linux-stable.git/drivers/gpu/drm/virtio/virtgpu_ioctl.c, branch v5.7

Merge tag 'drm-misc-fixes-2020-05-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

2020-05-08T05:04:25+00:00

A few minor fixes for an ordering issue in virtio, an (old) gcc warning
in sun4i, a probe issue in ingenic-drm and a regression in the HDCP
support.

Signed-off-by: Dave Airlie 

From: Maxime Ripard 
Link: https://patchwork.freedesktop.org/patch/msgid/20200507160130.id64niqgf5wsha4u@gilmour.lan

drm/virtio: create context before RESOURCE_CREATE_2D in 3D mode

2020-05-04T07:53:37+00:00

If 3D is enabled, but userspace requests a dumb buffer, we will
call CTX_ATTACH_RESOURCE before actually creating the context.

Fixes: 72b48ae800da ("drm/virtio: enqueue virtio_gpu_create_context after the first 3D ioctl")
Signed-off-by: Gurchetan Singh 
Link: http://patchwork.freedesktop.org/patch/msgid/20200501185557.740-1-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann

virtgpu: pull in uaccess.h

2020-04-17T10:05:29+00:00

In preparation to virtio header changes, include uaccess.h directly as
this file is using copy to/from user.

Signed-off-by: Michael S. Tsirkin

drm/virtio: enqueue virtio_gpu_create_context after the first 3D ioctl

2020-02-25T08:48:42+00:00

For old userspace, initialization will still be implicit.

For backwards compatibility, enqueue virtio_gpu_cmd_context_create after
the first 3D ioctl.

v3: staticify virtio_gpu_create_context
    remove notify to batch vm-exit
v6: Remove nested 3D checks (emil.velikov):
      - unify 3D check in resource create
v7: Remove check when getting capabilities

Reviewed-by: Chia-I Wu 
Reviewed-by: Emil Velikov 
Signed-off-by: Gurchetan Singh 
Link: http://patchwork.freedesktop.org/patch/msgid/20200225000800.2966-4-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann

drm/virtio: track whether or not a context has been initiated

2020-02-25T08:48:42+00:00

Use an boolean variable to track whether a context has been
initiated.

v5: Fix possible race and sleep via mutex (olv)

Reviewed-by: Chia-I Wu 
Reviewed-by: Emil Velikov 
Signed-off-by: Gurchetan Singh 
Link: http://patchwork.freedesktop.org/patch/msgid/20200225000800.2966-3-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann

drm/virtio: factor out context create hypercall

2020-02-25T08:48:41+00:00

We currently create an OpenGL context when opening the DRM fd
if 3D is available.

We may need other context types (VK,..) in the future, and the plan
is to have explicit initialization for that.

For explicit initialization to work, we need to factor out
virtio_gpu_create_context from driver initialization.

v2: Move context handle initialization too (olv)
v6: Remove redundant 3D check (emil.velikov)

Reviewed-by: Chia-I Wu 
Reviewed-by: Emil Velikov 
Signed-off-by: Gurchetan Singh 
Link: http://patchwork.freedesktop.org/patch/msgid/20200225000800.2966-2-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann

drm/virtio: use consistent names for drm_files

2020-02-25T08:48:41+00:00

Minor cleanup, change:

- file_priv--> file,
- drm_file --> file.

Reviewed-by: Chia-I Wu 
Reviewed-by: Emil Velikov 
Signed-off-by: Gurchetan Singh 
Link: http://patchwork.freedesktop.org/patch/msgid/20200225000800.2966-1-gurchetansingh@chromium.org
Signed-off-by: Gerd Hoffmann

drm/virtio: move remaining virtio_gpu_notify calls

2020-02-17T13:50:50+00:00

Move all remaining virtio_gpu_notify() calls from virtio_gpu_cmd_*
to the callers, for consistency reasons.

Signed-off-by: Gerd Hoffmann 
Reviewed-by: Chia-I Wu 
Reviewed-by: Gurchetan Singh 
Link: http://patchwork.freedesktop.org/patch/msgid/20200214125535.26349-7-kraxel@redhat.com

drm/virtio: batch plane updates (pageflip)

2020-02-17T13:50:49+00:00

Move virtio_gpu_notify() to higher-level functions for
virtio_gpu_cmd_resource_flush(), virtio_gpu_cmd_set_scanout() and
virtio_gpu_cmd_transfer_to_host_{2d,3d}().

virtio_gpu_primary_plane_update() will notify only once for a series
of commands (restores plane update command batching).

Signed-off-by: Gerd Hoffmann 
Reviewed-by: Chia-I Wu 
Reviewed-by: Gurchetan Singh 
Link: http://patchwork.freedesktop.org/patch/msgid/20200214125535.26349-4-kraxel@redhat.com

drm/virtio: fix virtio_gpu_execbuffer_ioctl locking

2020-02-13T10:11:59+00:00

Lockdep says we can't call vmemdup() while having objects reserved
because it needs the mmap semaphore.  So reorder the calls reserve
the objects later.

Signed-off-by: Gerd Hoffmann 
Reviewed-by: Chia-I Wu 
Link: http://patchwork.freedesktop.org/patch/msgid/20200211135047.22261-2-kraxel@redhat.com