linux.git/drivers/gpu/drm/drm_plane.c, branch v5.17

drm: Fix typo in comments

2021-08-02T08:19:43+00:00

fix typo for drm

v1->v2:
respin with the change "iff ==> implies that"

Signed-off-by: Cai Huoqing 
Signed-off-by: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20210730132729.376-1-caihuoqing@baidu.com

drm/plane: Move drm_plane_enable_fb_damage_clips into core

2021-07-27T10:21:22+00:00

We're trying to have a fairly strict split between core functionality
that defines the uapi, including the docs, and the helper functions to
implement it.

Move drm_plane_enable_fb_damage_clips and associated kerneldoc into
drm_plane from drm_damage_helper.c to fix this.

Reviewed-by: José Roberto de Souza 
Cc: Ville Syrjälä 
Cc: Gwan-gyeong Mun 
Cc: José Roberto de Souza 
Cc: Hans de Goede 
Signed-off-by: Daniel Vetter 
Cc: Maarten Lankhorst 
Cc: Maxime Ripard 
Cc: Thomas Zimmermann 
Cc: David Airlie 
Cc: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20210723083457.696939-3-daniel.vetter@ffwll.ch

drm/plane: check that fb_damage is set up when used

2021-07-27T10:21:22+00:00

There's two stages of manual upload/invalidate displays:
- just handling dirtyfb and uploading the entire fb all the time
- looking at damage clips

In the latter case we support it through fbdev emulation (with
fb_defio), atomic property, and with the dirtfy clip rects.

Make sure at least the atomic property is set up as the main official
interface for this. Ideally we'd also check that
drm_atomic_helper_dirtyfb() is used and that fbdev defio is set up,
but that's quite a bit harder to do. Ideas very much welcome.

From a cursor audit drivers seem to be getting this right mostly, but
better to make sure. At least no one is bypassing the accessor
function.

v2:
- use drm_warn_once with a meaningful warning string (José)
- don't splat in the atomic check code for everyone (intel-gfx-ci)

Reviewed-by: José Roberto de Souza  (v1)
Cc: Ville Syrjälä 
Cc: Gwan-gyeong Mun 
Cc: José Roberto de Souza 
Cc: Hans de Goede 
Signed-off-by: Daniel Vetter 
Cc: Maarten Lankhorst 
Cc: Maxime Ripard 
Cc: Thomas Zimmermann 
Cc: David Airlie 
Cc: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20210723083457.696939-2-daniel.vetter@ffwll.ch

drm/modifiers: Enforce consistency between the cap an IN_FORMATS

2021-05-12T09:31:29+00:00

It's very confusing for userspace to have to deal with inconsistencies
here, and some drivers screwed this up a bit. Most just ommitted the
format list when they meant to say that only linear modifier is
allowed, but some also meant that only implied modifiers are
acceptable (because actually none of the planes registered supported
modifiers).

Now that this is all done consistently across all drivers, document
the rules and enforce it in the drm core.

v2:
- Make the capability a link (Simon)
- Note that all is lost before 5.1.

v3:
- Use drm_WARN_ON (Lyude)

Acked-by: Pekka Paalanen 
Reviewed-by: Emil Velikov 
Reviewed-by: Lyude Paul 
Acked-by: Maxime Ripard 
Cc: Simon Ser 
Reviewed-by: Lucas Stach 
Cc: Pekka Paalanen 
Signed-off-by: Daniel Vetter 
Cc: Maarten Lankhorst 
Cc: Maxime Ripard 
Cc: Thomas Zimmermann 
Cc: David Airlie 
Cc: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20210506132343.2873699-1-daniel.vetter@ffwll.ch

Merge tag 'drm-misc-next-2021-03-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2021-03-16T07:08:46+00:00

drm-misc-next for 5.13:

UAPI Changes:

Cross-subsystem Changes:

Core Changes:
  - %p4cc printk format modifier
  - atomic: introduce drm_crtc_commit_wait, rework atomic plane state
    helpers to take the drm_commit_state structure
  - dma-buf: heaps rework to return a struct dma_buf
  - simple-kms: Add plate state helpers
  - ttm: debugfs support, removal of sysfs

Driver Changes:
  - Convert drivers to shadow plane helpers
  - arc: Move to drm/tiny
  - ast: cursor plane reworks
  - gma500: Remove TTM and medfield support
  - mxsfb: imx8mm support
  - panfrost: MMU IRQ handling rework
  - qxl: rework to better handle resources deallocation, locking
  - sun4i: Add alpha properties for UI and VI layers
  - vc4: RPi4 CEC support
  - vmwgfx: doc cleanup

Signed-off-by: Dave Airlie 

From: Maxime Ripard 
Link: https://patchwork.freedesktop.org/patch/msgid/20210303100600.dgnkadonzuvfnu22@gilmour

drm: Switch to %p4cc format modifier

2021-02-17T11:52:59+00:00

Switch DRM drivers from drm_get_format_name() to %p4cc. This gets rid of a
large number of temporary variables at the same time.

Signed-off-by: Sakari Ailus 
Reviewed-by: Petr Mladek 
Reviewed-by: Andy Shevchenko 
Acked-by: Thomas Zimmermann 
Signed-off-by: Thomas Zimmermann 
Link: https://patchwork.freedesktop.org/patch/msgid/20210216155723.17109-4-sakari.ailus@linux.intel.com

Merge tag 'v5.11-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next

2021-01-25T04:35:44+00:00

Backmerge v5.11-rc5 into drm-next to clean up a bunch of conflicts we are dragging around.

Signed-off-by: Dave Airlie

drm/doc: document the type plane property

2021-01-24T09:37:50+00:00

Add a new entry for "type" in the section for standard plane properties.

v3: improve paragraph about mixing legacy IOCTLs with explicit usage,
note that a driver may support cursors without cursor planes (Daniel)

v4: fixing rebase gone wrong

v5:
- Fix typo (Daniel)
- Mention CAP_ATOMIC instead of CAP_UNIVERSAL_PLANES when referring to
  atomic test-only commits (Daniel)
- Add newlines at end of sections (Daniel)

Signed-off-by: Simon Ser 
Reviewed-by: Daniel Vetter 
Reviewed-by: Pekka Paalanen 
Link: https://patchwork.freedesktop.org/patch/msgid/20210115110626.12233-2-contact@emersion.fr

drm: Check actual format for legacy pageflip.

2021-01-11T21:20:15+00:00

With modifiers one can actually have different format_info structs
for the same format, which now matters for AMDGPU since we convert
implicit modifiers to explicit modifiers with multiple planes.

I checked other drivers and it doesn't look like they end up triggering
this case so I think this is safe to relax.

Signed-off-by: Bas Nieuwenhuizen 
Reviewed-by: Daniel Vetter 
Reviewed-by: Zhan Liu 
Acked-by: Christian König 
Acked-by: Alex Deucher 
Fixes: 816853f9dc40 ("drm/amd/display: Set new format info for converted metadata.")
Signed-off-by: Alex Deucher 
Link: https://patchwork.freedesktop.org/patch/msgid/20210110021142.28221-1-bas@basnieuwenhuizen.nl

Merge tag 'drm-misc-next-2021-01-06' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2021-01-07T12:40:20+00:00

drm-misc-next for v5.12:

Core Changes:
- Lots of drm documentation updates by Simor Ser.
- Require that each crtc has a unique primary plane.
- Add fixme that fbdev_generic_setup is confusing.

Driver Changes:
- Update addresses for TI display drivers maintainers.
- Make DRM_VIRTIO_GPU select VIRTIO.
- Small fixes to qxl, virtio, hisilicon, tve200, panel/s6e63m0.

Signed-off-by: Daniel Vetter 
From: Maarten Lankhorst 
Link: https://patchwork.freedesktop.org/patch/msgid/fdfbfd7a-b91d-3f59-11c8-984704ce0ee1@linux.intel.com