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2017-09-15Merge tag 'drm-fixes-for-v4.14-rc1' of ↵Linus Torvalds
git://people.freedesktop.org/~airlied/linux Pull drm AMD fixes from Dave Airlie: "Just had a single AMD fixes pull from Alex for rc1" * tag 'drm-fixes-for-v4.14-rc1' of git://people.freedesktop.org/~airlied/linux: drm/amdgpu: revert "fix deadlock of reservation between cs and gpu reset v2" drm/amdgpu: remove duplicate return statement drm/amdgpu: check memory allocation failure drm/amd/amdgpu: fix BANK_SELECT on Vega10 (v2) drm/amdgpu: inline amdgpu_ttm_do_bind again drm/amdgpu: fix amdgpu_ttm_bind drm/amdgpu: remove the GART copy hack drm/ttm:fix wrong decoding of bo_count drm/ttm: fix missing inc bo_count drm/amdgpu: set sched_hw_submission higher for KIQ (v3) drm/amdgpu: move default gart size setting into gmc modules drm/amdgpu: refine default gart size drm/amd/powerplay: ACG frequency added in PPTable drm/amdgpu: discard commands of killed processes drm/amdgpu: fix and cleanup shadow handling drm/amdgpu: add automatic per asic settings for gart_size drm/amdgpu/gfx8: fix spelling typo in mqd allocation drm/amd/powerplay: unhalt mec after loading drm/amdgpu/virtual_dce: Virtual display doesn't support disable vblank immediately drm/amdgpu: Fix huge page updates with CPU
2017-09-14Merge branch 'dmi-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging Pull dmi update from Jean Delvare: "Mark all struct dmi_system_id instances const" * 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: dmi: Mark all struct dmi_system_id instances const
2017-09-14dmi: Mark all struct dmi_system_id instances constChristoph Hellwig
... and __initconst if applicable. Based on similar work for an older kernel in the Grsecurity patch. [JD: fix toshiba-wmi build] [JD: add htcpen] [JD: move __initconst where checkscript wants it] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jean Delvare <jdelvare@suse.de>
2017-09-13mm: treewide: remove GFP_TEMPORARY allocation flagMichal Hocko
GFP_TEMPORARY was introduced by commit e12ba74d8ff3 ("Group short-lived and reclaimable kernel allocations") along with __GFP_RECLAIMABLE. It's primary motivation was to allow users to tell that an allocation is short lived and so the allocator can try to place such allocations close together and prevent long term fragmentation. As much as this sounds like a reasonable semantic it becomes much less clear when to use the highlevel GFP_TEMPORARY allocation flag. How long is temporary? Can the context holding that memory sleep? Can it take locks? It seems there is no good answer for those questions. The current implementation of GFP_TEMPORARY is basically GFP_KERNEL | __GFP_RECLAIMABLE which in itself is tricky because basically none of the existing caller provide a way to reclaim the allocated memory. So this is rather misleading and hard to evaluate for any benefits. I have checked some random users and none of them has added the flag with a specific justification. I suspect most of them just copied from other existing users and others just thought it might be a good idea to use without any measuring. This suggests that GFP_TEMPORARY just motivates for cargo cult usage without any reasoning. I believe that our gfp flags are quite complex already and especially those with highlevel semantic should be clearly defined to prevent from confusion and abuse. Therefore I propose dropping GFP_TEMPORARY and replace all existing users to simply use GFP_KERNEL. Please note that SLAB users with shrinkers will still get __GFP_RECLAIMABLE heuristic and so they will be placed properly for memory fragmentation prevention. I can see reasons we might want some gfp flag to reflect shorterm allocations but I propose starting from a clear semantic definition and only then add users with proper justification. This was been brought up before LSF this year by Matthew [1] and it turned out that GFP_TEMPORARY really doesn't have a clear semantic. It seems to be a heuristic without any measured advantage for most (if not all) its current users. The follow up discussion has revealed that opinions on what might be temporary allocation differ a lot between developers. So rather than trying to tweak existing users into a semantic which they haven't expected I propose to simply remove the flag and start from scratch if we really need a semantic for short term allocations. [1] http://lkml.kernel.org/r/20170118054945.GD18349@bombadil.infradead.org [akpm@linux-foundation.org: fix typo] [akpm@linux-foundation.org: coding-style fixes] [sfr@canb.auug.org.au: drm/i915: fix up] Link: http://lkml.kernel.org/r/20170816144703.378d4f4d@canb.auug.org.au Link: http://lkml.kernel.org/r/20170728091904.14627-1-mhocko@kernel.org Signed-off-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Mel Gorman <mgorman@suse.de> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Matthew Wilcox <willy@infradead.org> Cc: Neil Brown <neilb@suse.de> Cc: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-09-13Merge branch 'drm-next-4.14' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next A few fixes for 4.14. Nothing too major.
2017-09-12drm/amdgpu: revert "fix deadlock of reservation between cs and gpu reset v2"Christian König
This reverts commit 10e709cb296c98424c03408d23e3addeddcd4088. The patch doesn't work at all: 1. The CS can still be blocked because of amdgpu_ctx_add_fence(). 2. The order of submission isn't correct any more. 3. We could end up using freed up memory because we now drop the ctx reference to early. This needs to be fixed cleanly by doing the context handling after the BO handling, but this is a larger task just avoid the obvious crashes for now. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Monk Liu monk.liu@amd.com Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-09-09Merge branch 'i2c/for-4.14' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: - new drivers for Spreadtrum I2C, Intel Cherry Trail Whiskey Cove SMBUS - quite some driver updates - cleanups for the i2c-mux subsystem - some subsystem-wide constification - further cleanup of include/linux/i2c * 'i2c/for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (50 commits) i2c: sprd: Fix undefined reference errors i2c: nomadik: constify amba_id i2c: versatile: Make i2c_algo_bit_data const i2c: busses: make i2c_adapter_quirks const i2c: busses: make i2c_adapter const i2c: busses: make i2c_algorithm const i2c: Add Spreadtrum I2C controller driver dt-bindings: i2c: Add Spreadtrum I2C controller documentation i2c-cht-wc: make cht_wc_i2c_adap_driver static MAINTAINERS: Add entry for drivers/i2c/busses/i2c-cht-wc.c i2c: aspeed: Retain delay/setup/hold values when configuring bus frequency dt-bindings: i2c: eeprom: Document vendor to be used and deprecated ones i2c: i801: Restore the presence state of P2SB PCI device after reading BAR MAINTAINERS: drop entry for Blackfin I2C and Sonic's email blackfin: merge the two TWI header files i2c: davinci: Preserve return value of devm_clk_get i2c: mediatek: Add i2c compatible for MediaTek MT7622 dt-bindings: i2c: Add MediaTek MT7622 i2c binding dt-bindings: i2c: modify information formats i2c: mux: i2c-arb-gpio-challenge: allow compiling w/o OF support ...
2017-09-08lib/interval_tree: fast overlap detectionDavidlohr Bueso
Allow interval trees to quickly check for overlaps to avoid unnecesary tree lookups in interval_tree_iter_first(). As of this patch, all interval tree flavors will require using a 'rb_root_cached' such that we can have the leftmost node easily available. While most users will make use of this feature, those with special functions (in addition to the generic insert, delete, search calls) will avoid using the cached option as they can do funky things with insertions -- for example, vma_interval_tree_insert_after(). [jglisse@redhat.com: fix deadlock from typo vm_lock_anon_vma()] Link: http://lkml.kernel.org/r/20170808225719.20723-1-jglisse@redhat.com Link: http://lkml.kernel.org/r/20170719014603.19029-12-dave@stgolabs.net Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Doug Ledford <dledford@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Cc: David Airlie <airlied@linux.ie> Cc: Jason Wang <jasowang@redhat.com> Cc: Christian Benvenuti <benve@cisco.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-09-07Merge tag 'gcc-plugins-v4.14-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull gcc plugins update from Kees Cook: "This finishes the porting work on randstruct, and introduces a new option to structleak, both noted below: - For the randstruct plugin, enable automatic randomization of structures that are entirely function pointers (along with a couple designated initializer fixes). - For the structleak plugin, provide an option to perform zeroing initialization of all otherwise uninitialized stack variables that are passed by reference (Ard Biesheuvel)" * tag 'gcc-plugins-v4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: gcc-plugins: structleak: add option to init all vars used as byref args randstruct: Enable function pointer struct detection drivers/net/wan/z85230.c: Use designated initializers drm/amd/powerplay: rv: Use designated initializers
2017-09-07Merge tag 'drm-intel-next-fixes-2017-09-07' of ↵Linus Torvalds
git://anongit.freedesktop.org/git/drm-intel Pull i916 drm fixes from Rodrigo Vivi: "Since Dave is on paternity leave we are sending drm/i915 fixes for v4.14-rc1 directly to you as he had asked us to do. The most critical ones are the GPU reset fix for gen2-4 and GVT fix for a regression that is blocking gvt init to work on your tree. The rest is general fixes for patches coming from drm-next" Acked-by: Dave Airlie <airlied@redhat.com> * tag 'drm-intel-next-fixes-2017-09-07' of git://anongit.freedesktop.org/git/drm-intel: drm/i915: Re-enable GTT following a device reset drm/i915: Annotate user relocs with __user drm/i915: Silence sparse by using gfp_t drm/i915: Add __rcu to radix tree slot pointer drm/i915: Fix the missing PPAT cache attributes on CNL drm/i915/gvt: Remove one duplicated MMIO drm/i915: Fix enum pipe vs. enum transcoder for the PCH transcoder drm/i915: Make i2c lock ops static drm/i915: Make i9xx_load_ycbcr_conversion_matrix() static drm/i915/edp: Increase T12 panel delay to 900 ms to fix DP AUX CH timeouts drm/i915: Ignore duplicate VMA stored within the per-object handle LUT drm/i915: Skip fence alignemnt check for the CCS plane drm/i915: Treat fb->offsets[] as a raw byte offset instead of a linear offset drm/i915: Always wake the device to flush the GTT drm/i915: Recreate vmapping even when the object is pinned drm/i915: Quietly cancel FBC activation if CRTC is turned off before worker
2017-09-06drm/i915: wire up shrinkctl->nr_scannedChris Wilson
shrink_slab() allows us to report back the number of objects we successfully scanned (out of the target shrinkctl->nr_to_scan). As report the number of pages owned by each GEM object as a separate item to the shrinker, we cannot precisely control the number of shrinker objects we scan on each pass; and indeed may free more than requested. If we fail to tell the shrinker about the number of objects we process, it will continue to hold a grudge against us as any objects left unscanned are added to the next reclaim -- and so we will keep on "unfairly" shrinking our own slab in comparison to other slabs. Link: http://lkml.kernel.org/r/20170822135325.9191-2-chris@chris-wilson.co.uk Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Michal Hocko <mhocko@suse.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Hillf Danton <hillf.zj@alibaba-inc.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Shaohua Li <shli@fb.com> Cc: Christoph Lameter <cl@linux.com> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Pekka Enberg <penberg@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-09-06Merge tag 'gvt-fixes-2017-09-06' of https://github.com/01org/gvt-linux into ↵Rodrigo Vivi
drm-intel-next-fixes gvt-fixes-2017-09-06 - regression fix for gvt init failure from Jianjun Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170906035924.2225krr6snv2duvq@zhen-hp.sh.intel.com
2017-09-06drm/i915: Re-enable GTT following a device resetChris Wilson
Ville Syrjälä spotted that PGETBL_CTL was losing its enable bit upon a reset. That was causing the display to show garbage on his 945gm. On my i915gm the effect was far more severe; re-enabling the display following the reset without PGETBL_CTL being enabled lead to an immediate hard hang. We do have a routine to re-enable PGETBL_CTL which is applicable to gen2-4, although on gen4 it is documented that a graphics reset doesn't alter the register (no such wording is given for gen3) and should be safe to call to punch back in the enable bit. However, that leaves the question of whether we need to completely re-initialise the register and the rest of the GSM. For g33/pnv/gen4+, where we do have a configurable page table, its contents do seem to be kept, and so we should be able to recover without having to reinitialise the GTT from scratch (as prior to g33, that register is configured by the BIOS and we leave alone except for the enable bit). This appears to have been broken by commit 5fbd0418eef2 ("drm/i915: Re-enable GGTT earlier during resume on pre-gen6 platforms"), which moved the intel_enable_gtt() from i915_gem_init_hw() (also used by reset) to add it earlier during hw init and resume, missing the reset path. v2: Find the culprit, rearrange ggtt_enable to be before gem_init_hw to match init/resume Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Fixes: 5fbd0418eef2 ("drm/i915: Re-enable GGTT earlier during resume on pre-gen6 platforms") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101852 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Daniel Vetter <daniel@ffwll.ch> Reviewed-by: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20170906111405.27110-1-chris@chris-wilson.co.uk Tested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (cherry picked from commit 0db8c961209153498fe7e279b8f0d3deb81808f0) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-09-06drm/i915: Annotate user relocs with __userVille Syrjälä
Add the missing __user to the urelocs cast to fix the following sparse warning: i915_gem_execbuffer.c:1541:47: warning: cast removes address space of expression i915_gem_execbuffer.c:1541:62: warning: incorrect type in argument 2 (different address spaces) i915_gem_execbuffer.c:1541:62: expected void const [noderef] <asn:1>*from i915_gem_execbuffer.c:1541:62: got char * Cc: Chris Wilson <chris@chris-wilson.co.uk> Fixes: 2889caa92321 ("drm/i915: Eliminate lots of iterations over the execobjects array") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170901165434.24636-1-ville.syrjala@linux.intel.com Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> #irc (cherry picked from commit 908a610557f4d8b46a0f82c01e31b30f5c998580) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-09-05drm/i915: Silence sparse by using gfp_tChris Wilson
Sparse enforces that GFP flags are only manipulated inside gfp_t locals. Fixes: 4d470f7359c4 ("drm/i915: Avoid undefined behaviour of "u32 >> 32"") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170901145729.21363-1-chris@chris-wilson.co.uk Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (cherry picked from commit 0d95c883bab5c5507fac3c34bc506f735971a2ee) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-09-05drm/i915: Add __rcu to radix tree slot pointerVille Syrjälä
radix_tree_for_each_slot() wants an __rcu annotated pointer for the slot. So let's add the annotation. Fixes the following sparse warnings: i915_gem.c:2217:9: warning: incorrect type in assignment (different address spaces) i915_gem.c:2217:9: expected void **slot i915_gem.c:2217:9: got void [noderef] <asn:4>** i915_gem.c:2217:9: warning: incorrect type in assignment (different address spaces) i915_gem.c:2217:9: expected void **slot i915_gem.c:2217:9: got void [noderef] <asn:4>** i915_gem.c:2217:9: warning: incorrect type in argument 1 (different address spaces) i915_gem.c:2217:9: expected void [noderef] <asn:4>**slot i915_gem.c:2217:9: got void **slot i915_gem.c:2217:9: warning: incorrect type in assignment (different address spaces) i915_gem.c:2217:9: expected void **slot i915_gem.c:2217:9: got void [noderef] <asn:4>** Cc: Chris Wilson <chris@chris-wilson.co.uk> Fixes: 96d776345277 ("drm/i915: Use a radixtree for random access to the object's backing storage") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170901171252.31025-1-ville.syrjala@linux.intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (cherry picked from commit c23aa71bcfe8a9d597ae5fe4c1527fac20254d0a) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-09-05drm/i915: Fix the missing PPAT cache attributes on CNLZhi Wang
Add back the GEN8_PPAT_WB cache attributes in cnl_setup_private_ppat(), which are missed on CNL. Fixes: 4e34935fcf69 ("drm/i915/cnl: Setup PAT Index.") Cc: Ben Widawsky <benjamin.widawsky@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Suggested-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Signed-off-by: Zhi Wang <zhi.a.wang@intel.com> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1504208177-27784-1-git-send-email-zhi.a.wang@intel.com (cherry picked from commit 6e31cdcfe17d8a25530924183d4a843602baebb1) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-09-05drm/i915/gvt: Remove one duplicated MMIOJian Jun Chen
Remove one duplicated MMIO GEN6_PCODE_MAILBOX. Duplicated MMIO will cause host GVT-g initialization failure. Fixes: 9c3a16c887f0 ("drm/i915/hsw+: Add support for multiple power well regs") Signed-off-by: Jian Jun Chen <jian.jun.chen@intel.com> Acked-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2017-09-04Merge branch 'x86-mm-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 mm changes from Ingo Molnar: "PCID support, 5-level paging support, Secure Memory Encryption support The main changes in this cycle are support for three new, complex hardware features of x86 CPUs: - Add 5-level paging support, which is a new hardware feature on upcoming Intel CPUs allowing up to 128 PB of virtual address space and 4 PB of physical RAM space - a 512-fold increase over the old limits. (Supercomputers of the future forecasting hurricanes on an ever warming planet can certainly make good use of more RAM.) Many of the necessary changes went upstream in previous cycles, v4.14 is the first kernel that can enable 5-level paging. This feature is activated via CONFIG_X86_5LEVEL=y - disabled by default. (By Kirill A. Shutemov) - Add 'encrypted memory' support, which is a new hardware feature on upcoming AMD CPUs ('Secure Memory Encryption', SME) allowing system RAM to be encrypted and decrypted (mostly) transparently by the CPU, with a little help from the kernel to transition to/from encrypted RAM. Such RAM should be more secure against various attacks like RAM access via the memory bus and should make the radio signature of memory bus traffic harder to intercept (and decrypt) as well. This feature is activated via CONFIG_AMD_MEM_ENCRYPT=y - disabled by default. (By Tom Lendacky) - Enable PCID optimized TLB flushing on newer Intel CPUs: PCID is a hardware feature that attaches an address space tag to TLB entries and thus allows to skip TLB flushing in many cases, even if we switch mm's. (By Andy Lutomirski) All three of these features were in the works for a long time, and it's coincidence of the three independent development paths that they are all enabled in v4.14 at once" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (65 commits) x86/mm: Enable RCU based page table freeing (CONFIG_HAVE_RCU_TABLE_FREE=y) x86/mm: Use pr_cont() in dump_pagetable() x86/mm: Fix SME encryption stack ptr handling kvm/x86: Avoid clearing the C-bit in rsvd_bits() x86/CPU: Align CR3 defines x86/mm, mm/hwpoison: Clear PRESENT bit for kernel 1:1 mappings of poison pages acpi, x86/mm: Remove encryption mask from ACPI page protection type x86/mm, kexec: Fix memory corruption with SME on successive kexecs x86/mm/pkeys: Fix typo in Documentation/x86/protection-keys.txt x86/mm/dump_pagetables: Speed up page tables dump for CONFIG_KASAN=y x86/mm: Implement PCID based optimization: try to preserve old TLB entries using PCID x86: Enable 5-level paging support via CONFIG_X86_5LEVEL=y x86/mm: Allow userspace have mappings above 47-bit x86/mm: Prepare to expose larger address space to userspace x86/mpx: Do not allow MPX if we have mappings above 47-bit x86/mm: Rename tasksize_32bit/64bit to task_size_32bit/64bit() x86/xen: Redefine XEN_ELFNOTE_INIT_P2M using PUD_SIZE * PTRS_PER_PUD x86/mm/dump_pagetables: Fix printout of p4d level x86/mm/dump_pagetables: Generalize address normalization x86/boot: Fix memremap() related build failure ...
2017-09-04Merge branch 'linus' into locking/core, to fix up conflictsIngo Molnar
Conflicts: mm/page_alloc.c Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-09-03Merge tag 'drm-for-v4.14' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm updates from Dave Airlie: "This is the main drm pull request for 4.14 merge window. I'm sending this early, as my continuing journey into fatherhood is occurring really soon now, I'm going to be mostly useless for the next couple of weeks, though I may be able to read email, I doubt I'll be doing much patch applications or git sending. If anything urgent pops up I've asked Daniel/Jani/Alex/Sean to try and direct stuff towards you. Outside drm changes: Some rcar-du updates that touch the V4L tree, all acks should be in place. It adds one export to the radix tree code for new i915 use case. There are some minor AGP cleanups (don't see that too often). Changes to the vbox driver in staging to avoid breaking compilation. Summary: core: - Atomic helper fixes - Atomic UAPI fixes - Add YCBCR 4:2:0 support - Drop set_busid hook - Refactor fb_helper locking - Remove a bunch of internal APIs - Add a bunch of better default handlers - Format modifier/blob plane property added - More internal header refactoring - Make more internal API names consistent - Enhanced syncobj APIs (wait/signal/reset/create signalled) bridge: - Add Synopsys Designware MIPI DSI host bridge driver tiny: - Add Pervasive Displays RePaper displays - Add support for LEGO MINDSTORMS EV3 LCD i915: - Lots of GEN10/CNL support patches - drm syncobj support - Skylake+ watermark refactoring - GVT vGPU 48-bit ppgtt support - GVT performance improvements - NOA change ioctl - CCS (color compression) scanout support - GPU reset improvements amdgpu: - Initial hugepage support - BO migration logic rework - Vega10 improvements - Powerplay fixes - Stop reprogramming the MC - Fixes for ACP audio on stoney - SR-IOV fixes/improvements - Command submission overhead improvements amdkfd: - Non-dGPU upstreaming patches - Scratch VA ioctl - Image tiling modes - Update PM4 headers for new firmware - Drop all BUG_ONs. nouveau: - GP108 modesetting support. - Disable MSI on big endian. vmwgfx: - Add fence fd support. msm: - Runtime PM improvements exynos: - NV12MT support - Refactor KMS drivers imx-drm: - Lock scanout channel to improve memory bw - Cleanups etnaviv: - GEM object population fixes tegra: - Prep work for Tegra186 support - PRIME mmap support sunxi: - HDMI support improvements - HDMI CEC support omapdrm: - HDMI hotplug IRQ support - Big driver cleanup - OMAP5 DSI support rcar-du: - vblank fixes - VSP1 updates arcgpu: - Minor fixes stm: - Add STM32 DSI controller driver dw_hdmi: - Add support for Rockchip RK3399 - HDMI CEC support atmel-hlcdc: - Add 8-bit color support vc4: - Atomic fixes - New ioctl to attach a label to a buffer object - HDMI CEC support - Allow userspace to dictate rendering order on submit ioctl" * tag 'drm-for-v4.14' of git://people.freedesktop.org/~airlied/linux: (1074 commits) drm/syncobj: Add a signal ioctl (v3) drm/syncobj: Add a reset ioctl (v3) drm/syncobj: Add a syncobj_array_find helper drm/syncobj: Allow wait for submit and signal behavior (v5) drm/syncobj: Add a CREATE_SIGNALED flag drm/syncobj: Add a callback mechanism for replace_fence (v3) drm/syncobj: add sync obj wait interface. (v8) i915: Use drm_syncobj_fence_get drm/syncobj: Add a race-free drm_syncobj_fence_get helper (v2) drm/syncobj: Rename fence_get to find_fence drm: kirin: Add mode_valid logic to avoid mode clocks we can't generate drm/vmwgfx: Bump the version for fence FD support drm/vmwgfx: Add export fence to file descriptor support drm/vmwgfx: Add support for imported Fence File Descriptor drm/vmwgfx: Prepare to support fence fd drm/vmwgfx: Fix incorrect command header offset at restart drm/vmwgfx: Support the NOP_ERROR command drm/vmwgfx: Restart command buffers after errors drm/vmwgfx: Move irq bottom half processing to threads drm/vmwgfx: Don't use drm_irq_[un]install ...
2017-09-01drm/i915: Fix enum pipe vs. enum transcoder for the PCH transcoderVille Syrjälä
Use enum pipe for PCH transcoders also in the FIFO underrun code. Fixes the following new sparse warnings: intel_fifo_underrun.c:340:49: warning: mixing different enum types intel_fifo_underrun.c:340:49: int enum pipe versus intel_fifo_underrun.c:340:49: int enum transcoder intel_fifo_underrun.c:344:49: warning: mixing different enum types intel_fifo_underrun.c:344:49: int enum pipe versus intel_fifo_underrun.c:344:49: int enum transcoder intel_fifo_underrun.c:397:57: warning: mixing different enum types intel_fifo_underrun.c:397:57: int enum pipe versus intel_fifo_underrun.c:397:57: int enum transcoder intel_fifo_underrun.c:398:17: warning: mixing different enum types intel_fifo_underrun.c:398:17: int enum pipe versus intel_fifo_underrun.c:398:17: int enum transcoder Cc: Matthias Kaehlcke <mka@chromium.org> Fixes: a21960339c8c ("drm/i915: Consistently use enum pipe for PCH transcoders") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170901143123.7590-3-ville.syrjala@linux.intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (cherry picked from commit 41c32e5da3ff3922490341a988b2a3ae46d0b6a8) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-09-01drm/i915: Make i2c lock ops staticVille Syrjälä
Make gmbus_lock_ops and proxy_lock_ops static to appease sparse intel_i2c.c:652:34: warning: symbol 'gmbus_lock_ops' was not declared. Should it be static? intel_sdvo.c:2981:34: warning: symbol 'proxy_lock_ops' was not declared. Should it be static? Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Fixes: a85066840d29 ("drm/i915: Rework sdvo proxy i2c locking") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170901143123.7590-2-ville.syrjala@linux.intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (cherry picked from commit 0db1aa424e3ee91fcb9d583edb30a933c64c5b88) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-09-01drm/i915: Make i9xx_load_ycbcr_conversion_matrix() staticVille Syrjälä
Make i9xx_load_ycbcr_conversion_matrix() static to appease sparse: intel_color.c:110:6: warning: symbol 'i9xx_load_ycbcr_conversion_matrix' was not declared. Should it be static? Cc: Shashank Sharma <shashank.sharma@intel.com> Fixes: 25edf91501b8 ("drm/i915: prepare csc unit for YCBCR420 output") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170901143123.7590-1-ville.syrjala@linux.intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (cherry picked from commit 0abd9976960a5c46b5cc49f2f53281774a8a4a3e) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-09-01drm/i915/edp: Increase T12 panel delay to 900 ms to fix DP AUX CH timeoutsManasi Navare
This patch fixes the DP AUX CH timeouts observed during CI runs causing CI Failures on a specific PCI device. This issue was fixed previously by adding a quirk but looks like we need to increase this delay even more in order to get rid all the DP AUX CH timeouts. Fixes: c99a259b4b5192ba ("drm/i915/edp: Add a T12 panel delay quirk to fix DP AUX CH timeouts") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101144 Signed-off-by: Manasi Navare <manasi.d.navare@intel.com> Cc: Clinton Taylor <clinton.a.taylor@intel.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Tomi Sarvela <tomi.p.sarvela@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1502823591-25310-1-git-send-email-manasi.d.navare@intel.com (cherry picked from commit e8f345e08d391827f2cba5d172af990cc7afb062) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-08-31drm/amdgpu: update to new mmu_notifier semanticJérôme Glisse
Calls to mmu_notifier_invalidate_page() were replaced by calls to mmu_notifier_invalidate_range() and are now bracketed by calls to mmu_notifier_invalidate_range_start()/end() Remove now useless invalidate_page callback. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Reviewed-by: Christian König <christian.koenig@amd.com> Cc: amd-gfx@lists.freedesktop.org Cc: Felix Kuehling <Felix.Kuehling@amd.com> Cc: Christian König <christian.koenig@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andrea Arcangeli <aarcange@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-08-30drm/i915: Ignore duplicate VMA stored within the per-object handle LUTChris Wilson
By using drm_gem_flink/drm_gem_open on an object using the same fd, it is possible for a client to create multiple handles pointing to the same object (tied to the same contexts and VMA), as exemplified by igt::gem_handle_to_libdrm_bo(). Since this duplication has been possible since forever, we cannot assume that the handle:(fpriv, object) is unique and so must handle the multiple users of a single VMA. v2: Added commentary noise. Testcase: igt/gem_close Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102355 Fixes: d1b48c1e7184 ("drm/i915: Replace execbuf vma ht with an idr") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170822110517.22277-3-chris@chris-wilson.co.uk Tested-by: Marta Lofstedt <marta.lofstedt@intel.com> Reviewed-by: Michał Winiarski <michal.winiarski@intel.com> (cherry-picked from commit 3ffff01749928ea5ffdae2cecad561898c3b0f71) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-08-30drm/i915: Skip fence alignemnt check for the CCS planeVille Syrjälä
The CCS won't have the same stride as the main surface anyway so trying to guard against the fence stride not matching the CCS stride is not sensible. Just skip the fence vs. fb alignment check for the aux plane. Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Jason Ekstrand <jason@jlekstrand.net> Cc: Daniel Stone <daniels@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170824191100.10949-3-ville.syrjala@linux.intel.com Reviewed-by: Ben Widawsky <ben@bwidawsk.net> Fixes: 2e2adb05736c ("drm/i915: Add render decompression support") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (cherry picked from commit 2ec4cf4057fcb98cb4cabdd57fa12357e438ae98) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-08-30drm/i915: Treat fb->offsets[] as a raw byte offset instead of a linear offsetVille Syrjälä
Userspace wants to treat fb->offsets[] as raw byte offsets into the gem bo. Adjust the kernel code to match. Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Jason Ekstrand <jason@jlekstrand.net> Cc: Daniel Stone <daniels@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170824191100.10949-2-ville.syrjala@linux.intel.com Acked-by: Ben Widawsky <ben@bwidawsk.net> Fixes: 2e2adb05736c ("drm/i915: Add render decompression support") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (cherry picked from commit 303ba6955499ef757ca5ddcc816e370cc7581cb5) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-08-30drm/i915: Always wake the device to flush the GTTChris Wilson
Since we hold the device wakeref when writing through the GTT (otherwise the writes would fail), we presumed that before the device sleeps those writes would naturally be flushed and that we wouldn't need our mmio read trick. However, that presumption seems false and a sleepy bxt seems to require us to always manually flush the GTT writes prior to direct access. Fixes: e2a2aa36a509 ("drm/i915: Check we have an wake device before flushing GTT writes") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170829192546.1087-1-chris@chris-wilson.co.uk (cherry picked from commit b69a784f5e2308d6360a76eceae450e96751f3e4) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-08-30drm/i915: Recreate vmapping even when the object is pinnedChris Wilson
Sometimes we know we are the only user of the bo, but since we take a protective pin_pages early on, an attempt to change the vmap on the object is denied because it is busy. i915_gem_object_pin_map() cannot tell from our single pin_count if the operation is safe. Instead we must pass that information down from the caller in the manner of I915_MAP_OVERRIDE. This issue has existed from the introduction of the mapping, but was never noticed as the only place where this conflict might happen is for cached kernel buffers (such as allocated by i915_gem_batch_pool_get()). Until recently there was only a single user (the cmdparser) so no conflicts ever occurred. However, we now use it to allocate batches for different operations (using MAP_WC on !llc for writes) in addition to the existing shadow batch (using MAP_WB for reads). We could either keep both mappings cached, or use a different write mechanism if we detect a MAP_WB already exists (i.e. clflush afterwards), but as we haven't seen this issue in the wild (it requires hitting the GPU reloc path in addition to the cmdparser) for simplicity just allow the mappings to be recreated. v2: Include the i915_MAP_OVERRIDE bit in the enum so the compiler knows about all the valid values. Fixes: 7dd4f6729f92 ("drm/i915: Async GPU relocation processing") Testcase: igt/gem_lut_handle # byt, completely by accident Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170828104631.8606-1-chris@chris-wilson.co.uk Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (cherry picked from commit a575c6761757232ea2c7dc9f370640754b90cc69) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-08-30drm/i915: Quietly cancel FBC activation if CRTC is turned off before workerChris Wilson
Since we use a worker to enable FBC on the CRTC, it is possible for the CRTC to be switched off before we run. In this case, the CRTC will not allow us to wait upon a vblank, so remove the DRM_ERROR as this is very much expected. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102410 Fixes: ca18d51d77eb ("drm/i915/fbc: wait for a vblank instead of 50ms when enabling") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20170825150215.19236-1-chris@chris-wilson.co.uk Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> (cherry picked from commit 908b6e6e8ab4c1e0c3783be4c4b437ac6fa374ea) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2017-08-30Merge branch 'drm-vmwgfx-fixes' of ↵Dave Airlie
git://people.freedesktop.org/~syeh/repos_linux into drm-fixes Single vmwgfx fix. * 'drm-vmwgfx-fixes' of git://people.freedesktop.org/~syeh/repos_linux: drm/vmwgfx: Fix F26 Wayland screen update issue
2017-08-29drm/vmwgfx: Fix F26 Wayland screen update issueSinclair Yeh
vmwgfx currently cannot support non-blocking commit because when vmw_*_crtc_page_flip is called, drm_atomic_nonblocking_commit() schedules the update on a thread. This means vmw_*_crtc_page_flip cannot rely on the new surface being bound before the subsequent dirty and flush operations happen. Cc: <stable@vger.kernel.org> # 4.12.x Signed-off-by: Sinclair Yeh <syeh@vmware.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Charmaine Lee <charmainel@vmware.com>
2017-08-30Merge tag 'drm-misc-fixes-2017-08-28' of ↵Dave Airlie
git://anongit.freedesktop.org/git/drm-misc into drm-fixes Driver Changes: - bridge/sii8620: Fix out-of-bounds write to incorrect register Cc: Maciej Purski <m.purski@samsung.com> Cc: Andrzej Hajda <a.hajda@samsung.com> * tag 'drm-misc-fixes-2017-08-28' of git://anongit.freedesktop.org/git/drm-misc: drm/bridge/sii8620: Fix memory corruption
2017-08-29Merge branch 'drm-vmwgfx-next' of ↵Dave Airlie
git://people.freedesktop.org/~syeh/repos_linux into drm-next vmwgfx add fence fd support. * 'drm-vmwgfx-next' of git://people.freedesktop.org/~syeh/repos_linux: drm/vmwgfx: Bump the version for fence FD support drm/vmwgfx: Add export fence to file descriptor support drm/vmwgfx: Add support for imported Fence File Descriptor drm/vmwgfx: Prepare to support fence fd drm/vmwgfx: Fix incorrect command header offset at restart drm/vmwgfx: Support the NOP_ERROR command drm/vmwgfx: Restart command buffers after errors drm/vmwgfx: Move irq bottom half processing to threads drm/vmwgfx: Don't use drm_irq_[un]install
2017-08-29Merge tag 'exynos-drm-next-for-v4.14' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next Summary: - Provide NV12MT pixel format support of Mixer driver in generic way. - Refactor Exynos KMS drivers . Refactoring to panel detection way . Refactoring to setting up possible_crtcs . Refactoring to video and command mode support - Some cleanups * tag 'exynos-drm-next-for-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: drm/exynos: simplify set_pixfmt() in DECON and FIMD drivers drm/exynos: consistent use of cpp drm/exynos: mixer: remove src offset from mixer_graph_buffer() drm/exynos: mixer: simplify mixer_graph_buffer() drm/exynos: mixer: simplify vp_video_buffer() drm/exynos: mixer: enable NV12MT support for the video plane drm/exynos: mixer: fix chroma comment in vp_video_buffer() arm64: dts: exynos: remove i80-if-timings nodes dt-bindings: exynos5433-decon: remove i80-if-timings property drm/exynos/decon5433: use mode info stored in CRTC to detect i80 mode drm/exynos: add mode_valid callback to exynos_drm drm/exynos/decon5433: refactor irq requesting code drm/exynos/mic: use mode info stored in CRTC to detect i80 mode drm/exynos/dsi: propagate info about command mode from panel drm/exynos/dsi: refactor panel detection logic drm/exynos: use helper to set possible crtcs drm/exynos/decon5433: use readl_poll_timeout helpers
2017-08-29drm/syncobj: Add a signal ioctl (v3)Jason Ekstrand
This IOCTL provides a mechanism for userspace to trigger a sync object directly. There are other ways that userspace can trigger a syncobj such as submitting a dummy batch somewhere or hanging on to a triggered sync_file and doing an import. This just provides an easy way to manually trigger the sync object without weird hacks. The motivation for this IOCTL is Vulkan fences. Vulkan lets you create a fence already in the signaled state so that you can wait on it immediatly without stalling. We could also handle this with a new create flag to ask the driver to create a syncobj that is already signaled but the IOCTL seemed a bit cleaner and more generic. v2: - Take an array of sync objects (Dave Airlie) v3: - Throw -EINVAL if pad != 0 Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-08-29drm/syncobj: Add a reset ioctl (v3)Jason Ekstrand
This just resets the dma_fence to NULL so it looks like it's never been signaled. This will be useful once we add the new wait API for allowing wait on "submit and signal" behavior. v2: - Take an array of sync objects (Dave Airlie) v3: - Throw -EINVAL if pad != 0 Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Reviewed-by: Christian König <christian.koenig@amd.com> (v1) Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-08-29drm/syncobj: Add a syncobj_array_find helperJason Ekstrand
The wait ioctl has a bunch of code to read an syncobj handle array from userspace and turn it into an array of syncobj pointers. We're about to add two new IOCTLs which will need to work with arrays of syncobj handles so let's make some helpers. Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-08-29drm/syncobj: Allow wait for submit and signal behavior (v5)Jason Ekstrand
Vulkan VkFence semantics require that the application be able to perform a CPU wait on work which may not yet have been submitted. This is perfectly safe because the CPU wait has a timeout which will get triggered eventually if no work is ever submitted. This behavior is advantageous for multi-threaded workloads because, so long as all of the threads agree on what fences to use up-front, you don't have the extra cross-thread synchronization cost of thread A telling thread B that it has submitted its dependent work and thread B is now free to wait. Within a single process, this can be implemented in the userspace driver by doing exactly the same kind of tracking the app would have to do using posix condition variables or similar. However, in order for this to work cross-process (as is required by VK_KHR_external_fence), we need to handle this in the kernel. This commit adds a WAIT_FOR_SUBMIT flag to DRM_IOCTL_SYNCOBJ_WAIT which instructs the IOCTL to wait for the syncobj to have a non-null fence and then wait on the fence. Combined with DRM_IOCTL_SYNCOBJ_RESET, you can easily get the Vulkan behavior. v2: - Fix a bug in the invalid syncobj error path - Unify the wait-all and wait-any cases v3: - Unify the timeout == 0 case a bit with the timeout > 0 case - Use wait_event_interruptible_timeout v4: - Use proxy fence v5: - Revert to a combination of v2 and v3 - Don't use proxy fences - Don't use wait_event_interruptible_timeout because it just adds an extra layer of callbacks Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Cc: Dave Airlie <airlied@redhat.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Christian König <christian.koenig@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-08-29drm/syncobj: Add a CREATE_SIGNALED flagJason Ekstrand
This requests that the driver create the sync object such that it already has a signaled dma_fence attached. Because we don't need anything in particular (just something signaled), we use a dummy null fence. This is useful for Vulkan which has a similar flag that can be passed to vkCreateFence. Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-08-29drm/syncobj: Add a callback mechanism for replace_fence (v3)Jason Ekstrand
It is useful in certain circumstances to know when the fence is replaced in a syncobj. Specifically, it may be useful to know when the fence goes from NULL to something valid. This does make syncobj_replace_fence a little more expensive because it has to take a lock but, in the common case where there is no callback list, it spends a very short amount of time inside the lock. v2: - Don't lock in drm_syncobj_fence_get. We only really need to lock around fence_replace to make the callback work. v3: - Fix the cb_list comment to make kbuild happy Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-08-29drm/syncobj: add sync obj wait interface. (v8)Dave Airlie
This interface will allow sync object to be used to back Vulkan fences. This API is pretty much the vulkan fence waiting API, and I've ported the code from amdgpu. v2: accept relative timeout, pass remaining time back to userspace. v3: return to absolute timeouts. v4: absolute zero = poll, rewrite any/all code to have same operation for arrays return -EINVAL for 0 fences. v4.1: fixup fences allocation check, use u64_to_user_ptr v5: move to sec/nsec, and use timespec64 for calcs. v6: use -ETIME and drop the out status flag. (-ETIME is suggested by ickle, I can feel a shed painting) v7: talked to Daniel/Arnd, use ktime and ns everywhere. v8: be more careful in the timeout calculations use uint32_t for counter variables so we don't overflow graciously handle -ENOINT being returned from dma_fence_wait_timeout Signed-off-by: Dave Airlie <airlied@redhat.com> Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-08-29i915: Use drm_syncobj_fence_getJason Ekstrand
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-08-29drm/syncobj: Add a race-free drm_syncobj_fence_get helper (v2)Jason Ekstrand
The atomic exchange operation in drm_syncobj_replace_fence is sufficient for the case where it races with itself. However, if you have a race between a replace_fence and dma_fence_get(syncobj->fence), you may end up with the entire replace_fence happening between the point in time where the one thread gets the syncobj->fence pointer and when it calls dma_fence_get() on it. If this happens, then the reference may be dropped before we get a chance to get a new one. The new helper uses dma_fence_get_rcu_safe to get rid of the race. This is also needed because it allows us to do a bit more than just get a reference in drm_syncobj_fence_get should we wish to do so. v2: - RCU isn't that scary - Call rcu_read_lock/unlock - Don't rename fence to _fence - Make the helper static inline Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Acked-by: Christian König <christian.koenig@amd.com> (v1) Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-08-29drm/syncobj: Rename fence_get to find_fenceJason Ekstrand
The function has far more in common with drm_syncobj_find than with any in the get/put functions. Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Acked-by: Christian König <christian.koenig@amd.com> (v1) Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-08-29drm: kirin: Add mode_valid logic to avoid mode clocks we can't generateJohn Stultz
Currently the hikey dsi logic cannot generate accurate byte clocks values for all pixel clock values. Thus if a mode clock is selected that cannot match the calculated byte clock, the device will boot with a blank screen. This patch uses the new mode_valid callback (many thanks to Jose Abreu for upstreaming it!) to ensure we don't select modes we cannot generate. Also, since the ade crtc code will adjust the mode in mode_set, this patch also adds a mode_fixup callback which we use to make sure we are validating the mode clock that will eventually be used. Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Sean Paul <seanpaul@chromium.org> Cc: David Airlie <airlied@linux.ie> Cc: Rob Clark <robdclark@gmail.com> Cc: Xinliang Liu <xinliang.liu@linaro.org> Cc: Xinliang Liu <z.liuxinliang@hisilicon.com> Cc: Rongrong Zou <zourongrong@gmail.com> Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com> Cc: Chen Feng <puck.chen@hisilicon.com> Cc: Jose Abreu <Jose.Abreu@synopsys.com> Cc: Archit Taneja <architt@codeaurora.org> Cc: dri-devel@lists.freedesktop.org Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: John Stultz <john.stultz@linaro.org> Reviewed-by: Xinliang Liu <xinliang.liu@linaro.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-08-28drm/vmwgfx: Bump the version for fence FD supportSinclair Yeh
Minor version bump to indicate support for fence FD Signed-off-by: Sinclair Yeh <syeh@vmware.com> Reviewed-by: Deepak Singh Rawat <drawat@vmware.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
2017-08-28drm/vmwgfx: Add export fence to file descriptor supportSinclair Yeh
Added code to link a fence to a out_fence_fd file descriptor and thread out_fence_fd down to vmw_execbuf_copy_fence_user() so it can be copied into the IOCTL reply and be passed back up the the user. v2: Make sure to sync and clean up in case of failure Signed-off-by: Sinclair Yeh <syeh@vmware.com> Reviewed-by: Deepak Singh Rawat <drawat@vmware.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>