Not using these wrappers may make drivers unusable on certain platforms with
stricter rules for mapping I/O memory.
+Generalizing Access to System and I/O Memory
+============================================
+
+.. kernel-doc:: include/linux/iosys-map.h
+ :doc: overview
+
+.. kernel-doc:: include/linux/iosys-map.h
+ :internal:
+
Public Functions Provided
=========================
.. 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
-------------------
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
A number of callback functions in drm_fbdev_fb_ops could benefit from
being rewritten without dependencies on the fbdev module. Some of the
-helpers could further benefit from using struct dma_buf_map instead of
+helpers could further benefit from using struct iosys_map instead of
raw pointers.
Contact: Thomas Zimmermann <tzimmermann@suse.de>, Daniel Vetter
Level: Intermediate
-Use struct dma_buf_map throughout codebase
-------------------------------------------
+Use struct iosys_map throughout codebase
+----------------------------------------
-Pointers to shared device memory are stored in struct dma_buf_map. Each
+Pointers to shared device memory are stored in struct iosys_map. Each
instance knows whether it refers to system or I/O memory. Most of the DRM-wide
-interface have been converted to use struct dma_buf_map, but implementations
+interface have been converted to use struct iosys_map, but implementations
often still use raw pointers.
-The task is to use struct dma_buf_map where it makes sense.
+The task is to use struct iosys_map where it makes sense.
-* Memory managers should use struct dma_buf_map for dma-buf-imported buffers.
-* TTM might benefit from using struct dma_buf_map internally.
-* Framebuffer copying and blitting helpers should operate on struct dma_buf_map.
+* Memory managers should use struct iosys_map for dma-buf-imported buffers.
+* TTM might benefit from using struct iosys_map internally.
+* Framebuffer copying and blitting helpers should operate on struct iosys_map.
Contact: Thomas Zimmermann <tzimmermann@suse.de>, Christian König, Daniel Vetter
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
F: include/linux/of_iommu.h
F: include/uapi/linux/iommu.h
+IOSYS-MAP HELPERS
+M: Thomas Zimmermann <tzimmermann@suse.de>
+L: dri-devel@lists.freedesktop.org
+S: Maintained
+T: git git://anongit.freedesktop.org/drm/drm-misc
+F: include/linux/iosys-map.h
+
IO_URING
M: Jens Axboe <axboe@kernel.dk>
R: Pavel Begunkov <asml.silence@gmail.com>
*
* 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
*
* 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;
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))
* @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);
}
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;
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;
}
}
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;
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)
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;
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;
}
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;
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)
struct {
struct drm_gem_vram_object *gbo;
- struct dma_buf_map map;
+ struct iosys_map map;
u64 off;
} hwc[AST_DEFAULT_HWC_NUM];
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;
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;
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;
* 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>
}
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 {
* 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())) {
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());
* 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>
* 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;
/*
*/
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);
}
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];
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];
}
}
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;
/*
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",
#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>
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;
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);
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)
* 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;
}
{
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);
* @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.
*
* 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;
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]);
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]);
}
}
* 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;
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]);
}
}
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;
}
if (!shmem->vaddr)
ret = -ENOMEM;
else
- dma_buf_map_set_vaddr(map, shmem->vaddr);
+ iosys_map_set_vaddr(map, shmem->vaddr);
}
if (ret) {
* 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;
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;
* 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);
* 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);
* &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);
// 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>
*/
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);
}
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;
* 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;
}
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)
* 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;
* 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;
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,
* 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);
* @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);
struct dentry;
struct dma_buf;
-struct dma_buf_map;
+struct iosys_map;
struct drm_connector;
struct drm_crtc;
struct drm_framebuffer;
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);
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;
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;
*
* 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;
* 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;
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);
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;
}
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);
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);
{
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;
#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);
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,
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;
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);
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;
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;
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;
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;
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);
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#include <linux/mm.h>
+#include <linux/iosys-map.h>
#include <linux/sync_file.h>
#include <linux/pagemap.h>
#include <linux/shmem_fs.h>
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);
// SPDX-License-Identifier: GPL-2.0 OR MIT
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
#include <linux/kthread.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
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);
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;
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;
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
*/
#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>
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 */
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);
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);
}
// 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"
{
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;
{
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;
#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>
{
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;
{
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);
* 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>
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;
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;
* 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>
#include "qxl_dev.h"
-struct dma_buf_map;
+struct iosys_map;
#define DRIVER_AUTHOR "Dave Airlie"
/* 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;
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);
* Alon Levy
*/
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
#include <linux/io-mapping.h>
#include "qxl_drv.h"
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;
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;
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;
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);
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;
}
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);
* Jerome Glisse
*/
+#include <linux/iosys-map.h>
#include <linux/pci.h>
#include <drm/drm_device.h>
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);
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);
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,
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) {
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;
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)
{
}
* Copyright 1999-2001 Jeff Garzik <jgarzik@pobox.com>
*/
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
#include <linux/module.h>
#include <linux/pci.h>
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);
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,
struct drm_rect rect;
int frame;
int draw_status_timeout;
- struct dma_buf_map src_map;
+ struct iosys_map src_map;
} fb_update;
};
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);
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);
#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>
{
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 */
}
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;
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 = {
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);
}
* Authors: Christian König
*/
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
#include <linux/io-mapping.h>
#include <linux/scatterlist.h>
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 =
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);
}
*/
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 = {
}
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;
iter_io->needs_unmap = true;
memset(&iter_io->dmap, 0, sizeof(iter_io->dmap));
if (mem->bus.caching == ttm_write_combined)
- dma_buf_map_set_vaddr_iomem(&iter_io->dmap,
- ioremap_wc(mem->bus.offset,
- bus_size));
+ iosys_map_set_vaddr_iomem(&iter_io->dmap,
+ ioremap_wc(mem->bus.offset,
+ bus_size));
else if (mem->bus.caching == ttm_cached)
- dma_buf_map_set_vaddr(&iter_io->dmap,
- memremap(mem->bus.offset, bus_size,
- MEMREMAP_WB |
- MEMREMAP_WT |
- MEMREMAP_WC));
+ iosys_map_set_vaddr(&iter_io->dmap,
+ memremap(mem->bus.offset, bus_size,
+ MEMREMAP_WB |
+ MEMREMAP_WT |
+ MEMREMAP_WC));
/* If uncached requested or if mapping cached or wc failed */
- if (dma_buf_map_is_null(&iter_io->dmap))
- dma_buf_map_set_vaddr_iomem(&iter_io->dmap,
- ioremap(mem->bus.offset,
- bus_size));
+ if (iosys_map_is_null(&iter_io->dmap))
+ iosys_map_set_vaddr_iomem(&iter_io->dmap,
+ ioremap(mem->bus.offset,
+ bus_size));
- if (dma_buf_map_is_null(&iter_io->dmap)) {
+ if (iosys_map_is_null(&iter_io->dmap)) {
ret = -ENOMEM;
goto out_io_free;
}
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
}
static void ttm_kmap_iter_tt_map_local(struct ttm_kmap_iter *iter,
- struct dma_buf_map *dmap,
+ struct iosys_map *dmap,
pgoff_t i)
{
struct ttm_kmap_iter_tt *iter_tt =
container_of(iter, typeof(*iter_tt), base);
- dma_buf_map_set_vaddr(dmap, kmap_local_page_prot(iter_tt->tt->pages[i],
- iter_tt->prot));
+ iosys_map_set_vaddr(dmap, kmap_local_page_prot(iter_tt->tt->pages[i],
+ iter_tt->prot));
}
static void ttm_kmap_iter_tt_unmap_local(struct ttm_kmap_iter *iter,
- struct dma_buf_map *map)
+ struct iosys_map *map)
{
kunmap_local(map->vaddr);
}
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;
* Hans de Goede <hdegoede@redhat.com>
*/
-#include <linux/dma-buf-map.h>
+#include <linux/iosys-map.h>
#include <linux/export.h>
#include <drm/drm_atomic.h>
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;
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;
}
}
- 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;
#define YRES_MAX 8192
struct vkms_writeback_job {
- struct dma_buf_map map[DRM_FORMAT_MAX_PLANES];
- struct dma_buf_map data[DRM_FORMAT_MAX_PLANES];
+ struct iosys_map map[DRM_FORMAT_MAX_PLANES];
+ struct iosys_map data[DRM_FORMAT_MAX_PLANES];
};
struct vkms_composer {
struct drm_framebuffer fb;
struct drm_rect src, dst;
- struct dma_buf_map map[4];
+ struct iosys_map map[4];
unsigned int offset;
unsigned int pitch;
unsigned int cpp;
// 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>
// 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>
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;
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);
}
#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;
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 */
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;
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;
if (!vaddr)
return -EINVAL;
- dma_buf_map_set_vaddr(map, vaddr);
+ iosys_map_set_vaddr(map, vaddr);
return 0;
}
{
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");
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);
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;
}
{
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");
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;
}
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);
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;
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);
kfree(a);
}
-static int fastrpc_vmap(struct dma_buf *dmabuf, struct dma_buf_map *map)
+static int fastrpc_vmap(struct dma_buf *dmabuf, struct iosys_map *map)
{
struct fastrpc_buf *buf = dmabuf->priv;
- dma_buf_map_set_vaddr(map, buf->virt);
+ iosys_map_set_vaddr(map, buf->virt);
return 0;
}
#include <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);
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
#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>
/**
* @map: Virtual address for the buffer
*/
- struct dma_buf_map map;
+ struct iosys_map map;
/**
* @fb: DRM framebuffer
drm_client_framebuffer_create(struct drm_client_dev *client, u32 width, u32 height, u32 format);
void drm_client_framebuffer_delete(struct drm_client_buffer *buffer);
int drm_client_framebuffer_flush(struct drm_client_buffer *buffer, struct drm_rect *rect);
-int drm_client_buffer_vmap(struct drm_client_buffer *buffer, struct dma_buf_map *map);
+int drm_client_buffer_vmap(struct drm_client_buffer *buffer,
+ struct iosys_map *map);
void drm_client_buffer_vunmap(struct drm_client_buffer *buffer);
int drm_client_modeset_create(struct drm_client_dev *client);
#include <drm/drm_vma_manager.h>
-struct dma_buf_map;
+struct iosys_map;
struct drm_gem_object;
/**
*
* 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:
*
* 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:
#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>
* 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
* 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];
};
/**
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;
* 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);
#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>
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);
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);
* 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);
* This function wraps drm_gem_shmem_vunmap(). Drivers that employ the shmem helpers should
* use it as their &drm_gem_object_funcs.vunmap handler.
*/
-static inline void drm_gem_shmem_object_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map)
+static inline void drm_gem_shmem_object_vunmap(struct drm_gem_object *obj,
+ struct iosys_map *map)
{
struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
#include <drm/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)
void drm_gem_ttm_print_info(struct drm_printer *p, unsigned int indent,
const struct drm_gem_object *gem);
int drm_gem_ttm_vmap(struct drm_gem_object *gem,
- struct dma_buf_map *map);
+ struct iosys_map *map);
void drm_gem_ttm_vunmap(struct drm_gem_object *gem,
- struct dma_buf_map *map);
+ struct iosys_map *map);
int drm_gem_ttm_mmap(struct drm_gem_object *gem,
struct vm_area_struct *vma);
#include <drm/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;
*/
struct drm_gem_vram_object {
struct ttm_buffer_object bo;
- struct dma_buf_map map;
+ struct iosys_map map;
/**
* @vmap_use_count:
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,
struct dma_buf_export_info;
struct dma_buf;
struct dma_buf_attachment;
-struct dma_buf_map;
+struct iosys_map;
enum dma_data_direction;
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);
struct ttm_device;
-struct dma_buf_map;
+struct iosys_map;
struct drm_mm_node;
* 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
*
* Unmaps a kernel map set up by ttm_bo_vmap().
*/
-void ttm_bo_vunmap(struct ttm_buffer_object *bo, struct dma_buf_map *map);
+void ttm_bo_vunmap(struct ttm_buffer_object *bo, struct iosys_map *map);
/**
* ttm_bo_mmap_obj - mmap memory backed by a ttm buffer object.
#include <linux/types.h>
struct ttm_kmap_iter;
-struct dma_buf_map;
+struct iosys_map;
/**
* struct ttm_kmap_iter_ops - Ops structure for a struct
* kmap_local semantics.
* @res_iter: Pointer to the struct ttm_kmap_iter representing
* the resource.
- * @dmap: The struct dma_buf_map holding the virtual address after
+ * @dmap: The struct iosys_map holding the virtual address after
* the operation.
* @i: The location within the resource to map. PAGE_SIZE granularity.
*/
void (*map_local)(struct ttm_kmap_iter *res_iter,
- struct dma_buf_map *dmap, pgoff_t i);
+ struct iosys_map *dmap, pgoff_t i);
/**
* unmap_local() - Unmap a PAGE_SIZE part of the resource previously
* mapped using kmap_local.
* @res_iter: Pointer to the struct ttm_kmap_iter representing
* the resource.
- * @dmap: The struct dma_buf_map holding the virtual address after
+ * @dmap: The struct iosys_map holding the virtual address after
* the operation.
*/
void (*unmap_local)(struct ttm_kmap_iter *res_iter,
- struct dma_buf_map *dmap);
+ struct iosys_map *dmap);
bool maps_tt;
};
#include <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>
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;
*/
struct ttm_kmap_iter_linear_io {
struct ttm_kmap_iter base;
- struct dma_buf_map dmap;
+ struct iosys_map dmap;
bool needs_unmap;
};
+++ /dev/null
-/* 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__ */
#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>
*/
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);
};
/**
* @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:
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__ */
--- /dev/null
+/* 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__ */
projects / linux-platform-drivers-x86.git / commitdiff