Changes in Makefile

19969707 - drm/lima: Add optional devfreq and cooling device support

Thu, 19 Mar 2020 20:34:27 +0000

drm/lima: Add optional devfreq and cooling device supportMost platforms with a Mali-400 or Mali-450 GPU also have support forchanging the GPU clock frequency. Add devfreq support so the GPU clockrate is updated based on the actual GPU usage when the"operating-points-v2" property is present in the board.dts.The actual devfreq code is taken from panfrost_devfreq.c and modified soit matches what the lima hardware needs:- a call to dev_pm_opp_set_clkname() during initialization because there are two clocks on Mali-4x0 IPs. "core" is the one that actually clocks the GPU so we need to control it using devfreq.- locking when reading or writing the devfreq statistics because (unlike than panfrost) we have multiple PP and GP IRQs which may finish jobs concurrently.Signed-off-by: Martin Blumenstingl Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20200319203427.2259891-3-martin.blumenstingl@googlemail.com List of files: /linux-6.15/drivers/gpu/drm/lima/Makefile

7f60c4b9 - drm/lima: add trace point for tasks

Sat, 07 Mar 2020 13:54:38 +0000

drm/lima: add trace point for taskstrack lima task start which can be combined withdma_fence_signal to identify task execution time.example command to record:trace-cmd record -i \ -e "lima:lima_task_submit" -e "lima:lima_task_run" \ -e "*fence:*fence_signaled" -e "drm:drm_vblank_event" \ -e "drm:drm_vblank_event_queued" sleep 4Reviewed-by: Vasily Khoruzhick Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20200307135438.9981-1-yuq825@gmail.com List of files: /linux-6.15/drivers/gpu/drm/lima/Makefile

d61dd248 - drm/lima: use drm_gem_shmem_helpers

Thu, 10 Oct 2019 14:01:50 +0000

drm/lima: use drm_gem_shmem_helpersDo not need to maintain our own shmem memory managementcode as drm_gem_shmem_helpers provides it. And we canalso benifit from the work of others with shared code.This is also a preparation for implementing buffer madv.Reviewed-by: Vasily Khoruzhick Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20191010140152.17747-2-yuq825@gmail.com List of files: /linux-6.15/drivers/gpu/drm/lima/Makefile

a1d2a633 - drm/lima: driver for ARM Mali4xx GPUs

Sat, 09 Mar 2019 12:20:12 +0000

drm/lima: driver for ARM Mali4xx GPUs- Mali 4xx GPUs have two kinds of processors GP and PP. GP is for OpenGL vertex shader processing and PP is for fragment shader processing. Each processor has its own MMU so prcessors work in virtual address space.- There's only one GP but multiple PP (max 4 for mali 400 and 8 for mali 450) in the same mali 4xx GPU. All PPs are grouped togather to handle a single fragment shader task divided by FB output tiled pixels. Mali 400 user space driver is responsible for assign target tiled pixels to each PP, but mali 450 has a HW module called DLBU to dynamically balance each PP's load.- User space driver allocate buffer object and map into GPU virtual address space, upload command stream and draw data with CPU mmap of the buffer object, then submit task to GP/PP with a register frame indicating where is the command stream and misc settings.- There's no command stream validation/relocation due to each user process has its own GPU virtual address space. GP/PP's MMU switch virtual address space before running two tasks from different user process. Error or evil user space code just get MMU fault or GP/PP error IRQ, then the HW/SW will be recovered.- Use GEM+shmem for MM. Currently just alloc and pin memory when gem object creation. GPU vm map of the buffer is also done in the alloc stage in kernel space. We may delay the memory allocation and real GPU vm map to command submission stage in the furture as improvement.- Use drm_sched for GPU task schedule. Each OpenGL context should have a lima context object in the kernel to distinguish tasks from different user. drm_sched gets task from each lima context in a fair way.mesa driver can be found here before upstreamed:https://gitlab.freedesktop.org/lima/mesav8:- add comments for in_sync- fix ctx free miss mutex unlockv7:- remove lima_fence_ops with default value- move fence slab create to device probe- check pad ioctl args to be zero- add comments for user/kernel interfacev6:- fix comments by checkpatch.plv5:- export gp/pp version to userspace- rebase on drm-misc-nextv4:- use get param interface to get info- separate context create/free ioctl- remove unused max sched task param- update copyright time- use xarray instead of idr- stop using drmP.hv3:- fix comments from kbuild robot- restrict supported arch to tested onesv2:- fix syscall argument check- fix job finish fence leak since kernel 5.0- use drm syncobj to replace native fence- move buffer object GPU va map into kernel- reserve syscall argument space for future info- remove kernel gem modifier- switch TTM back to GEM+shmem MM- use time based io poll- use whole register name- adopt gem reservation obj integration- use drm_timeout_abs_to_jiffiesCc: Eric Anholt Cc: Rob Herring Cc: Christian König Cc: Daniel Vetter Cc: Alex Deucher Cc: Sam Ravnborg Cc: Rob Clark Cc: Dave Airlie Signed-off-by: Andreas Baierl Signed-off-by: Erico Nunes Signed-off-by: Heiko Stuebner Signed-off-by: Marek Vasut Signed-off-by: Neil Armstrong Signed-off-by: Simon Shields Signed-off-by: Vasily Khoruzhick Signed-off-by: Qiang Yu Reviewed-by: Eric Anholt Reviewed-by: Rob Herring Signed-off-by: Eric Anholt Link: https://patchwork.freedesktop.org/patch/291200/ List of files: /linux-6.15/drivers/gpu/drm/lima/Makefile