#
36ec807b |
| 20-Sep-2024 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare input updates for 6.12 merge window.
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Revision tags: v6.11, v6.11-rc7, v6.11-rc6, v6.11-rc5, v6.11-rc4, v6.11-rc3, v6.11-rc2, v6.11-rc1 |
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#
3daee2e4 |
| 16-Jul-2024 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge tag 'v6.10' into next
Sync up with mainline to bring in device_for_each_child_node_scoped() and other newer APIs.
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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.
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Revision tags: v6.10, v6.10-rc7, v6.10-rc6, v6.10-rc5, v6.10-rc4, v6.10-rc3, v6.10-rc2 |
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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.
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#
92815da4 |
| 12-Jun-2024 |
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> |
Merge remote-tracking branch 'drm-misc/drm-misc-next' into HEAD
Merge drm-misc-next tree into the msm-next tree in order to be able to use HDMI connector framework for the MSM HDMI driver.
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Revision tags: v6.10-rc1 |
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#
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>
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Revision tags: v6.9, v6.9-rc7 |
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#
aa66c93d |
| 03-May-2024 |
Rodrigo Vivi <rodrigo.vivi@intel.com> |
Merge drm/drm-next into drm-intel-next
A backmerge to sync xe and i915 and allow us to merge "Enable display support for Battlemage" series through drm-intel
Link: https://patchwork.freedesktop.org
Merge drm/drm-next into drm-intel-next
A backmerge to sync xe and i915 and allow us to merge "Enable display support for Battlemage" series through drm-intel
Link: https://patchwork.freedesktop.org/series/132429/
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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#
0c8ea05e |
| 04-Jul-2024 |
Peter Zijlstra <peterz@infradead.org> |
Merge branch 'tip/x86/cpu'
The Lunarlake patches rely on the new VFM stuff.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
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594ce0b8 |
| 10-Jun-2024 |
Russell King (Oracle) <rmk+kernel@armlinux.org.uk> |
Merge topic branches 'clkdev' and 'fixes' into for-linus
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#
f73a058b |
| 28-May-2024 |
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> |
Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes
v6.10-rc1 is released, forward from v6.9
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
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#
db5d28c0 |
| 15-May-2024 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel
Pull drm updates from Dave Airlie: "This is the main pull request for the drm subsystems for 6.10.
In drivers the mai
Merge tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel
Pull drm updates from Dave Airlie: "This is the main pull request for the drm subsystems for 6.10.
In drivers the main thing is a new driver for ARM Mali firmware based GPUs, otherwise there are a lot of changes to amdgpu/xe/i915/msm and scattered changes to everything else.
In the core a bunch of headers and Kconfig was refactored, along with the addition of a new panic handler which is meant to provide a user friendly message when a panic happens and graphical display is enabled.
New drivers: - panthor: ARM Mali/Immortalis CSF-based GPU driver
Core: - add a CONFIG_DRM_WERROR option - make more headers self-contained - grab resv lock in pin/unpin - fix vmap resv locking - EDID/eDP panel matching - Kconfig cleanups - DT sound bindings - Add SIZE_HINTS property for cursor planes - Add struct drm_edid_product_id and helpers. - Use drm device based logging in more drm functions. - drop seq_file.h from a bunch of places - use drm_edid driver conversions
dp: - DP Tunnel documentation - MST read sideband cap - Adaptive sync SDP prep work
ttm: - improve placement for TTM BOs in idle/busy handling
panic: - Fixes for drm-panic, and option to test it. - Add drm panic to simpledrm, mgag200, imx, ast
bridge: - improve init ordering - adv7511: allow GPIO pin sharing - tc358775: add tc358675 support
panel: - AUO B120XAN01.0 - Samsung s6e3fa7 - BOE NT116WHM-N44 - CMN N116BCA-EA1, - CrystalClear CMT430B19N00 - Startek KD050HDFIA020-C020A - powertip PH128800T006-ZHC01 - Innolux G121X1-L03 - LG sw43408 - Khadas TS050 V2 - EDO RM69380 OLED - CSOT MNB601LS1-1
amdgpu: - HDCP/ODM/RAS fixes - Devcoredump improvements - Expose VCN activity via sysfs - SMY 13.0.x updates - Enable fast updates on DCN 3.1.4 - Add dclk and vclk reporting on additional devices - Add ACA RAS infrastructure - Implement TLB flush fence - EEPROM handling fixes - SMUIO 14.0.2 support - SMU 14.0.1 Updates - SMU 14.0.2 support - Sync page table freeing with TLB flushes - DML2 refactor - DC debug improvements - DCN 3.5.x Updates - GPU reset fixes - HDP fix for second GFX pipe on GC 10.x - Enable secondary GFX pipe on GC 10.3 - Refactor and clean up BACO/BOCO/BAMACO handling - Remove invalid TTM resource start check - UAF fix in VA IOCTL - GPUVM page fault redirection to secondary IH rings for IH 6.x - Initial support for mapping kernel queues via MES - Fix VRAM memory accounting
amdkfd: - MQD handling cleanup - Preemption handling fixes for XCDs - TLB flush fix for GC 9.4.2 - Properly clean up workqueue during module unload - Fix memory leak process create failure - Range check CP bad op exception targets to avoid reporting invalid exceptions to userspace - Fix eviction fence handling - Fix leak in GPU memory allocation failure case - DMABuf import handling fix - Enable SQ watchpoint for gfx10
i915: - Adding new DG2 PCI ID - add context hints for GT frequency - enable only one CCS for compute workloads - new workarounds - Fix UAF on destroy against retire race and remove two earlier partial fixes - Limit the reserved VM space to only the platforms that need it - Fix gt reset with GuC submission is disable - Add and use gt_to_guc() wrapper
i915/xe display: - Lunar Lake display enabling, including cdclk and other refactors - BIOS/VBT/opregion related refactor - Digital port related refactor/clean-up - Fix 2s boot time regression on DP panel replay init - Remove duplication on audio enable/disable on SDVO and g4x+ DP - Disable AuxCCS framebuffers if built for Xe - Make crtc disable more atomic - Increase DP idle pattern wait timeout to 2ms - Start using container_of_const() for some extra const safety - Fix Jasper Lake boot freeze - Enable MST mode for 128b/132b single-stream sideband - Enable Adaptive Sync SDP Support for DP - Fix MTL supported DP rates - removal of UHBR13.5 - PLL refactoring - Limit eDP MSO pipe only for display version 20 - More display refactor towards independence from i915 dev_priv - Convert i915/xe fbdev to DRM client - More initial work to make display code more independent from i915
xe: - improved error capture - clean up some uAPI leftovers - devcoredump update - Add BMG mocs table - Handle GSCCS ER interrupt - Implement xe2- and GuC workarounds - struct xe_device cleanup - Hwmon updates - Add LRC parsing for more GPU instruction - Increase VM_BIND number of per-ioctl Ops - drm/xe: Add XE_BO_GGTT_INVALIDATE flag - Initial development for SR-IOV support - Add new PCI IDs to DG2 platform - Move userptr over to start using hmm_range_fault
msm: - Switched to generating register header files during build process instead of shipping pre-generated headers - Merged DPU and MDP4 format databases. - DP: - Stop using compat string to distinguish DP and eDP cases - Added support for X Elite platform (X1E80100) - Reworked DP aux/audio support - Added SM6350 DP to the bindings - GPU: - a7xx perfcntr reg fixes - MAINTAINERS updates - a750 devcoredump support
radeon: - Silence UBSAN warnings related to flexible arrays
nouveau: - move some uAPI objects to uapi headers
omapdrm: - console fix
ast: - add i2c polling
qaic: - add debugfs entries
exynos: - fix platform_driver .owner - drop cleanup code
mediatek: - Use devm_platform_get_and_ioremap_resource() in mtk_hdmi_ddc_probe() - Add GAMMA 12-bit LUT support for MT8188 - Rename mtk_drm_* to mtk_* - Drop driver owner initialization - Correct calculation formula of PHY Timing"
* tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel: (1477 commits) drm/xe/ads: Use flexible-array drm/xe: Use ordered WQ for G2H handler drm/msm/gen_header: allow skipping the validation drm/msm/a6xx: Cleanup indexed regs const'ness drm/msm: Add devcoredump support for a750 drm/msm: Adjust a7xx GBIF debugbus dumping drm/msm: Update a6xx registers XML drm/msm: Fix imported a750 snapshot header for upstream drm/msm: Import a750 snapshot registers from kgsl MAINTAINERS: Add Konrad Dybcio as a reviewer for the Adreno driver MAINTAINERS: Add a separate entry for Qualcomm Adreno GPU drivers drm/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails drm/msm/adreno: fix CP cycles stat retrieval on a7xx drm/msm/a7xx: allow writing to CP_BV counter selection registers drm: zynqmp_dpsub: Always register bridge Revert "drm/bridge: ti-sn65dsi83: Fix enable error path" drm/fb_dma: Add checks in drm_fb_dma_get_scanout_buffer() drm/fbdev-generic: Do not set physical framebuffer address drm/panthor: Fix the FW reset logic drm/panthor: Make sure we handle 'unknown group state' case properly ...
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Revision tags: v6.9-rc6, v6.9-rc5, v6.9-rc4 |
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#
79790b68 |
| 12-Apr-2024 |
Thomas Hellström <thomas.hellstrom@linux.intel.com> |
Merge drm/drm-next into drm-xe-next
Backmerging drm-next in order to get up-to-date and in particular to access commit 9ca5facd0400f610f3f7f71aeb7fc0b949a48c67.
Signed-off-by: Thomas Hellström <tho
Merge drm/drm-next into drm-xe-next
Backmerging drm-next in order to get up-to-date and in particular to access commit 9ca5facd0400f610f3f7f71aeb7fc0b949a48c67.
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
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Revision tags: v6.9-rc3 |
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#
fee54d08 |
| 05-Apr-2024 |
Dave Airlie <airlied@redhat.com> |
Merge tag 'drm-misc-next-2024-03-28' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
Two misc-next in one.
drm-misc-next for v6.10-rc1:
The deal of a lifetime! You get ALL of the p
Merge tag 'drm-misc-next-2024-03-28' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
Two misc-next in one.
drm-misc-next for v6.10-rc1:
The deal of a lifetime! You get ALL of the previous drm-misc-next-2024-03-21-1 tag!!
But WAIT, there's MORE!
Cross-subsystem Changes: - Assorted DT binding updates.
Core Changes: - Clarify how optional wait_hpd_asserted is. - Shuffle Kconfig names around.
Driver Changes: - Assorted build fixes for panthor, imagination, - Add AUO B120XAN01.0 panels. - Assorted small fixes to panthor, panfrost.
drm-misc-next for v6.10: UAPI Changes: - Move some nouveau magic constants to uapi.
Cross-subsystem Changes: - Move drm-misc to gitlab and freedesktop hosting. - Add entries for panfrost.
Core Changes: - Improve placement for TTM bo's in idle/busy handling. - Improve drm/bridge init ordering. - Add CONFIG_DRM_WERROR, and use W=1 for drm. - Assorted documentation updates. - Make more (drm and driver) headers self-contained and add header guards. - Grab reservation lock in pin/unpin callbacks. - Fix reservation lock handling for vmap. - Add edp and edid panel matching, use it to fix a nearly identical panel.
Driver Changes: - Add drm/panthor driver and assorted fixes. - Assorted small fixes to xlnx, panel-edp, tidss, ci, nouveau, panel and bridge drivers. - Add Samsung s6e3fa7, BOE NT116WHM-N44, CMN N116BCA-EA1, CrystalClear CMT430B19N00, Startek KD050HDFIA020-C020A, powertip PH128800T006-ZHC01 panels. - Fix console for omapdrm.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/bea310a6-6ff6-477e-9363-f9f053cfd12a@linux.intel.com
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Revision tags: v6.9-rc2, v6.9-rc1, v6.8 |
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#
b12f3ea7 |
| 06-Mar-2024 |
Adrián Larumbe <adrian.larumbe@collabora.com> |
drm/panfrost: Replace fdinfo's profiling debugfs knob with sysfs
Debugfs isn't always available in production builds that try to squeeze every single byte out of the kernel image, but we still need
drm/panfrost: Replace fdinfo's profiling debugfs knob with sysfs
Debugfs isn't always available in production builds that try to squeeze every single byte out of the kernel image, but we still need a way to toggle the timestamp and cycle counter registers so that jobs can be profiled for fdinfo's drm engine and cycle calculations.
Drop the debugfs knob and replace it with a sysfs file that accomplishes the same functionality, and document its ABI in a separate file.
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> Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240306015819.822128-2-adrian.larumbe@collabora.com
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Revision tags: v6.8-rc7, v6.8-rc6, v6.8-rc5, v6.8-rc4, v6.8-rc3, v6.8-rc2, v6.8-rc1 |
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#
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>
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#
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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Revision tags: v6.7, v6.7-rc8, v6.7-rc7 |
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#
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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Revision tags: v6.7-rc6, v6.7-rc5, v6.7-rc4, v6.7-rc3, v6.7-rc2, v6.7-rc1, v6.6 |
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#
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>
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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 |
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#
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 |
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#
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 |
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4f2c0a4a |
| 14-Dec-2022 |
Nick Terrell <terrelln@fb.com> |
Merge branch 'main' into zstd-linus
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e291c116 |
| 12-Dec-2022 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare input updates for 6.2 merge window.
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Revision tags: v6.1, v6.1-rc8, v6.1-rc7, v6.1-rc6, v6.1-rc5, v6.1-rc4, v6.1-rc3, v6.1-rc2 |
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14e77332 |
| 22-Oct-2022 |
Nick Terrell <terrelln@fb.com> |
Merge branch 'main' into zstd-next
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