1. 08 Apr, 2021 3 commits
  2. 07 Apr, 2021 1 commit
  3. 01 Apr, 2021 8 commits
  4. 30 Mar, 2021 4 commits
    • Thierry Reding's avatar
      drm/tegra: sor: Grab runtime PM reference across reset · ac097aec
      Thierry Reding authored
      The SOR resets are exclusively shared with the SOR power domain. This
      means that exclusive access can only be granted temporarily and in order
      for that to work, a rigorous sequence must be observed. To ensure that a
      single consumer gets exclusive access to a reset, each consumer must
      implement a rigorous protocol using the reset_control_acquire() and
      reset_control_release() functions.
      
      However, these functions alone don't provide any guarantees at the
      system level. Drivers need to ensure that the only a single consumer has
      access to the reset at the same time. In order for the SOR to be able to
      exclusively access its reset, it must therefore ensure that the SOR
      power domain is not powered off by holding on to a runtime PM reference
      to that power domain across the reset assert/deassert operation.
      
      This used to work fine by accident, but was revealed when recently more
      devices started to rely on the SOR power domain.
      
      Fixes: 11c632e1 ("drm/tegra: sor: Implement acquire/release for reset")
      Reported-by: default avatarJonathan Hunter <jonathanh@nvidia.com>
      Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
      ac097aec
    • Thierry Reding's avatar
      drm/tegra: dc: Restore coupling of display controllers · a31500fe
      Thierry Reding authored
      Coupling of display controllers used to rely on runtime PM to take the
      companion controller out of reset. Commit fd67e9c6 ("drm/tegra: Do
      not implement runtime PM") accidentally broke this when runtime PM was
      removed.
      
      Restore this functionality by reusing the hierarchical host1x client
      suspend/resume infrastructure that's similar to runtime PM and which
      perfectly fits this use-case.
      
      Fixes: fd67e9c6 ("drm/tegra: Do not implement runtime PM")
      Reported-by: default avatarDmitry Osipenko <digetx@gmail.com>
      Reported-by: default avatarPaul Fertser <fercerpav@gmail.com>
      Tested-by: default avatarDmitry Osipenko <digetx@gmail.com>
      Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
      a31500fe
    • Mikko Perttunen's avatar
      gpu: host1x: Use different lock classes for each client · a24f9817
      Mikko Perttunen authored
      To avoid false lockdep warnings, give each client lock a different
      lock class, passed from the initialization site by macro.
      Signed-off-by: default avatarMikko Perttunen <mperttunen@nvidia.com>
      Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
      a24f9817
    • Dmitry Osipenko's avatar
      drm/tegra: dc: Don't set PLL clock to 0Hz · f8fb97c9
      Dmitry Osipenko authored
      RGB output doesn't allow to change parent clock rate of the display and
      PCLK rate is set to 0Hz in this case. The tegra_dc_commit_state() shall
      not set the display clock to 0Hz since this change propagates to the
      parent clock. The DISP clock is defined as a NODIV clock by the tegra-clk
      driver and all NODIV clocks use the CLK_SET_RATE_PARENT flag.
      
      This bug stayed unnoticed because by default PLLP is used as the parent
      clock for the display controller and PLLP silently skips the erroneous 0Hz
      rate changes because it always has active child clocks that don't permit
      rate changes. The PLLP isn't acceptable for some devices that we want to
      upstream (like Samsung Galaxy Tab and ASUS TF700T) due to a display panel
      clock rate requirements that can't be fulfilled by using PLLP and then the
      bug pops up in this case since parent clock is set to 0Hz, killing the
      display output.
      
      Don't touch DC clock if pclk=0 in order to fix the problem.
      Signed-off-by: default avatarDmitry Osipenko <digetx@gmail.com>
      Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
      f8fb97c9
  5. 29 Mar, 2021 3 commits
  6. 28 Mar, 2021 9 commits
    • Linus Torvalds's avatar
      Linux 5.12-rc5 · a5e13c6d
      Linus Torvalds authored
      a5e13c6d
    • Linus Torvalds's avatar
      Merge tag 'perf-tools-fixes-for-v5.12-2020-03-28' of... · f9e2bb42
      Linus Torvalds authored
      Merge tag 'perf-tools-fixes-for-v5.12-2020-03-28' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
      
      Pull perf tooling fixes from Arnaldo Carvalho de Melo:
      
       - Avoid write of uninitialized memory when generating PERF_RECORD_MMAP*
         records.
      
       - Fix 'perf top' BPF support related crash with perf_event_paranoid=3 +
         kptr_restrict.
      
       - Validate raw event with sysfs exported format bits.
      
       - Fix waipid on SIGCHLD delivery bugs in 'perf daemon'.
      
       - Change to use bash for daemon test on Debian, where the default is
         dash and thus fails for use of bashisms in this test.
      
       - Fix memory leak in vDSO found using ASAN.
      
       - Remove now useless (due to the fact that BPF now supports static
         vars) failing sub test "BPF relocation checker".
      
       - Fix auxtrace queue conflict.
      
       - Sync linux/kvm.h with the kernel sources.
      
      * tag 'perf-tools-fixes-for-v5.12-2020-03-28' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
        perf test: Change to use bash for daemon test
        perf record: Fix memory leak in vDSO found using ASAN
        perf test: Remove now useless failing sub test "BPF relocation checker"
        perf daemon: Return from kill functions
        perf daemon: Force waipid for all session on SIGCHLD delivery
        perf top: Fix BPF support related crash with perf_event_paranoid=3 + kptr_restrict
        perf pmu: Validate raw event with sysfs exported format bits
        perf synthetic events: Avoid write of uninitialized memory when generating PERF_RECORD_MMAP* records
        tools headers UAPI: Sync linux/kvm.h with the kernel sources
        perf synthetic-events: Fix uninitialized 'kernel_thread' variable
        perf auxtrace: Fix auxtrace queue conflict
      f9e2bb42
    • Linus Torvalds's avatar
      Merge tag 'auxdisplay-for-linus-v5.12-rc6' of git://github.com/ojeda/linux · 3fef15f8
      Linus Torvalds authored
      Pull auxdisplay fix from Miguel Ojeda:
       "Remove in_interrupt() usage (Sebastian Andrzej Siewior)"
      
      * tag 'auxdisplay-for-linus-v5.12-rc6' of git://github.com/ojeda/linux:
        auxdisplay: Remove in_interrupt() usage.
      3fef15f8
    • Linus Torvalds's avatar
      Merge tag 'x86-urgent-2021-03-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 36a14638
      Linus Torvalds authored
      Pull x86 fixes from Ingo Molnar:
       "Two fixes:
      
         - Fix build failure on Ubuntu with new GCC packages that turn
           on -fcf-protection
      
         - Fix SME memory encryption PTE encoding bug - AFAICT the code
           worked on 4K page sizes (level 1) but had the wrong shift at
           higher page level orders (level 2 and higher)"
      
      * tag 'x86-urgent-2021-03-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86/build: Turn off -fcf-protection for realmode targets
        x86/mem_encrypt: Correct physical address calculation in __set_clr_pte_enc()
      36a14638
    • Linus Torvalds's avatar
      Merge tag 'locking-urgent-2021-03-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 47fbbc94
      Linus Torvalds authored
      Pull locking fix from Ingo Molnar:
       "Fix the non-debug mutex_lock_io_nested() method to map to
        mutex_lock_io() instead of mutex_lock().
      
        Right now nothing uses this API explicitly, but this is an
        accident waiting to happen"
      
      * tag 'locking-urgent-2021-03-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        locking/mutex: Fix non debug version of mutex_lock_io_nested()
      47fbbc94
    • Linus Torvalds's avatar
      Merge tag '5.12-rc4-smb3' of git://git.samba.org/sfrench/cifs-2.6 · 81b1d39f
      Linus Torvalds authored
      Pull cifs fixes from Steve French:
       "Five cifs/smb3 fixes, two for stable.
      
        Includes an important fix for encryption and an ACL fix, as well as a
        fix for possible reflink data corruption"
      
      * tag '5.12-rc4-smb3' of git://git.samba.org/sfrench/cifs-2.6:
        smb3: fix cached file size problems in duplicate extents (reflink)
        cifs: Silently ignore unknown oplock break handle
        cifs: revalidate mapping when we open files for SMB1 POSIX
        cifs: Fix chmod with modefromsid when an older ACE already exists.
        cifs: Adjust key sizes and key generation routines for AES256 encryption
      81b1d39f
    • Linus Torvalds's avatar
      Merge tag 'io_uring-5.12-2021-03-27' of git://git.kernel.dk/linux-block · b44d1ddc
      Linus Torvalds authored
      Pull io_uring fixes from Jens Axboe:
      
       - Use thread info versions of flag testing, as discussed last week.
      
       - The series enabling PF_IO_WORKER to just take signals, instead of
         needing to special case that they do not in a bunch of places. Ends
         up being pretty trivial to do, and then we can revert all the special
         casing we're currently doing.
      
       - Kill dead pointer assignment
      
       - Fix hashed part of async work queue trace
      
       - Fix sign extension issue for IORING_OP_PROVIDE_BUFFERS
      
       - Fix a link completion ordering regression in this merge window
      
       - Cancellation fixes
      
      * tag 'io_uring-5.12-2021-03-27' of git://git.kernel.dk/linux-block:
        io_uring: remove unsued assignment to pointer io
        io_uring: don't cancel extra on files match
        io_uring: don't cancel-track common timeouts
        io_uring: do post-completion chore on t-out cancel
        io_uring: fix timeout cancel return code
        Revert "signal: don't allow STOP on PF_IO_WORKER threads"
        Revert "kernel: freezer should treat PF_IO_WORKER like PF_KTHREAD for freezing"
        Revert "kernel: treat PF_IO_WORKER like PF_KTHREAD for ptrace/signals"
        Revert "signal: don't allow sending any signals to PF_IO_WORKER threads"
        kernel: stop masking signals in create_io_thread()
        io_uring: handle signals for IO threads like a normal thread
        kernel: don't call do_exit() for PF_IO_WORKER threads
        io_uring: maintain CQE order of a failed link
        io-wq: fix race around pending work on teardown
        io_uring: do ctx sqd ejection in a clear context
        io_uring: fix provide_buffers sign extension
        io_uring: don't skip file_end_write() on reissue
        io_uring: correct io_queue_async_work() traces
        io_uring: don't use {test,clear}_tsk_thread_flag() for current
      b44d1ddc
    • Linus Torvalds's avatar
      Merge tag 'block-5.12-2021-03-27' of git://git.kernel.dk/linux-block · abed516e
      Linus Torvalds authored
      Pull block fixes from Jens Axboe:
      
       - Fix regression from this merge window with the xarray partition
         change, which allowed partition counts that overflow the u8 that
         holds the partition number (Ming)
      
       - Fix zone append warning (Johannes)
      
       - Segmentation count fix for multipage bvecs (David)
      
       - Partition scan fix (Chris)
      
      * tag 'block-5.12-2021-03-27' of git://git.kernel.dk/linux-block:
        block: don't create too many partitions
        block: support zone append bvecs
        block: recalculate segment count for multi-segment discards correctly
        block: clear GD_NEED_PART_SCAN later in bdev_disk_changed
      abed516e
    • Linus Torvalds's avatar
      Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi · e8cfe8fa
      Linus Torvalds authored
      Pull SCSI fixes from James Bottomley:
       "Seven fixes, all in drivers (qla2xxx, mkt3sas, qedi, target,
        ibmvscsi).
      
        The most serious are the target pscsi oom and the qla2xxx revert which
        can otherwise cause a use after free"
      
      * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
        scsi: target: pscsi: Clean up after failure in pscsi_map_sg()
        scsi: target: pscsi: Avoid OOM in pscsi_map_sg()
        scsi: mpt3sas: Fix error return code of mpt3sas_base_attach()
        scsi: qedi: Fix error return code of qedi_alloc_global_queues()
        scsi: Revert "qla2xxx: Make sure that aborted commands are freed"
        scsi: ibmvfc: Make ibmvfc_wait_for_ops() MQ aware
        scsi: ibmvfc: Fix potential race in ibmvfc_wait_for_ops()
      e8cfe8fa
  7. 27 Mar, 2021 12 commits