diff options
Diffstat (limited to 'drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c deleted file mode 100644 index 5d4a03cd7d50..000000000000 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_ttm.c +++ /dev/null @@ -1,165 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* Hisilicon Hibmc SoC drm driver - * - * Based on the bochs drm driver. - * - * Copyright (c) 2016 Huawei Limited. - * - * Author: - * Rongrong Zou <zourongrong@huawei.com> - * Rongrong Zou <zourongrong@gmail.com> - * Jianhua Li <lijianhua@huawei.com> - */ - -#include <drm/drm_atomic_helper.h> - -#include "hibmc_drm_drv.h" - -int hibmc_mm_init(struct hibmc_drm_private *hibmc) -{ - struct drm_vram_mm *vmm; - int ret; - struct drm_device *dev = hibmc->dev; - - vmm = drm_vram_helper_alloc_mm(dev, - pci_resource_start(dev->pdev, 0), - hibmc->fb_size, &drm_gem_vram_mm_funcs); - if (IS_ERR(vmm)) { - ret = PTR_ERR(vmm); - DRM_ERROR("Error initializing VRAM MM; %d\n", ret); - return ret; - } - - return 0; -} - -void hibmc_mm_fini(struct hibmc_drm_private *hibmc) -{ - if (!hibmc->dev->vram_mm) - return; - - drm_vram_helper_release_mm(hibmc->dev); -} - -int hibmc_gem_create(struct drm_device *dev, u32 size, bool iskernel, - struct drm_gem_object **obj) -{ - struct drm_gem_vram_object *gbo; - int ret; - - *obj = NULL; - - size = roundup(size, PAGE_SIZE); - if (size == 0) - return -EINVAL; - - gbo = drm_gem_vram_create(dev, &dev->vram_mm->bdev, size, 0, false); - if (IS_ERR(gbo)) { - ret = PTR_ERR(gbo); - if (ret != -ERESTARTSYS) - DRM_ERROR("failed to allocate GEM object: %d\n", ret); - return ret; - } - *obj = &gbo->gem; - return 0; -} - -int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev, - struct drm_mode_create_dumb *args) -{ - struct drm_gem_object *gobj; - u32 handle; - int ret; - - args->pitch = ALIGN(args->width * DIV_ROUND_UP(args->bpp, 8), 16); - args->size = args->pitch * args->height; - - ret = hibmc_gem_create(dev, args->size, false, - &gobj); - if (ret) { - DRM_ERROR("failed to create GEM object: %d\n", ret); - return ret; - } - - ret = drm_gem_handle_create(file, gobj, &handle); - drm_gem_object_put_unlocked(gobj); - if (ret) { - DRM_ERROR("failed to unreference GEM object: %d\n", ret); - return ret; - } - - args->handle = handle; - return 0; -} - -static void hibmc_user_framebuffer_destroy(struct drm_framebuffer *fb) -{ - struct hibmc_framebuffer *hibmc_fb = to_hibmc_framebuffer(fb); - - drm_gem_object_put_unlocked(hibmc_fb->obj); - drm_framebuffer_cleanup(fb); - kfree(hibmc_fb); -} - -static const struct drm_framebuffer_funcs hibmc_fb_funcs = { - .destroy = hibmc_user_framebuffer_destroy, -}; - -struct hibmc_framebuffer * -hibmc_framebuffer_init(struct drm_device *dev, - const struct drm_mode_fb_cmd2 *mode_cmd, - struct drm_gem_object *obj) -{ - struct hibmc_framebuffer *hibmc_fb; - int ret; - - hibmc_fb = kzalloc(sizeof(*hibmc_fb), GFP_KERNEL); - if (!hibmc_fb) { - DRM_ERROR("failed to allocate hibmc_fb\n"); - return ERR_PTR(-ENOMEM); - } - - drm_helper_mode_fill_fb_struct(dev, &hibmc_fb->fb, mode_cmd); - hibmc_fb->obj = obj; - ret = drm_framebuffer_init(dev, &hibmc_fb->fb, &hibmc_fb_funcs); - if (ret) { - DRM_ERROR("drm_framebuffer_init failed: %d\n", ret); - kfree(hibmc_fb); - return ERR_PTR(ret); - } - - return hibmc_fb; -} - -static struct drm_framebuffer * -hibmc_user_framebuffer_create(struct drm_device *dev, - struct drm_file *filp, - const struct drm_mode_fb_cmd2 *mode_cmd) -{ - struct drm_gem_object *obj; - struct hibmc_framebuffer *hibmc_fb; - - DRM_DEBUG_DRIVER("%dx%d, format %c%c%c%c\n", - mode_cmd->width, mode_cmd->height, - (mode_cmd->pixel_format) & 0xff, - (mode_cmd->pixel_format >> 8) & 0xff, - (mode_cmd->pixel_format >> 16) & 0xff, - (mode_cmd->pixel_format >> 24) & 0xff); - - obj = drm_gem_object_lookup(filp, mode_cmd->handles[0]); - if (!obj) - return ERR_PTR(-ENOENT); - - hibmc_fb = hibmc_framebuffer_init(dev, mode_cmd, obj); - if (IS_ERR(hibmc_fb)) { - drm_gem_object_put_unlocked(obj); - return ERR_PTR((long)hibmc_fb); - } - return &hibmc_fb->fb; -} - -const struct drm_mode_config_funcs hibmc_mode_funcs = { - .atomic_check = drm_atomic_helper_check, - .atomic_commit = drm_atomic_helper_commit, - .fb_create = hibmc_user_framebuffer_create, -}; |