On 4/4/25 16:23, Thomas Zimmermann wrote:
> +int drm_client_buffer_vmap(struct drm_client_buffer *buffer,
> +struct iosys_map *map_copy)
> {
> struct drm_gem_object *gem = buffer->gem;
> struct iosys_map *map = &buffer->map;
> int ret;
>
> drm_gem_
On Fri, 4 Apr 2025 15:23:31 +0200
Thomas Zimmermann wrote:
> Pin and vmap are two distict operations. Do not mix them.
>
> The helper drm_client_buffer_vmap() maps the pages for fbdev-dma
> and fbdev-shmem. In both cases, the vmap operation ensures that
> the pages are available until the vunma
Pin and vmap are two distict operations. Do not mix them.
The helper drm_client_buffer_vmap() maps the pages for fbdev-dma
and fbdev-shmem. In both cases, the vmap operation ensures that
the pages are available until the vunmap happens. And as the pages
in DMA or SHMEM areas cannot be moved, there
