diff options
Diffstat (limited to 'drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c')
| -rw-r--r-- | drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c deleted file mode 100644 index b4c1cea051e8..000000000000 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_fbdev.c +++ /dev/null @@ -1,240 +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_crtc.h> -#include <drm/drm_fb_helper.h> -#include <drm/drm_fourcc.h> -#include <drm/drm_gem_vram_helper.h> -#include <drm/drm_probe_helper.h> - -#include "hibmc_drm_drv.h" - -static int hibmcfb_create_object( - struct hibmc_drm_private *priv, - const struct drm_mode_fb_cmd2 *mode_cmd, - struct drm_gem_object **gobj_p) -{ - struct drm_gem_object *gobj; - struct drm_device *dev = priv->dev; - u32 size; - int ret = 0; - - size = mode_cmd->pitches[0] * mode_cmd->height; - ret = hibmc_gem_create(dev, size, true, &gobj); - if (ret) - return ret; - - *gobj_p = gobj; - return ret; -} - -static struct fb_ops hibmc_drm_fb_ops = { - .owner = THIS_MODULE, - .fb_check_var = drm_fb_helper_check_var, - .fb_set_par = drm_fb_helper_set_par, - .fb_fillrect = drm_fb_helper_sys_fillrect, - .fb_copyarea = drm_fb_helper_sys_copyarea, - .fb_imageblit = drm_fb_helper_sys_imageblit, - .fb_pan_display = drm_fb_helper_pan_display, - .fb_blank = drm_fb_helper_blank, - .fb_setcmap = drm_fb_helper_setcmap, -}; - -static int hibmc_drm_fb_create(struct drm_fb_helper *helper, - struct drm_fb_helper_surface_size *sizes) -{ - struct hibmc_fbdev *hi_fbdev = - container_of(helper, struct hibmc_fbdev, helper); - struct hibmc_drm_private *priv = helper->dev->dev_private; - struct fb_info *info; - struct drm_mode_fb_cmd2 mode_cmd; - struct drm_gem_object *gobj = NULL; - int ret = 0; - size_t size; - unsigned int bytes_per_pixel; - struct drm_gem_vram_object *gbo = NULL; - void *base; - - DRM_DEBUG_DRIVER("surface width(%d), height(%d) and bpp(%d)\n", - sizes->surface_width, sizes->surface_height, - sizes->surface_bpp); - - bytes_per_pixel = DIV_ROUND_UP(sizes->surface_bpp, 8); - - mode_cmd.width = sizes->surface_width; - mode_cmd.height = sizes->surface_height; - mode_cmd.pitches[0] = mode_cmd.width * bytes_per_pixel; - mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, - sizes->surface_depth); - - size = PAGE_ALIGN(mode_cmd.pitches[0] * mode_cmd.height); - - ret = hibmcfb_create_object(priv, &mode_cmd, &gobj); - if (ret) { - DRM_ERROR("failed to create fbcon backing object: %d\n", ret); - return -ENOMEM; - } - - gbo = drm_gem_vram_of_gem(gobj); - - ret = drm_gem_vram_pin(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM); - if (ret) { - DRM_ERROR("failed to pin fbcon: %d\n", ret); - goto out_unref_gem; - } - - base = drm_gem_vram_kmap(gbo, true, NULL); - if (IS_ERR(base)) { - ret = PTR_ERR(base); - DRM_ERROR("failed to kmap fbcon: %d\n", ret); - goto out_unpin_bo; - } - - info = drm_fb_helper_alloc_fbi(helper); - if (IS_ERR(info)) { - ret = PTR_ERR(info); - DRM_ERROR("failed to allocate fbi: %d\n", ret); - goto out_release_fbi; - } - - hi_fbdev->fb = hibmc_framebuffer_init(priv->dev, &mode_cmd, gobj); - if (IS_ERR(hi_fbdev->fb)) { - ret = PTR_ERR(hi_fbdev->fb); - hi_fbdev->fb = NULL; - DRM_ERROR("failed to initialize framebuffer: %d\n", ret); - goto out_release_fbi; - } - - priv->fbdev->size = size; - hi_fbdev->helper.fb = &hi_fbdev->fb->fb; - - info->fbops = &hibmc_drm_fb_ops; - - drm_fb_helper_fill_info(info, &priv->fbdev->helper, sizes); - - info->screen_base = base; - info->screen_size = size; - - info->fix.smem_start = gbo->bo.mem.bus.offset + gbo->bo.mem.bus.base; - info->fix.smem_len = size; - return 0; - -out_release_fbi: - drm_gem_vram_kunmap(gbo); -out_unpin_bo: - drm_gem_vram_unpin(gbo); -out_unref_gem: - drm_gem_object_put_unlocked(gobj); - - return ret; -} - -static void hibmc_fbdev_destroy(struct hibmc_fbdev *fbdev) -{ - struct hibmc_framebuffer *gfb = fbdev->fb; - struct drm_fb_helper *fbh = &fbdev->helper; - - drm_fb_helper_unregister_fbi(fbh); - - drm_fb_helper_fini(fbh); - - if (gfb) - drm_framebuffer_put(&gfb->fb); -} - -static const struct drm_fb_helper_funcs hibmc_fbdev_helper_funcs = { - .fb_probe = hibmc_drm_fb_create, -}; - -int hibmc_fbdev_init(struct hibmc_drm_private *priv) -{ - int ret; - struct fb_var_screeninfo *var; - struct fb_fix_screeninfo *fix; - struct hibmc_fbdev *hifbdev; - - hifbdev = devm_kzalloc(priv->dev->dev, sizeof(*hifbdev), GFP_KERNEL); - if (!hifbdev) { - DRM_ERROR("failed to allocate hibmc_fbdev\n"); - return -ENOMEM; - } - - priv->fbdev = hifbdev; - drm_fb_helper_prepare(priv->dev, &hifbdev->helper, - &hibmc_fbdev_helper_funcs); - - /* Now just one crtc and one channel */ - ret = drm_fb_helper_init(priv->dev, &hifbdev->helper, 1); - if (ret) { - DRM_ERROR("failed to initialize fb helper: %d\n", ret); - return ret; - } - - ret = drm_fb_helper_single_add_all_connectors(&hifbdev->helper); - if (ret) { - DRM_ERROR("failed to add all connectors: %d\n", ret); - goto fini; - } - - ret = drm_fb_helper_initial_config(&hifbdev->helper, 16); - if (ret) { - DRM_ERROR("failed to setup initial conn config: %d\n", ret); - goto fini; - } - - var = &hifbdev->helper.fbdev->var; - fix = &hifbdev->helper.fbdev->fix; - - DRM_DEBUG_DRIVER("Member of info->var is :\n" - "xres=%d\n" - "yres=%d\n" - "xres_virtual=%d\n" - "yres_virtual=%d\n" - "xoffset=%d\n" - "yoffset=%d\n" - "bits_per_pixel=%d\n" - "...\n", var->xres, var->yres, var->xres_virtual, - var->yres_virtual, var->xoffset, var->yoffset, - var->bits_per_pixel); - DRM_DEBUG_DRIVER("Member of info->fix is :\n" - "smem_start=%lx\n" - "smem_len=%d\n" - "type=%d\n" - "type_aux=%d\n" - "visual=%d\n" - "xpanstep=%d\n" - "ypanstep=%d\n" - "ywrapstep=%d\n" - "line_length=%d\n" - "accel=%d\n" - "capabilities=%d\n" - "...\n", fix->smem_start, fix->smem_len, fix->type, - fix->type_aux, fix->visual, fix->xpanstep, - fix->ypanstep, fix->ywrapstep, fix->line_length, - fix->accel, fix->capabilities); - - return 0; - -fini: - drm_fb_helper_fini(&hifbdev->helper); - return ret; -} - -void hibmc_fbdev_fini(struct hibmc_drm_private *priv) -{ - if (!priv->fbdev) - return; - - hibmc_fbdev_destroy(priv->fbdev); - priv->fbdev = NULL; -} |