On Wed, Feb 02, 2022 at 11:20:16AM +0100, Thomas Zimmermann wrote:
Hi
Am 02.02.22 um 10:11 schrieb Lucas De Marchi:
diff --git a/Documentation/driver-api/dma-buf.rst
b/Documentation/driver-api/dma-buf.rst
index 2cd7db82d9fe..ea1e81894d7c 100644
--- a/Documentation/driver-api/dma-buf.rst
+++ b/Documentation/driver-api/dma-buf.rst
@@ -131,10 +131,10 @@ Kernel Functions and Structures Reference
Buffer Mapping Helpers
~~
-.. kernel-doc:: include/linux/dma-buf-map.h
+.. kernel-doc:: include/linux/iosys-map.h
:doc: overview
-.. kernel-doc:: include/linux/dma-buf-map.h
+.. kernel-doc:: include/linux/iosys-map.h
:internal:
Should we move this section to a better place than dma-buf.rst?
There's 'Bus-Independent Device Accesses' in
Documentation/driver-api/device-io.rst. It describes all the I/O
helpers and looks like a good fit.
Sounds like a good idea. I will include that in v3.
Cc'ing Jonathan and linux-doc, too.
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 , 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 , Christian König, Daniel
Vetter
diff --git a/MAINTAINERS b/MAINTAINERS
index d03ad8da1f36..112676f11792 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5675,7 +5675,6 @@ 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*
There's still include/linux/dma-buf.h that needs to be listed.
F: include/linux/dma-resv.h
K: \bdma_(?:buf|fence|resv)\b
@@ -9976,6 +9975,13 @@ F: include/linux/iova.h
F: include/linux/of_iommu.h
F: include/uapi/linux/iommu.h
+IOSYS-MAP HELPERS
+M: Thomas Zimmermann
+L: dri-devel@lists.freedesktop.org
+S: Maintained
+T: git git://anongit.freedesktop.org/drm/drm-misc
+F: include/linux/iosys-map.h
Makes sense.
I briefly looked through the rst of the code conversion. Looks good to
me. Thanks for squashing the patches into one.
thanks
Lucas De Marchi
Best regards
Thomas
+
IO_URING
M: Jens Axboe
R: Pavel Begunkov
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
