#
088fecfb |
| 27-Nov-2017 |
Mauro Carvalho Chehab <mchehab@s-opensource.com> |
Merge tag 'v4.15-rc1' into patchwork
Linux 4.15-rc1
* tag 'v4.15-rc1': (12179 commits) Linux 4.15-rc1 ARM: BUG if jumping to usermode address in kernel mode m68k/macboing: Fix missed timer ca
Merge tag 'v4.15-rc1' into patchwork
Linux 4.15-rc1
* tag 'v4.15-rc1': (12179 commits) Linux 4.15-rc1 ARM: BUG if jumping to usermode address in kernel mode m68k/macboing: Fix missed timer callback assignment afs: remove redundant assignment of dvnode to itself afs: cell: Remove unnecessary code in afs_lookup_cell afs: Fix signal handling in some file ops afs: Fix some dentry handling in dir ops and missing key_puts afs: Make afs_write_begin() avoid writing to a page that's being stored sched/debug: Fix task state recording/printout x86/decoder: Add new TEST instruction pattern x86/PCI: Remove unused HyperTransport interrupt support x86/umip: Fix insn_get_code_seg_params()'s return value x86/boot/KASLR: Remove unused variable genirq/matrix: Make - vs ?: Precedence explicit irqchip/imgpdc: Use resource_size function on resource object irqchip/qcom: Fix u32 comparison with value less than zero ipvlan: Fix insufficient skb linear check for ipv6 icmp ipvlan: Fix insufficient skb linear check for arp geneve: only configure or fill UDP_ZERO_CSUM6_RX/TX info when CONFIG_IPV6 net: dsa: bcm_sf2: Clear IDDQ_GLOBAL_PWR bit for PHY ...
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#
1420edf7 |
| 27-Nov-2017 |
Daniel Vetter <daniel.vetter@ffwll.ch> |
Merge tag 'v4.15-rc1' into drm-misc-fixes
Linux 4.15-rc1
Pull in the merge window to resync. Dave didn't get his -fixes pull landed in time, and now there's another rockchip fix pending, so fast-fo
Merge tag 'v4.15-rc1' into drm-misc-fixes
Linux 4.15-rc1
Pull in the merge window to resync. Dave didn't get his -fixes pull landed in time, and now there's another rockchip fix pending, so fast-forwarding isn't possible, hence backmerge.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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#
866c9b94 |
| 23-Nov-2017 |
Thomas Gleixner <tglx@linutronix.de> |
Merge tag 'for-linus-timers-conversion-final-v4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into timers/urgent
Pull the last batch of manual timer conversions from Kees Cook:
Merge tag 'for-linus-timers-conversion-final-v4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux into timers/urgent
Pull the last batch of manual timer conversions from Kees Cook:
- final batch of "non trivial" timer conversions (multi-tree dependencies, things Coccinelle couldn't handle, etc).
- treewide conversions via Coccinelle, in 4 steps: - DEFINE_TIMER() functions converted to struct timer_list * argument - init_timer() -> setup_timer() - setup_timer() -> timer_setup() - setup_timer() -> timer_setup() (with a single embedded structure)
- deprecated timer API removals (init_timer(), setup_*timer())
- finalization of new API (remove global casts)
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#
70c5f936 |
| 21-Nov-2017 |
Daniel Vetter <daniel.vetter@ffwll.ch> |
Merge airlied/drm-next into drm-misc-next
Bake in the conflict between the drm_print.h extraction and the addition of DRM_DEBUG_LEASES since we lost it a few too many times.
Also fix a new use of d
Merge airlied/drm-next into drm-misc-next
Bake in the conflict between the drm_print.h extraction and the addition of DRM_DEBUG_LEASES since we lost it a few too many times.
Also fix a new use of drm_plane_helper_check_state in msm to follow Ville's conversion in
commit a01cb8ba3f6282934cff65e89ab36b18b14cbe27 Author: Ville Syrjälä <ville.syrjala@linux.intel.com> Date: Wed Nov 1 22:16:19 2017 +0200
drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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#
e60e1ee6 |
| 16-Nov-2017 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'drm-for-v4.15' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie: "This is the main drm pull request for v4.15.
Core: - Atomic object lifetime fixes
Merge tag 'drm-for-v4.15' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie: "This is the main drm pull request for v4.15.
Core: - Atomic object lifetime fixes - Atomic iterator improvements - Sparse/smatch fixes - Legacy kms ioctls to be interruptible - EDID override improvements - fb/gem helper cleanups - Simple outreachy patches - Documentation improvements - Fix dma-buf rcu races - DRM mode object leasing for improving VR use cases. - vgaarb improvements for non-x86 platforms.
New driver: - tve200: Faraday Technology TVE200 block.
This "TV Encoder" encodes a ITU-T BT.656 stream and can be found in the StorLink SL3516 (later Cortina Systems CS3516) as well as the Grain Media GM8180.
New bridges: - SiI9234 support
New panels: - S6E63J0X03, OTM8009A, Seiko 43WVF1G, 7" rpi touch panel, Toshiba LT089AC19000, Innolux AT043TN24
i915: - Remove Coffeelake from alpha support - Cannonlake workarounds - Infoframe refactoring for DisplayPort - VBT updates - DisplayPort vswing/emph/buffer translation refactoring - CCS fixes - Restore GPU clock boost on missed vblanks - Scatter list updates for userptr allocations - Gen9+ transition watermarks - Display IPC (Isochronous Priority Control) - Private PAT management - GVT: improved error handling and pci config sanitizing - Execlist refactoring - Transparent Huge Page support - User defined priorities support - HuC/GuC firmware refactoring - DP MST fixes - eDP power sequencing fixes - Use RCU instead of stop_machine - PSR state tracking support - Eviction fixes - BDW DP aux channel timeout fixes - LSPCON fixes - Cannonlake PLL fixes
amdgpu: - Per VM BO support - Powerplay cleanups - CI powerplay support - PASID mgr for kfd - SR-IOV fixes - initial GPU reset for vega10 - Prime mmap support - TTM updates - Clock query interface for Raven - Fence to handle ioctl - UVD encode ring support on Polaris - Transparent huge page DMA support - Compute LRU pipe tweaks - BO flag to allow buffers to opt out of implicit sync - CTX priority setting API - VRAM lost infrastructure plumbing
qxl: - fix flicker since atomic rework
amdkfd: - Further improvements from internal AMD tree - Usermode events - Drop radeon support
nouveau: - Pascal temperature sensor support - Improved BAR2 handling - MMU rework to support Pascal MMU
exynos: - Improved HDMI/mixer support - HDMI audio interface support
tegra: - Prep work for tegra186 - Cleanup/fixes
msm: - Preemption support for a5xx - Display fixes for 8x96 (snapdragon 820) - Async cursor plane fixes - FW loading rework - GPU debugging improvements
vc4: - Prep for DSI panels - fix T-format tiling scanout - New madvise ioctl
Rockchip: - LVDS support
omapdrm: - omap4 HDMI CEC support
etnaviv: - GPU performance counters groundwork
sun4i: - refactor driver load + TCON backend - HDMI improvements - A31 support - Misc fixes
udl: - Probe/EDID read fixes.
tilcdc: - Misc fixes.
pl111: - Support more variants
adv7511: - Improve EDID handling. - HDMI CEC support
sii8620: - Add remote control support"
* tag 'drm-for-v4.15' of git://people.freedesktop.org/~airlied/linux: (1480 commits) drm/rockchip: analogix_dp: Use mutex rather than spinlock drm/mode_object: fix documentation for object lookups. drm/i915: Reorder context-close to avoid calling i915_vma_close() under RCU drm/i915: Move init_clock_gating() back to where it was drm/i915: Prune the reservation shared fence array drm/i915: Idle the GPU before shinking everything drm/i915: Lock llist_del_first() vs llist_del_all() drm/i915: Calculate ironlake intermediate watermarks correctly, v2. drm/i915: Disable lazy PPGTT page table optimization for vGPU drm/i915/execlists: Remove the priority "optimisation" drm/i915: Filter out spurious execlists context-switch interrupts drm/amdgpu: use irq-safe lock for kiq->ring_lock drm/amdgpu: bypass lru touch for KIQ ring submission drm/amdgpu: Potential uninitialized variable in amdgpu_vm_update_directories() drm/amdgpu: potential uninitialized variable in amdgpu_vce_ring_parse_cs() drm/amd/powerplay: initialize a variable before using it drm/amd/powerplay: suppress KASAN out of bounds warning in vega10_populate_all_memory_levels drm/amd/amdgpu: fix evicted VRAM bo adjudgement condition drm/vblank: Tune drm_crtc_accurate_vblank_count() WARN down to a debug drm/rockchip: add CONFIG_OF dependency for lvds ...
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Revision tags: v4.14, v4.14-rc8, v4.14-rc7, v4.14-rc6 |
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#
526b96c4 |
| 18-Oct-2017 |
Jani Nikula <jani.nikula@intel.com> |
Merge drm-upstream/drm-next into drm-intel-next-queued
Needed for timer_setup() and drm_dev_{get,put}() conversions in i915.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
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#
bd21a37d |
| 17-Oct-2017 |
Dave Airlie <airlied@redhat.com> |
Merge remote-tracking branch 'pfdo/drm-next' into drm-next
Pull in drm-next for the object find API changes.
Fix the one place the API crashes.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Revision tags: v4.14-rc5 |
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#
787e1b74 |
| 14-Oct-2017 |
Dave Airlie <airlied@redhat.com> |
Merge branch 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux into drm-next
Most notable addition this time is the support for the GPU performance counters by Christian. This has been in t
Merge branch 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux into drm-next
Most notable addition this time is the support for the GPU performance counters by Christian. This has been in the making for some time and it has matured a lot. Since this is adding UAPI, the corresponding WIP userspace can be found at [1] mesa/libdrm repos. I expect that Christian sends out the final userspace patches for this once you have pulled the kernel bits.
Philipp optimized the probe path, so etnaviv gets out of the way for systems that want to boot real quick.
I've done mostly cleanups, disentangling etnaviv from the IOMMU API, with some MMUv1 optimizations on the way.
* 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux: (36 commits) drm/etnaviv: remove unnecessary clock stabilization delay drm/etnaviv: reduce reset delay drm/etnaviv: remove unused function etnaviv_gem_new drm/etnaviv: remove stale comment drm/etnaviv: submit supports performance monitor requests drm/etnaviv: enable debug registers on demand drm/etnaviv: need to disable clock gating when doing profiling drm/etnaviv: add MC perf domain drm/etnaviv: add TX perf domain drm/etnaviv: add RA perf domain drm/etnaviv: add SE perf domain drm/etnaviv: add PA perf domain drm/etnaviv: add SH perf domain drm/etnaviv: add PE perf domain drm/etnaviv: add HI perf domain drm/etnaviv: use 'sync points' for performance monitor requests drm/etnaviv: clear alloced event drm/etnaviv: add 'sync point' support drm/etnaviv: add performance monitor request processing drm/etnaviv: copy pmrs from userspace ...
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Revision tags: v4.14-rc4, v4.14-rc3, v4.14-rc2 |
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#
4fc3e66a |
| 24-Sep-2017 |
Christian Gmeiner <christian.gmeiner@gmail.com> |
drm/etnaviv: extend etnaviv_gpu_cmdbuf_new(..) with nr_pmrs
This commits extends etnaviv_gpu_cmdbuf_new(..) to define the number of struct etnaviv_perfmon elements gets used.
Changes from v1 -> v2:
drm/etnaviv: extend etnaviv_gpu_cmdbuf_new(..) with nr_pmrs
This commits extends etnaviv_gpu_cmdbuf_new(..) to define the number of struct etnaviv_perfmon elements gets used.
Changes from v1 -> v2: - make use of goto as requested by Lucas
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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#
8d3d56ce |
| 24-Sep-2017 |
Christian Gmeiner <christian.gmeiner@gmail.com> |
drm/etnaviv: add internal representation of perfmon_request
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
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Revision tags: v4.14-rc1, v4.13, v4.13-rc7, v4.13-rc6, v4.13-rc5, v4.13-rc4, v4.13-rc3, v4.13-rc2, v4.13-rc1, v4.12, v4.12-rc7, v4.12-rc6, v4.12-rc5, v4.12-rc4, v4.12-rc3, v4.12-rc2, v4.12-rc1 |
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#
0337966d |
| 02-May-2017 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge branch 'next' into for-linus
Prepare input updates for 4.12 merge window.
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#
4d6ca227 |
| 02-May-2017 |
Jiri Kosina <jkosina@suse.cz> |
Merge branch 'for-4.12/asus' into for-linus
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Revision tags: v4.11 |
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#
9095bf25 |
| 25-Apr-2017 |
Mark Brown <broonie@kernel.org> |
Merge tag 'v4.11-rc1' into regulator-arizona
Linux 4.11-rc1
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Revision tags: v4.11-rc8, v4.11-rc7, v4.11-rc6 |
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#
3a374715 |
| 06-Apr-2017 |
Mark Brown <broonie@kernel.org> |
Merge branch 'fix/rcar' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-rcar
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#
03b22057 |
| 03-Apr-2017 |
Dmitry Torokhov <dmitry.torokhov@gmail.com> |
Merge tag 'v4.11-rc5' into next
Sync up with mainline to bring in changes to input subsystem merged through other trees.
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Revision tags: v4.11-rc5, v4.11-rc4, v4.11-rc3, v4.11-rc2 |
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#
9fe64e15 |
| 07-Mar-2017 |
Jonathan Corbet <corbet@lwn.net> |
Merge tag 'v4.11-rc1' into docs-next
Linux 4.11-rc1
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#
e24bce8f |
| 06-Mar-2017 |
Tony Lindgren <tony@atomide.com> |
Merge tag 'v4.11-rc1' into omap-for-v4.11/fixes
Linux 4.11-rc1
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#
700ea5e0 |
| 06-Mar-2017 |
Mauro Carvalho Chehab <mchehab@s-opensource.com> |
Merge tag 'v4.11-rc1' into patchwork
Linux 4.11-rc1
* tag 'v4.11-rc1': (10730 commits) Linux 4.11-rc1 strparser: destroy workqueue on module exit Documentation/sphinx: fix primary_domain conf
Merge tag 'v4.11-rc1' into patchwork
Linux 4.11-rc1
* tag 'v4.11-rc1': (10730 commits) Linux 4.11-rc1 strparser: destroy workqueue on module exit Documentation/sphinx: fix primary_domain configuration docs: Fix htmldocs build failure doc/ko_KR/memory-barriers: Update control-dependencies section pcieaer doc: update the link Documentation: Update path to sysrq.txt sfc: fix IPID endianness in TSOv2 sfc: avoid max() in array size rds: remove unnecessary returned value check rxrpc: Fix potential NULL-pointer exception nfp: correct DMA direction in XDP DMA sync nfp: don't tell FW about the reserved buffer space net: ethernet: bgmac: mac address change bug net: ethernet: bgmac: init sequence bug xen-netback: don't vfree() queues under spinlock xen-netback: keep a local pointer for vif in backend_disconnect() netfilter: nf_tables: don't call nfnetlink_set_err() if nfnetlink_send() fails netfilter: nft_set_rbtree: incorrect assumption on lower interval lookups netfilter: nf_conntrack_sip: fix wrong memory initialisation ...
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Revision tags: v4.11-rc1 |
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#
0871d5a6 |
| 01-Mar-2017 |
Ingo Molnar <mingo@kernel.org> |
Merge branch 'linus' into WIP.x86/boot, to fix up conflicts and to pick up updates
Conflicts: arch/x86/xen/setup.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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#
ef96152e |
| 24-Feb-2017 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge tag 'drm-for-v4.11-less-shouty' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie: "This is the main drm pull request for v4.11.
Nothing too major, the tinyd
Merge tag 'drm-for-v4.11-less-shouty' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie: "This is the main drm pull request for v4.11.
Nothing too major, the tinydrm and mmu-less support should make writing smaller drivers easier for some of the simpler platforms, and there are a bunch of documentation updates.
Intel grew displayport MST audio support which is hopefully useful to people, and FBC is on by default for GEN9+ (so people know where to look for regressions). AMDGPU has a lot of fixes that would like new firmware files installed for some GPUs.
Other than that it's pretty scattered all over.
I may have a follow up pull request as I know BenH has a bunch of AST rework and fixes and I'd like to get those in once they've been tested by AST, and I've got at least one pull request I'm just trying to get the author to fix up.
Core: - drm_mm reworked - Connector list locking and iterators - Documentation updates - Format handling rework - MMU-less support for fbdev helpers - drm_crtc_from_index helper - Core CRC API - Remove drm_framebuffer_unregister_private - Debugfs cleanup - EDID/Infoframe fixes - Release callback - Tinydrm support (smaller drivers for simple hw)
panel: - Add support for some new simple panels
i915: - FBC by default for gen9+ - Shared dpll cleanups and docs - GEN8 powerdomain cleanup - DMC support on GLK - DP MST audio support - HuC loading support - GVT init ordering fixes - GVT IOMMU workaround fix
amdgpu/radeon: - Power/clockgating improvements - Preliminary SR-IOV support - TTM buffer priority and eviction fixes - SI DPM quirks removed due to firmware fixes - Powerplay improvements - VCE/UVD powergating fixes - Cleanup SI GFX code to match CI/VI - Support for > 2 displays on 3/5 crtc asics - SI headless fixes
nouveau: - Rework securre boot code in prep for GP10x secure boot - Channel recovery improvements - Initial power budget code - MMU rework preperation
vmwgfx: - Bunch of fixes and cleanups
exynos: - Runtime PM support for MIC driver - Cleanups to use atomic helpers - UHD Support for TM2/TM2E boards - Trigger mode fix for Rinato board
etnaviv: - Shader performance fix - Command stream validator fixes - Command buffer suballocator
rockchip: - CDN DisplayPort support - IOMMU support for arm64 platform
imx-drm: - Fix i.MX5 TV encoder probing - Remove lower fb size limits
msm: - Support for HW cursor on MDP5 devices - DSI encoder cleanup - GPU DT bindings cleanup
sti: - stih410 cleanups - Create fbdev at binding - HQVDP fixes - Remove stih416 chip functionality - DVI/HDMI mode selection fixes - FPS statistic reporting
omapdrm: - IRQ code cleanup
dwi-hdmi bridge: - Cleanups and fixes
adv-bridge: - Updates for nexus
sii8520 bridge: - Add interlace mode support - Rework HDMI and lots of fixes
qxl: - probing/teardown cleanups
ZTE drm: - HDMI audio via SPDIF interface - Video Layer overlay plane support - Add TV encoder output device
atmel-hlcdc: - Rework fbdev creation logic
tegra: - OF node fix
fsl-dcu: - Minor fixes
mali-dp: - Assorted fixes
sunxi: - Minor fix"
[ This was the "fixed" pull, that still had build warnings due to people not even having build tested the result. I'm not a happy camper
I've fixed the things I noticed up in this merge. - Linus ]
* tag 'drm-for-v4.11-less-shouty' of git://people.freedesktop.org/~airlied/linux: (1177 commits) lib/Kconfig: make PRIME_NUMBERS not user selectable drm/tinydrm: helpers: Properly fix backlight dependency drm/tinydrm: mipi-dbi: Fix field width specifier warning drm/tinydrm: mipi-dbi: Silence: ‘cmd’ may be used uninitialized drm/sti: fix build warnings in sti_drv.c and sti_vtg.c files drm/amd/powerplay: fix PSI feature on Polars12 drm/amdgpu: refuse to reserve io mem for split VRAM buffers drm/ttm: fix use-after-free races in vm fault handling drm/tinydrm: Add support for Multi-Inno MI0283QT display dt-bindings: Add Multi-Inno MI0283QT binding dt-bindings: display/panel: Add common rotation property of: Add vendor prefix for Multi-Inno drm/tinydrm: Add MIPI DBI support drm/tinydrm: Add helper functions drm: Add DRM support for tiny LCD displays drm/amd/amdgpu: post card if there is real hw resetting performed drm/nouveau/tmr: provide backtrace when a timeout is hit drm/nouveau/pci/g92: Fix rearm drm/nouveau/drm/therm/fan: add a fallback if no fan control is specified in the vbios drm/nouveau/hwmon: expose power_max and power_crit ..
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Revision tags: v4.10, v4.10-rc8 |
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#
51a831a7 |
| 10-Feb-2017 |
Daniel Vetter <daniel.vetter@ffwll.ch> |
Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued
Chris Wilson needs the new drm_driver->release callback to make sure the shiny new dma-buf testcases don't oops the driver
Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued
Chris Wilson needs the new drm_driver->release callback to make sure the shiny new dma-buf testcases don't oops the driver on unload.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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Revision tags: v4.10-rc7 |
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#
17aad8a3 |
| 03-Feb-2017 |
Daniel Vetter <daniel.vetter@ffwll.ch> |
Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next
Yet another backmerge to get at latest etnaviv code, which is need for Chris' drm_mm patch.
Signed-off-by: Daniel Vetter <daniel.v
Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next
Yet another backmerge to get at latest etnaviv code, which is need for Chris' drm_mm patch.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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#
99743ae4 |
| 02-Feb-2017 |
Dave Airlie <airlied@redhat.com> |
Merge branch 'drm-etnaviv-next' of https://git.pengutronix.de/git/lst/linux into drm-next
It includes code cleanups from Bhumika and Liviu, a significant shader performance fix and additions to the
Merge branch 'drm-etnaviv-next' of https://git.pengutronix.de/git/lst/linux into drm-next
It includes code cleanups from Bhumika and Liviu, a significant shader performance fix and additions to the cmdstream validator from Wladimir and the addition of a cmdbuf suballocator by myself. The suballocator improves performance on all chips by reducing the CPU overhead of the kernel driver and side steps the GC3000 FE MMU flush erratum, now making the workarounds in IOVA allocation we had before unnecessary, which results in a nice cleanup of the code in that area.
* 'drm-etnaviv-next' of https://git.pengutronix.de/git/lst/linux: drm/etnaviv: Remove duplicate header file include Revert "drm/etnaviv: trick drm_mm into giving out a low IOVA" drm/etnaviv: add cmdbuf suballocator drm/etnaviv: get cmdbuf physical address through the cmdbuf abstraction drm/etnaviv: wire up iova handling in new cmdbuf abstraction drm/etnaviv: move cmdbuf de-/allocation into own file drm/etnaviv: always flush MMU TLBs on map/unmap drm/etnaviv: constify etnaviv_iommu_ops structures drm/etnaviv: set up initial PULSE_EATER register drm/etnaviv: add new GC3000 sensitive states
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Revision tags: v4.10-rc6, v4.10-rc5 |
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#
e66774dd |
| 16-Jan-2017 |
Lucas Stach <l.stach@pengutronix.de> |
drm/etnaviv: add cmdbuf suballocator
There are 3 big benefits to suballocating a single big DMA buffer for command submission:
1. Avoid hammering CMA. The old way of allocating and freeing a DMA
drm/etnaviv: add cmdbuf suballocator
There are 3 big benefits to suballocating a single big DMA buffer for command submission:
1. Avoid hammering CMA. The old way of allocating and freeing a DMA buffer for each submission was hitting some of the real slow pathes in CMA, as this allocator was not designed for a concurrent small buffers load.
2. Less TLB flushes on IOMMUv2. If a new command buffer is mapped into the GPU address space the MMU TLBs need to be flushed. By having one big buffer statically mapped to the GPU, a lot of those flushes can be avoided.
3. No funky workarounds for GC3000. The FE TLB flush on GC3000 isn't reliable. To work around that we tried to lay out the cmdbufs in the GPU address space in a way to avoid this issue. This hasn't always worked if the address space is crowded. A single statically mapped buffer avoids the erratum completely.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
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#
9912b4db |
| 16-Jan-2017 |
Lucas Stach <l.stach@pengutronix.de> |
drm/etnaviv: get cmdbuf physical address through the cmdbuf abstraction
Don't allow IOMMUv2 to peek directly into the cmdbuf, but get the needed PA through a dedicated function.
Signed-off-by: Luca
drm/etnaviv: get cmdbuf physical address through the cmdbuf abstraction
Don't allow IOMMUv2 to peek directly into the cmdbuf, but get the needed PA through a dedicated function.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
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