1. 21 Jan, 2021 2 commits
  2. 15 Jan, 2021 7 commits
  3. 07 Jan, 2021 1 commit
    • Lina Iyer's avatar
      soc: qcom: rpmh: Remove serialization of TCS commands · fef419c4
      Lina Iyer authored
      Requests sent to RPMH can be sent as fire-n-forget or response required,
      with the latter ensuring the command has been completed by the hardware
      accelerator. Commands in a request with tcs_cmd::wait set, would ensure
      that those select commands are sent as response required, even though
      the actual TCS request may be fire-n-forget.
      
      Also, commands with .wait flag were also guaranteed to be complete
      before the following command in the TCS is sent. This means that the
      next command of the same request blocked until the current request is
      completed. This could mean waiting for a voltage to settle or series of
      NOCs be configured before the next command is sent. But drivers using
      this feature have never cared about the serialization aspect. By not
      enforcing the serialization we can allow the hardware to run in parallel
      improving the performance.
      
      Let's clarify the usage of this member in the tcs_cmd structure to mean
      only completion and not serialization. This should also improve the
      performance of bus requests where changes could happen in parallel.
      Also, CPU resume from deep idle may see benefits from certain wake
      requests.
      Reviewed-by: default avatarDouglas Anderson <dianders@chromium.org>
      Signed-off-by: default avatarLina Iyer <ilina@codeaurora.org>
      Signed-off-by: default avatarMaulik Shah <mkshah@codeaurora.org>
      Link: https://lore.kernel.org/r/1610008770-13891-1-git-send-email-mkshah@codeaurora.orgSigned-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
      fef419c4
  4. 28 Dec, 2020 6 commits
  5. 27 Dec, 2020 8 commits
  6. 26 Dec, 2020 5 commits
  7. 25 Dec, 2020 5 commits
    • Linus Torvalds's avatar
      drm/amd/display: avoid uninitialized variable warning · 61d79136
      Linus Torvalds authored
      clang (quite rightly) complains fairly loudly about the newly added
      mpc1_get_mpc_out_mux() function returning an uninitialized value if the
      'opp_id' checks don't pass.
      
      This may not happen in practice, but the code really shouldn't return
      garbage if the sanity checks don't pass.
      
      So just initialize 'val' to zero to avoid the issue.
      
      Fixes: 110b055b ("drm/amd/display: add getter routine to retrieve mpcc mux")
      Cc: Josip Pavic <Josip.Pavic@amd.com>
      Cc: Bindu Ramamurthy <bindu.r@amd.com>
      Cc: Alex Deucher <alexander.deucher@amd.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      61d79136
    • Linus Torvalds's avatar
      Merge tag 'perf-tools-2020-12-24' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux · 5814bc2d
      Linus Torvalds authored
      Pull more perf tools updates from Arnaldo Carvalho de Melo:
      
       - Refactor 'perf stat' per CPU/socket/die/thread aggregation fixing use
         cases in ARM machines.
      
       - Fix memory leak when synthesizing SDT probes in 'perf probe'.
      
       - Update kernel header copies related to KVM, epol_pwait. msr-index and
         powerpc and s390 syscall tables.
      
      * tag 'perf-tools-2020-12-24' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (24 commits)
        perf probe: Fix memory leak when synthesizing SDT probes
        perf stat aggregation: Add separate thread member
        perf stat aggregation: Add separate core member
        perf stat aggregation: Add separate die member
        perf stat aggregation: Add separate socket member
        perf stat aggregation: Add separate node member
        perf stat aggregation: Start using cpu_aggr_id in map
        perf cpumap: Drop in cpu_aggr_map struct
        perf cpumap: Add new map type for aggregation
        perf stat: Replace aggregation ID with a struct
        perf cpumap: Add new struct for cpu aggregation
        perf cpumap: Use existing allocator to avoid using malloc
        perf tests: Improve topology test to check all aggregation types
        perf tools: Update s390's syscall.tbl copy from the kernel sources
        perf tools: Update powerpc's syscall.tbl copy from the kernel sources
        perf s390: Move syscall.tbl check into check-headers.sh
        perf powerpc: Move syscall.tbl check to check-headers.sh
        tools headers UAPI: Synch KVM's svm.h header with the kernel
        tools kvm headers: Update KVM headers from the kernel sources
        tools headers UAPI: Sync KVM's vmx.h header with the kernel sources
        ...
      5814bc2d
    • Linus Torvalds's avatar
      Merge branch 'for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux · 42dc45e8
      Linus Torvalds authored
      Pull coccinelle updates from Julia Lawall.
      
      * 'for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux:
        scripts: coccicheck: Correct usage of make coccicheck
        coccinelle: update expiring email addresses
        coccinnelle: Remove ptr_ret script
        kbuild: do not use scripts/ld-version.sh for checking spatch version
        remove boolinit.cocci
      42dc45e8
    • Michael Ellerman's avatar
      genirq: Fix export of irq_to_desc() for powerpc KVM · 11cc92eb
      Michael Ellerman authored
      Commit 64a1b95b ("genirq: Restrict export of irq_to_desc()") removed
      the export of irq_to_desc() unless powerpc KVM is being built, because
      there is still a use of irq_to_desc() in modular code there.
      
      However it used:
      
        #ifdef CONFIG_KVM_BOOK3S_64_HV
      
      Which doesn't work when that symbol is =m, leading to a build failure:
      
        ERROR: modpost: "irq_to_desc" [arch/powerpc/kvm/kvm-hv.ko] undefined!
      
      Fix it by checking for the definedness of the correct symbol which is
      CONFIG_KVM_BOOK3S_64_HV_MODULE.
      
      Fixes: 64a1b95b ("genirq: Restrict export of irq_to_desc()")
      Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      11cc92eb
    • Linus Torvalds's avatar
      Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs · 7bb5226c
      Linus Torvalds authored
      Pull misc vfs updates from Al Viro:
       "Assorted patches from previous cycle(s)..."
      
      * 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
        fix hostfs_open() use of ->f_path.dentry
        Make sure that make_create_in_sticky() never sees uninitialized value of dir_mode
        fs: Kill DCACHE_DONTCACHE dentry even if DCACHE_REFERENCED is set
        fs: Handle I_DONTCACHE in iput_final() instead of generic_drop_inode()
        fs/namespace.c: WARN if mnt_count has become negative
      7bb5226c
  8. 24 Dec, 2020 6 commits
    • Linus Torvalds's avatar
      Merge tag 'docs-5.11-2' of git://git.lwn.net/linux · 71c5f031
      Linus Torvalds authored
      Pull documentation fixes from Jonathan Corbet:
       "A small set of late-arriving, small documentation fixes"
      
      * tag 'docs-5.11-2' of git://git.lwn.net/linux:
        docs: admin-guide: Fix default value of max_map_count in sysctl/vm.rst
        Documentation/submitting-patches: Document the SoB chain
        Documentation: process: Correct numbering
        docs: submitting-patches: Trivial - fix grammatical error
      71c5f031
    • Linus Torvalds's avatar
      Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 · 555a6e8c
      Linus Torvalds authored
      Pull ext4 updates from Ted Ts'o:
       "Various bug fixes and cleanups for ext4; no new features this cycle"
      
      * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (29 commits)
        ext4: remove unnecessary wbc parameter from ext4_bio_write_page
        ext4: avoid s_mb_prefetch to be zero in individual scenarios
        ext4: defer saving error info from atomic context
        ext4: simplify ext4 error translation
        ext4: move functions in super.c
        ext4: make ext4_abort() use __ext4_error()
        ext4: standardize error message in ext4_protect_reserved_inode()
        ext4: remove redundant sb checksum recomputation
        ext4: don't remount read-only with errors=continue on reboot
        ext4: fix deadlock with fs freezing and EA inodes
        jbd2: add a helper to find out number of fast commit blocks
        ext4: make fast_commit.h byte identical with e2fsprogs/fast_commit.h
        ext4: fix fall-through warnings for Clang
        ext4: add docs about fast commit idempotence
        ext4: remove the unused EXT4_CURRENT_REV macro
        ext4: fix an IS_ERR() vs NULL check
        ext4: check for invalid block size early when mounting a file system
        ext4: fix a memory leak of ext4_free_data
        ext4: delete nonsensical (commented-out) code inside ext4_xattr_block_set()
        ext4: update ext4_data_block_valid related comments
        ...
      555a6e8c
    • Linus Torvalds's avatar
      Merge tag 'Smack-for-5.11-io_uring-fix' of git://github.com/cschaufler/smack-next · 2f2fce3d
      Linus Torvalds authored
      Pull smack fix from Casey Schaufler:
       "Provide a fix for the incorrect handling of privilege in the face of
        io_uring's use of kernel threads. That invalidated an long standing
        assumption regarding the privilege of kernel threads.
      
        The fix is simple and safe. It was provided by Jens Axboe and has been
        tested"
      
      * tag 'Smack-for-5.11-io_uring-fix' of git://github.com/cschaufler/smack-next:
        Smack: Handle io_uring kernel thread privileges
      2f2fce3d
    • Linus Torvalds's avatar
      Merge tag 'riscv-for-linus-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux · 7a2fde8d
      Linus Torvalds authored
      Pull RISC-V fix from Palmer Dabbelt
       "Avoid trying to initialize memory regions outside the usable range"
      
      * tag 'riscv-for-linus-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
        RISC-V: Fix usage of memblock_enforce_memory_limit
      7a2fde8d
    • Linus Torvalds's avatar
      Merge tag 'powerpc-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux · 9b3f7f1b
      Linus Torvalds authored
      Pull powerpc fixes from Michael Ellerman:
      
       - Four commits fixing various things in the new C VDSO code
      
       - One fix for a 32-bit VMAP stack bug
      
       - Two minor build fixes
      
      Thanks to Cédric Le Goater, Christophe Leroy, and Will Springer.
      
      * tag 'powerpc-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
        powerpc/32: Fix vmap stack - Properly set r1 before activating MMU on syscall too
        powerpc/vdso: Fix DOTSYM for 32-bit LE VDSO
        powerpc/vdso: Don't pass 64-bit ABI cflags to 32-bit VDSO
        powerpc/vdso: Block R_PPC_REL24 relocations
        powerpc/smp: Add __init to init_big_cores()
        powerpc/time: Force inlining of get_tb()
        powerpc/boot: Fix build of dts/fsl
      9b3f7f1b
    • Linus Torvalds's avatar
      Merge tag 'irq-core-2020-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 3913d00a
      Linus Torvalds authored
      Pull irq updates from Thomas Gleixner:
       "This is the second attempt after the first one failed miserably and
        got zapped to unblock the rest of the interrupt related patches.
      
        A treewide cleanup of interrupt descriptor (ab)use with all sorts of
        racy accesses, inefficient and disfunctional code. The goal is to
        remove the export of irq_to_desc() to prevent these things from
        creeping up again"
      
      * tag 'irq-core-2020-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
        genirq: Restrict export of irq_to_desc()
        xen/events: Implement irq distribution
        xen/events: Reduce irq_info:: Spurious_cnt storage size
        xen/events: Only force affinity mask for percpu interrupts
        xen/events: Use immediate affinity setting
        xen/events: Remove disfunct affinity spreading
        xen/events: Remove unused bind_evtchn_to_irq_lateeoi()
        net/mlx5: Use effective interrupt affinity
        net/mlx5: Replace irq_to_desc() abuse
        net/mlx4: Use effective interrupt affinity
        net/mlx4: Replace irq_to_desc() abuse
        PCI: mobiveil: Use irq_data_get_irq_chip_data()
        PCI: xilinx-nwl: Use irq_data_get_irq_chip_data()
        NTB/msi: Use irq_has_action()
        mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc
        pinctrl: nomadik: Use irq_has_action()
        drm/i915/pmu: Replace open coded kstat_irqs() copy
        drm/i915/lpe_audio: Remove pointless irq_to_desc() usage
        s390/irq: Use irq_desc_kstat_cpu() in show_msi_interrupt()
        parisc/irq: Use irq_desc_kstat_cpu() in show_interrupts()
        ...
      3913d00a