vram_helper.c
+++ b/drivers/gpu/drm/drm_gem_vram_helper.c
@@ -1,6 +1,6 @@
  // 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);
  diff --git a/drivers/gpu/drm/drm_internal.h b/drivers/gpu/drm/drm_internal.h
index 17f3548c8ed2..1fbbc19f1ac0 100644
--- a/drivers/gpu/drm/drm_internal.h
+++ b/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);
diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c
index 0327d595e028..9314f2ead79f 100644
--- a/drivers/gpu/drm/drm_mipi_dbi.c
+++ b/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;
diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index c773d3dfb1ab..e3f09f18110c 100644
--- a/drivers/gpu/drm/drm_prime.c
+++ b/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;
  diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
index 049ae87de9be..f32f4771dada 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h
+++ b/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);
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
index 6788ea8490d1..3fa2da149639 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
+++ b/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);
diff --git a/drivers/gpu/drm/gud/gud_pipe.c b/drivers/gpu/drm/gud/gud_pipe.c
index a150a5a4b5d4..4873f9799f41 100644
--- a/drivers/gpu/drm/gud/gud_pipe.c
+++ b/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;
diff --git a/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c b/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c
index 93f51e70a951..e82b815f83a6 100644
--- a/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c
+++ b/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,
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
index 1b526039a60d..14fdb0796c52 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c
+++ b/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);
  diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c
index 3cc74b0fed06..b071a58dd6da 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c
+++ b/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;
  diff --git a/drivers/gpu/drm/i915/gem/selftests/mock_dmabuf.c b/drivers/gpu/drm/i915/gem/selftests/mock_dmabuf.c
index 2855d11c7a51..b2a5882b8f81 100644
--- a/drivers/gpu/drm/i915/gem/selftests/mock_dmabuf.c
+++ b/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);
  diff --git a/drivers/gpu/drm/lima/lima_gem.c b/drivers/gpu/drm/lima/lima_gem.c
index f9a9198ef198..d0c2b1422b3b 100644
--- a/drivers/gpu/drm/lima/lima_gem.c
+++ b/drivers/gpu/drm/lima/lima_gem.c
@@ -2,6 +2,7 @@
  /* Copyright 2017-2019 Qiang Yu <yuq825@xxxxxxxxx> */
    #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);
  diff --git a/drivers/gpu/drm/lima/lima_sched.c b/drivers/gpu/drm/lima/lima_sched.c
index 5612d73f238f..390c969f74ad 100644
--- a/drivers/gpu/drm/lima/lima_sched.c
+++ b/drivers/gpu/drm/lima/lima_sched.c
@@ -1,7 +1,7 @@
  // SPDX-License-Identifier: GPL-2.0 OR MIT
  /* Copyright 2017-2019 Qiang Yu <yuq825@xxxxxxxxx> */
  -#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);
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
index d0544962cfc1..139d7724c6d0 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c
+++ b/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;
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.h b/drivers/gpu/drm/mediatek/mtk_drm_gem.h
index 9a359a06cb73..78f23b07a02e 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_gem.h
+++ b/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
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index cd9ba13ad5fc..6e18d3bbd720 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/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>
@@ -848,7 +848,7 @@ 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 */ diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index eb984d925f4d..c70868a3ac53 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -306,8 +306,8 @@ 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);
diff --git a/drivers/gpu/drm/msm/msm_gem_prime.c b/drivers/gpu/drm/msm/msm_gem_prime.c
index fc94e061d6a7..e8f1b7a2ca9c 100644
--- a/drivers/gpu/drm/msm/msm_gem_prime.c
+++ b/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);
  }
diff --git a/drivers/gpu/drm/panfrost/panfrost_perfcnt.c b/drivers/gpu/drm/panfrost/panfrost_perfcnt.c
index 1d36df5af98d..bc0df93f7f21 100644
--- a/drivers/gpu/drm/panfrost/panfrost_perfcnt.c
+++ b/drivers/gpu/drm/panfrost/panfrost_perfcnt.c
@@ -1,16 +1,17 @@
  // 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;
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 9e0a1e836011..9a9c29b1d3e1 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/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);
  diff --git a/drivers/gpu/drm/qxl/qxl_draw.c b/drivers/gpu/drm/qxl/qxl_draw.c
index 7d27891e87fa..a93de9e1977a 100644
--- a/drivers/gpu/drm/qxl/qxl_draw.c
+++ b/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;
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 29641ceaab7d..47c169673088 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/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"
  @@ -80,7 +80,7 @@ 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;
@@ -427,9 +427,9 @@ 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);
diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c
index fbb36e3e8564..b42a657e4c2f 100644
--- a/drivers/gpu/drm/qxl/qxl_object.c
+++ b/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;
diff --git a/drivers/gpu/drm/qxl/qxl_object.h b/drivers/gpu/drm/qxl/qxl_object.h
index cee4b52b75dd..53392cb90eec 100644
--- a/drivers/gpu/drm/qxl/qxl_object.h
+++ b/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); diff --git a/drivers/gpu/drm/qxl/qxl_prime.c b/drivers/gpu/drm/qxl/qxl_prime.c
index 4a10cb0a413b..142d01415acb 100644
--- a/drivers/gpu/drm/qxl/qxl_prime.c
+++ b/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);
  diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index a36a4f2c76b0..f563284a7fac 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/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>
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
index 63eb73b624aa..985584147da1 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c
+++ b/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);
  diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.h b/drivers/gpu/drm/rockchip/rockchip_drm_gem.h
index 47c1861eece0..72f59ac6d258 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.h
+++ b/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,
diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
index d38fd7e12b57..ef208384665e 100644
--- a/drivers/gpu/drm/tegra/gem.c
+++ b/drivers/gpu/drm/tegra/gem.c
@@ -135,7 +135,7 @@ static void tegra_bo_unpin(struct device *dev, struct sg_table *sgt)
  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) {
@@ -152,7 +152,7 @@ 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;
@@ -650,17 +650,17 @@ 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)
  {
  }
  diff --git a/drivers/gpu/drm/tiny/cirrus.c b/drivers/gpu/drm/tiny/cirrus.c
index ecf2475d0f16..c8e791840862 100644
--- a/drivers/gpu/drm/tiny/cirrus.c
+++ b/drivers/gpu/drm/tiny/cirrus.c
@@ -16,7 +16,7 @@
   * Copyright 1999-2001 Jeff Garzik <jgarzik@xxxxxxxxx>
   */
  -#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
  #include <linux/module.h>
  #include <linux/pci.h>
  @@ -313,7 +313,8 @@ 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);
@@ -345,7 +346,8 @@ 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,
diff --git a/drivers/gpu/drm/tiny/gm12u320.c b/drivers/gpu/drm/tiny/gm12u320.c
index 6bc0c298739c..648e585d40a8 100644
--- a/drivers/gpu/drm/tiny/gm12u320.c
+++ b/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);
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 544a84fa6589..2b8caa1efaa3 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/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 */
@@ -390,7 +390,7 @@ 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;
@@ -418,7 +418,7 @@ 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 = {
@@ -442,25 +442,25 @@ 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);
  }
diff --git a/drivers/gpu/drm/ttm/ttm_resource.c b/drivers/gpu/drm/ttm/ttm_resource.c
index 68344c90549b..eedda3761506 100644
--- a/drivers/gpu/drm/ttm/ttm_resource.c
+++ b/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>
  @@ -244,7 +244,7 @@ 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 =
@@ -271,11 +271,11 @@ 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);
  }
@@ -326,14 +326,14 @@ 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 = { @@ -369,7 +369,7 @@ 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;
@@ -377,23 +377,23 @@ 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,
+            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,
+            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,
+        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;
          }
@@ -422,7 +422,7 @@ 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
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index 79c870a3bef8..ef6343b78d71 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/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], +    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);
  }
diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
index 32232228dae9..e67c40a48fb4 100644
--- a/drivers/gpu/drm/udl/udl_modeset.c
+++ b/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;
diff --git a/drivers/gpu/drm/vboxvideo/vbox_mode.c b/drivers/gpu/drm/vboxvideo/vbox_mode.c
index 4227a915b06a..4017b0a621fc 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
@@ -10,7 +10,7 @@
   *          Hans de Goede <hdegoede@xxxxxxxxxx>
   */
  -#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;
diff --git a/drivers/gpu/drm/vkms/vkms_composer.c b/drivers/gpu/drm/vkms/vkms_composer.c
index 9e8204be9a14..c6a1036bf2ea 100644
--- a/drivers/gpu/drm/vkms/vkms_composer.c
+++ b/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;
diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h
index 9496fdc900b8..91e63b12f60f 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.h
+++ b/drivers/gpu/drm/vkms/vkms_drv.h
@@ -23,14 +23,14 @@
  #define NUM_OVERLAY_PLANES 8
    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;
diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c
index 32409e15244b..d8eb674b49a6 100644
--- a/drivers/gpu/drm/vkms/vkms_plane.c
+++ b/drivers/gpu/drm/vkms/vkms_plane.c
@@ -1,6 +1,6 @@
  // 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>
diff --git a/drivers/gpu/drm/vkms/vkms_writeback.c b/drivers/gpu/drm/vkms/vkms_writeback.c
index 8694227f555f..af1604dfbbaf 100644
--- a/drivers/gpu/drm/vkms/vkms_writeback.c
+++ b/drivers/gpu/drm/vkms/vkms_writeback.c
@@ -1,6 +1,6 @@
  // 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>
diff --git a/drivers/gpu/drm/xen/xen_drm_front_gem.c b/drivers/gpu/drm/xen/xen_drm_front_gem.c
index dd358ba2bf8e..5a5bf4e5b717 100644
--- a/drivers/gpu/drm/xen/xen_drm_front_gem.c
+++ b/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);
  }
diff --git a/drivers/gpu/drm/xen/xen_drm_front_gem.h b/drivers/gpu/drm/xen/xen_drm_front_gem.h
index eaea470f7001..a718a1f382a3 100644
--- a/drivers/gpu/drm/xen/xen_drm_front_gem.h
+++ b/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 */
diff --git a/drivers/media/common/videobuf2/videobuf2-dma-contig.c b/drivers/media/common/videobuf2/videobuf2-dma-contig.c
index 556e42ba66e5..f274f48aefeb 100644
--- a/drivers/media/common/videobuf2/videobuf2-dma-contig.c
+++ b/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");
diff --git a/drivers/media/common/videobuf2/videobuf2-dma-sg.c b/drivers/media/common/videobuf2/videobuf2-dma-sg.c
index 90acafd9a290..f8a21c560ad2 100644
--- a/drivers/media/common/videobuf2/videobuf2-dma-sg.c
+++ b/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");
diff --git a/drivers/media/common/videobuf2/videobuf2-vmalloc.c b/drivers/media/common/videobuf2/videobuf2-vmalloc.c
index 0bbfea66554f..948152f1596b 100644
--- a/drivers/media/common/videobuf2/videobuf2-vmalloc.c
+++ b/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);
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 4ccbf43e6bfa..5c0503655212 100644
--- a/drivers/misc/fastrpc.c
+++ b/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;
  }
diff --git a/include/drm/drm_cache.h b/include/drm/drm_cache.h
index cc9de1632dd3..22deb216b59c 100644
--- a/include/drm/drm_cache.h
+++ b/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
diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h
index f07f2fb02e75..4fc8018eddda 100644
--- a/include/drm/drm_client.h
+++ b/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);
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index 35e7f44c2a75..e2941cee14b6 100644
--- a/include/drm/drm_gem.h
+++ b/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:
diff --git a/include/drm/drm_gem_atomic_helper.h b/include/drm/drm_gem_atomic_helper.h
index 0b1e2dd2ac3f..6e3319e9001a 100644
--- a/include/drm/drm_gem_atomic_helper.h
+++ b/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];
  };
    /**
diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h
index adb507a9dbf0..fbda4ce5d5fb 100644
--- a/include/drm/drm_gem_cma_helper.h
+++ b/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);
  diff --git a/include/drm/drm_gem_framebuffer_helper.h b/include/drm/drm_gem_framebuffer_helper.h
index 905727719ead..1091e4fa08cb 100644
--- a/include/drm/drm_gem_framebuffer_helper.h
+++ b/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);   diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h
index 311d66c9cf4b..68347b63fc71 100644
--- a/include/drm/drm_gem_shmem_helper.h
+++ b/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);
  diff --git a/include/drm/drm_gem_ttm_helper.h b/include/drm/drm_gem_ttm_helper.h
index 78040f6cc6f3..4c003b4f173e 100644
--- a/include/drm/drm_gem_ttm_helper.h
+++ b/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);
  diff --git a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h
index b4ce27a72773..c083a1d71cf4 100644
--- a/include/drm/drm_gem_vram_helper.h
+++ b/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,
diff --git a/include/drm/drm_prime.h b/include/drm/drm_prime.h
index 54f2c58305d2..2a1d01e5b56b 100644
--- a/include/drm/drm_prime.h
+++ b/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);
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index c17b2df9178b..155b19ee12fb 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/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.
diff --git a/include/drm/ttm/ttm_kmap_iter.h b/include/drm/ttm/ttm_kmap_iter.h
index 8bb00fd39d6c..cc5c09a211b4 100644
--- a/include/drm/ttm/ttm_kmap_iter.h
+++ b/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;
  };
  diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h
index 69eea9d6399b..4fd727b52da1 100644
--- a/include/drm/ttm/ttm_resource.h
+++ b/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;
@@ -210,7 +210,7 @@ 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;
  };
  diff --git a/include/linux/dma-buf-map.h b/include/linux/dma-buf-map.h
deleted file mode 100644
index 19fa0b5ae5ec..000000000000
--- a/include/linux/dma-buf-map.h
+++ /dev/null
@@ -1,266 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Pointer to dma-buf-mapped memory, plus helpers.
- */
-
-#ifndef __DMA_BUF_MAP_H__
-#define __DMA_BUF_MAP_H__
-
-#include <linux/io.h>
-#include <linux/string.h>
-
-/**
- * DOC: overview
- *
- * Calling dma-buf's vmap operation returns a pointer to the buffer's memory. - * Depending on the location of the buffer, users may have to access it with - * I/O operations or memory load/store operations. For example, copying to - * system memory could be done with memcpy(), copying to I/O memory would be
- * done with memcpy_toio().
- *
- * .. code-block:: c
- *
- *    void *vaddr = ...; // pointer to system memory
- *    memcpy(vaddr, src, len);
- *
- *    void *vaddr_iomem = ...; // pointer to I/O memory
- *    memcpy_toio(vaddr, _iomem, src, len);
- *
- * When using dma-buf's vmap operation, the returned pointer is encoded as
- * :c:type:`struct dma_buf_map <dma_buf_map>`.
- * :c:type:`struct dma_buf_map <dma_buf_map>` stores the buffer's address in
- * system or I/O memory and a flag that signals the required method of
- * accessing the buffer. Use the returned instance and the helper functions
- * to access the buffer's memory in the correct way.
- *
- * The type :c:type:`struct dma_buf_map <dma_buf_map>` and its helpers are - * actually independent from the dma-buf infrastructure. When sharing buffers - * among devices, drivers have to know the location of the memory to access - * the buffers in a safe way. :c:type:`struct dma_buf_map <dma_buf_map>`
- * solves this problem for dma-buf and its users. If other drivers or
- * sub-systems require similar functionality, the type could be generalized
- * and moved to a more prominent header file.
- *
- * Open-coding access to :c:type:`struct dma_buf_map <dma_buf_map>` is
- * considered bad style. Rather then accessing its fields directly, use one - * of the provided helper functions, or implement your own. For example, - * instances of :c:type:`struct dma_buf_map <dma_buf_map>` can be initialized
- * statically with DMA_BUF_MAP_INIT_VADDR(), or at runtime with
- * dma_buf_map_set_vaddr(). These helpers will set an address in system memory.
- *
- * .. code-block:: c
- *
- *    struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(0xdeadbeaf);
- *
- *    dma_buf_map_set_vaddr(&map, 0xdeadbeaf);
- *
- * To set an address in I/O memory, use dma_buf_map_set_vaddr_iomem().
- *
- * .. code-block:: c
- *
- *    dma_buf_map_set_vaddr_iomem(&map, 0xdeadbeaf);
- *
- * Instances of struct dma_buf_map do not have to be cleaned up, but
- * can be cleared to NULL with dma_buf_map_clear(). Cleared mappings
- * always refer to system memory.
- *
- * .. code-block:: c
- *
- *    dma_buf_map_clear(&map);
- *
- * Test if a mapping is valid with either dma_buf_map_is_set() or
- * dma_buf_map_is_null().
- *
- * .. code-block:: c
- *
- *    if (dma_buf_map_is_set(&map) != dma_buf_map_is_null(&map))
- *        // always true
- *
- * Instances of :c:type:`struct dma_buf_map <dma_buf_map>` can be compared - * for equality with dma_buf_map_is_equal(). Mappings the point to different - * memory spaces, system or I/O, are never equal. That's even true if both - * spaces are located in the same address space, both mappings contain the
- * same address value, or both mappings refer to NULL.
- *
- * .. code-block:: c
- *
- *    struct dma_buf_map sys_map; // refers to system memory
- *    struct dma_buf_map io_map; // refers to I/O memory
- *
- *    if (dma_buf_map_is_equal(&sys_map, &io_map))
- *        // always false
- *
- * A set up instance of struct dma_buf_map can be used to access or manipulate - * the buffer memory. Depending on the location of the memory, the provided - * helpers will pick the correct operations. Data can be copied into the memory
- * with dma_buf_map_memcpy_to(). The address can be manipulated with
- * dma_buf_map_incr().
- *
- * .. code-block:: c
- *
- *    const void *src = ...; // source buffer
- *    size_t len = ...; // length of src
- *
- *    dma_buf_map_memcpy_to(&map, src, len);
- *    dma_buf_map_incr(&map, len); // go to first byte after the memcpy
- */
-
-/**
- * struct dma_buf_map - Pointer to vmap'ed dma-buf memory.
- * @vaddr_iomem:    The buffer's address if in I/O memory
- * @vaddr:        The buffer's address if in system memory
- * @is_iomem:        True if the dma-buf memory is located in I/O
- *            memory, or false otherwise.
- */
-struct dma_buf_map {
-    union {
-        void __iomem *vaddr_iomem;
-        void *vaddr;
-    };
-    bool is_iomem;
-};
-
-/**
- * DMA_BUF_MAP_INIT_VADDR - Initializes struct dma_buf_map to an address in system memory
- * @vaddr_:    A system-memory address
- */
-#define DMA_BUF_MAP_INIT_VADDR(vaddr_) \
-    { \
-        .vaddr = (vaddr_), \
-        .is_iomem = false, \
-    }
-
-/**
- * dma_buf_map_set_vaddr - Sets a dma-buf mapping structure to an address in system memory
- * @map:    The dma-buf mapping structure
- * @vaddr:    A system-memory address
- *
- * Sets the address and clears the I/O-memory flag.
- */
-static inline void dma_buf_map_set_vaddr(struct dma_buf_map *map, void *vaddr)
-{
-    map->vaddr = vaddr;
-    map->is_iomem = false;
-}
-
-/**
- * dma_buf_map_set_vaddr_iomem - Sets a dma-buf mapping structure to an address in I/O memory
- * @map:        The dma-buf mapping structure
- * @vaddr_iomem:    An I/O-memory address
- *
- * Sets the address and the I/O-memory flag.
- */
-static inline void dma_buf_map_set_vaddr_iomem(struct dma_buf_map *map,
-                           void __iomem *vaddr_iomem)
-{
-    map->vaddr_iomem = vaddr_iomem;
-    map->is_iomem = true;
-}
-
-/**
- * dma_buf_map_is_equal - Compares two dma-buf mapping structures for equality
- * @lhs:    The dma-buf mapping structure
- * @rhs:    A dma-buf mapping structure to compare with
- *
- * Two dma-buf mapping structures are equal if they both refer to the same type of memory
- * and to the same address within that memory.
- *
- * Returns:
- * True is both structures are equal, or false otherwise.
- */
-static inline bool dma_buf_map_is_equal(const struct dma_buf_map *lhs,
-                    const struct dma_buf_map *rhs)
-{
-    if (lhs->is_iomem != rhs->is_iomem)
-        return false;
-    else if (lhs->is_iomem)
-        return lhs->vaddr_iomem == rhs->vaddr_iomem;
-    else
-        return lhs->vaddr == rhs->vaddr;
-}
-
-/**
- * dma_buf_map_is_null - Tests for a dma-buf mapping to be NULL
- * @map:    The dma-buf mapping structure
- *
- * Depending on the state of struct dma_buf_map.is_iomem, tests if the
- * mapping is NULL.
- *
- * Returns:
- * True if the mapping is NULL, or false otherwise.
- */
-static inline bool dma_buf_map_is_null(const struct dma_buf_map *map)
-{
-    if (map->is_iomem)
-        return !map->vaddr_iomem;
-    return !map->vaddr;
-}
-
-/**
- * dma_buf_map_is_set - Tests is the dma-buf mapping has been set
- * @map:    The dma-buf mapping structure
- *
- * Depending on the state of struct dma_buf_map.is_iomem, tests if the
- * mapping has been set.
- *
- * Returns:
- * True if the mapping is been set, or false otherwise.
- */
-static inline bool dma_buf_map_is_set(const struct dma_buf_map *map)
-{
-    return !dma_buf_map_is_null(map);
-}
-
-/**
- * dma_buf_map_clear - Clears a dma-buf mapping structure
- * @map:    The dma-buf mapping structure
- *
- * Clears all fields to zero; including struct dma_buf_map.is_iomem. So
- * mapping structures that were set to point to I/O memory are reset for
- * system memory. Pointers are cleared to NULL. This is the default.
- */
-static inline void dma_buf_map_clear(struct dma_buf_map *map)
-{
-    if (map->is_iomem) {
-        map->vaddr_iomem = NULL;
-        map->is_iomem = false;
-    } else {
-        map->vaddr = NULL;
-    }
-}
-
-/**
- * dma_buf_map_memcpy_to - Memcpy into dma-buf mapping
- * @dst:    The dma-buf mapping structure
- * @src:    The source buffer
- * @len:    The number of byte in src
- *
- * Copies data into a dma-buf mapping. The source buffer is in system
- * memory. Depending on the buffer's location, the helper picks the correct
- * method of accessing the memory.
- */
-static inline void dma_buf_map_memcpy_to(struct dma_buf_map *dst, const void *src, size_t len)
-{
-    if (dst->is_iomem)
-        memcpy_toio(dst->vaddr_iomem, src, len);
-    else
-        memcpy(dst->vaddr, src, len);
-}
-
-/**
- * dma_buf_map_incr - Increments the address stored in a dma-buf mapping
- * @map:    The dma-buf mapping structure
- * @incr:    The number of bytes to increment
- *
- * Increments the address stored in a dma-buf mapping. Depending on the
- * buffer's location, the correct value will be updated.
- */
-static inline void dma_buf_map_incr(struct dma_buf_map *map, size_t incr)
-{
-    if (map->is_iomem)
-        map->vaddr_iomem += incr;
-    else
-        map->vaddr += incr;
-}
-
-#endif /* __DMA_BUF_MAP_H__ */
diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h
index 7ab50076e7a6..2097760e8e95 100644
--- a/include/linux/dma-buf.h
+++ b/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__ */
diff --git a/include/linux/iosys-map.h b/include/linux/iosys-map.h
new file mode 100644
index 000000000000..f4186f91caa6
--- /dev/null
+++ b/include/linux/iosys-map.h
@@ -0,0 +1,257 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Pointer abstraction for IO/system memory
+ */
+
+#ifndef __IOSYS_MAP_H__
+#define __IOSYS_MAP_H__
+
+#include <linux/io.h>
+#include <linux/string.h>
+
+/**
+ * DOC: overview
+ *
+ * When accessing a memory region, depending on its location, users may have to + * access it with I/O operations or memory load/store operations. For example, + * copying to system memory could be done with memcpy(), copying to I/O memory
+ * would be done with memcpy_toio().
+ *
+ * .. code-block:: c
+ *
+ *    void *vaddr = ...; // pointer to system memory
+ *    memcpy(vaddr, src, len);
+ *
+ *    void *vaddr_iomem = ...; // pointer to I/O memory
+ *    memcpy_toio(vaddr, _iomem, src, len);
+ *
+ * The user of such pointer may not have information about the mapping of that + * region or may want to have a single code path to handle operations on that
+ * buffer, regardless if it's located in system or IO memory. The type
+ * :c:type:`struct iosys_map <iosys_map>` and its helpers abstract that so the + * buffer can be passed around to other drivers or have separate duties inside
+ * the same driver for allocation, read and write operations.
+ *
+ * Open-coding access to :c:type:`struct iosys_map <iosys_map>` is considered + * bad style. Rather then accessing its fields directly, use one of the provided
+ * helper functions, or implement your own. For example, instances of
+ * :c:type:`struct iosys_map <iosys_map>` can be initialized statically with + * IOSYS_MAP_INIT_VADDR(), or at runtime with iosys_map_set_vaddr(). These
+ * helpers will set an address in system memory.
+ *
+ * .. code-block:: c
+ *
+ *    struct iosys_map map = IOSYS_MAP_INIT_VADDR(0xdeadbeaf);
+ *
+ *    iosys_map_set_vaddr(&map, 0xdeadbeaf);
+ *
+ * To set an address in I/O memory, use iosys_map_set_vaddr_iomem().
+ *
+ * .. code-block:: c
+ *
+ *    iosys_map_set_vaddr_iomem(&map, 0xdeadbeaf);
+ *
+ * Instances of struct iosys_map do not have to be cleaned up, but
+ * can be cleared to NULL with iosys_map_clear(). Cleared mappings
+ * always refer to system memory.
+ *
+ * .. code-block:: c
+ *
+ *    iosys_map_clear(&map);
+ *
+ * Test if a mapping is valid with either iosys_map_is_set() or
+ * iosys_map_is_null().
+ *
+ * .. code-block:: c
+ *
+ *    if (iosys_map_is_set(&map) != iosys_map_is_null(&map))
+ *        // always true
+ *
+ * Instances of :c:type:`struct iosys_map <iosys_map>` can be compared for + * equality with iosys_map_is_equal(). Mappings that point to different memory + * spaces, system or I/O, are never equal. That's even true if both spaces are + * located in the same address space, both mappings contain the same address
+ * value, or both mappings refer to NULL.
+ *
+ * .. code-block:: c
+ *
+ *    struct iosys_map sys_map; // refers to system memory
+ *    struct iosys_map io_map; // refers to I/O memory
+ *
+ *    if (iosys_map_is_equal(&sys_map, &io_map))
+ *        // always false
+ *
+ * A set up instance of struct iosys_map can be used to access or manipulate the + * buffer memory. Depending on the location of the memory, the provided helpers + * will pick the correct operations. Data can be copied into the memory with + * iosys_map_memcpy_to(). The address can be manipulated with iosys_map_incr().
+ *
+ * .. code-block:: c
+ *
+ *    const void *src = ...; // source buffer
+ *    size_t len = ...; // length of src
+ *
+ *    iosys_map_memcpy_to(&map, src, len);
+ *    iosys_map_incr(&map, len); // go to first byte after the memcpy
+ */
+
+/**
+ * struct iosys_map - Pointer to IO/system memory
+ * @vaddr_iomem:    The buffer's address if in I/O memory
+ * @vaddr:        The buffer's address if in system memory
+ * @is_iomem:        True if the buffer is located in I/O memory, or false
+ *            otherwise.
+ */
+struct iosys_map {
+    union {
+        void __iomem *vaddr_iomem;
+        void *vaddr;
+    };
+    bool is_iomem;
+};
+
+/**
+ * IOSYS_MAP_INIT_VADDR - Initializes struct iosys_map to an address in system memory
+ * @vaddr_:    A system-memory address
+ */
+#define IOSYS_MAP_INIT_VADDR(vaddr_)    \
+    {                \
+        .vaddr = (vaddr_),    \
+        .is_iomem = false,    \
+    }
+
+/**
+ * iosys_map_set_vaddr - Sets a iosys mapping structure to an address in system memory
+ * @map:    The iosys_map structure
+ * @vaddr:    A system-memory address
+ *
+ * Sets the address and clears the I/O-memory flag.
+ */
+static inline void iosys_map_set_vaddr(struct iosys_map *map, void *vaddr)
+{
+    map->vaddr = vaddr;
+    map->is_iomem = false;
+}
+
+/**
+ * iosys_map_set_vaddr_iomem - Sets a iosys mapping structure to an address in I/O memory
+ * @map:        The iosys_map structure
+ * @vaddr_iomem:    An I/O-memory address
+ *
+ * Sets the address and the I/O-memory flag.
+ */
+static inline void iosys_map_set_vaddr_iomem(struct iosys_map *map,
+                         void __iomem *vaddr_iomem)
+{
+    map->vaddr_iomem = vaddr_iomem;
+    map->is_iomem = true;
+}
+
+/**
+ * iosys_map_is_equal - Compares two iosys mapping structures for equality
+ * @lhs:    The iosys_map structure
+ * @rhs:    A iosys_map structure to compare with
+ *
+ * Two iosys mapping structures are equal if they both refer to the same type of memory
+ * and to the same address within that memory.
+ *
+ * Returns:
+ * True is both structures are equal, or false otherwise.
+ */
+static inline bool iosys_map_is_equal(const struct iosys_map *lhs,
+                      const struct iosys_map *rhs)
+{
+    if (lhs->is_iomem != rhs->is_iomem)
+        return false;
+    else if (lhs->is_iomem)
+        return lhs->vaddr_iomem == rhs->vaddr_iomem;
+    else
+        return lhs->vaddr == rhs->vaddr;
+}
+
+/**
+ * iosys_map_is_null - Tests for a iosys mapping to be NULL
+ * @map:    The iosys_map structure
+ *
+ * Depending on the state of struct iosys_map.is_iomem, tests if the
+ * mapping is NULL.
+ *
+ * Returns:
+ * True if the mapping is NULL, or false otherwise.
+ */
+static inline bool iosys_map_is_null(const struct iosys_map *map)
+{
+    if (map->is_iomem)
+        return !map->vaddr_iomem;
+    return !map->vaddr;
+}
+
+/**
+ * iosys_map_is_set - Tests if the iosys mapping has been set
+ * @map:    The iosys_map structure
+ *
+ * Depending on the state of struct iosys_map.is_iomem, tests if the
+ * mapping has been set.
+ *
+ * Returns:
+ * True if the mapping is been set, or false otherwise.
+ */
+static inline bool iosys_map_is_set(const struct iosys_map *map)
+{
+    return !iosys_map_is_null(map);
+}
+
+/**
+ * iosys_map_clear - Clears a iosys mapping structure
+ * @map:    The iosys_map structure
+ *
+ * Clears all fields to zero, including struct iosys_map.is_iomem, so
+ * mapping structures that were set to point to I/O memory are reset for
+ * system memory. Pointers are cleared to NULL. This is the default.
+ */
+static inline void iosys_map_clear(struct iosys_map *map)
+{
+    if (map->is_iomem) {
+        map->vaddr_iomem = NULL;
+        map->is_iomem = false;
+    } else {
+        map->vaddr = NULL;
+    }
+}
+
+/**
+ * iosys_map_memcpy_to - Memcpy into iosys mapping
+ * @dst:    The iosys_map structure
+ * @src:    The source buffer
+ * @len:    The number of byte in src
+ *
+ * Copies data into a iosys mapping. The source buffer is in system
+ * memory. Depending on the buffer's location, the helper picks the correct
+ * method of accessing the memory.
+ */
+static inline void iosys_map_memcpy_to(struct iosys_map *dst, const void *src,
+                       size_t len)
+{
+    if (dst->is_iomem)
+        memcpy_toio(dst->vaddr_iomem, src, len);
+    else
+        memcpy(dst->vaddr, src, len);
+}
+
+/**
+ * iosys_map_incr - Increments the address stored in a iosys mapping
+ * @map:    The iosys_map structure
+ * @incr:    The number of bytes to increment
+ *
+ * Increments the address stored in a iosys mapping. Depending on the
+ * buffer's location, the correct value will be updated.
+ */
+static inline void iosys_map_incr(struct iosys_map *map, size_t incr)
+{
+    if (map->is_iomem)
+        map->vaddr_iomem += incr;
+    else
+        map->vaddr += incr;
+}
+
+#endif /* __IOSYS_MAP_H__ */





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