1 files changed, 68 insertions, 109 deletions

diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c b/drivers/gpu/drm/omapdrm/omap_fbdev.c
index 6b08b137af1a..7b6396890681 100644
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
@@ -6,6 +6,7 @@
 
 #include <linux/fb.h>
 
+#include <drm/clients/drm_client_setup.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fb_helper.h>
@@ -13,6 +14,7 @@
 #include <drm/drm_fourcc.h>
 #include <drm/drm_framebuffer.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_managed.h>
 #include <drm/drm_util.h>
 
 #include "omap_drv.h"
@@ -26,10 +28,8 @@ module_param_named(ywrap, ywrap_enabled, bool, 0644);
  * fbdev funcs, to implement legacy fbdev interface on top of drm driver
  */
 
-#define to_omap_fbdev(x) container_of(x, struct omap_fbdev, base)
-
 struct omap_fbdev {
-	struct drm_fb_helper base;
+	struct drm_device *dev;
 	bool ywrap_enabled;
 
 	/* for deferred dmm roll when getting called in atomic ctx */
@@ -41,7 +41,7 @@ static struct drm_fb_helper *get_fb(struct fb_info *fbi);
 static void pan_worker(struct work_struct *work)
 {
 	struct omap_fbdev *fbdev = container_of(work, struct omap_fbdev, work);
-	struct drm_fb_helper *helper = &fbdev->base;
+	struct drm_fb_helper *helper = fbdev->dev->fb_helper;
 	struct fb_info *fbi = helper->info;
 	struct drm_gem_object *bo = drm_gem_fb_get_obj(helper->fb, 0);
 	int npages;
@@ -51,24 +51,29 @@ static void pan_worker(struct work_struct *work)
 	omap_gem_roll(bo, fbi->var.yoffset * npages);
 }
 
-static int omap_fbdev_pan_display(struct fb_var_screeninfo *var,
-		struct fb_info *fbi)
+FB_GEN_DEFAULT_DEFERRED_DMAMEM_OPS(omap_fbdev,
+				   drm_fb_helper_damage_range,
+				   drm_fb_helper_damage_area)
+
+static int omap_fbdev_pan_display(struct fb_var_screeninfo *var, struct fb_info *fbi)
 {
 	struct drm_fb_helper *helper = get_fb(fbi);
-	struct omap_fbdev *fbdev = to_omap_fbdev(helper);
+	struct omap_drm_private *priv;
+	struct omap_fbdev *fbdev;
 
 	if (!helper)
 		goto fallback;
 
+	priv = helper->dev->dev_private;
+	fbdev = priv->fbdev;
+
 	if (!fbdev->ywrap_enabled)
 		goto fallback;
 
-	if (drm_can_sleep()) {
+	if (drm_can_sleep())
 		pan_worker(&fbdev->work);
-	} else {
-		struct omap_drm_private *priv = helper->dev->dev_private;
+	else
 		queue_work(priv->wq, &fbdev->work);
-	}
 
 	return 0;
 
@@ -78,11 +83,9 @@ fallback:
 
 static int omap_fbdev_fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 {
-	struct drm_fb_helper *helper = info->par;
-	struct drm_framebuffer *fb = helper->fb;
-	struct drm_gem_object *bo = drm_gem_fb_get_obj(fb, 0);
+	vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
 
-	return drm_gem_mmap_obj(bo, omap_gem_mmap_size(bo), vma);
+	return fb_deferred_io_mmap(info, vma);
 }
 
 static void omap_fbdev_fb_destroy(struct fb_info *info)
@@ -90,10 +93,10 @@ static void omap_fbdev_fb_destroy(struct fb_info *info)
 	struct drm_fb_helper *helper = info->par;
 	struct drm_framebuffer *fb = helper->fb;
 	struct drm_gem_object *bo = drm_gem_fb_get_obj(fb, 0);
-	struct omap_fbdev *fbdev = to_omap_fbdev(helper);
 
 	DBG();
 
+	fb_deferred_io_cleanup(info);
 	drm_fb_helper_fini(helper);
 
 	omap_gem_unpin(bo);
@@ -101,29 +104,57 @@ static void omap_fbdev_fb_destroy(struct fb_info *info)
 
 	drm_client_release(&helper->client);
 	drm_fb_helper_unprepare(helper);
-	kfree(fbdev);
+	kfree(helper);
 }
 
+/*
+ * For now, we cannot use FB_DEFAULT_DEFERRED_OPS and fb_deferred_io_mmap()
+ * because we use write-combine.
+ */
 static const struct fb_ops omap_fb_ops = {
 	.owner = THIS_MODULE,
-	__FB_DEFAULT_DMAMEM_OPS_RDWR,
+	__FB_DEFAULT_DEFERRED_OPS_RDWR(omap_fbdev),
 	.fb_check_var	= drm_fb_helper_check_var,
 	.fb_set_par	= drm_fb_helper_set_par,
 	.fb_setcmap	= drm_fb_helper_setcmap,
 	.fb_blank	= drm_fb_helper_blank,
 	.fb_pan_display = omap_fbdev_pan_display,
-	__FB_DEFAULT_DMAMEM_OPS_DRAW,
+	__FB_DEFAULT_DEFERRED_OPS_DRAW(omap_fbdev),
 	.fb_ioctl	= drm_fb_helper_ioctl,
 	.fb_mmap	= omap_fbdev_fb_mmap,
 	.fb_destroy	= omap_fbdev_fb_destroy,
 };
 
-static int omap_fbdev_create(struct drm_fb_helper *helper,
-		struct drm_fb_helper_surface_size *sizes)
+static int omap_fbdev_dirty(struct drm_fb_helper *helper, struct drm_clip_rect *clip)
+{
+	if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2))
+		return 0;
+
+	if (helper->fb->funcs->dirty)
+		return helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1);
+
+	return 0;
+}
+
+static const struct drm_fb_helper_funcs omap_fbdev_helper_funcs = {
+	.fb_dirty = omap_fbdev_dirty,
+};
+
+static struct drm_fb_helper *get_fb(struct fb_info *fbi)
+{
+	if (!fbi || strcmp(fbi->fix.id, MODULE_NAME)) {
+		/* these are not the fb's you're looking for */
+		return NULL;
+	}
+	return fbi->par;
+}
+
+int omap_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
+				  struct drm_fb_helper_surface_size *sizes)
 {
-	struct omap_fbdev *fbdev = to_omap_fbdev(helper);
 	struct drm_device *dev = helper->dev;
 	struct omap_drm_private *priv = dev->dev_private;
+	struct omap_fbdev *fbdev = priv->fbdev;
 	struct drm_framebuffer *fb = NULL;
 	union omap_gem_size gsize;
 	struct fb_info *fbi = NULL;
@@ -201,6 +232,7 @@ static int omap_fbdev_create(struct drm_fb_helper *helper,
 
 	DBG("fbi=%p, dev=%p", fbi, dev);
 
+	helper->funcs = &omap_fbdev_helper_funcs;
 	helper->fb = fb;
 
 	fbi->fbops = &omap_fb_ops;
@@ -213,6 +245,15 @@ static int omap_fbdev_create(struct drm_fb_helper *helper,
 	fbi->fix.smem_start = dma_addr;
 	fbi->fix.smem_len = bo->size;
 
+	/* deferred I/O */
+	helper->fbdefio.delay = HZ / 20;
+	helper->fbdefio.deferred_io = drm_fb_helper_deferred_io;
+
+	fbi->fbdefio = &helper->fbdefio;
+	ret = fb_deferred_io_init(fbi);
+	if (ret)
+		goto fail;
+
 	/* if we have DMM, then we can use it for scrolling by just
 	 * shuffling pages around in DMM rather than doing sw blit.
 	 */
@@ -238,103 +279,21 @@ fail:
 	return ret;
 }
 
-static const struct drm_fb_helper_funcs omap_fb_helper_funcs = {
-	.fb_probe = omap_fbdev_create,
-};
-
-static struct drm_fb_helper *get_fb(struct fb_info *fbi)
-{
-	if (!fbi || strcmp(fbi->fix.id, MODULE_NAME)) {
-		/* these are not the fb's you're looking for */
-		return NULL;
-	}
-	return fbi->par;
-}
-
-/*
- * struct drm_client
- */
-
-static void omap_fbdev_client_unregister(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-
-	if (fb_helper->info) {
-		drm_fb_helper_unregister_info(fb_helper);
-	} else {
-		drm_client_release(&fb_helper->client);
-		drm_fb_helper_unprepare(fb_helper);
-		kfree(fb_helper);
-	}
-}
-
-static int omap_fbdev_client_restore(struct drm_client_dev *client)
-{
-	drm_fb_helper_lastclose(client->dev);
-
-	return 0;
-}
-
-static int omap_fbdev_client_hotplug(struct drm_client_dev *client)
-{
-	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-	struct drm_device *dev = client->dev;
-	int ret;
-
-	if (dev->fb_helper)
-		return drm_fb_helper_hotplug_event(dev->fb_helper);
-
-	ret = drm_fb_helper_init(dev, fb_helper);
-	if (ret)
-		goto err_drm_err;
-
-	ret = drm_fb_helper_initial_config(fb_helper);
-	if (ret)
-		goto err_drm_fb_helper_fini;
-
-	return 0;
-
-err_drm_fb_helper_fini:
-	drm_fb_helper_fini(fb_helper);
-err_drm_err:
-	drm_err(dev, "Failed to setup fbdev emulation (ret=%d)\n", ret);
-	return ret;
-}
-
-static const struct drm_client_funcs omap_fbdev_client_funcs = {
-	.owner		= THIS_MODULE,
-	.unregister	= omap_fbdev_client_unregister,
-	.restore	= omap_fbdev_client_restore,
-	.hotplug	= omap_fbdev_client_hotplug,
-};
-
 void omap_fbdev_setup(struct drm_device *dev)
 {
+	struct omap_drm_private *priv = dev->dev_private;
 	struct omap_fbdev *fbdev;
-	struct drm_fb_helper *helper;
-	int ret;
 
 	drm_WARN(dev, !dev->registered, "Device has not been registered.\n");
 	drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
 
-	fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL);
+	fbdev = drmm_kzalloc(dev, sizeof(*fbdev), GFP_KERNEL);
 	if (!fbdev)
 		return;
-	helper = &fbdev->base;
-
-	drm_fb_helper_prepare(dev, helper, 32, &omap_fb_helper_funcs);
-
-	ret = drm_client_init(dev, &helper->client, "fbdev", &omap_fbdev_client_funcs);
-	if (ret)
-		goto err_drm_client_init;
-
+	fbdev->dev = dev;
 	INIT_WORK(&fbdev->work, pan_worker);
 
-	drm_client_register(&helper->client);
+	priv->fbdev = fbdev;
 
-	return;
-
-err_drm_client_init:
-	drm_fb_helper_unprepare(helper);
-	kfree(fbdev);
+	drm_client_setup(dev, NULL);
 }