From a85955568939e20e573cf42095d90c8476c9cec1 Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann Date: Tue, 3 Nov 2020 10:30:13 +0100 Subject: drm/gem: Store client buffer mappings as struct dma_buf_map Kernel DRM clients now store their framebuffer address in an instance of struct dma_buf_map. Depending on the buffer's location, the address refers to system or I/O memory. Callers of drm_client_buffer_vmap() receive a copy of the value in the call's supplied arguments. It can be accessed and modified with dma_buf_map interfaces. v6: * don't call page_to_phys() on framebuffers in I/O memory; warn instead (Daniel) Signed-off-by: Thomas Zimmermann Reviewed-by: Daniel Vetter Tested-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20201103093015.1063-9-tzimmermann@suse.de --- include/drm/drm_client.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include/drm') diff --git a/include/drm/drm_client.h b/include/drm/drm_client.h index 7aaea665bfc2..f07f2fb02e75 100644 --- a/include/drm/drm_client.h +++ b/include/drm/drm_client.h @@ -3,6 +3,7 @@ #ifndef _DRM_CLIENT_H_ #define _DRM_CLIENT_H_ +#include #include #include #include @@ -141,9 +142,9 @@ struct drm_client_buffer { struct drm_gem_object *gem; /** - * @vaddr: Virtual address for the buffer + * @map: Virtual address for the buffer */ - void *vaddr; + struct dma_buf_map map; /** * @fb: DRM framebuffer @@ -155,7 +156,7 @@ 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); -void *drm_client_buffer_vmap(struct drm_client_buffer *buffer); +int drm_client_buffer_vmap(struct drm_client_buffer *buffer, struct dma_buf_map *map); void drm_client_buffer_vunmap(struct drm_client_buffer *buffer); int drm_client_modeset_create(struct drm_client_dev *client); -- cgit