- 16 Jul, 2021 1 commit
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Maarten Lankhorst authored
I noticed when grepping for DOC: that those were defined in the header, but not actually used. Fix it by removing all chapters and the internal annotation, so the docbook generated chapters are used. This reverts the changes to driver-uapi.rst by the referenced commit 57772953 ("drm/i915: Document the Virtual Engine uAPI") Signed-off-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210715120842.806605-1-maarten.lankhorst@linux.intel.com Fixes: 57772953 ("drm/i915: Document the Virtual Engine uAPI") Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by:
Matthew Auld <matthew.auld@intel.com>
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- 15 Jul, 2021 13 commits
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Matt Roper authored
The switch from old old IS_FOO_REVID() macros to the new table-based IS_FOO_{GT,DISP}_STEP() macros is needed on both drm-intel-next (for display-based DMC matching) and drm-intel-gt-next (for workaround guards). To avoid conflicts, we'll apply the patches to a topic branch and merge it to both intel branches to ensure the transition to the new macros is clean. Signed-off-by:Matt Roper <matthew.d.roper@intel.com>
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Matt Roper authored
We're past the point at which we usually drop workarounds that were never needed on production hardware. The driver will already print an error and apply taint if loaded on pre-production hardware. Signed-off-by:
Anusha Srivatsa <anusha.srivatsa@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210713193635.3390052-13-matthew.d.roper@intel.com
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Matt Roper authored
All of the Cannon Lake hardware that came out had graphics fused off, and our userspace drivers have already dropped their support for the platform; CNL-specific code in i915 that isn't inherited by subsequent platforms is effectively dead code. Let's remove all of the CNL-specific workarounds as a quick and easy first step. References: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6899Signed-off-by:
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Matt Roper authored
Switch DG1 to use a revid->stepping table as we're trying to do on all platforms going forward. This removes the last use of IS_REVID() and REVID_FOREVER, so remove those now-unused macros as well to prevent their accidental use on future platforms. v2: - Use COMMON_STEP() macro in table. (Anusha) Bspec: 44463 Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by:
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Matt Roper authored
Switch RKL to use a revid->stepping table as we're trying to do on all platforms going forward. Bspec: 44501 Signed-off-by:
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Matt Roper authored
Switch JSL/EHL to use a revid->stepping table as we're trying to do on all platforms going forward. v2: - Use COMMON_STEP(). (Anusha) Bspec: 29153 Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by:
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Matt Roper authored
Switch ICL to use a revid->stepping table as we're trying to do on all platforms going forward. While we're at it, let's include some additional steppings that have popped up, even if we don't yet have any workarounds tied to those steppings (we probably need to audit our workaround list soon to see if any of the bounds have moved or if new workarounds have appeared). Note that the current bspec table is missing information about how to map PCI revision ID to GT/display steppings; it only provides an SoC stepping. The mapping to GT/display steppings (which aren't always the same as the SoC stepping) used to be in the bspec, but was apparently dropped during an update in Nov 2019; I've made my changes here based on an older bspec snapshot that still had the necessary information. We've requested that the missing information be restored. I'm only including the production revids in the table here since we're past the point at which we usually stop trying to support pre-production hardware. An appropriate check is added to intel_detect_preproduction_hw() to print an error and taint the kernel just in case someone still tries to load the driver on old pre-production hardware. v2: - Drop pre-production steppings and add error/taint at startup when loading on pre-production hardware. Bspec: 21141 # pre-Nov 2019 snapshot Signed-off-by:
José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210713193635.3390052-8-matthew.d.roper@intel.com
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Matt Roper authored
Switch GLK to use a revid->stepping table as we're trying to do on all platforms going forward. Pre-production and placeholder revisions are omitted. Although nothing in the code is using the data from this table at the moment, we expect some upcoming DMC patches to start utilizing it. Bspec: 19131 Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by:
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Matt Roper authored
Switch BXT to use a revid->stepping table as we're trying to do on all platforms going forward. Note that the REVID macros we had before weren't being used anywhere in the code and weren't even correct; the table values come from the bspec (and omits all the placeholder and preproduction revisions). Although nothing in the code is using the data from this table at the moment, we expect some upcoming DMC patches to start utilizing it. Bspec: 13620 Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by:
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Matt Roper authored
We're long past the point where we need to care about pre-production hardware, and we already warn the user and taint the kernel if we detect the driver is being loaded on pre-production hardware. Bspec: 18329 Signed-off-by:
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Matt Roper authored
Switch SKL to use a revid->stepping table as we're trying to do on all platforms going forward. Also drop the preproduction revisions and add the newer steppings we hadn't already handled. Note that SKL has a case where a newer revision ID corresponds to an older GT/disp stepping (0x9 -> STEP_J0, 0xA -> STEP_I1). Also, the lack of a revision ID 0x8 in the table is intentional and not an oversight. We'll re-write the KBL-specific comment to make it clear that these kind of quirks are expected. v2: - Since GT and display steppings are always identical on SKL use a macro to set both values at once in a more readable manner. (Anusha) - Drop preproduction steppings. Bspec: 13626 Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by:
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Matt Roper authored
Although we're converting our workarounds to use a revid->stepping lookup table, the function that detects pre-production hardware should continue to compare against PCI revision ID values directly. These are listed in the bspec as integers, so it's easier to confirm their correctness if we just use an integer literal rather than a symbolic name anyway. Bspec: 13620, 19131, 13626, 18329 Signed-off-by:
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Anusha Srivatsa authored
Simplify the stepping info array name. Cc: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210713193635.3390052-2-matthew.d.roper@intel.com
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- 14 Jul, 2021 3 commits
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Matthew Auld authored
We skip filling out the pt with scratch entries if the va range covers the entire pt, since we later have to fill it with the PTEs for the object pages anyway. However this might leave open a small window where the PTEs don't point to anything valid for the HW to consume. When for example using 2M GTT pages this fill_px() showed up as being quite significant in perf measurements, and ends up being completely wasted since we ignore the pt and just use the pde directly. Anyway, currently we have our PTE construction split between alloc and insert, which is probably slightly iffy nowadays, since the alloc doesn't actually allocate anything anymore, instead it just sets up the page directories and points the PTEs at the scratch page. Later when we do the insert step we re-program the PTEs again. Better might be to squash the alloc and insert into a single step, then bringing back this optimisation(along with some others) should be possible. Fixes: 14826673 ("drm/i915: Only initialize partially filled pagetables") Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20210713130431.2392740-1-matthew.auld@intel.com
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Matthew Auld authored
Convert all the drm_i915_gem_set_domain bits to proper kernel doc. Suggested-by:
Daniel Vetter <daniel@ffwll.ch> Signed-off-by:
Ramalingam C <ramalingam.c@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210705135310.1502437-4-matthew.auld@intel.com
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Matthew Auld authored
Convert all the drm_i915_gem_caching bits to proper kernel doc. Suggested-by:
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- 13 Jul, 2021 11 commits
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John Harrison authored
Add several module failure load inject points in the CT buffer creation code path. Signed-off-by:
John Harrison <John.C.Harrison@Intel.com> Signed-off-by:
Matthew Brost <matthew.brost@intel.com> Reviewed-by:
Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by:
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Matthew Brost authored
CTB writes are now in the path of command submission and should be optimized for performance. Rather than reading CTB descriptor values (e.g. head, tail) which could result in accesses across the PCIe bus, store shadow local copies and only read/write the descriptor values when absolutely necessary. Also store the current space in the each channel locally. v2: (Michal) - Add additional sanity checks for head / tail pointers - Use GUC_CTB_HDR_LEN rather than magic 1 v3: (Michal / John H) - Drop redundant check of head value v4: (John H) - Drop redundant checks of tail / head values v5: (Michal) - Address more nits v6: (Michal) - Add GEM_BUG_ON sanity check on ctb->space Signed-off-by:
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Matthew Brost authored
Implement a stall timer which fails H2G CTBs once a period of time with no forward progress is reached to prevent deadlock. v2: (Michal) - Improve error message in ct_deadlock() - Set broken when ct_deadlock() returns true - Return -EPIPE on ct_deadlock() v3: (Michal) - Add ms to stall timer comment (Matthew) - Move broken check to intel_guc_ct_send() Signed-off-by:
Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by:
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Matthew Brost authored
Add non blocking CTB send function, intel_guc_send_nb. GuC submission will send CTBs in the critical path and does not need to wait for these CTBs to complete before moving on, hence the need for this new function. The non-blocking CTB now must have a flow control mechanism to ensure the buffer isn't overrun. A lazy spin wait is used as we believe the flow control condition should be rare with a properly sized buffer. The function, intel_guc_send_nb, is exported in this patch but unused. Several patches later in the series make use of this function. v2: (Michal) - Use define for H2G room calculations - Move INTEL_GUC_SEND_NB define (Daniel Vetter) - Use msleep_interruptible rather than cond_resched v3: (Michal) - Move includes to following patch - s/INTEL_GUC_SEND_NB/INTEL_GUC_CT_SEND_NB/g v4: (John H) - Update comment, add type local variable Signed-off-by:
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Matthew Brost authored
With the introduction of non-blocking CTBs more than one CTB can be in flight at a time. Increasing the size of the CTBs should reduce how often software hits the case where no space is available in the CTB buffer. Cc: John Harrison <john.c.harrison@intel.com> Signed-off-by:
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Matthew Brost authored
Improve the error message when a unsolicited CT response is received by printing fence that couldn't be found, the last fence, and all requests with a response outstanding. Signed-off-by:
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Matthew Brost authored
In upcoming patch we will allow more CTB requests to be sent in parallel to the GuC for processing, so we shouldn't assume any more that GuC will always reply without 10ms. Use bigger value hardcoded value of 1s instead. v2: Add CONFIG_DRM_I915_GUC_CTB_TIMEOUT config option v3: (Daniel Vetter) - Use hardcoded value of 1s rather than config option v4: (Michal) - Use defines for timeout values Signed-off-by:
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Rodrigo Vivi authored
Catching up with 5.14-rc1 and also preparing for a needed common topic branch for the "Minor revid/stepping and workaround cleanup" Reference: https://patchwork.freedesktop.org/series/92299/Signed-off-by:
Rodrigo Vivi <rodrigo.vivi@intel.com>
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José Roberto de Souza authored
BSpec: 54370 Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Reviewed-by:
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José Roberto de Souza authored
Same bit was required for Wa_14012131227 in DG1 now it is also required as Wa_1508744258 to TGL, RKL, DG1, ADL-S and ADL-P. Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> Reviewed-by:
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José Roberto de Souza authored
Most of the places are using this format so lets consolidate it. v2: - split patch in two: display and non-display because of conflicts between drm-intel-gt-next x drm-intel-next Reviewed-by:
Lucas De Marchi <lucas.demarchi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210713003854.143197-2-jose.souza@intel.com
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- 11 Jul, 2021 12 commits
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Linus Torvalds authored
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Hugh Dickins authored
I know nothing about zone_device pages and !device_private pages; but if try_to_migrate_one() will do nothing for them, then it's better that try_to_migrate() filter them first, than trawl through all their vmas. Signed-off-by:
Hugh Dickins <hughd@google.com> Reviewed-by:
Shakeel Butt <shakeelb@google.com> Reviewed-by:
Alistair Popple <apopple@nvidia.com> Link: https://lore.kernel.org/lkml/1241d356-8ec9-f47b-a5ec-9b2bf66d242@google.com/ Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Yang Shi <shy828301@gmail.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Hugh Dickins authored
In the unlikely race case that page_mlock_one() finds VM_LOCKED has been cleared by the time it got page table lock, page_vma_mapped_walk_done() must be called before returning, either explicitly, or by a final call to page_vma_mapped_walk() - otherwise the page table remains locked. Fixes: cd62734c ("mm/rmap: split try_to_munlock from try_to_unmap") Signed-off-by:
kernel test robot <oliver.sang@intel.com> Link: https://lore.kernel.org/lkml/20210711151446.GB4070@xsang-OptiPlex-9020/ Link: https://lore.kernel.org/lkml/f71f8523-cba7-3342-40a7-114abc5d1f51@google.com/ Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Yang Shi <shy828301@gmail.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by:
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Hugh Dickins authored
The kernel recovers in due course from missing Mlocked pages: but there was no point in calling page_mlock() (formerly known as try_to_munlock()) on a THP, because nothing got done even when it was found to be mapped in another VM_LOCKED vma. It's true that we need to be careful: Mlocked accounting of pte-mapped THPs is too difficult (so consistently avoided); but Mlocked accounting of only-pmd-mapped THPs is supposed to work, even when multiple mappings are mlocked and munlocked or munmapped. Refine the tests. There is already a VM_BUG_ON_PAGE(PageDoubleMap) in page_mlock(), so page_mlock_one() does not even have to worry about that complication. (I said the kernel recovers: but would page reclaim be likely to split THP before rediscovering that it's VM_LOCKED? I've not followed that up) Fixes: 9a73f61b ("thp, mlock: do not mlock PTE-mapped file huge pages") Signed-off-by:
Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Link: https://lore.kernel.org/lkml/cfa154c-d595-406-eb7d-eb9df730f944@google.com/ Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Alistair Popple <apopple@nvidia.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Yang Shi <shy828301@gmail.com> Signed-off-by:
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Hugh Dickins authored
Parallel developments in mm/rmap.c have left behind some out-of-date comments: try_to_migrate_one() also accepts TTU_SYNC (already commented in try_to_migrate() itself), and try_to_migrate() returns nothing at all. TTU_SPLIT_FREEZE has just been deleted, so reword the comment about it in mm/huge_memory.c; and TTU_IGNORE_ACCESS was removed in 5.11, so delete the "recently referenced" comment from try_to_unmap_one() (once upon a time the comment was near the removed codeblock, but they drifted apart). Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq fixes from Ingo Molnar: "Two fixes: - Fix a MIPS IRQ handling RCU bug - Remove a DocBook annotation for a parameter that doesn't exist anymore" * tag 'irq-urgent-2021-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/mips: Fix RCU violation when using irqdomain lookup on interrupt entry genirq/irqdesc: Drop excess kernel-doc entry @lookup -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fixes from Ingo Molnar: "Three fixes: - Fix load tracking bug/inconsistency - Fix a sporadic CFS bandwidth constraints enforcement bug - Fix a uclamp utilization tracking bug for newly woken tasks" * tag 'sched-urgent-2021-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched/uclamp: Ignore max aggregation if rq is idle sched/fair: Fix CFS bandwidth hrtimer expiry type sched/fair: Sync load_sum with load_avg after dequeue
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf fixes from Ingo Molnar: "A fix and a hardware-enablement addition: - Robustify uncore_snbep's skx_iio_set_mapping()'s error cleanup - Add cstate event support for Intel ICELAKE_X and ICELAKE_D" * tag 'perf-urgent-2021-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/uncore: Clean up error handling path of iio mapping perf/x86/cstate: Add ICELAKE_X and ICELAKE_D support
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull locking fixes from Ingo Molnar: - Fix a Sparc crash - Fix a number of objtool warnings - Fix /proc/lockdep output on certain configs - Restore a kprobes fail-safe * tag 'locking-urgent-2021-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/atomic: sparc: Fix arch_cmpxchg64_local() kprobe/static_call: Restore missing static_call_text_reserved() static_call: Fix static_call_text_reserved() vs __init jump_label: Fix jump_label_text_reserved() vs __init locking/lockdep: Fix meaningless /proc/lockdep output of lock classes on !CONFIG_PROVE_LOCKING
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull more SCSI updates from James Bottomley: "This is a set of minor fixes and clean ups in the core and various drivers. The only core change in behaviour is the I/O retry for spinup notify, but that shouldn't impact anything other than the failing case" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (23 commits) scsi: virtio_scsi: Add validation for residual bytes from response scsi: ipr: System crashes when seeing type 20 error scsi: core: Retry I/O for Notify (Enable Spinup) Required error scsi: mpi3mr: Fix warnings reported by smatch scsi: qedf: Add check to synchronize abort and flush scsi: MAINTAINERS: Add mpi3mr driver maintainers scsi: libfc: Fix array index out of bound exception scsi: mvsas: Use DEVICE_ATTR_RO()/RW() macro scsi: megaraid_mbox: Use DEVICE_ATTR_ADMIN_RO() macro scsi: qedf: Use DEVICE_ATTR_RO() macro scsi: qedi: Use DEVICE_ATTR_RO() macro scsi: message: mptfc: Switch from pci_ to dma_ API scsi: be2iscsi: Fix some missing space in some messages scsi: be2iscsi: Fix an error handling path in beiscsi_dev_probe() scsi: ufs: Fix build warning without CONFIG_PM scsi: bnx2fc: Remove meaningless bnx2fc_abts_cleanup() return value assignment scsi: qla2xxx: Add heartbeat check scsi: virtio_scsi: Do not overwrite SCSI status scsi: libsas: Add LUN number check in .slave_alloc callback scsi: core: Inline scsi_mq_alloc_queue() ...
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Linus Torvalds authored
Merge tag 'perf-tools-for-v5.14-2021-07-10' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull more perf tool updates from Arnaldo Carvalho de Melo: "New features: - Enable use of BPF counters with 'perf stat --for-each-cgroup', using per-CPU 'cgroup-switch' events with an attached BPF program that does aggregation per-cgroup in the kernel instead of using per-cgroup perf events. - Add Topdown metrics L2 events as default events in 'perf stat' for systems having those events. Hardware tracing: - Add a config for max loops without consuming a packet in the Intel PT packet decoder, set via 'perf config intel-pt.max-loops=N' Hardware enablement: - Disable misleading NMI watchdog message in 'perf stat' on hybrid systems such as Intel Alder Lake. - Add a dummy event on hybrid systems to collect metadata records. - Add 24x7 nest metric events for the Power10 platform. Fixes: - Fix event parsing for PMUs starting with the same prefix. - Fix the 'perf trace' 'trace' alias installation dir. - Fix buffer size to report iregs in perf script python scripts, supporting the extended registers in PowerPC. - Fix overflow in elf_sec__is_text(). - Fix 's' on source line when disasm is empty in the annotation TUI, accessible via 'perf annotate', 'perf report' and 'perf top'. - Plug leaks in scandir() returned dirent entries in 'perf test' when sorting the shell tests. - Fix --task and --stat with pipe input in 'perf report'. - Fix 'perf probe' use of debuginfo files by build id. - If a DSO has both dynsym and symtab ELF sections, read from both when loading the symbol table, fixing a problem processing Fedora 32 glibc DSOs. Libraries: - Add grouping of events to libperf, from code in tools/perf, allowing libperf users to use that mode. Misc: - Filter plt stubs from the 'perf probe --functions' output. - Update UAPI header copies for asound, DRM, mman-common.h and the ones affected by the quotactl_fd syscall" * tag 'perf-tools-for-v5.14-2021-07-10' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (29 commits) perf test: Add free() calls for scandir() returned dirent entries libperf: Add tests for perf_evlist__set_leader() libperf: Remove BUG_ON() from library code in get_group_fd() libperf: Add group support to perf_evsel__open() perf tools: Fix pattern matching for same substring in different PMU type perf record: Add a dummy event on hybrid systems to collect metadata records perf stat: Add Topdown metrics L2 events as default events libperf: Adopt evlist__set_leader() from tools/perf as perf_evlist__set_leader() libperf: Move 'nr_groups' from tools/perf to evlist::nr_groups libperf: Move 'leader' from tools/perf to perf_evsel::leader libperf: Move 'idx' from tools/perf to perf_evsel::idx libperf: Change tests to single static and shared binaries perf intel-pt: Add a config for max loops without consuming a packet perf stat: Disable the NMI watchdog message on hybrid perf vendor events power10: Adds 24x7 nest metric events for power10 platform perf script python: Fix buffer size to report iregs in perf script perf trace: Fix the perf trace link location perf top: Fix overflow in elf_sec__is_text() perf annotate: Fix 's' on source line when disasm is empty perf probe: Do not show @plt function by default ...
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Ville Syrjälä authored
The conversion to ww mutexes failed to address the fence code which already returns -EDEADLK when we run out of fences. Ww mutexes on the other hand treat -EDEADLK as an internal errno value indicating a need to restart the operation due to a deadlock. So now when the fence code returns -EDEADLK the higher level code erroneously restarts everything instead of returning the error to userspace as is expected. To remedy this let's switch the fence code to use a different errno value for this. -ENOBUFS seems like a semi-reasonable unique choice. Apart from igt the only user of this I could find is sna, and even there all we do is dump the current fence registers from debugfs into the X server log. So no user visible functionality is affected. If we really cared about preserving this we could of course convert back to -EDEADLK higher up, but doesn't seem like that's worth the hassle here. Not quite sure which commit specifically broke this, but I'll just attribute it to the general gem ww mutex work. Cc: stable@vger.kernel.org Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Thomas Hellström <thomas.hellstrom@intel.com> Testcase: igt/gem_pread/exhaustion Testcase: igt/gem_pwrite/basic-exhaustion Testcase: igt/gem_fenced_exec_thrash/too-many-fences Fixes: 80f0b679 ("drm/i915: Add an implementation for i915_gem_ww_ctx locking, v2.") Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210630164413.25481-1-ville.syrjala@linux.intel.comReviewed-by:
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