[RESEND PATCH 00/14] QXL atomic modesetting

[RESEND PATCH 00/14] QXL atomic modesetting

[Gabriel Krisman Bertazi]

Hi,

This is a resend of the qxl atomic modesetting patchset to include the reviewed-by tags from Gustavo and rebase on top of the tip of drm-misc-next.

This series implements support for Atomic Modesetting in the QXL driver.
The first 4 patches in the series are some cleanups to prepare the
ground, while the rest implement Atomic in 3 phases, as suggested by
Daniel's blog post[1].

Testing was done with the X server, igt, libdrm testsuit and some custom
code that I can share if requested.  I hope this covers the main use
cases.

[1] <http://blog.ffwll.ch/2014/11/atomic-modeset-support-for-kms-drivers.html>

Gabriel Krisman Bertazi (14):
  drm: qxl: Drop device flags attribute
  drm: qxl: Consolidate bo reservation when pinning
  drm: qxl: Don't initialize vblank support
  drm: qxl: Expose creation of universal primary plane
  drm: qxl: Atomic phase 1: convert cursor to universal plane
  drm: qxl: Atomic phase 1: Use drm_plane_helpers for primary plane
  drm: qxl: Atomic phase 1: Implement mode_set_nofb
  drm: qxl: Atomic phase 1: Don't unpin primary when disabling crtc
  drm: qxl: Atomic phase 2: Wire up state object handlers
  drm: qxl: Atomic phase 2: Use drm_atomic_set_fb_for_plane helper
  drm: qxl: Atomic phase 3: Use atomic handlers for planes
  drm: qxl: Atomic phase 3: Wire up atomic set_config helper
  drm: qxl: Atomic phase 3: Wire up atomic page_flip helper
  drm: qxl: Enable atomic modesetting ioctl

 drivers/gpu/drm/qxl/qxl_display.c | 789 ++++++++++++++++++--------------------
 drivers/gpu/drm/qxl/qxl_drv.c     |  13 +-
 drivers/gpu/drm/qxl/qxl_drv.h     |   8 +-
 drivers/gpu/drm/qxl/qxl_fb.c      |  25 +-
 drivers/gpu/drm/qxl/qxl_kms.c     |   5 +-
 drivers/gpu/drm/qxl/qxl_object.c  |  41 +-
 6 files changed, 434 insertions(+), 447 deletions(-)

--
2.11.0
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[RESEND PATCH 01/14] drm: qxl: Drop device flags attribute

[Gabriel Krisman Bertazi]

There are no device specific flags that we need to keep track of here.
Let it vanish.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
---
 drivers/gpu/drm/qxl/qxl_drv.c | 2 +-
 drivers/gpu/drm/qxl/qxl_drv.h | 3 +--
 drivers/gpu/drm/qxl/qxl_kms.c | 5 +----
 3 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index 48d51a2f3bd8..e141db9c6211 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -79,7 +79,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (ret)
 		goto free_dev;
 
-	ret = qxl_device_init(qdev, &qxl_driver, pdev, ent->driver_data);
+	ret = qxl_device_init(qdev, &qxl_driver, pdev);
 	if (ret)
 		goto disable_pci;
 
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 785c17b56f73..647f0926cb50 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -243,7 +243,6 @@ struct qxl_device;
 
 struct qxl_device {
 	struct drm_device ddev;
-	unsigned long flags;
 
 	resource_size_t vram_base, vram_size;
 	resource_size_t surfaceram_base, surfaceram_size;
@@ -335,7 +334,7 @@ extern const struct drm_ioctl_desc qxl_ioctls[];
 extern int qxl_max_ioctl;
 
 int qxl_device_init(struct qxl_device *qdev, struct drm_driver *drv,
-		    struct pci_dev *pdev, unsigned long flags);
+		    struct pci_dev *pdev);
 void qxl_device_fini(struct qxl_device *qdev);
 
 int qxl_modeset_init(struct qxl_device *qdev);
diff --git a/drivers/gpu/drm/qxl/qxl_kms.c b/drivers/gpu/drm/qxl/qxl_kms.c
index 2dcd5c14cb56..2b1e1f3c825d 100644
--- a/drivers/gpu/drm/qxl/qxl_kms.c
+++ b/drivers/gpu/drm/qxl/qxl_kms.c
@@ -117,8 +117,7 @@ static void qxl_gc_work(struct work_struct *work)
 
 int qxl_device_init(struct qxl_device *qdev,
 		    struct drm_driver *drv,
-		    struct pci_dev *pdev,
-		    unsigned long flags)
+		    struct pci_dev *pdev)
 {
 	int r, sb;
 
@@ -130,8 +129,6 @@ int qxl_device_init(struct qxl_device *qdev,
 	pci_set_drvdata(pdev, &qdev->ddev);
 	qdev->ddev.dev_private = qdev;
 
-	qdev->flags = flags;
-
 	mutex_init(&qdev->gem.mutex);
 	mutex_init(&qdev->update_area_mutex);
 	mutex_init(&qdev->release_mutex);
-- 
2.11.0

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[RESEND PATCH 02/14] drm: qxl: Consolidate bo reservation when pinning

[Gabriel Krisman Bertazi]

Every attempt to pin/unpin objects in memory requires
qxl_bo_reserve/unreserve calls around the pinning operation to protect
the object from concurrent access, which causes that call sequence to be
reproduced every place where pinning is needed.  In some cases, that
sequence was not executed correctly, resulting in potential unprotected
pinning operations.

This commit encapsulates the reservation inside a new wrapper to make
sure it is always handled properly.  In cases where reservation must be
done beforehand, for some reason, one can use the unprotected version
__qxl_bo_pin/unpin.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
---
 drivers/gpu/drm/qxl/qxl_display.c | 52 ++++++---------------------------------
 drivers/gpu/drm/qxl/qxl_fb.c      | 25 ++++++-------------
 drivers/gpu/drm/qxl/qxl_object.c  | 41 ++++++++++++++++++++++++++++--
 3 files changed, 54 insertions(+), 64 deletions(-)

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 2ce805a7ce5e..0957db17de4d 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -286,11 +286,7 @@ static int qxl_crtc_page_flip(struct drm_crtc *crtc,
 	bo_old->is_primary = false;
 	bo->is_primary = true;
 
-	ret = qxl_bo_reserve(bo, false);
-	if (ret)
-		return ret;
 	ret = qxl_bo_pin(bo, bo->type, NULL);
-	qxl_bo_unreserve(bo);
 	if (ret)
 		return ret;
 
@@ -306,11 +302,7 @@ static int qxl_crtc_page_flip(struct drm_crtc *crtc,
 	}
 	drm_crtc_vblank_put(crtc);
 
-	ret = qxl_bo_reserve(bo, false);
-	if (!ret) {
-		qxl_bo_unpin(bo);
-		qxl_bo_unreserve(bo);
-	}
+	qxl_bo_unpin(bo);
 
 	return 0;
 }
@@ -417,12 +409,7 @@ static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
 
 	user_bo = gem_to_qxl_bo(obj);
 
-	ret = qxl_bo_reserve(user_bo, false);
-	if (ret)
-		goto out_unref;
-
 	ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
-	qxl_bo_unreserve(user_bo);
 	if (ret)
 		goto out_unref;
 
@@ -485,11 +472,8 @@ static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
 	qxl_release_fence_buffer_objects(release);
 
 	/* finish with the userspace bo */
-	ret = qxl_bo_reserve(user_bo, false);
-	if (!ret) {
-		qxl_bo_unpin(user_bo);
-		qxl_bo_unreserve(user_bo);
-	}
+	qxl_bo_unpin(user_bo);
+
 	drm_gem_object_unreference_unlocked(obj);
 
 	qxl_bo_unref (&qcrtc->cursor_bo);
@@ -747,15 +731,10 @@ static int qxl_crtc_mode_set(struct drm_crtc *crtc,
 		return -EINVAL;
         }
 
-	ret = qxl_bo_reserve(bo, false);
-	if (ret != 0)
-		return ret;
 	ret = qxl_bo_pin(bo, bo->type, NULL);
-	if (ret != 0) {
-		qxl_bo_unreserve(bo);
+	if (ret != 0)
 		return -EINVAL;
-	}
-	qxl_bo_unreserve(bo);
+
 	if (recreate_primary) {
 		qxl_io_destroy_primary(qdev);
 		qxl_io_log(qdev,
@@ -781,9 +760,7 @@ static int qxl_crtc_mode_set(struct drm_crtc *crtc,
 
 	if (old_bo && old_bo != bo) {
 		old_bo->is_primary = false;
-		ret = qxl_bo_reserve(old_bo, false);
 		qxl_bo_unpin(old_bo);
-		qxl_bo_unreserve(old_bo);
 	}
 
 	qxl_monitors_config_set(qdev, qcrtc->index, x, y,
@@ -812,10 +789,8 @@ static void qxl_crtc_disable(struct drm_crtc *crtc)
 	if (crtc->primary->fb) {
 		struct qxl_framebuffer *qfb = to_qxl_framebuffer(crtc->primary->fb);
 		struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
-		int ret;
-		ret = qxl_bo_reserve(bo, false);
+
 		qxl_bo_unpin(bo);
-		qxl_bo_unreserve(bo);
 		crtc->primary->fb = NULL;
 	}
 
@@ -1144,17 +1119,9 @@ int qxl_create_monitors_object(struct qxl_device *qdev)
 	}
 	qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
 
-	ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
-	if (ret)
-		return ret;
-
 	ret = qxl_bo_pin(qdev->monitors_config_bo, QXL_GEM_DOMAIN_VRAM, NULL);
-	if (ret) {
-		qxl_bo_unreserve(qdev->monitors_config_bo);
+	if (ret)
 		return ret;
-	}
-
-	qxl_bo_unreserve(qdev->monitors_config_bo);
 
 	qxl_bo_kmap(qdev->monitors_config_bo, NULL);
 
@@ -1175,13 +1142,10 @@ int qxl_destroy_monitors_object(struct qxl_device *qdev)
 	qdev->ram_header->monitors_config = 0;
 
 	qxl_bo_kunmap(qdev->monitors_config_bo);
-	ret = qxl_bo_reserve(qdev->monitors_config_bo, false);
+	ret = qxl_bo_unpin(qdev->monitors_config_bo);
 	if (ret)
 		return ret;
 
-	qxl_bo_unpin(qdev->monitors_config_bo);
-	qxl_bo_unreserve(qdev->monitors_config_bo);
-
 	qxl_bo_unref(&qdev->monitors_config_bo);
 	return 0;
 }
diff --git a/drivers/gpu/drm/qxl/qxl_fb.c b/drivers/gpu/drm/qxl/qxl_fb.c
index 44e0619083fc..35124737666e 100644
--- a/drivers/gpu/drm/qxl/qxl_fb.c
+++ b/drivers/gpu/drm/qxl/qxl_fb.c
@@ -90,14 +90,10 @@ static struct fb_ops qxlfb_ops = {
 static void qxlfb_destroy_pinned_object(struct drm_gem_object *gobj)
 {
 	struct qxl_bo *qbo = gem_to_qxl_bo(gobj);
-	int ret;
 
-	ret = qxl_bo_reserve(qbo, false);
-	if (likely(ret == 0)) {
-		qxl_bo_kunmap(qbo);
-		qxl_bo_unpin(qbo);
-		qxl_bo_unreserve(qbo);
-	}
+	qxl_bo_kunmap(qbo);
+	qxl_bo_unpin(qbo);
+
 	drm_gem_object_unreference_unlocked(gobj);
 }
 
@@ -148,16 +144,13 @@ static int qxlfb_create_pinned_object(struct qxl_fbdev *qfbdev,
 	qbo->surf.height = mode_cmd->height;
 	qbo->surf.stride = mode_cmd->pitches[0];
 	qbo->surf.format = SPICE_SURFACE_FMT_32_xRGB;
-	ret = qxl_bo_reserve(qbo, false);
-	if (unlikely(ret != 0))
-		goto out_unref;
+
 	ret = qxl_bo_pin(qbo, QXL_GEM_DOMAIN_SURFACE, NULL);
 	if (ret) {
-		qxl_bo_unreserve(qbo);
 		goto out_unref;
 	}
 	ret = qxl_bo_kmap(qbo, NULL);
-	qxl_bo_unreserve(qbo); /* unreserve, will be mmaped */
+
 	if (ret)
 		goto out_unref;
 
@@ -322,12 +315,8 @@ static int qxlfb_create(struct qxl_fbdev *qfbdev,
 
 out_unref:
 	if (qbo) {
-		ret = qxl_bo_reserve(qbo, false);
-		if (likely(ret == 0)) {
-			qxl_bo_kunmap(qbo);
-			qxl_bo_unpin(qbo);
-			qxl_bo_unreserve(qbo);
-		}
+		qxl_bo_kunmap(qbo);
+		qxl_bo_unpin(qbo);
 	}
 	if (fb && ret) {
 		drm_gem_object_unreference_unlocked(gobj);
diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c
index dbc13510a1f8..9a7eef7dd604 100644
--- a/drivers/gpu/drm/qxl/qxl_object.c
+++ b/drivers/gpu/drm/qxl/qxl_object.c
@@ -221,7 +221,7 @@ struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo)
 	return bo;
 }
 
-int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr)
+int __qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr)
 {
 	struct drm_device *ddev = bo->gem_base.dev;
 	int r;
@@ -244,7 +244,7 @@ int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr)
 	return r;
 }
 
-int qxl_bo_unpin(struct qxl_bo *bo)
+int __qxl_bo_unpin(struct qxl_bo *bo)
 {
 	struct drm_device *ddev = bo->gem_base.dev;
 	int r, i;
@@ -264,6 +264,43 @@ int qxl_bo_unpin(struct qxl_bo *bo)
 	return r;
 }
 
+
+/*
+ * Reserve the BO before pinning the object.  If the BO was reserved
+ * beforehand, use the internal version directly __qxl_bo_pin.
+ *
+ */
+int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr)
+{
+	int r;
+
+	r = qxl_bo_reserve(bo, false);
+	if (r)
+		return r;
+
+	r = __qxl_bo_pin(bo, bo->type, NULL);
+	qxl_bo_unreserve(bo);
+	return r;
+}
+
+/*
+ * Reserve the BO before pinning the object.  If the BO was reserved
+ * beforehand, use the internal version directly __qxl_bo_unpin.
+ *
+ */
+int qxl_bo_unpin(struct qxl_bo *bo)
+{
+	int r;
+
+	r = qxl_bo_reserve(bo, false);
+	if (r)
+		return r;
+
+	r = __qxl_bo_unpin(bo);
+	qxl_bo_unreserve(bo);
+	return r;
+}
+
 void qxl_bo_force_delete(struct qxl_device *qdev)
 {
 	struct qxl_bo *bo, *n;
-- 
2.11.0

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[RESEND PATCH 03/14] drm: qxl: Don't initialize vblank support

[Gabriel Krisman Bertazi]

qxl don't have support for hardware vblanks so we can't initialize it
here, otherwise we risk getting stuck in drm_wait_one_vblank.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
---
 drivers/gpu/drm/qxl/qxl_display.c | 20 --------------------
 drivers/gpu/drm/qxl/qxl_drv.c     |  8 +-------
 2 files changed, 1 insertion(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 0957db17de4d..a82fc3678b8e 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -293,14 +293,11 @@ static int qxl_crtc_page_flip(struct drm_crtc *crtc,
 	qxl_draw_dirty_fb(qdev, qfb_src, bo, 0, 0,
 			  &norect, one_clip_rect, inc);
 
-	drm_crtc_vblank_get(crtc);
-
 	if (event) {
 		spin_lock_irqsave(&dev->event_lock, flags);
 		drm_crtc_send_vblank_event(crtc, event);
 		spin_unlock_irqrestore(&dev->event_lock, flags);
 	}
-	drm_crtc_vblank_put(crtc);
 
 	qxl_bo_unpin(bo);
 
@@ -532,29 +529,12 @@ static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
 	return 0;
 }
 
-static u32 qxl_noop_get_vblank_counter(struct drm_crtc *crtc)
-{
-	return 0;
-}
-
-static int qxl_noop_enable_vblank(struct drm_crtc *crtc)
-{
-	return 0;
-}
-
-static void qxl_noop_disable_vblank(struct drm_crtc *crtc)
-{
-}
-
 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 	.cursor_set2 = qxl_crtc_cursor_set2,
 	.cursor_move = qxl_crtc_cursor_move,
 	.set_config = drm_crtc_helper_set_config,
 	.destroy = qxl_crtc_destroy,
 	.page_flip = qxl_crtc_page_flip,
-	.get_vblank_counter = qxl_noop_get_vblank_counter,
-	.enable_vblank = qxl_noop_enable_vblank,
-	.disable_vblank = qxl_noop_disable_vblank,
 };
 
 void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index e141db9c6211..67e94f4f3ce8 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -83,13 +83,9 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (ret)
 		goto disable_pci;
 
-	ret = drm_vblank_init(&qdev->ddev, 1);
-	if (ret)
-		goto unload;
-
 	ret = qxl_modeset_init(qdev);
 	if (ret)
-		goto vblank_cleanup;
+		goto unload;
 
 	drm_kms_helper_poll_init(&qdev->ddev);
 
@@ -102,8 +98,6 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 modeset_cleanup:
 	qxl_modeset_fini(qdev);
-vblank_cleanup:
-	drm_vblank_cleanup(&qdev->ddev);
 unload:
 	qxl_device_fini(qdev);
 disable_pci:
-- 
2.11.0

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[RESEND PATCH 04/14] drm: qxl: Expose creation of universal primary plane

[Gabriel Krisman Bertazi]

Let's expose the primary plane initialization inside the qxl driver in
preparation for universal planes and atomic.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
---
 drivers/gpu/drm/qxl/qxl_display.c | 71 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 70 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index a82fc3678b8e..04f021437c25 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -788,18 +788,87 @@ static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 	.commit = qxl_crtc_commit,
 };
 
+static const uint32_t qxl_primary_plane_formats[] = {
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_ARGB8888,
+};
+
+static const struct drm_plane_funcs qxl_primary_plane_funcs = {
+	.update_plane	= drm_primary_helper_update,
+	.disable_plane	= drm_primary_helper_disable,
+	.destroy	= drm_primary_helper_destroy,
+};
+
+static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
+					  unsigned int possible_crtcs,
+					  enum drm_plane_type type)
+{
+	const struct drm_plane_helper_funcs *helper_funcs = NULL;
+	struct drm_plane *plane;
+	const struct drm_plane_funcs *funcs;
+	const uint32_t *formats;
+	int num_formats;
+	int err;
+
+	if (type == DRM_PLANE_TYPE_PRIMARY) {
+		funcs = &qxl_primary_plane_funcs;
+		formats = qxl_primary_plane_formats;
+		num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
+	} else {
+		return ERR_PTR(-EINVAL);
+	}
+
+	plane = kzalloc(sizeof(*plane), GFP_KERNEL);
+	if (!plane)
+		return ERR_PTR(-ENOMEM);
+
+	err = drm_universal_plane_init(&qdev->ddev, plane, possible_crtcs,
+				       funcs, formats, num_formats,
+				       type, NULL);
+	if (err)
+		goto free_plane;
+
+	drm_plane_helper_add(plane, helper_funcs);
+
+	return plane;
+
+free_plane:
+	kfree(plane);
+	return ERR_PTR(-EINVAL);
+}
+
 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 {
 	struct qxl_crtc *qxl_crtc;
+	struct drm_plane *primary;
+	struct qxl_device *qdev = dev->dev_private;
+	int r;
 
 	qxl_crtc = kzalloc(sizeof(struct qxl_crtc), GFP_KERNEL);
 	if (!qxl_crtc)
 		return -ENOMEM;
 
-	drm_crtc_init(dev, &qxl_crtc->base, &qxl_crtc_funcs);
+	primary = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_PRIMARY);
+	if (IS_ERR(primary)) {
+		r = -ENOMEM;
+		goto free_mem;
+	}
+
+	r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, NULL,
+				      &qxl_crtc_funcs, NULL);
+	if (r)
+		goto clean_primary;
+
 	qxl_crtc->index = crtc_id;
 	drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 	return 0;
+
+clean_primary:
+	drm_plane_cleanup(primary);
+	kfree(primary);
+free_mem:
+	kfree(qxl_crtc);
+	return r;
 }
 
 static void qxl_enc_dpms(struct drm_encoder *encoder, int mode)
-- 
2.11.0

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[RESEND PATCH 05/14] drm: qxl: Atomic phase 1: convert cursor to universal plane

[Gabriel Krisman Bertazi]

In preparation for atomic conversion, let's use the transitional atomic
helpers drm_plane_helper_update/disable.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
---
 drivers/gpu/drm/qxl/qxl_display.c | 441 +++++++++++++++++---------------------
 drivers/gpu/drm/qxl/qxl_drv.h     |   5 -
 2 files changed, 202 insertions(+), 244 deletions(-)

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 04f021437c25..fef464730c9b 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -30,6 +30,7 @@
 #include "qxl_object.h"
 #include "drm_crtc_helper.h"
 #include <drm/drm_plane_helper.h>
+#include <drm/drm_atomic_helper.h>
 
 static bool qxl_head_enabled(struct qxl_head *head)
 {
@@ -256,7 +257,6 @@ static void qxl_crtc_destroy(struct drm_crtc *crtc)
 	struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
 
 	drm_crtc_cleanup(crtc);
-	qxl_bo_unref(&qxl_crtc->cursor_bo);
 	kfree(qxl_crtc);
 }
 
@@ -304,234 +304,7 @@ static int qxl_crtc_page_flip(struct drm_crtc *crtc,
 	return 0;
 }
 
-static int
-qxl_hide_cursor(struct qxl_device *qdev)
-{
-	struct qxl_release *release;
-	struct qxl_cursor_cmd *cmd;
-	int ret;
-
-	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
-					 &release, NULL);
-	if (ret)
-		return ret;
-
-	ret = qxl_release_reserve_list(release, true);
-	if (ret) {
-		qxl_release_free(qdev, release);
-		return ret;
-	}
-
-	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
-	cmd->type = QXL_CURSOR_HIDE;
-	qxl_release_unmap(qdev, release, &cmd->release_info);
-
-	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
-	qxl_release_fence_buffer_objects(release);
-	return 0;
-}
-
-static int qxl_crtc_apply_cursor(struct drm_crtc *crtc)
-{
-	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
-	struct drm_device *dev = crtc->dev;
-	struct qxl_device *qdev = dev->dev_private;
-	struct qxl_cursor_cmd *cmd;
-	struct qxl_release *release;
-	int ret = 0;
-
-	if (!qcrtc->cursor_bo)
-		return 0;
-
-	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
-					 QXL_RELEASE_CURSOR_CMD,
-					 &release, NULL);
-	if (ret)
-		return ret;
-
-	ret = qxl_release_list_add(release, qcrtc->cursor_bo);
-	if (ret)
-		goto out_free_release;
-
-	ret = qxl_release_reserve_list(release, false);
-	if (ret)
-		goto out_free_release;
-
-	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
-	cmd->type = QXL_CURSOR_SET;
-	cmd->u.set.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
-	cmd->u.set.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
-
-	cmd->u.set.shape = qxl_bo_physical_address(qdev, qcrtc->cursor_bo, 0);
-
-	cmd->u.set.visible = 1;
-	qxl_release_unmap(qdev, release, &cmd->release_info);
-
-	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
-	qxl_release_fence_buffer_objects(release);
-
-	return ret;
-
-out_free_release:
-	qxl_release_free(qdev, release);
-	return ret;
-}
-
-static int qxl_crtc_cursor_set2(struct drm_crtc *crtc,
-				struct drm_file *file_priv,
-				uint32_t handle,
-				uint32_t width,
-				uint32_t height, int32_t hot_x, int32_t hot_y)
-{
-	struct drm_device *dev = crtc->dev;
-	struct qxl_device *qdev = dev->dev_private;
-	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
-	struct drm_gem_object *obj;
-	struct qxl_cursor *cursor;
-	struct qxl_cursor_cmd *cmd;
-	struct qxl_bo *cursor_bo, *user_bo;
-	struct qxl_release *release;
-	void *user_ptr;
-
-	int size = 64*64*4;
-	int ret = 0;
-	if (!handle)
-		return qxl_hide_cursor(qdev);
-
-	obj = drm_gem_object_lookup(file_priv, handle);
-	if (!obj) {
-		DRM_ERROR("cannot find cursor object\n");
-		return -ENOENT;
-	}
-
-	user_bo = gem_to_qxl_bo(obj);
-
-	ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
-	if (ret)
-		goto out_unref;
-
-	ret = qxl_bo_kmap(user_bo, &user_ptr);
-	if (ret)
-		goto out_unpin;
-
-	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
-					 QXL_RELEASE_CURSOR_CMD,
-					 &release, NULL);
-	if (ret)
-		goto out_kunmap;
-
-	ret = qxl_alloc_bo_reserved(qdev, release, sizeof(struct qxl_cursor) + size,
-			   &cursor_bo);
-	if (ret)
-		goto out_free_release;
-
-	ret = qxl_release_reserve_list(release, false);
-	if (ret)
-		goto out_free_bo;
-
-	ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
-	if (ret)
-		goto out_backoff;
-
-	cursor->header.unique = 0;
-	cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
-	cursor->header.width = 64;
-	cursor->header.height = 64;
-	cursor->header.hot_spot_x = hot_x;
-	cursor->header.hot_spot_y = hot_y;
-	cursor->data_size = size;
-	cursor->chunk.next_chunk = 0;
-	cursor->chunk.prev_chunk = 0;
-	cursor->chunk.data_size = size;
-
-	memcpy(cursor->chunk.data, user_ptr, size);
-
-	qxl_bo_kunmap(cursor_bo);
-
-	qxl_bo_kunmap(user_bo);
-
-	qcrtc->cur_x += qcrtc->hot_spot_x - hot_x;
-	qcrtc->cur_y += qcrtc->hot_spot_y - hot_y;
-	qcrtc->hot_spot_x = hot_x;
-	qcrtc->hot_spot_y = hot_y;
-
-	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
-	cmd->type = QXL_CURSOR_SET;
-	cmd->u.set.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
-	cmd->u.set.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
-
-	cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0);
-
-	cmd->u.set.visible = 1;
-	qxl_release_unmap(qdev, release, &cmd->release_info);
-
-	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
-	qxl_release_fence_buffer_objects(release);
-
-	/* finish with the userspace bo */
-	qxl_bo_unpin(user_bo);
-
-	drm_gem_object_unreference_unlocked(obj);
-
-	qxl_bo_unref (&qcrtc->cursor_bo);
-	qcrtc->cursor_bo = cursor_bo;
-
-	return ret;
-
-out_backoff:
-	qxl_release_backoff_reserve_list(release);
-out_free_bo:
-	qxl_bo_unref(&cursor_bo);
-out_free_release:
-	qxl_release_free(qdev, release);
-out_kunmap:
-	qxl_bo_kunmap(user_bo);
-out_unpin:
-	qxl_bo_unpin(user_bo);
-out_unref:
-	drm_gem_object_unreference_unlocked(obj);
-	return ret;
-}
-
-static int qxl_crtc_cursor_move(struct drm_crtc *crtc,
-				int x, int y)
-{
-	struct drm_device *dev = crtc->dev;
-	struct qxl_device *qdev = dev->dev_private;
-	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
-	struct qxl_release *release;
-	struct qxl_cursor_cmd *cmd;
-	int ret;
-
-	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD,
-				   &release, NULL);
-	if (ret)
-		return ret;
-
-	ret = qxl_release_reserve_list(release, true);
-	if (ret) {
-		qxl_release_free(qdev, release);
-		return ret;
-	}
-
-	qcrtc->cur_x = x;
-	qcrtc->cur_y = y;
-
-	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
-	cmd->type = QXL_CURSOR_MOVE;
-	cmd->u.position.x = qcrtc->cur_x + qcrtc->hot_spot_x;
-	cmd->u.position.y = qcrtc->cur_y + qcrtc->hot_spot_y;
-	qxl_release_unmap(qdev, release, &cmd->release_info);
-
-	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
-	qxl_release_fence_buffer_objects(release);
-
-	return 0;
-}
-
 static const struct drm_crtc_funcs qxl_crtc_funcs = {
-	.cursor_set2 = qxl_crtc_cursor_set2,
-	.cursor_move = qxl_crtc_cursor_move,
 	.set_config = drm_crtc_helper_set_config,
 	.destroy = qxl_crtc_destroy,
 	.page_flip = qxl_crtc_page_flip,
@@ -723,12 +496,6 @@ static int qxl_crtc_mode_set(struct drm_crtc *crtc,
 			   bo->surf.stride, bo->surf.format);
 		qxl_io_create_primary(qdev, 0, bo);
 		bo->is_primary = true;
-
-		ret = qxl_crtc_apply_cursor(crtc);
-		if (ret) {
-			DRM_ERROR("could not set cursor after modeset");
-			ret = 0;
-		}
 	}
 
 	if (bo->is_primary) {
@@ -788,6 +555,188 @@ static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 	.commit = qxl_crtc_commit,
 };
 
+int qxl_plane_atomic_check(struct drm_plane *plane,
+			   struct drm_plane_state *state)
+{
+	return 0;
+}
+
+static void qxl_cursor_atomic_update(struct drm_plane *plane,
+				     struct drm_plane_state *old_state)
+{
+	struct drm_device *dev = plane->dev;
+	struct qxl_device *qdev = dev->dev_private;
+	struct drm_framebuffer *fb = plane->state->fb;
+	struct qxl_release *release;
+	struct qxl_cursor_cmd *cmd;
+	struct qxl_cursor *cursor;
+	struct drm_gem_object *obj;
+	struct qxl_bo *cursor_bo, *user_bo = NULL;
+	int ret;
+	void *user_ptr;
+	int size = 64*64*4;
+
+	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
+					 QXL_RELEASE_CURSOR_CMD,
+					 &release, NULL);
+
+	cmd = (struct qxl_cursor_cmd *) qxl_release_map(qdev, release);
+
+	if (fb != old_state->fb) {
+		obj = to_qxl_framebuffer(fb)->obj;
+		user_bo = gem_to_qxl_bo(obj);
+
+		/* pinning is done in the prepare/cleanup framevbuffer */
+		ret = qxl_bo_kmap(user_bo, &user_ptr);
+		if (ret)
+			goto out_free_release;
+
+		ret = qxl_alloc_bo_reserved(qdev, release,
+					    sizeof(struct qxl_cursor) + size,
+					    &cursor_bo);
+		if (ret)
+			goto out_kunmap;
+
+		ret = qxl_release_reserve_list(release, true);
+		if (ret)
+			goto out_free_bo;
+
+		ret = qxl_bo_kmap(cursor_bo, (void **)&cursor);
+		if (ret)
+			goto out_backoff;
+
+		cursor->header.unique = 0;
+		cursor->header.type = SPICE_CURSOR_TYPE_ALPHA;
+		cursor->header.width = 64;
+		cursor->header.height = 64;
+		cursor->header.hot_spot_x = fb->hot_x;
+		cursor->header.hot_spot_y = fb->hot_y;
+		cursor->data_size = size;
+		cursor->chunk.next_chunk = 0;
+		cursor->chunk.prev_chunk = 0;
+		cursor->chunk.data_size = size;
+		memcpy(cursor->chunk.data, user_ptr, size);
+		qxl_bo_kunmap(cursor_bo);
+		qxl_bo_kunmap(user_bo);
+
+		cmd->u.set.visible = 1;
+		cmd->u.set.shape = qxl_bo_physical_address(qdev,
+							   cursor_bo, 0);
+		cmd->type = QXL_CURSOR_SET;
+	} else {
+
+		ret = qxl_release_reserve_list(release, true);
+		if (ret)
+			goto out_free_release;
+
+		cmd->type = QXL_CURSOR_MOVE;
+	}
+
+	cmd->u.position.x = plane->state->crtc_x + fb->hot_x;
+	cmd->u.position.y = plane->state->crtc_y + fb->hot_y;
+
+	qxl_release_unmap(qdev, release, &cmd->release_info);
+	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
+	qxl_release_fence_buffer_objects(release);
+
+	return;
+
+out_backoff:
+	qxl_release_backoff_reserve_list(release);
+out_free_bo:
+	qxl_bo_unref(&cursor_bo);
+out_kunmap:
+	qxl_bo_kunmap(user_bo);
+out_free_release:
+	qxl_release_free(qdev, release);
+	return;
+
+}
+
+void qxl_cursor_atomic_disable(struct drm_plane *plane,
+			       struct drm_plane_state *old_state)
+{
+	struct qxl_device *qdev = plane->dev->dev_private;
+	struct qxl_release *release;
+	struct qxl_cursor_cmd *cmd;
+	int ret;
+
+	ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd),
+					 QXL_RELEASE_CURSOR_CMD,
+					 &release, NULL);
+	if (ret)
+		return;
+
+	ret = qxl_release_reserve_list(release, true);
+	if (ret) {
+		qxl_release_free(qdev, release);
+		return;
+	}
+
+	cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release);
+	cmd->type = QXL_CURSOR_HIDE;
+	qxl_release_unmap(qdev, release, &cmd->release_info);
+
+	qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false);
+	qxl_release_fence_buffer_objects(release);
+}
+
+int qxl_plane_prepare_fb(struct drm_plane *plane,
+			 struct drm_plane_state *new_state)
+{
+	struct drm_gem_object *obj;
+	struct qxl_bo *user_bo;
+	int ret;
+
+	if (!new_state->fb)
+		return 0;
+
+	obj = to_qxl_framebuffer(new_state->fb)->obj;
+	user_bo = gem_to_qxl_bo(obj);
+
+	ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static void qxl_plane_cleanup_fb(struct drm_plane *plane,
+				 struct drm_plane_state *old_state)
+{
+	struct drm_gem_object *obj;
+	struct qxl_bo *user_bo;
+
+	if (!plane->state->fb) {
+		/* we never executed prepare_fb, so there's nothing to
+		 * unpin.
+		 */
+		return;
+	}
+
+	obj = to_qxl_framebuffer(plane->state->fb)->obj;
+	user_bo = gem_to_qxl_bo(obj);
+	qxl_bo_unpin(user_bo);
+}
+
+static const uint32_t qxl_cursor_plane_formats[] = {
+	DRM_FORMAT_ARGB8888,
+};
+
+static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
+	.atomic_check = qxl_plane_atomic_check,
+	.atomic_update = qxl_cursor_atomic_update,
+	.atomic_disable = qxl_cursor_atomic_disable,
+	.prepare_fb = qxl_plane_prepare_fb,
+	.cleanup_fb = qxl_plane_cleanup_fb,
+};
+
+static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
+	.update_plane	= drm_plane_helper_update,
+	.disable_plane	= drm_plane_helper_disable,
+	.destroy	= drm_primary_helper_destroy,
+};
+
 static const uint32_t qxl_primary_plane_formats[] = {
 	DRM_FORMAT_XRGB8888,
 	DRM_FORMAT_ARGB8888,
@@ -814,6 +763,11 @@ static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
 		funcs = &qxl_primary_plane_funcs;
 		formats = qxl_primary_plane_formats;
 		num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
+	} else if (type == DRM_PLANE_TYPE_CURSOR) {
+		funcs = &qxl_cursor_plane_funcs;
+		formats = qxl_cursor_plane_formats;
+		helper_funcs = &qxl_cursor_helper_funcs;
+		num_formats = ARRAY_SIZE(qxl_cursor_plane_formats);
 	} else {
 		return ERR_PTR(-EINVAL);
 	}
@@ -840,7 +794,7 @@ static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
 static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 {
 	struct qxl_crtc *qxl_crtc;
-	struct drm_plane *primary;
+	struct drm_plane *primary, *cursor;
 	struct qxl_device *qdev = dev->dev_private;
 	int r;
 
@@ -854,15 +808,24 @@ static int qdev_crtc_init(struct drm_device *dev, int crtc_id)
 		goto free_mem;
 	}
 
-	r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, NULL,
+	cursor = qxl_create_plane(qdev, 1 << crtc_id, DRM_PLANE_TYPE_CURSOR);
+	if (IS_ERR(cursor)) {
+		r = -ENOMEM;
+		goto clean_primary;
+	}
+
+	r = drm_crtc_init_with_planes(dev, &qxl_crtc->base, primary, cursor,
 				      &qxl_crtc_funcs, NULL);
 	if (r)
-		goto clean_primary;
+		goto clean_cursor;
 
 	qxl_crtc->index = crtc_id;
 	drm_crtc_helper_add(&qxl_crtc->base, &qxl_crtc_helper_funcs);
 	return 0;
 
+clean_cursor:
+	drm_plane_cleanup(cursor);
+	kfree(cursor);
 clean_primary:
 	drm_plane_cleanup(primary);
 	kfree(primary);
@@ -1213,8 +1176,8 @@ int qxl_modeset_init(struct qxl_device *qdev)
 	qdev->ddev.mode_config.funcs = (void *)&qxl_mode_funcs;
 
 	/* modes will be validated against the framebuffer size */
-	qdev->ddev.mode_config.min_width = 320;
-	qdev->ddev.mode_config.min_height = 200;
+	qdev->ddev.mode_config.min_width = 0;
+	qdev->ddev.mode_config.min_height = 0;
 	qdev->ddev.mode_config.max_width = 8192;
 	qdev->ddev.mode_config.max_height = 8192;
 
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 647f0926cb50..0c313e563632 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -134,11 +134,6 @@ struct qxl_bo_list {
 struct qxl_crtc {
 	struct drm_crtc base;
 	int index;
-	int cur_x;
-	int cur_y;
-	int hot_spot_x;
-	int hot_spot_y;
-	struct qxl_bo *cursor_bo;
 };
 
 struct qxl_output {
-- 
2.11.0

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[RESEND PATCH 06/14] drm: qxl: Atomic phase 1: Use drm_plane_helpers for primary plane

[Gabriel Krisman Bertazi]

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
---
 drivers/gpu/drm/qxl/qxl_display.c | 101 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 100 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index fef464730c9b..8ccf62ae0efd 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -252,6 +252,23 @@ static int qxl_add_common_modes(struct drm_connector *connector,
 	return i - 1;
 }
 
+static void qxl_crtc_atomic_flush(struct drm_crtc *crtc,
+				  struct drm_crtc_state *old_crtc_state)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_pending_vblank_event *event;
+	unsigned long flags;
+
+	if (crtc->state && crtc->state->event) {
+		event = crtc->state->event;
+		crtc->state->event = NULL;
+
+		spin_lock_irqsave(&dev->event_lock, flags);
+		drm_crtc_send_vblank_event(crtc, event);
+		spin_unlock_irqrestore(&dev->event_lock, flags);
+	}
+}
+
 static void qxl_crtc_destroy(struct drm_crtc *crtc)
 {
 	struct qxl_crtc *qxl_crtc = to_qxl_crtc(crtc);
@@ -553,8 +570,81 @@ static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 	.mode_set = qxl_crtc_mode_set,
 	.prepare = qxl_crtc_prepare,
 	.commit = qxl_crtc_commit,
+	.atomic_flush = qxl_crtc_atomic_flush,
 };
 
+int qxl_primary_atomic_check(struct drm_plane *plane,
+			     struct drm_plane_state *state)
+{
+	struct qxl_device *qdev = plane->dev->dev_private;
+	struct qxl_framebuffer *qfb;
+	struct qxl_bo *bo;
+
+	if (!state->crtc || !state->fb)
+		return 0;
+
+	qfb = to_qxl_framebuffer(state->fb);
+	bo = gem_to_qxl_bo(qfb->obj);
+
+	if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
+		DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void qxl_primary_atomic_update(struct drm_plane *plane,
+				      struct drm_plane_state *old_state)
+{
+	struct qxl_device *qdev = plane->dev->dev_private;
+	struct qxl_framebuffer *qfb =
+		to_qxl_framebuffer(plane->state->fb);
+	struct qxl_framebuffer *qfb_old;
+	struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
+	struct qxl_bo *bo_old;
+	struct drm_clip_rect norect = {
+	    .x1 = 0,
+	    .y1 = 0,
+	    .x2 = qfb->base.width,
+	    .y2 = qfb->base.height
+	};
+
+	if (!old_state->fb) {
+		qxl_io_log(qdev,
+			   "create primary fb: %dx%d,%d,%d\n",
+			   bo->surf.width, bo->surf.height,
+			   bo->surf.stride, bo->surf.format);
+
+		qxl_io_create_primary(qdev, 0, bo);
+		bo->is_primary = true;
+		return;
+
+	} else {
+		qfb_old = to_qxl_framebuffer(old_state->fb);
+		bo_old = gem_to_qxl_bo(qfb_old->obj);
+		bo_old->is_primary = false;
+	}
+
+	bo->is_primary = true;
+	qxl_draw_dirty_fb(qdev, qfb, bo, 0, 0, &norect, 1, 1);
+}
+
+static void qxl_primary_atomic_disable(struct drm_plane *plane,
+				       struct drm_plane_state *old_state)
+{
+	struct qxl_device *qdev = plane->dev->dev_private;
+
+	if (old_state->fb)
+	{	struct qxl_framebuffer *qfb =
+			to_qxl_framebuffer(old_state->fb);
+		struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
+
+		qxl_io_destroy_primary(qdev);
+		bo->is_primary = false;
+	}
+}
+
 int qxl_plane_atomic_check(struct drm_plane *plane,
 			   struct drm_plane_state *state)
 {
@@ -742,8 +832,16 @@ static const uint32_t qxl_primary_plane_formats[] = {
 	DRM_FORMAT_ARGB8888,
 };
 
+static const struct drm_plane_helper_funcs primary_helper_funcs = {
+	.atomic_check = qxl_primary_atomic_check,
+	.atomic_update = qxl_primary_atomic_update,
+	.atomic_disable = qxl_primary_atomic_disable,
+	.prepare_fb = qxl_plane_prepare_fb,
+	.cleanup_fb = qxl_plane_cleanup_fb,
+};
+
 static const struct drm_plane_funcs qxl_primary_plane_funcs = {
-	.update_plane	= drm_primary_helper_update,
+	.update_plane	= drm_plane_helper_update,
 	.disable_plane	= drm_primary_helper_disable,
 	.destroy	= drm_primary_helper_destroy,
 };
@@ -763,6 +861,7 @@ static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
 		funcs = &qxl_primary_plane_funcs;
 		formats = qxl_primary_plane_formats;
 		num_formats = ARRAY_SIZE(qxl_primary_plane_formats);
+		helper_funcs = &primary_helper_funcs;
 	} else if (type == DRM_PLANE_TYPE_CURSOR) {
 		funcs = &qxl_cursor_plane_funcs;
 		formats = qxl_cursor_plane_formats;
-- 
2.11.0

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[RESEND PATCH 07/14] drm: qxl: Atomic phase 1: Implement mode_set_nofb

[Gabriel Krisman Bertazi]

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
---
 drivers/gpu/drm/qxl/qxl_display.c | 88 +++++++--------------------------------
 1 file changed, 16 insertions(+), 72 deletions(-)

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 8ccf62ae0efd..b23979fad1e2 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -462,77 +462,6 @@ static void qxl_monitors_config_set(struct qxl_device *qdev,
 
 }
 
-static int qxl_crtc_mode_set(struct drm_crtc *crtc,
-			       struct drm_display_mode *mode,
-			       struct drm_display_mode *adjusted_mode,
-			       int x, int y,
-			       struct drm_framebuffer *old_fb)
-{
-	struct drm_device *dev = crtc->dev;
-	struct qxl_device *qdev = dev->dev_private;
-	struct qxl_framebuffer *qfb;
-	struct qxl_bo *bo, *old_bo = NULL;
-	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
-	bool recreate_primary = false;
-	int ret;
-	int surf_id;
-	if (!crtc->primary->fb) {
-		DRM_DEBUG_KMS("No FB bound\n");
-		return 0;
-	}
-
-	if (old_fb) {
-		qfb = to_qxl_framebuffer(old_fb);
-		old_bo = gem_to_qxl_bo(qfb->obj);
-	}
-	qfb = to_qxl_framebuffer(crtc->primary->fb);
-	bo = gem_to_qxl_bo(qfb->obj);
-	DRM_DEBUG("+%d+%d (%d,%d) => (%d,%d)\n",
-		  x, y,
-		  mode->hdisplay, mode->vdisplay,
-		  adjusted_mode->hdisplay,
-		  adjusted_mode->vdisplay);
-
-	if (bo->is_primary == false)
-		recreate_primary = true;
-
-	if (bo->surf.stride * bo->surf.height > qdev->vram_size) {
-		DRM_ERROR("Mode doesn't fit in vram size (vgamem)");
-		return -EINVAL;
-        }
-
-	ret = qxl_bo_pin(bo, bo->type, NULL);
-	if (ret != 0)
-		return -EINVAL;
-
-	if (recreate_primary) {
-		qxl_io_destroy_primary(qdev);
-		qxl_io_log(qdev,
-			   "recreate primary: %dx%d,%d,%d\n",
-			   bo->surf.width, bo->surf.height,
-			   bo->surf.stride, bo->surf.format);
-		qxl_io_create_primary(qdev, 0, bo);
-		bo->is_primary = true;
-	}
-
-	if (bo->is_primary) {
-		DRM_DEBUG_KMS("setting surface_id to 0 for primary surface %d on crtc %d\n", bo->surface_id, qcrtc->index);
-		surf_id = 0;
-	} else {
-		surf_id = bo->surface_id;
-	}
-
-	if (old_bo && old_bo != bo) {
-		old_bo->is_primary = false;
-		qxl_bo_unpin(old_bo);
-	}
-
-	qxl_monitors_config_set(qdev, qcrtc->index, x, y,
-				mode->hdisplay,
-				mode->vdisplay, surf_id);
-	return 0;
-}
-
 static void qxl_crtc_prepare(struct drm_crtc *crtc)
 {
 	DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
@@ -540,6 +469,20 @@ static void qxl_crtc_prepare(struct drm_crtc *crtc)
 		  crtc->x, crtc->y, crtc->enabled);
 }
 
+void qxl_mode_set_nofb(struct drm_crtc *crtc)
+{
+	struct qxl_device *qdev = crtc->dev->dev_private;
+	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
+	struct drm_display_mode *mode = &crtc->mode;
+
+	DRM_DEBUG("Mode set (%d,%d)\n",
+		  mode->hdisplay, mode->vdisplay);
+
+	qxl_monitors_config_set(qdev, qcrtc->index, 0, 0,
+				mode->hdisplay,	mode->vdisplay, 0);
+
+}
+
 static void qxl_crtc_commit(struct drm_crtc *crtc)
 {
 	DRM_DEBUG("\n");
@@ -567,7 +510,8 @@ static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 	.dpms = qxl_crtc_dpms,
 	.disable = qxl_crtc_disable,
 	.mode_fixup = qxl_crtc_mode_fixup,
-	.mode_set = qxl_crtc_mode_set,
+	.mode_set = drm_helper_crtc_mode_set,
+	.mode_set_nofb = qxl_mode_set_nofb,
 	.prepare = qxl_crtc_prepare,
 	.commit = qxl_crtc_commit,
 	.atomic_flush = qxl_crtc_atomic_flush,
-- 
2.11.0

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[RESEND PATCH 08/14] drm: qxl: Atomic phase 1: Don't unpin primary when disabling crtc

[Gabriel Krisman Bertazi]

In the qxl atomic model, the primary doesn't stay pinned all the time,
instead it is only pinned/unpinned between prepare_fb and cleanup_fb.
So, we no longer need a final unpin of the primary framebuffer when
disabling the crtc.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
---
 drivers/gpu/drm/qxl/qxl_display.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index b23979fad1e2..09c076f5a792 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -491,15 +491,7 @@ static void qxl_crtc_commit(struct drm_crtc *crtc)
 static void qxl_crtc_disable(struct drm_crtc *crtc)
 {
 	struct qxl_crtc *qcrtc = to_qxl_crtc(crtc);
-	struct drm_device *dev = crtc->dev;
-	struct qxl_device *qdev = dev->dev_private;
-	if (crtc->primary->fb) {
-		struct qxl_framebuffer *qfb = to_qxl_framebuffer(crtc->primary->fb);
-		struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
-
-		qxl_bo_unpin(bo);
-		crtc->primary->fb = NULL;
-	}
+	struct qxl_device *qdev = crtc->dev->dev_private;
 
 	qxl_monitors_config_set(qdev, qcrtc->index, 0, 0, 0, 0, 0);
 
-- 
2.11.0

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[RESEND PATCH 09/14] drm: qxl: Atomic phase 2: Wire up state object handlers

[Gabriel Krisman Bertazi]

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
---
 drivers/gpu/drm/qxl/qxl_display.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 09c076f5a792..d5a00b6a07ea 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -325,6 +325,9 @@ static const struct drm_crtc_funcs qxl_crtc_funcs = {
 	.set_config = drm_crtc_helper_set_config,
 	.destroy = qxl_crtc_destroy,
 	.page_flip = qxl_crtc_page_flip,
+	.reset = drm_atomic_helper_crtc_reset,
+	.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
 };
 
 void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
@@ -761,6 +764,9 @@ static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
 	.update_plane	= drm_plane_helper_update,
 	.disable_plane	= drm_plane_helper_disable,
 	.destroy	= drm_primary_helper_destroy,
+	.reset		= drm_atomic_helper_plane_reset,
+	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 };
 
 static const uint32_t qxl_primary_plane_formats[] = {
@@ -780,6 +786,9 @@ static const struct drm_plane_funcs qxl_primary_plane_funcs = {
 	.update_plane	= drm_plane_helper_update,
 	.disable_plane	= drm_primary_helper_disable,
 	.destroy	= drm_primary_helper_destroy,
+	.reset		= drm_atomic_helper_plane_reset,
+	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 };
 
 static struct drm_plane *qxl_create_plane(struct qxl_device *qdev,
@@ -1057,6 +1066,9 @@ static const struct drm_connector_funcs qxl_connector_funcs = {
 	.fill_modes = drm_helper_probe_single_connector_modes,
 	.set_property = qxl_conn_set_property,
 	.destroy = qxl_conn_destroy,
+	.reset = drm_atomic_helper_connector_reset,
+	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
 
 static void qxl_enc_destroy(struct drm_encoder *encoder)
@@ -1228,6 +1240,8 @@ int qxl_modeset_init(struct qxl_device *qdev)
 
 	qdev->mode_info.mode_config_initialized = true;
 
+	drm_mode_config_reset(&qdev->ddev);
+
 	/* primary surface must be created by this point, to allow
 	 * issuing command queue commands and having them read by
 	 * spice server. */
-- 
2.11.0

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[RESEND PATCH 10/14] drm: qxl: Atomic phase 2: Use drm_atomic_set_fb_for_plane helper

[Gabriel Krisman Bertazi]

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
---
 drivers/gpu/drm/qxl/qxl_display.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index d5a00b6a07ea..d1c12ac222b7 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -31,6 +31,7 @@
 #include "drm_crtc_helper.h"
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_atomic.h>
 
 static bool qxl_head_enabled(struct qxl_head *head)
 {
@@ -299,7 +300,8 @@ static int qxl_crtc_page_flip(struct drm_crtc *crtc,
 	int one_clip_rect = 1;
 	int ret = 0;
 
-	crtc->primary->fb = fb;
+	drm_atomic_set_fb_for_plane(crtc->primary->state, fb);
+
 	bo_old->is_primary = false;
 	bo->is_primary = true;
 
-- 
2.11.0

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[RESEND PATCH 11/14] drm: qxl: Atomic phase 3: Use atomic handlers for planes

[Gabriel Krisman Bertazi]

Now that the state objects are wired up, we can move to the final atomic
handlers.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
---
 drivers/gpu/drm/qxl/qxl_display.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index d1c12ac222b7..52c4e643331a 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -763,8 +763,8 @@ static const struct drm_plane_helper_funcs qxl_cursor_helper_funcs = {
 };
 
 static const struct drm_plane_funcs qxl_cursor_plane_funcs = {
-	.update_plane	= drm_plane_helper_update,
-	.disable_plane	= drm_plane_helper_disable,
+	.update_plane	= drm_atomic_helper_update_plane,
+	.disable_plane	= drm_atomic_helper_disable_plane,
 	.destroy	= drm_primary_helper_destroy,
 	.reset		= drm_atomic_helper_plane_reset,
 	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
@@ -785,8 +785,8 @@ static const struct drm_plane_helper_funcs primary_helper_funcs = {
 };
 
 static const struct drm_plane_funcs qxl_primary_plane_funcs = {
-	.update_plane	= drm_plane_helper_update,
-	.disable_plane	= drm_primary_helper_disable,
+	.update_plane	= drm_atomic_helper_update_plane,
+	.disable_plane	= drm_atomic_helper_disable_plane,
 	.destroy	= drm_primary_helper_destroy,
 	.reset		= drm_atomic_helper_plane_reset,
 	.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
@@ -1161,6 +1161,8 @@ qxl_user_framebuffer_create(struct drm_device *dev,
 
 static const struct drm_mode_config_funcs qxl_mode_funcs = {
 	.fb_create = qxl_user_framebuffer_create,
+	.atomic_check = drm_atomic_helper_check,
+	.atomic_commit = drm_atomic_helper_commit,
 };
 
 int qxl_create_monitors_object(struct qxl_device *qdev)
-- 
2.11.0

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[RESEND PATCH 12/14] drm: qxl: Atomic phase 3: Wire up atomic set_config helper

[Gabriel Krisman Bertazi]

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
---
 drivers/gpu/drm/qxl/qxl_display.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 52c4e643331a..f86e194ed797 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -324,7 +324,7 @@ static int qxl_crtc_page_flip(struct drm_crtc *crtc,
 }
 
 static const struct drm_crtc_funcs qxl_crtc_funcs = {
-	.set_config = drm_crtc_helper_set_config,
+	.set_config = drm_atomic_helper_set_config,
 	.destroy = qxl_crtc_destroy,
 	.page_flip = qxl_crtc_page_flip,
 	.reset = drm_atomic_helper_crtc_reset,
@@ -467,13 +467,6 @@ static void qxl_monitors_config_set(struct qxl_device *qdev,
 
 }
 
-static void qxl_crtc_prepare(struct drm_crtc *crtc)
-{
-	DRM_DEBUG("current: %dx%d+%d+%d (%d).\n",
-		  crtc->mode.hdisplay, crtc->mode.vdisplay,
-		  crtc->x, crtc->y, crtc->enabled);
-}
-
 void qxl_mode_set_nofb(struct drm_crtc *crtc)
 {
 	struct qxl_device *qdev = crtc->dev->dev_private;
@@ -507,9 +500,7 @@ static const struct drm_crtc_helper_funcs qxl_crtc_helper_funcs = {
 	.dpms = qxl_crtc_dpms,
 	.disable = qxl_crtc_disable,
 	.mode_fixup = qxl_crtc_mode_fixup,
-	.mode_set = drm_helper_crtc_mode_set,
 	.mode_set_nofb = qxl_mode_set_nofb,
-	.prepare = qxl_crtc_prepare,
 	.commit = qxl_crtc_commit,
 	.atomic_flush = qxl_crtc_atomic_flush,
 };
-- 
2.11.0

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[RESEND PATCH 13/14] drm: qxl: Atomic phase 3: Wire up atomic page_flip helper

[Gabriel Krisman Bertazi]

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
---
 drivers/gpu/drm/qxl/qxl_display.c | 47 +--------------------------------------
 1 file changed, 1 insertion(+), 46 deletions(-)

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index f86e194ed797..2cd14bebc49c 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -278,55 +278,10 @@ static void qxl_crtc_destroy(struct drm_crtc *crtc)
 	kfree(qxl_crtc);
 }
 
-static int qxl_crtc_page_flip(struct drm_crtc *crtc,
-                              struct drm_framebuffer *fb,
-                              struct drm_pending_vblank_event *event,
-                              uint32_t page_flip_flags)
-{
-	struct drm_device *dev = crtc->dev;
-	struct qxl_device *qdev = dev->dev_private;
-	struct qxl_framebuffer *qfb_src = to_qxl_framebuffer(fb);
-	struct qxl_framebuffer *qfb_old = to_qxl_framebuffer(crtc->primary->fb);
-	struct qxl_bo *bo_old = gem_to_qxl_bo(qfb_old->obj);
-	struct qxl_bo *bo = gem_to_qxl_bo(qfb_src->obj);
-	unsigned long flags;
-	struct drm_clip_rect norect = {
-	    .x1 = 0,
-	    .y1 = 0,
-	    .x2 = fb->width,
-	    .y2 = fb->height
-	};
-	int inc = 1;
-	int one_clip_rect = 1;
-	int ret = 0;
-
-	drm_atomic_set_fb_for_plane(crtc->primary->state, fb);
-
-	bo_old->is_primary = false;
-	bo->is_primary = true;
-
-	ret = qxl_bo_pin(bo, bo->type, NULL);
-	if (ret)
-		return ret;
-
-	qxl_draw_dirty_fb(qdev, qfb_src, bo, 0, 0,
-			  &norect, one_clip_rect, inc);
-
-	if (event) {
-		spin_lock_irqsave(&dev->event_lock, flags);
-		drm_crtc_send_vblank_event(crtc, event);
-		spin_unlock_irqrestore(&dev->event_lock, flags);
-	}
-
-	qxl_bo_unpin(bo);
-
-	return 0;
-}
-
 static const struct drm_crtc_funcs qxl_crtc_funcs = {
 	.set_config = drm_atomic_helper_set_config,
 	.destroy = qxl_crtc_destroy,
-	.page_flip = qxl_crtc_page_flip,
+	.page_flip = drm_atomic_helper_page_flip,
 	.reset = drm_atomic_helper_crtc_reset,
 	.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
 	.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
-- 
2.11.0

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[RESEND PATCH 14/14] drm: qxl: Enable atomic modesetting ioctl

[Gabriel Krisman Bertazi]

Now that atomic support is implemented, enable the atomic flag.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
---
 drivers/gpu/drm/qxl/qxl_drv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index 67e94f4f3ce8..215ef001b718 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -259,7 +259,8 @@ static struct pci_driver qxl_pci_driver = {
 
 static struct drm_driver qxl_driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME |
-			   DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
+			   DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
+			   DRIVER_ATOMIC,
 
 	.set_busid = drm_pci_set_busid,
 
-- 
2.11.0

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Re: [RESEND PATCH 00/14] QXL atomic modesetting

[Gerd Hoffmann]

On Mo, 2017-02-27 at 17:43 -0300, Gabriel Krisman Bertazi wrote:
> Hi,
> 
> This is a resend of the qxl atomic modesetting patchset to include the reviewed-by tags from Gustavo and rebase on top of the tip of drm-misc-next.
> 
> This series implements support for Atomic Modesetting in the QXL driver.
> The first 4 patches in the series are some cleanups to prepare the
> ground, while the rest implement Atomic in 3 phases, as suggested by
> Daniel's blog post[1].
> 
> Testing was done with the X server, igt, libdrm testsuit and some custom
> code that I can share if requested.  I hope this covers the main use
> cases.

Patches look good, great job.  I'll go run some more tests and if all
goes fine I'll push to drm-misc-next.

thanks,
  Gerd

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Re: [RESEND PATCH 00/14] QXL atomic modesetting

[Gerd Hoffmann]

  Hi,

> Patches look good, great job.  I'll go run some more tests and if all
> goes fine I'll push to drm-misc-next.

Ok, cool, text console, xorg and wayland all work fine without glitches.

Series pushed.

thanks,
  Gerd

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Re: [RESEND PATCH 00/14] QXL atomic modesetting

[Gerd Hoffmann]

On Mo, 2017-02-27 at 17:43 -0300, Gabriel Krisman Bertazi wrote:
> Hi,
> 
> This is a resend of the qxl atomic modesetting patchset to include the reviewed-by tags from Gustavo and rebase on top of the tip of drm-misc-next.
> 
> This series implements support for Atomic Modesetting in the QXL driver.
> The first 4 patches in the series are some cleanups to prepare the
> ground, while the rest implement Atomic in 3 phases, as suggested by
> Daniel's blog post[1].
> 
> Testing was done with the X server, igt, libdrm testsuit and some custom
> code that I can share if requested.  I hope this covers the main use
> cases.

Hmm, throws a "unpin not necessary" now and then, when switching
runlevels.  Not every time, usually have to switch from 5 to 3 and back
a few times to see it.

cheers,
  Gerd
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Re: [RESEND PATCH 00/14] QXL atomic modesetting

[Gerd Hoffmann]

On Di, 2017-02-28 at 14:29 +0100, Gerd Hoffmann wrote:
> On Mo, 2017-02-27 at 17:43 -0300, Gabriel Krisman Bertazi wrote:
> > Hi,
> > 
> > This is a resend of the qxl atomic modesetting patchset to include the reviewed-by tags from Gustavo and rebase on top of the tip of drm-misc-next.
> > 
> > This series implements support for Atomic Modesetting in the QXL driver.
> > The first 4 patches in the series are some cleanups to prepare the
> > ground, while the rest implement Atomic in 3 phases, as suggested by
> > Daniel's blog post[1].
> > 
> > Testing was done with the X server, igt, libdrm testsuit and some custom
> > code that I can share if requested.  I hope this covers the main use
> > cases.
> 
> Hmm, throws a "unpin not necessary" now and then, when switching
> runlevels.  Not every time, usually have to switch from 5 to 3 and back
> a few times to see it.

Oops, scratch that, error in my setup, tested wrong branch, sorry.

cheers,
  Gerd

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