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https://github.com/torvalds/linux
synced 2024-10-22 19:25:51 +00:00
drm/exynos: cleanup name of gem object for exynos_drm
Struct of gem object in exynos_drm driver is struct exynos_drm_gem_obj. It's too long and we can know its meaning of name without _obj postfix. We use several names to variable name of gem object for exynos_drm - exynos_gem_obj, gem_obj and obj. Especially "obj" name can cause misunderstanding with variable name "obj" of struct drm_gem_object. This will clean about name of gem object for exynos_drm as follows. s/struct exynos_drm_gem_obj/struct exynos_drm_gem s/exynos_gem_obj or gem_obj or obj/exynos_gem Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Joonyoung Shim
Inki Dae
parent
4d91a85598
commit
813fd67b57
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@ -32,15 +32,15 @@
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* exynos specific framebuffer structure.
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*
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* @fb: drm framebuffer obejct.
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* @exynos_gem_obj: array of exynos specific gem object containing a gem object.
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* @exynos_gem: array of exynos specific gem object containing a gem object.
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*/
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struct exynos_drm_fb {
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struct drm_framebuffer fb;
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struct exynos_drm_gem_obj *exynos_gem_obj[MAX_FB_BUFFER];
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struct drm_framebuffer fb;
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struct exynos_drm_gem *exynos_gem[MAX_FB_BUFFER];
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};
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static int check_fb_gem_memory_type(struct drm_device *drm_dev,
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struct exynos_drm_gem_obj *exynos_gem_obj)
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struct exynos_drm_gem *exynos_gem)
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{
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unsigned int flags;
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@ -51,7 +51,7 @@ static int check_fb_gem_memory_type(struct drm_device *drm_dev,
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if (is_drm_iommu_supported(drm_dev))
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return 0;
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flags = exynos_gem_obj->flags;
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flags = exynos_gem->flags;
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/*
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* without iommu support, not support physically non-continuous memory
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@ -75,13 +75,13 @@ static void exynos_drm_fb_destroy(struct drm_framebuffer *fb)
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drm_framebuffer_cleanup(fb);
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for (i = 0; i < ARRAY_SIZE(exynos_fb->exynos_gem_obj); i++) {
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for (i = 0; i < ARRAY_SIZE(exynos_fb->exynos_gem); i++) {
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struct drm_gem_object *obj;
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if (exynos_fb->exynos_gem_obj[i] == NULL)
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if (exynos_fb->exynos_gem[i] == NULL)
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continue;
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obj = &exynos_fb->exynos_gem_obj[i]->base;
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obj = &exynos_fb->exynos_gem[i]->base;
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drm_gem_object_unreference_unlocked(obj);
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}
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@ -96,7 +96,7 @@ static int exynos_drm_fb_create_handle(struct drm_framebuffer *fb,
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struct exynos_drm_fb *exynos_fb = to_exynos_fb(fb);
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return drm_gem_handle_create(file_priv,
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&exynos_fb->exynos_gem_obj[0]->base, handle);
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&exynos_fb->exynos_gem[0]->base, handle);
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}
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static int exynos_drm_fb_dirty(struct drm_framebuffer *fb,
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@ -118,7 +118,7 @@ static struct drm_framebuffer_funcs exynos_drm_fb_funcs = {
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struct drm_framebuffer *
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exynos_drm_framebuffer_init(struct drm_device *dev,
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struct drm_mode_fb_cmd2 *mode_cmd,
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struct exynos_drm_gem_obj **gem_obj,
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struct exynos_drm_gem **exynos_gem,
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int count)
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{
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struct exynos_drm_fb *exynos_fb;
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@ -130,11 +130,11 @@ exynos_drm_framebuffer_init(struct drm_device *dev,
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return ERR_PTR(-ENOMEM);
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for (i = 0; i < count; i++) {
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ret = check_fb_gem_memory_type(dev, gem_obj[i]);
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ret = check_fb_gem_memory_type(dev, exynos_gem[i]);
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if (ret < 0)
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goto err;
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exynos_fb->exynos_gem_obj[i] = gem_obj[i];
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exynos_fb->exynos_gem[i] = exynos_gem[i];
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}
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drm_helper_mode_fill_fb_struct(&exynos_fb->fb, mode_cmd);
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@ -156,7 +156,7 @@ static struct drm_framebuffer *
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exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
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struct drm_mode_fb_cmd2 *mode_cmd)
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{
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struct exynos_drm_gem_obj *gem_objs[MAX_FB_BUFFER];
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struct exynos_drm_gem *exynos_gem[MAX_FB_BUFFER];
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struct drm_gem_object *obj;
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struct drm_framebuffer *fb;
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int i;
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@ -171,10 +171,10 @@ exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
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goto err;
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}
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gem_objs[i] = to_exynos_gem_obj(obj);
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exynos_gem[i] = to_exynos_gem(obj);
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}
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fb = exynos_drm_framebuffer_init(dev, mode_cmd, gem_objs, i);
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fb = exynos_drm_framebuffer_init(dev, mode_cmd, exynos_gem, i);
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if (IS_ERR(fb)) {
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ret = PTR_ERR(fb);
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goto err;
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@ -184,27 +184,26 @@ exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
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err:
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while (i--)
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drm_gem_object_unreference_unlocked(&gem_objs[i]->base);
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drm_gem_object_unreference_unlocked(&exynos_gem[i]->base);
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return ERR_PTR(ret);
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}
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struct exynos_drm_gem_obj *exynos_drm_fb_gem_obj(struct drm_framebuffer *fb,
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int index)
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struct exynos_drm_gem *exynos_drm_fb_gem(struct drm_framebuffer *fb, int index)
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{
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struct exynos_drm_fb *exynos_fb = to_exynos_fb(fb);
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struct exynos_drm_gem_obj *obj;
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struct exynos_drm_gem *exynos_gem;
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if (index >= MAX_FB_BUFFER)
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return NULL;
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obj = exynos_fb->exynos_gem_obj[index];
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if (!obj)
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exynos_gem = exynos_fb->exynos_gem[index];
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if (!exynos_gem)
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return NULL;
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DRM_DEBUG_KMS("dma_addr = 0x%lx\n", (unsigned long)obj->dma_addr);
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DRM_DEBUG_KMS("dma_addr: 0x%lx\n", (unsigned long)exynos_gem->dma_addr);
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return obj;
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return exynos_gem;
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}
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static void exynos_drm_output_poll_changed(struct drm_device *dev)
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@ -19,12 +19,11 @@
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struct drm_framebuffer *
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exynos_drm_framebuffer_init(struct drm_device *dev,
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struct drm_mode_fb_cmd2 *mode_cmd,
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struct exynos_drm_gem_obj **gem_obj,
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struct exynos_drm_gem **exynos_gem,
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int count);
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/* get gem object of a drm framebuffer */
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struct exynos_drm_gem_obj *exynos_drm_fb_gem_obj(struct drm_framebuffer *fb,
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int index);
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struct exynos_drm_gem *exynos_drm_fb_gem(struct drm_framebuffer *fb, int index);
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void exynos_drm_mode_config_init(struct drm_device *dev);
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@ -30,8 +30,8 @@
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drm_fb_helper)
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struct exynos_drm_fbdev {
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struct drm_fb_helper drm_fb_helper;
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struct exynos_drm_gem_obj *obj;
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struct drm_fb_helper drm_fb_helper;
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struct exynos_drm_gem *exynos_gem;
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};
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static int exynos_drm_fb_mmap(struct fb_info *info,
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@ -39,7 +39,7 @@ static int exynos_drm_fb_mmap(struct fb_info *info,
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{
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struct drm_fb_helper *helper = info->par;
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struct exynos_drm_fbdev *exynos_fbd = to_exynos_fbdev(helper);
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struct exynos_drm_gem_obj *obj = exynos_fbd->obj;
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struct exynos_drm_gem *exynos_gem = exynos_fbd->exynos_gem;
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unsigned long vm_size;
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int ret;
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@ -47,11 +47,12 @@ static int exynos_drm_fb_mmap(struct fb_info *info,
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vm_size = vma->vm_end - vma->vm_start;
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if (vm_size > obj->size)
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if (vm_size > exynos_gem->size)
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return -EINVAL;
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ret = dma_mmap_attrs(helper->dev->dev, vma, obj->pages, obj->dma_addr,
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obj->size, &obj->dma_attrs);
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ret = dma_mmap_attrs(helper->dev->dev, vma, exynos_gem->pages,
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exynos_gem->dma_addr, exynos_gem->size,
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&exynos_gem->dma_attrs);
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if (ret < 0) {
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DRM_ERROR("failed to mmap.\n");
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return ret;
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@ -75,7 +76,7 @@ static struct fb_ops exynos_drm_fb_ops = {
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static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
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struct drm_fb_helper_surface_size *sizes,
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struct exynos_drm_gem_obj *obj)
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struct exynos_drm_gem *exynos_gem)
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{
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struct fb_info *fbi;
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struct drm_framebuffer *fb = helper->fb;
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@ -96,11 +97,11 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
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drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->depth);
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drm_fb_helper_fill_var(fbi, helper, sizes->fb_width, sizes->fb_height);
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nr_pages = obj->size >> PAGE_SHIFT;
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nr_pages = exynos_gem->size >> PAGE_SHIFT;
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obj->kvaddr = (void __iomem *) vmap(obj->pages, nr_pages, VM_MAP,
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pgprot_writecombine(PAGE_KERNEL));
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if (!obj->kvaddr) {
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exynos_gem->kvaddr = (void __iomem *) vmap(exynos_gem->pages, nr_pages,
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VM_MAP, pgprot_writecombine(PAGE_KERNEL));
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if (!exynos_gem->kvaddr) {
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DRM_ERROR("failed to map pages to kernel space.\n");
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drm_fb_helper_release_fbi(helper);
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return -EIO;
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@ -109,7 +110,7 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
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offset = fbi->var.xoffset * (fb->bits_per_pixel >> 3);
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offset += fbi->var.yoffset * fb->pitches[0];
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fbi->screen_base = obj->kvaddr + offset;
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fbi->screen_base = exynos_gem->kvaddr + offset;
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fbi->screen_size = size;
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fbi->fix.smem_len = size;
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@ -120,7 +121,7 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
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struct drm_fb_helper_surface_size *sizes)
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{
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struct exynos_drm_fbdev *exynos_fbdev = to_exynos_fbdev(helper);
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struct exynos_drm_gem_obj *obj;
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struct exynos_drm_gem *exynos_gem;
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struct drm_device *dev = helper->dev;
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struct drm_mode_fb_cmd2 mode_cmd = { 0 };
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struct platform_device *pdev = dev->platformdev;
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@ -141,32 +142,34 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
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size = mode_cmd.pitches[0] * mode_cmd.height;
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obj = exynos_drm_gem_create(dev, EXYNOS_BO_CONTIG, size);
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exynos_gem = exynos_drm_gem_create(dev, EXYNOS_BO_CONTIG, size);
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/*
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* If physically contiguous memory allocation fails and if IOMMU is
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* supported then try to get buffer from non physically contiguous
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* memory area.
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*/
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if (IS_ERR(obj) && is_drm_iommu_supported(dev)) {
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if (IS_ERR(exynos_gem) && is_drm_iommu_supported(dev)) {
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dev_warn(&pdev->dev, "contiguous FB allocation failed, falling back to non-contiguous\n");
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obj = exynos_drm_gem_create(dev, EXYNOS_BO_NONCONTIG, size);
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exynos_gem = exynos_drm_gem_create(dev, EXYNOS_BO_NONCONTIG,
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size);
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}
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if (IS_ERR(obj)) {
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ret = PTR_ERR(obj);
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if (IS_ERR(exynos_gem)) {
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ret = PTR_ERR(exynos_gem);
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goto out;
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}
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exynos_fbdev->obj = obj;
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exynos_fbdev->exynos_gem = exynos_gem;
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helper->fb = exynos_drm_framebuffer_init(dev, &mode_cmd, &obj, 1);
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helper->fb =
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exynos_drm_framebuffer_init(dev, &mode_cmd, &exynos_gem, 1);
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if (IS_ERR(helper->fb)) {
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DRM_ERROR("failed to create drm framebuffer.\n");
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ret = PTR_ERR(helper->fb);
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goto err_destroy_gem;
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}
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ret = exynos_drm_fbdev_update(helper, sizes, obj);
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ret = exynos_drm_fbdev_update(helper, sizes, exynos_gem);
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if (ret < 0)
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goto err_destroy_framebuffer;
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@ -176,7 +179,7 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
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err_destroy_framebuffer:
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drm_framebuffer_cleanup(helper->fb);
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err_destroy_gem:
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exynos_drm_gem_destroy(obj);
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exynos_drm_gem_destroy(exynos_gem);
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/*
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* if failed, all resources allocated above would be released by
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@ -269,11 +272,11 @@ static void exynos_drm_fbdev_destroy(struct drm_device *dev,
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struct drm_fb_helper *fb_helper)
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{
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struct exynos_drm_fbdev *exynos_fbd = to_exynos_fbdev(fb_helper);
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struct exynos_drm_gem_obj *obj = exynos_fbd->obj;
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struct exynos_drm_gem *exynos_gem = exynos_fbd->exynos_gem;
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struct drm_framebuffer *fb;
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if (obj->kvaddr)
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vunmap(obj->kvaddr);
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if (exynos_gem->kvaddr)
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vunmap(exynos_gem->kvaddr);
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/* release drm framebuffer and real buffer */
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if (fb_helper->fb && fb_helper->fb->funcs) {
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@ -20,97 +20,100 @@
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#include "exynos_drm_gem.h"
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#include "exynos_drm_iommu.h"
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static int exynos_drm_alloc_buf(struct exynos_drm_gem_obj *obj)
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static int exynos_drm_alloc_buf(struct exynos_drm_gem *exynos_gem)
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{
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struct drm_device *dev = obj->base.dev;
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struct drm_device *dev = exynos_gem->base.dev;
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enum dma_attr attr;
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unsigned int nr_pages;
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if (obj->dma_addr) {
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if (exynos_gem->dma_addr) {
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DRM_DEBUG_KMS("already allocated.\n");
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return 0;
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}
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init_dma_attrs(&obj->dma_attrs);
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init_dma_attrs(&exynos_gem->dma_attrs);
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/*
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* if EXYNOS_BO_CONTIG, fully physically contiguous memory
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* region will be allocated else physically contiguous
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* as possible.
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*/
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if (!(obj->flags & EXYNOS_BO_NONCONTIG))
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dma_set_attr(DMA_ATTR_FORCE_CONTIGUOUS, &obj->dma_attrs);
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if (!(exynos_gem->flags & EXYNOS_BO_NONCONTIG))
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dma_set_attr(DMA_ATTR_FORCE_CONTIGUOUS, &exynos_gem->dma_attrs);
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/*
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* if EXYNOS_BO_WC or EXYNOS_BO_NONCACHABLE, writecombine mapping
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* else cachable mapping.
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*/
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if (obj->flags & EXYNOS_BO_WC || !(obj->flags & EXYNOS_BO_CACHABLE))
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if (exynos_gem->flags & EXYNOS_BO_WC ||
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!(exynos_gem->flags & EXYNOS_BO_CACHABLE))
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attr = DMA_ATTR_WRITE_COMBINE;
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else
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attr = DMA_ATTR_NON_CONSISTENT;
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dma_set_attr(attr, &obj->dma_attrs);
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dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &obj->dma_attrs);
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dma_set_attr(attr, &exynos_gem->dma_attrs);
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dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &exynos_gem->dma_attrs);
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nr_pages = obj->size >> PAGE_SHIFT;
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nr_pages = exynos_gem->size >> PAGE_SHIFT;
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if (!is_drm_iommu_supported(dev)) {
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obj->pages = drm_calloc_large(nr_pages, sizeof(struct page *));
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if (!obj->pages) {
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exynos_gem->pages = drm_calloc_large(nr_pages,
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sizeof(struct page *));
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if (!exynos_gem->pages) {
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DRM_ERROR("failed to allocate pages.\n");
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return -ENOMEM;
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}
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}
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obj->cookie = dma_alloc_attrs(dev->dev, obj->size, &obj->dma_addr,
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GFP_KERNEL, &obj->dma_attrs);
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if (!obj->cookie) {
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exynos_gem->cookie = dma_alloc_attrs(dev->dev, exynos_gem->size,
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&exynos_gem->dma_addr, GFP_KERNEL,
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&exynos_gem->dma_attrs);
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if (!exynos_gem->cookie) {
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DRM_ERROR("failed to allocate buffer.\n");
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if (obj->pages)
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drm_free_large(obj->pages);
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if (exynos_gem->pages)
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drm_free_large(exynos_gem->pages);
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return -ENOMEM;
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}
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if (obj->pages) {
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if (exynos_gem->pages) {
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dma_addr_t start_addr;
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unsigned int i = 0;
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start_addr = obj->dma_addr;
|
||||
start_addr = exynos_gem->dma_addr;
|
||||
while (i < nr_pages) {
|
||||
obj->pages[i] = pfn_to_page(dma_to_pfn(dev->dev,
|
||||
start_addr));
|
||||
exynos_gem->pages[i] =
|
||||
pfn_to_page(dma_to_pfn(dev->dev, start_addr));
|
||||
start_addr += PAGE_SIZE;
|
||||
i++;
|
||||
}
|
||||
} else {
|
||||
obj->pages = obj->cookie;
|
||||
exynos_gem->pages = exynos_gem->cookie;
|
||||
}
|
||||
|
||||
DRM_DEBUG_KMS("dma_addr(0x%lx), size(0x%lx)\n",
|
||||
(unsigned long)obj->dma_addr,
|
||||
obj->size);
|
||||
(unsigned long)exynos_gem->dma_addr, exynos_gem->size);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void exynos_drm_free_buf(struct exynos_drm_gem_obj *obj)
|
||||
static void exynos_drm_free_buf(struct exynos_drm_gem *exynos_gem)
|
||||
{
|
||||
struct drm_device *dev = obj->base.dev;
|
||||
struct drm_device *dev = exynos_gem->base.dev;
|
||||
|
||||
if (!obj->dma_addr) {
|
||||
if (!exynos_gem->dma_addr) {
|
||||
DRM_DEBUG_KMS("dma_addr is invalid.\n");
|
||||
return;
|
||||
}
|
||||
|
||||
DRM_DEBUG_KMS("dma_addr(0x%lx), size(0x%lx)\n",
|
||||
(unsigned long)obj->dma_addr, obj->size);
|
||||
(unsigned long)exynos_gem->dma_addr, exynos_gem->size);
|
||||
|
||||
dma_free_attrs(dev->dev, obj->size, obj->cookie,
|
||||
(dma_addr_t)obj->dma_addr, &obj->dma_attrs);
|
||||
dma_free_attrs(dev->dev, exynos_gem->size, exynos_gem->cookie,
|
||||
(dma_addr_t)exynos_gem->dma_addr,
|
||||
&exynos_gem->dma_attrs);
|
||||
|
||||
if (!is_drm_iommu_supported(dev))
|
||||
drm_free_large(obj->pages);
|
||||
drm_free_large(exynos_gem->pages);
|
||||
}
|
||||
|
||||
static int exynos_drm_gem_handle_create(struct drm_gem_object *obj,
|
||||
|
|
@ -135,9 +138,9 @@ static int exynos_drm_gem_handle_create(struct drm_gem_object *obj,
|
|||
return 0;
|
||||
}
|
||||
|
||||
void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj)
|
||||
void exynos_drm_gem_destroy(struct exynos_drm_gem *exynos_gem)
|
||||
{
|
||||
struct drm_gem_object *obj = &exynos_gem_obj->base;
|
||||
struct drm_gem_object *obj = &exynos_gem->base;
|
||||
|
||||
DRM_DEBUG_KMS("handle count = %d\n", obj->handle_count);
|
||||
|
||||
|
|
@ -148,21 +151,21 @@ void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj)
|
|||
* once dmabuf's refcount becomes 0.
|
||||
*/
|
||||
if (obj->import_attach)
|
||||
drm_prime_gem_destroy(obj, exynos_gem_obj->sgt);
|
||||
drm_prime_gem_destroy(obj, exynos_gem->sgt);
|
||||
else
|
||||
exynos_drm_free_buf(exynos_gem_obj);
|
||||
exynos_drm_free_buf(exynos_gem);
|
||||
|
||||
/* release file pointer to gem object. */
|
||||
drm_gem_object_release(obj);
|
||||
|
||||
kfree(exynos_gem_obj);
|
||||
kfree(exynos_gem);
|
||||
}
|
||||
|
||||
unsigned long exynos_drm_gem_get_size(struct drm_device *dev,
|
||||
unsigned int gem_handle,
|
||||
struct drm_file *file_priv)
|
||||
{
|
||||
struct exynos_drm_gem_obj *exynos_gem_obj;
|
||||
struct exynos_drm_gem *exynos_gem;
|
||||
struct drm_gem_object *obj;
|
||||
|
||||
obj = drm_gem_object_lookup(dev, file_priv, gem_handle);
|
||||
|
|
@ -171,51 +174,51 @@ unsigned long exynos_drm_gem_get_size(struct drm_device *dev,
|
|||
return 0;
|
||||
}
|
||||
|
||||
exynos_gem_obj = to_exynos_gem_obj(obj);
|
||||
exynos_gem = to_exynos_gem(obj);
|
||||
|
||||
drm_gem_object_unreference_unlocked(obj);
|
||||
|
||||
return exynos_gem_obj->size;
|
||||
return exynos_gem->size;
|
||||
}
|
||||
|
||||
static struct exynos_drm_gem_obj *exynos_drm_gem_init(struct drm_device *dev,
|
||||
unsigned long size)
|
||||
static struct exynos_drm_gem *exynos_drm_gem_init(struct drm_device *dev,
|
||||
unsigned long size)
|
||||
{
|
||||
struct exynos_drm_gem_obj *exynos_gem_obj;
|
||||
struct exynos_drm_gem *exynos_gem;
|
||||
struct drm_gem_object *obj;
|
||||
int ret;
|
||||
|
||||
exynos_gem_obj = kzalloc(sizeof(*exynos_gem_obj), GFP_KERNEL);
|
||||
if (!exynos_gem_obj)
|
||||
exynos_gem = kzalloc(sizeof(*exynos_gem), GFP_KERNEL);
|
||||
if (!exynos_gem)
|
||||
return ERR_PTR(-ENOMEM);
|
||||
|
||||
exynos_gem_obj->size = size;
|
||||
obj = &exynos_gem_obj->base;
|
||||
exynos_gem->size = size;
|
||||
obj = &exynos_gem->base;
|
||||
|
||||
ret = drm_gem_object_init(dev, obj, size);
|
||||
if (ret < 0) {
|
||||
DRM_ERROR("failed to initialize gem object\n");
|
||||
kfree(exynos_gem_obj);
|
||||
kfree(exynos_gem);
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
|
||||
ret = drm_gem_create_mmap_offset(obj);
|
||||
if (ret < 0) {
|
||||
drm_gem_object_release(obj);
|
||||
kfree(exynos_gem_obj);
|
||||
kfree(exynos_gem);
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
|
||||
DRM_DEBUG_KMS("created file object = 0x%x\n", (unsigned int)obj->filp);
|
||||
|
||||
return exynos_gem_obj;
|
||||
return exynos_gem;
|
||||
}
|
||||
|
||||
struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev,
|
||||
unsigned int flags,
|
||||
unsigned long size)
|
||||
struct exynos_drm_gem *exynos_drm_gem_create(struct drm_device *dev,
|
||||
unsigned int flags,
|
||||
unsigned long size)
|
||||
{
|
||||
struct exynos_drm_gem_obj *exynos_gem_obj;
|
||||
struct exynos_drm_gem *exynos_gem;
|
||||
int ret;
|
||||
|
||||
if (flags & ~(EXYNOS_BO_MASK)) {
|
||||
|
|
@ -230,38 +233,38 @@ struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev,
|
|||
|
||||
size = roundup(size, PAGE_SIZE);
|
||||
|
||||
exynos_gem_obj = exynos_drm_gem_init(dev, size);
|
||||
if (IS_ERR(exynos_gem_obj))
|
||||
return exynos_gem_obj;
|
||||
exynos_gem = exynos_drm_gem_init(dev, size);
|
||||
if (IS_ERR(exynos_gem))
|
||||
return exynos_gem;
|
||||
|
||||
/* set memory type and cache attribute from user side. */
|
||||
exynos_gem_obj->flags = flags;
|
||||
exynos_gem->flags = flags;
|
||||
|
||||
ret = exynos_drm_alloc_buf(exynos_gem_obj);
|
||||
ret = exynos_drm_alloc_buf(exynos_gem);
|
||||
if (ret < 0) {
|
||||
drm_gem_object_release(&exynos_gem_obj->base);
|
||||
kfree(exynos_gem_obj);
|
||||
drm_gem_object_release(&exynos_gem->base);
|
||||
kfree(exynos_gem);
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
|
||||
return exynos_gem_obj;
|
||||
return exynos_gem;
|
||||
}
|
||||
|
||||
int exynos_drm_gem_create_ioctl(struct drm_device *dev, void *data,
|
||||
struct drm_file *file_priv)
|
||||
{
|
||||
struct drm_exynos_gem_create *args = data;
|
||||
struct exynos_drm_gem_obj *exynos_gem_obj;
|
||||
struct exynos_drm_gem *exynos_gem;
|
||||
int ret;
|
||||
|
||||
exynos_gem_obj = exynos_drm_gem_create(dev, args->flags, args->size);
|
||||
if (IS_ERR(exynos_gem_obj))
|
||||
return PTR_ERR(exynos_gem_obj);
|
||||
exynos_gem = exynos_drm_gem_create(dev, args->flags, args->size);
|
||||
if (IS_ERR(exynos_gem))
|
||||
return PTR_ERR(exynos_gem);
|
||||
|
||||
ret = exynos_drm_gem_handle_create(&exynos_gem_obj->base, file_priv,
|
||||
&args->handle);
|
||||
ret = exynos_drm_gem_handle_create(&exynos_gem->base, file_priv,
|
||||
&args->handle);
|
||||
if (ret) {
|
||||
exynos_drm_gem_destroy(exynos_gem_obj);
|
||||
exynos_drm_gem_destroy(exynos_gem);
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
|
@ -272,7 +275,7 @@ dma_addr_t *exynos_drm_gem_get_dma_addr(struct drm_device *dev,
|
|||
unsigned int gem_handle,
|
||||
struct drm_file *filp)
|
||||
{
|
||||
struct exynos_drm_gem_obj *exynos_gem_obj;
|
||||
struct exynos_drm_gem *exynos_gem;
|
||||
struct drm_gem_object *obj;
|
||||
|
||||
obj = drm_gem_object_lookup(dev, filp, gem_handle);
|
||||
|
|
@ -281,9 +284,9 @@ dma_addr_t *exynos_drm_gem_get_dma_addr(struct drm_device *dev,
|
|||
return ERR_PTR(-EINVAL);
|
||||
}
|
||||
|
||||
exynos_gem_obj = to_exynos_gem_obj(obj);
|
||||
exynos_gem = to_exynos_gem(obj);
|
||||
|
||||
return &exynos_gem_obj->dma_addr;
|
||||
return &exynos_gem->dma_addr;
|
||||
}
|
||||
|
||||
void exynos_drm_gem_put_dma_addr(struct drm_device *dev,
|
||||
|
|
@ -307,10 +310,10 @@ void exynos_drm_gem_put_dma_addr(struct drm_device *dev,
|
|||
drm_gem_object_unreference_unlocked(obj);
|
||||
}
|
||||
|
||||
static int exynos_drm_gem_mmap_buffer(struct exynos_drm_gem_obj *exynos_gem_obj,
|
||||
static int exynos_drm_gem_mmap_buffer(struct exynos_drm_gem *exynos_gem,
|
||||
struct vm_area_struct *vma)
|
||||
{
|
||||
struct drm_device *drm_dev = exynos_gem_obj->base.dev;
|
||||
struct drm_device *drm_dev = exynos_gem->base.dev;
|
||||
unsigned long vm_size;
|
||||
int ret;
|
||||
|
||||
|
|
@ -320,12 +323,12 @@ static int exynos_drm_gem_mmap_buffer(struct exynos_drm_gem_obj *exynos_gem_obj,
|
|||
vm_size = vma->vm_end - vma->vm_start;
|
||||
|
||||
/* check if user-requested size is valid. */
|
||||
if (vm_size > exynos_gem_obj->size)
|
||||
if (vm_size > exynos_gem->size)
|
||||
return -EINVAL;
|
||||
|
||||
ret = dma_mmap_attrs(drm_dev->dev, vma, exynos_gem_obj->pages,
|
||||
exynos_gem_obj->dma_addr, exynos_gem_obj->size,
|
||||
&exynos_gem_obj->dma_attrs);
|
||||
ret = dma_mmap_attrs(drm_dev->dev, vma, exynos_gem->pages,
|
||||
exynos_gem->dma_addr, exynos_gem->size,
|
||||
&exynos_gem->dma_attrs);
|
||||
if (ret < 0) {
|
||||
DRM_ERROR("failed to mmap.\n");
|
||||
return ret;
|
||||
|
|
@ -337,7 +340,7 @@ static int exynos_drm_gem_mmap_buffer(struct exynos_drm_gem_obj *exynos_gem_obj,
|
|||
int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data,
|
||||
struct drm_file *file_priv)
|
||||
{
|
||||
struct exynos_drm_gem_obj *exynos_gem_obj;
|
||||
struct exynos_drm_gem *exynos_gem;
|
||||
struct drm_exynos_gem_info *args = data;
|
||||
struct drm_gem_object *obj;
|
||||
|
||||
|
|
@ -350,10 +353,10 @@ int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data,
|
|||
return -EINVAL;
|
||||
}
|
||||
|
||||
exynos_gem_obj = to_exynos_gem_obj(obj);
|
||||
exynos_gem = to_exynos_gem(obj);
|
||||
|
||||
args->flags = exynos_gem_obj->flags;
|
||||
args->size = exynos_gem_obj->size;
|
||||
args->flags = exynos_gem->flags;
|
||||
args->size = exynos_gem->size;
|
||||
|
||||
drm_gem_object_unreference(obj);
|
||||
mutex_unlock(&dev->struct_mutex);
|
||||
|
|
@ -389,14 +392,14 @@ void exynos_gem_unmap_sgt_from_dma(struct drm_device *drm_dev,
|
|||
|
||||
void exynos_drm_gem_free_object(struct drm_gem_object *obj)
|
||||
{
|
||||
exynos_drm_gem_destroy(to_exynos_gem_obj(obj));
|
||||
exynos_drm_gem_destroy(to_exynos_gem(obj));
|
||||
}
|
||||
|
||||
int exynos_drm_gem_dumb_create(struct drm_file *file_priv,
|
||||
struct drm_device *dev,
|
||||
struct drm_mode_create_dumb *args)
|
||||
{
|
||||
struct exynos_drm_gem_obj *exynos_gem_obj;
|
||||
struct exynos_drm_gem *exynos_gem;
|
||||
unsigned int flags;
|
||||
int ret;
|
||||
|
||||
|
|
@ -414,16 +417,16 @@ int exynos_drm_gem_dumb_create(struct drm_file *file_priv,
|
|||
else
|
||||
flags = EXYNOS_BO_CONTIG | EXYNOS_BO_WC;
|
||||
|
||||
exynos_gem_obj = exynos_drm_gem_create(dev, flags, args->size);
|
||||
if (IS_ERR(exynos_gem_obj)) {
|
||||
exynos_gem = exynos_drm_gem_create(dev, flags, args->size);
|
||||
if (IS_ERR(exynos_gem)) {
|
||||
dev_warn(dev->dev, "FB allocation failed.\n");
|
||||
return PTR_ERR(exynos_gem_obj);
|
||||
return PTR_ERR(exynos_gem);
|
||||
}
|
||||
|
||||
ret = exynos_drm_gem_handle_create(&exynos_gem_obj->base, file_priv,
|
||||
&args->handle);
|
||||
ret = exynos_drm_gem_handle_create(&exynos_gem->base, file_priv,
|
||||
&args->handle);
|
||||
if (ret) {
|
||||
exynos_drm_gem_destroy(exynos_gem_obj);
|
||||
exynos_drm_gem_destroy(exynos_gem);
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
|
@ -464,7 +467,7 @@ int exynos_drm_gem_dumb_map_offset(struct drm_file *file_priv,
|
|||
int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
|
||||
{
|
||||
struct drm_gem_object *obj = vma->vm_private_data;
|
||||
struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj);
|
||||
struct exynos_drm_gem *exynos_gem = to_exynos_gem(obj);
|
||||
unsigned long pfn;
|
||||
pgoff_t page_offset;
|
||||
int ret;
|
||||
|
|
@ -472,13 +475,13 @@ int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
|
|||
page_offset = ((unsigned long)vmf->virtual_address -
|
||||
vma->vm_start) >> PAGE_SHIFT;
|
||||
|
||||
if (page_offset >= (exynos_gem_obj->size >> PAGE_SHIFT)) {
|
||||
if (page_offset >= (exynos_gem->size >> PAGE_SHIFT)) {
|
||||
DRM_ERROR("invalid page offset\n");
|
||||
ret = -EINVAL;
|
||||
goto out;
|
||||
}
|
||||
|
||||
pfn = page_to_pfn(exynos_gem_obj->pages[page_offset]);
|
||||
pfn = page_to_pfn(exynos_gem->pages[page_offset]);
|
||||
ret = vm_insert_mixed(vma, (unsigned long)vmf->virtual_address, pfn);
|
||||
|
||||
out:
|
||||
|
|
@ -496,7 +499,7 @@ int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
|
|||
|
||||
int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
|
||||
{
|
||||
struct exynos_drm_gem_obj *exynos_gem_obj;
|
||||
struct exynos_drm_gem *exynos_gem;
|
||||
struct drm_gem_object *obj;
|
||||
int ret;
|
||||
|
||||
|
|
@ -508,21 +511,21 @@ int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
|
|||
}
|
||||
|
||||
obj = vma->vm_private_data;
|
||||
exynos_gem_obj = to_exynos_gem_obj(obj);
|
||||
exynos_gem = to_exynos_gem(obj);
|
||||
|
||||
DRM_DEBUG_KMS("flags = 0x%x\n", exynos_gem_obj->flags);
|
||||
DRM_DEBUG_KMS("flags = 0x%x\n", exynos_gem->flags);
|
||||
|
||||
/* non-cachable as default. */
|
||||
if (exynos_gem_obj->flags & EXYNOS_BO_CACHABLE)
|
||||
if (exynos_gem->flags & EXYNOS_BO_CACHABLE)
|
||||
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
|
||||
else if (exynos_gem_obj->flags & EXYNOS_BO_WC)
|
||||
else if (exynos_gem->flags & EXYNOS_BO_WC)
|
||||
vma->vm_page_prot =
|
||||
pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
|
||||
else
|
||||
vma->vm_page_prot =
|
||||
pgprot_noncached(vm_get_page_prot(vma->vm_flags));
|
||||
|
||||
ret = exynos_drm_gem_mmap_buffer(exynos_gem_obj, vma);
|
||||
ret = exynos_drm_gem_mmap_buffer(exynos_gem, vma);
|
||||
if (ret)
|
||||
goto err_close_vm;
|
||||
|
||||
|
|
@ -537,12 +540,12 @@ int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
|
|||
/* low-level interface prime helpers */
|
||||
struct sg_table *exynos_drm_gem_prime_get_sg_table(struct drm_gem_object *obj)
|
||||
{
|
||||
struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj);
|
||||
struct exynos_drm_gem *exynos_gem = to_exynos_gem(obj);
|
||||
int npages;
|
||||
|
||||
npages = exynos_gem_obj->size >> PAGE_SHIFT;
|
||||
npages = exynos_gem->size >> PAGE_SHIFT;
|
||||
|
||||
return drm_prime_pages_to_sg(exynos_gem_obj->pages, npages);
|
||||
return drm_prime_pages_to_sg(exynos_gem->pages, npages);
|
||||
}
|
||||
|
||||
struct drm_gem_object *
|
||||
|
|
@ -550,35 +553,35 @@ exynos_drm_gem_prime_import_sg_table(struct drm_device *dev,
|
|||
struct dma_buf_attachment *attach,
|
||||
struct sg_table *sgt)
|
||||
{
|
||||
struct exynos_drm_gem_obj *exynos_gem_obj;
|
||||
struct exynos_drm_gem *exynos_gem;
|
||||
int npages;
|
||||
int ret;
|
||||
|
||||
exynos_gem_obj = exynos_drm_gem_init(dev, attach->dmabuf->size);
|
||||
if (IS_ERR(exynos_gem_obj)) {
|
||||
ret = PTR_ERR(exynos_gem_obj);
|
||||
exynos_gem = exynos_drm_gem_init(dev, attach->dmabuf->size);
|
||||
if (IS_ERR(exynos_gem)) {
|
||||
ret = PTR_ERR(exynos_gem);
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
|
||||
exynos_gem_obj->dma_addr = sg_dma_address(sgt->sgl);
|
||||
exynos_gem->dma_addr = sg_dma_address(sgt->sgl);
|
||||
|
||||
npages = exynos_gem_obj->size >> PAGE_SHIFT;
|
||||
exynos_gem_obj->pages = drm_malloc_ab(npages, sizeof(struct page *));
|
||||
if (!exynos_gem_obj->pages) {
|
||||
npages = exynos_gem->size >> PAGE_SHIFT;
|
||||
exynos_gem->pages = drm_malloc_ab(npages, sizeof(struct page *));
|
||||
if (!exynos_gem->pages) {
|
||||
ret = -ENOMEM;
|
||||
goto err;
|
||||
}
|
||||
|
||||
ret = drm_prime_sg_to_page_addr_arrays(sgt, exynos_gem_obj->pages, NULL,
|
||||
npages);
|
||||
ret = drm_prime_sg_to_page_addr_arrays(sgt, exynos_gem->pages, NULL,
|
||||
npages);
|
||||
if (ret < 0)
|
||||
goto err_free_large;
|
||||
|
||||
exynos_gem_obj->sgt = sgt;
|
||||
exynos_gem->sgt = sgt;
|
||||
|
||||
if (sgt->nents == 1) {
|
||||
/* always physically continuous memory if sgt->nents is 1. */
|
||||
exynos_gem_obj->flags |= EXYNOS_BO_CONTIG;
|
||||
exynos_gem->flags |= EXYNOS_BO_CONTIG;
|
||||
} else {
|
||||
/*
|
||||
* this case could be CONTIG or NONCONTIG type but for now
|
||||
|
|
@ -586,16 +589,16 @@ exynos_drm_gem_prime_import_sg_table(struct drm_device *dev,
|
|||
* TODO. we have to find a way that exporter can notify
|
||||
* the type of its own buffer to importer.
|
||||
*/
|
||||
exynos_gem_obj->flags |= EXYNOS_BO_NONCONTIG;
|
||||
exynos_gem->flags |= EXYNOS_BO_NONCONTIG;
|
||||
}
|
||||
|
||||
return &exynos_gem_obj->base;
|
||||
return &exynos_gem->base;
|
||||
|
||||
err_free_large:
|
||||
drm_free_large(exynos_gem_obj->pages);
|
||||
drm_free_large(exynos_gem->pages);
|
||||
err:
|
||||
drm_gem_object_release(&exynos_gem_obj->base);
|
||||
kfree(exynos_gem_obj);
|
||||
drm_gem_object_release(&exynos_gem->base);
|
||||
kfree(exynos_gem);
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -14,8 +14,7 @@
|
|||
|
||||
#include <drm/drm_gem.h>
|
||||
|
||||
#define to_exynos_gem_obj(x) container_of(x,\
|
||||
struct exynos_drm_gem_obj, base)
|
||||
#define to_exynos_gem(x) container_of(x, struct exynos_drm_gem, base)
|
||||
|
||||
#define IS_NONCONTIG_BUFFER(f) (f & EXYNOS_BO_NONCONTIG)
|
||||
|
||||
|
|
@ -44,7 +43,7 @@
|
|||
* P.S. this object would be transferred to user as kms_bo.handle so
|
||||
* user can access the buffer through kms_bo.handle.
|
||||
*/
|
||||
struct exynos_drm_gem_obj {
|
||||
struct exynos_drm_gem {
|
||||
struct drm_gem_object base;
|
||||
unsigned int flags;
|
||||
unsigned long size;
|
||||
|
|
@ -59,12 +58,12 @@ struct exynos_drm_gem_obj {
|
|||
struct page **exynos_gem_get_pages(struct drm_gem_object *obj, gfp_t gfpmask);
|
||||
|
||||
/* destroy a buffer with gem object */
|
||||
void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj);
|
||||
void exynos_drm_gem_destroy(struct exynos_drm_gem *exynos_gem);
|
||||
|
||||
/* create a new buffer with gem object */
|
||||
struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev,
|
||||
unsigned int flags,
|
||||
unsigned long size);
|
||||
struct exynos_drm_gem *exynos_drm_gem_create(struct drm_device *dev,
|
||||
unsigned int flags,
|
||||
unsigned long size);
|
||||
|
||||
/*
|
||||
* request gem object creation and buffer allocation as the size
|
||||
|
|
@ -106,7 +105,7 @@ unsigned long exynos_drm_gem_get_size(struct drm_device *dev,
|
|||
struct drm_file *file_priv);
|
||||
|
||||
/* free gem object. */
|
||||
void exynos_drm_gem_free_object(struct drm_gem_object *gem_obj);
|
||||
void exynos_drm_gem_free_object(struct drm_gem_object *obj);
|
||||
|
||||
/* create memory region for drm framebuffer. */
|
||||
int exynos_drm_gem_dumb_create(struct drm_file *file_priv,
|
||||
|
|
|
|||
|
|
@ -128,15 +128,14 @@ static int exynos_plane_atomic_check(struct drm_plane *plane,
|
|||
|
||||
nr = drm_format_num_planes(state->fb->pixel_format);
|
||||
for (i = 0; i < nr; i++) {
|
||||
struct exynos_drm_gem_obj *obj =
|
||||
exynos_drm_fb_gem_obj(state->fb, i);
|
||||
|
||||
if (!obj) {
|
||||
struct exynos_drm_gem *exynos_gem =
|
||||
exynos_drm_fb_gem(state->fb, i);
|
||||
if (!exynos_gem) {
|
||||
DRM_DEBUG_KMS("gem object is null\n");
|
||||
return -EFAULT;
|
||||
}
|
||||
|
||||
exynos_plane->dma_addr[i] = obj->dma_addr +
|
||||
exynos_plane->dma_addr[i] = exynos_gem->dma_addr +
|
||||
state->fb->offsets[i];
|
||||
|
||||
DRM_DEBUG_KMS("buffer: %d, dma_addr = 0x%lx\n",
|
||||
|
|
|
|||
Loading…
Reference in a new issue