kernel/linux.git/drivers/gpu/drm/virtio/virtgpu_plane.c, branch v5.9.12

drm/virtio: drop virtio_gpu_output->enabled

2020-09-04T11:11:32+00:00

Not needed, already tracked by drm_crtc_state->active. Signed-off-by: Gerd Hoffmann Acked-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20200818072511.6745-3-kraxel@redhat.com (cherry picked from commit 1174c8a0f33c1e5c442ac40381fe124248c08b3a)

drm/virtio: fix unblank

2020-09-02T06:12:45+00:00

When going through a disable/enable cycle without changing the framebuffer the optimization added by commit 3954ff10e06e ("drm/virtio: skip set_scanout if framebuffer didn't change") causes the screen stay blank. Add a bool to force an update to fix that. v2: use drm_atomic_crtc_needs_modeset() (Daniel). Cc: 1882851@bugs.launchpad.net Fixes: 3954ff10e06e ("drm/virtio: skip set_scanout if framebuffer didn't change") Signed-off-by: Gerd Hoffmann Tested-by: Jiri Slaby Tested-by: Diego Viola Acked-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20200818072511.6745-2-kraxel@redhat.com (cherry picked from commit 1bc371cd0ec907bab870cacb6e898105f9c41dc8)

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: rework notification for better batching

2020-02-17T13:50:48+00:00

Drop the virtio_gpu_{disable,enable}_notify(). Add a new virtio_gpu_notify() call instead, which must be called whenever the driver wants make sure the host is notified needed. Drop automatic notification from command submission. Add virtio_gpu_notify() calls after each command query instead. This allows more fine-grained control over host notification and can move around the notify calls in subsequent patches to batch command submissions. With this in place it is also possible to make notification optional for userspace ioctls. Page flip batching goes away (temporarely). v3: - move batching to separate patches. v2: - rebase to latest drm-misc-next. - use "if (!atomic_read())". - add review & test tags. Signed-off-by: Gerd Hoffmann Reviewed-by: Gurchetan Singh Tested-by: Gurchetan Singh Reviewed-by: Chia-I Wu Link: http://patchwork.freedesktop.org/patch/msgid/20200214125535.26349-2-kraxel@redhat.com

drm/virtio: fix virtio_gpu_cursor_plane_update().

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

Add missing virtio_gpu_array_lock_resv() call. Signed-off-by: Gerd Hoffmann Reviewed-by: Chia-I Wu Link: http://patchwork.freedesktop.org/patch/msgid/20200211135047.22261-3-kraxel@redhat.com

drm/virtio: use damage info for display updates.

2019-12-16T11:39:50+00:00

v2: remove shift by src_{x,y}, drm_atomic_helper_damage_merged() handles that for us (Chia-I Wu). Signed-off-by: Gerd Hoffmann Reviewed-by: Chia-I Wu Link: http://patchwork.freedesktop.org/patch/msgid/20191212125346.8334-4-kraxel@redhat.com

drm/virtio: batch display update commands.

2019-12-16T11:39:50+00:00

When the driver submits multiple commands in a row it makes sense to notify the host only after submitting the last one, so the host can process them all at once, with a single vmexit. Add functions to enable/disable notifications to allow that. Use the new functions for primary plane updates. Signed-off-by: Gerd Hoffmann Reviewed-by: Chia-I Wu Link: http://patchwork.freedesktop.org/patch/msgid/20191212125346.8334-3-kraxel@redhat.com

drm/virtio: skip set_scanout if framebuffer didn't change

2019-12-16T11:39:50+00:00

v2: also check src rect (Chia-I Wu). Signed-off-by: Gerd Hoffmann Reviewed-by: Chia-I Wu Link: http://patchwork.freedesktop.org/patch/msgid/20191212125346.8334-2-kraxel@redhat.com

drm/virtio: plane_state->fb iff plane_state->crtc

2019-12-16T11:39:50+00:00

Checking both is one too much, so wrap a WARN_ON around it to stope the copypasta. Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20191213172612.1514842-8-daniel.vetter@ffwll.ch Cc: David Airlie Cc: Gerd Hoffmann Cc: virtualization@lists.linux-foundation.org Signed-off-by: Gerd Hoffmann

drm/virtio: factor out virtio_gpu_update_dumb_bo

2019-11-20T08:22:27+00:00

No functional change. Signed-off-by: Gerd Hoffmann Reviewed-by: Gurchetan Singh Link: http://patchwork.freedesktop.org/patch/msgid/20191023062539.11728-4-kraxel@redhat.com