diff options
Diffstat (limited to 'drivers/gpu/drm/drm_fb_cma_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_fb_cma_helper.c | 95 |
1 files changed, 72 insertions, 23 deletions
diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c index fd9d0af4d536..0b5af7d0edb1 100644 --- a/drivers/gpu/drm/drm_fb_cma_helper.c +++ b/drivers/gpu/drm/drm_fb_cma_helper.c @@ -85,6 +85,11 @@ static struct drm_fb_cma *drm_fb_cma_alloc(struct drm_device *dev, if (!fb_cma) return ERR_PTR(-ENOMEM); + drm_helper_mode_fill_fb_struct(&fb_cma->fb, mode_cmd); + + for (i = 0; i < num_planes; i++) + fb_cma->obj[i] = obj[i]; + ret = drm_framebuffer_init(dev, &fb_cma->fb, &drm_fb_cma_funcs); if (ret) { dev_err(dev->dev, "Failed to initalize framebuffer: %d\n", ret); @@ -92,11 +97,6 @@ static struct drm_fb_cma *drm_fb_cma_alloc(struct drm_device *dev, return ERR_PTR(ret); } - drm_helper_mode_fill_fb_struct(&fb_cma->fb, mode_cmd); - - for (i = 0; i < num_planes; i++) - fb_cma->obj[i] = obj[i]; - return fb_cma; } @@ -180,6 +180,59 @@ struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb, } EXPORT_SYMBOL_GPL(drm_fb_cma_get_gem_obj); +#ifdef CONFIG_DEBUG_FS +/** + * drm_fb_cma_describe() - Helper to dump information about a single + * CMA framebuffer object + */ +void drm_fb_cma_describe(struct drm_framebuffer *fb, struct seq_file *m) +{ + struct drm_fb_cma *fb_cma = to_fb_cma(fb); + int i, n = drm_format_num_planes(fb->pixel_format); + + seq_printf(m, "fb: %dx%d@%4.4s\n", fb->width, fb->height, + (char *)&fb->pixel_format); + + for (i = 0; i < n; i++) { + seq_printf(m, " %d: offset=%d pitch=%d, obj: ", + i, fb->offsets[i], fb->pitches[i]); + drm_gem_cma_describe(fb_cma->obj[i], m); + } +} +EXPORT_SYMBOL_GPL(drm_fb_cma_describe); + +/** + * drm_fb_cma_debugfs_show() - Helper to list CMA framebuffer objects + * in debugfs. + */ +int drm_fb_cma_debugfs_show(struct seq_file *m, void *arg) +{ + struct drm_info_node *node = (struct drm_info_node *) m->private; + struct drm_device *dev = node->minor->dev; + struct drm_framebuffer *fb; + int ret; + + ret = mutex_lock_interruptible(&dev->mode_config.mutex); + if (ret) + return ret; + + ret = mutex_lock_interruptible(&dev->struct_mutex); + if (ret) { + mutex_unlock(&dev->mode_config.mutex); + return ret; + } + + list_for_each_entry(fb, &dev->mode_config.fb_list, head) + drm_fb_cma_describe(fb, m); + + mutex_unlock(&dev->struct_mutex); + mutex_unlock(&dev->mode_config.mutex); + + return 0; +} +EXPORT_SYMBOL_GPL(drm_fb_cma_debugfs_show); +#endif + static struct fb_ops drm_fbdev_cma_ops = { .owner = THIS_MODULE, .fb_fillrect = sys_fillrect, @@ -266,6 +319,7 @@ static int drm_fbdev_cma_create(struct drm_fb_helper *helper, return 0; err_drm_fb_cma_destroy: + drm_framebuffer_unregister_private(fb); drm_fb_cma_destroy(fb); err_framebuffer_release: framebuffer_release(fbi); @@ -274,23 +328,8 @@ err_drm_gem_cma_free_object: return ret; } -static int drm_fbdev_cma_probe(struct drm_fb_helper *helper, - struct drm_fb_helper_surface_size *sizes) -{ - int ret = 0; - - if (!helper->fb) { - ret = drm_fbdev_cma_create(helper, sizes); - if (ret < 0) - return ret; - ret = 1; - } - - return ret; -} - static struct drm_fb_helper_funcs drm_fb_cma_helper_funcs = { - .fb_probe = drm_fbdev_cma_probe, + .fb_probe = drm_fbdev_cma_create, }; /** @@ -332,6 +371,9 @@ struct drm_fbdev_cma *drm_fbdev_cma_init(struct drm_device *dev, } + /* disable all the possible outputs/crtcs before entering KMS mode */ + drm_helper_disable_unused_functions(dev); + ret = drm_fb_helper_initial_config(helper, preferred_bpp); if (ret < 0) { dev_err(dev->dev, "Failed to set inital hw configuration.\n"); @@ -370,8 +412,10 @@ void drm_fbdev_cma_fini(struct drm_fbdev_cma *fbdev_cma) framebuffer_release(info); } - if (fbdev_cma->fb) + if (fbdev_cma->fb) { + drm_framebuffer_unregister_private(&fbdev_cma->fb->fb); drm_fb_cma_destroy(&fbdev_cma->fb->fb); + } drm_fb_helper_fini(&fbdev_cma->fb_helper); kfree(fbdev_cma); @@ -386,8 +430,13 @@ EXPORT_SYMBOL_GPL(drm_fbdev_cma_fini); */ void drm_fbdev_cma_restore_mode(struct drm_fbdev_cma *fbdev_cma) { - if (fbdev_cma) + if (fbdev_cma) { + struct drm_device *dev = fbdev_cma->fb_helper.dev; + + drm_modeset_lock_all(dev); drm_fb_helper_restore_fbdev_mode(&fbdev_cma->fb_helper); + drm_modeset_unlock_all(dev); + } } EXPORT_SYMBOL_GPL(drm_fbdev_cma_restore_mode); |