int exynos_drm_overlay_update(struct exynos_drm_overlay *overlay, struct drm_framebuffer *fb, struct drm_display_mode *mode, struct exynos_drm_crtc_pos *pos) { struct exynos_drm_gem_buf *buffer; unsigned int actual_w; unsigned int actual_h; int nr = exynos_drm_format_num_buffers(fb->pixel_format); int i; for (i = 0; i < nr; i++) { buffer = exynos_drm_fb_buffer(fb, i); if (!buffer) { DRM_LOG_KMS("buffer is null\n"); return -EFAULT; } overlay->dma_addr[i] = buffer->dma_addr; overlay->vaddr[i] = buffer->kvaddr; DRM_DEBUG_KMS("buffer: %d, vaddr = 0x%lx, dma_addr = 0x%lx\n", i, (unsigned long)overlay->vaddr[i], (unsigned long)overlay->dma_addr[i]); } actual_w = min((mode->hdisplay - pos->crtc_x), pos->crtc_w); actual_h = min((mode->vdisplay - pos->crtc_y), pos->crtc_h); /* set drm framebuffer data. */ overlay->fb_x = pos->fb_x; overlay->fb_y = pos->fb_y; overlay->fb_width = fb->width; overlay->fb_height = fb->height; overlay->src_width = pos->src_w; overlay->src_height = pos->src_h; overlay->bpp = fb->bits_per_pixel; overlay->pitch = fb->pitches[0]; overlay->pixel_format = fb->pixel_format; /* set overlay range to be displayed. */ overlay->crtc_x = pos->crtc_x; overlay->crtc_y = pos->crtc_y; overlay->crtc_width = actual_w; overlay->crtc_height = actual_h; /* set drm mode data. */ overlay->mode_width = mode->hdisplay; overlay->mode_height = mode->vdisplay; overlay->refresh = mode->vrefresh; overlay->scan_flag = mode->flags; DRM_DEBUG_KMS("overlay : offset_x/y(%d,%d), width/height(%d,%d)", overlay->crtc_x, overlay->crtc_y, overlay->crtc_width, overlay->crtc_height); return 0; }
static struct drm_framebuffer * exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd) { struct drm_gem_object *obj; struct drm_framebuffer *fb; struct exynos_drm_fb *exynos_fb; int nr; int i; DRM_DEBUG_KMS("%s\n", __FILE__); obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]); if (!obj) { DRM_ERROR("failed to lookup gem object\n"); return ERR_PTR(-ENOENT); } drm_gem_object_unreference_unlocked(obj); fb = exynos_drm_framebuffer_init(dev, mode_cmd, obj); if (IS_ERR(fb)) return fb; exynos_fb = to_exynos_fb(fb); nr = exynos_drm_format_num_buffers(fb->pixel_format); for (i = 1; i < nr; i++) { obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[i]); if (!obj) { DRM_ERROR("failed to lookup gem object\n"); exynos_drm_fb_destroy(fb); return ERR_PTR(-ENOENT); } drm_gem_object_unreference_unlocked(obj); exynos_fb->exynos_gem_obj[i] = to_exynos_gem_obj(obj); } return fb; }
static struct drm_framebuffer * exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd) { struct drm_gem_object *obj; struct exynos_drm_gem_obj *exynos_gem_obj; struct exynos_drm_fb *exynos_fb; int i, ret; exynos_fb = kzalloc(sizeof(*exynos_fb), GFP_KERNEL); if (!exynos_fb) return ERR_PTR(-ENOMEM); obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]); if (!obj) { DRM_ERROR("failed to lookup gem object\n"); ret = -ENOENT; goto err_free; } drm_helper_mode_fill_fb_struct(&exynos_fb->fb, mode_cmd); exynos_fb->exynos_gem_obj[0] = to_exynos_gem_obj(obj); exynos_fb->buf_cnt = exynos_drm_format_num_buffers(mode_cmd); DRM_DEBUG_KMS("buf_cnt = %d\n", exynos_fb->buf_cnt); for (i = 1; i < exynos_fb->buf_cnt; i++) { obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[i]); if (!obj) { DRM_ERROR("failed to lookup gem object\n"); ret = -ENOENT; exynos_fb->buf_cnt = i; goto err_unreference; } exynos_gem_obj = to_exynos_gem_obj(obj); exynos_fb->exynos_gem_obj[i] = exynos_gem_obj; ret = check_fb_gem_memory_type(dev, exynos_gem_obj); if (ret < 0) { DRM_ERROR("cannot use this gem memory type for fb.\n"); goto err_unreference; } } ret = drm_framebuffer_init(dev, &exynos_fb->fb, &exynos_drm_fb_funcs); if (ret) { DRM_ERROR("failed to init framebuffer.\n"); goto err_unreference; } return &exynos_fb->fb; err_unreference: for (i = 0; i < exynos_fb->buf_cnt; i++) { struct drm_gem_object *obj; obj = &exynos_fb->exynos_gem_obj[i]->base; if (obj) drm_gem_object_unreference_unlocked(obj); } err_free: kfree(exynos_fb); return ERR_PTR(ret); }