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path: root/drivers/gpu/drm/udl/udl_gem.c
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Diffstat (limited to 'drivers/gpu/drm/udl/udl_gem.c')
-rw-r--r--drivers/gpu/drm/udl/udl_gem.c106
1 files changed, 0 insertions, 106 deletions
diff --git a/drivers/gpu/drm/udl/udl_gem.c b/drivers/gpu/drm/udl/udl_gem.c
deleted file mode 100644
index b6e26f98aa0a..000000000000
--- a/drivers/gpu/drm/udl/udl_gem.c
+++ /dev/null
@@ -1,106 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2012 Red Hat
- */
-
-#include <linux/dma-buf.h>
-#include <linux/vmalloc.h>
-
-#include <drm/drm_drv.h>
-#include <drm/drm_gem_shmem_helper.h>
-#include <drm/drm_mode.h>
-#include <drm/drm_prime.h>
-
-#include "udl_drv.h"
-
-/*
- * GEM object funcs
- */
-
-static int udl_gem_object_mmap(struct drm_gem_object *obj,
- struct vm_area_struct *vma)
-{
- int ret;
-
- ret = drm_gem_shmem_mmap(obj, vma);
- if (ret)
- return ret;
-
- vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
- if (obj->import_attach)
- vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
- vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot);
-
- return 0;
-}
-
-static void *udl_gem_object_vmap(struct drm_gem_object *obj)
-{
- struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj);
- int ret;
-
- ret = mutex_lock_interruptible(&shmem->vmap_lock);
- if (ret)
- return ERR_PTR(ret);
-
- if (shmem->vmap_use_count++ > 0)
- goto out;
-
- ret = drm_gem_shmem_get_pages(shmem);
- if (ret)
- goto err_zero_use;
-
- if (obj->import_attach)
- shmem->vaddr = dma_buf_vmap(obj->import_attach->dmabuf);
- else
- shmem->vaddr = vmap(shmem->pages, obj->size >> PAGE_SHIFT,
- VM_MAP, PAGE_KERNEL);
-
- if (!shmem->vaddr) {
- DRM_DEBUG_KMS("Failed to vmap pages\n");
- ret = -ENOMEM;
- goto err_put_pages;
- }
-
-out:
- mutex_unlock(&shmem->vmap_lock);
- return shmem->vaddr;
-
-err_put_pages:
- drm_gem_shmem_put_pages(shmem);
-err_zero_use:
- shmem->vmap_use_count = 0;
- mutex_unlock(&shmem->vmap_lock);
- return ERR_PTR(ret);
-}
-
-static const struct drm_gem_object_funcs udl_gem_object_funcs = {
- .free = drm_gem_shmem_free_object,
- .print_info = drm_gem_shmem_print_info,
- .pin = drm_gem_shmem_pin,
- .unpin = drm_gem_shmem_unpin,
- .get_sg_table = drm_gem_shmem_get_sg_table,
- .vmap = udl_gem_object_vmap,
- .vunmap = drm_gem_shmem_vunmap,
- .mmap = udl_gem_object_mmap,
-};
-
-/*
- * Helpers for struct drm_driver
- */
-
-struct drm_gem_object *udl_driver_gem_create_object(struct drm_device *dev,
- size_t size)
-{
- struct drm_gem_shmem_object *shmem;
- struct drm_gem_object *obj;
-
- shmem = kzalloc(sizeof(*shmem), GFP_KERNEL);
- if (!shmem)
- return NULL;
-
- obj = &shmem->base;
- obj->funcs = &udl_gem_object_funcs;
-
- return obj;
-}