mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-09-04 20:19:47 +08:00
55eba86e11
Instead of testing import_attach for imported GEM buffers, invoke drm_gem_is_imported() to do the test. The helper tests the dma_buf itself while import_attach is just an artifact of the import. Prepares to make import_attach optional. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Rob Clark <robdclark@gmail.com> Cc: Abhinav Kumar <quic_abhinavk@quicinc.com> Cc: Dmitry Baryshkov <lumag@kernel.org> Cc: Sean Paul <sean@poorly.run> Cc: Marijn Suijten <marijn.suijten@somainline.org> Cc: linux-arm-msm@vger.kernel.org Cc: freedreno@lists.freedesktop.org Acked-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/r/20250317131923.238374-7-tzimmermann@suse.de
70 lines
1.4 KiB
C
70 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (C) 2013 Red Hat
|
|
* Author: Rob Clark <robdclark@gmail.com>
|
|
*/
|
|
|
|
#include <linux/dma-buf.h>
|
|
|
|
#include <drm/drm_prime.h>
|
|
|
|
#include "msm_drv.h"
|
|
#include "msm_gem.h"
|
|
|
|
struct sg_table *msm_gem_prime_get_sg_table(struct drm_gem_object *obj)
|
|
{
|
|
struct msm_gem_object *msm_obj = to_msm_bo(obj);
|
|
int npages = obj->size >> PAGE_SHIFT;
|
|
|
|
if (WARN_ON(!msm_obj->pages)) /* should have already pinned! */
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
return drm_prime_pages_to_sg(obj->dev, msm_obj->pages, npages);
|
|
}
|
|
|
|
int msm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map)
|
|
{
|
|
void *vaddr;
|
|
|
|
vaddr = msm_gem_get_vaddr_locked(obj);
|
|
if (IS_ERR(vaddr))
|
|
return PTR_ERR(vaddr);
|
|
iosys_map_set_vaddr(map, vaddr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void msm_gem_prime_vunmap(struct drm_gem_object *obj, struct iosys_map *map)
|
|
{
|
|
msm_gem_put_vaddr_locked(obj);
|
|
}
|
|
|
|
struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
|
|
struct dma_buf_attachment *attach, struct sg_table *sg)
|
|
{
|
|
return msm_gem_import(dev, attach->dmabuf, sg);
|
|
}
|
|
|
|
int msm_gem_prime_pin(struct drm_gem_object *obj)
|
|
{
|
|
struct page **pages;
|
|
int ret = 0;
|
|
|
|
if (drm_gem_is_imported(obj))
|
|
return 0;
|
|
|
|
pages = msm_gem_pin_pages_locked(obj);
|
|
if (IS_ERR(pages))
|
|
ret = PTR_ERR(pages);
|
|
|
|
return ret;
|
|
}
|
|
|
|
void msm_gem_prime_unpin(struct drm_gem_object *obj)
|
|
{
|
|
if (drm_gem_is_imported(obj))
|
|
return;
|
|
|
|
msm_gem_unpin_pages_locked(obj);
|
|
}
|