Commit graph

1,105,074 commits

Author SHA1 Message Date
Kan Liang
f758bc5a91 perf/x86/uncore: Add new Alder Lake and Raptor Lake support
From the perspective of the uncore PMU, there is nothing changed for the
new Alder Lake N and Raptor Lake P.

Add new PCIIDs of IMC.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220504194413.1003071-5-kan.liang@linux.intel.com
2022-05-11 16:27:09 +02:00
Kan Liang
e5ae168e83 perf/x86/uncore: Clean up uncore_pci_ids[]
The initialization code to assign PCI IDs for different platforms is
similar. Add the new macros to reduce the redundant code.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220504194413.1003071-4-kan.liang@linux.intel.com
2022-05-11 16:27:08 +02:00
Kan Liang
cd971104ac perf/x86/cstate: Add new Alder Lake and Raptor Lake support
From the perspective of Intel cstate residency counters, there is nothing
changed for the new Alder Lake N and Raptor Lake P.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220504194413.1003071-3-kan.liang@linux.intel.com
2022-05-11 16:27:08 +02:00
Kan Liang
d773a73366 perf/x86/msr: Add new Alder Lake and Raptor Lake support
The new Alder Lake N and Raptor Lake P also support PPERF and SMI_COUNT
MSRs.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220504194413.1003071-2-kan.liang@linux.intel.com
2022-05-11 16:27:08 +02:00
Kan Liang
c2a960f7c5 perf/x86: Add new Alder Lake and Raptor Lake support
From PMU's perspective, there is no difference for the new Alder Lake N
and Raptor Lake P.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220504194413.1003071-1-kan.liang@linux.intel.com
2022-05-11 16:27:08 +02:00
Peter Zijlstra
47319846a9 Linux 5.18-rc5
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Merge branch 'v5.18-rc5'

Obtain the new INTEL_FAM6 stuff required.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
2022-05-11 16:27:06 +02:00
Waiman Long
434e09e757 locking/qrwlock: Change "queue rwlock" to "queued rwlock"
Queued rwlock was originally named "queue rwlock" which wasn't quite
grammatically correct. However there are still some "queue rwlock"
references in the code. Change those to "queued rwlock" for consistency.

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220510192134.434753-1-longman@redhat.com
2022-05-11 16:27:04 +02:00
Thomas Gleixner
deaf7c4b4b lockdep: Delete local_irq_enable_in_hardirq()
No more users and there is no desire to grow new ones.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/8735hir0j4.ffs@tglx
2022-05-11 16:27:04 +02:00
AngeloGioacchino Del Regno
1d565935e3 PCI: mediatek-gen3: Assert resets to ensure expected init state
The controller may have been left out of reset by the bootloader,
in which case, before the powerup sequence, the controller will be
found preconfigured with values that were set before booting the
kernel: this produces a controller failure, with the result of
a failure during the mtk_pcie_startup_port() sequence as the PCIe
link never gets up.

To ensure that we get a clean start in an expected state, assert
both the PHY and MAC resets before executing the controller
power-up sequence.

Link: https://lore.kernel.org/r/20220404144858.92390-1-angelogioacchino.delregno@collabora.com
Fixes: d3bf75b579 ("PCI: mediatek-gen3: Add MediaTek Gen3 driver for MT8192")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2022-05-11 15:25:26 +01:00
Andy Shevchenko
f68cd356d0 pinctrl: broxton: Add module alias for Intel Apollo Lake
We have platform device IDs for Broxton and Apollo Lake, but
module alias is provided only for the former. Make it consistent
by providing an alias for Apollo Lake.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2022-05-11 17:19:18 +03:00
Anuj Gupta
f569add471 nvme: add vectored-io support for uring-cmd
wire up support for async passthru that takes an array of buffers (using
iovec). Exposed via a new op NVME_URING_CMD_IO_VEC. Same 'struct
nvme_uring_cmd' is to be used with -

1. cmd.addr as base address of user iovec array
2. cmd.data_len as count of iovec array elements

Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220511054750.20432-6-joshi.k@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-05-11 07:41:19 -06:00
Kanchan Joshi
456cba386e nvme: wire-up uring-cmd support for io-passthru on char-device.
Introduce handler for fops->uring_cmd(), implementing async passthru
on char device (/dev/ngX). The handler supports newly introduced
operation NVME_URING_CMD_IO. This operates on a new structure
nvme_uring_cmd, which is similar to struct nvme_passthru_cmd64 but
without the embedded 8b result field. This field is not needed since
uring-cmd allows to return additional result via big-CQE.

Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220511054750.20432-5-joshi.k@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-05-11 07:41:13 -06:00
Christoph Hellwig
bcad2565b5 nvme: refactor nvme_submit_user_cmd()
Divide the work into two helpers, namely nvme_alloc_user_request and
nvme_execute_user_rq. This is a prep patch, to help wiring up
uring-cmd support in nvme.

Signed-off-by: Christoph Hellwig <hch@lst.de>
[axboe: fold in fix for assuming bio is non-NULL]
Link: https://lore.kernel.org/r/20220511054750.20432-4-joshi.k@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-05-11 07:41:05 -06:00
Jens Axboe
1c2d2fff6d block: wire-up support for passthrough plugging
Add support for plugging in passthrough path. When plugging is enabled, the
requests are added to a plug instead of getting dispatched to the driver.
And when the plug is finished, the whole batch gets dispatched via
->queue_rqs which turns out to be more efficient. Otherwise dispatching
used to happen via ->queue_rq, one request at a time.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220511054750.20432-3-joshi.k@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-05-11 07:40:58 -06:00
Jens Axboe
ee692a21e9 fs,io_uring: add infrastructure for uring-cmd
file_operations->uring_cmd is a file private handler.
This is somewhat similar to ioctl but hopefully a lot more sane and
useful as it can be used to enable many io_uring capabilities for the
underlying operation.

IORING_OP_URING_CMD is a file private kind of request. io_uring doesn't
know what is in this command type, it's for the provider of ->uring_cmd()
to deal with.

Co-developed-by: Kanchan Joshi <joshi.k@samsung.com>
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220511054750.20432-2-joshi.k@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-05-11 07:40:47 -06:00
Laurent Dufour
b6b1c3ce06 powerpc/rtas: Keep MSR[RI] set when calling RTAS
RTAS runs in real mode (MSR[DR] and MSR[IR] unset) and in 32-bit big
endian mode (MSR[SF,LE] unset).

The change in MSR is done in enter_rtas() in a relatively complex way,
since the MSR value could be hardcoded.

Furthermore, a panic has been reported when hitting the watchdog interrupt
while running in RTAS, this leads to the following stack trace:

  watchdog: CPU 24 Hard LOCKUP
  watchdog: CPU 24 TB:997512652051031, last heartbeat TB:997504470175378 (15980ms ago)
  ...
  Supported: No, Unreleased kernel
  CPU: 24 PID: 87504 Comm: drmgr Kdump: loaded Tainted: G            E  X    5.14.21-150400.71.1.bz196362_2-default #1 SLE15-SP4 (unreleased) 0d821077ef4faa8dfaf370efb5fdca1fa35f4e2c
  NIP:  000000001fb41050 LR: 000000001fb4104c CTR: 0000000000000000
  REGS: c00000000fc33d60 TRAP: 0100   Tainted: G            E  X     (5.14.21-150400.71.1.bz196362_2-default)
  MSR:  8000000002981000 <SF,VEC,VSX,ME>  CR: 48800002  XER: 20040020
  CFAR: 000000000000011c IRQMASK: 1
  GPR00: 0000000000000003 ffffffffffffffff 0000000000000001 00000000000050dc
  GPR04: 000000001ffb6100 0000000000000020 0000000000000001 000000001fb09010
  GPR08: 0000000020000000 0000000000000000 0000000000000000 0000000000000000
  GPR12: 80040000072a40a8 c00000000ff8b680 0000000000000007 0000000000000034
  GPR16: 000000001fbf6e94 000000001fbf6d84 000000001fbd1db0 000000001fb3f008
  GPR20: 000000001fb41018 ffffffffffffffff 000000000000017f fffffffffffff68f
  GPR24: 000000001fb18fe8 000000001fb3e000 000000001fb1adc0 000000001fb1cf40
  GPR28: 000000001fb26000 000000001fb460f0 000000001fb17f18 000000001fb17000
  NIP [000000001fb41050] 0x1fb41050
  LR [000000001fb4104c] 0x1fb4104c
  Call Trace:
  Instruction dump:
  XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
  XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
  Oops: Unrecoverable System Reset, sig: 6 [#1]
  LE PAGE_SIZE=64K MMU=Hash SMP NR_CPUS=2048 NUMA pSeries
  ...
  Supported: No, Unreleased kernel
  CPU: 24 PID: 87504 Comm: drmgr Kdump: loaded Tainted: G            E  X    5.14.21-150400.71.1.bz196362_2-default #1 SLE15-SP4 (unreleased) 0d821077ef4faa8dfaf370efb5fdca1fa35f4e2c
  NIP:  000000001fb41050 LR: 000000001fb4104c CTR: 0000000000000000
  REGS: c00000000fc33d60 TRAP: 0100   Tainted: G            E  X     (5.14.21-150400.71.1.bz196362_2-default)
  MSR:  8000000002981000 <SF,VEC,VSX,ME>  CR: 48800002  XER: 20040020
  CFAR: 000000000000011c IRQMASK: 1
  GPR00: 0000000000000003 ffffffffffffffff 0000000000000001 00000000000050dc
  GPR04: 000000001ffb6100 0000000000000020 0000000000000001 000000001fb09010
  GPR08: 0000000020000000 0000000000000000 0000000000000000 0000000000000000
  GPR12: 80040000072a40a8 c00000000ff8b680 0000000000000007 0000000000000034
  GPR16: 000000001fbf6e94 000000001fbf6d84 000000001fbd1db0 000000001fb3f008
  GPR20: 000000001fb41018 ffffffffffffffff 000000000000017f fffffffffffff68f
  GPR24: 000000001fb18fe8 000000001fb3e000 000000001fb1adc0 000000001fb1cf40
  GPR28: 000000001fb26000 000000001fb460f0 000000001fb17f18 000000001fb17000
  NIP [000000001fb41050] 0x1fb41050
  LR [000000001fb4104c] 0x1fb4104c
  Call Trace:
  Instruction dump:
  XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
  XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
  ---[ end trace 3ddec07f638c34a2 ]---

This happens because MSR[RI] is unset when entering RTAS but there is no
valid reason to not set it here.

RTAS is expected to be called with MSR[RI] as specified in PAPR+ section
"7.2.1 Machine State":

  R1–7.2.1–9. If called with MSR[RI] equal to 1, then RTAS must protect
  its own critical regions from recursion by setting the MSR[RI] bit to
  0 when in the critical regions.

Fixing this by reviewing the way MSR is compute before calling RTAS. Now a
hardcoded value meaning real mode, 32 bits big endian mode and Recoverable
Interrupt is loaded. In the case MSR[S] is set, it will remain set while
entering RTAS as only urfid can unset it (thanks Fabiano).

In addition a check is added in do_enter_rtas() to detect calls made with
MSR[RI] unset, as we are forcing it on later.

This patch has been tested on the following machines:
Power KVM Guest
  P8 S822L (host Ubuntu kernel 5.11.0-49-generic)
PowerVM LPAR
  P8 9119-MME (FW860.A1)
  p9 9008-22L (FW950.00)
  P10 9080-HEX (FW1010.00)

Suggested-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220504101244.12107-1-ldufour@linux.ibm.com
2022-05-11 23:06:40 +10:00
Christophe Leroy
5ad1aa007d powerpc/8xx: Use kmalloced data structure instead of global static
Use a kmalloced data structure to store interrupt controller internal
data instead of static global variables.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/c8f0866ee013113d5e28948943cf0586e49f5353.1649226186.git.christophe.leroy@csgroup.eu
2022-05-11 23:06:40 +10:00
Christophe Leroy
e3ba31b780 powerpc/8xx: Remove mpc8xx_pics_init()
mpc8xx_pics_init() is now only a trampoline to
mpc8xx_pic_init().

Remove mpc8xx_pics_init() and use mpc8xx_pic_init()
directly.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/9c55a698adb5ba3b7b77023170fcaf0acb5d2d81.1649226186.git.christophe.leroy@csgroup.eu
2022-05-11 23:06:40 +10:00
Christophe Leroy
14d893fc68 powerpc/8xx: Convert CPM1 interrupt controller to platform_device
In the same logic as commit be7ecbd240 ("soc: fsl: qe: convert QE
interrupt controller to platform_device"), convert CPM1 interrupt
controller to platform_device.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/fb80d0b2077312079c49da0296e25591578771cd.1649226186.git.christophe.leroy@csgroup.eu
2022-05-11 23:06:40 +10:00
Christophe Leroy
22add2a20e powerpc/8xx: Convert CPM1 error interrupt handler to platform driver
Add CPM error interrupt as a standalone platform driver,
to simplify the init of CPM interrupt handler.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/375a72df6e4a26c5959cc81a6c6d46152efa2306.1649226186.git.christophe.leroy@csgroup.eu
2022-05-11 23:06:40 +10:00
Christophe Leroy
acf9e575d8 powerpc/8xx: Move CPM interrupt controller into a dedicated file
CPM interrupt controller is quite standalone. Move it into a
dedicated file. It will help for next step which will change
it to a platform driver.

This is pure code move, checkpatch report is ignored at this point,
except one parenthesis alignment which would remain at the end of
the series. All other points fly away with following patches.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/d3a7dc832d905bed14b35d83410cdb69a7ba20e8.1649226186.git.christophe.leroy@csgroup.eu
2022-05-11 23:06:39 +10:00
Christophe Leroy
d8d2af70b9 cxl/ocxl: Prepare cleanup of powerpc's asm/prom.h
powerpc's asm/prom.h brings some headers that it doesn't
need itself.

In order to clean it up, first add missing headers in
users of asm/prom.h

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Frederic Barrat <fbarrat@linux.ibm.com>
Acked-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/a2bae89b280e7a7cb87889635d9911d6a245e780.1648833388.git.christophe.leroy@csgroup.eu
2022-05-11 23:06:39 +10:00
Christophe Leroy
a486e512d1 macintosh: Prepare cleanup of powerpc's asm/prom.h
powerpc's asm/prom.h brings some headers that it doesn't
need itself.

In order to clean it up, first add missing headers in
users of asm/prom.h

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/04961364547fe4556e30cb302b0e20a939b83426.1648833027.git.christophe.leroy@csgroup.eu
2022-05-11 23:06:39 +10:00
Christophe Leroy
1751289268 powerpc/code-patching: Use jump_label to check if poking_init() is done
It's only during early startup that poking_init() is not done yet,
for instance when calling ftrace_init().

Once poking_init() has been called there must be a poking area, no
need to check it everytime patch_instruction() is called.

ftrace activation time is reduced by 7% with the change on an 8xx.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/8d6088aca7b63247377b6d9e4897d08d935fbe93.1647962456.git.christophe.leroy@csgroup.eu
2022-05-11 23:06:39 +10:00
Christophe Leroy
b033767848 powerpc/code-patching: Use jump_label for testing freed initmem
Once init is done, initmem is freed forever so no need to
test system_state at every call to patch_instruction().

Use jump_label.

This reduces by 2% the time needed to activate ftrace on an 8xx.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/0aee964721cab7316cffde21a2ca223cee14d373.1647962456.git.christophe.leroy@csgroup.eu
2022-05-11 23:06:39 +10:00
Alexander Graf
ee8348496c KVM: PPC: Book3S PR: Enable MSR_DR for switch_mmu_context()
Commit 863771a28e ("powerpc/32s: Convert switch_mmu_context() to C")
moved the switch_mmu_context() to C. While in principle a good idea, it
meant that the function now uses the stack. The stack is not accessible
from real mode though.

So to keep calling the function, let's turn on MSR_DR while we call it.
That way, all pointer references to the stack are handled virtually.

In addition, make sure to save/restore r12 on the stack, as it may get
clobbered by the C function.

Fixes: 863771a28e ("powerpc/32s: Convert switch_mmu_context() to C")
Cc: stable@vger.kernel.org # v5.14+
Reported-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Alexander Graf <graf@amazon.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220510123717.24508-1-graf@amazon.com
2022-05-11 23:03:16 +10:00
Conor Dooley
30097efa33 PCI: microchip: Add missing chained_irq_enter()/exit() calls
Two of the chained IRQ handlers miss their
chained_irq_enter()/chained_irq_exit() calls, so add them in to avoid
potentially lost interrupts.

Reported by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/linux-pci/87h76b8nxc.wl-maz@kernel.org
Link: https://lore.kernel.org/r/20220511095504.2273799-1-conor.dooley@microchip.com
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
2022-05-11 14:02:42 +01:00
Anshuman Khandual
fb396bb459 arm64/hugetlb: Drop TLB flush from get_clear_flush()
This drops now redundant TLB flush in get_clear_flush() which is no longer
required after recent commit 697a1d44af ("tlb: hugetlb: Add more sizes to
tlb_remove_huge_tlb_entry"). It also renames this function i.e dropping off
'_flush' and replacing it with '__contig' as appropriate.

Cc: Will Deacon <will@kernel.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20220510043930.2410985-1-anshuman.khandual@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-05-11 13:53:19 +01:00
Francesco Dolcini
a6809941c1 PCI: imx6: Fix PERST# start-up sequence
According to the PCIe standard the PERST# signal (reset-gpio in
fsl,imx* compatible dts) should be kept asserted for at least 100 usec
before the PCIe refclock is stable, should be kept asserted for at
least 100 msec after the power rails are stable and the host should wait
at least 100 msec after it is de-asserted before accessing the
configuration space of any attached device.

From PCIe CEM r2.0, sec 2.6.2

  T-PVPERL: Power stable to PERST# inactive - 100 msec
  T-PERST-CLK: REFCLK stable before PERST# inactive - 100 usec.

From PCIe r5.0, sec 6.6.1

  With a Downstream Port that does not support Link speeds greater than
  5.0 GT/s, software must wait a minimum of 100 ms before sending a
  Configuration Request to the device immediately below that Port.

Failure to do so could prevent PCIe devices to be working correctly,
and this was experienced with real devices.

Move reset assert to imx6_pcie_assert_core_reset(), this way we ensure
that PERST# is asserted before enabling any clock, move de-assert to the
end of imx6_pcie_deassert_core_reset() after the clock is enabled and
deemed stable and add a new delay of 100 msec just afterward.

Link: https://lore.kernel.org/all/20220211152550.286821-1-francesco.dolcini@toradex.com
Link: https://lore.kernel.org/r/20220404081509.94356-1-francesco.dolcini@toradex.com
Fixes: bb38919ec5 ("PCI: imx6: Add support for i.MX6 PCIe controller")
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Richard Zhu <hongxing.zhu@nxp.com>
2022-05-11 13:50:45 +01:00
Masahiro Yamada
2a66c3124a modpost: change the license of EXPORT_SYMBOL to bool type
There were more EXPORT_SYMBOL types in the past. The following commits
removed unused ones.

 - f1c3d73e97 ("module: remove EXPORT_SYMBOL_GPL_FUTURE")
 - 367948220f ("module: remove EXPORT_UNUSED_SYMBOL*")

There are 3 remaining in enum export, but export_unknown does not make
any sense because we never expect such a situation like "we do not know
how it was exported".

If the symbol name starts with "__ksymtab_", but the section name
does not start with "___ksymtab+" or "___ksymtab_gpl+", it is not an
exported symbol.

It occurs when a variable starting with "__ksymtab_" is directly defined:

   int __ksymtab_foo;

Presumably, there is no practical issue for using such a weird variable
name (but there is no good reason for doing so, either).

Anyway, that is not an exported symbol. Setting export_unknown is not
the right thing to do. Do not call sym_add_exported() in this case.

With pointless export_unknown removed, the export type finally becomes
boolean (either EXPORT_SYMBOL or EXPORT_SYMBOL_GPL).

I renamed the field name to is_gpl_only. EXPORT_SYMBOL_GPL sets it true.
Only GPL-compatible modules can use it.

I removed the orphan comment, "How a symbol is exported", which is
unrelated to sec_mismatch_count. It is about enum export.
See commit bd5cbcedf4 ("kbuild: export-type enhancement to modpost.c")

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Tested-by: Nathan Chancellor <nathan@kernel.org>
2022-05-11 21:46:39 +09:00
Masahiro Yamada
ce79c406a2 modpost: remove left-over cross_compile declaration
This is a remnant of commit 6543becf26 ("mod/file2alias: make
modalias generation safe for cross compiling").

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
2022-05-11 21:46:39 +09:00
Masahiro Yamada
78e9e56af3 kbuild: record symbol versions in *.cmd files
When CONFIG_MODVERSIONS=y, the output from genksyms is saved in
separate *.symversions files, and will be used much later when
CONFIG_LTO_CLANG=y because it is impossible to update LLVM bit code
here.

This approach is not robust because:

 - *.symversions may or may not exist. If *.symversions does not
   exist, we never know if it is missing for legitimate reason
   (i.e. no EXPORT_SYMBOL) or something bad has happened (for
   example, the user accidentally deleted it). Once it occurs,
   it is not self-healing because *.symversions is generated
   as a side effect.

 - stale (i.e. invalid) *.symversions might be picked up if an
   object is generated in a non-ordinary way, and corresponding
   *.symversions (, which was generated by old builds) just happen
   to exist.

A more robust approach is to save symbol versions in *.cmd files
because:

 - *.cmd always exists (if the object is generated by if_changed
   rule or friends). Even if the user accidentally deletes it,
   it will be regenerated in the next build.

 - *.cmd is always re-generated when the object is updated. This
   avoid stale version information being picked up.

I will remove *.symversions later.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Nicolas Schier <nicolas@fjasle.eu>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Tested-by: Nathan Chancellor <nathan@kernel.org>
2022-05-11 21:46:39 +09:00
Masahiro Yamada
e493f47275 kbuild: generate a list of objects in vmlinux
A *.mod file lists the member objects of a module, but vmlinux does
not have such a file.

Generate this list to allow modpost to know all the member objects.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Tested-by: Nathan Chancellor <nathan@kernel.org>
2022-05-11 21:46:39 +09:00
Masahiro Yamada
a44abaca0e modpost: move *.mod.c generation to write_mod_c_files()
A later commit will add more code to this list_for_each_entry loop.

Before that, move the loop body into a separate helper function.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Tested-by: Nathan Chancellor <nathan@kernel.org>
2022-05-11 21:46:38 +09:00
Masahiro Yamada
7fedac9698 modpost: merge add_{intree_flag,retpoline,staging_flag} to add_header
add_intree_flag(), add_retpoline(), and add_staging_flag() are small
enough to be merged into add_header().

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Tested-by: Nathan Chancellor <nathan@kernel.org>
2022-05-11 21:46:38 +09:00
Reza Arbab
5d53508d1b scripts/prune-kernel: Use kernel-install if available
If the new-kernel-pkg utility isn't present, try using kernel-install.
This is what the %preun scriptlet in scripts/package/mkspec does too.

Signed-off-by: Reza Arbab <arbab@linux.ibm.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2022-05-11 21:46:38 +09:00
Masahiro Yamada
f774f5bb87 kbuild: factor out the common installation code into scripts/install.sh
Many architectures have similar install.sh scripts.

The first half is really generic; it verifies that the kernel image
and System.map exist, then executes ~/bin/${INSTALLKERNEL} or
/sbin/${INSTALLKERNEL} if available.

The second half is kind of arch-specific; it copies the kernel image
and System.map to the destination, but the code is slightly different.

Factor out the generic part into scripts/install.sh.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <n.schier@avm.de>
2022-05-11 21:45:53 +09:00
Heiko Carstens
63678eecec s390/preempt: disable __preempt_count_add() optimization for PROFILE_ALL_BRANCHES
gcc 12 does not (always) optimize away code that should only be generated
if parameters are constant and within in a certain range. This depends on
various obscure kernel config options, however in particular
PROFILE_ALL_BRANCHES can trigger this compile error:

In function ‘__atomic_add_const’,
    inlined from ‘__preempt_count_add.part.0’ at ./arch/s390/include/asm/preempt.h:50:3:
./arch/s390/include/asm/atomic_ops.h:80:9: error: impossible constraint in ‘asm’
   80 |         asm volatile(                                                   \
      |         ^~~

Workaround this by simply disabling the optimization for
PROFILE_ALL_BRANCHES, since the kernel will be so slow, that this
optimization won't matter at all.

Reported-by: Thomas Richter <tmricht@linux.ibm.com>
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2022-05-11 14:40:58 +02:00
Sven Schnelle
5ace65ebb5 s390/stp: clock_delta should be signed
clock_delta is declared as unsigned long in various places. However,
the clock sync delta can be negative. This would add a huge positive
offset in clock_sync_global where clock_delta is added to clk.eitod
which is a 72 bit integer. Declare it as signed long to fix this.

Cc: stable@vger.kernel.org
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2022-05-11 14:40:57 +02:00
Sven Schnelle
03780c83c7 s390/stp: fix todoff size
The size of the TOD offset field in the stp info response is 64 bits.

Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@de.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2022-05-11 14:40:57 +02:00
Linu Cherian
710c8d6c02 arm64: Declare non global symbols as static
Fix below sparse warnings introduced while adding errata.

arch/arm64/kernel/cpu_errata.c:218:25: sparse: warning: symbol
'cavium_erratum_23154_cpus' was not declared. Should it be static?

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Linu Cherian <lcherian@marvell.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20220509043221.16361-1-lcherian@marvell.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-05-11 13:40:26 +01:00
Bryan Cain
fa33382c7f HID: apple: Properly handle function keys on Keychron keyboards
Keychron's C-series and K-series of keyboards copy the vendor and
product IDs of an Apple keyboard, but only behave like that device when
set to "Mac" mode. In "Windows" mode, the Fn key doesn't generate a
scancode, so it's impossible to use the F1-F12 keys when fnmode is set
to its default value of 1.

To fix this, make fnmode default to the new value of 3, which behaves
like fnmode=2 for Keychron keyboards and like fnmode=1 for actual Apple
keyboards. This way, Keychron devices are fully usable in both "Windows"
and "Mac" modes, while behavior is unchanged for everything else.

Signed-off-by: Bryan Cain <bryancain3@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-05-11 14:21:56 +02:00
Nikolai Kondrashov
f7d8e387d9 HID: uclogic: Switch to Digitizer usage for styluses
The (incorrect) "Pen" (0x02) application usage used in replacement
report descriptors throughout the drivers leads to all tablets
recognized as a "direct" input device (i.e. a tablet monitor) by
recent kernels, which messes up desktop environments [1].

Replace the application usage with "Digitizer" (0x01) for each
non-display graphics tablet.

[1] https://lore.kernel.org/linux-input/f39ce5d5-bd5b-bd3f-3ea2-9b2a89ba1eb1@gmail.com/

Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-05-11 14:19:27 +02:00
Roman Romanenko
61b1db5a14 HID: uclogic: Add pen support for XP-PEN Star 06
Similar to other UGEE pens, but the IDs were missing.

Signed-off-by: Roman Romanenko <romu4444@gmail.com>
Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-05-11 14:19:27 +02:00
Nikolai Kondrashov
118dfdeaa3 HID: uclogic: Differentiate touch ring and touch strip
Improve support for touch strips.

Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-05-11 14:19:27 +02:00
Nikolai Kondrashov
fbc08b4e8e HID: uclogic: Always shift touch reports to zero
Always decrement touch report values to have the range start with zero,
regardless if flipped or not. This fixes the future non-flipped touch
strip reports.

Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-05-11 14:19:27 +02:00
Nikolai Kondrashov
caf7e93479 HID: uclogic: Do not focus on touch ring only
Accommodate both touch ring and touch strip in naming throughout
hid-uclogic by talking about abstract "touch" instead of "touch ring",
wherever possible.

Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-05-11 14:19:27 +02:00
Nikolai Kondrashov
945d5dd5a5 HID: uclogic: Return raw parameters from v2 pen init
Return the raw parameters buffer from uclogic_params_pen_init_v2(), if
requested, as a way to identify the tablet.

Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-05-11 14:19:27 +02:00
Nikolai Kondrashov
a228809fa6 HID: uclogic: Move param printing to a function
Move parameter printing from a format string/argument list to a function
to allow printing the full parameters, which now wouldn't fit into a
single print call.

Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-05-11 14:19:27 +02:00
Basavaraj Natikar
806fc359a3 HID: core: Display "SENSOR HUB" for sensor hub bus string in hid_info
Currently sensor hub shows "<UNKNOWN>", but this is a pretty common
type available in many notebooks. Hence using the string "SENSOR HUB".

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2022-05-11 14:16:26 +02:00