platform/kernel/linux-rpi.git
3 years agoio_uring: io_rw_reissue lockdep annotations
Pavel Begunkov [Fri, 8 Jan 2021 20:57:22 +0000 (20:57 +0000)]
io_uring: io_rw_reissue lockdep annotations

We expect io_rw_reissue() to take place only during submission with
uring_lock held. Add a lockdep annotation to check that invariant.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: synchronise ev_posted() with waitqueues
Pavel Begunkov [Thu, 7 Jan 2021 03:15:43 +0000 (03:15 +0000)]
io_uring: synchronise ev_posted() with waitqueues

waitqueue_active() needs smp_mb() to be in sync with waitqueues
modification, but we miss it in io_cqring_ev_posted*() apart from
cq_wait() case.

Take an smb_mb() out of wq_has_sleeper() making it waitqueue_active(),
and place it a few lines before, so it can synchronise other
waitqueue_active() as well.

The patch doesn't add any additional overhead, so even if there are
no problems currently, it's just safer to have it this way.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: dont kill fasync under completion_lock
Pavel Begunkov [Thu, 7 Jan 2021 03:15:42 +0000 (03:15 +0000)]
io_uring: dont kill fasync under completion_lock

      CPU0                    CPU1
       ----                    ----
  lock(&new->fa_lock);
                               local_irq_disable();
                               lock(&ctx->completion_lock);
                               lock(&new->fa_lock);
  <Interrupt>
    lock(&ctx->completion_lock);

 *** DEADLOCK ***

Move kill_fasync() out of io_commit_cqring() to io_cqring_ev_posted(),
so it doesn't hold completion_lock while doing it. That saves from the
reported deadlock, and it's just nice to shorten the locking time and
untangle nested locks (compl_lock -> wq_head::lock).

Reported-by: syzbot+91ca3f25bd7f795f019c@syzkaller.appspotmail.com
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: trigger eventfd for IOPOLL
Pavel Begunkov [Thu, 7 Jan 2021 03:15:41 +0000 (03:15 +0000)]
io_uring: trigger eventfd for IOPOLL

Make sure io_iopoll_complete() tries to wake up eventfd, which currently
is skipped together with io_cqring_ev_posted() for non-SQPOLL IOPOLL.

Add an iopoll version of io_cqring_ev_posted(), duplicates a bit of
code, but they actually use different sets of wait queues may be for
better.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: Fix return value from alloc_fixed_file_ref_node
Matthew Wilcox (Oracle) [Wed, 6 Jan 2021 16:09:26 +0000 (16:09 +0000)]
io_uring: Fix return value from alloc_fixed_file_ref_node

alloc_fixed_file_ref_node() currently returns an ERR_PTR on failure.
io_sqe_files_unregister() expects it to return NULL and since it can only
return -ENOMEM, it makes more sense to change alloc_fixed_file_ref_node()
to behave that way.

Fixes: 1ffc54220c44 ("io_uring: fix io_sqe_files_unregister() hangs")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: Delete useless variable ‘id’ in io_prep_async_work
Ye Bin [Tue, 5 Jan 2021 13:53:40 +0000 (21:53 +0800)]
io_uring: Delete useless variable ‘id’ in io_prep_async_work

Fix follow warning:
fs/io_uring.c:1523:22: warning: variable ‘id’ set but not used
[-Wunused-but-set-variable]
  struct io_identity *id;
                        ^~
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ye Bin <yebin10@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: cancel more aggressively in exit_work
Pavel Begunkov [Mon, 4 Jan 2021 20:43:30 +0000 (20:43 +0000)]
io_uring: cancel more aggressively in exit_work

While io_ring_exit_work() is running new requests of all sorts may be
issued, so it should do a bit more to cancel them, otherwise they may
just get stuck. e.g. in io-wq, in poll lists, etc.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: drop file refs after task cancel
Pavel Begunkov [Mon, 4 Jan 2021 20:43:29 +0000 (20:43 +0000)]
io_uring: drop file refs after task cancel

io_uring fds marked O_CLOEXEC and we explicitly cancel all requests
before going through exec, so we don't want to leave task's file
references to not our anymore io_uring instances.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: patch up IOPOLL overflow_flush sync
Pavel Begunkov [Mon, 4 Jan 2021 20:36:36 +0000 (20:36 +0000)]
io_uring: patch up IOPOLL overflow_flush sync

IOPOLL skips completion locking but keeps it under uring_lock, thus
io_cqring_overflow_flush() and so io_cqring_events() need additional
locking with uring_lock in some cases for IOPOLL.

Remove __io_cqring_overflow_flush() from io_cqring_events(), introduce a
wrapper around flush doing needed synchronisation and call it by hand.

Cc: stable@vger.kernel.org # 5.5+
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: synchronise IOPOLL on task_submit fail
Pavel Begunkov [Mon, 4 Jan 2021 20:36:35 +0000 (20:36 +0000)]
io_uring: synchronise IOPOLL on task_submit fail

io_req_task_submit() might be called for IOPOLL, do the fail path under
uring_lock to comply with IOPOLL synchronisation based solely on it.

Cc: stable@vger.kernel.org # 5.5+
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agokernel/io_uring: cancel io_uring before task works
Pavel Begunkov [Wed, 30 Dec 2020 21:34:16 +0000 (21:34 +0000)]
kernel/io_uring: cancel io_uring before task works

For cancelling io_uring requests it needs either to be able to run
currently enqueued task_works or having it shut down by that moment.
Otherwise io_uring_cancel_files() may be waiting for requests that won't
ever complete.

Go with the first way and do cancellations before setting PF_EXITING and
so before putting the task_work infrastructure into a transition state
where task_work_run() would better not be called.

Cc: stable@vger.kernel.org # 5.5+
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: fix io_sqe_files_unregister() hangs
Pavel Begunkov [Wed, 30 Dec 2020 21:34:15 +0000 (21:34 +0000)]
io_uring: fix io_sqe_files_unregister() hangs

io_sqe_files_unregister() uninterruptibly waits for enqueued ref nodes,
however requests keeping them may never complete, e.g. because of some
userspace dependency. Make sure it's interruptible otherwise it would
hang forever.

Cc: stable@vger.kernel.org # 5.6+
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: add a helper for setting a ref node
Pavel Begunkov [Wed, 30 Dec 2020 21:34:14 +0000 (21:34 +0000)]
io_uring: add a helper for setting a ref node

Setting a new reference node to a file data is not trivial, don't repeat
it, add and use a helper.

Cc: stable@vger.kernel.org # 5.6+
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoio_uring: don't assume mm is constant across submits
Jens Axboe [Tue, 29 Dec 2020 17:50:46 +0000 (10:50 -0700)]
io_uring: don't assume mm is constant across submits

If we COW the identity, we assume that ->mm never changes. But this
isn't true of multiple processes end up sharing the ring. Hence treat
id->mm like like any other process compontent when it comes to the
identity mapping. This is pretty trivial, just moving the existing grab
into io_grab_identity(), and including a check for the match.

Cc: stable@vger.kernel.org # 5.10
Fixes: 1e6fa5216a0e ("io_uring: COW io_identity on mismatch")
Reported-by: Christian Brauner <christian.brauner@ubuntu.com>:
Tested-by: Christian Brauner <christian.brauner@ubuntu.com>:
Signed-off-by: Jens Axboe <axboe@kernel.dk>
3 years agoLinux 5.11-rc1
Linus Torvalds [Sun, 27 Dec 2020 23:30:22 +0000 (15:30 -0800)]
Linux 5.11-rc1

3 years agoproc mountinfo: make splice available again
Linus Torvalds [Sun, 27 Dec 2020 18:56:33 +0000 (10:56 -0800)]
proc mountinfo: make splice available again

Since commit 36e2c7421f02 ("fs: don't allow splice read/write without
explicit ops") we've required that file operation structures explicitly
enable splice support, rather than falling back to the default handlers.

Most /proc files use the indirect 'struct proc_ops' to describe their
file operations, and were fixed up to support splice earlier in commits
40be821d627c..b24c30c67863, but the mountinfo files interact with the
VFS directly using their own 'struct file_operations' and got missed as
a result.

This adds the necessary support for splice to work for /proc/*/mountinfo
and friends.

Reported-by: Joan Bruguera Micó <joanbrugueram@gmail.com>
Reported-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=209971
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoMerge tag 'ntb-5.11' of git://github.com/jonmason/ntb
Linus Torvalds [Sun, 27 Dec 2020 17:22:55 +0000 (09:22 -0800)]
Merge tag 'ntb-5.11' of git://github.com/jonmason/ntb

Pull NTB fixes from Jon Mason:
 "Bug fix for IDT NTB and Intel NTB LTR management support"

* tag 'ntb-5.11' of git://github.com/jonmason/ntb:
  ntb: intel: add Intel NTB LTR vendor support for gen4 NTB
  ntb: idt: fix error check in ntb_hw_idt.c

3 years agoMerge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Sun, 27 Dec 2020 17:14:32 +0000 (09:14 -0800)]
Merge branch 'linus' of git://git./linux/kernel/git/herbert/crypto-2.6

Pull crypto fixes from Herbert Xu:
 "Fix a number of autobuild failures due to missing Kconfig
  dependencies"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: qat - add CRYPTO_AES to Kconfig dependencies
  crypto: keembay - Add dependency on HAS_IOMEM
  crypto: keembay - CRYPTO_DEV_KEEMBAY_OCS_AES_SM4 should depend on ARCH_KEEMBAY

3 years agoMerge tag 'objtool-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 27 Dec 2020 17:08:23 +0000 (09:08 -0800)]
Merge tag 'objtool-urgent-2020-12-27' of git://git./linux/kernel/git/tip/tip

Pull objtool fix from Ingo Molnar:
 "Fix a segfault that occurs when built with Clang"

* tag 'objtool-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Fix seg fault with Clang non-section symbols

3 years agoMerge tag 'locking-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 27 Dec 2020 17:06:10 +0000 (09:06 -0800)]
Merge tag 'locking-urgent-2020-12-27' of git://git./linux/kernel/git/tip/tip

Pull locking fixes from Ingo Molnar:
 "Misc fixes/updates:

   - Fix static keys usage in module __init sections

   - Add separate MAINTAINERS entry for static branches/calls

   - Fix lockdep splat with CONFIG_PREEMPTIRQ_EVENTS=y tracing"

* tag 'locking-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  softirq: Avoid bad tracing / lockdep interaction
  jump_label/static_call: Add MAINTAINERS
  jump_label: Fix usage in module __init

3 years agoMerge tag 'timers-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 27 Dec 2020 17:03:41 +0000 (09:03 -0800)]
Merge tag 'timers-urgent-2020-12-27' of git://git./linux/kernel/git/tip/tip

Pull timer fixes from Ingo Molnar:
 "Update/fix two CPU sanity checks in the hotplug and the boot code, and
  fix a typo in the Kconfig help text.

  [ Context: the first two commits are the result of an ongoing
    annotation+review work of (intentional) tick_do_timer_cpu() data
    races reported by KCSAN, but the annotations aren't fully cooked
    yet ]"

* tag 'timers-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timekeeping: Fix spelling mistake in Kconfig "fullfill" -> "fulfill"
  tick/sched: Remove bogus boot "safety" check
  tick: Remove pointless cpu valid check in hotplug code

3 years agoMerge tag 'sched-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 27 Dec 2020 17:00:47 +0000 (09:00 -0800)]
Merge tag 'sched-urgent-2020-12-27' of git://git./linux/kernel/git/tip/tip

Pull scheduler fix from Ingo Molnar:
 "Fix a context switch performance regression"

* tag 'sched-urgent-2020-12-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Optimize finish_lock_switch()

3 years agomfd: ab8500-debugfs: Remove extraneous seq_putc
Linus Torvalds [Sat, 26 Dec 2020 17:19:49 +0000 (09:19 -0800)]
mfd: ab8500-debugfs: Remove extraneous seq_putc

Commit c9a3c4e637ac ("mfd: ab8500-debugfs: Remove extraneous curly
brace") removed a left-over curly brace that caused build failures, but
Joe Perches points out that the subsequent 'seq_putc()' should also be
removed, because the commit that caused all these problems already added
the final '\n' to the seq_printf() above it.

Reported-by: Joe Perches <joe@perches.com>
Fixes: 886c8121659d ("mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc")
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoMerge tag 'pci-v5.11-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...
Linus Torvalds [Sat, 26 Dec 2020 04:17:40 +0000 (20:17 -0800)]
Merge tag 'pci-v5.11-fixes-1' of git://git./linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:

 - Fix a tegra enumeration regression (Rob Herring)

 - Fix a designware-host check that warned on *success*, not failure
   (Alexander Lobakin)

* tag 'pci-v5.11-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: dwc: Fix inverted condition of DMA mask setup warning
  PCI: tegra: Fix host link initialization

3 years agomfd: ab8500-debugfs: Remove extraneous curly brace
Nathan Chancellor [Sat, 26 Dec 2020 01:35:49 +0000 (18:35 -0700)]
mfd: ab8500-debugfs: Remove extraneous curly brace

Clang errors:

  drivers/mfd/ab8500-debugfs.c:1526:2: error: non-void function does not return a value [-Werror,-Wreturn-type]
          }
          ^
  drivers/mfd/ab8500-debugfs.c:1528:2: error: expected identifier or '('
  return 0;
          ^
  drivers/mfd/ab8500-debugfs.c:1529:1: error: extraneous closing brace ('}')
  }
  ^
  3 errors generated.

The cleanup in ab8500_interrupts_show left a curly brace around, remove
it to fix the error.

Fixes: 886c8121659d ("mfd: ab8500-debugfs: Remove the racy fiddling with irq_desc")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoPCI: dwc: Fix inverted condition of DMA mask setup warning
Alexander Lobakin [Tue, 22 Dec 2020 15:07:43 +0000 (15:07 +0000)]
PCI: dwc: Fix inverted condition of DMA mask setup warning

Commit 660c486590aa ("PCI: dwc: Set 32-bit DMA mask for MSI target address
allocation") added dma_mask_set() call to explicitly set 32-bit DMA mask
for MSI message mapping, but for now it throws a warning on ret == 0, while
dma_set_mask() returns 0 in case of success.

Fix this by inverting the condition.

[bhelgaas: join string to make it greppable]
Fixes: 660c486590aa ("PCI: dwc: Set 32-bit DMA mask for MSI target address allocation")
Link: https://lore.kernel.org/r/20201222150708.67983-1-alobakin@pm.me
Signed-off-by: Alexander Lobakin <alobakin@pm.me>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
3 years agoPCI: tegra: Fix host link initialization
Rob Herring [Fri, 18 Dec 2020 14:39:05 +0000 (08:39 -0600)]
PCI: tegra: Fix host link initialization

Commit b9ac0f9dc8ea ("PCI: dwc: Move dw_pcie_setup_rc() to DWC common
code") broke enumeration of downstream devices on Tegra:

In non-working case (next-20201211):

  0001:00:00.0 PCI bridge: NVIDIA Corporation Device 1ad2 (rev a1)
  0001:01:00.0 SATA controller: Marvell Technology Group Ltd. Device 9171 (rev 13)
  0005:00:00.0 PCI bridge: NVIDIA Corporation Device 1ad0 (rev a1)

In working case (v5.10-rc7):

  0001:00:00.0 PCI bridge: Molex Incorporated Device 1ad2 (rev a1)
  0001:01:00.0 SATA controller: Marvell Technology Group Ltd. Device 9171 (rev 13)
  0005:00:00.0 PCI bridge: Molex Incorporated Device 1ad0 (rev a1)
  0005:01:00.0 PCI bridge: PLX Technology, Inc. Device 3380 (rev ab)
  0005:02:02.0 PCI bridge: PLX Technology, Inc. Device 3380 (rev ab)
  0005:03:00.0 USB controller: PLX Technology, Inc. Device 3380 (rev ab)

The problem seems to be dw_pcie_setup_rc() is now called twice before and
after the link up handling. The fix is to move Tegra's link up handling to
.start_link() function like other DWC drivers. Tegra is a bit more
complicated than others as it re-inits the whole DWC controller to retry
the link. With this, the initialization ordering is restored to match the
prior sequence.

Fixes: b9ac0f9dc8ea ("PCI: dwc: Move dw_pcie_setup_rc() to DWC common code")
Link: https://lore.kernel.org/r/20201218143905.1614098-1-robh@kernel.org
Reported-by: Mian Yousaf Kaukab <ykaukab@suse.de>
Tested-by: Mian Yousaf Kaukab <ykaukab@suse.de>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: Vidya Sagar <vidyas@nvidia.com>
3 years agodrm/amd/display: avoid uninitialized variable warning
Linus Torvalds [Fri, 25 Dec 2020 23:41:13 +0000 (15:41 -0800)]
drm/amd/display: avoid uninitialized variable warning

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: 110b055b2827 ("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: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoMerge tag 'perf-tools-2020-12-24' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 25 Dec 2020 19:07:34 +0000 (11:07 -0800)]
Merge tag 'perf-tools-2020-12-24' of git://git./linux/kernel/git/acme/linux

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
  ...

3 years agoMerge branch 'for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall...
Linus Torvalds [Fri, 25 Dec 2020 19:05:32 +0000 (11:05 -0800)]
Merge branch 'for-5.11' of git://git./linux/kernel/git/jlawall/linux

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

3 years agogenirq: Fix export of irq_to_desc() for powerpc KVM
Michael Ellerman [Fri, 25 Dec 2020 11:30:58 +0000 (22:30 +1100)]
genirq: Fix export of irq_to_desc() for powerpc KVM

Commit 64a1b95bb9fe ("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: 64a1b95bb9fe ("genirq: Restrict export of irq_to_desc()")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
3 years agoMerge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Fri, 25 Dec 2020 18:54:29 +0000 (10:54 -0800)]
Merge branch 'work.misc' of git://git./linux/kernel/git/viro/vfs

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

3 years agoMerge tag 'docs-5.11-2' of git://git.lwn.net/linux
Linus Torvalds [Thu, 24 Dec 2020 22:20:33 +0000 (14:20 -0800)]
Merge tag 'docs-5.11-2' of git://git.lwn.net/linux

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

3 years agoMerge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso...
Linus Torvalds [Thu, 24 Dec 2020 22:16:02 +0000 (14:16 -0800)]
Merge tag 'ext4_for_linus' of git://git./linux/kernel/git/tytso/ext4

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
  ...

3 years agoMerge tag 'Smack-for-5.11-io_uring-fix' of git://github.com/cschaufler/smack-next
Linus Torvalds [Thu, 24 Dec 2020 22:08:43 +0000 (14:08 -0800)]
Merge tag 'Smack-for-5.11-io_uring-fix' of git://github.com/cschaufler/smack-next

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

3 years agoMerge tag 'riscv-for-linus-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 24 Dec 2020 22:05:05 +0000 (14:05 -0800)]
Merge tag 'riscv-for-linus-5.11-rc1' of git://git./linux/kernel/git/riscv/linux

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

3 years agoMerge tag 'powerpc-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Thu, 24 Dec 2020 22:02:00 +0000 (14:02 -0800)]
Merge tag 'powerpc-5.11-2' of git://git./linux/kernel/git/powerpc/linux

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

3 years agoMerge tag 'irq-core-2020-12-23' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 24 Dec 2020 21:50:23 +0000 (13:50 -0800)]
Merge tag 'irq-core-2020-12-23' of git://git./linux/kernel/git/tip/tip

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()
  ...

3 years agoMerge tag 'efi_updates_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 24 Dec 2020 20:40:07 +0000 (12:40 -0800)]
Merge tag 'efi_updates_for_v5.11' of git://git./linux/kernel/git/tip/tip

Pull EFI updates from Borislav Petkov:
 "These got delayed due to a last minute ia64 build issue which got
  fixed in the meantime.

  EFI updates collected by Ard Biesheuvel:

   - Don't move BSS section around pointlessly in the x86 decompressor

   - Refactor helper for discovering the EFI secure boot mode

   - Wire up EFI secure boot to IMA for arm64

   - Some fixes for the capsule loader

   - Expose the RT_PROP table via the EFI test module

   - Relax DT and kernel placement restrictions on ARM

  with a few followup fixes:

   - fix the build breakage on IA64 caused by recent capsule loader
     changes

   - suppress a type mismatch build warning in the expansion of
     EFI_PHYS_ALIGN on ARM"

* tag 'efi_updates_for_v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: arm: force use of unsigned type for EFI_PHYS_ALIGN
  efi: ia64: disable the capsule loader
  efi: stub: get rid of efi_get_max_fdt_addr()
  efi/efi_test: read RuntimeServicesSupported
  efi: arm: reduce minimum alignment of uncompressed kernel
  efi: capsule: clean scatter-gather entries from the D-cache
  efi: capsule: use atomic kmap for transient sglist mappings
  efi: x86/xen: switch to efi_get_secureboot_mode helper
  arm64/ima: add ima_arch support
  ima: generalize x86/EFI arch glue for other EFI architectures
  efi: generalize efi_get_secureboot
  efi/libstub: EFI_GENERIC_STUB_INITRD_CMDLINE_LOADER should not default to yes
  efi/x86: Only copy the compressed kernel image in efi_relocate_kernel()
  efi/libstub/x86: simplify efi_is_native()

3 years agoMerge tag 'io_uring-5.11-2020-12-23' of git://git.kernel.dk/linux-block
Linus Torvalds [Thu, 24 Dec 2020 20:35:00 +0000 (12:35 -0800)]
Merge tag 'io_uring-5.11-2020-12-23' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "All straight fixes, or a prep patch for a fix, either bound for stable
  or fixing issues from this merge window. In particular:

   - Fix new shutdown op not breaking links on failure

   - Hold mm->mmap_sem for mm->locked_vm manipulation

   - Various cancelation fixes (me, Pavel)

   - Fix error path potential double ctx free (Pavel)

   - IOPOLL fixes (Xiaoguang)"

* tag 'io_uring-5.11-2020-12-23' of git://git.kernel.dk/linux-block:
  io_uring: hold uring_lock while completing failed polled io in io_wq_submit_work()
  io_uring: fix double io_uring free
  io_uring: fix ignoring xa_store errors
  io_uring: end waiting before task cancel attempts
  io_uring: always progress task_work on task cancel
  io-wq: kill now unused io_wq_cancel_all()
  io_uring: make ctx cancel on exit targeted to actual ctx
  io_uring: fix 0-iov read buffer select
  io_uring: close a small race gap for files cancel
  io_uring: fix io_wqe->work_list corruption
  io_uring: limit {io|sq}poll submit locking scope
  io_uring: inline io_cqring_mark_overflow()
  io_uring: consolidate CQ nr events calculation
  io_uring: remove racy overflow list fast checks
  io_uring: cancel reqs shouldn't kill overflow list
  io_uring: hold mmap_sem for mm->locked_vm manipulation
  io_uring: break links on shutdown failure

3 years agoMerge tag 'block-5.11-2020-12-23' of git://git.kernel.dk/linux-block
Linus Torvalds [Thu, 24 Dec 2020 20:28:35 +0000 (12:28 -0800)]
Merge tag 'block-5.11-2020-12-23' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "A few stragglers in here, but mostly just straight fixes. In
  particular:

   - Set of rnbd fixes for issues around changes for the merge window
     (Gioh, Jack, Md Haris Iqbal)

   - iocost tracepoint addition (Baolin)

   - Copyright/maintainers update (Christoph)

   - Remove old blk-mq fast path CPU warning (Daniel)

   - loop max_part fix (Josh)

   - Remote IPI threaded IRQ fix (Sebastian)

   - dasd stable fixes (Stefan)

   - bcache merge window fixup and style fixup (Yi, Zheng)"

* tag 'block-5.11-2020-12-23' of git://git.kernel.dk/linux-block:
  md/bcache: convert comma to semicolon
  bcache:remove a superfluous check in register_bcache
  block: update some copyrights
  block: remove a pointless self-reference in block_dev.c
  MAINTAINERS: add fs/block_dev.c to the block section
  blk-mq: Don't complete on a remote CPU in force threaded mode
  s390/dasd: fix list corruption of lcu list
  s390/dasd: fix list corruption of pavgroup group list
  s390/dasd: prevent inconsistent LCU device data
  s390/dasd: fix hanging device offline processing
  blk-iocost: Add iocg idle state tracepoint
  nbd: Respect max_part for all partition scans
  block/rnbd-clt: Does not request pdu to rtrs-clt
  block/rnbd-clt: Dynamically allocate sglist for rnbd_iu
  block/rnbd: Set write-back cache and fua same to the target device
  block/rnbd: Fix typos
  block/rnbd-srv: Protect dev session sysfs removal
  block/rnbd-clt: Fix possible memleak
  block/rnbd-clt: Get rid of warning regarding size argument in strlcpy
  blk-mq: Remove 'running from the wrong CPU' warning

3 years agoMerge tag 'libnvdimm-for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdim...
Linus Torvalds [Thu, 24 Dec 2020 20:18:11 +0000 (12:18 -0800)]
Merge tag 'libnvdimm-for-5.11' of git://git./linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm updates from Dan Williams:
 "Twas the day before Christmas and the only thing stirring in libnvdimm
  / device-dax land is a pile of miscellaneous fixups and cleanups.

  The bulk of it has appeared in -next save the last two patches to
  device-dax that have passed my build and unit tests.

   - Fix a long standing block-window-namespace issue surfaced by the
     ndctl change to attempt to preserve the kernel device name over
     a 'reconfigure'

   - Fix a few error path memory leaks in nfit and device-dax

   - Silence a smatch warning in the ioctl path

   - Miscellaneous cleanups"

* tag 'libnvdimm-for-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  device-dax: Avoid an unnecessary check in alloc_dev_dax_range()
  device-dax: Fix range release
  device-dax: delete a redundancy check in dev_dax_validate_align()
  libnvdimm/label: Return -ENXIO for no slot in __blk_label_update
  device-dax/core: Fix memory leak when rmmod dax.ko
  device-dax/pmem: Convert comma to semicolon
  libnvdimm: Cleanup include of badblocks.h
  ACPI: NFIT: Fix input validation of bus-family
  libnvdimm/namespace: Fix reaping of invalidated block-window-namespace labels
  ACPI/nfit: avoid accessing uninitialized memory in acpi_nfit_ctl()

3 years agoMerge tag 'drm-next-2020-12-24' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Thu, 24 Dec 2020 20:14:29 +0000 (12:14 -0800)]
Merge tag 'drm-next-2020-12-24' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Xmas eve pull request present.

  Just some fixes that trickled in this past week: Mostly amdgpu fixes,
  with a dma-buf/mips build fix and some misc komeda fixes.

  dma-buf:
   - fix build on mips

  komeda:
   - fix commit tail operation order
   - NULL pointer fix
   - out of bounds access fix

  ttm:
   - remove an unused function

  amdgpu:
   - Vangogh SMU fixes
   - Arcturus gfx9 fixes
   - Misc display fixes
   - Sienna Cichlid SMU update
   - Fix S3 display memory leak
   - Fix regression caused by DP sub-connector support

  amdkfd:
   - Properly require pcie atomics for gfx10"

* tag 'drm-next-2020-12-24' of git://anongit.freedesktop.org/drm/drm: (31 commits)
  drm/amd/display: Fix memory leaks in S3 resume
  drm/amdgpu: Fix a copy-pasta comment
  drm/amdgpu: only set DP subconnector type on DP and eDP connectors
  drm/amd/pm: bump Sienna Cichlid smu_driver_if version to match latest pmfw
  drm/amd/display: add getter routine to retrieve mpcc mux
  drm/amd/display: always program DPPDTO unless not safe to lower
  drm/amd/display: [FW Promotion] Release 0.0.47
  drm/amd/display: updated wm table for Renoir
  drm/amd/display: Acquire DSC during split stream for ODM only if top_pipe
  drm/amd/display: Multi-display underflow observed
  drm/amd/display: Remove unnecessary NULL check
  drm/amd/display: Update RN/VGH active display count workaround
  drm/amd/display: change SMU repsonse timeout to 2s.
  drm/amd/display: gradually ramp ABM intensity
  drm/amd/display: To modify the condition in indicating branch device
  drm/amd/display: Modify the hdcp device count check condition
  drm/amd/display: Interfaces for hubp blank and soft reset
  drm/amd/display: handler not correctly checked at remove_irq_handler
  drm/amdgpu: check gfx pipe availability before toggling its interrupts
  drm/amdgpu: remove unnecessary asic type check
  ...

3 years agoMerge tag 'devicetree-fixes-for-5.11-1' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 24 Dec 2020 20:09:48 +0000 (12:09 -0800)]
Merge tag 'devicetree-fixes-for-5.11-1' of git://git./linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Correct the JSON pointer syntax in binding schemas

 - Drop unnecessary *-supply schema constraints

 - Drop redundant maxItems/items on array schemas

 - Fix various yamllint warnings

 - Fix various missing 'additionalProperties' properties

* tag 'devicetree-fixes-for-5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: Drop redundant maxItems/items
  dt-bindings: net: qcom,ipa: Drop unnecessary type ref on 'memory-region'
  dt-bindings: Drop unnecessary *-supply schemas properties
  dt-bindings/display: abt,y030xx067a: Fix binding
  dt-bindings: clock: imx8qxp-lpcg: eliminate yamllint warnings
  dt-bindings: display: eliminate yamllint warnings
  dt-bindings: media: nokia,smia: eliminate yamllint warnings
  dt-bindings: devapc: add the required property 'additionalProperties'
  dt-bindings: soc: add the required property 'additionalProperties'
  dt-bindings: serial: add the required property 'additionalProperties'
  dt-bindings: xlnx,vcu-settings: fix dt_binding_check warnings
  media: dt-bindings: coda: Add missing 'additionalProperties'
  dt-bindings: Fix JSON pointers

3 years agoMerge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Linus Torvalds [Thu, 24 Dec 2020 20:06:46 +0000 (12:06 -0800)]
Merge tag 'for_linus' of git://git./linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:

 - vdpa sim refactoring

 - virtio mem: Big Block Mode support

 - misc cleanus, fixes

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (61 commits)
  vdpa: Use simpler version of ida allocation
  vdpa: Add missing comment for virtqueue count
  uapi: virtio_ids: add missing device type IDs from OASIS spec
  uapi: virtio_ids.h: consistent indentions
  vhost scsi: fix error return code in vhost_scsi_set_endpoint()
  virtio_ring: Fix two use after free bugs
  virtio_net: Fix error code in probe()
  virtio_ring: Cut and paste bugs in vring_create_virtqueue_packed()
  tools/virtio: add barrier for aarch64
  tools/virtio: add krealloc_array
  tools/virtio: include asm/bug.h
  vdpa/mlx5: Use write memory barrier after updating CQ index
  vdpa: split vdpasim to core and net modules
  vdpa_sim: split vdpasim_virtqueue's iov field in out_iov and in_iov
  vdpa_sim: make vdpasim->buffer size configurable
  vdpa_sim: use kvmalloc to allocate vdpasim->buffer
  vdpa_sim: set vringh notify callback
  vdpa_sim: add set_config callback in vdpasim_dev_attr
  vdpa_sim: add get_config callback in vdpasim_dev_attr
  vdpa_sim: make 'config' generic and usable for any device type
  ...

3 years agoMerge branch 'for-5.11/dax' into for-5.11/libnvdimm
Dan Williams [Thu, 24 Dec 2020 18:14:04 +0000 (10:14 -0800)]
Merge branch 'for-5.11/dax' into for-5.11/libnvdimm

Pull in miscellaneous device-dax fixups and cleanups for v5.11.

3 years agodevice-dax: Avoid an unnecessary check in alloc_dev_dax_range()
Zhen Lei [Sat, 19 Dec 2020 08:18:40 +0000 (16:18 +0800)]
device-dax: Avoid an unnecessary check in alloc_dev_dax_range()

Swap the calling sequence of krealloc() and __request_region(), call the
latter first. In this way, the value of dev_dax->nr_range does not need to
be considered when __request_region() failed.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/20201219081840.1149-2-thunder.leizhen@huawei.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
3 years agodevice-dax: Fix range release
Dan Williams [Sat, 19 Dec 2020 02:41:41 +0000 (18:41 -0800)]
device-dax: Fix range release

There are multiple locations that open-code the release of the last
range in a device-dax instance. Consolidate this into a new
dev_dax_trim_range() helper.

This also addresses a kmemleak report:

# cat /sys/kernel/debug/kmemleak
[..]
unreferenced object 0xffff976bd46f6240 (size 64):
   comm "ndctl", pid 23556, jiffies 4299514316 (age 5406.733s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 00 20 c3 37 00 00 00  .......... .7...
     ff ff ff 7f 38 00 00 00 00 00 00 00 00 00 00 00  ....8...........
   backtrace:
     [<00000000064003cf>] __kmalloc_track_caller+0x136/0x379
     [<00000000d85e3c52>] krealloc+0x67/0x92
     [<00000000d7d3ba8a>] __alloc_dev_dax_range+0x73/0x25c
     [<0000000027d58626>] devm_create_dev_dax+0x27d/0x416
     [<00000000434abd43>] __dax_pmem_probe+0x1c9/0x1000 [dax_pmem_core]
     [<0000000083726c1c>] dax_pmem_probe+0x10/0x1f [dax_pmem]
     [<00000000b5f2319c>] nvdimm_bus_probe+0x9d/0x340 [libnvdimm]
     [<00000000c055e544>] really_probe+0x230/0x48d
     [<000000006cabd38e>] driver_probe_device+0x122/0x13b
     [<0000000029c7b95a>] device_driver_attach+0x5b/0x60
     [<0000000053e5659b>] bind_store+0xb7/0xc3
     [<00000000d3bdaadc>] drv_attr_store+0x27/0x31
     [<00000000949069c5>] sysfs_kf_write+0x4a/0x57
     [<000000004a8b5adf>] kernfs_fop_write+0x150/0x1e5
     [<00000000bded60f0>] __vfs_write+0x1b/0x34
     [<00000000b92900f0>] vfs_write+0xd8/0x1d1

Reported-by: Jane Chu <jane.chu@oracle.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/r/160834570161.1791850.14911670304441510419.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
3 years agoperf probe: Fix memory leak when synthesizing SDT probes
Arnaldo Carvalho de Melo [Thu, 24 Dec 2020 13:52:10 +0000 (10:52 -0300)]
perf probe: Fix memory leak when synthesizing SDT probes

The argv_split() function must be paired with argv_free(), else we must
keep a reference to the argv array received or do the freeing ourselves,
in synthesize_sdt_probe_command() we were simply leaking that argv[]
array.

Fixes: 3b1f8311f6963cd1 ("perf probe: Add sdt probes arguments into the uprobe cmd string")
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Truong <alexandre.truong@arm.com>
Cc: Alexis Berlemont <alexis.berlemont@gmail.com>
Cc: He Zhe <zhe.he@windriver.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20201224135139.GF477817@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf stat aggregation: Add separate thread member
James Clark [Thu, 26 Nov 2020 14:13:28 +0000 (16:13 +0200)]
perf stat aggregation: Add separate thread member

A separate field isn't strictly required. The core field could be
re-used for thread IDs as a single field was used previously.

But separating them will avoid confusion and catch potential errors
where core IDs are read as thread IDs and vice versa.

Also remove the placeholder id field which is now no longer used.

Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20201126141328.6509-13-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf stat aggregation: Add separate core member
James Clark [Thu, 26 Nov 2020 14:13:27 +0000 (16:13 +0200)]
perf stat aggregation: Add separate core member

Add core as a separate member so that it doesn't have to be packed into
the int value.

Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20201126141328.6509-12-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf stat aggregation: Add separate die member
James Clark [Thu, 26 Nov 2020 14:13:26 +0000 (16:13 +0200)]
perf stat aggregation: Add separate die member

Add die as a separate member so that it doesn't have to be packed into
the int value.

Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20201126141328.6509-11-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf stat aggregation: Add separate socket member
James Clark [Thu, 26 Nov 2020 14:13:25 +0000 (16:13 +0200)]
perf stat aggregation: Add separate socket member

Add socket as a separate member so that it doesn't have to be packed
into the int value.

When the socket ID was larger than 8 bits the output appeared corrupted
or incomplete.

For example, here on ThunderX2 'perf stat' reports a socket of -1 and an
invalid die number:

  ./perf stat -a --per-die
  The socket id number is too big.

  Performance counter stats for 'system wide':

  S-1-D255       128             687.99 msec cpu-clock                 #   57.240 CPUs utilized
  ...
  S36-D0         128             842.34 msec cpu-clock                 #   70.081 CPUs utilized
  ...

And with --per-core there is an entry with an invalid core ID:

  ./perf stat record -a --per-core
  The socket id number is too big.

  Performance counter stats for 'system wide':
  S-1-D255-C65535     128             671.04 msec cpu-clock                 #   54.112 CPUs utilized
  ...
  S36-D0-C0           4              28.27 msec cpu-clock                 #    2.279 CPUs utilized
  ...

This fixes the "Session topology" self test on ThunderX2.

After this fix the output contains the correct socket and die IDs and no
longer prints a warning about the size of the socket ID:

  ./perf stat --per-die -a

  Performance counter stats for 'system wide':

  S36-D0         128         169,869.39 msec cpu-clock                 #  127.501 CPUs utilized
  ...
  S3612-D0         128         169,733.05 msec cpu-clock                 #  127.398 CPUs utilized

Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20201126141328.6509-10-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf stat aggregation: Add separate node member
James Clark [Thu, 26 Nov 2020 14:13:24 +0000 (16:13 +0200)]
perf stat aggregation: Add separate node member

Add node as a separate member so that it doesn't have to be packed into
the int value.

Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20201126141328.6509-9-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf stat aggregation: Start using cpu_aggr_id in map
James Clark [Thu, 26 Nov 2020 14:13:23 +0000 (16:13 +0200)]
perf stat aggregation: Start using cpu_aggr_id in map

Use the new cpu_aggr_id struct in the cpu map instead of int so that it
can store more data.

No functional changes.

Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20201126141328.6509-8-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf cpumap: Drop in cpu_aggr_map struct
James Clark [Thu, 26 Nov 2020 14:13:22 +0000 (16:13 +0200)]
perf cpumap: Drop in cpu_aggr_map struct

Replace usages of perf_cpu_map with cpu_aggr map in places that are
involved with 'perf stat' aggregation.

This will then later be changed to be a map of cpu_aggr_id rather than
an int so that more data can be stored.

No functional changes.

Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20201126141328.6509-7-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf cpumap: Add new map type for aggregation
James Clark [Thu, 26 Nov 2020 14:13:21 +0000 (16:13 +0200)]
perf cpumap: Add new map type for aggregation

Currently this is a duplicate of perf_cpu_map so that it can be used as
a drop in replacement.

In a later commit it will be changed from a map of ints to use the new
cpu_aggr_id struct.

No functional changes.

Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20201126141328.6509-6-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf stat: Replace aggregation ID with a struct
James Clark [Thu, 26 Nov 2020 14:13:20 +0000 (16:13 +0200)]
perf stat: Replace aggregation ID with a struct

Replace all occurences of the usage of int with the new struct
cpu_aggr_id.

No functional changes.

Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20201126141328.6509-5-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf cpumap: Add new struct for cpu aggregation
James Clark [Thu, 26 Nov 2020 14:13:19 +0000 (16:13 +0200)]
perf cpumap: Add new struct for cpu aggregation

This struct currently has only a single int member so that it can be
used as a drop in replacement for the existing behaviour.

Comparison and constructor functions have also been added that will
replace usages of '==' and '= -1'.

No functional changes.

Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20201126141328.6509-4-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf cpumap: Use existing allocator to avoid using malloc
James Clark [Thu, 26 Nov 2020 14:13:18 +0000 (16:13 +0200)]
perf cpumap: Use existing allocator to avoid using malloc

Use the existing allocator for perf_cpu_map to avoid use of raw malloc.
This could cause an issue in later commits where the size of
perf_cpu_map is changed.

No functional changes.

Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20201126141328.6509-3-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf tests: Improve topology test to check all aggregation types
James Clark [Thu, 26 Nov 2020 14:13:17 +0000 (16:13 +0200)]
perf tests: Improve topology test to check all aggregation types

Improve the topology test to check all aggregation types. This is to
lock down the behaviour before 'id' is changed into a struct in later
commits.

Committer testing:

  $ perf test topology
  41: Session topology: Ok
  $

  $ perf test -v topology
  41: Session topology:
  --- start ---
  test child forked, pid 965552
  templ file: /tmp/perf-test-mO7NtI
  Problems creating module maps, continuing anyway...
  CPU 0, core 0, socket 0
  CPU 1, core 1, socket 0
  CPU 2, core 2, socket 0
  CPU 3, core 4, socket 0
  CPU 4, core 5, socket 0
  CPU 5, core 6, socket 0
  CPU 6, core 8, socket 0
  CPU 7, core 9, socket 0
  CPU 8, core 10, socket 0
  CPU 9, core 12, socket 0
  CPU 10, core 13, socket 0
  CPU 11, core 14, socket 0
  CPU 12, core 0, socket 0
  CPU 13, core 1, socket 0
  CPU 14, core 2, socket 0
  CPU 15, core 4, socket 0
  CPU 16, core 5, socket 0
  CPU 17, core 6, socket 0
  CPU 18, core 8, socket 0
  CPU 19, core 9, socket 0
  CPU 20, core 10, socket 0
  CPU 21, core 12, socket 0
  CPU 22, core 13, socket 0
  CPU 23, core 14, socket 0
  test child finished with 0
  ---- end ----
  Session topology: Ok
  $

Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20201126141328.6509-2-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf tools: Update s390's syscall.tbl copy from the kernel sources
Tiezhu Yang [Wed, 23 Dec 2020 16:24:35 +0000 (13:24 -0300)]
perf tools: Update s390's syscall.tbl copy from the kernel sources

This silences the following tools/perf/ build warning:

  Warning: Kernel ABI header at 'tools/perf/arch/s390/entry/syscalls/syscall.tbl' differs from latest version at 'arch/s390/kernel/syscalls/syscall.tbl'

Just make them same:

  cp arch/s390/kernel/syscalls/syscall.tbl tools/perf/arch/s390/entry/syscalls/syscall.tbl

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Reviewed-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xuefeng Li <lixuefeng@loongson.cn>
Link: http://lore.kernel.org/lkml/1608278364-6733-5-git-send-email-yangtiezhu@loongson.cn
[ There were updates after Tiezhu's post, so I just updated the copy ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf tools: Update powerpc's syscall.tbl copy from the kernel sources
Tiezhu Yang [Wed, 23 Dec 2020 16:13:16 +0000 (13:13 -0300)]
perf tools: Update powerpc's syscall.tbl copy from the kernel sources

This silences the following tools/perf/ build warning:

  Warning: Kernel ABI header at 'tools/perf/arch/powerpc/entry/syscalls/syscall.tbl' differs from latest version at 'arch/powerpc/kernel/syscalls/syscall.tbl'

Just make them same:

  cp arch/powerpc/kernel/syscalls/syscall.tbl tools/perf/arch/powerpc/entry/syscalls/syscall.tbl

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Reviewed-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xuefeng Li <lixuefeng@loongson.cn>
Link: http://lore.kernel.org/lkml/1608278364-6733-4-git-send-email-yangtiezhu@loongson.cn
[ There were updates after Tiezhu's post, so I just updated the copy ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf s390: Move syscall.tbl check into check-headers.sh
Tiezhu Yang [Fri, 18 Dec 2020 07:59:22 +0000 (15:59 +0800)]
perf s390: Move syscall.tbl check into check-headers.sh

It is better to check syscall.tbl for s390 in check-headers.sh, it is
similar with commit c9b51a017065 ("perf tools: Move syscall_64.tbl check
into check-headers.sh").

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Reviewed-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xuefeng Li <lixuefeng@loongson.cn>
Link: http://lore.kernel.org/lkml/1608278364-6733-3-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoperf powerpc: Move syscall.tbl check to check-headers.sh
Tiezhu Yang [Fri, 18 Dec 2020 07:59:21 +0000 (15:59 +0800)]
perf powerpc: Move syscall.tbl check to check-headers.sh

It is better to check syscall.tbl for powerpc in check-headers.sh, it is
similar with commit c9b51a017065 ("perf tools: Move syscall_64.tbl check
into check-headers.sh").

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Reviewed-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xuefeng Li <lixuefeng@loongson.cn>
Link: http://lore.kernel.org/lkml/1608278364-6733-2-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools headers UAPI: Synch KVM's svm.h header with the kernel
Arnaldo Carvalho de Melo [Mon, 21 Dec 2020 23:04:45 +0000 (20:04 -0300)]
tools headers UAPI: Synch KVM's svm.h header with the kernel

To pick up the changes from:

  d1949b93c60504b3 ("KVM: SVM: Add support for CR8 write traps for an SEV-ES guest")
  5b51cb13160ae0ba ("KVM: SVM: Add support for CR4 write traps for an SEV-ES guest")
  f27ad38aac23263c ("KVM: SVM: Add support for CR0 write traps for an SEV-ES guest")
  2985afbcdbb1957a ("KVM: SVM: Add support for EFER write traps for an SEV-ES guest")
  291bd20d5d88814a ("KVM: SVM: Add initial support for a VMGEXIT VMEXIT")

Picking these new SVM exit reasons:

  + { SVM_EXIT_EFER_WRITE_TRAP, "write_efer_trap" }, \
  + { SVM_EXIT_CR0_WRITE_TRAP, "write_cr0_trap" }, \
  + { SVM_EXIT_CR4_WRITE_TRAP, "write_cr4_trap" }, \
  + { SVM_EXIT_CR8_WRITE_TRAP, "write_cr8_trap" }, \
  + { SVM_EXIT_VMGEXIT, "vmgexit" }, \
  + { SVM_VMGEXIT_MMIO_READ, "vmgexit_mmio_read" }, \
  + { SVM_VMGEXIT_MMIO_WRITE, "vmgexit_mmio_write" }, \
  + { SVM_VMGEXIT_NMI_COMPLETE, "vmgexit_nmi_complete" }, \
  + { SVM_VMGEXIT_AP_HLT_LOOP, "vmgexit_ap_hlt_loop" }, \
  + { SVM_VMGEXIT_AP_JUMP_TABLE, "vmgexit_ap_jump_table" }, \

And address this perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/svm.h' differs from latest version at 'arch/x86/include/uapi/asm/svm.h'
  diff -u tools/arch/x86/include/uapi/asm/svm.h arch/x86/include/uapi/asm/svm.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools kvm headers: Update KVM headers from the kernel sources
Arnaldo Carvalho de Melo [Mon, 21 Dec 2020 15:53:44 +0000 (12:53 -0300)]
tools kvm headers: Update KVM headers from the kernel sources

To pick the changes from:

  8d14797b53f044fd ("KVM: arm64: Move 'struct kvm_arch_memory_slot' out of uapi/")

That don't causes any changes in tooling, only addresses this perf build
warning:

  Warning: Kernel ABI header at 'tools/arch/arm64/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm64/include/uapi/asm/kvm.h'
  diff -u tools/arch/arm64/include/uapi/asm/kvm.h arch/arm64/include/uapi/asm/kvm.h

Cc: Marc Zyngier <maz@kernel.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools headers UAPI: Sync KVM's vmx.h header with the kernel sources
Arnaldo Carvalho de Melo [Mon, 21 Dec 2020 15:51:03 +0000 (12:51 -0300)]
tools headers UAPI: Sync KVM's vmx.h header with the kernel sources

To pick the changes in:

  bf0cd88ce363a2de ("KVM: x86: emulate wait-for-SIPI and SIPI-VMExit")

That makes 'perf kvm-stat' aware of this new SIPI_SIGNAL exit reason,
thus addressing the following perf build warning:

  Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/vmx.h' differs from latest version at 'arch/x86/include/uapi/asm/vmx.h'
  diff -u tools/arch/x86/include/uapi/asm/vmx.h arch/x86/include/uapi/asm/vmx.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Yadong Qi <yadong.qi@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools headers UAPI: Sync kvm.h headers with the kernel sources
Arnaldo Carvalho de Melo [Mon, 21 Dec 2020 12:20:52 +0000 (09:20 -0300)]
tools headers UAPI: Sync kvm.h headers with the kernel sources

To pick the changes in:

  fb04a1eddb1a65b6 ("KVM: X86: Implement ring-based dirty memory tracking")

That result in these change in tooling:

  $ tools/perf/trace/beauty/kvm_ioctl.sh > before
  $ cp include/uapi/linux/kvm.h tools/include/uapi/linux/kvm.h
  $ cp arch/x86/include/uapi/asm/kvm.h tools/arch/x86/include/uapi/asm/kvm.h
  $ tools/perf/trace/beauty/kvm_ioctl.sh > after
  $ diff -u before after
  --- before 2020-12-21 11:55:45.229737066 -0300
  +++ after 2020-12-21 11:55:56.379983393 -0300
  @@ -90,6 +90,7 @@
    [0xc0] = "CLEAR_DIRTY_LOG",
    [0xc1] = "GET_SUPPORTED_HV_CPUID",
    [0xc6] = "X86_SET_MSR_FILTER",
  + [0xc7] = "RESET_DIRTY_RINGS",
    [0xe0] = "CREATE_DEVICE",
    [0xe1] = "SET_DEVICE_ATTR",
    [0xe2] = "GET_DEVICE_ATTR",
  $

Now one can use that string in filters when tracing ioctls, etc.

And silences this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
  diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h
  Warning: Kernel ABI header at 'tools/arch/x86/include/uapi/asm/kvm.h' differs from latest version at 'arch/x86/include/uapi/asm/kvm.h'
  diff -u tools/arch/x86/include/uapi/asm/kvm.h arch/x86/include/uapi/asm/kvm.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools arch x86: Sync the msr-index.h copy with the kernel sources
Arnaldo Carvalho de Melo [Mon, 21 Dec 2020 12:07:36 +0000 (09:07 -0300)]
tools arch x86: Sync the msr-index.h copy with the kernel sources

To pick up the changes in:

Fixes: 69372cf01290b958 ("x86/cpu: Add VM page flush MSR availablility as a CPUID feature")
That cause these changes in tooling:

  $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before
  $ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
  $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after
  $ diff -u before after
  --- before 2020-12-21 09:09:05.593005003 -0300
  +++ after 2020-12-21 09:12:48.436994802 -0300
  @@ -21,7 +21,7 @@
    [0x0000004f] = "PPIN",
    [0x00000060] = "LBR_CORE_TO",
    [0x00000079] = "IA32_UCODE_WRITE",
  - [0x0000008b] = "IA32_UCODE_REV",
  + [0x0000008b] = "AMD64_PATCH_LEVEL",
    [0x0000008C] = "IA32_SGXLEPUBKEYHASH0",
    [0x0000008D] = "IA32_SGXLEPUBKEYHASH1",
    [0x0000008E] = "IA32_SGXLEPUBKEYHASH2",
  @@ -286,6 +286,7 @@
    [0xc0010114 - x86_AMD_V_KVM_MSRs_offset] = "VM_CR",
    [0xc0010115 - x86_AMD_V_KVM_MSRs_offset] = "VM_IGNNE",
    [0xc0010117 - x86_AMD_V_KVM_MSRs_offset] = "VM_HSAVE_PA",
  + [0xc001011e - x86_AMD_V_KVM_MSRs_offset] = "AMD64_VM_PAGE_FLUSH",
    [0xc001011f - x86_AMD_V_KVM_MSRs_offset] = "AMD64_VIRT_SPEC_CTRL",
    [0xc0010130 - x86_AMD_V_KVM_MSRs_offset] = "AMD64_SEV_ES_GHCB",
    [0xc0010131 - x86_AMD_V_KVM_MSRs_offset] = "AMD64_SEV",
  $

The new MSR has a pattern that wasn't matched to avoid a clash with
IA32_UCODE_REV, change the regex to prefer the more relevant AMD_
prefixed ones to catch this new AMD64_VM_PAGE_FLUSH MSR.

Which causes these parts of tools/perf/ to be rebuilt:

  CC       /tmp/build/perf/trace/beauty/tracepoints/x86_msr.o
  LD       /tmp/build/perf/trace/beauty/tracepoints/perf-in.o
  LD       /tmp/build/perf/trace/beauty/perf-in.o
  LD       /tmp/build/perf/perf-in.o
  LINK     /tmp/build/perf/perf

This addresses this perf tools build warning:

  diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h
  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h'

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools headers cpufeatures: Sync with the kernel sources
Arnaldo Carvalho de Melo [Mon, 21 Dec 2020 12:04:54 +0000 (09:04 -0300)]
tools headers cpufeatures: Sync with the kernel sources

To pick the changes in:

  69372cf01290b958 ("x86/cpu: Add VM page flush MSR availablility as a CPUID feature")
  e1b35da5e624f8b0 ("x86: Enumerate AVX512 FP16 CPUID feature flag")

That causes only these 'perf bench' objects to rebuild:

  CC       /tmp/build/perf/bench/mem-memcpy-x86-64-asm.o
  CC       /tmp/build/perf/bench/mem-memset-x86-64-asm.o

And addresses these perf build warnings:

  Warning: Kernel ABI header at 'tools/arch/x86/include/asm/cpufeatures.h' differs from latest version at 'arch/x86/include/asm/cpufeatures.h'
  diff -u tools/arch/x86/include/asm/cpufeatures.h arch/x86/include/asm/cpufeatures.h

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kyung Min Park <kyung.min.park@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agotools headers UAPI: Update epoll_pwait2 affected files
Arnaldo Carvalho de Melo [Mon, 21 Dec 2020 12:03:04 +0000 (09:03 -0300)]
tools headers UAPI: Update epoll_pwait2 affected files

To pick the changes from:

  b0a0c2615f6f199a ("epoll: wire up syscall epoll_pwait2")

That addresses these perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
  diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
  Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
  diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3 years agoscripts: coccicheck: Correct usage of make coccicheck
Sumera Priyadarsini [Tue, 24 Nov 2020 20:32:12 +0000 (02:02 +0530)]
scripts: coccicheck: Correct usage of make coccicheck

The command "make coccicheck C=1 CHECK=scripts/coccicheck" results in the
error:
        ./scripts/coccicheck: line 65: -1: shift count out of range

This happens because every time the C variable is specified,
the shell arguments need to be "shifted" in order to take only
the last argument, which is the C file to test. These shell arguments
mostly comprise flags that have been set in the Makefile. However,
when coccicheck is specified in the make command as a rule, the
number of shell arguments is zero, thus passing the invalid value -1
to the shift command, resulting in an error.

Modify coccicheck to print correct usage of make coccicheck so as to
avoid the error.

Signed-off-by: Sumera Priyadarsini <sylphrenadin@gmail.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
3 years agococcinelle: update expiring email addresses
Julia Lawall [Thu, 24 Dec 2020 11:45:18 +0000 (12:45 +0100)]
coccinelle: update expiring email addresses

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
3 years agoMerge tag 'amd-drm-fixes-5.11-2020-12-23' of git://people.freedesktop.org/~agd5f...
Dave Airlie [Thu, 24 Dec 2020 00:31:15 +0000 (10:31 +1000)]
Merge tag 'amd-drm-fixes-5.11-2020-12-23' of git://people.freedesktop.org/~agd5f/linux into drm-next

amd-drm-fixes-5.11-2020-12-23:

amdgpu:
- Vangogh SMU fixes
- Arcturus gfx9 fixes
- Misc display fixes
- Sienna Cichlid SMU update
- Fix S3 display memory leak
- Fix regression caused by DP sub-connector support

amdkfd:
- Properly require pcie atomics for gfx10

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201223204752.4019-1-alexander.deucher@amd.com
3 years agoMerge tag 'drm-misc-next-fixes-2020-12-22' of git://anongit.freedesktop.org/drm/drm...
Dave Airlie [Thu, 24 Dec 2020 00:08:10 +0000 (10:08 +1000)]
Merge tag 'drm-misc-next-fixes-2020-12-22' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

Short summary of fixes pull:

 * dma-buf: Include <linux/vmalloc.h> for building on MIPS
 * komeda: Fix order of operation in commit tail; Fix NULL-pointer and
           out-of-bounds access; Cleanups
 * ttm: Fix an unused-function warning

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/X+JFYlW1SEZa6ShA@linux-uq9g
3 years agoMerge tag 'sound-fix-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Wed, 23 Dec 2020 23:11:08 +0000 (15:11 -0800)]
Merge tag 'sound-fix-5.11-rc1' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes that came up recently for 5.11.

  The majority of fixes are usual HD-audio and USB-audio quirks, with a
  few PCM core fixes for addressing the information leak and yet more
  UBSAN fixes in the core side"

* tag 'sound-fix-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA/hda: apply jack fixup for the Acer Veriton N4640G/N6640G/N2510G
  ALSA: hda/realtek: Apply jack fixup for Quanta NL3
  ALSA: usb-audio: Add implicit feeback support for the BOSS GT-1
  ALSA: usb-audio: Add alias entry for ASUS PRIME TRX40 PRO-S
  ALSA: core: Remove redundant comments
  ALSA: hda/realtek: Add quirk for MSI-GP73
  ALSA: pcm: oss: Fix a few more UBSAN fixes
  ALSA: pcm: Clear the full allocated memory at hw_params
  ALSA: memalloc: Align buffer allocations in page size
  ALSA: usb-audio: Disable sample read check if firmware doesn't give back
  ALSA: pcm: Remove snd_pcm_lib_preallocate_dma_free()
  ALSA: usb-audio: Add VID to support native DSD reproduction on FiiO devices
  ALSA: core: memalloc: add page alignment for iram
  ALSA: hda/realtek - Supported Dell fixed type headset
  ALSA: hda/realtek: Remove dummy lineout on Acer TravelMate P648/P658

3 years agoMerge tag 'tag-chrome-platform-for-v5.11' of git://git.kernel.org/pub/scm/linux/kerne...
Linus Torvalds [Wed, 23 Dec 2020 23:06:22 +0000 (15:06 -0800)]
Merge tag 'tag-chrome-platform-for-v5.11' of git://git./linux/kernel/git/chrome-platform/linux

Pull chrome platform updates from Benson Leung:
 "cros_ec_typec:

   - A series from Prashant for Type-C to implement TYPEC_STATUS,
     parsing USB PD Partner ID VDOs, and registering partner altmodes.

  cros_ec misc:

   - Don't treat RTC events as wakeup sources in cros_ec_proto"

* tag 'tag-chrome-platform-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
  platform/chrome: cros_ec_typec: Tolerate unrecognized mux flags
  platform/chrome: cros_ec_typec: Register partner altmodes
  platform/chrome: cros_ec_typec: Parse partner PD ID VDOs
  platform/chrome: cros_ec_typec: Introduce TYPEC_STATUS
  platform/chrome: cros_ec: Import Type C host commands
  platform/chrome: cros_ec_typec: Clear partner identity on device removal
  platform/chrome: cros_ec_typec: Fix remove partner logic
  platform/chrome: cros_ec_typec: Relocate set_port_params_v*() functions
  platform/chrome: Don't treat RTC events as wakeup sources

3 years agoMerge tag 'linux-watchdog-5.11-rc1' of git://www.linux-watchdog.org/linux-watchdog
Linus Torvalds [Wed, 23 Dec 2020 23:01:49 +0000 (15:01 -0800)]
Merge tag 'linux-watchdog-5.11-rc1' of git://linux-watchdog.org/linux-watchdog

Pull watchdog updates from Wim Van Sebroeck:

 - Removal of the pnx83xx driver

 - Add a binding for A100's watchdog controller

 - Add Rockchip compatibles to snps,dw-wdt.yaml

 - hpwdt: Disable NMI in Crash Kernel

 - Fix potential dereferencing of null pointer in watchdog_core

 - Several other small fixes and improvements

* tag 'linux-watchdog-5.11-rc1' of git://www.linux-watchdog.org/linux-watchdog: (23 commits)
  watchdog: convert comma to semicolon
  watchdog: iTCO_wdt: use dev_*() instead of pr_*() for logging
  dt-binding: watchdog: add Rockchip compatibles to snps,dw-wdt.yaml
  watchdog: coh901327: add COMMON_CLK dependency
  dt-bindings: watchdog: sun4i: Add A100 compatible
  watchdog: qcom: Avoid context switch in restart handler
  watchdog: iTCO_wdt: use module_platform_device() macro
  watchdog: Fix potential dereferencing of null pointer
  watchdog: wdat_wdt: Fix missing kerneldoc reported by W=1
  watchdog/hpwdt: Reflect changes
  watchdog/hpwdt: Disable NMI in Crash Kernel
  wdt: sp805: add watchdog_stop on reboot
  watchdog: sbc_fitpc2_wdt: add __user annotations
  watchdog: geodewdt: remove unneeded break
  watchdog: rti-wdt: fix reference leak in rti_wdt_probe
  watchdog: qcom_wdt: set WDOG_HW_RUNNING bit when appropriate
  watchdog: remove pnx83xx driver
  watchdog: stm32_iwdg: don't print an error on probe deferral
  watchdog: sprd: change to use usleep_range() instead of busy loop
  watchdog: sprd: check busy bit before new loading rather than after that
  ...

3 years agodrm/amd/display: Fix memory leaks in S3 resume
Stylon Wang [Tue, 10 Nov 2020 07:40:06 +0000 (15:40 +0800)]
drm/amd/display: Fix memory leaks in S3 resume

EDID parsing in S3 resume pushes new display modes
to probed_modes list but doesn't consolidate to actual
mode list. This creates a race condition when
amdgpu_dm_connector_ddc_get_modes() re-initializes the
list head without walking the list and results in  memory leak.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=209987
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
3 years agodrm/amdgpu: Fix a copy-pasta comment
Alex Deucher [Fri, 18 Dec 2020 16:19:30 +0000 (11:19 -0500)]
drm/amdgpu: Fix a copy-pasta comment

This is not a scsi driver.

Reviewed-by: Nirmoy Das <nirmoy.das@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: only set DP subconnector type on DP and eDP connectors
Alex Deucher [Thu, 17 Dec 2020 17:11:36 +0000 (12:11 -0500)]
drm/amdgpu: only set DP subconnector type on DP and eDP connectors

Fixes a crash in drm_object_property_set_value() because the property
is not set for internal DP ports that connect to a bridge chips
(e.g., DP to VGA or DP to LVDS).

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=210739
Fixes: 65bf2cf95d3ade ("drm/amdgpu: utilize subconnector property for DP through atombios")
Tested-By: Kris Karas <bugs-a17@moonlit-rail.com>
Cc: Oleg Vasilev <oleg.vasilev@intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.10.x
3 years agodrm/amd/pm: bump Sienna Cichlid smu_driver_if version to match latest pmfw
Evan Quan [Fri, 18 Dec 2020 04:38:50 +0000 (12:38 +0800)]
drm/amd/pm: bump Sienna Cichlid smu_driver_if version to match latest pmfw

This can suppress the annoying but unharmful prompts.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: add getter routine to retrieve mpcc mux
Josip Pavic [Fri, 11 Dec 2020 05:09:11 +0000 (00:09 -0500)]
drm/amd/display: add getter routine to retrieve mpcc mux

[Why & How]
Add function to identify which MPCC is providing input to a specified OPP

Signed-off-by: Josip Pavic <Josip.Pavic@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: always program DPPDTO unless not safe to lower
Jake Wang [Fri, 11 Dec 2020 21:53:57 +0000 (16:53 -0500)]
drm/amd/display: always program DPPDTO unless not safe to lower

[Why]
We defer clock updates to after pipes have been programmed. In
some instances we use DPPCLK that have been previously set to be
"unused". This results in a brief window of time where underflow
could occur.

[How]
During prepare bandwidth allow rn_update_clocks_update_dpp_dto
to check each instance and compare previous clock to new clock.
If new clock is higher than previous clock, program DPPDTO.

Signed-off-by: Jake Wang <haonan.wang2@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: [FW Promotion] Release 0.0.47
Yongqiang Sun [Fri, 11 Dec 2020 20:34:30 +0000 (15:34 -0500)]
drm/amd/display: [FW Promotion] Release 0.0.47

- restore lvtma_pwrseq_delay2 from vbios integrated info table
- restore MVID/NVID after power up.
- Enable timer wake up mask when enable timer interrupt.

Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: updated wm table for Renoir
Jake Wang [Wed, 9 Dec 2020 23:00:18 +0000 (18:00 -0500)]
drm/amd/display: updated wm table for Renoir

[Why]
For certain timings, Renoir may underflow due to sr exit  latency
being too slow.

[How]
Updated wm table for renoir.

Signed-off-by: Jake Wang <haonan.wang2@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: Acquire DSC during split stream for ODM only if top_pipe
Sung Lee [Wed, 9 Dec 2020 19:58:59 +0000 (14:58 -0500)]
drm/amd/display: Acquire DSC during split stream for ODM only if top_pipe

[WHY]
DSC should only be acquired per OPP. Therefore, DSC should only
be acquired for the top_pipe when ODM is enabled.
Not doing this check may lead to acquiring more DSC's than needed
when doing MPO + ODM Combine.

[HOW]
Only acquire DSC if pipe is top_pipe.

Signed-off-by: Sung Lee <sung.lee@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: Multi-display underflow observed
Aric Cyr [Thu, 10 Dec 2020 17:11:32 +0000 (12:11 -0500)]
drm/amd/display: Multi-display underflow observed

[Why]
FP2 programming not happening when topology changes occur with multiple
displays.

[How]
Ensure FP2 is programmed whenever global sync changes occur but wait for
VACTIVE first to avoid underflow.

Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: Remove unnecessary NULL check
Eryk Brol [Tue, 8 Dec 2020 17:52:36 +0000 (12:52 -0500)]
drm/amd/display: Remove unnecessary NULL check

[Why]
new_crtc_state is already dereferenced earlier in the function

[How]
Remove the check

Signed-off-by: Eryk Brol <eryk.brol@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: Update RN/VGH active display count workaround
Michael Strauss [Mon, 30 Nov 2020 17:14:00 +0000 (12:14 -0500)]
drm/amd/display: Update RN/VGH active display count workaround

[WHY]
Virtual signals were previously counted as a workaround to S0i2 hang
which is fixed on Renoir. This blocks S0i3 diags testing.

[HOW]
Stop counting virtual signals as S0i2 hang is fixed on Renoir.

Signed-off-by: Michael Strauss <michael.strauss@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: change SMU repsonse timeout to 2s.
Yongqiang Sun [Wed, 9 Dec 2020 21:56:51 +0000 (16:56 -0500)]
drm/amd/display: change SMU repsonse timeout to 2s.

[Why]
there is some garbage showing up during reboot test.
Reason:
SMU might handle display driver msg defered and driver will send
next msg to SMU after 10ms timeout, once SMU FW handle previous msg,
parameters are changed to next one, which result in a wrong value be programmed.

[How]
Extend timeout to 2s so SMU will have enough time to handle driver msg.

Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: gradually ramp ABM intensity
Rizvi [Wed, 2 Dec 2020 21:52:22 +0000 (14:52 -0700)]
drm/amd/display: gradually ramp ABM intensity

[Why]
Need driver to pass values of backlight ramp start and ramp reduction so
that intensity can be ramped down appropriately.

[How]
Using abm_parameters structure to get these values from driver.

Signed-off-by: Rizvi <syerizvi@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: To modify the condition in indicating branch device
Martin Tsai [Wed, 2 Dec 2020 12:22:13 +0000 (20:22 +0800)]
drm/amd/display: To modify the condition in indicating branch device

[why]
The sink count change HPD_IRQ will be ignored if the branch device has only
DP DFP.

[how]
To remove the port type restriction.

Signed-off-by: Martin Tsai <martin.tsai@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: Modify the hdcp device count check condition
Martin Tsai [Thu, 3 Dec 2020 02:47:11 +0000 (10:47 +0800)]
drm/amd/display: Modify the hdcp device count check condition

[why]
Some MST display may not report the internal panel to DEVICE_COUNT,
that makes the check condition always failed.

[how]
To update this condition with the reported device count + 1
(because the immediate repeater's internal panel is possibly
not included in DEVICE_COUNT)

Signed-off-by: Martin Tsai <martin.tsai@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: Interfaces for hubp blank and soft reset
Wesley Chalmers [Mon, 7 Dec 2020 16:46:08 +0000 (11:46 -0500)]
drm/amd/display: Interfaces for hubp blank and soft reset

[WHY]
HUBP blanking sequence on DCN30 requires us to check if HUBP is in blank
and also toggle HUBP_DISABLE, which should instead be called
HUBP_SOFT_RESET for what it does in HW.

Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amd/display: handler not correctly checked at remove_irq_handler
Qingqing Zhuo [Fri, 4 Dec 2020 15:55:13 +0000 (10:55 -0500)]
drm/amd/display: handler not correctly checked at remove_irq_handler

[why]
handler is supposedly passed in as a function pointer;
however, the entire struct amdgpu_dm_irq_handler_data
gets from the list is used to check match.

[how]
use the interrupt_handler within amdgpu_dm_irq_handler_data
for checking match.

Signed-off-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: check gfx pipe availability before toggling its interrupts
Hawking Zhang [Sat, 21 Nov 2020 13:58:19 +0000 (21:58 +0800)]
drm/amdgpu: check gfx pipe availability before toggling its interrupts

GUI_IDLE interrupts controlled by CP_INT_CNTL_RING0
are only applicable to me0 pipe0.

For ASICs that have gfx pipe removed, don't toggle
those bits.

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: remove unnecessary asic type check
Hawking Zhang [Sat, 21 Nov 2020 13:07:12 +0000 (21:07 +0800)]
drm/amdgpu: remove unnecessary asic type check

The number of crtc should be 0 for ASICs that don't
have display engine. Remove the unnecessary asic type
check then.

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
3 years agodrm/amdgpu: check number of gfx ring before init cp gfx
Hawking Zhang [Sat, 21 Nov 2020 13:01:47 +0000 (21:01 +0800)]
drm/amdgpu: check number of gfx ring before init cp gfx

Check number of gfx ring, rather than asic type,
before cp gfx engine initialization so driver just
need to make sure number of gfx ring is initialized
correctly in gfx early_init phase. No need to add
additional asic type check everywhere when there is
new asic with gfx pipe removed.

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>