History log of /linux/drivers/gpu/drm/panfrost/panfrost_gpu.h (Results 1 – 25 of 49)
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# a23e1966 15-Jul-2024 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge branch 'next' into for-linus

Prepare input updates for 6.11 merge window.


Revision tags: v6.10, v6.10-rc7, v6.10-rc6, v6.10-rc5, v6.10-rc4, v6.10-rc3, v6.10-rc2
# 6f47c7ae 28-May-2024 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge tag 'v6.9' into next

Sync up with the mainline to bring in the new cleanup API.


Revision tags: v6.10-rc1
# 60a2f25d 16-May-2024 Tvrtko Ursulin <tursulin@ursulin.net>

Merge drm/drm-next into drm-intel-gt-next

Some display refactoring patches are needed in order to allow conflict-
less merging.

Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>


Revision tags: v6.9, v6.9-rc7, v6.9-rc6, v6.9-rc5, v6.9-rc4, v6.9-rc3, v6.9-rc2, v6.9-rc1, v6.8, v6.8-rc7, v6.8-rc6, v6.8-rc5, v6.8-rc4, v6.8-rc3, v6.8-rc2, v6.8-rc1
# 0ea5c948 15-Jan-2024 Jani Nikula <jani.nikula@intel.com>

Merge drm/drm-next into drm-intel-next

Backmerge to bring Xe driver to drm-intel-next.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>


# 03c11eb3 14-Feb-2024 Ingo Molnar <mingo@kernel.org>

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@k

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@kernel.org>

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# 42ac0be1 26-Jan-2024 Ingo Molnar <mingo@kernel.org>

Merge branch 'linus' into x86/mm, to refresh the branch and pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>


# fe33c0fb 17-Jan-2024 Andrew Morton <akpm@linux-foundation.org>

Merge branch 'master' into mm-hotfixes-stable


# cf79f291 22-Jan-2024 Maxime Ripard <mripard@kernel.org>

Merge v6.8-rc1 into drm-misc-fixes

Let's kickstart the 6.8 fix cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>


Revision tags: v6.7, v6.7-rc8, v6.7-rc7
# ab1c2470 19-Dec-2023 Arnaldo Carvalho de Melo <acme@redhat.com>

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers,

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers, etc.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

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# cf65598d 12-Jan-2024 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
"This contains two major new drivers:

- imagination is a first driver for Imagination

Merge tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
"This contains two major new drivers:

- imagination is a first driver for Imagination Technologies devices,
it only covers very specific devices, but there is hope to grow it

- xe is a reboot of the i915 GPU (shares display) side using a more
upstream focused development model, and trying to maximise code
sharing. It's not enabled for any hw by default, and will hopefully
get switched on for Intel's Lunarlake.

This also drops a bunch of the old UMS ioctls. It's been dead long
enough.

amdgpu has a bunch of new color management code that is being used in
the Steam Deck.

amdgpu also has a new ACPI WBRF interaction to help avoid radio
interference.

Otherwise it's the usual lots of changes in lots of places.

Detailed summary:

new drivers:
- imagination - new driver for Imagination Technologies GPU
- xe - new driver for Intel GPUs using core drm concepts

core:
- add CLOSE_FB ioctl
- remove old UMS ioctls
- increase max objects to accomodate AMD color mgmt

encoder:
- create per-encoder debugfs directory

edid:
- split out drm_eld
- SAD helpers
- drop edid_firmware module parameter

format-helper:
- cache format conversion buffers

sched:
- move from kthread to workqueue
- rename some internals
- implement dynamic job-flow control

gpuvm:
- provide more features to handle GEM objects

client:
- don't acquire module reference

displayport:
- add mst path property documentation

fdinfo:
- alignment fix

dma-buf:
- add fence timestamp helper
- add fence deadline support

bridge:
- transparent aux-bridge for DP/USB-C
- lt8912b: add suspend/resume support and power regulator support

panel:
- edp: AUO B116XTN02, BOE NT116WHM-N21,836X2, NV116WHM-N49
- chromebook panel support
- elida-kd35t133: rework pm
- powkiddy RK2023 panel
- himax-hx8394: drop prepare/unprepare and shutdown logic
- BOE BP101WX1-100, Powkiddy X55, Ampire AM8001280G
- Evervision VGG644804, SDC ATNA45AF01
- nv3052c: register docs, init sequence fixes, fascontek FS035VG158
- st7701: Anbernic RG-ARC support
- r63353 panel controller
- Ilitek ILI9805 panel controller
- AUO G156HAN04.0

simplefb:
- support memory regions
- support power domains

amdgpu:
- add new 64-bit sequence number infrastructure
- add AMD specific color management
- ACPI WBRF support for RF interference handling
- GPUVM updates
- RAS updates
- DCN 3.5 updates
- Rework PCIe link speed handling
- Document GPU reset types
- DMUB fixes
- eDP fixes
- NBIO 7.9/7.11 updates
- SubVP updates
- XGMI PCIe state dumping for aqua vanjaram
- GFX11 golden register updates
- enable tunnelling on high pri compute

amdkfd:
- Migrate TLB flushing logic to amdgpu
- Trap handler fixes
- Fix restore workers handling on suspend/resume
- Fix possible memory leak in pqm_uninit()
- support import/export of dma-bufs using GEM handles

radeon:
- fix possible overflows in command buffer checking
- check for errors in ring_lock

i915:
- reorg display code for reuse in xe driver
- fdinfo memory stats printing
- DP MST bandwidth mgmt improvements
- DP panel replay enabling
- MTL C20 phy state verification
- MTL DP DSC fractional bpp support
- Audio fastset support
- use dma_fence interfaces instead of i915_sw_fence
- Separate gem and display code
- AUX register macro refactoring
- Separate display module/device parameters
- Move display capabilities debugfs under display
- Makefile cleanups
- Register cleanups
- Move display lock inits under display/
- VLV/CHV DPIO PHY register and interface refactoring
- DSI VBT sequence refactoring
- C10/C20 PHY PLL hardware readout
- DPLL code cleanups
- Cleanup PXP plane protection checks
- Improve display debug msgs
- PSR selective fetch fixes/improvements
- DP MST fixes
- Xe2LPD FBC restrictions removed
- DGFX uses direct VBT pin mapping
- more MTL WAs
- fix MTL eDP bug
- eliminate use of kmap_atomic

habanalabs:
- sysfs entry to identify a device minor id with debugfs path
- sysfs entry to expose device module id
- add signed device info retrieval through INFO ioctl
- add Gaudi2C device support
- pcie reset prepare/done hooks

msm:
- Add support for SDM670, SM8650
- Handle the CFG interconnect to fix the obscure hangs / timeouts
- Kconfig fix for QMP dependency
- use managed allocators
- DPU: SDM670, SM8650 support
- DPU: Enable SmartDMA on SM8350 and SM8450
- DP: enable runtime PM support
- GPU: add metadata UAPI
- GPU: move devcoredumps to GPU device
- GPU: convert to drm_exec

ivpu:
- update FW API
- new debugfs file
- a new NOP job submission test mode
- improve suspend/resume
- PM improvements
- MMU PT optimizations
- firmware profile frequency support
- support for uncached buffers
- switch to gem shmem helpers
- replace kthread with threaded irqs

rockchip:
- rk3066_hdmi: convert to atomic
- vop2: support nv20 and nv30
- rk3588 support

mediatek:
- use devm_platform_ioremap_resource
- stop using iommu_present
- MT8188 VDOSYS1 display support

panfrost:
- PM improvements
- improve interrupt handling as poweroff

qaic:
- allow to run with single MSI
- support host/device time sync
- switch to persistent DRM devices

exynos:
- fix potential error pointer dereference
- fix wrong error checking
- add missing call to drm_atomic_helper_shutdown

omapdrm:
- dma-fence lockdep annotation fix

tidss:
- dma-fence lockdep annotation fix
- support for AM62A7

v3d:
- BCM2712 - rpi5 support
- fdinfo + gputop support
- uapi for CPU job handling

virtio-gpu:
- add context debug name"

* tag 'drm-next-2024-01-10' of git://anongit.freedesktop.org/drm/drm: (2340 commits)
drm/amd/display: Allow z8/z10 from driver
drm/amd/display: fix bandwidth validation failure on DCN 2.1
drm/amdgpu: apply the RV2 system aperture fix to RN/CZN as well
drm/amd/display: Move fixpt_from_s3132 to amdgpu_dm
drm/amd/display: Fix recent checkpatch errors in amdgpu_dm
Revert "drm/amdkfd: Relocate TBA/TMA to opposite side of VM hole"
drm/amd/display: avoid stringop-overflow warnings for dp_decide_lane_settings()
drm/amd/display: Fix power_helpers.c codestyle
drm/amd/display: Fix hdcp_log.h codestyle
drm/amd/display: Fix hdcp2_execution.c codestyle
drm/amd/display: Fix hdcp_psp.h codestyle
drm/amd/display: Fix freesync.c codestyle
drm/amd/display: Fix hdcp_psp.c codestyle
drm/amd/display: Fix hdcp1_execution.c codestyle
drm/amd/pm/smu7: fix a memleak in smu7_hwmgr_backend_init
drm/amdkfd: Fix iterator used outside loop in 'kfd_add_peer_prop()'
drm/amdgpu: Drop 'fence' check in 'to_amdgpu_amdkfd_fence()'
drm/amdkfd: Confirm list is non-empty before utilizing list_first_entry in kfd_topology.c
drm/amdgpu: Fix '*fw' from request_firmware() not released in 'amdgpu_ucode_request()'
drm/amdgpu: Fix variable 'mca_funcs' dereferenced before NULL check in 'amdgpu_mca_smu_get_mca_entry()'
...

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Revision tags: v6.7-rc6, v6.7-rc5
# cbaf84e7 10-Dec-2023 Rob Clark <robdclark@chromium.org>

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

Backmerge drm-misc-next to pick up some dependencies for drm/msm
patches, in particular:

https://patchwork.freedesktop.org/patch/

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

Backmerge drm-misc-next to pick up some dependencies for drm/msm
patches, in particular:

https://patchwork.freedesktop.org/patch/570219/?series=127251&rev=1
https://patchwork.freedesktop.org/series/123411/

Signed-off-by: Rob Clark <robdclark@chromium.org>

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# a60501d7 08-Dec-2023 Dave Airlie <airlied@redhat.com>

Merge tag 'drm-misc-next-2023-12-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 6.8:

UAPI Changes:
- Remove Userspace Mode-Setting ioctls
- v3d: New uapi to h

Merge tag 'drm-misc-next-2023-12-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 6.8:

UAPI Changes:
- Remove Userspace Mode-Setting ioctls
- v3d: New uapi to handle jobs involving the CPU

Cross-subsystem Changes:

Core Changes:
- atomic: Add support for FB-less planes which got reverted a bit
later for lack of IGT tests and userspace code, Dump private objects
state in drm_state_dump.
- dma-buf: Add fence deadline support
- encoder: Create per-encoder debugfs directory, move the bridge chain
file to that directory

Driver Changes:
- Include drm_auth.h in driver that use it but don't include it, Drop
drm_plane_helper.h from drivers that include it but don't use it
- imagination: Plenty of small fixes
- panfrost: Improve interrupt handling at poweroff
- qaic: Convert to persistent DRM devices
- tidss: Support for the AM62A7, a few probe improvements, some cleanups
- v3d: Support for jobs involving the CPU

- bridge:
- Create transparent aux-bridge for DP/USB-C
- lt8912b: Add suspend/resume support and power regulator support

- panel:
- himax-hx8394: Drop prepare, unprepare and shutdown logic, Support
panel rotation
- New panels: BOE BP101WX1-100, Powkiddy X55, Ampire AM8001280G,
Evervision VGG644804, SDC ATNA45AF01

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/yu5heqaufyeo4nlowzieu4s5unwqrqyx4jixbfjmzdon677rpk@t53vceua2dao

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# 157ad4cc 04-Dec-2023 AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

drm/panfrost: Synchronize and disable interrupts before powering off

To make sure that we don't unintentionally perform any unclocked and/or
unpowered R/W operation on GPU registers, before turning

drm/panfrost: Synchronize and disable interrupts before powering off

To make sure that we don't unintentionally perform any unclocked and/or
unpowered R/W operation on GPU registers, before turning off clocks and
regulators we must make sure that no GPU, JOB or MMU ISR execution is
pending: doing that requires to add a mechanism to synchronize the
interrupts on suspend.

Add functions panfrost_{gpu,job,mmu}_suspend_irq() which will perform
interrupts masking and ISR execution synchronization, and then call
those in the panfrost_device_runtime_suspend() handler in the exact
sequence of job (may require mmu!) -> mmu -> gpu.

As a side note, JOB and MMU suspend_irq functions needed some special
treatment: as their interrupt handlers will unmask interrupts, it was
necessary to add an `is_suspended` bitmap which is used to address the
possible corner case of unintentional IRQ unmasking because of ISR
execution after a call to synchronize_irq().

At resume, clear each is_suspended bit in the reset path of JOB/MMU
to allow unmasking the interrupts.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231204114215.54575-4-angelogioacchino.delregno@collabora.com

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Revision tags: v6.7-rc4, v6.7-rc3, v6.7-rc2, v6.7-rc1, v6.6
# a1c613ae 24-Oct-2023 Tvrtko Ursulin <tvrtko.ursulin@intel.com>

Merge drm/drm-next into drm-intel-gt-next

Work that needs to land in drm-intel-gt-next depends on two patches only
present in drm-intel-next, absence of which is causing a merge conflict:

3b918f4

Merge drm/drm-next into drm-intel-gt-next

Work that needs to land in drm-intel-gt-next depends on two patches only
present in drm-intel-next, absence of which is causing a merge conflict:

3b918f4f0c8b ("drm/i915/pxp: Optimize GET_PARAM:PXP_STATUS")
ac765b7018f6 ("drm/i915/pxp/mtl: intel_pxp_init_hw needs runtime-pm inside pm-complete")

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

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# 5d2d4a9f 15-Nov-2023 Peter Zijlstra <peterz@infradead.org>

Merge branch 'tip/perf/urgent'

Avoid conflicts, base on fixes.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>


# 7d461b29 01-Nov-2023 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'drm-next-2023-10-31-1' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
"Highlights:
- AMD adds some more upcoming HW platforms
- Intel made Meteorlake s

Merge tag 'drm-next-2023-10-31-1' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
"Highlights:
- AMD adds some more upcoming HW platforms
- Intel made Meteorlake stable and started adding Lunarlake
- nouveau has a bunch of display rework in prepartion for the NVIDIA
GSP firmware support
- msm adds a7xx support
- habanalabs has finished migration to accel subsystem

Detail summary:

kernel:
- add initial vmemdup-user-array

core:
- fix platform remove() to return void
- drm_file owner updated to reflect owner
- move size calcs to drm buddy allocator
- let GPUVM build as a module
- allow variable number of run-queues in scheduler

edid:
- handle bad h/v sync_end in EDIDs

panfrost:
- add Boris as maintainer

fbdev:
- use fb_ops helpers more
- only allow logo use from fbcon
- rename fb_pgproto to pgprot_framebuffer
- add HPD state to drm_connector_oob_hotplug_event
- convert to fbdev i/o mem helpers

i915:
- Enable meteorlake by default
- Early Xe2 LPD/Lunarlake display enablement
- Rework subplatforms into IP version checks
- GuC based TLB invalidation for Meteorlake
- Display rework for future Xe driver integration
- LNL FBC features
- LNL display feature capability reads
- update recommended fw versions for DG2+
- drop fastboot module parameter
- added deviceid for Arrowlake-S
- drop preproduction workarounds
- don't disable preemption for resets
- cleanup inlines in headers
- PXP firmware loading fix
- Fix sg list lengths
- DSC PPS state readout/verification
- Add more RPL P/U PCI IDs
- Add new DG2-G12 stepping
- DP enhanced framing support to state checker
- Improve shared link bandwidth management
- stop using GEM macros in display code
- refactor related code into display code
- locally enable W=1 warnings
- remove PSR watchdog timers on LNL

amdgpu:
- RAS/FRU EEPROM updatse
- IP discovery updatses
- GC 11.5 support
- DCN 3.5 support
- VPE 6.1 support
- NBIO 7.11 support
- DML2 support
- lots of IP updates
- use flexible arrays for bo list handling
- W=1 fixes
- Enable seamless boot in more cases
- Enable context type property for HDMI
- Rework GPUVM TLB flushing
- VCN IB start/size alignment fixes

amdkfd:
- GC 10/11 fixes
- GC 11.5 support
- use partial migration in GPU faults

radeon:
- W=1 Fixes
- fix some possible buffer overflow/NULL derefs

nouveau:
- update uapi for NO_PREFETCH
- scheduler/fence fixes
- rework suspend/resume for GSP-RM
- rework display in preparation for GSP-RM

habanalabs:
- uapi: expose tsc clock
- uapi: block access to eventfd through control device
- uapi: force dma-buf export to PAGE_SIZE alignments
- complete move to accel subsystem
- move firmware interface include files
- perform hard reset on PCIe AXI drain event
- optimise user interrupt handling

msm:
- DP: use existing helpers for DPCD
- DPU: interrupts reworked
- gpu: a7xx (a730/a740) support
- decouple msm_drv from kms for headless devices

mediatek:
- MT8188 dsi/dp/edp support
- DDP GAMMA - 12 bit LUT support
- connector dynamic selection capability

rockchip:
- rv1126 mipi-dsi/vop support
- add planar formats

ast:
- rename constants

panels:
- Mitsubishi AA084XE01
- JDI LPM102A188A
- LTK050H3148W-CTA6

ivpu:
- power management fixes

qaic:
- add detach slice bo api

komeda:
- add NV12 writeback

tegra:
- support NVSYNC/NHSYNC
- host1x suspend fixes

ili9882t:
- separate into own driver"

* tag 'drm-next-2023-10-31-1' of git://anongit.freedesktop.org/drm/drm: (1803 commits)
drm/amdgpu: Remove unused variables from amdgpu_show_fdinfo
drm/amdgpu: Remove duplicate fdinfo fields
drm/amd/amdgpu: avoid to disable gfxhub interrupt when driver is unloaded
drm/amdgpu: Add EXT_COHERENT support for APU and NUMA systems
drm/amdgpu: Retrieve CE count from ce_count_lo_chip in EccInfo table
drm/amdgpu: Identify data parity error corrected in replay mode
drm/amdgpu: Fix typo in IP discovery parsing
drm/amd/display: fix S/G display enablement
drm/amdxcp: fix amdxcp unloads incompletely
drm/amd/amdgpu: fix the GPU power print error in pm info
drm/amdgpu: Use pcie domain of xcc acpi objects
drm/amd: check num of link levels when update pcie param
drm/amdgpu: Add a read to GFX v9.4.3 ring test
drm/amd/pm: call smu_cmn_get_smc_version in is_mode1_reset_supported.
drm/amdgpu: get RAS poison status from DF v4_6_2
drm/amdgpu: Use discovery table's subrevision
drm/amd/display: 3.2.256
drm/amd/display: add interface to query SubVP status
drm/amd/display: Read before writing Backlight Mode Set Register
drm/amd/display: Disable SYMCLK32_SE RCO on DCN314
...

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Revision tags: v6.6-rc7
# d32ce5ab 16-Oct-2023 Dave Airlie <airlied@redhat.com>

Merge tag 'drm-misc-next-2023-10-12' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v6.7-rc1:

Contains the previous pull request drm-misc-next-2023-10-06 + following:

Merge tag 'drm-misc-next-2023-10-12' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v6.7-rc1:

Contains the previous pull request drm-misc-next-2023-10-06 + following:

Cross-subsystem Changes:
- Rename fb_pgprot to pgprot_framebuffer and remove file argument/
- Update iosys-map documentation typos.

Core Changes:
- Assorted fixes to drm/panel.
- Add HPD state to drm_connector_oob_hotplug_event(), and implement
oob hotplug events in bridge connector.
- Replace drm_framebuffer_plane_width/height with calls to
drm_format_info_plane_width/height.

Driver Changes:
- Clock and debug fixes for bridge/samsung-dsim.
- More btree -> maple tree conversions.
- Assorted bugfixes in rockchip, panel-tpo-tpg110,
- Add LTK050H3148W-CTA6 panel support.
- Assorted small fixes in host1x, tegra, simpledrm.
- Suspend fixes for host1x.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3812345e-b086-4d72-8504-f58d84e8feab@linux.intel.com

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Revision tags: v6.6-rc6, v6.6-rc5, v6.6-rc4
# f11b0417 29-Sep-2023 Adrián Larumbe <adrian.larumbe@collabora.com>

drm/panfrost: Add fdinfo support GPU load metrics

The drm-stats fdinfo tags made available to user space are drm-engine,
drm-cycles, drm-max-freq and drm-curfreq, one per job slot.

This deviates fr

drm/panfrost: Add fdinfo support GPU load metrics

The drm-stats fdinfo tags made available to user space are drm-engine,
drm-cycles, drm-max-freq and drm-curfreq, one per job slot.

This deviates from standard practice in other DRM drivers, where a single
set of key:value pairs is provided for the whole render engine. However,
Panfrost has separate queues for fragment and vertex/tiler jobs, so a
decision was made to calculate bus cycles and workload times separately.

Maximum operating frequency is calculated at devfreq initialisation time.
Current frequency is made available to user space because nvtop uses it
when performing engine usage calculations.

It is important to bear in mind that both GPU cycle and kernel time numbers
provided are at best rough estimations, and always reported in excess from
the actual figure because of two reasons:
- Excess time because of the delay between the end of a job processing,
the subsequent job IRQ and the actual time of the sample.
- Time spent in the engine queue waiting for the GPU to pick up the next
job.

To avoid race conditions during enablement/disabling, a reference counting
mechanism was introduced, and a job flag that tells us whether a given job
increased the refcount. This is necessary, because user space can toggle
cycle counting through a debugfs file, and a given job might have been in
flight by the time cycle counting was disabled.

The main goal of the debugfs cycle counter knob is letting tools like nvtop
or IGT's gputop switch it at any time, to avoid power waste in case no
engine usage measuring is necessary.

Also add a documentation file explaining the possible values for fdinfo's
engine keystrings and Panfrost-specific drm-curfreq-<keystr> pairs.

Signed-off-by: Adrián Larumbe <adrian.larumbe@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230929181616.2769345-3-adrian.larumbe@collabora.com

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Revision tags: v6.6-rc3, v6.6-rc2, v6.6-rc1, v6.5, v6.5-rc7, v6.5-rc6, v6.5-rc5, v6.5-rc4, v6.5-rc3, v6.5-rc2, v6.5-rc1, v6.4, v6.4-rc7, v6.4-rc6, v6.4-rc5, v6.4-rc4, v6.4-rc3, v6.4-rc2, v6.4-rc1, v6.3, v6.3-rc7, v6.3-rc6, v6.3-rc5, v6.3-rc4, v6.3-rc3, v6.3-rc2, v6.3-rc1, v6.2, v6.2-rc8, v6.2-rc7, v6.2-rc6, v6.2-rc5, v6.2-rc4, v6.2-rc3, v6.2-rc2, v6.2-rc1, v6.1, v6.1-rc8, v6.1-rc7, v6.1-rc6, v6.1-rc5, v6.1-rc4, v6.1-rc3, v6.1-rc2, v6.1-rc1, v6.0, v6.0-rc7, v6.0-rc6, v6.0-rc5, v6.0-rc4, v6.0-rc3, v6.0-rc2, v6.0-rc1, v5.19, v5.19-rc8, v5.19-rc7, v5.19-rc6, v5.19-rc5, v5.19-rc4, v5.19-rc3, v5.19-rc2, v5.19-rc1, v5.18, v5.18-rc7, v5.18-rc6, v5.18-rc5, v5.18-rc4, v5.18-rc3, v5.18-rc2, v5.18-rc1, v5.17, v5.17-rc8, v5.17-rc7, v5.17-rc6, v5.17-rc5, v5.17-rc4, v5.17-rc3, v5.17-rc2, v5.17-rc1, v5.16, v5.16-rc8, v5.16-rc7, v5.16-rc6, v5.16-rc5, v5.16-rc4, v5.16-rc3, v5.16-rc2, v5.16-rc1, v5.15, v5.15-rc7, v5.15-rc6, v5.15-rc5, v5.15-rc4, v5.15-rc3, v5.15-rc2, v5.15-rc1, v5.14, v5.14-rc7, v5.14-rc6, v5.14-rc5, v5.14-rc4, v5.14-rc3, v5.14-rc2, v5.14-rc1, v5.13, v5.13-rc7, v5.13-rc6, v5.13-rc5, v5.13-rc4, v5.13-rc3, v5.13-rc2, v5.13-rc1, v5.12, v5.12-rc8, v5.12-rc7, v5.12-rc6, v5.12-rc5, v5.12-rc4, v5.12-rc3, v5.12-rc2, v5.12-rc1-dontuse
# cbecf716 23-Feb-2021 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge branch 'next' into for-linus

Prepare input updates for 5.12 merge window.


# 415e915f 23-Feb-2021 Dmitry Torokhov <dmitry.torokhov@gmail.com>

Merge tag 'v5.11' into next

Merge with mainline to get latest APIs and device tree bindings.


Revision tags: v5.11, v5.11-rc7, v5.11-rc6, v5.11-rc5, v5.11-rc4, v5.11-rc3, v5.11-rc2, v5.11-rc1, v5.10
# 58f7553f 11-Dec-2020 Mark Brown <broonie@kernel.org>

Merge remote-tracking branch 'spi/for-5.10' into spi-linus


# 031616c4 11-Dec-2020 Mark Brown <broonie@kernel.org>

Merge remote-tracking branch 'asoc/for-5.10' into asoc-linus


# 3c09ec59 09-Dec-2020 Catalin Marinas <catalin.marinas@arm.com>

Merge branches 'for-next/kvm-build-fix', 'for-next/va-refactor', 'for-next/lto', 'for-next/mem-hotplug', 'for-next/cppc-ffh', 'for-next/pad-image-header', 'for-next/zone-dma-default-32-bit', 'for-nex

Merge branches 'for-next/kvm-build-fix', 'for-next/va-refactor', 'for-next/lto', 'for-next/mem-hotplug', 'for-next/cppc-ffh', 'for-next/pad-image-header', 'for-next/zone-dma-default-32-bit', 'for-next/signal-tag-bits' and 'for-next/cmdline-extended' into for-next/core

* for-next/kvm-build-fix:
: Fix KVM build issues with 64K pages
KVM: arm64: Fix build error in user_mem_abort()

* for-next/va-refactor:
: VA layout changes
arm64: mm: don't assume struct page is always 64 bytes
Documentation/arm64: fix RST layout of memory.rst
arm64: mm: tidy up top of kernel VA space
arm64: mm: make vmemmap region a projection of the linear region
arm64: mm: extend linear region for 52-bit VA configurations

* for-next/lto:
: Upgrade READ_ONCE() to RCpc acquire on arm64 with LTO
arm64: lto: Strengthen READ_ONCE() to acquire when CONFIG_LTO=y
arm64: alternatives: Remove READ_ONCE() usage during patch operation
arm64: cpufeatures: Add capability for LDAPR instruction
arm64: alternatives: Split up alternative.h
arm64: uaccess: move uao_* alternatives to asm-uaccess.h

* for-next/mem-hotplug:
: Memory hotplug improvements
arm64/mm/hotplug: Ensure early memory sections are all online
arm64/mm/hotplug: Enable MEM_OFFLINE event handling
arm64/mm/hotplug: Register boot memory hot remove notifier earlier
arm64: mm: account for hotplug memory when randomizing the linear region

* for-next/cppc-ffh:
: Add CPPC FFH support using arm64 AMU counters
arm64: abort counter_read_on_cpu() when irqs_disabled()
arm64: implement CPPC FFH support using AMUs
arm64: split counter validation function
arm64: wrap and generalise counter read functions

* for-next/pad-image-header:
: Pad Image header to 64KB and unmap it
arm64: head: tidy up the Image header definition
arm64/head: avoid symbol names pointing into first 64 KB of kernel image
arm64: omit [_text, _stext) from permanent kernel mapping

* for-next/zone-dma-default-32-bit:
: Default to 32-bit wide ZONE_DMA (previously reduced to 1GB for RPi4)
of: unittest: Fix build on architectures without CONFIG_OF_ADDRESS
mm: Remove examples from enum zone_type comment
arm64: mm: Set ZONE_DMA size based on early IORT scan
arm64: mm: Set ZONE_DMA size based on devicetree's dma-ranges
of: unittest: Add test for of_dma_get_max_cpu_address()
of/address: Introduce of_dma_get_max_cpu_address()
arm64: mm: Move zone_dma_bits initialization into zone_sizes_init()
arm64: mm: Move reserve_crashkernel() into mem_init()
arm64: Force NO_BLOCK_MAPPINGS if crashkernel reservation is required
arm64: Ignore any DMA offsets in the max_zone_phys() calculation

* for-next/signal-tag-bits:
: Expose the FAR_EL1 tag bits in siginfo
arm64: expose FAR_EL1 tag bits in siginfo
signal: define the SA_EXPOSE_TAGBITS bit in sa_flags
signal: define the SA_UNSUPPORTED bit in sa_flags
arch: provide better documentation for the arch-specific SA_* flags
signal: clear non-uapi flag bits when passing/returning sa_flags
arch: move SA_* definitions to generic headers
parisc: start using signal-defs.h
parisc: Drop parisc special case for __sighandler_t

* for-next/cmdline-extended:
: Add support for CONFIG_CMDLINE_EXTENDED
arm64: Extend the kernel command line from the bootloader
arm64: kaslr: Refactor early init command line parsing

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Revision tags: v5.10-rc7, v5.10-rc6
# 20c7775a 26-Nov-2020 Peter Zijlstra <peterz@infradead.org>

Merge remote-tracking branch 'origin/master' into perf/core

Further perf/core patches will depend on:

d3f7b1bb2040 ("mm/gup: fix gup_fast with dynamic page table folding")

which is already in Li

Merge remote-tracking branch 'origin/master' into perf/core

Further perf/core patches will depend on:

d3f7b1bb2040 ("mm/gup: fix gup_fast with dynamic page table folding")

which is already in Linus' tree.

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Revision tags: v5.10-rc5, v5.10-rc4, v5.10-rc3
# 666fab4a 07-Nov-2020 Ingo Molnar <mingo@kernel.org>

Merge branch 'linus' into perf/kprobes

Conflicts:
include/asm-generic/atomic-instrumented.h
kernel/kprobes.c

Use the upstream atomic-instrumented.h checksum, and pick
the kprobes version of kerne

Merge branch 'linus' into perf/kprobes

Conflicts:
include/asm-generic/atomic-instrumented.h
kernel/kprobes.c

Use the upstream atomic-instrumented.h checksum, and pick
the kprobes version of kernel/kprobes.c, which effectively
reverts this upstream workaround:

645f224e7ba2: ("kprobes: Tell lockdep about kprobe nesting")

Since the new code *should* be fine without nesting.

Knock on wood ...

Signed-off-by: Ingo Molnar <mingo@kernel.org>

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