linux-stable.git/drivers/gpu/drm/ast, branch v6.15

drm/ast: cursor: Move implementation to separate source file

2025-02-20T07:38:34+00:00

Move the cursor code into a separate source file for readability. No
functional changes.

v2:
- include 

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20250217122336.230067-5-tzimmermann@suse.de

drm/ast: cursor: Add support for ARGB4444

2025-02-20T07:38:34+00:00

Add support for cursor image data in ARGB4444 format. This is the
hardware's native format and requires no conversion.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20250217122336.230067-4-tzimmermann@suse.de

drm/ast: cursor: Move format conversion to shared helper

2025-02-20T07:38:33+00:00

User-space cursor-image data is encoded in ARBG8888, while hardware
supports ARGB4444. Implement the format conversion as part of the
format-helper framework, so that other drivers can benefit.

This allows to respect the damage area of the cursor update. In
previous code, all cursor image data had to be converted on each
update. Now, only the changed areas require an update. The hardware
image is always updated completely, as it is required for the
checksum update.

The format-conversion helper still contains the old implementation's
optimization of writing 2 output pixels at the same time.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20250217122336.230067-3-tzimmermann@suse.de

drm/ast: cursor: Calculate checksum in helper

2025-02-20T07:38:32+00:00

Setting the cursor image requires a 32-bit checksum of the cursor
image data. The current cursor code converts the image to ARGB4444
format and computes the checksum in a single step. Moving the
checksum calculation into a separate helper will allow to move the
format conversion into a shared helper.

v2:
- don't loop for checksum'ing final pixel (Jocelyn)
- fix typo in commit message (Jocelyn)

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20250217122336.230067-2-tzimmermann@suse.de

Merge tag 'drm-misc-next-2025-02-12' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

2025-02-14T00:24:02+00:00

drm-misc-next for v6.15:

UAPI Changes:

fourcc:
- Add modifiers for MediaTek tiled formats

Cross-subsystem Changes:

bus:
- mhi: Enable image transfer via BHIe in PBL

dma-buf:
- Add fast-path for single-fence merging

Core Changes:

atomic helper:
- Allow full modeset on connector changes
- Clarify semantics of allow_modeset
- Clarify semantics of drm_atomic_helper_check()

buddy allocator:
- Fix multi-root cleanup

ci:
- Update IGT

display:
- dp: Support Extendeds Wake Timeout
- dp_mst: Fix RAD-to-string conversion

panic:
- Encode QR code according to Fido 2.2

probe helper:
- Cleanups

scheduler:
- Cleanups

ttm:
- Refactor pool-allocation code
- Cleanups

Driver Changes:

amdxdma:
- Fix error handling
- Cleanups

ast:
- Refactor detection of transmitter chips
- Refactor support of VBIOS display-mode handling
- astdp: Fix connection status; Filter unsupported display modes

bridge:
- adv7511: Report correct capabilities
- it6505: Fix HDCP V compare
- sn65dsi86: Fix device IDs
- Cleanups

i915:
- Enable Extendeds Wake Timeout

imagination:
- Check job dependencies with DRM-sched helper

ivpu:
- Improve command-queue handling
- Use workqueue for IRQ handling
- Add suport for HW fault injection
- Locking fixes
- Cleanups

mgag200:
- Add support for G200eH5 chips

msm:
- dpu: Add concurrent writeback support for DPU 10.x+

nouveau:
- Move drm_slave_encoder interface into driver
- nvkm: Refactor GSP RPC

omapdrm:
- Cleanups

panel:
- Convert several panels to multi-style functions to improve error
  handling
- edp: Add support for B140UAN04.4, BOE NV140FHM-NZ, CSW MNB601LS1-3,
  LG LP079QX1-SP0V, MNE007QS3-7, STA 116QHD024002, Starry 116KHD024006,
  Lenovo T14s Gen6 Snapdragon
- himax-hx83102: Add support for CSOT PNA957QT1-1, Kingdisplay
  kd110n11-51ie, Starry 2082109qfh040022-50e

panthor:
- Expose sizes of intenral BOs via fdinfo
- Fix race between reset and suspend
- Cleanups

qaic:
- Add support for AIC200
- Cleanups

renesas:
- Fix limits in DT bindings

rockchip:
- rk3576: Add HDMI support
- vop2: Add new display modes on RK3588 HDMI0 up to 4K
- Don't change HDMI reference clock rate
- Fix DT bindings

solomon:
- Set SPI device table to silence warnings
- Fix pixel and scanline encoding

v3d:
- Cleanups

vc4:
- Use drm_exec
- Use dma-resv for wait-BO ioctl
- Remove seqno infrastructure

virtgpu:
- Support partial mappings of GEM objects
- Reserve VGA resources during initialization
- Fix UAF in virtgpu_dma_buf_free_obj()
- Add panic support

vkms:
- Switch to a managed modesetting pipeline
- Add support for ARGB8888

xlnx:
- Set correct DMA segment size
- Fix error handling
- Fix docs

Signed-off-by: Dave Airlie 

From: Thomas Zimmermann 
Link: https://patchwork.freedesktop.org/patch/msgid/20250212090625.GA24865@linux.fritz.box

drm/ast: astdp: Validate display modes

2025-02-11T07:29:54+00:00

Validate each display mode against the astdp transmitter chips. Filters
out modes that the chip does not support.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20250204133209.403327-5-tzimmermann@suse.de

drm/ast: astdp: Store mode index in connector state

2025-02-11T07:29:26+00:00

Look up the mode index for the astdp transmitter ship in the encoder's
atomic check and report an error if the display mode is not supported.

The lookup uses the DRM display mode instead of the driver's internal
VBIOS mode. Both are equivalent. The modesetting code later reads
the calculated index from the connector state to avoid recalculating it.

v2:
- fix typo in commit message (Jocelyn)

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20250204133209.403327-4-tzimmermann@suse.de

drm/ast: astdp: Inline mode-index calculation

2025-02-11T07:28:30+00:00

Programming the astdp transmitter chip requires a magic value for
individual modes. Inline the helper for calculating the value into
its only caller (i.e., the encoder's atomic_mode_set).

With further refactoring, the atomic check will be able to detect
invalid modes before attempting to program them.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20250204133209.403327-3-tzimmermann@suse.de

drm/ast: astdp: Add connector state

2025-02-11T07:28:30+00:00

Add dedicated connector state for ASTDP connectors. The state will
store values for programming the transmitter chip.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jocelyn Falempe 
Link: https://patchwork.freedesktop.org/patch/msgid/20250204133209.403327-2-tzimmermann@suse.de

Merge remote-tracking branch 'drm-misc/drm-misc-next-fixes' into drm-misc-fixes

2025-02-06T08:59:35+00:00

Merge the few remaining patches stuck into drm-misc-next-fixes.

Signed-off-by: Maxime Ripard