[PATCH v3 00/14] drm: Add a driver for CSF-based Mali GPUs

[Boris Brezillon]

Hello,

This is the 3rd version of the kernel driver for Mali CSF-based GPUs.

With all the DRM dependencies being merged (drm-sched single entity and
drm_gpuvm), I thought now was a good time to post a new version. Note
that the iommu series we depend on [1] has been merged recently. The
only remaining dependency that hasn't been merged yet is this rather
trival drm_gpuvm [2] patch.

As for v2, I pushed a branch based on drm-misc-next and containing
all the dependencies that are not yet available in drm-misc-next
here[3], and another [4] containing extra patches to have things
working on rk3588. The CSF firmware binary can be found here[5], and
should be placed under /lib/firmware/arm/mali/arch10.8/mali_csffw.bin.

The mesa MR adding v10 support on top of panthor is available here [6].

Regarding the GPL2+MIT relicensing, Liviu did an audit and found two
more people that I didn't spot initially: Clément Péron for the devfreq
code, and Alexey Sheplyakov for some bits in panthor_gpu.c. Both are
Cc-ed on the relevant patches. The rest of the code is either new, or
covered by the Linaro, Arm and Collabora acks.

And here is a non-exhaustive changelog, check each commit for a detailed
changelog.

v3;
- Quite a few changes at the MMU/sched level to make the fix some
  race conditions and deadlocks
- Addition of the a sync-only VM_BIND operation (to support
  vkQueueSparseBind with zero commands).
- Addition of a VM_GET_STATE ioctl
- Various cosmetic changes (see the commit changelogs for more details)
- Various fixes (see the commit changelogs for more details)

v2:
- Rename the driver (pancsf -> panthor)
- Split the commit adding the driver to ease review
- Use drm_sched for dependency tracking/job submission
- Add a VM_BIND ioctl
- Add the concept of exclusive VM for BOs that are only ever mapped to a
  single VM
- Document the code and uAPI
- Add a DT binding doc

Regards,

Boris

[1]https://lore.kernel.org/linux-arm-kernel/20231124142434.1577550-1-boris.brezillon@collabora.com/T/
[2]https://patchwork.freedesktop.org/patch/570380/
[3]https://gitlab.freedesktop.org/panfrost/linux/-/tree/panthor-v3
[4]https://gitlab.freedesktop.org/panfrost/linux/-/tree/panthor-v3+rk3588
[5]https://gitlab.com/firefly-linux/external/libmali/-/raw/firefly/firmware/g610/mali_csffw.bin
[6]https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26358

Boris Brezillon (13):
  drm/panthor: Add uAPI
  drm/panthor: Add GPU register definitions
  drm/panthor: Add the device logical block
  drm/panthor: Add the GPU logical block
  drm/panthor: Add GEM logical block
  drm/panthor: Add the devfreq logical block
  drm/panthor: Add the MMU/VM logical block
  drm/panthor: Add the FW logical block
  drm/panthor: Add the heap logical block
  drm/panthor: Add the scheduler logical block
  drm/panthor: Add the driver frontend block
  drm/panthor: Allow driver compilation
  drm/panthor: Add an entry to MAINTAINERS

Liviu Dudau (1):
  dt-bindings: gpu: mali-valhall-csf: Add support for Arm Mali CSF GPUs

 .../bindings/gpu/arm,mali-valhall-csf.yaml    |  147 +
 Documentation/gpu/driver-uapi.rst             |    5 +
 MAINTAINERS                                   |   11 +
 drivers/gpu/drm/Kconfig                       |    2 +
 drivers/gpu/drm/Makefile                      |    1 +
 drivers/gpu/drm/panthor/Kconfig               |   23 +
 drivers/gpu/drm/panthor/Makefile              |   15 +
 drivers/gpu/drm/panthor/panthor_devfreq.c     |  283 ++
 drivers/gpu/drm/panthor/panthor_devfreq.h     |   25 +
 drivers/gpu/drm/panthor/panthor_device.c      |  497 +++
 drivers/gpu/drm/panthor/panthor_device.h      |  381 ++
 drivers/gpu/drm/panthor/panthor_drv.c         | 1454 +++++++
 drivers/gpu/drm/panthor/panthor_fw.c          | 1332 +++++++
 drivers/gpu/drm/panthor/panthor_fw.h          |  504 +++
 drivers/gpu/drm/panthor/panthor_gem.c         |  227 ++
 drivers/gpu/drm/panthor/panthor_gem.h         |  144 +
 drivers/gpu/drm/panthor/panthor_gpu.c         |  481 +++
 drivers/gpu/drm/panthor/panthor_gpu.h         |   52 +
 drivers/gpu/drm/panthor/panthor_heap.c        |  517 +++
 drivers/gpu/drm/panthor/panthor_heap.h        |   36 +
 drivers/gpu/drm/panthor/panthor_mmu.c         | 2653 +++++++++++++
 drivers/gpu/drm/panthor/panthor_mmu.h         |  101 +
 drivers/gpu/drm/panthor/panthor_regs.h        |  237 ++
 drivers/gpu/drm/panthor/panthor_sched.c       | 3410 +++++++++++++++++
 drivers/gpu/drm/panthor/panthor_sched.h       |   48 +
 include/uapi/drm/panthor_drm.h                |  892 +++++
 26 files changed, 13478 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpu/arm,mali-valhall-csf.yaml
 create mode 100644 drivers/gpu/drm/panthor/Kconfig
 create mode 100644 drivers/gpu/drm/panthor/Makefile
 create mode 100644 drivers/gpu/drm/panthor/panthor_devfreq.c
 create mode 100644 drivers/gpu/drm/panthor/panthor_devfreq.h
 create mode 100644 drivers/gpu/drm/panthor/panthor_device.c
 create mode 100644 drivers/gpu/drm/panthor/panthor_device.h
 create mode 100644 drivers/gpu/drm/panthor/panthor_drv.c
 create mode 100644 drivers/gpu/drm/panthor/panthor_fw.c
 create mode 100644 drivers/gpu/drm/panthor/panthor_fw.h
 create mode 100644 drivers/gpu/drm/panthor/panthor_gem.c
 create mode 100644 drivers/gpu/drm/panthor/panthor_gem.h
 create mode 100644 drivers/gpu/drm/panthor/panthor_gpu.c
 create mode 100644 drivers/gpu/drm/panthor/panthor_gpu.h
 create mode 100644 drivers/gpu/drm/panthor/panthor_heap.c
 create mode 100644 drivers/gpu/drm/panthor/panthor_heap.h
 create mode 100644 drivers/gpu/drm/panthor/panthor_mmu.c
 create mode 100644 drivers/gpu/drm/panthor/panthor_mmu.h
 create mode 100644 drivers/gpu/drm/panthor/panthor_regs.h
 create mode 100644 drivers/gpu/drm/panthor/panthor_sched.c
 create mode 100644 drivers/gpu/drm/panthor/panthor_sched.h
 create mode 100644 include/uapi/drm/panthor_drm.h

-- 
2.43.0