fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-22 21:48:09 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

winsys/radeon: allow mapping a user buffer

Browse source 
OpenGL requires this.

Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Marek Olšák 2015-02-10 16:41:53 +01:00
parent 8b587ee701
commit e8d727a2b6
3 changed files with 8 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
src/gallium/winsys/radeon/drm/radeon_drm_bo.c
View file

@ -345,6 +345,10 @@ void *radeon_bo_do_map(struct radeon_bo *bo)
struct drm_radeon_gem_mmap args = {0};
void *ptr;
/* If the buffer is created from user memory, return the user pointer. */
if (bo->user_ptr)
return bo->user_ptr;
/* Return the pointer if it's already mapped. */
if (bo->ptr)
return bo->ptr;
@ -900,6 +904,7 @@ static struct pb_buffer *radeon_winsys_bo_from_ptr(struct radeon_winsys *rws,
bo->base.vtbl = &radeon_bo_vtbl;
bo->mgr = mgr;
bo->rws = mgr->rws;
bo->user_ptr = pointer;
bo->va = 0;
bo->initial_domain = RADEON_DOMAIN_GTT;
pipe_mutex_init(bo->map_mutex);

1
src/gallium/winsys/radeon/drm/radeon_drm_bo.h
View file

@ -50,6 +50,7 @@ struct radeon_bo {
struct radeon_bomgr *mgr;
struct radeon_drm_winsys *rws;
void *user_ptr; /* from buffer_from_ptr */
void *ptr;
pipe_mutex map_mutex;

4
src/gallium/winsys/radeon/drm/radeon_winsys.h
View file

@ -394,8 +394,8 @@ struct radeon_winsys {
unsigned *stride);
/**
* Get a winsys buffer from a user pointer. The resulting buffer can't be
* mapped or exported. Both pointer and size must be page aligned.
* Get a winsys buffer from a user pointer. The resulting buffer can't
* be exported. Both pointer and size must be page aligned.
*
* \param ws The winsys this function is called from.
* \param pointer User pointer to turn into a buffer object.