static struct drm_framebuffer *armada_fb_create(struct drm_device *dev, struct drm_file *dfile, struct drm_mode_fb_cmd2 *mode) { struct armada_gem_object *obj; struct armada_framebuffer *dfb; int ret; DRM_DEBUG_DRIVER("w%u h%u pf%08x f%u p%u,%u,%u\n", mode->width, mode->height, mode->pixel_format, mode->flags, mode->pitches[0], mode->pitches[1], mode->pitches[2]); /* We can only handle a single plane at the moment */ if (drm_format_num_planes(mode->pixel_format) > 1 && (mode->handles[0] != mode->handles[1] || mode->handles[0] != mode->handles[2])) { ret = -EINVAL; goto err; } obj = armada_gem_object_lookup(dev, dfile, mode->handles[0]); if (!obj) { ret = -ENOENT; goto err; } if (obj->obj.import_attach && !obj->sgt) { ret = armada_gem_map_import(obj); if (ret) goto err_unref; } /* Framebuffer objects must have a valid device address for scanout */ if (obj->dev_addr == DMA_ERROR_CODE) { ret = -EINVAL; goto err_unref; } dfb = armada_framebuffer_create(dev, mode, obj); if (IS_ERR(dfb)) { ret = PTR_ERR(dfb); goto err; } drm_gem_object_unreference_unlocked(&obj->obj); return &dfb->fb; err_unref: drm_gem_object_unreference_unlocked(&obj->obj); err: DRM_ERROR("failed to initialize framebuffer: %d\n", ret); return ERR_PTR(ret); }
static int armada_fb_create(struct drm_fb_helper *fbh, struct drm_fb_helper_surface_size *sizes) { struct drm_device *dev = fbh->dev; struct drm_mode_fb_cmd2 mode; struct armada_framebuffer *dfb; struct armada_gem_object *obj; struct fb_info *info; int size, ret; void *ptr; memset(&mode, 0, sizeof(mode)); mode.width = sizes->surface_width; mode.height = sizes->surface_height; mode.pitches[0] = armada_pitch(mode.width, sizes->surface_bpp); mode.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, sizes->surface_depth); size = mode.pitches[0] * mode.height; obj = armada_gem_alloc_private_object(dev, size); if (!obj) { DRM_ERROR("failed to allocate fb memory\n"); return -ENOMEM; } ret = armada_gem_linear_back(dev, obj); if (ret) { drm_gem_object_unreference_unlocked(&obj->obj); return ret; } ptr = armada_gem_map_object(dev, obj); if (!ptr) { drm_gem_object_unreference_unlocked(&obj->obj); return -ENOMEM; } dfb = armada_framebuffer_create(dev, &mode, obj); /* * A reference is now held by the framebuffer object if * successful, otherwise this drops the ref for the error path. */ drm_gem_object_unreference_unlocked(&obj->obj); if (IS_ERR(dfb)) return PTR_ERR(dfb); info = drm_fb_helper_alloc_fbi(fbh); if (IS_ERR(info)) { ret = PTR_ERR(info); goto err_fballoc; } strlcpy(info->fix.id, "armada-drmfb", sizeof(info->fix.id)); info->par = fbh; info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT; info->fbops = &armada_fb_ops; info->fix.smem_start = obj->phys_addr; info->fix.smem_len = obj->obj.size; info->screen_size = obj->obj.size; info->screen_base = ptr; fbh->fb = &dfb->fb; drm_fb_helper_fill_fix(info, dfb->fb.pitches[0], dfb->fb.format->depth); drm_fb_helper_fill_var(info, fbh, sizes->fb_width, sizes->fb_height); DRM_DEBUG_KMS("allocated %dx%d %dbpp fb: 0x%08llx\n", dfb->fb.width, dfb->fb.height, dfb->fb.format->cpp[0] * 8, (unsigned long long)obj->phys_addr); return 0; err_fballoc: dfb->fb.funcs->destroy(&dfb->fb); return ret; }