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drm/cma-helper: Remove empty drm_gem_cma_prime_vunmap()

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The function drm_gem_cma_prime_vunmap() is empty. Remove it before
changing the interface to use struct drm_buf_map.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201103093015.1063-3-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2020-11-03 10:30:07 +01:00
parent 1086db71a1
commit 823efa9221
3 changed files with 0 additions and 19 deletions
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17
drivers/gpu/drm/drm_gem_cma_helper.c
View File

@ -537,23 +537,6 @@ void *drm_gem_cma_prime_vmap(struct drm_gem_object *obj)
}
EXPORT_SYMBOL_GPL(drm_gem_cma_prime_vmap);
/**
* drm_gem_cma_prime_vunmap - unmap a CMA GEM object from the kernel's virtual
* address space
* @obj: GEM object
* @vaddr: kernel virtual address where the CMA GEM object was mapped
*
* This function removes a buffer exported via DRM PRIME from the kernel's
* virtual address space. This is a no-op because CMA buffers cannot be
* unmapped from kernel space. Drivers using the CMA helpers should set this
* as their &drm_gem_object_funcs.vunmap callback.
*/
void drm_gem_cma_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
{
/* Nothing to do */
}
EXPORT_SYMBOL_GPL(drm_gem_cma_prime_vunmap);
static const struct drm_gem_object_funcs drm_gem_cma_default_funcs = {
.free = drm_gem_cma_free_object,
.print_info = drm_gem_cma_print_info,

1
drivers/gpu/drm/vc4/vc4_bo.c
View File

@ -387,7 +387,6 @@ static const struct drm_gem_object_funcs vc4_gem_object_funcs = {
.export = vc4_prime_export,
.get_sg_table = drm_gem_cma_prime_get_sg_table,
.vmap = vc4_prime_vmap,
.vunmap = drm_gem_cma_prime_vunmap,
.vm_ops = &vc4_vm_ops,
};

1
include/drm/drm_gem_cma_helper.h
View File

@ -104,7 +104,6 @@ drm_gem_cma_prime_import_sg_table(struct drm_device *dev,
int drm_gem_cma_prime_mmap(struct drm_gem_object *obj,
struct vm_area_struct *vma);
void *drm_gem_cma_prime_vmap(struct drm_gem_object *obj);
void drm_gem_cma_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
struct drm_gem_object *
drm_gem_cma_create_object_default_funcs(struct drm_device *dev, size_t size);