Hello, This is the 4th version of the kernel driver for Mali CSF-based GPUs. A branch based on drm-misc-next and containing all the dependencies that are not yet available in drm-misc-next here[1], and another [2] containing extra patches to have things working on rk3588. The CSF firmware binary can be found here[3], 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 [4]. Steve, I intentionally dropped your R-b on "drm/panthor: Add the heap logical block" and "drm/panthor: Add the scheduler logical block" because the tiler-OOM handling changed enough to require a new review IMHO. Regarding the GPL2+MIT relicensing, I collected Clément's R-b for the devfreq code, but am still lacking Alexey Sheplyakov for some bits in panthor_gpu.c. 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. v4: - Fix various bugs in the VM logic - Address comments from Steven, Liviu, Ketil and Chris - Move tiler OOM handling out of the scheduler interrupt handling path so we can properly recover when the system runs out of memory, and panthor is blocked trying to allocate heap chunks - Rework the heap locking to support concurrent chunk allocation. Not sure if this is supposed to happen, but we need to be robust against userspace passing the same heap context to two scheduling groups. Wasn't needed before the tiler_oom rework, because heap allocation base serialized by the scheduler lock. - Make kernel BO destruction robust to NULL/ERR pointers 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://gitlab.freedesktop.org/panfrost/linux/-/tree/panthor-v4 [2]https://gitlab.freedesktop.org/panfrost/linux/-/tree/panthor-v4+rk3588 [3]https://gitlab.com/firefly-linux/external/libmali/-/raw/firefly/firmware/g610/mali_csffw.bin [4]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 | 544 +++ drivers/gpu/drm/panthor/panthor_device.h | 393 ++ drivers/gpu/drm/panthor/panthor_drv.c | 1470 +++++++ drivers/gpu/drm/panthor/panthor_fw.c | 1334 +++++++ drivers/gpu/drm/panthor/panthor_fw.h | 504 +++ drivers/gpu/drm/panthor/panthor_gem.c | 228 ++ drivers/gpu/drm/panthor/panthor_gem.h | 144 + drivers/gpu/drm/panthor/panthor_gpu.c | 482 +++ drivers/gpu/drm/panthor/panthor_gpu.h | 52 + drivers/gpu/drm/panthor/panthor_heap.c | 596 +++ drivers/gpu/drm/panthor/panthor_heap.h | 39 + drivers/gpu/drm/panthor/panthor_mmu.c | 2760 +++++++++++++ drivers/gpu/drm/panthor/panthor_mmu.h | 102 + drivers/gpu/drm/panthor/panthor_regs.h | 239 ++ drivers/gpu/drm/panthor/panthor_sched.c | 3500 +++++++++++++++++ drivers/gpu/drm/panthor/panthor_sched.h | 48 + include/uapi/drm/panthor_drm.h | 945 +++++ 26 files changed, 13892 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
