1 files changed, 181 insertions, 149 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c
index 99894a855ef0..00852ff5b247 100644
--- a/drivers/gpu/drm/i915/display/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/display/intel_fbdev.c
@@ -24,7 +24,6 @@
  *     David Airlie
  */
 
-#include <linux/async.h>
 #include <linux/console.h>
 #include <linux/delay.h>
 #include <linux/errno.h>
@@ -39,13 +38,14 @@
 #include <linux/vga_switcheroo.h>
 
 #include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem.h>
 #include <drm/drm_gem_framebuffer_helper.h>
 
-#include "gem/i915_gem_mman.h"
-
 #include "i915_drv.h"
+#include "intel_bo.h"
 #include "intel_display_types.h"
 #include "intel_fb.h"
 #include "intel_fb_pin.h"
@@ -58,7 +58,6 @@ struct intel_fbdev {
 	struct intel_framebuffer *fb;
 	struct i915_vma *vma;
 	unsigned long vma_flags;
-	async_cookie_t cookie;
 	int preferred_bpp;
 
 	/* Whether or not fbdev hpd processing is temporarily suspended */
@@ -129,12 +128,34 @@ static int intel_fbdev_pan_display(struct fb_var_screeninfo *var,
 static int intel_fbdev_mmap(struct fb_info *info, struct vm_area_struct *vma)
 {
 	struct intel_fbdev *fbdev = to_intel_fbdev(info->par);
-	struct drm_gem_object *bo = drm_gem_fb_get_obj(&fbdev->fb->base, 0);
-	struct drm_i915_gem_object *obj = to_intel_bo(bo);
+	struct drm_gem_object *obj = drm_gem_fb_get_obj(&fbdev->fb->base, 0);
 
-	return i915_gem_fb_mmap(obj, vma);
+	return intel_bo_fb_mmap(obj, vma);
 }
 
+static void intel_fbdev_fb_destroy(struct fb_info *info)
+{
+	struct drm_fb_helper *fb_helper = info->par;
+	struct intel_fbdev *ifbdev = container_of(fb_helper, struct intel_fbdev, helper);
+
+	drm_fb_helper_fini(&ifbdev->helper);
+
+	/*
+	 * We rely on the object-free to release the VMA pinning for
+	 * the info->screen_base mmaping. Leaking the VMA is simpler than
+	 * trying to rectify all the possible error paths leading here.
+	 */
+	intel_fb_unpin_vma(ifbdev->vma, ifbdev->vma_flags);
+	drm_framebuffer_remove(&ifbdev->fb->base);
+
+	drm_client_release(&fb_helper->client);
+	drm_fb_helper_unprepare(&ifbdev->helper);
+	kfree(ifbdev);
+}
+
+__diag_push();
+__diag_ignore_all("-Woverride-init", "Allow field initialization overrides for fb ops");
+
 static const struct fb_ops intelfb_ops = {
 	.owner = THIS_MODULE,
 	__FB_DEFAULT_DEFERRED_OPS_RDWR(intel_fbdev),
@@ -144,16 +165,18 @@ static const struct fb_ops intelfb_ops = {
 	.fb_pan_display = intel_fbdev_pan_display,
 	__FB_DEFAULT_DEFERRED_OPS_DRAW(intel_fbdev),
 	.fb_mmap = intel_fbdev_mmap,
+	.fb_destroy = intel_fbdev_fb_destroy,
 };
 
+__diag_pop();
+
 static int intelfb_create(struct drm_fb_helper *helper,
 			  struct drm_fb_helper_surface_size *sizes)
 {
 	struct intel_fbdev *ifbdev = to_intel_fbdev(helper);
-	struct intel_framebuffer *intel_fb = ifbdev->fb;
+	struct intel_framebuffer *fb = ifbdev->fb;
 	struct drm_device *dev = helper->dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
-	struct pci_dev *pdev = to_pci_dev(dev_priv->drm.dev);
 	const struct i915_gtt_view view = {
 		.type = I915_GTT_VIEW_NORMAL,
 	};
@@ -162,7 +185,7 @@ static int intelfb_create(struct drm_fb_helper *helper,
 	struct i915_vma *vma;
 	unsigned long flags = 0;
 	bool prealloc = false;
-	struct drm_i915_gem_object *obj;
+	struct drm_gem_object *obj;
 	int ret;
 
 	mutex_lock(&ifbdev->hpd_lock);
@@ -171,30 +194,30 @@ static int intelfb_create(struct drm_fb_helper *helper,
 	if (ret)
 		return ret;
 
-	if (intel_fb &&
-	    (sizes->fb_width > intel_fb->base.width ||
-	     sizes->fb_height > intel_fb->base.height)) {
+	ifbdev->fb = NULL;
+
+	if (fb &&
+	    (sizes->fb_width > fb->base.width ||
+	     sizes->fb_height > fb->base.height)) {
 		drm_dbg_kms(&dev_priv->drm,
 			    "BIOS fb too small (%dx%d), we require (%dx%d),"
 			    " releasing it\n",
-			    intel_fb->base.width, intel_fb->base.height,
+			    fb->base.width, fb->base.height,
 			    sizes->fb_width, sizes->fb_height);
-		drm_framebuffer_put(&intel_fb->base);
-		intel_fb = ifbdev->fb = NULL;
+		drm_framebuffer_put(&fb->base);
+		fb = NULL;
 	}
-	if (!intel_fb || drm_WARN_ON(dev, !intel_fb_obj(&intel_fb->base))) {
-		struct drm_framebuffer *fb;
+	if (!fb || drm_WARN_ON(dev, !intel_fb_bo(&fb->base))) {
 		drm_dbg_kms(&dev_priv->drm,
 			    "no BIOS fb, allocating a new one\n");
 		fb = intel_fbdev_fb_alloc(helper, sizes);
 		if (IS_ERR(fb))
 			return PTR_ERR(fb);
-		intel_fb = ifbdev->fb = to_intel_framebuffer(fb);
 	} else {
 		drm_dbg_kms(&dev_priv->drm, "re-using BIOS fb\n");
 		prealloc = true;
-		sizes->fb_width = intel_fb->base.width;
-		sizes->fb_height = intel_fb->base.height;
+		sizes->fb_width = fb->base.width;
+		sizes->fb_height = fb->base.height;
 	}
 
 	wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
@@ -203,8 +226,9 @@ static int intelfb_create(struct drm_fb_helper *helper,
 	 * This also validates that any existing fb inherited from the
 	 * BIOS is suitable for own access.
 	 */
-	vma = intel_pin_and_fence_fb_obj(&ifbdev->fb->base, false,
-					 &view, false, &flags);
+	vma = intel_fb_pin_to_ggtt(&fb->base, &view,
+				   fb->min_alignment, 0,
+				   false, &flags);
 	if (IS_ERR(vma)) {
 		ret = PTR_ERR(vma);
 		goto out_unlock;
@@ -217,11 +241,11 @@ static int intelfb_create(struct drm_fb_helper *helper,
 		goto out_unpin;
 	}
 
-	ifbdev->helper.fb = &ifbdev->fb->base;
+	ifbdev->helper.fb = &fb->base;
 
 	info->fbops = &intelfb_ops;
 
-	obj = intel_fb_obj(&intel_fb->base);
+	obj = intel_fb_bo(&fb->base);
 
 	ret = intel_fbdev_fb_fill_info(dev_priv, info, obj, vma);
 	if (ret)
@@ -233,23 +257,24 @@ static int intelfb_create(struct drm_fb_helper *helper,
 	 * If the object is stolen however, it will be full of whatever
 	 * garbage was left in there.
 	 */
-	if (!i915_gem_object_is_shmem(obj) && !prealloc)
+	if (!intel_bo_is_shmem(obj) && !prealloc)
 		memset_io(info->screen_base, 0, info->screen_size);
 
 	/* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
 
 	drm_dbg_kms(&dev_priv->drm, "allocated %dx%d fb: 0x%08x\n",
-		    ifbdev->fb->base.width, ifbdev->fb->base.height,
+		    fb->base.width, fb->base.height,
 		    i915_ggtt_offset(vma));
+	ifbdev->fb = fb;
 	ifbdev->vma = vma;
 	ifbdev->vma_flags = flags;
 
 	intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
-	vga_switcheroo_client_fb_set(pdev, info);
+
 	return 0;
 
 out_unpin:
-	intel_unpin_fb_vma(vma, flags);
+	intel_fb_unpin_vma(vma, flags);
 out_unlock:
 	intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
 	return ret;
@@ -271,25 +296,6 @@ static const struct drm_fb_helper_funcs intel_fb_helper_funcs = {
 	.fb_dirty = intelfb_dirty,
 };
 
-static void intel_fbdev_destroy(struct intel_fbdev *ifbdev)
-{
-	/* We rely on the object-free to release the VMA pinning for
-	 * the info->screen_base mmaping. Leaking the VMA is simpler than
-	 * trying to rectify all the possible error paths leading here.
-	 */
-
-	drm_fb_helper_fini(&ifbdev->helper);
-
-	if (ifbdev->vma)
-		intel_unpin_fb_vma(ifbdev->vma, ifbdev->vma_flags);
-
-	if (ifbdev->fb)
-		drm_framebuffer_remove(&ifbdev->fb->base);
-
-	drm_fb_helper_unprepare(&ifbdev->helper);
-	kfree(ifbdev);
-}
-
 /*
  * Build an intel_fbdev struct using a BIOS allocated framebuffer, if possible.
  * The core display code will have read out the current plane configuration,
@@ -315,8 +321,7 @@ static bool intel_fbdev_init_bios(struct drm_device *dev,
 			to_intel_plane(crtc->base.primary);
 		struct intel_plane_state *plane_state =
 			to_intel_plane_state(plane->base.state);
-		struct drm_i915_gem_object *obj =
-			intel_fb_obj(plane_state->uapi.fb);
+		struct drm_gem_object *obj = intel_fb_bo(plane_state->uapi.fb);
 
 		if (!crtc_state->uapi.active) {
 			drm_dbg_kms(&i915->drm,
@@ -332,12 +337,12 @@ static bool intel_fbdev_init_bios(struct drm_device *dev,
 			continue;
 		}
 
-		if (intel_bo_to_drm_bo(obj)->size > max_size) {
+		if (obj->size > max_size) {
 			drm_dbg_kms(&i915->drm,
 				    "found possible fb from [PLANE:%d:%s]\n",
 				    plane->base.base.id, plane->base.name);
 			fb = to_intel_framebuffer(plane_state->uapi.fb);
-			max_size = intel_bo_to_drm_bo(obj)->size;
+			max_size = obj->size;
 		}
 	}
 
@@ -453,93 +458,6 @@ static void intel_fbdev_suspend_worker(struct work_struct *work)
 				true);
 }
 
-int intel_fbdev_init(struct drm_device *dev)
-{
-	struct drm_i915_private *dev_priv = to_i915(dev);
-	struct intel_fbdev *ifbdev;
-	int ret;
-
-	if (drm_WARN_ON(dev, !HAS_DISPLAY(dev_priv)))
-		return -ENODEV;
-
-	ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL);
-	if (ifbdev == NULL)
-		return -ENOMEM;
-
-	mutex_init(&ifbdev->hpd_lock);
-	drm_fb_helper_prepare(dev, &ifbdev->helper, 32, &intel_fb_helper_funcs);
-
-	if (intel_fbdev_init_bios(dev, ifbdev))
-		ifbdev->helper.preferred_bpp = ifbdev->preferred_bpp;
-	else
-		ifbdev->preferred_bpp = ifbdev->helper.preferred_bpp;
-
-	ret = drm_fb_helper_init(dev, &ifbdev->helper);
-	if (ret) {
-		kfree(ifbdev);
-		return ret;
-	}
-
-	dev_priv->display.fbdev.fbdev = ifbdev;
-	INIT_WORK(&dev_priv->display.fbdev.suspend_work, intel_fbdev_suspend_worker);
-
-	return 0;
-}
-
-static void intel_fbdev_initial_config(void *data, async_cookie_t cookie)
-{
-	struct intel_fbdev *ifbdev = data;
-
-	/* Due to peculiar init order wrt to hpd handling this is separate. */
-	if (drm_fb_helper_initial_config(&ifbdev->helper))
-		intel_fbdev_unregister(to_i915(ifbdev->helper.dev));
-}
-
-void intel_fbdev_initial_config_async(struct drm_i915_private *dev_priv)
-{
-	struct intel_fbdev *ifbdev = dev_priv->display.fbdev.fbdev;
-
-	if (!ifbdev)
-		return;
-
-	ifbdev->cookie = async_schedule(intel_fbdev_initial_config, ifbdev);
-}
-
-static void intel_fbdev_sync(struct intel_fbdev *ifbdev)
-{
-	if (!ifbdev->cookie)
-		return;
-
-	/* Only serialises with all preceding async calls, hence +1 */
-	async_synchronize_cookie(ifbdev->cookie + 1);
-	ifbdev->cookie = 0;
-}
-
-void intel_fbdev_unregister(struct drm_i915_private *dev_priv)
-{
-	struct intel_fbdev *ifbdev = dev_priv->display.fbdev.fbdev;
-
-	if (!ifbdev)
-		return;
-
-	intel_fbdev_set_suspend(&dev_priv->drm, FBINFO_STATE_SUSPENDED, true);
-
-	if (!current_is_async())
-		intel_fbdev_sync(ifbdev);
-
-	drm_fb_helper_unregister_info(&ifbdev->helper);
-}
-
-void intel_fbdev_fini(struct drm_i915_private *dev_priv)
-{
-	struct intel_fbdev *ifbdev = fetch_and_zero(&dev_priv->display.fbdev.fbdev);
-
-	if (!ifbdev)
-		return;
-
-	intel_fbdev_destroy(ifbdev);
-}
-
 /* Suspends/resumes fbdev processing of incoming HPD events. When resuming HPD
  * processing, fbdev will perform a full connector reprobe if a hotplug event
  * was received while HPD was suspended.
@@ -612,7 +530,7 @@ void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous
 	 * full of whatever garbage was left in there.
 	 */
 	if (state == FBINFO_STATE_RUNNING &&
-	    !i915_gem_object_is_shmem(intel_fb_obj(&ifbdev->fb->base)))
+	    !intel_bo_is_shmem(intel_fb_bo(&ifbdev->fb->base)))
 		memset_io(info->screen_base, 0, info->screen_size);
 
 	drm_fb_helper_set_suspend(&ifbdev->helper, state);
@@ -622,15 +540,13 @@ set_suspend:
 	intel_fbdev_hpd_set_suspend(dev_priv, state);
 }
 
-void intel_fbdev_output_poll_changed(struct drm_device *dev)
+static int intel_fbdev_output_poll_changed(struct drm_device *dev)
 {
 	struct intel_fbdev *ifbdev = to_i915(dev)->display.fbdev.fbdev;
 	bool send_hpd;
 
 	if (!ifbdev)
-		return;
-
-	intel_fbdev_sync(ifbdev);
+		return -EINVAL;
 
 	mutex_lock(&ifbdev->hpd_lock);
 	send_hpd = !ifbdev->hpd_suspended;
@@ -639,21 +555,137 @@ void intel_fbdev_output_poll_changed(struct drm_device *dev)
 
 	if (send_hpd && (ifbdev->vma || ifbdev->helper.deferred_setup))
 		drm_fb_helper_hotplug_event(&ifbdev->helper);
+
+	return 0;
 }
 
-void intel_fbdev_restore_mode(struct drm_i915_private *dev_priv)
+static int intel_fbdev_restore_mode(struct drm_i915_private *dev_priv)
 {
 	struct intel_fbdev *ifbdev = dev_priv->display.fbdev.fbdev;
+	int ret;
 
 	if (!ifbdev)
-		return;
+		return -EINVAL;
 
-	intel_fbdev_sync(ifbdev);
 	if (!ifbdev->vma)
+		return -ENOMEM;
+
+	ret = drm_fb_helper_restore_fbdev_mode_unlocked(&ifbdev->helper);
+	if (ret)
+		return ret;
+
+	intel_fbdev_invalidate(ifbdev);
+
+	return 0;
+}
+
+/*
+ * Fbdev client and struct drm_client_funcs
+ */
+
+static void intel_fbdev_client_unregister(struct drm_client_dev *client)
+{
+	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
+	struct drm_device *dev = fb_helper->dev;
+	struct pci_dev *pdev = to_pci_dev(dev->dev);
+
+	if (fb_helper->info) {
+		vga_switcheroo_client_fb_set(pdev, NULL);
+		drm_fb_helper_unregister_info(fb_helper);
+	} else {
+		drm_fb_helper_unprepare(fb_helper);
+		drm_client_release(&fb_helper->client);
+		kfree(fb_helper);
+	}
+}
+
+static int intel_fbdev_client_restore(struct drm_client_dev *client)
+{
+	struct drm_i915_private *dev_priv = to_i915(client->dev);
+	int ret;
+
+	ret = intel_fbdev_restore_mode(dev_priv);
+	if (ret)
+		return ret;
+
+	vga_switcheroo_process_delayed_switch();
+
+	return 0;
+}
+
+static int intel_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;
+	struct pci_dev *pdev = to_pci_dev(dev->dev);
+	int ret;
+
+	if (dev->fb_helper)
+		return intel_fbdev_output_poll_changed(dev);
+
+	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;
+
+	vga_switcheroo_client_fb_set(pdev, fb_helper->info);
+
+	return 0;
+
+err_drm_fb_helper_fini:
+	drm_fb_helper_fini(fb_helper);
+err_drm_err:
+	drm_err(dev, "Failed to setup i915 fbdev emulation (ret=%d)\n", ret);
+	return ret;
+}
+
+static const struct drm_client_funcs intel_fbdev_client_funcs = {
+	.owner		= THIS_MODULE,
+	.unregister	= intel_fbdev_client_unregister,
+	.restore	= intel_fbdev_client_restore,
+	.hotplug	= intel_fbdev_client_hotplug,
+};
+
+void intel_fbdev_setup(struct drm_i915_private *i915)
+{
+	struct drm_device *dev = &i915->drm;
+	struct intel_fbdev *ifbdev;
+	int ret;
+
+	if (!HAS_DISPLAY(i915))
 		return;
 
-	if (drm_fb_helper_restore_fbdev_mode_unlocked(&ifbdev->helper) == 0)
-		intel_fbdev_invalidate(ifbdev);
+	ifbdev = kzalloc(sizeof(*ifbdev), GFP_KERNEL);
+	if (!ifbdev)
+		return;
+	drm_fb_helper_prepare(dev, &ifbdev->helper, 32, &intel_fb_helper_funcs);
+
+	i915->display.fbdev.fbdev = ifbdev;
+	INIT_WORK(&i915->display.fbdev.suspend_work, intel_fbdev_suspend_worker);
+	mutex_init(&ifbdev->hpd_lock);
+	if (intel_fbdev_init_bios(dev, ifbdev))
+		ifbdev->helper.preferred_bpp = ifbdev->preferred_bpp;
+	else
+		ifbdev->preferred_bpp = ifbdev->helper.preferred_bpp;
+
+	ret = drm_client_init(dev, &ifbdev->helper.client, "intel-fbdev",
+			      &intel_fbdev_client_funcs);
+	if (ret) {
+		drm_err(dev, "Failed to register client: %d\n", ret);
+		goto err_drm_fb_helper_unprepare;
+	}
+
+	drm_client_register(&ifbdev->helper.client);
+
+	return;
+
+err_drm_fb_helper_unprepare:
+	drm_fb_helper_unprepare(&ifbdev->helper);
+	mutex_destroy(&ifbdev->hpd_lock);
+	kfree(ifbdev);
 }
 
 struct intel_framebuffer *intel_fbdev_framebuffer(struct intel_fbdev *fbdev)