[PATCH v3 0/7] Make the rest of the VFIO driver interface use vfio

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* [PATCH v3 0/7] Make the rest of the VFIO driver interface use vfio_device
@ 2022-05-02 17:31 ` Jason Gunthorpe
  0 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Eric Farman, Christoph Hellwig, intel-gfx,
	intel-gvt-dev, Jason J. Herne, Tian, Kevin, kvm, Liu, Yi L

Prior series have transformed other parts of VFIO from working on struct
device or struct vfio_group into working directly on struct
vfio_device. Based on that work we now have vfio_device's readily
available in all the drivers.

Update the rest of the driver facing API to use vfio_device as an input.

The following are switched from struct device to struct vfio_device:
  vfio_register_notifier()
  vfio_unregister_notifier()
  vfio_pin_pages()
  vfio_unpin_pages()
  vfio_dma_rw()

The following group APIs are obsoleted and removed by just using struct
vfio_device with the above:
  vfio_group_pin_pages()
  vfio_group_unpin_pages()
  vfio_group_iommu_domain()
  vfio_group_get_external_user_from_dev()

To retain the performance of the new device APIs relative to their group
versions optimize how vfio_group_add_container_user() is used to avoid
calling it when the driver must already guarantee the device is open and
the container_users incrd.

The remaining exported VFIO group interfaces are only used by kvm, and are
addressed by a parallel series.

This series is based on Christoph's gvt rework here:

 https://lore.kernel.org/all/5a8b9f48-2c32-8177-1c18-e3bd7bfde558@intel.com/

and so will need the PR merged first.

I have a followup series that needs this.

This is also part of the iommufd work - moving the driver facing interface
to vfio_device provides a much cleaner path to integrate with iommufd.

v3:
 - Based on VFIO's gvt/iommu merge
 - Remove mention of mdev_legacy_get_vfio_device() from commit message
 - Clarify commit message for vfio_dma_rw() conversion
 - Talk about the open_count change in the commit message
 - No code change
v2: https://lore.kernel.org/r/0-v2-6011bde8e0a1+5f-vfio_mdev_no_group_jgg@nvidia.com
 - Based on Christoph's series so mdev_legacy_get_vfio_device() is removed
 - Reflow indenting
 - Use vfio_assert_device_open() and WARN_ON_ONCE instead of open coding
   the assertion
v1: https://lore.kernel.org/r/0-v1-a8faf768d202+125dd-vfio_mdev_no_group_jgg@nvidia.com

Jason Gunthorpe (7):
  vfio: Make vfio_(un)register_notifier accept a vfio_device
  vfio/ccw: Remove mdev from struct channel_program
  vfio/mdev: Pass in a struct vfio_device * to vfio_pin/unpin_pages()
  vfio/mdev: Pass in a struct vfio_device * to vfio_dma_rw()
  drm/i915/gvt: Change from vfio_group_(un)pin_pages to
    vfio_(un)pin_pages
  vfio: Remove dead code
  vfio: Remove calls to vfio_group_add_container_user()

 .../driver-api/vfio-mediated-device.rst       |   4 +-
 drivers/gpu/drm/i915/gvt/gvt.h                |   5 +-
 drivers/gpu/drm/i915/gvt/kvmgt.c              |  51 ++--
 drivers/s390/cio/vfio_ccw_cp.c                |  47 +--
 drivers/s390/cio/vfio_ccw_cp.h                |   4 +-
 drivers/s390/cio/vfio_ccw_fsm.c               |   3 +-
 drivers/s390/cio/vfio_ccw_ops.c               |   7 +-
 drivers/s390/crypto/vfio_ap_ops.c             |  23 +-
 drivers/vfio/vfio.c                           | 288 ++----------------
 include/linux/vfio.h                          |  21 +-
 10 files changed, 102 insertions(+), 351 deletions(-)


base-commit: 676d7cda1a3c19872428a9bc818577a1aafafdd5
-- 
2.36.0


^ permalink raw reply	[flat|nested] 26+ messages in thread

* [Intel-gfx] [PATCH v3 0/7] Make the rest of the VFIO driver interface use vfio_device
@ 2022-05-02 17:31 ` Jason Gunthorpe
  0 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Jason J. Herne, Eric Farman, Liu, Yi L, kvm,
	intel-gfx, intel-gvt-dev, Christoph Hellwig

Prior series have transformed other parts of VFIO from working on struct
device or struct vfio_group into working directly on struct
vfio_device. Based on that work we now have vfio_device's readily
available in all the drivers.

Update the rest of the driver facing API to use vfio_device as an input.

The following are switched from struct device to struct vfio_device:
  vfio_register_notifier()
  vfio_unregister_notifier()
  vfio_pin_pages()
  vfio_unpin_pages()
  vfio_dma_rw()

The following group APIs are obsoleted and removed by just using struct
vfio_device with the above:
  vfio_group_pin_pages()
  vfio_group_unpin_pages()
  vfio_group_iommu_domain()
  vfio_group_get_external_user_from_dev()

To retain the performance of the new device APIs relative to their group
versions optimize how vfio_group_add_container_user() is used to avoid
calling it when the driver must already guarantee the device is open and
the container_users incrd.

The remaining exported VFIO group interfaces are only used by kvm, and are
addressed by a parallel series.

This series is based on Christoph's gvt rework here:

 https://lore.kernel.org/all/5a8b9f48-2c32-8177-1c18-e3bd7bfde558@intel.com/

and so will need the PR merged first.

I have a followup series that needs this.

This is also part of the iommufd work - moving the driver facing interface
to vfio_device provides a much cleaner path to integrate with iommufd.

v3:
 - Based on VFIO's gvt/iommu merge
 - Remove mention of mdev_legacy_get_vfio_device() from commit message
 - Clarify commit message for vfio_dma_rw() conversion
 - Talk about the open_count change in the commit message
 - No code change
v2: https://lore.kernel.org/r/0-v2-6011bde8e0a1+5f-vfio_mdev_no_group_jgg@nvidia.com
 - Based on Christoph's series so mdev_legacy_get_vfio_device() is removed
 - Reflow indenting
 - Use vfio_assert_device_open() and WARN_ON_ONCE instead of open coding
   the assertion
v1: https://lore.kernel.org/r/0-v1-a8faf768d202+125dd-vfio_mdev_no_group_jgg@nvidia.com

Jason Gunthorpe (7):
  vfio: Make vfio_(un)register_notifier accept a vfio_device
  vfio/ccw: Remove mdev from struct channel_program
  vfio/mdev: Pass in a struct vfio_device * to vfio_pin/unpin_pages()
  vfio/mdev: Pass in a struct vfio_device * to vfio_dma_rw()
  drm/i915/gvt: Change from vfio_group_(un)pin_pages to
    vfio_(un)pin_pages
  vfio: Remove dead code
  vfio: Remove calls to vfio_group_add_container_user()

 .../driver-api/vfio-mediated-device.rst       |   4 +-
 drivers/gpu/drm/i915/gvt/gvt.h                |   5 +-
 drivers/gpu/drm/i915/gvt/kvmgt.c              |  51 ++--
 drivers/s390/cio/vfio_ccw_cp.c                |  47 +--
 drivers/s390/cio/vfio_ccw_cp.h                |   4 +-
 drivers/s390/cio/vfio_ccw_fsm.c               |   3 +-
 drivers/s390/cio/vfio_ccw_ops.c               |   7 +-
 drivers/s390/crypto/vfio_ap_ops.c             |  23 +-
 drivers/vfio/vfio.c                           | 288 ++----------------
 include/linux/vfio.h                          |  21 +-
 10 files changed, 102 insertions(+), 351 deletions(-)


base-commit: 676d7cda1a3c19872428a9bc818577a1aafafdd5
-- 
2.36.0


^ permalink raw reply	[flat|nested] 26+ messages in thread

* [PATCH v3 1/7] vfio: Make vfio_(un)register_notifier accept a vfio_device
  2022-05-02 17:31 ` [Intel-gfx] " Jason Gunthorpe
@ 2022-05-02 17:31   ` Jason Gunthorpe
  -1 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Eric Farman, Christoph Hellwig, intel-gfx,
	intel-gvt-dev, Jason J. Herne, Tian, Kevin, kvm, Liu, Yi L

All callers have a struct vfio_device trivially available, pass it in
directly and avoid calling the expensive vfio_group_get_from_dev().

Acked-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/gpu/drm/i915/gvt/kvmgt.c  | 24 ++++++++++++------------
 drivers/s390/cio/vfio_ccw_ops.c   |  7 +++----
 drivers/s390/crypto/vfio_ap_ops.c | 14 +++++++-------
 drivers/vfio/vfio.c               | 25 +++++++------------------
 include/linux/vfio.h              |  4 ++--
 5 files changed, 31 insertions(+), 43 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 0787ba5c301f5e..1cec4f1fdfaced 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -810,8 +810,8 @@ static int intel_vgpu_open_device(struct vfio_device *vfio_dev)
 	vgpu->group_notifier.notifier_call = intel_vgpu_group_notifier;
 
 	events = VFIO_IOMMU_NOTIFY_DMA_UNMAP;
-	ret = vfio_register_notifier(vfio_dev->dev, VFIO_IOMMU_NOTIFY, &events,
-				&vgpu->iommu_notifier);
+	ret = vfio_register_notifier(vfio_dev, VFIO_IOMMU_NOTIFY, &events,
+				     &vgpu->iommu_notifier);
 	if (ret != 0) {
 		gvt_vgpu_err("vfio_register_notifier for iommu failed: %d\n",
 			ret);
@@ -819,8 +819,8 @@ static int intel_vgpu_open_device(struct vfio_device *vfio_dev)
 	}
 
 	events = VFIO_GROUP_NOTIFY_SET_KVM;
-	ret = vfio_register_notifier(vfio_dev->dev, VFIO_GROUP_NOTIFY, &events,
-				&vgpu->group_notifier);
+	ret = vfio_register_notifier(vfio_dev, VFIO_GROUP_NOTIFY, &events,
+				     &vgpu->group_notifier);
 	if (ret != 0) {
 		gvt_vgpu_err("vfio_register_notifier for group failed: %d\n",
 			ret);
@@ -873,12 +873,12 @@ static int intel_vgpu_open_device(struct vfio_device *vfio_dev)
 	vgpu->vfio_group = NULL;
 
 undo_register:
-	vfio_unregister_notifier(vfio_dev->dev, VFIO_GROUP_NOTIFY,
-					&vgpu->group_notifier);
+	vfio_unregister_notifier(vfio_dev, VFIO_GROUP_NOTIFY,
+				 &vgpu->group_notifier);
 
 undo_iommu:
-	vfio_unregister_notifier(vfio_dev->dev, VFIO_IOMMU_NOTIFY,
-					&vgpu->iommu_notifier);
+	vfio_unregister_notifier(vfio_dev, VFIO_IOMMU_NOTIFY,
+				 &vgpu->iommu_notifier);
 out:
 	return ret;
 }
@@ -907,13 +907,13 @@ static void __intel_vgpu_release(struct intel_vgpu *vgpu)
 
 	intel_gvt_release_vgpu(vgpu);
 
-	ret = vfio_unregister_notifier(vgpu->vfio_device.dev, VFIO_IOMMU_NOTIFY,
-					&vgpu->iommu_notifier);
+	ret = vfio_unregister_notifier(&vgpu->vfio_device, VFIO_IOMMU_NOTIFY,
+				       &vgpu->iommu_notifier);
 	drm_WARN(&i915->drm, ret,
 		 "vfio_unregister_notifier for iommu failed: %d\n", ret);
 
-	ret = vfio_unregister_notifier(vgpu->vfio_device.dev, VFIO_GROUP_NOTIFY,
-					&vgpu->group_notifier);
+	ret = vfio_unregister_notifier(&vgpu->vfio_device, VFIO_GROUP_NOTIFY,
+				       &vgpu->group_notifier);
 	drm_WARN(&i915->drm, ret,
 		 "vfio_unregister_notifier for group failed: %d\n", ret);
 
diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c
index c4d60cdbf247bf..b49e2e9db2dc6f 100644
--- a/drivers/s390/cio/vfio_ccw_ops.c
+++ b/drivers/s390/cio/vfio_ccw_ops.c
@@ -183,7 +183,7 @@ static int vfio_ccw_mdev_open_device(struct vfio_device *vdev)
 
 	private->nb.notifier_call = vfio_ccw_mdev_notifier;
 
-	ret = vfio_register_notifier(vdev->dev, VFIO_IOMMU_NOTIFY,
+	ret = vfio_register_notifier(vdev, VFIO_IOMMU_NOTIFY,
 				     &events, &private->nb);
 	if (ret)
 		return ret;
@@ -204,8 +204,7 @@ static int vfio_ccw_mdev_open_device(struct vfio_device *vdev)
 
 out_unregister:
 	vfio_ccw_unregister_dev_regions(private);
-	vfio_unregister_notifier(vdev->dev, VFIO_IOMMU_NOTIFY,
-				 &private->nb);
+	vfio_unregister_notifier(vdev, VFIO_IOMMU_NOTIFY, &private->nb);
 	return ret;
 }
 
@@ -223,7 +222,7 @@ static void vfio_ccw_mdev_close_device(struct vfio_device *vdev)
 
 	cp_free(&private->cp);
 	vfio_ccw_unregister_dev_regions(private);
-	vfio_unregister_notifier(vdev->dev, VFIO_IOMMU_NOTIFY, &private->nb);
+	vfio_unregister_notifier(vdev, VFIO_IOMMU_NOTIFY, &private->nb);
 }
 
 static ssize_t vfio_ccw_mdev_read_io_region(struct vfio_ccw_private *private,
diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c
index ee0a3bf8f476ca..bfa7ee6ef532d9 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -1406,21 +1406,21 @@ static int vfio_ap_mdev_open_device(struct vfio_device *vdev)
 	matrix_mdev->group_notifier.notifier_call = vfio_ap_mdev_group_notifier;
 	events = VFIO_GROUP_NOTIFY_SET_KVM;
 
-	ret = vfio_register_notifier(vdev->dev, VFIO_GROUP_NOTIFY,
-				     &events, &matrix_mdev->group_notifier);
+	ret = vfio_register_notifier(vdev, VFIO_GROUP_NOTIFY, &events,
+				     &matrix_mdev->group_notifier);
 	if (ret)
 		return ret;
 
 	matrix_mdev->iommu_notifier.notifier_call = vfio_ap_mdev_iommu_notifier;
 	events = VFIO_IOMMU_NOTIFY_DMA_UNMAP;
-	ret = vfio_register_notifier(vdev->dev, VFIO_IOMMU_NOTIFY,
-				     &events, &matrix_mdev->iommu_notifier);
+	ret = vfio_register_notifier(vdev, VFIO_IOMMU_NOTIFY, &events,
+				     &matrix_mdev->iommu_notifier);
 	if (ret)
 		goto out_unregister_group;
 	return 0;
 
 out_unregister_group:
-	vfio_unregister_notifier(vdev->dev, VFIO_GROUP_NOTIFY,
+	vfio_unregister_notifier(vdev, VFIO_GROUP_NOTIFY,
 				 &matrix_mdev->group_notifier);
 	return ret;
 }
@@ -1430,9 +1430,9 @@ static void vfio_ap_mdev_close_device(struct vfio_device *vdev)
 	struct ap_matrix_mdev *matrix_mdev =
 		container_of(vdev, struct ap_matrix_mdev, vdev);
 
-	vfio_unregister_notifier(vdev->dev, VFIO_IOMMU_NOTIFY,
+	vfio_unregister_notifier(vdev, VFIO_IOMMU_NOTIFY,
 				 &matrix_mdev->iommu_notifier);
-	vfio_unregister_notifier(vdev->dev, VFIO_GROUP_NOTIFY,
+	vfio_unregister_notifier(vdev, VFIO_GROUP_NOTIFY,
 				 &matrix_mdev->group_notifier);
 	vfio_ap_mdev_unset_kvm(matrix_mdev);
 }
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 0c766384cee0f8..13494c1e497405 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -2269,19 +2269,15 @@ static int vfio_unregister_group_notifier(struct vfio_group *group,
 	return ret;
 }
 
-int vfio_register_notifier(struct device *dev, enum vfio_notify_type type,
+int vfio_register_notifier(struct vfio_device *dev, enum vfio_notify_type type,
 			   unsigned long *events, struct notifier_block *nb)
 {
-	struct vfio_group *group;
+	struct vfio_group *group = dev->group;
 	int ret;
 
-	if (!dev || !nb || !events || (*events == 0))
+	if (!nb || !events || (*events == 0))
 		return -EINVAL;
 
-	group = vfio_group_get_from_dev(dev);
-	if (!group)
-		return -ENODEV;
-
 	switch (type) {
 	case VFIO_IOMMU_NOTIFY:
 		ret = vfio_register_iommu_notifier(group, events, nb);
@@ -2292,25 +2288,20 @@ int vfio_register_notifier(struct device *dev, enum vfio_notify_type type,
 	default:
 		ret = -EINVAL;
 	}
-
-	vfio_group_put(group);
 	return ret;
 }
 EXPORT_SYMBOL(vfio_register_notifier);
 
-int vfio_unregister_notifier(struct device *dev, enum vfio_notify_type type,
+int vfio_unregister_notifier(struct vfio_device *dev,
+			     enum vfio_notify_type type,
 			     struct notifier_block *nb)
 {
-	struct vfio_group *group;
+	struct vfio_group *group = dev->group;
 	int ret;
 
-	if (!dev || !nb)
+	if (!nb)
 		return -EINVAL;
 
-	group = vfio_group_get_from_dev(dev);
-	if (!group)
-		return -ENODEV;
-
 	switch (type) {
 	case VFIO_IOMMU_NOTIFY:
 		ret = vfio_unregister_iommu_notifier(group, nb);
@@ -2321,8 +2312,6 @@ int vfio_unregister_notifier(struct device *dev, enum vfio_notify_type type,
 	default:
 		ret = -EINVAL;
 	}
-
-	vfio_group_put(group);
 	return ret;
 }
 EXPORT_SYMBOL(vfio_unregister_notifier);
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 66dda06ec42d1b..748ec0e0293aea 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -178,11 +178,11 @@ enum vfio_notify_type {
 /* events for VFIO_GROUP_NOTIFY */
 #define VFIO_GROUP_NOTIFY_SET_KVM	BIT(0)
 
-extern int vfio_register_notifier(struct device *dev,
+extern int vfio_register_notifier(struct vfio_device *dev,
 				  enum vfio_notify_type type,
 				  unsigned long *required_events,
 				  struct notifier_block *nb);
-extern int vfio_unregister_notifier(struct device *dev,
+extern int vfio_unregister_notifier(struct vfio_device *dev,
 				    enum vfio_notify_type type,
 				    struct notifier_block *nb);
 
-- 
2.36.0


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [Intel-gfx] [PATCH v3 1/7] vfio: Make vfio_(un)register_notifier accept a vfio_device
@ 2022-05-02 17:31   ` Jason Gunthorpe
  0 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Jason J. Herne, Eric Farman, Liu, Yi L, kvm,
	intel-gfx, intel-gvt-dev, Christoph Hellwig

All callers have a struct vfio_device trivially available, pass it in
directly and avoid calling the expensive vfio_group_get_from_dev().

Acked-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/gpu/drm/i915/gvt/kvmgt.c  | 24 ++++++++++++------------
 drivers/s390/cio/vfio_ccw_ops.c   |  7 +++----
 drivers/s390/crypto/vfio_ap_ops.c | 14 +++++++-------
 drivers/vfio/vfio.c               | 25 +++++++------------------
 include/linux/vfio.h              |  4 ++--
 5 files changed, 31 insertions(+), 43 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 0787ba5c301f5e..1cec4f1fdfaced 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -810,8 +810,8 @@ static int intel_vgpu_open_device(struct vfio_device *vfio_dev)
 	vgpu->group_notifier.notifier_call = intel_vgpu_group_notifier;
 
 	events = VFIO_IOMMU_NOTIFY_DMA_UNMAP;
-	ret = vfio_register_notifier(vfio_dev->dev, VFIO_IOMMU_NOTIFY, &events,
-				&vgpu->iommu_notifier);
+	ret = vfio_register_notifier(vfio_dev, VFIO_IOMMU_NOTIFY, &events,
+				     &vgpu->iommu_notifier);
 	if (ret != 0) {
 		gvt_vgpu_err("vfio_register_notifier for iommu failed: %d\n",
 			ret);
@@ -819,8 +819,8 @@ static int intel_vgpu_open_device(struct vfio_device *vfio_dev)
 	}
 
 	events = VFIO_GROUP_NOTIFY_SET_KVM;
-	ret = vfio_register_notifier(vfio_dev->dev, VFIO_GROUP_NOTIFY, &events,
-				&vgpu->group_notifier);
+	ret = vfio_register_notifier(vfio_dev, VFIO_GROUP_NOTIFY, &events,
+				     &vgpu->group_notifier);
 	if (ret != 0) {
 		gvt_vgpu_err("vfio_register_notifier for group failed: %d\n",
 			ret);
@@ -873,12 +873,12 @@ static int intel_vgpu_open_device(struct vfio_device *vfio_dev)
 	vgpu->vfio_group = NULL;
 
 undo_register:
-	vfio_unregister_notifier(vfio_dev->dev, VFIO_GROUP_NOTIFY,
-					&vgpu->group_notifier);
+	vfio_unregister_notifier(vfio_dev, VFIO_GROUP_NOTIFY,
+				 &vgpu->group_notifier);
 
 undo_iommu:
-	vfio_unregister_notifier(vfio_dev->dev, VFIO_IOMMU_NOTIFY,
-					&vgpu->iommu_notifier);
+	vfio_unregister_notifier(vfio_dev, VFIO_IOMMU_NOTIFY,
+				 &vgpu->iommu_notifier);
 out:
 	return ret;
 }
@@ -907,13 +907,13 @@ static void __intel_vgpu_release(struct intel_vgpu *vgpu)
 
 	intel_gvt_release_vgpu(vgpu);
 
-	ret = vfio_unregister_notifier(vgpu->vfio_device.dev, VFIO_IOMMU_NOTIFY,
-					&vgpu->iommu_notifier);
+	ret = vfio_unregister_notifier(&vgpu->vfio_device, VFIO_IOMMU_NOTIFY,
+				       &vgpu->iommu_notifier);
 	drm_WARN(&i915->drm, ret,
 		 "vfio_unregister_notifier for iommu failed: %d\n", ret);
 
-	ret = vfio_unregister_notifier(vgpu->vfio_device.dev, VFIO_GROUP_NOTIFY,
-					&vgpu->group_notifier);
+	ret = vfio_unregister_notifier(&vgpu->vfio_device, VFIO_GROUP_NOTIFY,
+				       &vgpu->group_notifier);
 	drm_WARN(&i915->drm, ret,
 		 "vfio_unregister_notifier for group failed: %d\n", ret);
 
diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c
index c4d60cdbf247bf..b49e2e9db2dc6f 100644
--- a/drivers/s390/cio/vfio_ccw_ops.c
+++ b/drivers/s390/cio/vfio_ccw_ops.c
@@ -183,7 +183,7 @@ static int vfio_ccw_mdev_open_device(struct vfio_device *vdev)
 
 	private->nb.notifier_call = vfio_ccw_mdev_notifier;
 
-	ret = vfio_register_notifier(vdev->dev, VFIO_IOMMU_NOTIFY,
+	ret = vfio_register_notifier(vdev, VFIO_IOMMU_NOTIFY,
 				     &events, &private->nb);
 	if (ret)
 		return ret;
@@ -204,8 +204,7 @@ static int vfio_ccw_mdev_open_device(struct vfio_device *vdev)
 
 out_unregister:
 	vfio_ccw_unregister_dev_regions(private);
-	vfio_unregister_notifier(vdev->dev, VFIO_IOMMU_NOTIFY,
-				 &private->nb);
+	vfio_unregister_notifier(vdev, VFIO_IOMMU_NOTIFY, &private->nb);
 	return ret;
 }
 
@@ -223,7 +222,7 @@ static void vfio_ccw_mdev_close_device(struct vfio_device *vdev)
 
 	cp_free(&private->cp);
 	vfio_ccw_unregister_dev_regions(private);
-	vfio_unregister_notifier(vdev->dev, VFIO_IOMMU_NOTIFY, &private->nb);
+	vfio_unregister_notifier(vdev, VFIO_IOMMU_NOTIFY, &private->nb);
 }
 
 static ssize_t vfio_ccw_mdev_read_io_region(struct vfio_ccw_private *private,
diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c
index ee0a3bf8f476ca..bfa7ee6ef532d9 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -1406,21 +1406,21 @@ static int vfio_ap_mdev_open_device(struct vfio_device *vdev)
 	matrix_mdev->group_notifier.notifier_call = vfio_ap_mdev_group_notifier;
 	events = VFIO_GROUP_NOTIFY_SET_KVM;
 
-	ret = vfio_register_notifier(vdev->dev, VFIO_GROUP_NOTIFY,
-				     &events, &matrix_mdev->group_notifier);
+	ret = vfio_register_notifier(vdev, VFIO_GROUP_NOTIFY, &events,
+				     &matrix_mdev->group_notifier);
 	if (ret)
 		return ret;
 
 	matrix_mdev->iommu_notifier.notifier_call = vfio_ap_mdev_iommu_notifier;
 	events = VFIO_IOMMU_NOTIFY_DMA_UNMAP;
-	ret = vfio_register_notifier(vdev->dev, VFIO_IOMMU_NOTIFY,
-				     &events, &matrix_mdev->iommu_notifier);
+	ret = vfio_register_notifier(vdev, VFIO_IOMMU_NOTIFY, &events,
+				     &matrix_mdev->iommu_notifier);
 	if (ret)
 		goto out_unregister_group;
 	return 0;
 
 out_unregister_group:
-	vfio_unregister_notifier(vdev->dev, VFIO_GROUP_NOTIFY,
+	vfio_unregister_notifier(vdev, VFIO_GROUP_NOTIFY,
 				 &matrix_mdev->group_notifier);
 	return ret;
 }
@@ -1430,9 +1430,9 @@ static void vfio_ap_mdev_close_device(struct vfio_device *vdev)
 	struct ap_matrix_mdev *matrix_mdev =
 		container_of(vdev, struct ap_matrix_mdev, vdev);
 
-	vfio_unregister_notifier(vdev->dev, VFIO_IOMMU_NOTIFY,
+	vfio_unregister_notifier(vdev, VFIO_IOMMU_NOTIFY,
 				 &matrix_mdev->iommu_notifier);
-	vfio_unregister_notifier(vdev->dev, VFIO_GROUP_NOTIFY,
+	vfio_unregister_notifier(vdev, VFIO_GROUP_NOTIFY,
 				 &matrix_mdev->group_notifier);
 	vfio_ap_mdev_unset_kvm(matrix_mdev);
 }
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 0c766384cee0f8..13494c1e497405 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -2269,19 +2269,15 @@ static int vfio_unregister_group_notifier(struct vfio_group *group,
 	return ret;
 }
 
-int vfio_register_notifier(struct device *dev, enum vfio_notify_type type,
+int vfio_register_notifier(struct vfio_device *dev, enum vfio_notify_type type,
 			   unsigned long *events, struct notifier_block *nb)
 {
-	struct vfio_group *group;
+	struct vfio_group *group = dev->group;
 	int ret;
 
-	if (!dev || !nb || !events || (*events == 0))
+	if (!nb || !events || (*events == 0))
 		return -EINVAL;
 
-	group = vfio_group_get_from_dev(dev);
-	if (!group)
-		return -ENODEV;
-
 	switch (type) {
 	case VFIO_IOMMU_NOTIFY:
 		ret = vfio_register_iommu_notifier(group, events, nb);
@@ -2292,25 +2288,20 @@ int vfio_register_notifier(struct device *dev, enum vfio_notify_type type,
 	default:
 		ret = -EINVAL;
 	}
-
-	vfio_group_put(group);
 	return ret;
 }
 EXPORT_SYMBOL(vfio_register_notifier);
 
-int vfio_unregister_notifier(struct device *dev, enum vfio_notify_type type,
+int vfio_unregister_notifier(struct vfio_device *dev,
+			     enum vfio_notify_type type,
 			     struct notifier_block *nb)
 {
-	struct vfio_group *group;
+	struct vfio_group *group = dev->group;
 	int ret;
 
-	if (!dev || !nb)
+	if (!nb)
 		return -EINVAL;
 
-	group = vfio_group_get_from_dev(dev);
-	if (!group)
-		return -ENODEV;
-
 	switch (type) {
 	case VFIO_IOMMU_NOTIFY:
 		ret = vfio_unregister_iommu_notifier(group, nb);
@@ -2321,8 +2312,6 @@ int vfio_unregister_notifier(struct device *dev, enum vfio_notify_type type,
 	default:
 		ret = -EINVAL;
 	}
-
-	vfio_group_put(group);
 	return ret;
 }
 EXPORT_SYMBOL(vfio_unregister_notifier);
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 66dda06ec42d1b..748ec0e0293aea 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -178,11 +178,11 @@ enum vfio_notify_type {
 /* events for VFIO_GROUP_NOTIFY */
 #define VFIO_GROUP_NOTIFY_SET_KVM	BIT(0)
 
-extern int vfio_register_notifier(struct device *dev,
+extern int vfio_register_notifier(struct vfio_device *dev,
 				  enum vfio_notify_type type,
 				  unsigned long *required_events,
 				  struct notifier_block *nb);
-extern int vfio_unregister_notifier(struct device *dev,
+extern int vfio_unregister_notifier(struct vfio_device *dev,
 				    enum vfio_notify_type type,
 				    struct notifier_block *nb);
 
-- 
2.36.0


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [PATCH v3 2/7] vfio/ccw: Remove mdev from struct channel_program
  2022-05-02 17:31 ` [Intel-gfx] " Jason Gunthorpe
@ 2022-05-02 17:31   ` Jason Gunthorpe
  -1 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Eric Farman, Christoph Hellwig, intel-gfx,
	intel-gvt-dev, Jason J. Herne, Tian, Kevin, kvm, Liu, Yi L

The next patch wants the vfio_device instead. There is no reason to store
a pointer here since we can container_of back to the vfio_device.

Reviewed-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/s390/cio/vfio_ccw_cp.c  | 47 ++++++++++++++++++++-------------
 drivers/s390/cio/vfio_ccw_cp.h  |  4 +--
 drivers/s390/cio/vfio_ccw_fsm.c |  3 +--
 3 files changed, 30 insertions(+), 24 deletions(-)

diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c
index 8d1b2771c1aa02..7a1cf3091cd647 100644
--- a/drivers/s390/cio/vfio_ccw_cp.c
+++ b/drivers/s390/cio/vfio_ccw_cp.c
@@ -16,6 +16,7 @@
 #include <asm/idals.h>
 
 #include "vfio_ccw_cp.h"
+#include "vfio_ccw_private.h"
 
 struct pfn_array {
 	/* Starting guest physical I/O address. */
@@ -98,17 +99,17 @@ static int pfn_array_alloc(struct pfn_array *pa, u64 iova, unsigned int len)
  * If the pin request partially succeeds, or fails completely,
  * all pages are left unpinned and a negative error value is returned.
  */
-static int pfn_array_pin(struct pfn_array *pa, struct device *mdev)
+static int pfn_array_pin(struct pfn_array *pa, struct vfio_device *vdev)
 {
 	int ret = 0;
 
-	ret = vfio_pin_pages(mdev, pa->pa_iova_pfn, pa->pa_nr,
+	ret = vfio_pin_pages(vdev->dev, pa->pa_iova_pfn, pa->pa_nr,
 			     IOMMU_READ | IOMMU_WRITE, pa->pa_pfn);
 
 	if (ret < 0) {
 		goto err_out;
 	} else if (ret > 0 && ret != pa->pa_nr) {
-		vfio_unpin_pages(mdev, pa->pa_iova_pfn, ret);
+		vfio_unpin_pages(vdev->dev, pa->pa_iova_pfn, ret);
 		ret = -EINVAL;
 		goto err_out;
 	}
@@ -122,11 +123,11 @@ static int pfn_array_pin(struct pfn_array *pa, struct device *mdev)
 }
 
 /* Unpin the pages before releasing the memory. */
-static void pfn_array_unpin_free(struct pfn_array *pa, struct device *mdev)
+static void pfn_array_unpin_free(struct pfn_array *pa, struct vfio_device *vdev)
 {
 	/* Only unpin if any pages were pinned to begin with */
 	if (pa->pa_nr)
-		vfio_unpin_pages(mdev, pa->pa_iova_pfn, pa->pa_nr);
+		vfio_unpin_pages(vdev->dev, pa->pa_iova_pfn, pa->pa_nr);
 	pa->pa_nr = 0;
 	kfree(pa->pa_iova_pfn);
 }
@@ -190,8 +191,7 @@ static void convert_ccw0_to_ccw1(struct ccw1 *source, unsigned long len)
  * Within the domain (@mdev), copy @n bytes from a guest physical
  * address (@iova) to a host physical address (@to).
  */
-static long copy_from_iova(struct device *mdev,
-			   void *to, u64 iova,
+static long copy_from_iova(struct vfio_device *vdev, void *to, u64 iova,
 			   unsigned long n)
 {
 	struct pfn_array pa = {0};
@@ -203,9 +203,9 @@ static long copy_from_iova(struct device *mdev,
 	if (ret < 0)
 		return ret;
 
-	ret = pfn_array_pin(&pa, mdev);
+	ret = pfn_array_pin(&pa, vdev);
 	if (ret < 0) {
-		pfn_array_unpin_free(&pa, mdev);
+		pfn_array_unpin_free(&pa, vdev);
 		return ret;
 	}
 
@@ -226,7 +226,7 @@ static long copy_from_iova(struct device *mdev,
 			break;
 	}
 
-	pfn_array_unpin_free(&pa, mdev);
+	pfn_array_unpin_free(&pa, vdev);
 
 	return l;
 }
@@ -423,11 +423,13 @@ static int ccwchain_loop_tic(struct ccwchain *chain,
 
 static int ccwchain_handle_ccw(u32 cda, struct channel_program *cp)
 {
+	struct vfio_device *vdev =
+		&container_of(cp, struct vfio_ccw_private, cp)->vdev;
 	struct ccwchain *chain;
 	int len, ret;
 
 	/* Copy 2K (the most we support today) of possible CCWs */
-	len = copy_from_iova(cp->mdev, cp->guest_cp, cda,
+	len = copy_from_iova(vdev, cp->guest_cp, cda,
 			     CCWCHAIN_LEN_MAX * sizeof(struct ccw1));
 	if (len)
 		return len;
@@ -508,6 +510,8 @@ static int ccwchain_fetch_direct(struct ccwchain *chain,
 				 int idx,
 				 struct channel_program *cp)
 {
+	struct vfio_device *vdev =
+		&container_of(cp, struct vfio_ccw_private, cp)->vdev;
 	struct ccw1 *ccw;
 	struct pfn_array *pa;
 	u64 iova;
@@ -526,7 +530,7 @@ static int ccwchain_fetch_direct(struct ccwchain *chain,
 	if (ccw_is_idal(ccw)) {
 		/* Read first IDAW to see if it's 4K-aligned or not. */
 		/* All subsequent IDAws will be 4K-aligned. */
-		ret = copy_from_iova(cp->mdev, &iova, ccw->cda, sizeof(iova));
+		ret = copy_from_iova(vdev, &iova, ccw->cda, sizeof(iova));
 		if (ret)
 			return ret;
 	} else {
@@ -555,7 +559,7 @@ static int ccwchain_fetch_direct(struct ccwchain *chain,
 
 	if (ccw_is_idal(ccw)) {
 		/* Copy guest IDAL into host IDAL */
-		ret = copy_from_iova(cp->mdev, idaws, ccw->cda, idal_len);
+		ret = copy_from_iova(vdev, idaws, ccw->cda, idal_len);
 		if (ret)
 			goto out_unpin;
 
@@ -574,7 +578,7 @@ static int ccwchain_fetch_direct(struct ccwchain *chain,
 	}
 
 	if (ccw_does_data_transfer(ccw)) {
-		ret = pfn_array_pin(pa, cp->mdev);
+		ret = pfn_array_pin(pa, vdev);
 		if (ret < 0)
 			goto out_unpin;
 	} else {
@@ -590,7 +594,7 @@ static int ccwchain_fetch_direct(struct ccwchain *chain,
 	return 0;
 
 out_unpin:
-	pfn_array_unpin_free(pa, cp->mdev);
+	pfn_array_unpin_free(pa, vdev);
 out_free_idaws:
 	kfree(idaws);
 out_init:
@@ -632,8 +636,10 @@ static int ccwchain_fetch_one(struct ccwchain *chain,
  * Returns:
  *   %0 on success and a negative error value on failure.
  */
-int cp_init(struct channel_program *cp, struct device *mdev, union orb *orb)
+int cp_init(struct channel_program *cp, union orb *orb)
 {
+	struct vfio_device *vdev =
+		&container_of(cp, struct vfio_ccw_private, cp)->vdev;
 	/* custom ratelimit used to avoid flood during guest IPL */
 	static DEFINE_RATELIMIT_STATE(ratelimit_state, 5 * HZ, 1);
 	int ret;
@@ -650,11 +656,12 @@ int cp_init(struct channel_program *cp, struct device *mdev, union orb *orb)
 	 * the problem if something does break.
 	 */
 	if (!orb->cmd.pfch && __ratelimit(&ratelimit_state))
-		dev_warn(mdev, "Prefetching channel program even though prefetch not specified in ORB");
+		dev_warn(
+			vdev->dev,
+			"Prefetching channel program even though prefetch not specified in ORB");
 
 	INIT_LIST_HEAD(&cp->ccwchain_list);
 	memcpy(&cp->orb, orb, sizeof(*orb));
-	cp->mdev = mdev;
 
 	/* Build a ccwchain for the first CCW segment */
 	ret = ccwchain_handle_ccw(orb->cmd.cpa, cp);
@@ -682,6 +689,8 @@ int cp_init(struct channel_program *cp, struct device *mdev, union orb *orb)
  */
 void cp_free(struct channel_program *cp)
 {
+	struct vfio_device *vdev =
+		&container_of(cp, struct vfio_ccw_private, cp)->vdev;
 	struct ccwchain *chain, *temp;
 	int i;
 
@@ -691,7 +700,7 @@ void cp_free(struct channel_program *cp)
 	cp->initialized = false;
 	list_for_each_entry_safe(chain, temp, &cp->ccwchain_list, next) {
 		for (i = 0; i < chain->ch_len; i++) {
-			pfn_array_unpin_free(chain->ch_pa + i, cp->mdev);
+			pfn_array_unpin_free(chain->ch_pa + i, vdev);
 			ccwchain_cda_free(chain, i);
 		}
 		ccwchain_free(chain);
diff --git a/drivers/s390/cio/vfio_ccw_cp.h b/drivers/s390/cio/vfio_ccw_cp.h
index ba31240ce96594..e4c436199b4cda 100644
--- a/drivers/s390/cio/vfio_ccw_cp.h
+++ b/drivers/s390/cio/vfio_ccw_cp.h
@@ -37,13 +37,11 @@
 struct channel_program {
 	struct list_head ccwchain_list;
 	union orb orb;
-	struct device *mdev;
 	bool initialized;
 	struct ccw1 *guest_cp;
 };
 
-extern int cp_init(struct channel_program *cp, struct device *mdev,
-		   union orb *orb);
+extern int cp_init(struct channel_program *cp, union orb *orb);
 extern void cp_free(struct channel_program *cp);
 extern int cp_prefetch(struct channel_program *cp);
 extern union orb *cp_get_orb(struct channel_program *cp, u32 intparm, u8 lpm);
diff --git a/drivers/s390/cio/vfio_ccw_fsm.c b/drivers/s390/cio/vfio_ccw_fsm.c
index e435a9cd92dacf..8483a266051c21 100644
--- a/drivers/s390/cio/vfio_ccw_fsm.c
+++ b/drivers/s390/cio/vfio_ccw_fsm.c
@@ -262,8 +262,7 @@ static void fsm_io_request(struct vfio_ccw_private *private,
 			errstr = "transport mode";
 			goto err_out;
 		}
-		io_region->ret_code = cp_init(&private->cp, mdev_dev(mdev),
-					      orb);
+		io_region->ret_code = cp_init(&private->cp, orb);
 		if (io_region->ret_code) {
 			VFIO_CCW_MSG_EVENT(2,
 					   "%pUl (%x.%x.%04x): cp_init=%d\n",
-- 
2.36.0


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [Intel-gfx] [PATCH v3 2/7] vfio/ccw: Remove mdev from struct channel_program
@ 2022-05-02 17:31   ` Jason Gunthorpe
  0 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Jason J. Herne, Eric Farman, Liu, Yi L, kvm,
	intel-gfx, intel-gvt-dev, Christoph Hellwig

The next patch wants the vfio_device instead. There is no reason to store
a pointer here since we can container_of back to the vfio_device.

Reviewed-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/s390/cio/vfio_ccw_cp.c  | 47 ++++++++++++++++++++-------------
 drivers/s390/cio/vfio_ccw_cp.h  |  4 +--
 drivers/s390/cio/vfio_ccw_fsm.c |  3 +--
 3 files changed, 30 insertions(+), 24 deletions(-)

diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c
index 8d1b2771c1aa02..7a1cf3091cd647 100644
--- a/drivers/s390/cio/vfio_ccw_cp.c
+++ b/drivers/s390/cio/vfio_ccw_cp.c
@@ -16,6 +16,7 @@
 #include <asm/idals.h>
 
 #include "vfio_ccw_cp.h"
+#include "vfio_ccw_private.h"
 
 struct pfn_array {
 	/* Starting guest physical I/O address. */
@@ -98,17 +99,17 @@ static int pfn_array_alloc(struct pfn_array *pa, u64 iova, unsigned int len)
  * If the pin request partially succeeds, or fails completely,
  * all pages are left unpinned and a negative error value is returned.
  */
-static int pfn_array_pin(struct pfn_array *pa, struct device *mdev)
+static int pfn_array_pin(struct pfn_array *pa, struct vfio_device *vdev)
 {
 	int ret = 0;
 
-	ret = vfio_pin_pages(mdev, pa->pa_iova_pfn, pa->pa_nr,
+	ret = vfio_pin_pages(vdev->dev, pa->pa_iova_pfn, pa->pa_nr,
 			     IOMMU_READ | IOMMU_WRITE, pa->pa_pfn);
 
 	if (ret < 0) {
 		goto err_out;
 	} else if (ret > 0 && ret != pa->pa_nr) {
-		vfio_unpin_pages(mdev, pa->pa_iova_pfn, ret);
+		vfio_unpin_pages(vdev->dev, pa->pa_iova_pfn, ret);
 		ret = -EINVAL;
 		goto err_out;
 	}
@@ -122,11 +123,11 @@ static int pfn_array_pin(struct pfn_array *pa, struct device *mdev)
 }
 
 /* Unpin the pages before releasing the memory. */
-static void pfn_array_unpin_free(struct pfn_array *pa, struct device *mdev)
+static void pfn_array_unpin_free(struct pfn_array *pa, struct vfio_device *vdev)
 {
 	/* Only unpin if any pages were pinned to begin with */
 	if (pa->pa_nr)
-		vfio_unpin_pages(mdev, pa->pa_iova_pfn, pa->pa_nr);
+		vfio_unpin_pages(vdev->dev, pa->pa_iova_pfn, pa->pa_nr);
 	pa->pa_nr = 0;
 	kfree(pa->pa_iova_pfn);
 }
@@ -190,8 +191,7 @@ static void convert_ccw0_to_ccw1(struct ccw1 *source, unsigned long len)
  * Within the domain (@mdev), copy @n bytes from a guest physical
  * address (@iova) to a host physical address (@to).
  */
-static long copy_from_iova(struct device *mdev,
-			   void *to, u64 iova,
+static long copy_from_iova(struct vfio_device *vdev, void *to, u64 iova,
 			   unsigned long n)
 {
 	struct pfn_array pa = {0};
@@ -203,9 +203,9 @@ static long copy_from_iova(struct device *mdev,
 	if (ret < 0)
 		return ret;
 
-	ret = pfn_array_pin(&pa, mdev);
+	ret = pfn_array_pin(&pa, vdev);
 	if (ret < 0) {
-		pfn_array_unpin_free(&pa, mdev);
+		pfn_array_unpin_free(&pa, vdev);
 		return ret;
 	}
 
@@ -226,7 +226,7 @@ static long copy_from_iova(struct device *mdev,
 			break;
 	}
 
-	pfn_array_unpin_free(&pa, mdev);
+	pfn_array_unpin_free(&pa, vdev);
 
 	return l;
 }
@@ -423,11 +423,13 @@ static int ccwchain_loop_tic(struct ccwchain *chain,
 
 static int ccwchain_handle_ccw(u32 cda, struct channel_program *cp)
 {
+	struct vfio_device *vdev =
+		&container_of(cp, struct vfio_ccw_private, cp)->vdev;
 	struct ccwchain *chain;
 	int len, ret;
 
 	/* Copy 2K (the most we support today) of possible CCWs */
-	len = copy_from_iova(cp->mdev, cp->guest_cp, cda,
+	len = copy_from_iova(vdev, cp->guest_cp, cda,
 			     CCWCHAIN_LEN_MAX * sizeof(struct ccw1));
 	if (len)
 		return len;
@@ -508,6 +510,8 @@ static int ccwchain_fetch_direct(struct ccwchain *chain,
 				 int idx,
 				 struct channel_program *cp)
 {
+	struct vfio_device *vdev =
+		&container_of(cp, struct vfio_ccw_private, cp)->vdev;
 	struct ccw1 *ccw;
 	struct pfn_array *pa;
 	u64 iova;
@@ -526,7 +530,7 @@ static int ccwchain_fetch_direct(struct ccwchain *chain,
 	if (ccw_is_idal(ccw)) {
 		/* Read first IDAW to see if it's 4K-aligned or not. */
 		/* All subsequent IDAws will be 4K-aligned. */
-		ret = copy_from_iova(cp->mdev, &iova, ccw->cda, sizeof(iova));
+		ret = copy_from_iova(vdev, &iova, ccw->cda, sizeof(iova));
 		if (ret)
 			return ret;
 	} else {
@@ -555,7 +559,7 @@ static int ccwchain_fetch_direct(struct ccwchain *chain,
 
 	if (ccw_is_idal(ccw)) {
 		/* Copy guest IDAL into host IDAL */
-		ret = copy_from_iova(cp->mdev, idaws, ccw->cda, idal_len);
+		ret = copy_from_iova(vdev, idaws, ccw->cda, idal_len);
 		if (ret)
 			goto out_unpin;
 
@@ -574,7 +578,7 @@ static int ccwchain_fetch_direct(struct ccwchain *chain,
 	}
 
 	if (ccw_does_data_transfer(ccw)) {
-		ret = pfn_array_pin(pa, cp->mdev);
+		ret = pfn_array_pin(pa, vdev);
 		if (ret < 0)
 			goto out_unpin;
 	} else {
@@ -590,7 +594,7 @@ static int ccwchain_fetch_direct(struct ccwchain *chain,
 	return 0;
 
 out_unpin:
-	pfn_array_unpin_free(pa, cp->mdev);
+	pfn_array_unpin_free(pa, vdev);
 out_free_idaws:
 	kfree(idaws);
 out_init:
@@ -632,8 +636,10 @@ static int ccwchain_fetch_one(struct ccwchain *chain,
  * Returns:
  *   %0 on success and a negative error value on failure.
  */
-int cp_init(struct channel_program *cp, struct device *mdev, union orb *orb)
+int cp_init(struct channel_program *cp, union orb *orb)
 {
+	struct vfio_device *vdev =
+		&container_of(cp, struct vfio_ccw_private, cp)->vdev;
 	/* custom ratelimit used to avoid flood during guest IPL */
 	static DEFINE_RATELIMIT_STATE(ratelimit_state, 5 * HZ, 1);
 	int ret;
@@ -650,11 +656,12 @@ int cp_init(struct channel_program *cp, struct device *mdev, union orb *orb)
 	 * the problem if something does break.
 	 */
 	if (!orb->cmd.pfch && __ratelimit(&ratelimit_state))
-		dev_warn(mdev, "Prefetching channel program even though prefetch not specified in ORB");
+		dev_warn(
+			vdev->dev,
+			"Prefetching channel program even though prefetch not specified in ORB");
 
 	INIT_LIST_HEAD(&cp->ccwchain_list);
 	memcpy(&cp->orb, orb, sizeof(*orb));
-	cp->mdev = mdev;
 
 	/* Build a ccwchain for the first CCW segment */
 	ret = ccwchain_handle_ccw(orb->cmd.cpa, cp);
@@ -682,6 +689,8 @@ int cp_init(struct channel_program *cp, struct device *mdev, union orb *orb)
  */
 void cp_free(struct channel_program *cp)
 {
+	struct vfio_device *vdev =
+		&container_of(cp, struct vfio_ccw_private, cp)->vdev;
 	struct ccwchain *chain, *temp;
 	int i;
 
@@ -691,7 +700,7 @@ void cp_free(struct channel_program *cp)
 	cp->initialized = false;
 	list_for_each_entry_safe(chain, temp, &cp->ccwchain_list, next) {
 		for (i = 0; i < chain->ch_len; i++) {
-			pfn_array_unpin_free(chain->ch_pa + i, cp->mdev);
+			pfn_array_unpin_free(chain->ch_pa + i, vdev);
 			ccwchain_cda_free(chain, i);
 		}
 		ccwchain_free(chain);
diff --git a/drivers/s390/cio/vfio_ccw_cp.h b/drivers/s390/cio/vfio_ccw_cp.h
index ba31240ce96594..e4c436199b4cda 100644
--- a/drivers/s390/cio/vfio_ccw_cp.h
+++ b/drivers/s390/cio/vfio_ccw_cp.h
@@ -37,13 +37,11 @@
 struct channel_program {
 	struct list_head ccwchain_list;
 	union orb orb;
-	struct device *mdev;
 	bool initialized;
 	struct ccw1 *guest_cp;
 };
 
-extern int cp_init(struct channel_program *cp, struct device *mdev,
-		   union orb *orb);
+extern int cp_init(struct channel_program *cp, union orb *orb);
 extern void cp_free(struct channel_program *cp);
 extern int cp_prefetch(struct channel_program *cp);
 extern union orb *cp_get_orb(struct channel_program *cp, u32 intparm, u8 lpm);
diff --git a/drivers/s390/cio/vfio_ccw_fsm.c b/drivers/s390/cio/vfio_ccw_fsm.c
index e435a9cd92dacf..8483a266051c21 100644
--- a/drivers/s390/cio/vfio_ccw_fsm.c
+++ b/drivers/s390/cio/vfio_ccw_fsm.c
@@ -262,8 +262,7 @@ static void fsm_io_request(struct vfio_ccw_private *private,
 			errstr = "transport mode";
 			goto err_out;
 		}
-		io_region->ret_code = cp_init(&private->cp, mdev_dev(mdev),
-					      orb);
+		io_region->ret_code = cp_init(&private->cp, orb);
 		if (io_region->ret_code) {
 			VFIO_CCW_MSG_EVENT(2,
 					   "%pUl (%x.%x.%04x): cp_init=%d\n",
-- 
2.36.0


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [PATCH v3 3/7] vfio/mdev: Pass in a struct vfio_device * to vfio_pin/unpin_pages()
  2022-05-02 17:31 ` [Intel-gfx] " Jason Gunthorpe
@ 2022-05-02 17:31   ` Jason Gunthorpe
  -1 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Eric Farman, Christoph Hellwig, intel-gfx,
	intel-gvt-dev, Jason J. Herne, Tian, Kevin, kvm, Liu, Yi L

Every caller has a readily available vfio_device pointer, use that instead
of passing in a generic struct device. The struct vfio_device already
contains the group we need so this avoids complexity, extra refcountings,
and a confusing lifecycle model.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 .../driver-api/vfio-mediated-device.rst       |  4 +-
 drivers/s390/cio/vfio_ccw_cp.c                |  6 +--
 drivers/s390/crypto/vfio_ap_ops.c             |  9 ++---
 drivers/vfio/vfio.c                           | 40 ++++++-------------
 include/linux/vfio.h                          |  4 +-
 5 files changed, 24 insertions(+), 39 deletions(-)

diff --git a/Documentation/driver-api/vfio-mediated-device.rst b/Documentation/driver-api/vfio-mediated-device.rst
index 784bbeb22adcf5..2f9e6025eb2fe1 100644
--- a/Documentation/driver-api/vfio-mediated-device.rst
+++ b/Documentation/driver-api/vfio-mediated-device.rst
@@ -262,10 +262,10 @@ Translation APIs for Mediated Devices
 The following APIs are provided for translating user pfn to host pfn in a VFIO
 driver::
 
-	extern int vfio_pin_pages(struct device *dev, unsigned long *user_pfn,
+	int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 				  int npage, int prot, unsigned long *phys_pfn);
 
-	extern int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn,
+	int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 				    int npage);
 
 These functions call back into the back-end IOMMU module by using the pin_pages
diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c
index 7a1cf3091cd647..0c2be9421ab78f 100644
--- a/drivers/s390/cio/vfio_ccw_cp.c
+++ b/drivers/s390/cio/vfio_ccw_cp.c
@@ -103,13 +103,13 @@ static int pfn_array_pin(struct pfn_array *pa, struct vfio_device *vdev)
 {
 	int ret = 0;
 
-	ret = vfio_pin_pages(vdev->dev, pa->pa_iova_pfn, pa->pa_nr,
+	ret = vfio_pin_pages(vdev, pa->pa_iova_pfn, pa->pa_nr,
 			     IOMMU_READ | IOMMU_WRITE, pa->pa_pfn);
 
 	if (ret < 0) {
 		goto err_out;
 	} else if (ret > 0 && ret != pa->pa_nr) {
-		vfio_unpin_pages(vdev->dev, pa->pa_iova_pfn, ret);
+		vfio_unpin_pages(vdev, pa->pa_iova_pfn, ret);
 		ret = -EINVAL;
 		goto err_out;
 	}
@@ -127,7 +127,7 @@ static void pfn_array_unpin_free(struct pfn_array *pa, struct vfio_device *vdev)
 {
 	/* Only unpin if any pages were pinned to begin with */
 	if (pa->pa_nr)
-		vfio_unpin_pages(vdev->dev, pa->pa_iova_pfn, pa->pa_nr);
+		vfio_unpin_pages(vdev, pa->pa_iova_pfn, pa->pa_nr);
 	pa->pa_nr = 0;
 	kfree(pa->pa_iova_pfn);
 }
diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c
index bfa7ee6ef532d9..e8914024f5b1af 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -124,8 +124,7 @@ static void vfio_ap_free_aqic_resources(struct vfio_ap_queue *q)
 		q->saved_isc = VFIO_AP_ISC_INVALID;
 	}
 	if (q->saved_pfn && !WARN_ON(!q->matrix_mdev)) {
-		vfio_unpin_pages(mdev_dev(q->matrix_mdev->mdev),
-				 &q->saved_pfn, 1);
+		vfio_unpin_pages(&q->matrix_mdev->vdev, &q->saved_pfn, 1);
 		q->saved_pfn = 0;
 	}
 }
@@ -258,7 +257,7 @@ static struct ap_queue_status vfio_ap_irq_enable(struct vfio_ap_queue *q,
 		return status;
 	}
 
-	ret = vfio_pin_pages(mdev_dev(q->matrix_mdev->mdev), &g_pfn, 1,
+	ret = vfio_pin_pages(&q->matrix_mdev->vdev, &g_pfn, 1,
 			     IOMMU_READ | IOMMU_WRITE, &h_pfn);
 	switch (ret) {
 	case 1:
@@ -301,7 +300,7 @@ static struct ap_queue_status vfio_ap_irq_enable(struct vfio_ap_queue *q,
 		break;
 	case AP_RESPONSE_OTHERWISE_CHANGED:
 		/* We could not modify IRQ setings: clear new configuration */
-		vfio_unpin_pages(mdev_dev(q->matrix_mdev->mdev), &g_pfn, 1);
+		vfio_unpin_pages(&q->matrix_mdev->vdev, &g_pfn, 1);
 		kvm_s390_gisc_unregister(kvm, isc);
 		break;
 	default:
@@ -1250,7 +1249,7 @@ static int vfio_ap_mdev_iommu_notifier(struct notifier_block *nb,
 		struct vfio_iommu_type1_dma_unmap *unmap = data;
 		unsigned long g_pfn = unmap->iova >> PAGE_SHIFT;
 
-		vfio_unpin_pages(mdev_dev(matrix_mdev->mdev), &g_pfn, 1);
+		vfio_unpin_pages(&matrix_mdev->vdev, &g_pfn, 1);
 		return NOTIFY_OK;
 	}
 
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 13494c1e497405..dc5d40b07e2381 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -1927,32 +1927,26 @@ EXPORT_SYMBOL(vfio_set_irqs_validate_and_prepare);
  * @phys_pfn[out]: array of host PFNs
  * Return error or number of pages pinned.
  */
-int vfio_pin_pages(struct device *dev, unsigned long *user_pfn, int npage,
+int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn, int npage,
 		   int prot, unsigned long *phys_pfn)
 {
 	struct vfio_container *container;
-	struct vfio_group *group;
+	struct vfio_group *group = vdev->group;
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	if (!dev || !user_pfn || !phys_pfn || !npage)
+	if (!user_pfn || !phys_pfn || !npage)
 		return -EINVAL;
 
 	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
 		return -E2BIG;
 
-	group = vfio_group_get_from_dev(dev);
-	if (!group)
-		return -ENODEV;
-
-	if (group->dev_counter > 1) {
-		ret = -EINVAL;
-		goto err_pin_pages;
-	}
+	if (group->dev_counter > 1)
+		return -EINVAL;
 
 	ret = vfio_group_add_container_user(group);
 	if (ret)
-		goto err_pin_pages;
+		return ret;
 
 	container = group->container;
 	driver = container->iommu_driver;
@@ -1965,8 +1959,6 @@ int vfio_pin_pages(struct device *dev, unsigned long *user_pfn, int npage,
 
 	vfio_group_try_dissolve_container(group);
 
-err_pin_pages:
-	vfio_group_put(group);
 	return ret;
 }
 EXPORT_SYMBOL(vfio_pin_pages);
@@ -1980,28 +1972,24 @@ EXPORT_SYMBOL(vfio_pin_pages);
  *                 be greater than VFIO_PIN_PAGES_MAX_ENTRIES.
  * Return error or number of pages unpinned.
  */
-int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn, int npage)
+int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
+		     int npage)
 {
 	struct vfio_container *container;
-	struct vfio_group *group;
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	if (!dev || !user_pfn || !npage)
+	if (!user_pfn || !npage)
 		return -EINVAL;
 
 	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
 		return -E2BIG;
 
-	group = vfio_group_get_from_dev(dev);
-	if (!group)
-		return -ENODEV;
-
-	ret = vfio_group_add_container_user(group);
+	ret = vfio_group_add_container_user(vdev->group);
 	if (ret)
-		goto err_unpin_pages;
+		return ret;
 
-	container = group->container;
+	container = vdev->group->container;
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->unpin_pages))
 		ret = driver->ops->unpin_pages(container->iommu_data, user_pfn,
@@ -2009,10 +1997,8 @@ int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn, int npage)
 	else
 		ret = -ENOTTY;
 
-	vfio_group_try_dissolve_container(group);
+	vfio_group_try_dissolve_container(vdev->group);
 
-err_unpin_pages:
-	vfio_group_put(group);
 	return ret;
 }
 EXPORT_SYMBOL(vfio_unpin_pages);
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 748ec0e0293aea..8f2a09801a660b 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -150,9 +150,9 @@ extern long vfio_external_check_extension(struct vfio_group *group,
 
 #define VFIO_PIN_PAGES_MAX_ENTRIES	(PAGE_SIZE/sizeof(unsigned long))
 
-extern int vfio_pin_pages(struct device *dev, unsigned long *user_pfn,
+extern int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 			  int npage, int prot, unsigned long *phys_pfn);
-extern int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn,
+extern int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 			    int npage);
 
 extern int vfio_group_pin_pages(struct vfio_group *group,
-- 
2.36.0


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [Intel-gfx] [PATCH v3 3/7] vfio/mdev: Pass in a struct vfio_device * to vfio_pin/unpin_pages()
@ 2022-05-02 17:31   ` Jason Gunthorpe
  0 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Jason J. Herne, Eric Farman, Liu, Yi L, kvm,
	intel-gfx, intel-gvt-dev, Christoph Hellwig

Every caller has a readily available vfio_device pointer, use that instead
of passing in a generic struct device. The struct vfio_device already
contains the group we need so this avoids complexity, extra refcountings,
and a confusing lifecycle model.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 .../driver-api/vfio-mediated-device.rst       |  4 +-
 drivers/s390/cio/vfio_ccw_cp.c                |  6 +--
 drivers/s390/crypto/vfio_ap_ops.c             |  9 ++---
 drivers/vfio/vfio.c                           | 40 ++++++-------------
 include/linux/vfio.h                          |  4 +-
 5 files changed, 24 insertions(+), 39 deletions(-)

diff --git a/Documentation/driver-api/vfio-mediated-device.rst b/Documentation/driver-api/vfio-mediated-device.rst
index 784bbeb22adcf5..2f9e6025eb2fe1 100644
--- a/Documentation/driver-api/vfio-mediated-device.rst
+++ b/Documentation/driver-api/vfio-mediated-device.rst
@@ -262,10 +262,10 @@ Translation APIs for Mediated Devices
 The following APIs are provided for translating user pfn to host pfn in a VFIO
 driver::
 
-	extern int vfio_pin_pages(struct device *dev, unsigned long *user_pfn,
+	int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 				  int npage, int prot, unsigned long *phys_pfn);
 
-	extern int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn,
+	int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 				    int npage);
 
 These functions call back into the back-end IOMMU module by using the pin_pages
diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c
index 7a1cf3091cd647..0c2be9421ab78f 100644
--- a/drivers/s390/cio/vfio_ccw_cp.c
+++ b/drivers/s390/cio/vfio_ccw_cp.c
@@ -103,13 +103,13 @@ static int pfn_array_pin(struct pfn_array *pa, struct vfio_device *vdev)
 {
 	int ret = 0;
 
-	ret = vfio_pin_pages(vdev->dev, pa->pa_iova_pfn, pa->pa_nr,
+	ret = vfio_pin_pages(vdev, pa->pa_iova_pfn, pa->pa_nr,
 			     IOMMU_READ | IOMMU_WRITE, pa->pa_pfn);
 
 	if (ret < 0) {
 		goto err_out;
 	} else if (ret > 0 && ret != pa->pa_nr) {
-		vfio_unpin_pages(vdev->dev, pa->pa_iova_pfn, ret);
+		vfio_unpin_pages(vdev, pa->pa_iova_pfn, ret);
 		ret = -EINVAL;
 		goto err_out;
 	}
@@ -127,7 +127,7 @@ static void pfn_array_unpin_free(struct pfn_array *pa, struct vfio_device *vdev)
 {
 	/* Only unpin if any pages were pinned to begin with */
 	if (pa->pa_nr)
-		vfio_unpin_pages(vdev->dev, pa->pa_iova_pfn, pa->pa_nr);
+		vfio_unpin_pages(vdev, pa->pa_iova_pfn, pa->pa_nr);
 	pa->pa_nr = 0;
 	kfree(pa->pa_iova_pfn);
 }
diff --git a/drivers/s390/crypto/vfio_ap_ops.c b/drivers/s390/crypto/vfio_ap_ops.c
index bfa7ee6ef532d9..e8914024f5b1af 100644
--- a/drivers/s390/crypto/vfio_ap_ops.c
+++ b/drivers/s390/crypto/vfio_ap_ops.c
@@ -124,8 +124,7 @@ static void vfio_ap_free_aqic_resources(struct vfio_ap_queue *q)
 		q->saved_isc = VFIO_AP_ISC_INVALID;
 	}
 	if (q->saved_pfn && !WARN_ON(!q->matrix_mdev)) {
-		vfio_unpin_pages(mdev_dev(q->matrix_mdev->mdev),
-				 &q->saved_pfn, 1);
+		vfio_unpin_pages(&q->matrix_mdev->vdev, &q->saved_pfn, 1);
 		q->saved_pfn = 0;
 	}
 }
@@ -258,7 +257,7 @@ static struct ap_queue_status vfio_ap_irq_enable(struct vfio_ap_queue *q,
 		return status;
 	}
 
-	ret = vfio_pin_pages(mdev_dev(q->matrix_mdev->mdev), &g_pfn, 1,
+	ret = vfio_pin_pages(&q->matrix_mdev->vdev, &g_pfn, 1,
 			     IOMMU_READ | IOMMU_WRITE, &h_pfn);
 	switch (ret) {
 	case 1:
@@ -301,7 +300,7 @@ static struct ap_queue_status vfio_ap_irq_enable(struct vfio_ap_queue *q,
 		break;
 	case AP_RESPONSE_OTHERWISE_CHANGED:
 		/* We could not modify IRQ setings: clear new configuration */
-		vfio_unpin_pages(mdev_dev(q->matrix_mdev->mdev), &g_pfn, 1);
+		vfio_unpin_pages(&q->matrix_mdev->vdev, &g_pfn, 1);
 		kvm_s390_gisc_unregister(kvm, isc);
 		break;
 	default:
@@ -1250,7 +1249,7 @@ static int vfio_ap_mdev_iommu_notifier(struct notifier_block *nb,
 		struct vfio_iommu_type1_dma_unmap *unmap = data;
 		unsigned long g_pfn = unmap->iova >> PAGE_SHIFT;
 
-		vfio_unpin_pages(mdev_dev(matrix_mdev->mdev), &g_pfn, 1);
+		vfio_unpin_pages(&matrix_mdev->vdev, &g_pfn, 1);
 		return NOTIFY_OK;
 	}
 
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 13494c1e497405..dc5d40b07e2381 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -1927,32 +1927,26 @@ EXPORT_SYMBOL(vfio_set_irqs_validate_and_prepare);
  * @phys_pfn[out]: array of host PFNs
  * Return error or number of pages pinned.
  */
-int vfio_pin_pages(struct device *dev, unsigned long *user_pfn, int npage,
+int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn, int npage,
 		   int prot, unsigned long *phys_pfn)
 {
 	struct vfio_container *container;
-	struct vfio_group *group;
+	struct vfio_group *group = vdev->group;
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	if (!dev || !user_pfn || !phys_pfn || !npage)
+	if (!user_pfn || !phys_pfn || !npage)
 		return -EINVAL;
 
 	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
 		return -E2BIG;
 
-	group = vfio_group_get_from_dev(dev);
-	if (!group)
-		return -ENODEV;
-
-	if (group->dev_counter > 1) {
-		ret = -EINVAL;
-		goto err_pin_pages;
-	}
+	if (group->dev_counter > 1)
+		return -EINVAL;
 
 	ret = vfio_group_add_container_user(group);
 	if (ret)
-		goto err_pin_pages;
+		return ret;
 
 	container = group->container;
 	driver = container->iommu_driver;
@@ -1965,8 +1959,6 @@ int vfio_pin_pages(struct device *dev, unsigned long *user_pfn, int npage,
 
 	vfio_group_try_dissolve_container(group);
 
-err_pin_pages:
-	vfio_group_put(group);
 	return ret;
 }
 EXPORT_SYMBOL(vfio_pin_pages);
@@ -1980,28 +1972,24 @@ EXPORT_SYMBOL(vfio_pin_pages);
  *                 be greater than VFIO_PIN_PAGES_MAX_ENTRIES.
  * Return error or number of pages unpinned.
  */
-int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn, int npage)
+int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
+		     int npage)
 {
 	struct vfio_container *container;
-	struct vfio_group *group;
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	if (!dev || !user_pfn || !npage)
+	if (!user_pfn || !npage)
 		return -EINVAL;
 
 	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
 		return -E2BIG;
 
-	group = vfio_group_get_from_dev(dev);
-	if (!group)
-		return -ENODEV;
-
-	ret = vfio_group_add_container_user(group);
+	ret = vfio_group_add_container_user(vdev->group);
 	if (ret)
-		goto err_unpin_pages;
+		return ret;
 
-	container = group->container;
+	container = vdev->group->container;
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->unpin_pages))
 		ret = driver->ops->unpin_pages(container->iommu_data, user_pfn,
@@ -2009,10 +1997,8 @@ int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn, int npage)
 	else
 		ret = -ENOTTY;
 
-	vfio_group_try_dissolve_container(group);
+	vfio_group_try_dissolve_container(vdev->group);
 
-err_unpin_pages:
-	vfio_group_put(group);
 	return ret;
 }
 EXPORT_SYMBOL(vfio_unpin_pages);
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 748ec0e0293aea..8f2a09801a660b 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -150,9 +150,9 @@ extern long vfio_external_check_extension(struct vfio_group *group,
 
 #define VFIO_PIN_PAGES_MAX_ENTRIES	(PAGE_SIZE/sizeof(unsigned long))
 
-extern int vfio_pin_pages(struct device *dev, unsigned long *user_pfn,
+extern int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 			  int npage, int prot, unsigned long *phys_pfn);
-extern int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn,
+extern int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 			    int npage);
 
 extern int vfio_group_pin_pages(struct vfio_group *group,
-- 
2.36.0


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [PATCH v3 4/7] vfio/mdev: Pass in a struct vfio_device * to vfio_dma_rw()
  2022-05-02 17:31 ` [Intel-gfx] " Jason Gunthorpe
@ 2022-05-02 17:31   ` Jason Gunthorpe
  -1 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Eric Farman, Christoph Hellwig, intel-gfx,
	intel-gvt-dev, Jason J. Herne, Tian, Kevin, kvm, Liu, Yi L

Every caller has a readily available vfio_device pointer, use that instead
of passing in a generic struct device. Change vfio_dma_rw() to take in the
struct vfio_device and move the container users that would have been held
by vfio_group_get_external_user_from_dev() to vfio_dma_rw() directly, like
vfio_pin/unpin_pages().

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/gpu/drm/i915/gvt/gvt.h |  4 ++--
 drivers/vfio/vfio.c            | 24 +++++++++++-------------
 include/linux/vfio.h           |  2 +-
 3 files changed, 14 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 03ecffc2ba56a9..5a28ee965b7f3e 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -732,7 +732,7 @@ static inline int intel_gvt_read_gpa(struct intel_vgpu *vgpu, unsigned long gpa,
 {
 	if (!vgpu->attached)
 		return -ESRCH;
-	return vfio_dma_rw(vgpu->vfio_group, gpa, buf, len, false);
+	return vfio_dma_rw(&vgpu->vfio_device, gpa, buf, len, false);
 }
 
 /**
@@ -750,7 +750,7 @@ static inline int intel_gvt_write_gpa(struct intel_vgpu *vgpu,
 {
 	if (!vgpu->attached)
 		return -ESRCH;
-	return vfio_dma_rw(vgpu->vfio_group, gpa, buf, len, true);
+	return vfio_dma_rw(&vgpu->vfio_device, gpa, buf, len, true);
 }
 
 void intel_gvt_debugfs_remove_vgpu(struct intel_vgpu *vgpu);
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index dc5d40b07e2381..7960a153879ba5 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -2108,32 +2108,28 @@ EXPORT_SYMBOL(vfio_group_unpin_pages);
  * As the read/write of user space memory is conducted via the CPUs and is
  * not a real device DMA, it is not necessary to pin the user space memory.
  *
- * The caller needs to call vfio_group_get_external_user() or
- * vfio_group_get_external_user_from_dev() prior to calling this interface,
- * so as to prevent the VFIO group from disposal in the middle of the call.
- * But it can keep the reference to the VFIO group for several calls into
- * this interface.
- * After finishing using of the VFIO group, the caller needs to release the
- * VFIO group by calling vfio_group_put_external_user().
- *
- * @group [in]		: VFIO group
+ * @vdev [in]		: VFIO device
  * @user_iova [in]	: base IOVA of a user space buffer
  * @data [in]		: pointer to kernel buffer
  * @len [in]		: kernel buffer length
  * @write		: indicate read or write
  * Return error code on failure or 0 on success.
  */
-int vfio_dma_rw(struct vfio_group *group, dma_addr_t user_iova,
-		void *data, size_t len, bool write)
+int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova, void *data,
+		size_t len, bool write)
 {
 	struct vfio_container *container;
 	struct vfio_iommu_driver *driver;
 	int ret = 0;
 
-	if (!group || !data || len <= 0)
+	if (!data || len <= 0)
 		return -EINVAL;
 
-	container = group->container;
+	ret = vfio_group_add_container_user(vdev->group);
+	if (ret)
+		return ret;
+
+	container = vdev->group->container;
 	driver = container->iommu_driver;
 
 	if (likely(driver && driver->ops->dma_rw))
@@ -2142,6 +2138,8 @@ int vfio_dma_rw(struct vfio_group *group, dma_addr_t user_iova,
 	else
 		ret = -ENOTTY;
 
+	vfio_group_try_dissolve_container(vdev->group);
+
 	return ret;
 }
 EXPORT_SYMBOL(vfio_dma_rw);
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 8f2a09801a660b..91d46e532ca104 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -161,7 +161,7 @@ extern int vfio_group_pin_pages(struct vfio_group *group,
 extern int vfio_group_unpin_pages(struct vfio_group *group,
 				  unsigned long *user_iova_pfn, int npage);
 
-extern int vfio_dma_rw(struct vfio_group *group, dma_addr_t user_iova,
+extern int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova,
 		       void *data, size_t len, bool write);
 
 extern struct iommu_domain *vfio_group_iommu_domain(struct vfio_group *group);
-- 
2.36.0


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [Intel-gfx] [PATCH v3 4/7] vfio/mdev: Pass in a struct vfio_device * to vfio_dma_rw()
@ 2022-05-02 17:31   ` Jason Gunthorpe
  0 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Jason J. Herne, Eric Farman, Liu, Yi L, kvm,
	intel-gfx, intel-gvt-dev, Christoph Hellwig

Every caller has a readily available vfio_device pointer, use that instead
of passing in a generic struct device. Change vfio_dma_rw() to take in the
struct vfio_device and move the container users that would have been held
by vfio_group_get_external_user_from_dev() to vfio_dma_rw() directly, like
vfio_pin/unpin_pages().

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/gpu/drm/i915/gvt/gvt.h |  4 ++--
 drivers/vfio/vfio.c            | 24 +++++++++++-------------
 include/linux/vfio.h           |  2 +-
 3 files changed, 14 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 03ecffc2ba56a9..5a28ee965b7f3e 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -732,7 +732,7 @@ static inline int intel_gvt_read_gpa(struct intel_vgpu *vgpu, unsigned long gpa,
 {
 	if (!vgpu->attached)
 		return -ESRCH;
-	return vfio_dma_rw(vgpu->vfio_group, gpa, buf, len, false);
+	return vfio_dma_rw(&vgpu->vfio_device, gpa, buf, len, false);
 }
 
 /**
@@ -750,7 +750,7 @@ static inline int intel_gvt_write_gpa(struct intel_vgpu *vgpu,
 {
 	if (!vgpu->attached)
 		return -ESRCH;
-	return vfio_dma_rw(vgpu->vfio_group, gpa, buf, len, true);
+	return vfio_dma_rw(&vgpu->vfio_device, gpa, buf, len, true);
 }
 
 void intel_gvt_debugfs_remove_vgpu(struct intel_vgpu *vgpu);
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index dc5d40b07e2381..7960a153879ba5 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -2108,32 +2108,28 @@ EXPORT_SYMBOL(vfio_group_unpin_pages);
  * As the read/write of user space memory is conducted via the CPUs and is
  * not a real device DMA, it is not necessary to pin the user space memory.
  *
- * The caller needs to call vfio_group_get_external_user() or
- * vfio_group_get_external_user_from_dev() prior to calling this interface,
- * so as to prevent the VFIO group from disposal in the middle of the call.
- * But it can keep the reference to the VFIO group for several calls into
- * this interface.
- * After finishing using of the VFIO group, the caller needs to release the
- * VFIO group by calling vfio_group_put_external_user().
- *
- * @group [in]		: VFIO group
+ * @vdev [in]		: VFIO device
  * @user_iova [in]	: base IOVA of a user space buffer
  * @data [in]		: pointer to kernel buffer
  * @len [in]		: kernel buffer length
  * @write		: indicate read or write
  * Return error code on failure or 0 on success.
  */
-int vfio_dma_rw(struct vfio_group *group, dma_addr_t user_iova,
-		void *data, size_t len, bool write)
+int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova, void *data,
+		size_t len, bool write)
 {
 	struct vfio_container *container;
 	struct vfio_iommu_driver *driver;
 	int ret = 0;
 
-	if (!group || !data || len <= 0)
+	if (!data || len <= 0)
 		return -EINVAL;
 
-	container = group->container;
+	ret = vfio_group_add_container_user(vdev->group);
+	if (ret)
+		return ret;
+
+	container = vdev->group->container;
 	driver = container->iommu_driver;
 
 	if (likely(driver && driver->ops->dma_rw))
@@ -2142,6 +2138,8 @@ int vfio_dma_rw(struct vfio_group *group, dma_addr_t user_iova,
 	else
 		ret = -ENOTTY;
 
+	vfio_group_try_dissolve_container(vdev->group);
+
 	return ret;
 }
 EXPORT_SYMBOL(vfio_dma_rw);
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 8f2a09801a660b..91d46e532ca104 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -161,7 +161,7 @@ extern int vfio_group_pin_pages(struct vfio_group *group,
 extern int vfio_group_unpin_pages(struct vfio_group *group,
 				  unsigned long *user_iova_pfn, int npage);
 
-extern int vfio_dma_rw(struct vfio_group *group, dma_addr_t user_iova,
+extern int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova,
 		       void *data, size_t len, bool write);
 
 extern struct iommu_domain *vfio_group_iommu_domain(struct vfio_group *group);
-- 
2.36.0


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [PATCH v3 5/7] drm/i915/gvt: Change from vfio_group_(un)pin_pages to vfio_(un)pin_pages
  2022-05-02 17:31 ` [Intel-gfx] " Jason Gunthorpe
@ 2022-05-02 17:31   ` Jason Gunthorpe
  -1 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Eric Farman, Christoph Hellwig, intel-gfx,
	intel-gvt-dev, Jason J. Herne, Tian, Kevin, kvm, Liu, Yi L

Use the existing vfio_device versions of vfio_(un)pin_pages(). There is no
reason to use a group interface here, kvmgt has easy access to a
vfio_device.

Delete kvmgt_vdev::vfio_group since these calls were the last users.

Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/gpu/drm/i915/gvt/gvt.h   |  1 -
 drivers/gpu/drm/i915/gvt/kvmgt.c | 27 ++++++---------------------
 2 files changed, 6 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 5a28ee965b7f3e..2af4c83e733c6c 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -231,7 +231,6 @@ struct intel_vgpu {
 	struct kvm *kvm;
 	struct work_struct release_work;
 	atomic_t released;
-	struct vfio_group *vfio_group;
 
 	struct kvm_page_track_notifier_node track_node;
 #define NR_BKT (1 << 18)
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 1cec4f1fdfaced..7655ffa97d5116 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -243,7 +243,7 @@ static void gvt_unpin_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
 	for (npage = 0; npage < total_pages; npage++) {
 		unsigned long cur_gfn = gfn + npage;
 
-		ret = vfio_group_unpin_pages(vgpu->vfio_group, &cur_gfn, 1);
+		ret = vfio_unpin_pages(&vgpu->vfio_device, &cur_gfn, 1);
 		drm_WARN_ON(&i915->drm, ret != 1);
 	}
 }
@@ -266,8 +266,8 @@ static int gvt_pin_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
 		unsigned long cur_gfn = gfn + npage;
 		unsigned long pfn;
 
-		ret = vfio_group_pin_pages(vgpu->vfio_group, &cur_gfn, 1,
-					   IOMMU_READ | IOMMU_WRITE, &pfn);
+		ret = vfio_pin_pages(&vgpu->vfio_device, &cur_gfn, 1,
+				     IOMMU_READ | IOMMU_WRITE, &pfn);
 		if (ret != 1) {
 			gvt_vgpu_err("vfio_pin_pages failed for gfn 0x%lx, ret %d\n",
 				     cur_gfn, ret);
@@ -804,7 +804,6 @@ static int intel_vgpu_open_device(struct vfio_device *vfio_dev)
 	struct intel_vgpu *vgpu = vfio_dev_to_vgpu(vfio_dev);
 	unsigned long events;
 	int ret;
-	struct vfio_group *vfio_group;
 
 	vgpu->iommu_notifier.notifier_call = intel_vgpu_iommu_notifier;
 	vgpu->group_notifier.notifier_call = intel_vgpu_group_notifier;
@@ -827,28 +826,19 @@ static int intel_vgpu_open_device(struct vfio_device *vfio_dev)
 		goto undo_iommu;
 	}
 
-	vfio_group =
-		vfio_group_get_external_user_from_dev(vgpu->vfio_device.dev);
-	if (IS_ERR_OR_NULL(vfio_group)) {
-		ret = !vfio_group ? -EFAULT : PTR_ERR(vfio_group);
-		gvt_vgpu_err("vfio_group_get_external_user_from_dev failed\n");
-		goto undo_register;
-	}
-	vgpu->vfio_group = vfio_group;
-
 	ret = -EEXIST;
 	if (vgpu->attached)
-		goto undo_group;
+		goto undo_register;
 
 	ret = -ESRCH;
 	if (!vgpu->kvm || vgpu->kvm->mm != current->mm) {
 		gvt_vgpu_err("KVM is required to use Intel vGPU\n");
-		goto undo_group;
+		goto undo_register;
 	}
 
 	ret = -EEXIST;
 	if (__kvmgt_vgpu_exist(vgpu))
-		goto undo_group;
+		goto undo_register;
 
 	vgpu->attached = true;
 	kvm_get_kvm(vgpu->kvm);
@@ -868,10 +858,6 @@ static int intel_vgpu_open_device(struct vfio_device *vfio_dev)
 	atomic_set(&vgpu->released, 0);
 	return 0;
 
-undo_group:
-	vfio_group_put_external_user(vgpu->vfio_group);
-	vgpu->vfio_group = NULL;
-
 undo_register:
 	vfio_unregister_notifier(vfio_dev, VFIO_GROUP_NOTIFY,
 				 &vgpu->group_notifier);
@@ -925,7 +911,6 @@ static void __intel_vgpu_release(struct intel_vgpu *vgpu)
 	gvt_cache_destroy(vgpu);
 
 	intel_vgpu_release_msi_eventfd_ctx(vgpu);
-	vfio_group_put_external_user(vgpu->vfio_group);
 
 	vgpu->kvm = NULL;
 	vgpu->attached = false;
-- 
2.36.0


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [Intel-gfx] [PATCH v3 5/7] drm/i915/gvt: Change from vfio_group_(un)pin_pages to vfio_(un)pin_pages
@ 2022-05-02 17:31   ` Jason Gunthorpe
  0 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Jason J. Herne, Eric Farman, Liu, Yi L, kvm,
	intel-gfx, intel-gvt-dev, Christoph Hellwig

Use the existing vfio_device versions of vfio_(un)pin_pages(). There is no
reason to use a group interface here, kvmgt has easy access to a
vfio_device.

Delete kvmgt_vdev::vfio_group since these calls were the last users.

Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/gpu/drm/i915/gvt/gvt.h   |  1 -
 drivers/gpu/drm/i915/gvt/kvmgt.c | 27 ++++++---------------------
 2 files changed, 6 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 5a28ee965b7f3e..2af4c83e733c6c 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -231,7 +231,6 @@ struct intel_vgpu {
 	struct kvm *kvm;
 	struct work_struct release_work;
 	atomic_t released;
-	struct vfio_group *vfio_group;
 
 	struct kvm_page_track_notifier_node track_node;
 #define NR_BKT (1 << 18)
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 1cec4f1fdfaced..7655ffa97d5116 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -243,7 +243,7 @@ static void gvt_unpin_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
 	for (npage = 0; npage < total_pages; npage++) {
 		unsigned long cur_gfn = gfn + npage;
 
-		ret = vfio_group_unpin_pages(vgpu->vfio_group, &cur_gfn, 1);
+		ret = vfio_unpin_pages(&vgpu->vfio_device, &cur_gfn, 1);
 		drm_WARN_ON(&i915->drm, ret != 1);
 	}
 }
@@ -266,8 +266,8 @@ static int gvt_pin_guest_page(struct intel_vgpu *vgpu, unsigned long gfn,
 		unsigned long cur_gfn = gfn + npage;
 		unsigned long pfn;
 
-		ret = vfio_group_pin_pages(vgpu->vfio_group, &cur_gfn, 1,
-					   IOMMU_READ | IOMMU_WRITE, &pfn);
+		ret = vfio_pin_pages(&vgpu->vfio_device, &cur_gfn, 1,
+				     IOMMU_READ | IOMMU_WRITE, &pfn);
 		if (ret != 1) {
 			gvt_vgpu_err("vfio_pin_pages failed for gfn 0x%lx, ret %d\n",
 				     cur_gfn, ret);
@@ -804,7 +804,6 @@ static int intel_vgpu_open_device(struct vfio_device *vfio_dev)
 	struct intel_vgpu *vgpu = vfio_dev_to_vgpu(vfio_dev);
 	unsigned long events;
 	int ret;
-	struct vfio_group *vfio_group;
 
 	vgpu->iommu_notifier.notifier_call = intel_vgpu_iommu_notifier;
 	vgpu->group_notifier.notifier_call = intel_vgpu_group_notifier;
@@ -827,28 +826,19 @@ static int intel_vgpu_open_device(struct vfio_device *vfio_dev)
 		goto undo_iommu;
 	}
 
-	vfio_group =
-		vfio_group_get_external_user_from_dev(vgpu->vfio_device.dev);
-	if (IS_ERR_OR_NULL(vfio_group)) {
-		ret = !vfio_group ? -EFAULT : PTR_ERR(vfio_group);
-		gvt_vgpu_err("vfio_group_get_external_user_from_dev failed\n");
-		goto undo_register;
-	}
-	vgpu->vfio_group = vfio_group;
-
 	ret = -EEXIST;
 	if (vgpu->attached)
-		goto undo_group;
+		goto undo_register;
 
 	ret = -ESRCH;
 	if (!vgpu->kvm || vgpu->kvm->mm != current->mm) {
 		gvt_vgpu_err("KVM is required to use Intel vGPU\n");
-		goto undo_group;
+		goto undo_register;
 	}
 
 	ret = -EEXIST;
 	if (__kvmgt_vgpu_exist(vgpu))
-		goto undo_group;
+		goto undo_register;
 
 	vgpu->attached = true;
 	kvm_get_kvm(vgpu->kvm);
@@ -868,10 +858,6 @@ static int intel_vgpu_open_device(struct vfio_device *vfio_dev)
 	atomic_set(&vgpu->released, 0);
 	return 0;
 
-undo_group:
-	vfio_group_put_external_user(vgpu->vfio_group);
-	vgpu->vfio_group = NULL;
-
 undo_register:
 	vfio_unregister_notifier(vfio_dev, VFIO_GROUP_NOTIFY,
 				 &vgpu->group_notifier);
@@ -925,7 +911,6 @@ static void __intel_vgpu_release(struct intel_vgpu *vgpu)
 	gvt_cache_destroy(vgpu);
 
 	intel_vgpu_release_msi_eventfd_ctx(vgpu);
-	vfio_group_put_external_user(vgpu->vfio_group);
 
 	vgpu->kvm = NULL;
 	vgpu->attached = false;
-- 
2.36.0


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [PATCH v3 6/7] vfio: Remove dead code
  2022-05-02 17:31 ` [Intel-gfx] " Jason Gunthorpe
@ 2022-05-02 17:31   ` Jason Gunthorpe
  -1 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Eric Farman, Christoph Hellwig, intel-gfx,
	intel-gvt-dev, Jason J. Herne, Tian, Kevin, kvm, Liu, Yi L

Now that callers have been updated to use the vfio_device APIs the driver
facing group interface is no longer used, delete it:

- vfio_group_get_external_user_from_dev()
- vfio_group_pin_pages()
- vfio_group_unpin_pages()
- vfio_group_iommu_domain()

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/vfio/vfio.c  | 151 -------------------------------------------
 include/linux/vfio.h |  11 ----
 2 files changed, 162 deletions(-)

diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 7960a153879ba5..0184d760ec1e44 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -1732,44 +1732,6 @@ struct vfio_group *vfio_group_get_external_user(struct file *filep)
 }
 EXPORT_SYMBOL_GPL(vfio_group_get_external_user);
 
-/*
- * External user API, exported by symbols to be linked dynamically.
- * The external user passes in a device pointer
- * to verify that:
- *	- A VFIO group is assiciated with the device;
- *	- IOMMU is set for the group.
- * If both checks passed, vfio_group_get_external_user_from_dev()
- * increments the container user counter to prevent the VFIO group
- * from disposal before external user exits and returns the pointer
- * to the VFIO group.
- *
- * When the external user finishes using the VFIO group, it calls
- * vfio_group_put_external_user() to release the VFIO group and
- * decrement the container user counter.
- *
- * @dev [in]	: device
- * Return error PTR or pointer to VFIO group.
- */
-
-struct vfio_group *vfio_group_get_external_user_from_dev(struct device *dev)
-{
-	struct vfio_group *group;
-	int ret;
-
-	group = vfio_group_get_from_dev(dev);
-	if (!group)
-		return ERR_PTR(-ENODEV);
-
-	ret = vfio_group_add_container_user(group);
-	if (ret) {
-		vfio_group_put(group);
-		return ERR_PTR(ret);
-	}
-
-	return group;
-}
-EXPORT_SYMBOL_GPL(vfio_group_get_external_user_from_dev);
-
 void vfio_group_put_external_user(struct vfio_group *group)
 {
 	vfio_group_try_dissolve_container(group);
@@ -2003,101 +1965,6 @@ int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 }
 EXPORT_SYMBOL(vfio_unpin_pages);
 
-/*
- * Pin a set of guest IOVA PFNs and return their associated host PFNs for a
- * VFIO group.
- *
- * The caller needs to call vfio_group_get_external_user() or
- * vfio_group_get_external_user_from_dev() prior to calling this interface,
- * so as to prevent the VFIO group from disposal in the middle of the call.
- * But it can keep the reference to the VFIO group for several calls into
- * this interface.
- * After finishing using of the VFIO group, the caller needs to release the
- * VFIO group by calling vfio_group_put_external_user().
- *
- * @group [in]		: VFIO group
- * @user_iova_pfn [in]	: array of user/guest IOVA PFNs to be pinned.
- * @npage [in]		: count of elements in user_iova_pfn array.
- *			  This count should not be greater
- *			  VFIO_PIN_PAGES_MAX_ENTRIES.
- * @prot [in]		: protection flags
- * @phys_pfn [out]	: array of host PFNs
- * Return error or number of pages pinned.
- */
-int vfio_group_pin_pages(struct vfio_group *group,
-			 unsigned long *user_iova_pfn, int npage,
-			 int prot, unsigned long *phys_pfn)
-{
-	struct vfio_container *container;
-	struct vfio_iommu_driver *driver;
-	int ret;
-
-	if (!group || !user_iova_pfn || !phys_pfn || !npage)
-		return -EINVAL;
-
-	if (group->dev_counter > 1)
-		return -EINVAL;
-
-	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
-		return -E2BIG;
-
-	container = group->container;
-	driver = container->iommu_driver;
-	if (likely(driver && driver->ops->pin_pages))
-		ret = driver->ops->pin_pages(container->iommu_data,
-					     group->iommu_group, user_iova_pfn,
-					     npage, prot, phys_pfn);
-	else
-		ret = -ENOTTY;
-
-	return ret;
-}
-EXPORT_SYMBOL(vfio_group_pin_pages);
-
-/*
- * Unpin a set of guest IOVA PFNs for a VFIO group.
- *
- * The caller needs to call vfio_group_get_external_user() or
- * vfio_group_get_external_user_from_dev() prior to calling this interface,
- * so as to prevent the VFIO group from disposal in the middle of the call.
- * But it can keep the reference to the VFIO group for several calls into
- * this interface.
- * After finishing using of the VFIO group, the caller needs to release the
- * VFIO group by calling vfio_group_put_external_user().
- *
- * @group [in]		: vfio group
- * @user_iova_pfn [in]	: array of user/guest IOVA PFNs to be unpinned.
- * @npage [in]		: count of elements in user_iova_pfn array.
- *			  This count should not be greater than
- *			  VFIO_PIN_PAGES_MAX_ENTRIES.
- * Return error or number of pages unpinned.
- */
-int vfio_group_unpin_pages(struct vfio_group *group,
-			   unsigned long *user_iova_pfn, int npage)
-{
-	struct vfio_container *container;
-	struct vfio_iommu_driver *driver;
-	int ret;
-
-	if (!group || !user_iova_pfn || !npage)
-		return -EINVAL;
-
-	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
-		return -E2BIG;
-
-	container = group->container;
-	driver = container->iommu_driver;
-	if (likely(driver && driver->ops->unpin_pages))
-		ret = driver->ops->unpin_pages(container->iommu_data,
-					       user_iova_pfn, npage);
-	else
-		ret = -ENOTTY;
-
-	return ret;
-}
-EXPORT_SYMBOL(vfio_group_unpin_pages);
-
-
 /*
  * This interface allows the CPUs to perform some sort of virtual DMA on
  * behalf of the device.
@@ -2300,24 +2167,6 @@ int vfio_unregister_notifier(struct vfio_device *dev,
 }
 EXPORT_SYMBOL(vfio_unregister_notifier);
 
-struct iommu_domain *vfio_group_iommu_domain(struct vfio_group *group)
-{
-	struct vfio_container *container;
-	struct vfio_iommu_driver *driver;
-
-	if (!group)
-		return ERR_PTR(-EINVAL);
-
-	container = group->container;
-	driver = container->iommu_driver;
-	if (likely(driver && driver->ops->group_iommu_domain))
-		return driver->ops->group_iommu_domain(container->iommu_data,
-						       group->iommu_group);
-
-	return ERR_PTR(-ENOTTY);
-}
-EXPORT_SYMBOL_GPL(vfio_group_iommu_domain);
-
 /*
  * Module/class support
  */
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 91d46e532ca104..9a9981c2622896 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -140,8 +140,6 @@ int vfio_mig_get_next_state(struct vfio_device *device,
  */
 extern struct vfio_group *vfio_group_get_external_user(struct file *filep);
 extern void vfio_group_put_external_user(struct vfio_group *group);
-extern struct vfio_group *vfio_group_get_external_user_from_dev(struct device
-								*dev);
 extern bool vfio_external_group_match_file(struct vfio_group *group,
 					   struct file *filep);
 extern int vfio_external_user_iommu_id(struct vfio_group *group);
@@ -154,18 +152,9 @@ extern int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 			  int npage, int prot, unsigned long *phys_pfn);
 extern int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 			    int npage);
-
-extern int vfio_group_pin_pages(struct vfio_group *group,
-				unsigned long *user_iova_pfn, int npage,
-				int prot, unsigned long *phys_pfn);
-extern int vfio_group_unpin_pages(struct vfio_group *group,
-				  unsigned long *user_iova_pfn, int npage);
-
 extern int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova,
 		       void *data, size_t len, bool write);
 
-extern struct iommu_domain *vfio_group_iommu_domain(struct vfio_group *group);
-
 /* each type has independent events */
 enum vfio_notify_type {
 	VFIO_IOMMU_NOTIFY = 0,
-- 
2.36.0


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [Intel-gfx] [PATCH v3 6/7] vfio: Remove dead code
@ 2022-05-02 17:31   ` Jason Gunthorpe
  0 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Jason J. Herne, Eric Farman, Liu, Yi L, kvm,
	intel-gfx, intel-gvt-dev, Christoph Hellwig

Now that callers have been updated to use the vfio_device APIs the driver
facing group interface is no longer used, delete it:

- vfio_group_get_external_user_from_dev()
- vfio_group_pin_pages()
- vfio_group_unpin_pages()
- vfio_group_iommu_domain()

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/vfio/vfio.c  | 151 -------------------------------------------
 include/linux/vfio.h |  11 ----
 2 files changed, 162 deletions(-)

diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 7960a153879ba5..0184d760ec1e44 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -1732,44 +1732,6 @@ struct vfio_group *vfio_group_get_external_user(struct file *filep)
 }
 EXPORT_SYMBOL_GPL(vfio_group_get_external_user);
 
-/*
- * External user API, exported by symbols to be linked dynamically.
- * The external user passes in a device pointer
- * to verify that:
- *	- A VFIO group is assiciated with the device;
- *	- IOMMU is set for the group.
- * If both checks passed, vfio_group_get_external_user_from_dev()
- * increments the container user counter to prevent the VFIO group
- * from disposal before external user exits and returns the pointer
- * to the VFIO group.
- *
- * When the external user finishes using the VFIO group, it calls
- * vfio_group_put_external_user() to release the VFIO group and
- * decrement the container user counter.
- *
- * @dev [in]	: device
- * Return error PTR or pointer to VFIO group.
- */
-
-struct vfio_group *vfio_group_get_external_user_from_dev(struct device *dev)
-{
-	struct vfio_group *group;
-	int ret;
-
-	group = vfio_group_get_from_dev(dev);
-	if (!group)
-		return ERR_PTR(-ENODEV);
-
-	ret = vfio_group_add_container_user(group);
-	if (ret) {
-		vfio_group_put(group);
-		return ERR_PTR(ret);
-	}
-
-	return group;
-}
-EXPORT_SYMBOL_GPL(vfio_group_get_external_user_from_dev);
-
 void vfio_group_put_external_user(struct vfio_group *group)
 {
 	vfio_group_try_dissolve_container(group);
@@ -2003,101 +1965,6 @@ int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 }
 EXPORT_SYMBOL(vfio_unpin_pages);
 
-/*
- * Pin a set of guest IOVA PFNs and return their associated host PFNs for a
- * VFIO group.
- *
- * The caller needs to call vfio_group_get_external_user() or
- * vfio_group_get_external_user_from_dev() prior to calling this interface,
- * so as to prevent the VFIO group from disposal in the middle of the call.
- * But it can keep the reference to the VFIO group for several calls into
- * this interface.
- * After finishing using of the VFIO group, the caller needs to release the
- * VFIO group by calling vfio_group_put_external_user().
- *
- * @group [in]		: VFIO group
- * @user_iova_pfn [in]	: array of user/guest IOVA PFNs to be pinned.
- * @npage [in]		: count of elements in user_iova_pfn array.
- *			  This count should not be greater
- *			  VFIO_PIN_PAGES_MAX_ENTRIES.
- * @prot [in]		: protection flags
- * @phys_pfn [out]	: array of host PFNs
- * Return error or number of pages pinned.
- */
-int vfio_group_pin_pages(struct vfio_group *group,
-			 unsigned long *user_iova_pfn, int npage,
-			 int prot, unsigned long *phys_pfn)
-{
-	struct vfio_container *container;
-	struct vfio_iommu_driver *driver;
-	int ret;
-
-	if (!group || !user_iova_pfn || !phys_pfn || !npage)
-		return -EINVAL;
-
-	if (group->dev_counter > 1)
-		return -EINVAL;
-
-	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
-		return -E2BIG;
-
-	container = group->container;
-	driver = container->iommu_driver;
-	if (likely(driver && driver->ops->pin_pages))
-		ret = driver->ops->pin_pages(container->iommu_data,
-					     group->iommu_group, user_iova_pfn,
-					     npage, prot, phys_pfn);
-	else
-		ret = -ENOTTY;
-
-	return ret;
-}
-EXPORT_SYMBOL(vfio_group_pin_pages);
-
-/*
- * Unpin a set of guest IOVA PFNs for a VFIO group.
- *
- * The caller needs to call vfio_group_get_external_user() or
- * vfio_group_get_external_user_from_dev() prior to calling this interface,
- * so as to prevent the VFIO group from disposal in the middle of the call.
- * But it can keep the reference to the VFIO group for several calls into
- * this interface.
- * After finishing using of the VFIO group, the caller needs to release the
- * VFIO group by calling vfio_group_put_external_user().
- *
- * @group [in]		: vfio group
- * @user_iova_pfn [in]	: array of user/guest IOVA PFNs to be unpinned.
- * @npage [in]		: count of elements in user_iova_pfn array.
- *			  This count should not be greater than
- *			  VFIO_PIN_PAGES_MAX_ENTRIES.
- * Return error or number of pages unpinned.
- */
-int vfio_group_unpin_pages(struct vfio_group *group,
-			   unsigned long *user_iova_pfn, int npage)
-{
-	struct vfio_container *container;
-	struct vfio_iommu_driver *driver;
-	int ret;
-
-	if (!group || !user_iova_pfn || !npage)
-		return -EINVAL;
-
-	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
-		return -E2BIG;
-
-	container = group->container;
-	driver = container->iommu_driver;
-	if (likely(driver && driver->ops->unpin_pages))
-		ret = driver->ops->unpin_pages(container->iommu_data,
-					       user_iova_pfn, npage);
-	else
-		ret = -ENOTTY;
-
-	return ret;
-}
-EXPORT_SYMBOL(vfio_group_unpin_pages);
-
-
 /*
  * This interface allows the CPUs to perform some sort of virtual DMA on
  * behalf of the device.
@@ -2300,24 +2167,6 @@ int vfio_unregister_notifier(struct vfio_device *dev,
 }
 EXPORT_SYMBOL(vfio_unregister_notifier);
 
-struct iommu_domain *vfio_group_iommu_domain(struct vfio_group *group)
-{
-	struct vfio_container *container;
-	struct vfio_iommu_driver *driver;
-
-	if (!group)
-		return ERR_PTR(-EINVAL);
-
-	container = group->container;
-	driver = container->iommu_driver;
-	if (likely(driver && driver->ops->group_iommu_domain))
-		return driver->ops->group_iommu_domain(container->iommu_data,
-						       group->iommu_group);
-
-	return ERR_PTR(-ENOTTY);
-}
-EXPORT_SYMBOL_GPL(vfio_group_iommu_domain);
-
 /*
  * Module/class support
  */
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 91d46e532ca104..9a9981c2622896 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -140,8 +140,6 @@ int vfio_mig_get_next_state(struct vfio_device *device,
  */
 extern struct vfio_group *vfio_group_get_external_user(struct file *filep);
 extern void vfio_group_put_external_user(struct vfio_group *group);
-extern struct vfio_group *vfio_group_get_external_user_from_dev(struct device
-								*dev);
 extern bool vfio_external_group_match_file(struct vfio_group *group,
 					   struct file *filep);
 extern int vfio_external_user_iommu_id(struct vfio_group *group);
@@ -154,18 +152,9 @@ extern int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 			  int npage, int prot, unsigned long *phys_pfn);
 extern int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 			    int npage);
-
-extern int vfio_group_pin_pages(struct vfio_group *group,
-				unsigned long *user_iova_pfn, int npage,
-				int prot, unsigned long *phys_pfn);
-extern int vfio_group_unpin_pages(struct vfio_group *group,
-				  unsigned long *user_iova_pfn, int npage);
-
 extern int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova,
 		       void *data, size_t len, bool write);
 
-extern struct iommu_domain *vfio_group_iommu_domain(struct vfio_group *group);
-
 /* each type has independent events */
 enum vfio_notify_type {
 	VFIO_IOMMU_NOTIFY = 0,
-- 
2.36.0


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [PATCH v3 7/7] vfio: Remove calls to vfio_group_add_container_user()
  2022-05-02 17:31 ` [Intel-gfx] " Jason Gunthorpe
@ 2022-05-02 17:31   ` Jason Gunthorpe
  -1 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Eric Farman, Christoph Hellwig, intel-gfx,
	intel-gvt-dev, Jason J. Herne, Tian, Kevin, kvm, Liu, Yi L

When the open_device() op is called the container_users is incremented and
held incremented until close_device(). Thus, so long as drivers call
functions within their open_device()/close_device() region they do not
need to worry about the container_users.

These functions can all only be called between open_device() and
close_device():

  vfio_pin_pages()
  vfio_unpin_pages()
  vfio_dma_rw()
  vfio_register_notifier()
  vfio_unregister_notifier()

Eliminate the calls to vfio_group_add_container_user() and add
vfio_assert_device_open() to detect driver mis-use. This causes the
close_device() op to check device->open_count so always leave it elevated
while calling the op.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/vfio/vfio.c | 78 +++++++++------------------------------------
 1 file changed, 15 insertions(+), 63 deletions(-)

diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 0184d760ec1e44..f7d1898129ad1c 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -1115,6 +1115,12 @@ static int vfio_group_add_container_user(struct vfio_group *group)
 
 static const struct file_operations vfio_device_fops;
 
+/* true if the vfio_device has open_device() called but not close_device() */
+static bool vfio_assert_device_open(struct vfio_device *device)
+{
+	return !WARN_ON_ONCE(!READ_ONCE(device->open_count));
+}
+
 static int vfio_group_get_device_fd(struct vfio_group *group, char *buf)
 {
 	struct vfio_device *device;
@@ -1329,8 +1335,10 @@ static int vfio_device_fops_release(struct inode *inode, struct file *filep)
 	struct vfio_device *device = filep->private_data;
 
 	mutex_lock(&device->dev_set->lock);
-	if (!--device->open_count && device->ops->close_device)
+	vfio_assert_device_open(device);
+	if (device->open_count == 1 && device->ops->close_device)
 		device->ops->close_device(device);
+	device->open_count--;
 	mutex_unlock(&device->dev_set->lock);
 
 	module_put(device->dev->driver->owner);
@@ -1897,7 +1905,7 @@ int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn, int npage,
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	if (!user_pfn || !phys_pfn || !npage)
+	if (!user_pfn || !phys_pfn || !npage || !vfio_assert_device_open(vdev))
 		return -EINVAL;
 
 	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
@@ -1906,10 +1914,6 @@ int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn, int npage,
 	if (group->dev_counter > 1)
 		return -EINVAL;
 
-	ret = vfio_group_add_container_user(group);
-	if (ret)
-		return ret;
-
 	container = group->container;
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->pin_pages))
@@ -1919,8 +1923,6 @@ int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn, int npage,
 	else
 		ret = -ENOTTY;
 
-	vfio_group_try_dissolve_container(group);
-
 	return ret;
 }
 EXPORT_SYMBOL(vfio_pin_pages);
@@ -1941,16 +1943,12 @@ int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	if (!user_pfn || !npage)
+	if (!user_pfn || !npage || !vfio_assert_device_open(vdev))
 		return -EINVAL;
 
 	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
 		return -E2BIG;
 
-	ret = vfio_group_add_container_user(vdev->group);
-	if (ret)
-		return ret;
-
 	container = vdev->group->container;
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->unpin_pages))
@@ -1959,8 +1957,6 @@ int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 	else
 		ret = -ENOTTY;
 
-	vfio_group_try_dissolve_container(vdev->group);
-
 	return ret;
 }
 EXPORT_SYMBOL(vfio_unpin_pages);
@@ -1989,13 +1985,9 @@ int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova, void *data,
 	struct vfio_iommu_driver *driver;
 	int ret = 0;
 
-	if (!data || len <= 0)
+	if (!data || len <= 0 || !vfio_assert_device_open(vdev))
 		return -EINVAL;
 
-	ret = vfio_group_add_container_user(vdev->group);
-	if (ret)
-		return ret;
-
 	container = vdev->group->container;
 	driver = container->iommu_driver;
 
@@ -2004,9 +1996,6 @@ int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova, void *data,
 					  user_iova, data, len, write);
 	else
 		ret = -ENOTTY;
-
-	vfio_group_try_dissolve_container(vdev->group);
-
 	return ret;
 }
 EXPORT_SYMBOL(vfio_dma_rw);
@@ -2019,10 +2008,6 @@ static int vfio_register_iommu_notifier(struct vfio_group *group,
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	ret = vfio_group_add_container_user(group);
-	if (ret)
-		return -EINVAL;
-
 	container = group->container;
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->register_notifier))
@@ -2030,9 +2015,6 @@ static int vfio_register_iommu_notifier(struct vfio_group *group,
 						     events, nb);
 	else
 		ret = -ENOTTY;
-
-	vfio_group_try_dissolve_container(group);
-
 	return ret;
 }
 
@@ -2043,10 +2025,6 @@ static int vfio_unregister_iommu_notifier(struct vfio_group *group,
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	ret = vfio_group_add_container_user(group);
-	if (ret)
-		return -EINVAL;
-
 	container = group->container;
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->unregister_notifier))
@@ -2054,9 +2032,6 @@ static int vfio_unregister_iommu_notifier(struct vfio_group *group,
 						       nb);
 	else
 		ret = -ENOTTY;
-
-	vfio_group_try_dissolve_container(group);
-
 	return ret;
 }
 
@@ -2085,10 +2060,6 @@ static int vfio_register_group_notifier(struct vfio_group *group,
 	if (*events)
 		return -EINVAL;
 
-	ret = vfio_group_add_container_user(group);
-	if (ret)
-		return -EINVAL;
-
 	ret = blocking_notifier_chain_register(&group->notifier, nb);
 
 	/*
@@ -2098,25 +2069,6 @@ static int vfio_register_group_notifier(struct vfio_group *group,
 	if (!ret && set_kvm && group->kvm)
 		blocking_notifier_call_chain(&group->notifier,
 					VFIO_GROUP_NOTIFY_SET_KVM, group->kvm);
-
-	vfio_group_try_dissolve_container(group);
-
-	return ret;
-}
-
-static int vfio_unregister_group_notifier(struct vfio_group *group,
-					 struct notifier_block *nb)
-{
-	int ret;
-
-	ret = vfio_group_add_container_user(group);
-	if (ret)
-		return -EINVAL;
-
-	ret = blocking_notifier_chain_unregister(&group->notifier, nb);
-
-	vfio_group_try_dissolve_container(group);
-
 	return ret;
 }
 
@@ -2126,7 +2078,7 @@ int vfio_register_notifier(struct vfio_device *dev, enum vfio_notify_type type,
 	struct vfio_group *group = dev->group;
 	int ret;
 
-	if (!nb || !events || (*events == 0))
+	if (!nb || !events || (*events == 0) || !vfio_assert_device_open(dev))
 		return -EINVAL;
 
 	switch (type) {
@@ -2150,7 +2102,7 @@ int vfio_unregister_notifier(struct vfio_device *dev,
 	struct vfio_group *group = dev->group;
 	int ret;
 
-	if (!nb)
+	if (!nb || !vfio_assert_device_open(dev))
 		return -EINVAL;
 
 	switch (type) {
@@ -2158,7 +2110,7 @@ int vfio_unregister_notifier(struct vfio_device *dev,
 		ret = vfio_unregister_iommu_notifier(group, nb);
 		break;
 	case VFIO_GROUP_NOTIFY:
-		ret = vfio_unregister_group_notifier(group, nb);
+		ret = blocking_notifier_chain_unregister(&group->notifier, nb);
 		break;
 	default:
 		ret = -EINVAL;
-- 
2.36.0


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [Intel-gfx] [PATCH v3 7/7] vfio: Remove calls to vfio_group_add_container_user()
@ 2022-05-02 17:31   ` Jason Gunthorpe
  0 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-02 17:31 UTC (permalink / raw)
  Cc: Tony Krowiak, Jason J. Herne, Eric Farman, Liu, Yi L, kvm,
	intel-gfx, intel-gvt-dev, Christoph Hellwig

When the open_device() op is called the container_users is incremented and
held incremented until close_device(). Thus, so long as drivers call
functions within their open_device()/close_device() region they do not
need to worry about the container_users.

These functions can all only be called between open_device() and
close_device():

  vfio_pin_pages()
  vfio_unpin_pages()
  vfio_dma_rw()
  vfio_register_notifier()
  vfio_unregister_notifier()

Eliminate the calls to vfio_group_add_container_user() and add
vfio_assert_device_open() to detect driver mis-use. This causes the
close_device() op to check device->open_count so always leave it elevated
while calling the op.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/vfio/vfio.c | 78 +++++++++------------------------------------
 1 file changed, 15 insertions(+), 63 deletions(-)

diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 0184d760ec1e44..f7d1898129ad1c 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -1115,6 +1115,12 @@ static int vfio_group_add_container_user(struct vfio_group *group)
 
 static const struct file_operations vfio_device_fops;
 
+/* true if the vfio_device has open_device() called but not close_device() */
+static bool vfio_assert_device_open(struct vfio_device *device)
+{
+	return !WARN_ON_ONCE(!READ_ONCE(device->open_count));
+}
+
 static int vfio_group_get_device_fd(struct vfio_group *group, char *buf)
 {
 	struct vfio_device *device;
@@ -1329,8 +1335,10 @@ static int vfio_device_fops_release(struct inode *inode, struct file *filep)
 	struct vfio_device *device = filep->private_data;
 
 	mutex_lock(&device->dev_set->lock);
-	if (!--device->open_count && device->ops->close_device)
+	vfio_assert_device_open(device);
+	if (device->open_count == 1 && device->ops->close_device)
 		device->ops->close_device(device);
+	device->open_count--;
 	mutex_unlock(&device->dev_set->lock);
 
 	module_put(device->dev->driver->owner);
@@ -1897,7 +1905,7 @@ int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn, int npage,
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	if (!user_pfn || !phys_pfn || !npage)
+	if (!user_pfn || !phys_pfn || !npage || !vfio_assert_device_open(vdev))
 		return -EINVAL;
 
 	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
@@ -1906,10 +1914,6 @@ int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn, int npage,
 	if (group->dev_counter > 1)
 		return -EINVAL;
 
-	ret = vfio_group_add_container_user(group);
-	if (ret)
-		return ret;
-
 	container = group->container;
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->pin_pages))
@@ -1919,8 +1923,6 @@ int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn, int npage,
 	else
 		ret = -ENOTTY;
 
-	vfio_group_try_dissolve_container(group);
-
 	return ret;
 }
 EXPORT_SYMBOL(vfio_pin_pages);
@@ -1941,16 +1943,12 @@ int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	if (!user_pfn || !npage)
+	if (!user_pfn || !npage || !vfio_assert_device_open(vdev))
 		return -EINVAL;
 
 	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
 		return -E2BIG;
 
-	ret = vfio_group_add_container_user(vdev->group);
-	if (ret)
-		return ret;
-
 	container = vdev->group->container;
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->unpin_pages))
@@ -1959,8 +1957,6 @@ int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
 	else
 		ret = -ENOTTY;
 
-	vfio_group_try_dissolve_container(vdev->group);
-
 	return ret;
 }
 EXPORT_SYMBOL(vfio_unpin_pages);
@@ -1989,13 +1985,9 @@ int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova, void *data,
 	struct vfio_iommu_driver *driver;
 	int ret = 0;
 
-	if (!data || len <= 0)
+	if (!data || len <= 0 || !vfio_assert_device_open(vdev))
 		return -EINVAL;
 
-	ret = vfio_group_add_container_user(vdev->group);
-	if (ret)
-		return ret;
-
 	container = vdev->group->container;
 	driver = container->iommu_driver;
 
@@ -2004,9 +1996,6 @@ int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova, void *data,
 					  user_iova, data, len, write);
 	else
 		ret = -ENOTTY;
-
-	vfio_group_try_dissolve_container(vdev->group);
-
 	return ret;
 }
 EXPORT_SYMBOL(vfio_dma_rw);
@@ -2019,10 +2008,6 @@ static int vfio_register_iommu_notifier(struct vfio_group *group,
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	ret = vfio_group_add_container_user(group);
-	if (ret)
-		return -EINVAL;
-
 	container = group->container;
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->register_notifier))
@@ -2030,9 +2015,6 @@ static int vfio_register_iommu_notifier(struct vfio_group *group,
 						     events, nb);
 	else
 		ret = -ENOTTY;
-
-	vfio_group_try_dissolve_container(group);
-
 	return ret;
 }
 
@@ -2043,10 +2025,6 @@ static int vfio_unregister_iommu_notifier(struct vfio_group *group,
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	ret = vfio_group_add_container_user(group);
-	if (ret)
-		return -EINVAL;
-
 	container = group->container;
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->unregister_notifier))
@@ -2054,9 +2032,6 @@ static int vfio_unregister_iommu_notifier(struct vfio_group *group,
 						       nb);
 	else
 		ret = -ENOTTY;
-
-	vfio_group_try_dissolve_container(group);
-
 	return ret;
 }
 
@@ -2085,10 +2060,6 @@ static int vfio_register_group_notifier(struct vfio_group *group,
 	if (*events)
 		return -EINVAL;
 
-	ret = vfio_group_add_container_user(group);
-	if (ret)
-		return -EINVAL;
-
 	ret = blocking_notifier_chain_register(&group->notifier, nb);
 
 	/*
@@ -2098,25 +2069,6 @@ static int vfio_register_group_notifier(struct vfio_group *group,
 	if (!ret && set_kvm && group->kvm)
 		blocking_notifier_call_chain(&group->notifier,
 					VFIO_GROUP_NOTIFY_SET_KVM, group->kvm);
-
-	vfio_group_try_dissolve_container(group);
-
-	return ret;
-}
-
-static int vfio_unregister_group_notifier(struct vfio_group *group,
-					 struct notifier_block *nb)
-{
-	int ret;
-
-	ret = vfio_group_add_container_user(group);
-	if (ret)
-		return -EINVAL;
-
-	ret = blocking_notifier_chain_unregister(&group->notifier, nb);
-
-	vfio_group_try_dissolve_container(group);
-
 	return ret;
 }
 
@@ -2126,7 +2078,7 @@ int vfio_register_notifier(struct vfio_device *dev, enum vfio_notify_type type,
 	struct vfio_group *group = dev->group;
 	int ret;
 
-	if (!nb || !events || (*events == 0))
+	if (!nb || !events || (*events == 0) || !vfio_assert_device_open(dev))
 		return -EINVAL;
 
 	switch (type) {
@@ -2150,7 +2102,7 @@ int vfio_unregister_notifier(struct vfio_device *dev,
 	struct vfio_group *group = dev->group;
 	int ret;
 
-	if (!nb)
+	if (!nb || !vfio_assert_device_open(dev))
 		return -EINVAL;
 
 	switch (type) {
@@ -2158,7 +2110,7 @@ int vfio_unregister_notifier(struct vfio_device *dev,
 		ret = vfio_unregister_iommu_notifier(group, nb);
 		break;
 	case VFIO_GROUP_NOTIFY:
-		ret = vfio_unregister_group_notifier(group, nb);
+		ret = blocking_notifier_chain_unregister(&group->notifier, nb);
 		break;
 	default:
 		ret = -EINVAL;
-- 
2.36.0


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Make the rest of the VFIO driver interface use vfio_device (rev4)
  2022-05-02 17:31 ` [Intel-gfx] " Jason Gunthorpe
                   ` (7 preceding siblings ...)
  (?)
@ 2022-05-02 18:01 ` Patchwork
  -1 siblings, 0 replies; 26+ messages in thread
From: Patchwork @ 2022-05-02 18:01 UTC (permalink / raw)
  To: Jason Gunthorpe; +Cc: intel-gfx

== Series Details ==

Series: Make the rest of the VFIO driver interface use vfio_device (rev4)
URL   : https://patchwork.freedesktop.org/series/102606/
State : warning

== Summary ==

Error: dim checkpatch failed
ec715bc61dd4 vfio: Make vfio_(un)register_notifier accept a vfio_device
-:227: CHECK:AVOID_EXTERNS: extern prototypes should be avoided in .h files
#227: FILE: include/linux/vfio.h:181:
+extern int vfio_register_notifier(struct vfio_device *dev,

-:232: CHECK:AVOID_EXTERNS: extern prototypes should be avoided in .h files
#232: FILE: include/linux/vfio.h:185:
+extern int vfio_unregister_notifier(struct vfio_device *dev,

-:235: WARNING:FROM_SIGN_OFF_MISMATCH: From:/Signed-off-by: email address mismatch: 'From: Jason Gunthorpe <jgg@ziepe.ca>' != 'Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>'

total: 0 errors, 1 warnings, 2 checks, 187 lines checked
9cfaa7606a96 vfio/ccw: Remove mdev from struct channel_program
-:167: CHECK:OPEN_ENDED_LINE: Lines should not end with a '('
#167: FILE: drivers/s390/cio/vfio_ccw_cp.c:659:
+		dev_warn(

-:210: CHECK:AVOID_EXTERNS: extern prototypes should be avoided in .h files
#210: FILE: drivers/s390/cio/vfio_ccw_cp.h:44:
+extern int cp_init(struct channel_program *cp, union orb *orb);

-:227: WARNING:FROM_SIGN_OFF_MISMATCH: From:/Signed-off-by: email address mismatch: 'From: Jason Gunthorpe <jgg@ziepe.ca>' != 'Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>'

total: 0 errors, 1 warnings, 2 checks, 186 lines checked
27e583abb3bf vfio/mdev: Pass in a struct vfio_device * to vfio_pin/unpin_pages()
-:214: CHECK:AVOID_EXTERNS: extern prototypes should be avoided in .h files
#214: FILE: include/linux/vfio.h:153:
+extern int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn,

-:217: CHECK:AVOID_EXTERNS: extern prototypes should be avoided in .h files
#217: FILE: include/linux/vfio.h:155:
+extern int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,

-:220: WARNING:FROM_SIGN_OFF_MISMATCH: From:/Signed-off-by: email address mismatch: 'From: Jason Gunthorpe <jgg@ziepe.ca>' != 'Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>'

total: 0 errors, 1 warnings, 2 checks, 170 lines checked
efd6d6610a35 vfio/mdev: Pass in a struct vfio_device * to vfio_dma_rw()
-:102: CHECK:AVOID_EXTERNS: extern prototypes should be avoided in .h files
#102: FILE: include/linux/vfio.h:164:
+extern int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova,

-:105: WARNING:FROM_SIGN_OFF_MISMATCH: From:/Signed-off-by: email address mismatch: 'From: Jason Gunthorpe <jgg@ziepe.ca>' != 'Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>'

total: 0 errors, 1 warnings, 1 checks, 73 lines checked
7e63fc25c93d drm/i915/gvt: Change from vfio_group_(un)pin_pages to vfio_(un)pin_pages
-:111: WARNING:FROM_SIGN_OFF_MISMATCH: From:/Signed-off-by: email address mismatch: 'From: Jason Gunthorpe <jgg@ziepe.ca>' != 'Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>'

total: 0 errors, 1 warnings, 0 checks, 80 lines checked
064082b3990b vfio: Remove dead code
-:225: WARNING:FROM_SIGN_OFF_MISMATCH: From:/Signed-off-by: email address mismatch: 'From: Jason Gunthorpe <jgg@ziepe.ca>' != 'Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>'

total: 0 errors, 1 warnings, 0 checks, 195 lines checked
10da62464092 vfio: Remove calls to vfio_group_add_container_user()
-:244: WARNING:FROM_SIGN_OFF_MISMATCH: From:/Signed-off-by: email address mismatch: 'From: Jason Gunthorpe <jgg@ziepe.ca>' != 'Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>'

total: 0 errors, 1 warnings, 0 checks, 194 lines checked



^ permalink raw reply	[flat|nested] 26+ messages in thread

* [Intel-gfx] ✗ Fi.CI.SPARSE: warning for Make the rest of the VFIO driver interface use vfio_device (rev4)
  2022-05-02 17:31 ` [Intel-gfx] " Jason Gunthorpe
                   ` (8 preceding siblings ...)
  (?)
@ 2022-05-02 18:01 ` Patchwork
  -1 siblings, 0 replies; 26+ messages in thread
From: Patchwork @ 2022-05-02 18:01 UTC (permalink / raw)
  To: Jason Gunthorpe; +Cc: intel-gfx

== Series Details ==

Series: Make the rest of the VFIO driver interface use vfio_device (rev4)
URL   : https://patchwork.freedesktop.org/series/102606/
State : warning

== Summary ==

Error: dim sparse failed
Sparse version: v0.6.2
Fast mode used, each commit won't be checked separately.
-
+./include/linux/find.h:40:31: warning: shift count is negative (-24)
+./include/linux/find.h:40:31: warning: shift count is negative (-24)
+./include/linux/find.h:40:31: warning: shift count is negative (-24)
+./include/linux/find.h:40:31: warning: shift count is negative (-24)
+./include/linux/find.h:40:31: warning: shift count is negative (-448)
+./include/linux/find.h:40:31: warning: shift count is negative (-448)



^ permalink raw reply	[flat|nested] 26+ messages in thread

* [Intel-gfx] ✓ Fi.CI.BAT: success for Make the rest of the VFIO driver interface use vfio_device (rev4)
  2022-05-02 17:31 ` [Intel-gfx] " Jason Gunthorpe
                   ` (9 preceding siblings ...)
  (?)
@ 2022-05-02 18:25 ` Patchwork
  -1 siblings, 0 replies; 26+ messages in thread
From: Patchwork @ 2022-05-02 18:25 UTC (permalink / raw)
  To: Jason Gunthorpe; +Cc: intel-gfx

[-- Attachment #1: Type: text/plain, Size: 10499 bytes --]

== Series Details ==

Series: Make the rest of the VFIO driver interface use vfio_device (rev4)
URL   : https://patchwork.freedesktop.org/series/102606/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_11588 -> Patchwork_102606v4
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/index.html

Participating hosts (44 -> 42)
------------------------------

  Additional (2): bat-dg2-8 bat-dg1-5 
  Missing    (4): fi-bsw-cyan bat-rpls-1 fi-hsw-4770 fi-pnv-d510 

Possible new issues
-------------------

  Here are the unknown changes that may have been introduced in Patchwork_102606v4:

### IGT changes ###

#### Suppressed ####

  The following results come from untrusted machines, tests, or statuses.
  They do not affect the overall result.

  * igt@i915_selftest@live@client:
    - {bat-dg2-8}:        NOTRUN -> [DMESG-FAIL][1]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg2-8/igt@i915_selftest@live@client.html

  * igt@i915_selftest@live@gt_mocs:
    - {bat-adlm-1}:       NOTRUN -> [INCOMPLETE][2]
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-adlm-1/igt@i915_selftest@live@gt_mocs.html

  
Known issues
------------

  Here are the changes found in Patchwork_102606v4 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@fbdev@write:
    - bat-dg1-5:          NOTRUN -> [SKIP][3] ([i915#2582]) +4 similar issues
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@fbdev@write.html

  * igt@gem_mmap@basic:
    - bat-dg1-5:          NOTRUN -> [SKIP][4] ([i915#4083])
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@gem_mmap@basic.html

  * igt@gem_tiled_fence_blits@basic:
    - bat-dg1-5:          NOTRUN -> [SKIP][5] ([i915#4077]) +2 similar issues
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@gem_tiled_fence_blits@basic.html

  * igt@gem_tiled_pread_basic:
    - bat-dg1-5:          NOTRUN -> [SKIP][6] ([i915#4079]) +1 similar issue
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@gem_tiled_pread_basic.html

  * igt@i915_pm_backlight@basic-brightness:
    - bat-dg1-5:          NOTRUN -> [SKIP][7] ([i915#1155])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@i915_pm_backlight@basic-brightness.html

  * igt@i915_selftest@live@gt_engines:
    - bat-dg1-5:          NOTRUN -> [DMESG-FAIL][8] ([i915#4418])
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@i915_selftest@live@gt_engines.html

  * igt@kms_addfb_basic@basic-y-tiled-legacy:
    - bat-dg1-5:          NOTRUN -> [SKIP][9] ([i915#4215])
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@kms_addfb_basic@basic-y-tiled-legacy.html

  * igt@kms_addfb_basic@tile-pitch-mismatch:
    - bat-dg1-5:          NOTRUN -> [SKIP][10] ([i915#4212]) +7 similar issues
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@kms_addfb_basic@tile-pitch-mismatch.html

  * igt@kms_busy@basic:
    - bat-dg1-5:          NOTRUN -> [SKIP][11] ([i915#4303])
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@kms_busy@basic.html

  * igt@kms_chamelium@hdmi-hpd-fast:
    - bat-dg1-5:          NOTRUN -> [SKIP][12] ([fdo#111827]) +7 similar issues
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@kms_chamelium@hdmi-hpd-fast.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy:
    - bat-dg1-5:          NOTRUN -> [SKIP][13] ([i915#4103] / [i915#4213]) +1 similar issue
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy.html

  * igt@kms_flip@basic-flip-vs-dpms:
    - bat-dg1-5:          NOTRUN -> [SKIP][14] ([i915#4078]) +23 similar issues
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@kms_flip@basic-flip-vs-dpms.html

  * igt@kms_force_connector_basic@force-load-detect:
    - bat-dg1-5:          NOTRUN -> [SKIP][15] ([fdo#109285])
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@kms_force_connector_basic@force-load-detect.html

  * igt@kms_psr@primary_page_flip:
    - bat-dg1-5:          NOTRUN -> [SKIP][16] ([i915#1072] / [i915#4078]) +3 similar issues
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@kms_psr@primary_page_flip.html

  * igt@kms_setmode@basic-clone-single-crtc:
    - bat-dg1-5:          NOTRUN -> [SKIP][17] ([i915#3555])
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@kms_setmode@basic-clone-single-crtc.html

  * igt@prime_vgem@basic-fence-mmap:
    - bat-dg1-5:          NOTRUN -> [SKIP][18] ([i915#3708] / [i915#4077]) +1 similar issue
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@prime_vgem@basic-fence-mmap.html

  * igt@prime_vgem@basic-userptr:
    - bat-dg1-5:          NOTRUN -> [SKIP][19] ([i915#3708] / [i915#4873])
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@prime_vgem@basic-userptr.html

  * igt@prime_vgem@basic-write:
    - bat-dg1-5:          NOTRUN -> [SKIP][20] ([i915#3708]) +3 similar issues
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@prime_vgem@basic-write.html

  * igt@runner@aborted:
    - bat-dg1-5:          NOTRUN -> [FAIL][21] ([i915#4312] / [i915#5257])
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-dg1-5/igt@runner@aborted.html

  
#### Possible fixes ####

  * igt@i915_selftest@live@gt_heartbeat:
    - {fi-tgl-dsi}:       [DMESG-FAIL][22] -> [PASS][23]
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/fi-tgl-dsi/igt@i915_selftest@live@gt_heartbeat.html
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/fi-tgl-dsi/igt@i915_selftest@live@gt_heartbeat.html

  * igt@i915_selftest@live@gt_timelines:
    - {bat-adlm-1}:       [INCOMPLETE][24] ([i915#5801]) -> [PASS][25]
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/bat-adlm-1/igt@i915_selftest@live@gt_timelines.html
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-adlm-1/igt@i915_selftest@live@gt_timelines.html

  * igt@i915_selftest@live@migrate:
    - {fi-tgl-dsi}:       [INCOMPLETE][26] -> [PASS][27]
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/fi-tgl-dsi/igt@i915_selftest@live@migrate.html
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/fi-tgl-dsi/igt@i915_selftest@live@migrate.html

  * igt@kms_flip@basic-flip-vs-modeset@b-edp1:
    - {bat-adlp-6}:       [DMESG-WARN][28] ([i915#3576]) -> [PASS][29] +1 similar issue
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/bat-adlp-6/igt@kms_flip@basic-flip-vs-modeset@b-edp1.html
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/bat-adlp-6/igt@kms_flip@basic-flip-vs-modeset@b-edp1.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#109284]: https://bugs.freedesktop.org/show_bug.cgi?id=109284
  [fdo#109285]: https://bugs.freedesktop.org/show_bug.cgi?id=109285
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [i915#1072]: https://gitlab.freedesktop.org/drm/intel/issues/1072
  [i915#1155]: https://gitlab.freedesktop.org/drm/intel/issues/1155
  [i915#2582]: https://gitlab.freedesktop.org/drm/intel/issues/2582
  [i915#3291]: https://gitlab.freedesktop.org/drm/intel/issues/3291
  [i915#3555]: https://gitlab.freedesktop.org/drm/intel/issues/3555
  [i915#3576]: https://gitlab.freedesktop.org/drm/intel/issues/3576
  [i915#3595]: https://gitlab.freedesktop.org/drm/intel/issues/3595
  [i915#3708]: https://gitlab.freedesktop.org/drm/intel/issues/3708
  [i915#4077]: https://gitlab.freedesktop.org/drm/intel/issues/4077
  [i915#4078]: https://gitlab.freedesktop.org/drm/intel/issues/4078
  [i915#4079]: https://gitlab.freedesktop.org/drm/intel/issues/4079
  [i915#4083]: https://gitlab.freedesktop.org/drm/intel/issues/4083
  [i915#4103]: https://gitlab.freedesktop.org/drm/intel/issues/4103
  [i915#4212]: https://gitlab.freedesktop.org/drm/intel/issues/4212
  [i915#4213]: https://gitlab.freedesktop.org/drm/intel/issues/4213
  [i915#4215]: https://gitlab.freedesktop.org/drm/intel/issues/4215
  [i915#4303]: https://gitlab.freedesktop.org/drm/intel/issues/4303
  [i915#4312]: https://gitlab.freedesktop.org/drm/intel/issues/4312
  [i915#4418]: https://gitlab.freedesktop.org/drm/intel/issues/4418
  [i915#4873]: https://gitlab.freedesktop.org/drm/intel/issues/4873
  [i915#5190]: https://gitlab.freedesktop.org/drm/intel/issues/5190
  [i915#5257]: https://gitlab.freedesktop.org/drm/intel/issues/5257
  [i915#5274]: https://gitlab.freedesktop.org/drm/intel/issues/5274
  [i915#5275]: https://gitlab.freedesktop.org/drm/intel/issues/5275
  [i915#5354]: https://gitlab.freedesktop.org/drm/intel/issues/5354
  [i915#5647]: https://gitlab.freedesktop.org/drm/intel/issues/5647
  [i915#5763]: https://gitlab.freedesktop.org/drm/intel/issues/5763
  [i915#5801]: https://gitlab.freedesktop.org/drm/intel/issues/5801


Build changes
-------------

  * Linux: CI_DRM_11588 -> Patchwork_102606v4

  CI-20190529: 20190529
  CI_DRM_11588: 68f638d8e33ee3d6110a6798b823f88e07eaef1f @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_6464: eddc67c5c85b8ee6eb4d13752ca43da5073dc985 @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_102606v4: 68f638d8e33ee3d6110a6798b823f88e07eaef1f @ git://anongit.freedesktop.org/gfx-ci/linux


### Linux commits

6cb8f5669a1e vfio: Remove calls to vfio_group_add_container_user()
b0cdfac001d7 vfio: Remove dead code
23ff94619847 drm/i915/gvt: Change from vfio_group_(un)pin_pages to vfio_(un)pin_pages
e562cdb99f47 vfio/mdev: Pass in a struct vfio_device * to vfio_dma_rw()
f930836ff194 vfio/mdev: Pass in a struct vfio_device * to vfio_pin/unpin_pages()
52652917f7bc vfio/ccw: Remove mdev from struct channel_program
dfbe8ff0fdcf vfio: Make vfio_(un)register_notifier accept a vfio_device

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/index.html

[-- Attachment #2: Type: text/html, Size: 11459 bytes --]

^ permalink raw reply	[flat|nested] 26+ messages in thread

* [Intel-gfx] ✓ Fi.CI.IGT: success for Make the rest of the VFIO driver interface use vfio_device (rev4)
  2022-05-02 17:31 ` [Intel-gfx] " Jason Gunthorpe
                   ` (10 preceding siblings ...)
  (?)
@ 2022-05-03  1:27 ` Patchwork
  -1 siblings, 0 replies; 26+ messages in thread
From: Patchwork @ 2022-05-03  1:27 UTC (permalink / raw)
  To: Jason Gunthorpe; +Cc: intel-gfx

[-- Attachment #1: Type: text/plain, Size: 49815 bytes --]

== Series Details ==

Series: Make the rest of the VFIO driver interface use vfio_device (rev4)
URL   : https://patchwork.freedesktop.org/series/102606/
State : success

== Summary ==

CI Bug Log - changes from CI_DRM_11588_full -> Patchwork_102606v4_full
====================================================

Summary
-------

  **SUCCESS**

  No regressions found.

  

Participating hosts (13 -> 13)
------------------------------

  No changes in participating hosts

Possible new issues
-------------------

  Here are the unknown changes that may have been introduced in Patchwork_102606v4_full:

### IGT changes ###

#### Suppressed ####

  The following results come from untrusted machines, tests, or statuses.
  They do not affect the overall result.

  * igt@i915_pm_rpm@system-suspend-modeset:
    - {shard-dg1}:        NOTRUN -> [INCOMPLETE][1]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-dg1-12/igt@i915_pm_rpm@system-suspend-modeset.html

  
Known issues
------------

  Here are the changes found in Patchwork_102606v4_full that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@drm_buddy@all@buddy_alloc_smoke:
    - shard-skl:          [PASS][2] -> [INCOMPLETE][3] ([i915#5800])
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-skl9/igt@drm_buddy@all@buddy_alloc_smoke.html
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl7/igt@drm_buddy@all@buddy_alloc_smoke.html

  * igt@feature_discovery@display-4x:
    - shard-tglb:         NOTRUN -> [SKIP][4] ([i915#1839])
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-tglb6/igt@feature_discovery@display-4x.html

  * igt@gem_exec_balancer@parallel-keep-in-fence:
    - shard-kbl:          NOTRUN -> [DMESG-WARN][5] ([i915#5076] / [i915#5614])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl6/igt@gem_exec_balancer@parallel-keep-in-fence.html

  * igt@gem_exec_fair@basic-none-rrul@rcs0:
    - shard-kbl:          [PASS][6] -> [FAIL][7] ([i915#2842])
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl1/igt@gem_exec_fair@basic-none-rrul@rcs0.html
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl7/igt@gem_exec_fair@basic-none-rrul@rcs0.html

  * igt@gem_exec_fair@basic-none@vecs0:
    - shard-apl:          [PASS][8] -> [FAIL][9] ([i915#2842])
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-apl1/igt@gem_exec_fair@basic-none@vecs0.html
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-apl3/igt@gem_exec_fair@basic-none@vecs0.html

  * igt@gem_exec_fair@basic-pace@vcs0:
    - shard-iclb:         [PASS][10] -> [FAIL][11] ([i915#2842]) +1 similar issue
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-iclb7/igt@gem_exec_fair@basic-pace@vcs0.html
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb7/igt@gem_exec_fair@basic-pace@vcs0.html

  * igt@gem_exec_flush@basic-batch-kernel-default-uc:
    - shard-snb:          [PASS][12] -> [SKIP][13] ([fdo#109271]) +3 similar issues
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-snb4/igt@gem_exec_flush@basic-batch-kernel-default-uc.html
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-snb6/igt@gem_exec_flush@basic-batch-kernel-default-uc.html

  * igt@gem_huc_copy@huc-copy:
    - shard-tglb:         [PASS][14] -> [SKIP][15] ([i915#2190])
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-tglb3/igt@gem_huc_copy@huc-copy.html
   [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-tglb7/igt@gem_huc_copy@huc-copy.html

  * igt@gem_lmem_swapping@parallel-random:
    - shard-kbl:          NOTRUN -> [SKIP][16] ([fdo#109271] / [i915#4613])
   [16]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl3/igt@gem_lmem_swapping@parallel-random.html

  * igt@gem_lmem_swapping@parallel-random-engines:
    - shard-apl:          NOTRUN -> [SKIP][17] ([fdo#109271] / [i915#4613]) +1 similar issue
   [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-apl8/igt@gem_lmem_swapping@parallel-random-engines.html

  * igt@gem_userptr_blits@coherency-unsync:
    - shard-tglb:         NOTRUN -> [SKIP][18] ([i915#3297])
   [18]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-tglb6/igt@gem_userptr_blits@coherency-unsync.html

  * igt@gem_userptr_blits@input-checking:
    - shard-skl:          NOTRUN -> [DMESG-WARN][19] ([i915#4991])
   [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl1/igt@gem_userptr_blits@input-checking.html

  * igt@gen7_exec_parse@basic-rejected:
    - shard-tglb:         NOTRUN -> [SKIP][20] ([fdo#109289])
   [20]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-tglb6/igt@gen7_exec_parse@basic-rejected.html

  * igt@gen9_exec_parse@allowed-single:
    - shard-glk:          [PASS][21] -> [DMESG-WARN][22] ([i915#5566] / [i915#716])
   [21]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-glk4/igt@gen9_exec_parse@allowed-single.html
   [22]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-glk9/igt@gen9_exec_parse@allowed-single.html
    - shard-apl:          [PASS][23] -> [DMESG-WARN][24] ([i915#5566] / [i915#716])
   [23]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-apl7/igt@gen9_exec_parse@allowed-single.html
   [24]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-apl6/igt@gen9_exec_parse@allowed-single.html

  * igt@i915_pm_rc6_residency@rc6-idle:
    - shard-iclb:         NOTRUN -> [WARN][25] ([i915#2684])
   [25]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb6/igt@i915_pm_rc6_residency@rc6-idle.html

  * igt@i915_pm_rpm@modeset-lpsp-stress:
    - shard-apl:          NOTRUN -> [SKIP][26] ([fdo#109271]) +83 similar issues
   [26]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-apl1/igt@i915_pm_rpm@modeset-lpsp-stress.html

  * igt@kms_big_fb@4-tiled-16bpp-rotate-0:
    - shard-tglb:         NOTRUN -> [SKIP][27] ([i915#5286])
   [27]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-tglb6/igt@kms_big_fb@4-tiled-16bpp-rotate-0.html

  * igt@kms_big_fb@x-tiled-16bpp-rotate-90:
    - shard-iclb:         NOTRUN -> [SKIP][28] ([fdo#110725] / [fdo#111614])
   [28]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb6/igt@kms_big_fb@x-tiled-16bpp-rotate-90.html

  * igt@kms_big_fb@yf-tiled-max-hw-stride-64bpp-rotate-0-hflip:
    - shard-iclb:         NOTRUN -> [SKIP][29] ([fdo#110723])
   [29]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb6/igt@kms_big_fb@yf-tiled-max-hw-stride-64bpp-rotate-0-hflip.html

  * igt@kms_big_fb@yf-tiled-max-hw-stride-64bpp-rotate-180-hflip:
    - shard-tglb:         NOTRUN -> [SKIP][30] ([fdo#111615]) +1 similar issue
   [30]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-tglb6/igt@kms_big_fb@yf-tiled-max-hw-stride-64bpp-rotate-180-hflip.html

  * igt@kms_ccs@pipe-a-ccs-on-another-bo-y_tiled_gen12_mc_ccs:
    - shard-apl:          NOTRUN -> [SKIP][31] ([fdo#109271] / [i915#3886]) +2 similar issues
   [31]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-apl8/igt@kms_ccs@pipe-a-ccs-on-another-bo-y_tiled_gen12_mc_ccs.html

  * igt@kms_ccs@pipe-a-crc-primary-rotation-180-y_tiled_gen12_rc_ccs_cc:
    - shard-skl:          NOTRUN -> [SKIP][32] ([fdo#109271] / [i915#3886]) +2 similar issues
   [32]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl10/igt@kms_ccs@pipe-a-crc-primary-rotation-180-y_tiled_gen12_rc_ccs_cc.html

  * igt@kms_ccs@pipe-a-missing-ccs-buffer-y_tiled_gen12_mc_ccs:
    - shard-kbl:          NOTRUN -> [SKIP][33] ([fdo#109271] / [i915#3886]) +3 similar issues
   [33]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl3/igt@kms_ccs@pipe-a-missing-ccs-buffer-y_tiled_gen12_mc_ccs.html

  * igt@kms_chamelium@hdmi-hpd:
    - shard-skl:          NOTRUN -> [SKIP][34] ([fdo#109271] / [fdo#111827]) +4 similar issues
   [34]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl10/igt@kms_chamelium@hdmi-hpd.html

  * igt@kms_color@pipe-d-gamma:
    - shard-iclb:         NOTRUN -> [SKIP][35] ([fdo#109278] / [i915#1149])
   [35]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb6/igt@kms_color@pipe-d-gamma.html

  * igt@kms_color_chamelium@pipe-b-ctm-0-25:
    - shard-kbl:          NOTRUN -> [SKIP][36] ([fdo#109271] / [fdo#111827]) +7 similar issues
   [36]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl7/igt@kms_color_chamelium@pipe-b-ctm-0-25.html

  * igt@kms_color_chamelium@pipe-d-ctm-0-75:
    - shard-apl:          NOTRUN -> [SKIP][37] ([fdo#109271] / [fdo#111827]) +3 similar issues
   [37]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-apl1/igt@kms_color_chamelium@pipe-d-ctm-0-75.html

  * igt@kms_cursor_crc@pipe-b-cursor-32x32-offscreen:
    - shard-tglb:         NOTRUN -> [SKIP][38] ([i915#3319])
   [38]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-tglb6/igt@kms_cursor_crc@pipe-b-cursor-32x32-offscreen.html

  * igt@kms_cursor_crc@pipe-b-cursor-32x32-sliding:
    - shard-iclb:         NOTRUN -> [SKIP][39] ([fdo#109278]) +1 similar issue
   [39]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb6/igt@kms_cursor_crc@pipe-b-cursor-32x32-sliding.html

  * igt@kms_cursor_crc@pipe-c-cursor-512x170-sliding:
    - shard-kbl:          NOTRUN -> [SKIP][40] ([fdo#109271] / [i915#5691])
   [40]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl3/igt@kms_cursor_crc@pipe-c-cursor-512x170-sliding.html

  * igt@kms_cursor_crc@pipe-c-cursor-suspend:
    - shard-apl:          [PASS][41] -> [DMESG-WARN][42] ([i915#180]) +3 similar issues
   [41]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-apl4/igt@kms_cursor_crc@pipe-c-cursor-suspend.html
   [42]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-apl1/igt@kms_cursor_crc@pipe-c-cursor-suspend.html

  * igt@kms_cursor_legacy@pipe-d-single-bo:
    - shard-kbl:          NOTRUN -> [SKIP][43] ([fdo#109271] / [i915#533])
   [43]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl7/igt@kms_cursor_legacy@pipe-d-single-bo.html

  * igt@kms_fbcon_fbt@fbc-suspend:
    - shard-apl:          [PASS][44] -> [INCOMPLETE][45] ([i915#180] / [i915#1982])
   [44]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-apl6/igt@kms_fbcon_fbt@fbc-suspend.html
   [45]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-apl6/igt@kms_fbcon_fbt@fbc-suspend.html

  * igt@kms_flip@2x-flip-vs-absolute-wf_vblank-interruptible:
    - shard-iclb:         NOTRUN -> [SKIP][46] ([fdo#109274])
   [46]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb6/igt@kms_flip@2x-flip-vs-absolute-wf_vblank-interruptible.html

  * igt@kms_flip@2x-plain-flip-fb-recreate-interruptible@ab-hdmi-a1-hdmi-a2:
    - shard-glk:          [PASS][47] -> [FAIL][48] ([i915#2122])
   [47]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-glk4/igt@kms_flip@2x-plain-flip-fb-recreate-interruptible@ab-hdmi-a1-hdmi-a2.html
   [48]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-glk9/igt@kms_flip@2x-plain-flip-fb-recreate-interruptible@ab-hdmi-a1-hdmi-a2.html

  * igt@kms_flip@flip-vs-expired-vblank-interruptible@c-dp1:
    - shard-kbl:          [PASS][49] -> [FAIL][50] ([i915#79])
   [49]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl4/igt@kms_flip@flip-vs-expired-vblank-interruptible@c-dp1.html
   [50]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl3/igt@kms_flip@flip-vs-expired-vblank-interruptible@c-dp1.html

  * igt@kms_flip@flip-vs-suspend-interruptible@a-dp1:
    - shard-kbl:          [PASS][51] -> [DMESG-WARN][52] ([i915#180]) +8 similar issues
   [51]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl1/igt@kms_flip@flip-vs-suspend-interruptible@a-dp1.html
   [52]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl4/igt@kms_flip@flip-vs-suspend-interruptible@a-dp1.html

  * igt@kms_flip@plain-flip-fb-recreate-interruptible@b-edp1:
    - shard-skl:          NOTRUN -> [FAIL][53] ([i915#2122]) +1 similar issue
   [53]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl9/igt@kms_flip@plain-flip-fb-recreate-interruptible@b-edp1.html

  * igt@kms_frontbuffer_tracking@fbc-1p-shrfb-fliptrack-mmap-gtt:
    - shard-skl:          NOTRUN -> [SKIP][54] ([fdo#109271]) +49 similar issues
   [54]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl9/igt@kms_frontbuffer_tracking@fbc-1p-shrfb-fliptrack-mmap-gtt.html

  * igt@kms_frontbuffer_tracking@fbc-2p-primscrn-pri-shrfb-draw-blt:
    - shard-iclb:         NOTRUN -> [SKIP][55] ([fdo#109280]) +2 similar issues
   [55]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb6/igt@kms_frontbuffer_tracking@fbc-2p-primscrn-pri-shrfb-draw-blt.html

  * igt@kms_frontbuffer_tracking@psr-2p-scndscrn-pri-indfb-draw-pwrite:
    - shard-tglb:         NOTRUN -> [SKIP][56] ([fdo#109280] / [fdo#111825]) +2 similar issues
   [56]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-tglb6/igt@kms_frontbuffer_tracking@psr-2p-scndscrn-pri-indfb-draw-pwrite.html

  * igt@kms_plane_alpha_blend@pipe-b-alpha-opaque-fb:
    - shard-skl:          NOTRUN -> [FAIL][57] ([fdo#108145] / [i915#265]) +1 similar issue
   [57]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl9/igt@kms_plane_alpha_blend@pipe-b-alpha-opaque-fb.html
    - shard-kbl:          NOTRUN -> [FAIL][58] ([fdo#108145] / [i915#265])
   [58]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl6/igt@kms_plane_alpha_blend@pipe-b-alpha-opaque-fb.html

  * igt@kms_plane_scaling@planes-upscale-20x20-downscale-factor-0-5@pipe-a-edp-1-planes-upscale-downscale:
    - shard-iclb:         [PASS][59] -> [SKIP][60] ([i915#5235]) +2 similar issues
   [59]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-iclb1/igt@kms_plane_scaling@planes-upscale-20x20-downscale-factor-0-5@pipe-a-edp-1-planes-upscale-downscale.html
   [60]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb2/igt@kms_plane_scaling@planes-upscale-20x20-downscale-factor-0-5@pipe-a-edp-1-planes-upscale-downscale.html

  * igt@kms_plane_scaling@scaler-with-clipping-clamping@pipe-b-edp-1-scaler-with-clipping-clamping:
    - shard-iclb:         [PASS][61] -> [INCOMPLETE][62] ([i915#5243])
   [61]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-iclb5/igt@kms_plane_scaling@scaler-with-clipping-clamping@pipe-b-edp-1-scaler-with-clipping-clamping.html
   [62]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb2/igt@kms_plane_scaling@scaler-with-clipping-clamping@pipe-b-edp-1-scaler-with-clipping-clamping.html

  * igt@kms_psr2_sf@overlay-plane-update-continuous-sf:
    - shard-apl:          NOTRUN -> [SKIP][63] ([fdo#109271] / [i915#658])
   [63]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-apl8/igt@kms_psr2_sf@overlay-plane-update-continuous-sf.html

  * igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area:
    - shard-skl:          NOTRUN -> [SKIP][64] ([fdo#109271] / [i915#658])
   [64]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl1/igt@kms_psr2_sf@overlay-plane-update-sf-dmg-area.html

  * igt@kms_psr2_su@frontbuffer-xrgb8888:
    - shard-iclb:         [PASS][65] -> [SKIP][66] ([fdo#109642] / [fdo#111068] / [i915#658])
   [65]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-iclb2/igt@kms_psr2_su@frontbuffer-xrgb8888.html
   [66]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb8/igt@kms_psr2_su@frontbuffer-xrgb8888.html

  * igt@kms_psr@psr2_cursor_mmap_gtt:
    - shard-tglb:         NOTRUN -> [FAIL][67] ([i915#132] / [i915#3467])
   [67]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-tglb6/igt@kms_psr@psr2_cursor_mmap_gtt.html

  * igt@kms_psr@psr2_primary_mmap_cpu:
    - shard-kbl:          NOTRUN -> [SKIP][68] ([fdo#109271]) +68 similar issues
   [68]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl3/igt@kms_psr@psr2_primary_mmap_cpu.html
    - shard-iclb:         [PASS][69] -> [SKIP][70] ([fdo#109441])
   [69]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-iclb2/igt@kms_psr@psr2_primary_mmap_cpu.html
   [70]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb6/igt@kms_psr@psr2_primary_mmap_cpu.html

  * igt@kms_psr_stress_test@flip-primary-invalidate-overlay:
    - shard-tglb:         [PASS][71] -> [SKIP][72] ([i915#5519])
   [71]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-tglb7/igt@kms_psr_stress_test@flip-primary-invalidate-overlay.html
   [72]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-tglb7/igt@kms_psr_stress_test@flip-primary-invalidate-overlay.html

  * igt@kms_writeback@writeback-check-output:
    - shard-skl:          NOTRUN -> [SKIP][73] ([fdo#109271] / [i915#2437])
   [73]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl9/igt@kms_writeback@writeback-check-output.html

  * igt@prime_nv_api@i915_nv_import_twice:
    - shard-tglb:         NOTRUN -> [SKIP][74] ([fdo#109291])
   [74]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-tglb6/igt@prime_nv_api@i915_nv_import_twice.html

  * igt@sysfs_clients@fair-7:
    - shard-apl:          NOTRUN -> [SKIP][75] ([fdo#109271] / [i915#2994]) +1 similar issue
   [75]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-apl8/igt@sysfs_clients@fair-7.html

  
#### Possible fixes ####

  * igt@gem_eio@unwedge-stress:
    - shard-iclb:         [TIMEOUT][76] ([i915#3070]) -> [PASS][77]
   [76]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-iclb4/igt@gem_eio@unwedge-stress.html
   [77]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb5/igt@gem_eio@unwedge-stress.html

  * igt@gem_exec_balancer@parallel-balancer:
    - shard-iclb:         [SKIP][78] ([i915#4525]) -> [PASS][79]
   [78]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-iclb7/igt@gem_exec_balancer@parallel-balancer.html
   [79]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb4/igt@gem_exec_balancer@parallel-balancer.html

  * igt@gem_exec_fair@basic-none-solo@rcs0:
    - shard-apl:          [FAIL][80] ([i915#2842]) -> [PASS][81] +1 similar issue
   [80]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-apl7/igt@gem_exec_fair@basic-none-solo@rcs0.html
   [81]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-apl6/igt@gem_exec_fair@basic-none-solo@rcs0.html

  * igt@gem_exec_fair@basic-none@vcs0:
    - shard-kbl:          [FAIL][82] ([i915#2842]) -> [PASS][83] +1 similar issue
   [82]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl3/igt@gem_exec_fair@basic-none@vcs0.html
   [83]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl1/igt@gem_exec_fair@basic-none@vcs0.html

  * igt@gem_exec_fair@basic-pace-share@rcs0:
    - shard-tglb:         [FAIL][84] ([i915#2842]) -> [PASS][85]
   [84]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-tglb5/igt@gem_exec_fair@basic-pace-share@rcs0.html
   [85]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-tglb1/igt@gem_exec_fair@basic-pace-share@rcs0.html
    - shard-glk:          [FAIL][86] ([i915#2842]) -> [PASS][87] +1 similar issue
   [86]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-glk5/igt@gem_exec_fair@basic-pace-share@rcs0.html
   [87]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-glk2/igt@gem_exec_fair@basic-pace-share@rcs0.html
    - {shard-rkl}:        [FAIL][88] ([i915#2842]) -> [PASS][89]
   [88]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-1/igt@gem_exec_fair@basic-pace-share@rcs0.html
   [89]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-5/igt@gem_exec_fair@basic-pace-share@rcs0.html

  * igt@gem_exec_fair@basic-pace@bcs0:
    - shard-iclb:         [FAIL][90] ([i915#2842]) -> [PASS][91]
   [90]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-iclb7/igt@gem_exec_fair@basic-pace@bcs0.html
   [91]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb7/igt@gem_exec_fair@basic-pace@bcs0.html

  * igt@gem_exec_suspend@basic-s0@smem:
    - {shard-rkl}:        [FAIL][92] ([fdo#103375]) -> [PASS][93]
   [92]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-4/igt@gem_exec_suspend@basic-s0@smem.html
   [93]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-6/igt@gem_exec_suspend@basic-s0@smem.html

  * igt@gem_exec_whisper@basic-queues-forked:
    - {shard-rkl}:        [INCOMPLETE][94] ([i915#5080]) -> [PASS][95] +1 similar issue
   [94]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-5/igt@gem_exec_whisper@basic-queues-forked.html
   [95]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-6/igt@gem_exec_whisper@basic-queues-forked.html

  * igt@i915_pm_rpm@fences:
    - {shard-rkl}:        [SKIP][96] ([i915#1849]) -> [PASS][97]
   [96]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-1/igt@i915_pm_rpm@fences.html
   [97]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-6/igt@i915_pm_rpm@fences.html

  * igt@i915_pm_rps@min-max-config-idle:
    - {shard-rkl}:        [FAIL][98] ([i915#4016]) -> [PASS][99]
   [98]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-1/igt@i915_pm_rps@min-max-config-idle.html
   [99]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-2/igt@i915_pm_rps@min-max-config-idle.html

  * igt@i915_selftest@live@execlists:
    - shard-kbl:          [INCOMPLETE][100] ([i915#794]) -> [PASS][101]
   [100]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl6/igt@i915_selftest@live@execlists.html
   [101]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl4/igt@i915_selftest@live@execlists.html

  * igt@i915_selftest@perf@request:
    - shard-kbl:          [INCOMPLETE][102] -> [PASS][103]
   [102]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl6/igt@i915_selftest@perf@request.html
   [103]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl7/igt@i915_selftest@perf@request.html

  * igt@kms_atomic@plane-invalid-params:
    - {shard-dg1}:        [SKIP][104] ([i915#2575]) -> [PASS][105] +6 similar issues
   [104]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-dg1-16/igt@kms_atomic@plane-invalid-params.html
   [105]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-dg1-17/igt@kms_atomic@plane-invalid-params.html

  * igt@kms_ccs@pipe-b-bad-aux-stride-y_tiled_gen12_rc_ccs:
    - {shard-rkl}:        [SKIP][106] ([i915#1845] / [i915#4098]) -> [PASS][107] +8 similar issues
   [106]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-2/igt@kms_ccs@pipe-b-bad-aux-stride-y_tiled_gen12_rc_ccs.html
   [107]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-6/igt@kms_ccs@pipe-b-bad-aux-stride-y_tiled_gen12_rc_ccs.html

  * igt@kms_color@pipe-a-ctm-negative:
    - {shard-rkl}:        [SKIP][108] ([i915#1149] / [i915#1849] / [i915#4070] / [i915#4098]) -> [PASS][109]
   [108]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-2/igt@kms_color@pipe-a-ctm-negative.html
   [109]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-6/igt@kms_color@pipe-a-ctm-negative.html

  * igt@kms_color@pipe-b-ctm-red-to-blue:
    - {shard-rkl}:        [SKIP][110] ([i915#1149] / [i915#4070] / [i915#4098]) -> [PASS][111] +1 similar issue
   [110]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-4/igt@kms_color@pipe-b-ctm-red-to-blue.html
   [111]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-6/igt@kms_color@pipe-b-ctm-red-to-blue.html

  * igt@kms_cursor_crc@pipe-a-cursor-64x64-random:
    - {shard-rkl}:        [SKIP][112] ([fdo#112022] / [i915#4070]) -> [PASS][113] +3 similar issues
   [112]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-1/igt@kms_cursor_crc@pipe-a-cursor-64x64-random.html
   [113]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-6/igt@kms_cursor_crc@pipe-a-cursor-64x64-random.html

  * igt@kms_cursor_legacy@pipe-c-single-bo:
    - {shard-rkl}:        [SKIP][114] ([i915#4070]) -> [PASS][115] +2 similar issues
   [114]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-2/igt@kms_cursor_legacy@pipe-c-single-bo.html
   [115]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-5/igt@kms_cursor_legacy@pipe-c-single-bo.html

  * igt@kms_cursor_legacy@short-flip-after-cursor-atomic-transitions:
    - {shard-rkl}:        [SKIP][116] ([fdo#111825] / [i915#4070]) -> [PASS][117]
   [116]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-5/igt@kms_cursor_legacy@short-flip-after-cursor-atomic-transitions.html
   [117]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-6/igt@kms_cursor_legacy@short-flip-after-cursor-atomic-transitions.html

  * igt@kms_draw_crc@draw-method-xrgb8888-mmap-wc-untiled:
    - {shard-rkl}:        [SKIP][118] ([fdo#111314] / [i915#4098] / [i915#4369]) -> [PASS][119] +1 similar issue
   [118]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-1/igt@kms_draw_crc@draw-method-xrgb8888-mmap-wc-untiled.html
   [119]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-6/igt@kms_draw_crc@draw-method-xrgb8888-mmap-wc-untiled.html

  * igt@kms_flip@2x-flip-vs-expired-vblank-interruptible@ab-hdmi-a1-hdmi-a2:
    - shard-glk:          [FAIL][120] ([i915#79]) -> [PASS][121]
   [120]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-glk4/igt@kms_flip@2x-flip-vs-expired-vblank-interruptible@ab-hdmi-a1-hdmi-a2.html
   [121]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-glk9/igt@kms_flip@2x-flip-vs-expired-vblank-interruptible@ab-hdmi-a1-hdmi-a2.html

  * igt@kms_flip@flip-vs-expired-vblank@c-edp1:
    - shard-skl:          [FAIL][122] ([i915#79]) -> [PASS][123]
   [122]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-skl7/igt@kms_flip@flip-vs-expired-vblank@c-edp1.html
   [123]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl10/igt@kms_flip@flip-vs-expired-vblank@c-edp1.html

  * igt@kms_flip@flip-vs-suspend@a-dp1:
    - shard-apl:          [DMESG-WARN][124] ([i915#180]) -> [PASS][125] +3 similar issues
   [124]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-apl2/igt@kms_flip@flip-vs-suspend@a-dp1.html
   [125]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-apl6/igt@kms_flip@flip-vs-suspend@a-dp1.html

  * igt@kms_flip@flip-vs-suspend@c-dp1:
    - shard-kbl:          [DMESG-WARN][126] ([i915#180]) -> [PASS][127] +3 similar issues
   [126]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl4/igt@kms_flip@flip-vs-suspend@c-dp1.html
   [127]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl1/igt@kms_flip@flip-vs-suspend@c-dp1.html

  * igt@kms_flip_scaled_crc@flip-32bpp-ytileccs-to-64bpp-ytile-upscaling:
    - shard-glk:          [FAIL][128] ([i915#4911]) -> [PASS][129]
   [128]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-glk8/igt@kms_flip_scaled_crc@flip-32bpp-ytileccs-to-64bpp-ytile-upscaling.html
   [129]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-glk3/igt@kms_flip_scaled_crc@flip-32bpp-ytileccs-to-64bpp-ytile-upscaling.html

  * igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-16bpp-ytile-downscaling:
    - shard-iclb:         [SKIP][130] ([i915#3701]) -> [PASS][131] +1 similar issue
   [130]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-iclb2/igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-16bpp-ytile-downscaling.html
   [131]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb8/igt@kms_flip_scaled_crc@flip-64bpp-ytile-to-16bpp-ytile-downscaling.html

  * igt@kms_frontbuffer_tracking@psr-1p-primscrn-indfb-plflip-blt:
    - {shard-rkl}:        [SKIP][132] ([i915#1849] / [i915#4098]) -> [PASS][133] +8 similar issues
   [132]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-5/igt@kms_frontbuffer_tracking@psr-1p-primscrn-indfb-plflip-blt.html
   [133]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-6/igt@kms_frontbuffer_tracking@psr-1p-primscrn-indfb-plflip-blt.html

  * igt@kms_hdr@bpc-switch-dpms@bpc-switch-dpms-edp-1-pipe-a:
    - shard-skl:          [FAIL][134] ([i915#1188]) -> [PASS][135] +1 similar issue
   [134]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-skl9/igt@kms_hdr@bpc-switch-dpms@bpc-switch-dpms-edp-1-pipe-a.html
   [135]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl7/igt@kms_hdr@bpc-switch-dpms@bpc-switch-dpms-edp-1-pipe-a.html

  * igt@kms_invalid_mode@bad-htotal:
    - {shard-rkl}:        [SKIP][136] ([i915#4278]) -> [PASS][137]
   [136]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-5/igt@kms_invalid_mode@bad-htotal.html
   [137]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-6/igt@kms_invalid_mode@bad-htotal.html

  * igt@kms_plane_alpha_blend@pipe-a-alpha-basic:
    - {shard-rkl}:        [SKIP][138] ([i915#4070] / [i915#4098]) -> [PASS][139]
   [138]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-4/igt@kms_plane_alpha_blend@pipe-a-alpha-basic.html
   [139]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-6/igt@kms_plane_alpha_blend@pipe-a-alpha-basic.html

  * igt@kms_plane_alpha_blend@pipe-c-coverage-7efc:
    - shard-skl:          [FAIL][140] ([fdo#108145] / [i915#265]) -> [PASS][141] +1 similar issue
   [140]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-skl6/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html
   [141]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl4/igt@kms_plane_alpha_blend@pipe-c-coverage-7efc.html

  * igt@kms_plane_scaling@planes-unity-scaling-downscale-factor-0-5@pipe-a-edp-1-planes-upscale-downscale:
    - shard-iclb:         [SKIP][142] ([i915#5235]) -> [PASS][143] +2 similar issues
   [142]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-iclb2/igt@kms_plane_scaling@planes-unity-scaling-downscale-factor-0-5@pipe-a-edp-1-planes-upscale-downscale.html
   [143]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb6/igt@kms_plane_scaling@planes-unity-scaling-downscale-factor-0-5@pipe-a-edp-1-planes-upscale-downscale.html

  * igt@kms_psr@cursor_mmap_cpu:
    - {shard-rkl}:        [SKIP][144] ([i915#1072]) -> [PASS][145]
   [144]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-rkl-2/igt@kms_psr@cursor_mmap_cpu.html
   [145]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-rkl-6/igt@kms_psr@cursor_mmap_cpu.html

  * igt@kms_psr_stress_test@invalidate-primary-flip-overlay:
    - shard-tglb:         [SKIP][146] ([i915#5519]) -> [PASS][147]
   [146]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-tglb6/igt@kms_psr_stress_test@invalidate-primary-flip-overlay.html
   [147]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-tglb1/igt@kms_psr_stress_test@invalidate-primary-flip-overlay.html

  * igt@kms_vblank@pipe-a-ts-continuation-suspend:
    - shard-skl:          [INCOMPLETE][148] ([i915#4939]) -> [PASS][149] +1 similar issue
   [148]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-skl7/igt@kms_vblank@pipe-a-ts-continuation-suspend.html
   [149]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl10/igt@kms_vblank@pipe-a-ts-continuation-suspend.html

  * igt@perf_pmu@module-unload:
    - shard-skl:          [DMESG-WARN][150] ([i915#1982]) -> [PASS][151]
   [150]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-skl9/igt@perf_pmu@module-unload.html
   [151]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl7/igt@perf_pmu@module-unload.html

  * igt@sysfs_heartbeat_interval@mixed@bcs0:
    - shard-skl:          [FAIL][152] ([i915#1731]) -> [PASS][153]
   [152]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-skl4/igt@sysfs_heartbeat_interval@mixed@bcs0.html
   [153]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl6/igt@sysfs_heartbeat_interval@mixed@bcs0.html

  * igt@sysfs_heartbeat_interval@mixed@rcs0:
    - shard-skl:          [WARN][154] ([i915#4055]) -> [PASS][155]
   [154]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-skl4/igt@sysfs_heartbeat_interval@mixed@rcs0.html
   [155]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-skl6/igt@sysfs_heartbeat_interval@mixed@rcs0.html

  
#### Warnings ####

  * igt@gem_exec_balancer@parallel-contexts:
    - shard-iclb:         [SKIP][156] ([i915#4525]) -> [DMESG-WARN][157] ([i915#5614]) +1 similar issue
   [156]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-iclb5/igt@gem_exec_balancer@parallel-contexts.html
   [157]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb1/igt@gem_exec_balancer@parallel-contexts.html

  * igt@gem_exec_balancer@parallel-keep-submit-fence:
    - shard-iclb:         [DMESG-WARN][158] ([i915#5614]) -> [SKIP][159] ([i915#4525])
   [158]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-iclb2/igt@gem_exec_balancer@parallel-keep-submit-fence.html
   [159]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb6/igt@gem_exec_balancer@parallel-keep-submit-fence.html

  * igt@kms_psr2_sf@overlay-plane-update-continuous-sf:
    - shard-iclb:         [SKIP][160] ([i915#2920]) -> [SKIP][161] ([fdo#111068] / [i915#658])
   [160]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-iclb2/igt@kms_psr2_sf@overlay-plane-update-continuous-sf.html
   [161]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb6/igt@kms_psr2_sf@overlay-plane-update-continuous-sf.html

  * igt@kms_psr2_sf@primary-plane-update-sf-dmg-area:
    - shard-iclb:         [SKIP][162] ([fdo#111068] / [i915#658]) -> [SKIP][163] ([i915#2920]) +2 similar issues
   [162]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-iclb1/igt@kms_psr2_sf@primary-plane-update-sf-dmg-area.html
   [163]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-iclb2/igt@kms_psr2_sf@primary-plane-update-sf-dmg-area.html

  * igt@runner@aborted:
    - shard-kbl:          ([FAIL][164], [FAIL][165], [FAIL][166], [FAIL][167], [FAIL][168], [FAIL][169], [FAIL][170], [FAIL][171], [FAIL][172], [FAIL][173], [FAIL][174], [FAIL][175], [FAIL][176], [FAIL][177]) ([fdo#109271] / [i915#180] / [i915#3002] / [i915#4312] / [i915#5257] / [i915#716] / [i915#92]) -> ([FAIL][178], [FAIL][179], [FAIL][180], [FAIL][181], [FAIL][182], [FAIL][183], [FAIL][184], [FAIL][185], [FAIL][186], [FAIL][187], [FAIL][188], [FAIL][189], [FAIL][190], [FAIL][191]) ([fdo#109271] / [i915#180] / [i915#3002] / [i915#4312] / [i915#5257])
   [164]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl7/igt@runner@aborted.html
   [165]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl7/igt@runner@aborted.html
   [166]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl7/igt@runner@aborted.html
   [167]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl1/igt@runner@aborted.html
   [168]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl3/igt@runner@aborted.html
   [169]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl4/igt@runner@aborted.html
   [170]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl7/igt@runner@aborted.html
   [171]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl7/igt@runner@aborted.html
   [172]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl7/igt@runner@aborted.html
   [173]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl3/igt@runner@aborted.html
   [174]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl6/igt@runner@aborted.html
   [175]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl6/igt@runner@aborted.html
   [176]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl6/igt@runner@aborted.html
   [177]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_11588/shard-kbl1/igt@runner@aborted.html
   [178]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl6/igt@runner@aborted.html
   [179]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl4/igt@runner@aborted.html
   [180]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl3/igt@runner@aborted.html
   [181]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl6/igt@runner@aborted.html
   [182]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl4/igt@runner@aborted.html
   [183]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl1/igt@runner@aborted.html
   [184]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl6/igt@runner@aborted.html
   [185]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl7/igt@runner@aborted.html
   [186]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl4/igt@runner@aborted.html
   [187]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl3/igt@runner@aborted.html
   [188]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl4/igt@runner@aborted.html
   [189]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl7/igt@runner@aborted.html
   [190]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl6/igt@runner@aborted.html
   [191]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/shard-kbl6/igt@runner@aborted.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#103375]: https://bugs.freedesktop.org/show_bug.cgi?id=103375
  [fdo#108145]: https://bugs.freedesktop.org/show_bug.cgi?id=108145
  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#109274]: https://bugs.freedesktop.org/show_bug.cgi?id=109274
  [fdo#109278]: https://bugs.freedesktop.org/show_bug.cgi?id=109278
  [fdo#109279]: https://bugs.freedesktop.org/show_bug.cgi?id=109279
  [fdo#109280]: https://bugs.freedesktop.org/show_bug.cgi?id=109280
  [fdo#109283]: https://bugs.freedesktop.org/show_bug.cgi?id=109283
  [fdo#109285]: https://bugs.freedesktop.org/show_bug.cgi?id=109285
  [fdo#109289]: https://bugs.freedesktop.org/show_bug.cgi?id=109289
  [fdo#109291]: https://bugs.freedesktop.org/show_bug.cgi?id=109291
  [fdo#109295]: https://bugs.freedesktop.org/show_bug.cgi?id=109295
  [fdo#109300]: https://bugs.freedesktop.org/show_bug.cgi?id=109300
  [fdo#109307]: https://bugs.freedesktop.org/show_bug.cgi?id=109307
  [fdo#109308]: https://bugs.freedesktop.org/show_bug.cgi?id=109308
  [fdo#109309]: https://bugs.freedesktop.org/show_bug.cgi?id=109309
  [fdo#109312]: https://bugs.freedesktop.org/show_bug.cgi?id=109312
  [fdo#109441]: https://bugs.freedesktop.org/show_bug.cgi?id=109441
  [fdo#109642]: https://bugs.freedesktop.org/show_bug.cgi?id=109642
  [fdo#110189]: https://bugs.freedesktop.org/show_bug.cgi?id=110189
  [fdo#110723]: https://bugs.freedesktop.org/show_bug.cgi?id=110723
  [fdo#110725]: https://bugs.freedesktop.org/show_bug.cgi?id=110725
  [fdo#111068]: https://bugs.freedesktop.org/show_bug.cgi?id=111068
  [fdo#111314]: https://bugs.freedesktop.org/show_bug.cgi?id=111314
  [fdo#111614]: https://bugs.freedesktop.org/show_bug.cgi?id=111614
  [fdo#111615]: https://bugs.freedesktop.org/show_bug.cgi?id=111615
  [fdo#111644]: https://bugs.freedesktop.org/show_bug.cgi?id=111644
  [fdo#111656]: https://bugs.freedesktop.org/show_bug.cgi?id=111656
  [fdo#111825]: https://bugs.freedesktop.org/show_bug.cgi?id=111825
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [fdo#112022]: https://bugs.freedesktop.org/show_bug.cgi?id=112022
  [fdo#112054]: https://bugs.freedesktop.org/show_bug.cgi?id=112054
  [fdo#112283]: https://bugs.freedesktop.org/show_bug.cgi?id=112283
  [i915#1063]: https://gitlab.freedesktop.org/drm/intel/issues/1063
  [i915#1072]: https://gitlab.freedesktop.org/drm/intel/issues/1072
  [i915#1149]: https://gitlab.freedesktop.org/drm/intel/issues/1149
  [i915#1155]: https://gitlab.freedesktop.org/drm/intel/issues/1155
  [i915#1188]: https://gitlab.freedesktop.org/drm/intel/issues/1188
  [i915#132]: https://gitlab.freedesktop.org/drm/intel/issues/132
  [i915#1397]: https://gitlab.freedesktop.org/drm/intel/issues/1397
  [i915#1722]: https://gitlab.freedesktop.org/drm/intel/issues/1722
  [i915#1731]: https://gitlab.freedesktop.org/drm/intel/issues/1731
  [i915#1769]: https://gitlab.freedesktop.org/drm/intel/issues/1769
  [i915#180]: https://gitlab.freedesktop.org/drm/intel/issues/180
  [i915#1825]: https://gitlab.freedesktop.org/drm/intel/issues/1825
  [i915#1839]: https://gitlab.freedesktop.org/drm/intel/issues/1839
  [i915#1845]: https://gitlab.freedesktop.org/drm/intel/issues/1845
  [i915#1849]: https://gitlab.freedesktop.org/drm/intel/issues/1849
  [i915#1911]: https://gitlab.freedesktop.org/drm/intel/issues/1911
  [i915#1982]: https://gitlab.freedesktop.org/drm/intel/issues/1982
  [i915#2122]: https://gitlab.freedesktop.org/drm/intel/issues/2122
  [i915#2190]: https://gitlab.freedesktop.org/drm/intel/issues/2190
  [i915#2410]: https://gitlab.freedesktop.org/drm/intel/issues/2410
  [i915#2433]: https://gitlab.freedesktop.org/drm/intel/issues/2433
  [i915#2435]: https://gitlab.freedesktop.org/drm/intel/issues/2435
  [i915#2437]: https://gitlab.freedesktop.org/drm/intel/issues/2437
  [i915#2527]: https://gitlab.freedesktop.org/drm/intel/issues/2527
  [i915#2530]: https://gitlab.freedesktop.org/drm/intel/issues/2530
  [i915#2575]: https://gitlab.freedesktop.org/drm/intel/issues/2575
  [i915#2582]: https://gitlab.freedesktop.org/drm/intel/issues/2582
  [i915#2587]: https://gitlab.freedesktop.org/drm/intel/issues/2587
  [i915#265]: https://gitlab.freedesktop.org/drm/intel/issues/265
  [i915#2681]: https://gitlab.freedesktop.org/drm/intel/issues/2681
  [i915#2684]: https://gitlab.freedesktop.org/drm/intel/issues/2684
  [i915#2705]: https://gitlab.freedesktop.org/drm/intel/issues/2705
  [i915#284]: https://gitlab.freedesktop.org/drm/intel/issues/284
  [i915#2842]: https://gitlab.freedesktop.org/drm/intel/issues/2842
  [i915#2849]: https://gitlab.freedesktop.org/drm/intel/issues/2849
  [i915#2856]: https://gitlab.freedesktop.org/drm/intel/issues/2856
  [i915#2920]: https://gitlab.freedesktop.org/drm/intel/issues/2920
  [i915#2994]: https://gitlab.freedesktop.org/drm/intel/issues/2994
  [i915#3002]: https://gitlab.freedesktop.org/drm/intel/issues/3002
  [i915#3012]: https://gitlab.freedesktop.org/drm/intel/issues/3012
  [i915#3070]: https://gitlab.freedesktop.org/drm/intel/issues/3070
  [i915#3116]: https://gitlab.freedesktop.org/drm/intel/issues/3116
  [i915#3281]: https://gitlab.freedesktop.org/drm/intel/issues/3281
  [i915#3282]: https://gitlab.freedesktop.org/drm/intel/issues/3282
  [i915#3291]: https://gitlab.freedesktop.org/drm/intel/issues/3291
  [i915#3297]: https://gitlab.freedesktop.org/drm/intel/issues/3297
  [i915#3299]: https://gitlab.freedesktop.org/drm/intel/issues/3299
  [i915#3319]: https://gitlab.freedesktop.org/drm/intel/issues/3319
  [i915#3323]: https://gitlab.freedesktop.org/drm/intel/issues/3323
  [i915#3359]: https://gitlab.freedesktop.org/drm/intel/issues/3359
  [i915#3376]: https://gitlab.freedesktop.org/drm/intel/issues/3376
  [i915#3458]: https://gitlab.freedesktop.org/drm/intel/issues/3458
  [i915#3464]: https://gitlab.freedesktop.org/drm/intel/issues/3464
  [i915#3467]: https://gitlab.freedesktop.org/drm/intel/issues/3467
  [i915#3536]: https://gitlab.freedesktop.org/drm/intel/issues/3536
  [i915#3539]: https://gitlab.freedesktop.org/drm/intel/issues/3539
  [i915#3555]: https://gitlab.freedesktop.org/drm/intel/issues/3555
  [i915#3558]: https://gitlab.freedesktop.org/drm/intel/issues/3558
  [i915#3637]: https://gitlab.freedesktop.org/drm/intel/issues/3637
  [i915#3638]: https://gitlab.freedesktop.org/drm/intel/issues/3638
  [i915#3689]: https://gitlab.freedesktop.org/drm/intel/issues/3689
  [i915#3701]: https://gitlab.freedesktop.org/drm/intel/issues/3701
  [i915#3708]: https://gitlab.freedesktop.org/drm/intel/issues/3708
  [i915#3734]: https://gitlab.freedesktop.org/drm/intel/issues/3734
  [i915#3828]: https://gitlab.freedesktop.org/drm/intel/issues/3828
  [i915#3886]: https://gitlab.freedesktop.org/drm/intel/issues/3886
  [i915#3952]: https://gitlab.freedesktop.org/drm/intel/issues/3952
  [i915#3955]: https://gitlab.freedesktop.org/drm/intel/issues/3955
  [i915#4016]: https://gitlab.freedesktop.org/drm/intel/issues/4016
  [i915#4055]: https://gitlab.freedesktop.org/drm/intel/issues/4055
  [i915#4070]: https://gitlab.freedesktop.org/drm/intel/issues/4070
  [i915#4077]: https://gitlab.freedesktop.org/drm/intel/issues/4077
  [i915#4079]: https://gitlab.freedesktop.org/drm/intel/issues/4079
  [i915#4083]: https://gitlab.freedesktop.org/drm/intel/issues/4083
  [i915#4098]: https://gitlab.freedesktop.org/drm/intel/issues/4098
  [i915#4103]: https://gitlab.freedesktop.org/drm/intel/issues/4103
  [i915#4270]: https://gitlab.freedesktop.org/drm/intel/issues/4270
  [i915#4278]: https://gitlab.freedesktop.org/drm/intel/issues/4278
  [i915#4281]: https://gitlab.freedesktop.org/drm/intel/issues/4281
  [i915#4312]: https://gitlab.freedesktop.org/drm/intel/issues/4312
  [i915#4369]: https://gitlab.freedesktop.org/drm/intel/issues/4369
  [i915#4525]: https://gitlab.freedesktop.org/drm/intel/issues/4525
  [i915#4538]: https://gitlab.freedesktop.org/drm/intel/issues/4538
  [i915#454]: https://gitlab.freedesktop.org/drm/intel/issues/454
  [i915#4613]: https://gitlab.freedesktop.org/drm/intel/issues/4613
  [i915#4812]: https://gitlab.freedesktop.org/drm/intel/issues/4812
  [i915#4833]: https://gitlab.freedesktop.org/drm/intel/issues/4833
  [i915#4842]: https://gitlab.freedesktop.org/drm/intel/issues/4842
  [i915#4852]: https://gitlab.freedesktop.org/drm/intel/issues/4852
  [i915#4853]: https://gitlab.freedesktop.org/drm/intel/issues/4853
  [i915#4860]: https://gitlab.freedesktop.org/drm/intel/issues/4860
  [i915#4873]: https://gitlab.freedesktop.org/drm/intel/issues/4873
  [i915#4877]: https://gitlab.freedesktop.org/drm/intel/issues/4877
  [i915#4893]: https://gitlab.freedesktop.org/drm/intel/issues/4893
  [i915#4911]: https://gitlab.freedesktop.org/drm/intel/issues/4911
  [i915#4939]: https://gitlab.freedesktop.org/drm/intel/issues/4939
  [i915#4991]: https://gitlab.freedesktop.org/drm/intel/issues/4991
  [i915#5076]: https://gitlab.freedesktop.org/drm/intel/issues/5076
  [i915#5080]: https://gitlab.freedesktop.org/drm/intel/issues/5080
  [i915#5098]: https://gitlab.freedesktop.org/drm/intel/issues/5098
  [i915#5176]: https://gitlab.freedesktop.org/drm/intel/issues/5176
  [i915#5182]: https://gitlab.freedesktop.org/drm/intel/issues/5182
  [i915#5235]: https://gitlab.freedesktop.org/drm/intel/issues/5235
  [i915#5243]: https://gitlab.freedesktop.org/drm/intel/issues/5243
  [i915#5257]: https://gitlab.freedesktop.org/drm/intel/issues/5257
  [i915#5286]: https://gitlab.freedesktop.org/drm/intel/issues/5286
  [i915#5287]: https://gitlab.freedesktop.org/drm/intel/issues/5287
  [i915#5288]: https://gitlab.freedesktop.org/drm/intel/issues/5288
  [i915#5325]: https://gitlab.freedesktop.org/drm/intel/issues/5325
  [i915#533]: https://gitlab.freedesktop.org/drm/intel/issues/533
  [i915#5439]: https://gitlab.freedesktop.org/drm/intel/issues/5439
  [i915#5519]: https://gitlab.freedesktop.org/drm/intel/issues/5519
  [i915#5563]: https://gitlab.freedesktop.org/drm/intel/issues/5563
  [i915#5566]: https://gitlab.freedesktop.org/drm/intel/issues/5566
  [i915#5614]: https://gitlab.freedesktop.org/drm/intel/issues/5614
  [i915#5691]: https://gitlab.freedesktop.org/drm/intel/issues/5691
  [i915#5745]: https://gitlab.freedesktop.org/drm/intel/issues/5745
  [i915#5784]: https://gitlab.freedesktop.org/drm/intel/issues/5784
  [i915#5800]: https://gitlab.freedesktop.org/drm/intel/issues/5800
  [i915#5849]: https://gitlab.freedesktop.org/drm/intel/issues/5849
  [i915#658]: https://gitlab.freedesktop.org/drm/intel/issues/658
  [i915#716]: https://gitlab.freedesktop.org/drm/intel/issues/716
  [i915#79]: https://gitlab.freedesktop.org/drm/intel/issues/79
  [i915#794]: https://gitlab.freedesktop.org/drm/intel/issues/794
  [i915#92]: https://gitlab.freedesktop.org/drm/intel/issues/92


Build changes
-------------

  * Linux: CI_DRM_11588 -> Patchwork_102606v4

  CI-20190529: 20190529
  CI_DRM_11588: 68f638d8e33ee3d6110a6798b823f88e07eaef1f @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_6464: eddc67c5c85b8ee6eb4d13752ca43da5073dc985 @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_102606v4: 68f638d8e33ee3d6110a6798b823f88e07eaef1f @ git://anongit.freedesktop.org/gfx-ci/linux
  piglit_4509: fdc5a4ca11124ab8413c7988896eec4c97336694 @ git://anongit.freedesktop.org/piglit

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_102606v4/index.html

[-- Attachment #2: Type: text/html, Size: 53077 bytes --]

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [Intel-gfx] [PATCH v3 0/7] Make the rest of the VFIO driver interface use vfio_device
  2022-05-02 17:31 ` [Intel-gfx] " Jason Gunthorpe
@ 2022-05-04 17:49   ` Jason Gunthorpe
  -1 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-04 17:49 UTC (permalink / raw)
  To: Alex Williamson
  Cc: Tony Krowiak, Jason J. Herne, Eric Farman, Liu, Yi L, kvm,
	intel-gfx, intel-gvt-dev, Christoph Hellwig

On Mon, May 02, 2022 at 02:31:30PM -0300, Jason Gunthorpe wrote:
> Prior series have transformed other parts of VFIO from working on struct
> device or struct vfio_group into working directly on struct
> vfio_device. Based on that work we now have vfio_device's readily
> available in all the drivers.
> 
> Update the rest of the driver facing API to use vfio_device as an input.
> 
> The following are switched from struct device to struct vfio_device:
>   vfio_register_notifier()
>   vfio_unregister_notifier()
>   vfio_pin_pages()
>   vfio_unpin_pages()
>   vfio_dma_rw()
> 
> The following group APIs are obsoleted and removed by just using struct
> vfio_device with the above:
>   vfio_group_pin_pages()
>   vfio_group_unpin_pages()
>   vfio_group_iommu_domain()
>   vfio_group_get_external_user_from_dev()
> 
> To retain the performance of the new device APIs relative to their group
> versions optimize how vfio_group_add_container_user() is used to avoid
> calling it when the driver must already guarantee the device is open and
> the container_users incrd.
> 
> The remaining exported VFIO group interfaces are only used by kvm, and are
> addressed by a parallel series.
> 
> This series is based on Christoph's gvt rework here:
> 
>  https://lore.kernel.org/all/5a8b9f48-2c32-8177-1c18-e3bd7bfde558@intel.com/
> 
> and so will need the PR merged first.
> 
> I have a followup series that needs this.
> 
> This is also part of the iommufd work - moving the driver facing interface
> to vfio_device provides a much cleaner path to integrate with iommufd.
> 
> v3:
>  - Based on VFIO's gvt/iommu merge
>  - Remove mention of mdev_legacy_get_vfio_device() from commit message
>  - Clarify commit message for vfio_dma_rw() conversion
>  - Talk about the open_count change in the commit message
>  - No code change
> v2: https://lore.kernel.org/r/0-v2-6011bde8e0a1+5f-vfio_mdev_no_group_jgg@nvidia.com
>  - Based on Christoph's series so mdev_legacy_get_vfio_device() is removed
>  - Reflow indenting
>  - Use vfio_assert_device_open() and WARN_ON_ONCE instead of open coding
>    the assertion
> v1: https://lore.kernel.org/r/0-v1-a8faf768d202+125dd-vfio_mdev_no_group_jgg@nvidia.com

Hi Alex,

This v3 is still good to go, it applies clean on top of the gvt series.

Thanks,
Jason

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v3 0/7] Make the rest of the VFIO driver interface use vfio_device
@ 2022-05-04 17:49   ` Jason Gunthorpe
  0 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-04 17:49 UTC (permalink / raw)
  To: Alex Williamson
  Cc: Tony Krowiak, Eric Farman, Christoph Hellwig, intel-gfx,
	intel-gvt-dev, Jason J. Herne, Tian, Kevin, kvm, Liu, Yi L

On Mon, May 02, 2022 at 02:31:30PM -0300, Jason Gunthorpe wrote:
> Prior series have transformed other parts of VFIO from working on struct
> device or struct vfio_group into working directly on struct
> vfio_device. Based on that work we now have vfio_device's readily
> available in all the drivers.
> 
> Update the rest of the driver facing API to use vfio_device as an input.
> 
> The following are switched from struct device to struct vfio_device:
>   vfio_register_notifier()
>   vfio_unregister_notifier()
>   vfio_pin_pages()
>   vfio_unpin_pages()
>   vfio_dma_rw()
> 
> The following group APIs are obsoleted and removed by just using struct
> vfio_device with the above:
>   vfio_group_pin_pages()
>   vfio_group_unpin_pages()
>   vfio_group_iommu_domain()
>   vfio_group_get_external_user_from_dev()
> 
> To retain the performance of the new device APIs relative to their group
> versions optimize how vfio_group_add_container_user() is used to avoid
> calling it when the driver must already guarantee the device is open and
> the container_users incrd.
> 
> The remaining exported VFIO group interfaces are only used by kvm, and are
> addressed by a parallel series.
> 
> This series is based on Christoph's gvt rework here:
> 
>  https://lore.kernel.org/all/5a8b9f48-2c32-8177-1c18-e3bd7bfde558@intel.com/
> 
> and so will need the PR merged first.
> 
> I have a followup series that needs this.
> 
> This is also part of the iommufd work - moving the driver facing interface
> to vfio_device provides a much cleaner path to integrate with iommufd.
> 
> v3:
>  - Based on VFIO's gvt/iommu merge
>  - Remove mention of mdev_legacy_get_vfio_device() from commit message
>  - Clarify commit message for vfio_dma_rw() conversion
>  - Talk about the open_count change in the commit message
>  - No code change
> v2: https://lore.kernel.org/r/0-v2-6011bde8e0a1+5f-vfio_mdev_no_group_jgg@nvidia.com
>  - Based on Christoph's series so mdev_legacy_get_vfio_device() is removed
>  - Reflow indenting
>  - Use vfio_assert_device_open() and WARN_ON_ONCE instead of open coding
>    the assertion
> v1: https://lore.kernel.org/r/0-v1-a8faf768d202+125dd-vfio_mdev_no_group_jgg@nvidia.com

Hi Alex,

This v3 is still good to go, it applies clean on top of the gvt series.

Thanks,
Jason

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v3 0/7] Make the rest of the VFIO driver interface use vfio_device
  2022-05-04 17:49   ` Jason Gunthorpe
@ 2022-05-05 18:56     ` Alex Williamson
  -1 siblings, 0 replies; 26+ messages in thread
From: Alex Williamson @ 2022-05-05 18:56 UTC (permalink / raw)
  To: Jason Gunthorpe
  Cc: Tony Krowiak, Eric Farman, Christoph Hellwig, intel-gfx,
	intel-gvt-dev, Jason J. Herne, Tian, Kevin, kvm, Liu, Yi L,
	zhenyuw, zhi.a.wang

On Wed, 4 May 2022 14:49:26 -0300
Jason Gunthorpe <jgg@nvidia.com> wrote:

> On Mon, May 02, 2022 at 02:31:30PM -0300, Jason Gunthorpe wrote:
> > Prior series have transformed other parts of VFIO from working on struct
> > device or struct vfio_group into working directly on struct
> > vfio_device. Based on that work we now have vfio_device's readily
> > available in all the drivers.
> > 
> > Update the rest of the driver facing API to use vfio_device as an input.
> > 
> > The following are switched from struct device to struct vfio_device:
> >   vfio_register_notifier()
> >   vfio_unregister_notifier()
> >   vfio_pin_pages()
> >   vfio_unpin_pages()
> >   vfio_dma_rw()
> > 
> > The following group APIs are obsoleted and removed by just using struct
> > vfio_device with the above:
> >   vfio_group_pin_pages()
> >   vfio_group_unpin_pages()
> >   vfio_group_iommu_domain()
> >   vfio_group_get_external_user_from_dev()
> > 
> > To retain the performance of the new device APIs relative to their group
> > versions optimize how vfio_group_add_container_user() is used to avoid
> > calling it when the driver must already guarantee the device is open and
> > the container_users incrd.
> > 
> > The remaining exported VFIO group interfaces are only used by kvm, and are
> > addressed by a parallel series.
> > 
> > This series is based on Christoph's gvt rework here:
> > 
> >  https://lore.kernel.org/all/5a8b9f48-2c32-8177-1c18-e3bd7bfde558@intel.com/
> > 
> > and so will need the PR merged first.
> > 
> > I have a followup series that needs this.
> > 
> > This is also part of the iommufd work - moving the driver facing interface
> > to vfio_device provides a much cleaner path to integrate with iommufd.
> > 
> > v3:
> >  - Based on VFIO's gvt/iommu merge
> >  - Remove mention of mdev_legacy_get_vfio_device() from commit message
> >  - Clarify commit message for vfio_dma_rw() conversion
> >  - Talk about the open_count change in the commit message
> >  - No code change
> > v2: https://lore.kernel.org/r/0-v2-6011bde8e0a1+5f-vfio_mdev_no_group_jgg@nvidia.com
> >  - Based on Christoph's series so mdev_legacy_get_vfio_device() is removed
> >  - Reflow indenting
> >  - Use vfio_assert_device_open() and WARN_ON_ONCE instead of open coding
> >    the assertion
> > v1: https://lore.kernel.org/r/0-v1-a8faf768d202+125dd-vfio_mdev_no_group_jgg@nvidia.com  
> 
> Hi Alex,
> 
> This v3 is still good to go, it applies clean on top of the gvt series.

I wasn't cc'd on that version.  It looks to me like we'd still prefer
to see acks from GVT-g maintainers, Zhenyu and Zhi.

Also, I was thinking of posting the below cleanup patch unless you'd
prefer to roll it in.

Regarding your other outstanding patches, I think all of these depend
on the IOMMU changes, please correct if there are any that can be
queued with only the GVT-g topic branch dependency:

Subject: [PATCH v3 0/8] Remove vfio_group from the struct file facing VFIO API
Date: Wed,  4 May 2022 16:14:38 -0300
https://lore.kernel.org/all/0-v3-f7729924a7ea+25e33-vfio_kvm_no_group_jgg@nvidia.com/

Subject: [PATCH] vfio: Delete container_q
Date: Fri, 29 Apr 2022 15:46:17 -0300
https://lore.kernel.org/all/0-v1-a1e8791d795b+6b-vfio_container_q_jgg@nvidia.com/

And I'm waiting for a respin based on comments for:

Subject: [PATCH v3 0/2] Remove vfio_device_get_from_dev()
Date: Wed,  4 May 2022 16:01:46 -0300
https://lore.kernel.org/all/0-v3-4adf6c1b8e7c+170-vfio_get_from_dev_jgg@nvidia.com/

If there are others I should be tracking, please let me know.  Thanks,

Alex

commit e35ab17c48abcd8f6b40a35025d6d34a4d57f67a
Author: Alex Williamson <alex.williamson@redhat.com>
Date:   Wed May 4 17:01:51 2022 -0600

    vfio: Rename notifier function args
    
    We typically use "device" for a struct vfio_device* whereas "dev" is
    more likely a "struct device*".
    
    Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index b566ae3d320b..5de9a9892877 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -2104,7 +2104,7 @@ EXPORT_SYMBOL(vfio_set_irqs_validate_and_prepare);
 /*
  * Pin a set of guest PFNs and return their associated host PFNs for
local
  * domain only.
- * @dev [in]     : device
+ * @device [in]  : vfio device
  * @user_pfn [in]: array of user/guest PFNs to be pinned.
  * @npage [in]   : count of elements in user_pfn array.  This count
should not
  *		   be greater VFIO_PIN_PAGES_MAX_ENTRIES.
@@ -2112,15 +2112,16 @@
EXPORT_SYMBOL(vfio_set_irqs_validate_and_prepare);
  * @phys_pfn[out]: array of host PFNs
  * Return error or number of pages pinned.
  */
-int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
int npage,
-		   int prot, unsigned long *phys_pfn)
+int vfio_pin_pages(struct vfio_device *device, unsigned long *user_pfn,
+		   int npage, int prot, unsigned long *phys_pfn)
 {
 	struct vfio_container *container;
-	struct vfio_group *group = vdev->group;
+	struct vfio_group *group = device->group;
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	if (!user_pfn || !phys_pfn || !npage ||
!vfio_assert_device_open(vdev))
+	if (!user_pfn || !phys_pfn || !npage ||
+	    !vfio_assert_device_open(device))
 		return -EINVAL;
 
 	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
@@ -2144,27 +2145,27 @@ EXPORT_SYMBOL(vfio_pin_pages);
 
 /*
  * Unpin set of host PFNs for local domain only.
- * @dev [in]     : device
+ * @device [in]  : vfio device
  * @user_pfn [in]: array of user/guest PFNs to be unpinned. Number of
user/guest
  *		   PFNs should not be greater than
VFIO_PIN_PAGES_MAX_ENTRIES.
  * @npage [in]   : count of elements in user_pfn array.  This count
should not
  *                 be greater than VFIO_PIN_PAGES_MAX_ENTRIES.
  * Return error or number of pages unpinned.
  */
-int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
+int vfio_unpin_pages(struct vfio_device *device, unsigned long
*user_pfn, int npage)
 {
 	struct vfio_container *container;
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	if (!user_pfn || !npage || !vfio_assert_device_open(vdev))
+	if (!user_pfn || !npage || !vfio_assert_device_open(device))
 		return -EINVAL;
 
 	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
 		return -E2BIG;
 
-	container = vdev->group->container;
+	container = device->group->container;
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->unpin_pages))
 		ret = driver->ops->unpin_pages(container->iommu_data,
user_pfn, @@ -2186,24 +2187,24 @@ EXPORT_SYMBOL(vfio_unpin_pages);
  * As the read/write of user space memory is conducted via the CPUs
and is
  * not a real device DMA, it is not necessary to pin the user space
memory. *
- * @vdev [in]		: VFIO device
+ * @device [in]		: VFIO device
  * @user_iova [in]	: base IOVA of a user space buffer
  * @data [in]		: pointer to kernel buffer
  * @len [in]		: kernel buffer length
  * @write		: indicate read or write
  * Return error code on failure or 0 on success.
  */
-int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova, void
*data, +int vfio_dma_rw(struct vfio_device *device, dma_addr_t
user_iova, void *data, size_t len, bool write)
 {
 	struct vfio_container *container;
 	struct vfio_iommu_driver *driver;
 	int ret = 0;
 
-	if (!data || len <= 0 || !vfio_assert_device_open(vdev))
+	if (!data || len <= 0 || !vfio_assert_device_open(device))
 		return -EINVAL;
 
-	container = vdev->group->container;
+	container = device->group->container;
 	driver = container->iommu_driver;
 
 	if (likely(driver && driver->ops->dma_rw))
@@ -2211,6 +2212,7 @@ int vfio_dma_rw(struct vfio_device *vdev,
dma_addr_t user_iova, void *data, user_iova, data, len, write);
 	else
 		ret = -ENOTTY;
+
 	return ret;
 }
 EXPORT_SYMBOL(vfio_dma_rw);
@@ -2287,13 +2289,15 @@ static int vfio_register_group_notifier(struct
vfio_group *group, return ret;
 }
 
-int vfio_register_notifier(struct vfio_device *dev, enum
vfio_notify_type type,
-			   unsigned long *events, struct
notifier_block *nb) +int vfio_register_notifier(struct vfio_device
*device,
+			   enum vfio_notify_type type, unsigned long
*events,
+			   struct notifier_block *nb)
 {
-	struct vfio_group *group = dev->group;
+	struct vfio_group *group = device->group;
 	int ret;
 
-	if (!nb || !events || (*events == 0) ||
!vfio_assert_device_open(dev))
+	if (!nb || !events || (*events == 0) ||
+	    !vfio_assert_device_open(device))
 		return -EINVAL;
 
 	switch (type) {
@@ -2310,14 +2314,14 @@ int vfio_register_notifier(struct vfio_device
*dev, enum vfio_notify_type type, }
 EXPORT_SYMBOL(vfio_register_notifier);
 
-int vfio_unregister_notifier(struct vfio_device *dev,
+int vfio_unregister_notifier(struct vfio_device *device,
 			     enum vfio_notify_type type,
 			     struct notifier_block *nb)
 {
-	struct vfio_group *group = dev->group;
+	struct vfio_group *group = device->group;
 	int ret;
 
-	if (!nb || !vfio_assert_device_open(dev))
+	if (!nb || !vfio_assert_device_open(device))
 		return -EINVAL;
 
 	switch (type) {
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 9a9981c26228..6195edd2edcd 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -148,11 +148,11 @@ extern long vfio_external_check_extension(struct
vfio_group *group, 
 #define VFIO_PIN_PAGES_MAX_ENTRIES	(PAGE_SIZE/sizeof(unsigned
long)) 
-extern int vfio_pin_pages(struct vfio_device *vdev, unsigned long
*user_pfn, +extern int vfio_pin_pages(struct vfio_device *device,
unsigned long *user_pfn, int npage, int prot, unsigned long *phys_pfn);
-extern int vfio_unpin_pages(struct vfio_device *vdev, unsigned long
*user_pfn, +extern int vfio_unpin_pages(struct vfio_device *device,
unsigned long *user_pfn, int npage);
-extern int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova,
+extern int vfio_dma_rw(struct vfio_device *device, dma_addr_t
user_iova, void *data, size_t len, bool write);
 
 /* each type has independent events */
@@ -167,11 +167,11 @@ enum vfio_notify_type {
 /* events for VFIO_GROUP_NOTIFY */
 #define VFIO_GROUP_NOTIFY_SET_KVM	BIT(0)
 
-extern int vfio_register_notifier(struct vfio_device *dev,
+extern int vfio_register_notifier(struct vfio_device *device,
 				  enum vfio_notify_type type,
 				  unsigned long *required_events,
 				  struct notifier_block *nb);
-extern int vfio_unregister_notifier(struct vfio_device *dev,
+extern int vfio_unregister_notifier(struct vfio_device *device,
 				    enum vfio_notify_type type,
 				    struct notifier_block *nb);
 


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* Re: [Intel-gfx] [PATCH v3 0/7] Make the rest of the VFIO driver interface use vfio_device
@ 2022-05-05 18:56     ` Alex Williamson
  0 siblings, 0 replies; 26+ messages in thread
From: Alex Williamson @ 2022-05-05 18:56 UTC (permalink / raw)
  To: Jason Gunthorpe
  Cc: Tony Krowiak, Jason J. Herne, Eric Farman, Liu, Yi L, kvm,
	intel-gfx, intel-gvt-dev, Christoph Hellwig

On Wed, 4 May 2022 14:49:26 -0300
Jason Gunthorpe <jgg@nvidia.com> wrote:

> On Mon, May 02, 2022 at 02:31:30PM -0300, Jason Gunthorpe wrote:
> > Prior series have transformed other parts of VFIO from working on struct
> > device or struct vfio_group into working directly on struct
> > vfio_device. Based on that work we now have vfio_device's readily
> > available in all the drivers.
> > 
> > Update the rest of the driver facing API to use vfio_device as an input.
> > 
> > The following are switched from struct device to struct vfio_device:
> >   vfio_register_notifier()
> >   vfio_unregister_notifier()
> >   vfio_pin_pages()
> >   vfio_unpin_pages()
> >   vfio_dma_rw()
> > 
> > The following group APIs are obsoleted and removed by just using struct
> > vfio_device with the above:
> >   vfio_group_pin_pages()
> >   vfio_group_unpin_pages()
> >   vfio_group_iommu_domain()
> >   vfio_group_get_external_user_from_dev()
> > 
> > To retain the performance of the new device APIs relative to their group
> > versions optimize how vfio_group_add_container_user() is used to avoid
> > calling it when the driver must already guarantee the device is open and
> > the container_users incrd.
> > 
> > The remaining exported VFIO group interfaces are only used by kvm, and are
> > addressed by a parallel series.
> > 
> > This series is based on Christoph's gvt rework here:
> > 
> >  https://lore.kernel.org/all/5a8b9f48-2c32-8177-1c18-e3bd7bfde558@intel.com/
> > 
> > and so will need the PR merged first.
> > 
> > I have a followup series that needs this.
> > 
> > This is also part of the iommufd work - moving the driver facing interface
> > to vfio_device provides a much cleaner path to integrate with iommufd.
> > 
> > v3:
> >  - Based on VFIO's gvt/iommu merge
> >  - Remove mention of mdev_legacy_get_vfio_device() from commit message
> >  - Clarify commit message for vfio_dma_rw() conversion
> >  - Talk about the open_count change in the commit message
> >  - No code change
> > v2: https://lore.kernel.org/r/0-v2-6011bde8e0a1+5f-vfio_mdev_no_group_jgg@nvidia.com
> >  - Based on Christoph's series so mdev_legacy_get_vfio_device() is removed
> >  - Reflow indenting
> >  - Use vfio_assert_device_open() and WARN_ON_ONCE instead of open coding
> >    the assertion
> > v1: https://lore.kernel.org/r/0-v1-a8faf768d202+125dd-vfio_mdev_no_group_jgg@nvidia.com  
> 
> Hi Alex,
> 
> This v3 is still good to go, it applies clean on top of the gvt series.

I wasn't cc'd on that version.  It looks to me like we'd still prefer
to see acks from GVT-g maintainers, Zhenyu and Zhi.

Also, I was thinking of posting the below cleanup patch unless you'd
prefer to roll it in.

Regarding your other outstanding patches, I think all of these depend
on the IOMMU changes, please correct if there are any that can be
queued with only the GVT-g topic branch dependency:

Subject: [PATCH v3 0/8] Remove vfio_group from the struct file facing VFIO API
Date: Wed,  4 May 2022 16:14:38 -0300
https://lore.kernel.org/all/0-v3-f7729924a7ea+25e33-vfio_kvm_no_group_jgg@nvidia.com/

Subject: [PATCH] vfio: Delete container_q
Date: Fri, 29 Apr 2022 15:46:17 -0300
https://lore.kernel.org/all/0-v1-a1e8791d795b+6b-vfio_container_q_jgg@nvidia.com/

And I'm waiting for a respin based on comments for:

Subject: [PATCH v3 0/2] Remove vfio_device_get_from_dev()
Date: Wed,  4 May 2022 16:01:46 -0300
https://lore.kernel.org/all/0-v3-4adf6c1b8e7c+170-vfio_get_from_dev_jgg@nvidia.com/

If there are others I should be tracking, please let me know.  Thanks,

Alex

commit e35ab17c48abcd8f6b40a35025d6d34a4d57f67a
Author: Alex Williamson <alex.williamson@redhat.com>
Date:   Wed May 4 17:01:51 2022 -0600

    vfio: Rename notifier function args
    
    We typically use "device" for a struct vfio_device* whereas "dev" is
    more likely a "struct device*".
    
    Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index b566ae3d320b..5de9a9892877 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -2104,7 +2104,7 @@ EXPORT_SYMBOL(vfio_set_irqs_validate_and_prepare);
 /*
  * Pin a set of guest PFNs and return their associated host PFNs for
local
  * domain only.
- * @dev [in]     : device
+ * @device [in]  : vfio device
  * @user_pfn [in]: array of user/guest PFNs to be pinned.
  * @npage [in]   : count of elements in user_pfn array.  This count
should not
  *		   be greater VFIO_PIN_PAGES_MAX_ENTRIES.
@@ -2112,15 +2112,16 @@
EXPORT_SYMBOL(vfio_set_irqs_validate_and_prepare);
  * @phys_pfn[out]: array of host PFNs
  * Return error or number of pages pinned.
  */
-int vfio_pin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
int npage,
-		   int prot, unsigned long *phys_pfn)
+int vfio_pin_pages(struct vfio_device *device, unsigned long *user_pfn,
+		   int npage, int prot, unsigned long *phys_pfn)
 {
 	struct vfio_container *container;
-	struct vfio_group *group = vdev->group;
+	struct vfio_group *group = device->group;
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	if (!user_pfn || !phys_pfn || !npage ||
!vfio_assert_device_open(vdev))
+	if (!user_pfn || !phys_pfn || !npage ||
+	    !vfio_assert_device_open(device))
 		return -EINVAL;
 
 	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
@@ -2144,27 +2145,27 @@ EXPORT_SYMBOL(vfio_pin_pages);
 
 /*
  * Unpin set of host PFNs for local domain only.
- * @dev [in]     : device
+ * @device [in]  : vfio device
  * @user_pfn [in]: array of user/guest PFNs to be unpinned. Number of
user/guest
  *		   PFNs should not be greater than
VFIO_PIN_PAGES_MAX_ENTRIES.
  * @npage [in]   : count of elements in user_pfn array.  This count
should not
  *                 be greater than VFIO_PIN_PAGES_MAX_ENTRIES.
  * Return error or number of pages unpinned.
  */
-int vfio_unpin_pages(struct vfio_device *vdev, unsigned long *user_pfn,
+int vfio_unpin_pages(struct vfio_device *device, unsigned long
*user_pfn, int npage)
 {
 	struct vfio_container *container;
 	struct vfio_iommu_driver *driver;
 	int ret;
 
-	if (!user_pfn || !npage || !vfio_assert_device_open(vdev))
+	if (!user_pfn || !npage || !vfio_assert_device_open(device))
 		return -EINVAL;
 
 	if (npage > VFIO_PIN_PAGES_MAX_ENTRIES)
 		return -E2BIG;
 
-	container = vdev->group->container;
+	container = device->group->container;
 	driver = container->iommu_driver;
 	if (likely(driver && driver->ops->unpin_pages))
 		ret = driver->ops->unpin_pages(container->iommu_data,
user_pfn, @@ -2186,24 +2187,24 @@ EXPORT_SYMBOL(vfio_unpin_pages);
  * As the read/write of user space memory is conducted via the CPUs
and is
  * not a real device DMA, it is not necessary to pin the user space
memory. *
- * @vdev [in]		: VFIO device
+ * @device [in]		: VFIO device
  * @user_iova [in]	: base IOVA of a user space buffer
  * @data [in]		: pointer to kernel buffer
  * @len [in]		: kernel buffer length
  * @write		: indicate read or write
  * Return error code on failure or 0 on success.
  */
-int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova, void
*data, +int vfio_dma_rw(struct vfio_device *device, dma_addr_t
user_iova, void *data, size_t len, bool write)
 {
 	struct vfio_container *container;
 	struct vfio_iommu_driver *driver;
 	int ret = 0;
 
-	if (!data || len <= 0 || !vfio_assert_device_open(vdev))
+	if (!data || len <= 0 || !vfio_assert_device_open(device))
 		return -EINVAL;
 
-	container = vdev->group->container;
+	container = device->group->container;
 	driver = container->iommu_driver;
 
 	if (likely(driver && driver->ops->dma_rw))
@@ -2211,6 +2212,7 @@ int vfio_dma_rw(struct vfio_device *vdev,
dma_addr_t user_iova, void *data, user_iova, data, len, write);
 	else
 		ret = -ENOTTY;
+
 	return ret;
 }
 EXPORT_SYMBOL(vfio_dma_rw);
@@ -2287,13 +2289,15 @@ static int vfio_register_group_notifier(struct
vfio_group *group, return ret;
 }
 
-int vfio_register_notifier(struct vfio_device *dev, enum
vfio_notify_type type,
-			   unsigned long *events, struct
notifier_block *nb) +int vfio_register_notifier(struct vfio_device
*device,
+			   enum vfio_notify_type type, unsigned long
*events,
+			   struct notifier_block *nb)
 {
-	struct vfio_group *group = dev->group;
+	struct vfio_group *group = device->group;
 	int ret;
 
-	if (!nb || !events || (*events == 0) ||
!vfio_assert_device_open(dev))
+	if (!nb || !events || (*events == 0) ||
+	    !vfio_assert_device_open(device))
 		return -EINVAL;
 
 	switch (type) {
@@ -2310,14 +2314,14 @@ int vfio_register_notifier(struct vfio_device
*dev, enum vfio_notify_type type, }
 EXPORT_SYMBOL(vfio_register_notifier);
 
-int vfio_unregister_notifier(struct vfio_device *dev,
+int vfio_unregister_notifier(struct vfio_device *device,
 			     enum vfio_notify_type type,
 			     struct notifier_block *nb)
 {
-	struct vfio_group *group = dev->group;
+	struct vfio_group *group = device->group;
 	int ret;
 
-	if (!nb || !vfio_assert_device_open(dev))
+	if (!nb || !vfio_assert_device_open(device))
 		return -EINVAL;
 
 	switch (type) {
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 9a9981c26228..6195edd2edcd 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -148,11 +148,11 @@ extern long vfio_external_check_extension(struct
vfio_group *group, 
 #define VFIO_PIN_PAGES_MAX_ENTRIES	(PAGE_SIZE/sizeof(unsigned
long)) 
-extern int vfio_pin_pages(struct vfio_device *vdev, unsigned long
*user_pfn, +extern int vfio_pin_pages(struct vfio_device *device,
unsigned long *user_pfn, int npage, int prot, unsigned long *phys_pfn);
-extern int vfio_unpin_pages(struct vfio_device *vdev, unsigned long
*user_pfn, +extern int vfio_unpin_pages(struct vfio_device *device,
unsigned long *user_pfn, int npage);
-extern int vfio_dma_rw(struct vfio_device *vdev, dma_addr_t user_iova,
+extern int vfio_dma_rw(struct vfio_device *device, dma_addr_t
user_iova, void *data, size_t len, bool write);
 
 /* each type has independent events */
@@ -167,11 +167,11 @@ enum vfio_notify_type {
 /* events for VFIO_GROUP_NOTIFY */
 #define VFIO_GROUP_NOTIFY_SET_KVM	BIT(0)
 
-extern int vfio_register_notifier(struct vfio_device *dev,
+extern int vfio_register_notifier(struct vfio_device *device,
 				  enum vfio_notify_type type,
 				  unsigned long *required_events,
 				  struct notifier_block *nb);
-extern int vfio_unregister_notifier(struct vfio_device *dev,
+extern int vfio_unregister_notifier(struct vfio_device *device,
 				    enum vfio_notify_type type,
 				    struct notifier_block *nb);
 


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* Re: [PATCH v3 0/7] Make the rest of the VFIO driver interface use vfio_device
  2022-05-05 18:56     ` [Intel-gfx] " Alex Williamson
@ 2022-05-05 19:44       ` Jason Gunthorpe
  -1 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-05 19:44 UTC (permalink / raw)
  To: Alex Williamson
  Cc: Tony Krowiak, Eric Farman, Christoph Hellwig, intel-gfx,
	intel-gvt-dev, Jason J. Herne, Tian, Kevin, kvm, Liu, Yi L,
	zhenyuw, zhi.a.wang

On Thu, May 05, 2022 at 12:56:14PM -0600, Alex Williamson wrote:

> I wasn't cc'd on that version.  It looks to me like we'd still prefer
> to see acks from GVT-g maintainers, Zhenyu and Zhi.

Somehow the entire To line got wiped out, still unclear why. Maybe
get_maintainers had a bad time. I'm watching for this now

> Also, I was thinking of posting the below cleanup patch unless you'd
> prefer to roll it in.

If it is the style, I will roll it in

> Regarding your other outstanding patches, I think all of these depend
> on the IOMMU changes, please correct if there are any that can be
> queued with only the GVT-g topic branch dependency:
> 
> Subject: [PATCH v3 0/8] Remove vfio_group from the struct file facing VFIO API
> Date: Wed,  4 May 2022 16:14:38 -0300
> https://lore.kernel.org/all/0-v3-f7729924a7ea+25e33-vfio_kvm_no_group_jgg@nvidia.com/

This one applies cleanly without the iommu series, I just confirmed it.
 
> Subject: [PATCH] vfio: Delete container_q
> Date: Fri, 29 Apr 2022 15:46:17 -0300
> https://lore.kernel.org/all/0-v1-a1e8791d795b+6b-vfio_container_q_jgg@nvidia.com/

This one needs the iommu series

> And I'm waiting for a respin based on comments for:
> 
> Subject: [PATCH v3 0/2] Remove vfio_device_get_from_dev()
> Date: Wed,  4 May 2022 16:01:46 -0300
> https://lore.kernel.org/all/0-v3-4adf6c1b8e7c+170-vfio_get_from_dev_jgg@nvidia.com/

I will do this in a few hours hopefully

> If there are others I should be tracking, please let me know.  Thanks,

Nothing more for your tree, but FYI:

The enforced coherent series is going through Joerg's tree
https://lore.kernel.org/linux-iommu/0-v3-2cf356649677+a32-intel_no_snoop_jgg@nvidia.com/

The bug fix for the iommu series is pending Joerg:
https://lore.kernel.org/linux-iommu/0-v2-f62259511ac0+6-iommu_dma_block_jgg@nvidia.com/

I've got one more series to post which just needs a last pass over
now, maybe today, but that is looking grim again.

It is alot of series, it is hard to keep all this organized, thanks.

Jason

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [Intel-gfx] [PATCH v3 0/7] Make the rest of the VFIO driver interface use vfio_device
@ 2022-05-05 19:44       ` Jason Gunthorpe
  0 siblings, 0 replies; 26+ messages in thread
From: Jason Gunthorpe @ 2022-05-05 19:44 UTC (permalink / raw)
  To: Alex Williamson
  Cc: Tony Krowiak, Jason J. Herne, Eric Farman, Liu, Yi L, kvm,
	intel-gfx, intel-gvt-dev, Christoph Hellwig

On Thu, May 05, 2022 at 12:56:14PM -0600, Alex Williamson wrote:

> I wasn't cc'd on that version.  It looks to me like we'd still prefer
> to see acks from GVT-g maintainers, Zhenyu and Zhi.

Somehow the entire To line got wiped out, still unclear why. Maybe
get_maintainers had a bad time. I'm watching for this now

> Also, I was thinking of posting the below cleanup patch unless you'd
> prefer to roll it in.

If it is the style, I will roll it in

> Regarding your other outstanding patches, I think all of these depend
> on the IOMMU changes, please correct if there are any that can be
> queued with only the GVT-g topic branch dependency:
> 
> Subject: [PATCH v3 0/8] Remove vfio_group from the struct file facing VFIO API
> Date: Wed,  4 May 2022 16:14:38 -0300
> https://lore.kernel.org/all/0-v3-f7729924a7ea+25e33-vfio_kvm_no_group_jgg@nvidia.com/

This one applies cleanly without the iommu series, I just confirmed it.
 
> Subject: [PATCH] vfio: Delete container_q
> Date: Fri, 29 Apr 2022 15:46:17 -0300
> https://lore.kernel.org/all/0-v1-a1e8791d795b+6b-vfio_container_q_jgg@nvidia.com/

This one needs the iommu series

> And I'm waiting for a respin based on comments for:
> 
> Subject: [PATCH v3 0/2] Remove vfio_device_get_from_dev()
> Date: Wed,  4 May 2022 16:01:46 -0300
> https://lore.kernel.org/all/0-v3-4adf6c1b8e7c+170-vfio_get_from_dev_jgg@nvidia.com/

I will do this in a few hours hopefully

> If there are others I should be tracking, please let me know.  Thanks,

Nothing more for your tree, but FYI:

The enforced coherent series is going through Joerg's tree
https://lore.kernel.org/linux-iommu/0-v3-2cf356649677+a32-intel_no_snoop_jgg@nvidia.com/

The bug fix for the iommu series is pending Joerg:
https://lore.kernel.org/linux-iommu/0-v2-f62259511ac0+6-iommu_dma_block_jgg@nvidia.com/

I've got one more series to post which just needs a last pass over
now, maybe today, but that is looking grim again.

It is alot of series, it is hard to keep all this organized, thanks.

Jason

^ permalink raw reply	[flat|nested] 26+ messages in thread

end of thread, other threads:[~2022-05-05 19:45 UTC | newest]

Thread overview: 26+ messages (download: mbox.gz / follow: Atom feed)
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2022-05-02 17:31 [PATCH v3 0/7] Make the rest of the VFIO driver interface use vfio_device Jason Gunthorpe
2022-05-02 17:31 ` [Intel-gfx] " Jason Gunthorpe
2022-05-02 17:31 ` [PATCH v3 1/7] vfio: Make vfio_(un)register_notifier accept a vfio_device Jason Gunthorpe
2022-05-02 17:31   ` [Intel-gfx] " Jason Gunthorpe
2022-05-02 17:31 ` [PATCH v3 2/7] vfio/ccw: Remove mdev from struct channel_program Jason Gunthorpe
2022-05-02 17:31   ` [Intel-gfx] " Jason Gunthorpe
2022-05-02 17:31 ` [PATCH v3 3/7] vfio/mdev: Pass in a struct vfio_device * to vfio_pin/unpin_pages() Jason Gunthorpe
2022-05-02 17:31   ` [Intel-gfx] " Jason Gunthorpe
2022-05-02 17:31 ` [PATCH v3 4/7] vfio/mdev: Pass in a struct vfio_device * to vfio_dma_rw() Jason Gunthorpe
2022-05-02 17:31   ` [Intel-gfx] " Jason Gunthorpe
2022-05-02 17:31 ` [PATCH v3 5/7] drm/i915/gvt: Change from vfio_group_(un)pin_pages to vfio_(un)pin_pages Jason Gunthorpe
2022-05-02 17:31   ` [Intel-gfx] " Jason Gunthorpe
2022-05-02 17:31 ` [PATCH v3 6/7] vfio: Remove dead code Jason Gunthorpe
2022-05-02 17:31   ` [Intel-gfx] " Jason Gunthorpe
2022-05-02 17:31 ` [PATCH v3 7/7] vfio: Remove calls to vfio_group_add_container_user() Jason Gunthorpe
2022-05-02 17:31   ` [Intel-gfx] " Jason Gunthorpe
2022-05-02 18:01 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Make the rest of the VFIO driver interface use vfio_device (rev4) Patchwork
2022-05-02 18:01 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2022-05-02 18:25 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2022-05-03  1:27 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork
2022-05-04 17:49 ` [Intel-gfx] [PATCH v3 0/7] Make the rest of the VFIO driver interface use vfio_device Jason Gunthorpe
2022-05-04 17:49   ` Jason Gunthorpe
2022-05-05 18:56   ` Alex Williamson
2022-05-05 18:56     ` [Intel-gfx] " Alex Williamson
2022-05-05 19:44     ` Jason Gunthorpe
2022-05-05 19:44       ` [Intel-gfx] " Jason Gunthorpe

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