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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/msm/msm_gem_prime.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem_prime.c')
-rw-r--r-- | drivers/gpu/drm/msm/msm_gem_prime.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem_prime.c b/drivers/gpu/drm/msm/msm_gem_prime.c new file mode 100644 index 000000000..c1d91863d --- /dev/null +++ b/drivers/gpu/drm/msm/msm_gem_prime.c @@ -0,0 +1,74 @@ +// 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" + +int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) +{ + int ret; + + /* Ensure the mmap offset is initialized. We lazily initialize it, + * so if it has not been first mmap'd directly as a GEM object, the + * mmap offset will not be already initialized. + */ + ret = drm_gem_create_mmap_offset(obj); + if (ret) + return ret; + + return drm_gem_prime_mmap(obj, vma); +} + +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(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(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) +{ + if (!obj->import_attach) + msm_gem_pin_pages(obj); + return 0; +} + +void msm_gem_prime_unpin(struct drm_gem_object *obj) +{ + if (!obj->import_attach) + msm_gem_unpin_pages(obj); +} |