linux-stable.git/drivers/gpu/drm/virtio/virtgpu_kms.c, branch linux-5.0.y

drm/virtio: add edid support

2018-11-21T11:06:59+00:00

linux guest driver implementation of the VIRTIO_GPU_F_EDID feature.

Signed-off-by: Gerd Hoffmann 
Acked-by: Daniel Vetter 
Link: http://patchwork.freedesktop.org/patch/msgid/20181030063206.19528-3-kraxel@redhat.com

drm/virtio: fix memory leak of vfpriv on error return path

2018-11-14T13:21:03+00:00

The allocation for vfpriv is being leaked on an error return path,
fix this by kfree'ing it before returning.

Detected by CoverityScan, CID#1475380 ("Resource Leak")

Fixes: 6a37c49a94a9 ("drm/virtio: Handle context ID allocation errors")
Signed-off-by: Colin Ian King 
Link: http://patchwork.freedesktop.org/patch/msgid/20181107203122.6861-1-colin.king@canonical.com
Signed-off-by: Gerd Hoffmann

drm/virtio: Use IDAs more efficiently

2018-11-14T11:50:34+00:00

0-based IDAs are more efficient than any other base.  Convert the
1-based IDAs to be 0-based.

Signed-off-by: Matthew Wilcox 
Link: http://patchwork.freedesktop.org/patch/msgid/20181030165352.13065-2-willy@infradead.org
Signed-off-by: Gerd Hoffmann

drm/virtio: Handle context ID allocation errors

2018-10-29T21:50:55+00:00

It is possible to run out of memory while allocating IDs.  The current
code would create a context with an invalid ID; change it to return
-ENOMEM to userspace.

Signed-off-by: Matthew Wilcox 
Link: http://patchwork.freedesktop.org/patch/msgid/20180926160031.15721-3-willy@infradead.org
Signed-off-by: Gerd Hoffmann

drm/virtio: Replace IDRs with IDAs

2018-10-29T21:50:55+00:00

These IDRs were only being used to allocate unique numbers, not to look
up pointers, so they can use the more space-efficient IDA instead.

Signed-off-by: Matthew Wilcox 
Link: http://patchwork.freedesktop.org/patch/msgid/20180926160031.15721-2-willy@infradead.org

[ kraxel: resolve conflict ]

Signed-off-by: Gerd Hoffmann

virtgpu: remove redundant task_comm copying

2017-11-10T11:45:35+00:00

Remove redundant task name copying because:

1. task->comm is already NUL-terminated
2. virtio_gpu_context_create() trims passed dbgname anyway

Signed-off-by: Michał Mirosław 
Link: http://patchwork.freedesktop.org/patch/msgid/588612bbc672e8b598e10f79fcbc041122e844ba.1504202471.git.mirq-linux@rere.qmqm.pl
Signed-off-by: Gerd Hoffmann

drm: Remove drm_device->virtdev

2017-05-29T18:57:25+00:00

This is a leftover from the drm_bus days, where we've had a
bus-specific device type for every bus type in drm_device. Except for
pci (which we can't remove because dri1 drivers) this is all gone. And
the virt driver also doesn't really need it, dev_to_virtio works
perfectly fine.

Cc: David Airlie 
Cc: Gerd Hoffmann 
Cc: virtualization@lists.linux-foundation.org
Reviewed-by: Gerd Hoffmann 
Signed-off-by: Daniel Vetter 
Link: http://patchwork.freedesktop.org/patch/msgid/20170524145212.27837-3-daniel.vetter@ffwll.ch

virtio: wrap find_vqs

2017-05-02T20:41:42+00:00

We are going to add more parameters to find_vqs, let's wrap the call so
we don't need to tweak all drivers every time.

Signed-off-by: Michael S. Tsirkin

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

2017-03-02T21:53:13+00:00

Pull vhost updates from Michael Tsirkin:
 "virtio, vhost: optimizations, fixes

  Looks like a quiet cycle for vhost/virtio, just a couple of minor
  tweaks. Most notable is automatic interrupt affinity for blk and scsi.
  Hopefully other devices are not far behind"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio-console: avoid DMA from stack
  vhost: introduce O(1) vq metadata cache
  virtio_scsi: use virtio IRQ affinity
  virtio_blk: use virtio IRQ affinity
  blk-mq: provide a default queue mapping for virtio device
  virtio: provide a method to get the IRQ affinity mask for a virtqueue
  virtio: allow drivers to request IRQ affinity when creating VQs
  virtio_pci: simplify MSI-X setup
  virtio_pci: don't duplicate the msix_enable flag in struct pci_dev
  virtio_pci: use shared interrupts for virtqueues
  virtio_pci: remove struct virtio_pci_vq_info
  vhost: try avoiding avail index access when getting descriptor
  virtio_mmio: expose header to userspace

virtio: allow drivers to request IRQ affinity when creating VQs

2017-02-27T18:54:04+00:00

Add a struct irq_affinity pointer to the find_vqs methods, which if set
is used to tell the PCI layer to create the MSI-X vectors for our I/O
virtqueues with the proper affinity from the start.  Compared to after
the fact affinity hints this gives us an instantly working setup and
allows to allocate the irq descritors node-local and avoid interconnect
traffic.  Last but not least this will allow blk-mq queues are created
based on the interrupt affinity for storage drivers.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jason Wang 
Signed-off-by: Michael S. Tsirkin