Commit graph

21803 commits

Author SHA1 Message Date
Linus Torvalds
a63f2e7cb1 arm64 fixes for -rc7
- Fix false positive "sleeping while atomic" warning resulting from
   the kPTI rework taking a mutex too early.
 
 - Fix possible overflow in AMU frequency calculation
 
 - Fix incorrect shift in CMN PMU driver which causes problems with
   newer versions of the IP
 
 - Reduce alignment of the CFI jump table to avoid huge kernel images
   and link errors with !4KiB page size configurations
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "These are all very simple and self-contained, although the CFI
  jump-table fix touches the generic linker script as that's where the
  problematic macro lives.

   - Fix false positive "sleeping while atomic" warning resulting from
     the kPTI rework taking a mutex too early.

   - Fix possible overflow in AMU frequency calculation

   - Fix incorrect shift in CMN PMU driver which causes problems with
     newer versions of the IP

   - Reduce alignment of the CFI jump table to avoid huge kernel images
     and link errors with !4KiB page size configurations"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  vmlinux.lds.h: CFI: Reduce alignment of jump-table to function alignment
  perf/arm-cmn: Add more bits to child node address offset field
  arm64: topology: fix possible overflow in amu_fie_setup()
  arm64: mm: don't acquire mutex when rewriting swapper
2022-09-23 15:28:51 -07:00
Linus Torvalds
317fab7ec5 ARM:
* Fix for kmemleak with pKVM
 
 s390:
 
 * Fixes for VFIO with zPCI
 
 * smatch fix
 
 x86:
 
 * Ensure XSAVE-capable hosts always allow  FP and SSE state to be saved
   and restored via KVM_{GET,SET}_XSAVE
 
 * Fix broken max_mmu_rmap_size stat
 
 * Fix compile error with old glibc that doesn't have gettid()
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "As everyone back came back from conferences, here are the pending
  patches for Linux 6.0.

  ARM:

   - Fix for kmemleak with pKVM

  s390:

   - Fixes for VFIO with zPCI

   - smatch fix

  x86:

   - Ensure XSAVE-capable hosts always allow FP and SSE state to be
     saved and restored via KVM_{GET,SET}_XSAVE

   - Fix broken max_mmu_rmap_size stat

   - Fix compile error with old glibc that doesn't have gettid()"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Inject #UD on emulated XSETBV if XSAVES isn't enabled
  KVM: x86: Always enable legacy FP/SSE in allowed user XFEATURES
  KVM: x86: Reinstate kvm_vcpu_arch.guest_supported_xcr0
  KVM: x86/mmu: add missing update to max_mmu_rmap_size
  selftests: kvm: Fix a compile error in selftests/kvm/rseq_test.c
  KVM: s390: pci: register pci hooks without interpretation
  KVM: s390: pci: fix GAIT physical vs virtual pointers usage
  KVM: s390: Pass initialized arg even if unused
  KVM: s390: pci: fix plain integer as NULL pointer warnings
  KVM: arm64: Use kmemleak_free_part_phys() to unregister hyp_mem_base
2022-09-23 08:42:30 -07:00
Paolo Bonzini
69604fe76e More pci fixes
Fix for a code analyser warning
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Merge tag 'kvm-s390-master-6.0-2' of https://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD

More pci fixes
Fix for a code analyser warning
2022-09-23 10:06:08 -04:00
Paolo Bonzini
b4ac28a32f KVM/arm64 fixes for 6.0, take #2
- Fix kmemleak usage in Protected KVM (again)
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Merge tag 'kvmarm-fixes-6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 6.0, take #2

- Fix kmemleak usage in Protected KVM (again)
2022-09-22 17:01:33 -04:00
Linus Torvalds
c69cf88cda ARM: SoC fixes for 6.0-rc6
Another set of fixes for fixes for the soc tree:
 
  - A fix for the interrupt number on at91/lan966 ethernet PHYs
 
  - A second round of fixes for NXP i.MX series, including a couple
    of build issues, and board specific DT corrections on
    TQMa8MPQL, imx8mp-venice-gw74xx and imx8mm-verdin for reliability
    and partially broken functionality.
 
  - Several fixes for Rockchip SoCs, addressing a USB issue on BPI-R2-Pro,
    wakeup on Gru-Bob and reliability of high-speed SD cards, among
    other minor issues.
 
  - A fix for a long-running naming mistake that prevented the moxart mmc
    driver from working at all.
 
  - Multiple Arm SCMI firmware fixes for hardening some corner cases.
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Merge tag 'soc-fixes-6.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Another set of fixes for fixes for the soc tree:

   - A fix for the interrupt number on at91/lan966 ethernet PHYs

   - A second round of fixes for NXP i.MX series, including a couple of
     build issues, and board specific DT corrections on TQMa8MPQL,
     imx8mp-venice-gw74xx and imx8mm-verdin for reliability and
     partially broken functionality

   - Several fixes for Rockchip SoCs, addressing a USB issue on
     BPI-R2-Pro, wakeup on Gru-Bob and reliability of high-speed SD
     cards, among other minor issues

   - A fix for a long-running naming mistake that prevented the moxart
     mmc driver from working at all

   - Multiple Arm SCMI firmware fixes for hardening some corner cases"

* tag 'soc-fixes-6.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (30 commits)
  arm64: dts: imx8mp-venice-gw74xx: fix port/phy validation
  ARM: dts: lan966x: Fix the interrupt number for internal PHYs
  arm64: dts: imx8mp-venice-gw74xx: fix ksz9477 cpu port
  arm64: dts: imx8mp-venice-gw74xx: fix CAN STBY polarity
  dt-bindings: memory-controllers: fsl,imx8m-ddrc: drop Leonard Crestez
  arm64: dts: tqma8mqml: Include phy-imx8-pcie.h header
  arm64: defconfig: enable ARCH_NXP
  arm64: dts: imx8mp-tqma8mpql-mba8mpxl: add missing pinctrl for RTC alarm
  ARM: dts: fix Moxa SDIO 'compatible', remove 'sdhci' misnomer
  arm64: dts: imx8mm-verdin: extend pmic voltages
  arm64: dts: rockchip: Remove 'enable-active-low' from rk3566-quartz64-a
  arm64: dts: rockchip: Remove 'enable-active-low' from rk3399-puma
  arm64: dts: rockchip: fix property for usb2 phy supply on rk3568-evb1-v10
  arm64: dts: rockchip: fix property for usb2 phy supply on rock-3a
  arm64: dts: imx8ulp: add #reset-cells for pcc
  arm64: dts: tqma8mpxl-ba8mpxl: Fix button GPIOs
  arm64: dts: imx8mn: remove GPU power domain reset
  arm64: dts: rockchip: Set RK3399-Gru PCLK_EDP to 24 MHz
  arm64: dts: imx8mm: Reverse CPLD_Dn GPIO label mapping on MX8Menlo
  arm64: dts: rockchip: fix upper usb port on BPI-R2-Pro
  ...
2022-09-22 11:10:11 -07:00
Sergey Shtylyov
d4955c0ad7 arm64: topology: fix possible overflow in amu_fie_setup()
cpufreq_get_hw_max_freq() returns max frequency in kHz as *unsigned int*,
while freq_inv_set_max_ratio() gets passed this frequency in Hz as 'u64'.
Multiplying max frequency by 1000 can potentially result in overflow --
multiplying by 1000ULL instead should avoid that...

Found by Linux Verification Center (linuxtesting.org) with the SVACE static
analysis tool.

Fixes: cd0ed03a89 ("arm64: use activity monitors for frequency invariance")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/01493d64-2bce-d968-86dc-11a122a9c07d@omp.ru
Signed-off-by: Will Deacon <will@kernel.org>
2022-09-22 12:57:06 +01:00
Mark Rutland
61d2d1808b arm64: mm: don't acquire mutex when rewriting swapper
Since commit:

  47546a1912 ("arm64: mm: install KPTI nG mappings with MMU enabled)"

... when building with CONFIG_DEBUG_ATOMIC_SLEEP=y and booting under
QEMU TCG with '-cpu max', there's a boot-time splat:

| BUG: sleeping function called from invalid context at kernel/locking/mutex.c:580
| in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 15, name: migration/0
| preempt_count: 1, expected: 0
| RCU nest depth: 0, expected: 0
| no locks held by migration/0/15.
| irq event stamp: 28
| hardirqs last  enabled at (27): [<ffff8000091ed180>] _raw_spin_unlock_irq+0x3c/0x7c
| hardirqs last disabled at (28): [<ffff8000081b8d74>] multi_cpu_stop+0x150/0x18c
| softirqs last  enabled at (0): [<ffff80000809a314>] copy_process+0x594/0x1964
| softirqs last disabled at (0): [<0000000000000000>] 0x0
| CPU: 0 PID: 15 Comm: migration/0 Not tainted 6.0.0-rc3-00002-g419b42ff7eef #3
| Hardware name: linux,dummy-virt (DT)
| Stopper: multi_cpu_stop+0x0/0x18c <- stop_cpus.constprop.0+0xa0/0xfc
| Call trace:
|  dump_backtrace.part.0+0xd0/0xe0
|  show_stack+0x1c/0x5c
|  dump_stack_lvl+0x88/0xb4
|  dump_stack+0x1c/0x38
|  __might_resched+0x180/0x230
|  __might_sleep+0x4c/0xa0
|  __mutex_lock+0x5c/0x450
|  mutex_lock_nested+0x30/0x40
|  create_kpti_ng_temp_pgd+0x4fc/0x6d0
|  kpti_install_ng_mappings+0x2b8/0x3b0
|  cpu_enable_non_boot_scope_capabilities+0x7c/0xd0
|  multi_cpu_stop+0xa0/0x18c
|  cpu_stopper_thread+0x88/0x11c
|  smpboot_thread_fn+0x1ec/0x290
|  kthread+0x118/0x120
|  ret_from_fork+0x10/0x20

Since commit:

  ee017ee353 ("arm64/mm: avoid fixmap race condition when create pud mapping")

... once the kernel leave the SYSTEM_BOOTING state, the fixmap pagetable
entries are protected by the fixmap_lock mutex.

The new KPTI rewrite code uses __create_pgd_mapping() to create a
temporary pagetable. This happens in atomic context, after secondary
CPUs are brought up and the kernel has left the SYSTEM_BOOTING state.
Hence we try to acquire a mutex in atomic context, which is generally
unsound (though benign in this case as the mutex should be free and all
other CPUs are quiescent).

This patch avoids the issue by pulling the mutex out of alloc_init_pud()
and calling it at a higher level in the pagetable manipulation code.
This allows it to be used without locking where one CPU is known to be
in exclusive control of the machine, even after having left the
SYSTEM_BOOTING state.

Fixes: 47546a1912 ("arm64: mm: install KPTI nG mappings with MMU enabled")
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20220920134731.1625740-1-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2022-09-22 12:55:39 +01:00
Zenghui Yu
522c9a64c7 KVM: arm64: Use kmemleak_free_part_phys() to unregister hyp_mem_base
With commit 0c24e06119 ("mm: kmemleak: add rbtree and store physical
address for objects allocated with PA"), kmemleak started to put the
objects allocated with physical address onto object_phys_tree_root tree.
The kmemleak_free_part() therefore no longer worked as expected on
physically allocated objects (hyp_mem_base in this case) as it attempted to
search and remove things in object_tree_root tree.

Fix it by using kmemleak_free_part_phys() to unregister hyp_mem_base. This
fixes an immediate crash when booting a KVM host in protected mode with
kmemleak enabled.

Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220908130659.2021-1-yuzenghui@huawei.com
2022-09-19 17:59:48 +01:00
Arnd Bergmann
7b9a516a91 i.MX fixes for 6.0, 2nd round:
- A couple of TQMa8MPQL device tree fixes from Alexander Stein on button
   GPIOs and PCF85063 RTC alarm pinctrl.
 - Include phy-imx8-pcie.h header in tqma8mqml-mba8mx device tree to fix
   build errors when this SoM dtsi is included on customer carrier boards.
 - Remove GPU power domain reset from i.MX8MN device tree to fix
   a sporadical hang seen with GPUMIX powering up.
 - Correct CPLD_Dn GPIO label mapping for Toradex Verdin based Menlo
   board.
 - Add ARCH_NXP back to defconfig, which was dropped accidentally by
   commit 566e373fe0 ("arm64: Kconfig.platforms: Group NXP platforms
   together").
 - Add missing #reset-cells for i.MX8ULP PCC clock controllers.
 - Update PMIC voltages for imx8mm-verdin board to fix an issue with one
   Toradex SKU that uses a consumer-grade chip that is capable of going up
   to 1.8GHz at 1.00V.
 - A series of imx8mp-venice-gw74xx device tree changes from Tim Harvey
   to fix things on CAN STBY polarity, KSZ9477 CPU uplink port and
   phy-mode.
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Merge tag 'imx-fixes-6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes

i.MX fixes for 6.0, 2nd round:

- A couple of TQMa8MPQL device tree fixes from Alexander Stein on button
  GPIOs and PCF85063 RTC alarm pinctrl.
- Include phy-imx8-pcie.h header in tqma8mqml-mba8mx device tree to fix
  build errors when this SoM dtsi is included on customer carrier boards.
- Remove GPU power domain reset from i.MX8MN device tree to fix
  a sporadical hang seen with GPUMIX powering up.
- Correct CPLD_Dn GPIO label mapping for Toradex Verdin based Menlo
  board.
- Add ARCH_NXP back to defconfig, which was dropped accidentally by
  commit 566e373fe0 ("arm64: Kconfig.platforms: Group NXP platforms
  together").
- Add missing #reset-cells for i.MX8ULP PCC clock controllers.
- Update PMIC voltages for imx8mm-verdin board to fix an issue with one
  Toradex SKU that uses a consumer-grade chip that is capable of going up
  to 1.8GHz at 1.00V.
- A series of imx8mp-venice-gw74xx device tree changes from Tim Harvey
  to fix things on CAN STBY polarity, KSZ9477 CPU uplink port and
  phy-mode.

* tag 'imx-fixes-6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  arm64: dts: imx8mp-venice-gw74xx: fix port/phy validation
  arm64: dts: imx8mp-venice-gw74xx: fix ksz9477 cpu port
  arm64: dts: imx8mp-venice-gw74xx: fix CAN STBY polarity
  arm64: dts: tqma8mqml: Include phy-imx8-pcie.h header
  arm64: defconfig: enable ARCH_NXP
  arm64: dts: imx8mp-tqma8mpql-mba8mpxl: add missing pinctrl for RTC alarm
  arm64: dts: imx8mm-verdin: extend pmic voltages
  arm64: dts: imx8ulp: add #reset-cells for pcc
  arm64: dts: tqma8mpxl-ba8mpxl: Fix button GPIOs
  arm64: dts: imx8mn: remove GPU power domain reset
  arm64: dts: imx8mm: Reverse CPLD_Dn GPIO label mapping on MX8Menlo

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-09-15 16:18:31 +02:00
Tim Harvey
f7fc391a5e arm64: dts: imx8mp-venice-gw74xx: fix port/phy validation
Since commit 65ac79e181 ("net: dsa: microchip: add the phylink
get_caps") the phy-mode must be set otherwise the switch driver will
assume "NA" mode and invalidate the port.

Fixes: 7899eb6cb1 ("arm64: dts: imx: Add i.MX8M Plus Gateworks gw7400 dts support")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-09-14 11:45:09 +08:00
Tim Harvey
c3681de3b8 arm64: dts: imx8mp-venice-gw74xx: fix ksz9477 cpu port
The CPU uplink port on the KSZ9477 is P5 not P6 - fix this.

Fixes: 7899eb6cb1 ("arm64: dts: imx: Add i.MX8M Plus Gateworks gw7400 dts support")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-09-13 10:23:35 +08:00
Tim Harvey
e4ef088563 arm64: dts: imx8mp-venice-gw74xx: fix CAN STBY polarity
The CAN STBY poarlity is active-low. Specify it as such by removing the
'enable-active-high' property and updating the gpio property.

Fixes: 7899eb6cb1 ("arm64: dts: imx: Add i.MX8M Plus Gateworks gw7400 dts support")
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-09-13 10:23:03 +08:00
Arnd Bergmann
78c94808a4 Drop some not-specified properties, fix phy-supply properties,
fix edp clock on Gru, fix usb port on BPI-R2-Pro, fix license typo,
 fix wlan-wake-pin on Gru-Bob and lower the sd-card speed on Quartz64-B
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Merge tag 'v6.0-rockchip-dtsfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into arm/fixes

Drop some not-specified properties, fix phy-supply properties,
fix edp clock on Gru, fix usb port on BPI-R2-Pro, fix license typo,
fix wlan-wake-pin on Gru-Bob and lower the sd-card speed on Quartz64-B

* tag 'v6.0-rockchip-dtsfixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  arm64: dts: rockchip: Remove 'enable-active-low' from rk3566-quartz64-a
  arm64: dts: rockchip: Remove 'enable-active-low' from rk3399-puma
  arm64: dts: rockchip: fix property for usb2 phy supply on rk3568-evb1-v10
  arm64: dts: rockchip: fix property for usb2 phy supply on rock-3a
  arm64: dts: rockchip: Set RK3399-Gru PCLK_EDP to 24 MHz
  arm64: dts: rockchip: fix upper usb port on BPI-R2-Pro
  arm64: dts: rockchip: Fix typo in lisense text for PX30.Core
  arm64: dts: rockchip: Pull up wlan wake# on Gru-Bob
  arm64: dts: rockchip: Lower sd speed on quartz64-b

Link: https://lore.kernel.org/r/2645885.mvXUDI8C0e@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-09-12 16:39:22 +02:00
Fabio Estevam
70ae49c5ac arm64: dts: tqma8mqml: Include phy-imx8-pcie.h header
imx8mm-tqma8mqml.dtsi has PCIe support, so it should include
<dt-bindings/phy/phy-imx8-pcie.h>.

Otherwise, there are build errors when this SoM dtsi is included
on customers' carrier boards.

While at it, remove the PCI header from imx8mm-tqma8mqml-mba8mx.dts,
which is now unneeded.

Fixes: 1d84283101 ("arm64: dts: tqma8mqml: add PCIe support")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-09-12 21:07:53 +08:00
Michael Walle
3c20d96181 arm64: defconfig: enable ARCH_NXP
Commit 566e373fe0 ("arm64: Kconfig.platforms: Group NXP platforms
together") introduced a new symbol ARCH_NXP and made ARCH_LAYERSCAPE
(among others) depend on it, but didn't enable it in the defconfig.
Thus, now the defconfig doesn't include support for any NXP
architectures anymore. Fix it.

Fixes: 566e373fe0 ("arm64: Kconfig.platforms: Group NXP platforms together")
Signed-off-by: Michael Walle <michael@walle.cc>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-09-12 18:15:49 +08:00
Alexander Stein
45b91a1589 arm64: dts: imx8mp-tqma8mpql-mba8mpxl: add missing pinctrl for RTC alarm
Although the RTC is on the module, the RTC_EVENT# signal is connected
on the mainboard. Already set by bootloader, but make it explicit in Linux
as well.

Fixes: 418d1d840e ("arm64: dts: freescale: add initial device tree for TQMa8MPQL with i.MX8MP")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-09-12 18:06:39 +08:00
Linus Torvalds
087aa69a9f arm64 fixes for -rc5
- Disable in-kernel BTI when compiling with GCC, as it makes invalid
   assumptions about the distance between functions which has led to
   crashes when calling modules on a CPU with BTI support.
 
 - Remove bogus TIF_SME flag management if memory allocation fails in the
   ptrace code.
 
 - Fix the resume path when configured for 52-bit virtual addressing.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Three small arm64 fixes, all related to optional architecture
  extensions: BTI, SME and 52-bit virtual addressing:

   - Disable in-kernel BTI when compiling with GCC, as it makes invalid
     assumptions about the distance between functions which has led to
     crashes when calling modules on a CPU with BTI support

   - Remove bogus TIF_SME flag management if memory allocation fails in
     the ptrace code

   - Fix the resume path when configured for 52-bit virtual addressing"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: mm: fix resume for 52-bit enabled builds
  arm64/ptrace: Don't clear calling process' TIF_SME on OOM
  arm64/bti: Disable in kernel BTI when cross section thunks are broken
2022-09-11 07:48:21 -04:00
Joey Gouly
3fe3fd5f30 arm64: mm: fix resume for 52-bit enabled builds
__cpu_setup() was changed to take the actual number of VA bits in x0,
however the resume path was not updated at the same time.

Load `vabits_actual` in the resume path, to ensure that the correct
number of VA bits is used.

This fixes booting v6.0-rc kernels on my Juno.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Fixes: 0aaa68532e ("arm64: mm: fix booting with 52-bit address space")
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20220909124311.38489-1-joey.gouly@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
2022-09-10 14:46:28 +01:00
Mark Brown
d105d6920e arm64/ptrace: Don't clear calling process' TIF_SME on OOM
If allocating memory for the target SVE state in za_set() fails we clear
TIF_SME for the ptracing task which is obviously not correct.  If we are
here we know that the target task already had neither TIF_SVE nor
TIF_SME set since we only need to allocate if either the target had not
used either SVE or SME and had no need to allocate state before or we
just changed the vector length with vec_set_vector_length() which clears
TIF_ for us on allocation failure so just remove the clear entirely.

Reported-by: Wang ShaoBo <bobo.shaobowang@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220902132802.39682-1-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2022-09-08 14:26:59 +01:00
Mark Brown
c0a454b904 arm64/bti: Disable in kernel BTI when cross section thunks are broken
GCC does not insert a `bti c` instruction at the beginning of a function
when it believes that all callers reach the function through a direct
branch[1]. Unfortunately the logic it uses to determine this is not
sufficiently robust, for example not taking account of functions being
placed in different sections which may be loaded separately, so we may
still see thunks being generated to these functions. If that happens,
the first instruction in the callee function will result in a Branch
Target Exception due to the missing landing pad.

While this has currently only been observed in the case of modules
having their main code loaded sufficiently far from their init section
to require thunks it could potentially happen for other cases so the
safest thing is to disable BTI for the kernel when building with an
affected toolchain.

[1]: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106671

Reported-by: D Scott Phillips <scott@os.amperecomputing.com>
[Bits of the commit message are lifted from his report & workaround]
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220905142255.591990-1-broonie@kernel.org
Cc: <stable@vger.kernel.org> # v5.10+
Signed-off-by: Will Deacon <will@kernel.org>
2022-09-06 08:56:46 +01:00
Philippe Schenker
b5a76cb38d arm64: dts: imx8mm-verdin: extend pmic voltages
Currently, we limited the voltages from the PMIC very strictly. This
causes an issue with one Toradex SKU that uses a consumer-grade chip
that is capable of going up to 1.8GHz at 1.00V.

Extend the ranges to min/max values of the SoC operating ranges (table
10) in the datasheet. Detailed explanation as follows:

BUCK2:
  - As already described above, the SKU with the consumer-grade chip
    needs a voltage of at least 1.00V. 1.05V is chosen now as this is
    listed as the maximum. Both industrial and consumer-grade chips have
    an absolute maximum rating of 1.15V which makes it still safe to put
    1.05V
  - Lower the regulator-min value to the smallest value allowed from the
    Quad-A53, 1.2GHz version of the SoC

BUCK3:
  - This regulator is used for SoC input voltages VDD_GPU, VDD_VPU and
    VDD_DRAM.
  - Use the smallest value of these three inputs as the regulator-min
  - Use the largest value of these three inputs as the regulator-max

LDO2:
  - This LDO is used for VDD_SNVS_0P8 SoC input voltage. As this has a
    single nominal input voltage just put this in the middle of 0.8V.

Fixes: 6a57f224f7 ("arm64: dts: freescale: add initial support for verdin imx8m mini")
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-09-06 10:05:18 +08:00
Linus Torvalds
53e99dcff6 ARM: SoC fixes for 6.0
These are the expected fixes for the SoC tree. I have let the
 patches pile up a little too long, so this is bigger than I
 would have liked.
 
  - Minor build fixes for Broadcom STB and NXP i.MX8M SoCs as well\
    as TEE firmware
 
  - Updates to the MAINTAINERS file for the PolarFire SoC
 
  - Minor DT fixes for Renesas White Hawk and Arm Versatile and
    Juno platforms
 
  - A fix for a missing dependnecy in the NXP DPIO driver
 
  - Broadcom BCA fixes to the newly added devicetree files
 
  - Multiple fixes for Microchip AT91 based SoCs, dealing with
    self-refresh timings and regulator settings in DT
 
  - Several DT fixes for NXP i.MX platforms, dealing with incorrect
    GPIO settings, extraneous nodes, and a wrong clock setting.
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Merge tag 'soc-fixes-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "These are the expected fixes for the SoC tree. I have let the patches
  pile up a little too long, so this is bigger than I would have liked.

   - Minor build fixes for Broadcom STB and NXP i.MX8M SoCs as well\ as
     TEE firmware

   - Updates to the MAINTAINERS file for the PolarFire SoC

   - Minor DT fixes for Renesas White Hawk and Arm Versatile and Juno
     platforms

   - A fix for a missing dependnecy in the NXP DPIO driver

   - Broadcom BCA fixes to the newly added devicetree files

   - Multiple fixes for Microchip AT91 based SoCs, dealing with
     self-refresh timings and regulator settings in DT

   - Several DT fixes for NXP i.MX platforms, dealing with incorrect
     GPIO settings, extraneous nodes, and a wrong clock setting"

* tag 'soc-fixes-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (45 commits)
  soc: fsl: select FSL_GUTS driver for DPIO
  ARM: dts: at91: sama5d2_icp: don't keep vdd_other enabled all the time
  ARM: dts: at91: sama5d27_wlsom1: don't keep ldo2 enabled all the time
  ARM: dts: at91: sama7g5ek: specify proper regulator output ranges
  ARM: dts: at91: sama5d2_icp: specify proper regulator output ranges
  ARM: dts: at91: sama5d27_wlsom1: specify proper regulator output ranges
  ARM: at91: pm: fix DDR recalibration when resuming from backup and self-refresh
  ARM: at91: pm: fix self-refresh for sama7g5
  soc: brcmstb: pm-arm: Fix refcount leak and __iomem leak bugs
  ARM: configs: at91: remove CONFIG_MICROCHIP_PIT64B
  ARM: ixp4xx: fix typos in comments
  arm64: dts: renesas: r8a779g0: Fix HSCIF0 interrupt number
  tee: fix compiler warning in tee_shm_register()
  arm64: dts: freescale: verdin-imx8mp: fix atmel_mxt_ts reset polarity
  arm64: dts: freescale: verdin-imx8mm: fix atmel_mxt_ts reset polarity
  arm64: dts: imx8mp: Fix I2C5 GPIO assignment on i.MX8M Plus DHCOM
  arm64: dts: imx8mm-venice-gw7901: fix port/phy validation
  arm64: dts: verdin-imx8mm: add otg2 pd to usbphy
  soc: imx: gpcv2: Assert reset before ungating clock
  arm64: dts: ls1028a-qds-65bb: don't use in-band autoneg for 2500base-x
  ...
2022-09-05 17:44:48 -04:00
Fabio Estevam
ea89926d96 arm64: dts: rockchip: Remove 'enable-active-low' from rk3566-quartz64-a
The 'enable-active-low' property is not a valid one.

Only 'enable-active-high' is valid, and when this property is absent
the gpio regulator will act as active low by default.

Remove the invalid 'enable-active-low' property.

Fixes: b33a22a1e7 ("arm64: dts: rockchip: add basic dts for Pine64 Quartz64-A")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://lore.kernel.org/r/20220827175140.1696699-2-festevam@denx.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-09-05 12:18:20 +02:00
Fabio Estevam
a994b34b9a arm64: dts: rockchip: Remove 'enable-active-low' from rk3399-puma
The 'enable-active-low' property is not a valid one.

Only 'enable-active-high' is valid, and when this property is absent
the gpio regulator will act as active low by default.

Remove the invalid 'enable-active-low' property.

Fixes: 2c66fc34e9 ("arm64: dts: rockchip: add RK3399-Q7 (Puma) SoM")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Link: https://lore.kernel.org/r/20220827175140.1696699-1-festevam@denx.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-09-05 12:18:08 +02:00
Michael Riesch
1988e3ef05 arm64: dts: rockchip: fix property for usb2 phy supply on rk3568-evb1-v10
The property "vbus-supply" was copied from the vendor kernel but is not
available in mainstream. Use correct property "phy-supply".

Fixes: d6cfb110b0 ("arm64: dts: rockchip: add usb3 support to rk3568-evb1-v10")
Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Link: https://lore.kernel.org/r/20220905064335.104650-2-michael.riesch@wolfvision.net
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-09-05 12:00:42 +02:00
Michael Riesch
43e1d6d3b4 arm64: dts: rockchip: fix property for usb2 phy supply on rock-3a
The property "vbus-supply" was copied from the vendor kernel but is not
available in mainstream. Use correct property "phy-supply".

Fixes: 254a1f6a29 ("arm64: dts: rockchip: add usb3 support to the radxa rock3 model a")
Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Link: https://lore.kernel.org/r/20220905064335.104650-1-michael.riesch@wolfvision.net
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-09-05 12:00:42 +02:00
Peng Fan
5fa383a25f arm64: dts: imx8ulp: add #reset-cells for pcc
The binding file clock/imx8ulp-pcc-clock.yaml indicates '#reset-cells'
is a required property, add it.

Fixes: fe6291e963 ("arm64: dts: imx8ulp: Add the basic dtsi file for imx8ulp")
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-09-05 11:38:44 +08:00
Alexander Stein
d707ff3470 arm64: dts: tqma8mpxl-ba8mpxl: Fix button GPIOs
They were in wrong order, so fix it by switching them.

Fixes: 418d1d840e ("arm64: dts: freescale: add initial device tree for TQMa8MPQL with i.MX8MP")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-09-05 11:30:42 +08:00
Marco Felsch
347155d1fa arm64: dts: imx8mn: remove GPU power domain reset
The PGC (power gating controller) already handles the reset for the
GPUMIX power domain. By specifying it within the device tree the reset
it issued a 2nd time. This confuses the hardware during power up and
sporadically hangs the SoC. Fix this by removing the reset property and
let the hardware handle the reset.

Fixes: 9a0f3b157e ("arm64: dts: imx8mn: Enable GPU")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-09-05 09:29:26 +08:00
zain wang
8123437cf4 arm64: dts: rockchip: Set RK3399-Gru PCLK_EDP to 24 MHz
We've found the AUX channel to be less reliable with PCLK_EDP at a
higher rate (typically 25 MHz). This is especially important on systems
with PSR-enabled panels (like Gru-Kevin), since we make heavy, constant
use of AUX.

According to Rockchip, using any rate other than 24 MHz can cause
"problems between syncing the PHY an PCLK", which leads to all sorts of
unreliabilities around register operations.

Fixes: d67a38c5a6 ("arm64: dts: rockchip: move core edp from rk3399-kevin to shared chromebook")
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: zain wang <wzz@rock-chips.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Link: https://lore.kernel.org/r/20220830131212.v2.1.I98d30623f13b785ca77094d0c0fd4339550553b6@changeid
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-09-04 18:17:47 +02:00
Marek Vasut
8194a35622 arm64: dts: imx8mm: Reverse CPLD_Dn GPIO label mapping on MX8Menlo
The CPLD_Dn GPIO assignment between SoM and CPLD has now been clarified
in schematic and the assignment is reversed. Update the DT to match the
hardware.

Fixes: 510c527b4f ("arm64: dts: imx8mm: Add i.MX8M Mini Toradex Verdin based Menlo board")
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2022-09-04 20:37:28 +08:00
Linus Torvalds
cf3488fa25 arm64 fixes for -rc4
- Fix two boot issues caused by the recent head.S rework when !KASLR
 
 - Fix calculation of crashkernel memory reservation
 
 - Fix bogus error check in PMU IRQ probing code
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "It's a lot smaller than last week, with the star of the show being a
  couple of fixes to head.S addressing a boot regression introduced by
  the recent overhaul of that code in non-default configurations (i.e.
  KASLR disabled).

  The first of those two resolves the issue reported (and bisected) by
  Mikulus in the wait_on_bit() thread.

  Summary:

   - Fix two boot issues caused by the recent head.S rework when !KASLR

   - Fix calculation of crashkernel memory reservation

   - Fix bogus error check in PMU IRQ probing code"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: mm: Reserve enough pages for the initial ID map
  perf/arm_pmu_platform: fix tests for platform_get_irq() failure
  arm64: head: Ignore bogus KASLR displacement on non-relocatable kernels
  arm64/kexec: Fix missing extra range for crashkres_low.
2022-09-02 10:32:30 -07:00
Arnd Bergmann
12f09234bd Renesas fixes for v6.0
- Fix the serial console on the Renesas White Hawk development board.
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Merge tag 'renesas-fixes-for-v6.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/fixes

Renesas fixes for v6.0

  - Fix the serial console on the Renesas White Hawk development board.

* tag 'renesas-fixes-for-v6.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  arm64: dts: renesas: r8a779g0: Fix HSCIF0 interrupt number

Link: https://lore.kernel.org/r/ab2866f12ca18747413ba41409231d44e0c6149b.1662111547.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-09-02 12:05:28 +02:00
Arnd Bergmann
92c7c5b0f9 Armv8 Juno fixes for v6.0
Couple of fixes to add missing MHU secure-irq and remove the legacy
 coresight 'slave-mode' property.
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Merge tag 'juno-fixes-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into arm/fixes

Armv8 Juno fixes for v6.0

Couple of fixes to add missing MHU secure-irq and remove the legacy
coresight 'slave-mode' property.

* tag 'juno-fixes-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  arm64: dts: juno: Add missing MHU secure-irq
  arm64: dts: arm: juno: Remove legacy Coresight 'slave-mode' property

Link: https://lore.kernel.org/r/20220829174420.207880-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-09-02 11:19:29 +02:00
Ard Biesheuvel
5fbc49cef9 arm64: mm: Reserve enough pages for the initial ID map
The logic that conditionally allocates one additional page at each
swapper page table level if KASLR is enabled is also applied to the
initial ID map, now that we have started using the same set of macros
to allocate the space for it.

However, the placement of the kernel in physical memory might result in
additional pages being needed at any level, even if KASLR is disabled in
the build. So account for this in the computation.

Fixes: c3cee924bd ("arm64: head: cover entire kernel image in initial ID map")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20220826164800.2059148-1-ardb@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2022-09-01 12:02:39 +01:00
Ard Biesheuvel
e62b9e6f25 arm64: head: Ignore bogus KASLR displacement on non-relocatable kernels
Even non-KASLR kernels can be built as relocatable, to work around
broken bootloaders that violate the rules regarding physical placement
of the kernel image - in this case, the physical offset modulo 2 MiB is
used as the KASLR offset, and all absolute symbol references are fixed
up in the usual way. This workaround is enabled by default.

CONFIG_RELOCATABLE can also be disabled entirely, in which case the
relocation code and the code that captures the offset are omitted from
the build. However, since commit aacd149b62 ("arm64: head: avoid
relocating the kernel twice for KASLR"), this code got out of sync, and
we still add the offset to the kernel virtual address before populating
the page tables even though we never capture it. This means we add a
bogus value instead, breaking the boot entirely.

Fixes: aacd149b62 ("arm64: head: avoid relocating the kernel twice for KASLR")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Mikulas Patocka <mpatocka@redhat.com>
Link: https://lore.kernel.org/r/20220827070904.2216989-1-ardb@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2022-09-01 11:50:44 +01:00
Levi Yun
4831be702b arm64/kexec: Fix missing extra range for crashkres_low.
Like crashk_res, Calling crash_exclude_mem_range function with
crashk_low_res area would need extra crash_mem range too.

Add one more extra cmem slot in case of crashk_low_res is used.

Signed-off-by: Levi Yun <ppbuk5246@gmail.com>
Fixes: 944a45abfa ("arm64: kdump: Reimplement crashkernel=X")
Cc: <stable@vger.kernel.org> # 5.19.x
Acked-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220831103913.12661-1-ppbuk5246@gmail.com
Signed-off-by: Will Deacon <will@kernel.org>
2022-09-01 11:50:00 +01:00
Arnd Bergmann
a3bedd2420 i.MX fixes for 6.0:
- Remove superfluous interrupt-names from imx8mq-tqma8mq RTC device to
   silence dtbs_check warning.
 - A few Verdin board fixes on CAN clock frequency, mcp251xfd interrupt,
   atmel_mxt_ts reset polarity and USB PHY.
 - Remove duplicated node and fix spi-flash compatible for
   imx6qdl-kontron-samx6i.
 - A couple of i.MX8M Plus DHCOM fixes from Marek Vasut on ECSPI1 pinmux
   and I2C5 GPIO assignment.
 - A couple of Venice fixes on SAI2 pin settings and phy-mode.
 - Drop in-band autoneg for 2500base-x phy-mode on ls1028a-qds-65bb
   board.
 - Revert the power device name setting change from imx8m-blk-ctrl
   driver, as it causes issue for sysfs cleanup path.
 - Fix gpcv2 driver to assert reset before ungating clock.
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Merge tag 'imx-fixes-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes

i.MX fixes for 6.0:

- Remove superfluous interrupt-names from imx8mq-tqma8mq RTC device to
  silence dtbs_check warning.
- A few Verdin board fixes on CAN clock frequency, mcp251xfd interrupt,
  atmel_mxt_ts reset polarity and USB PHY.
- Remove duplicated node and fix spi-flash compatible for
  imx6qdl-kontron-samx6i.
- A couple of i.MX8M Plus DHCOM fixes from Marek Vasut on ECSPI1 pinmux
  and I2C5 GPIO assignment.
- A couple of Venice fixes on SAI2 pin settings and phy-mode.
- Drop in-band autoneg for 2500base-x phy-mode on ls1028a-qds-65bb
  board.
- Revert the power device name setting change from imx8m-blk-ctrl
  driver, as it causes issue for sysfs cleanup path.
- Fix gpcv2 driver to assert reset before ungating clock.

* tag 'imx-fixes-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  arm64: dts: freescale: verdin-imx8mp: fix atmel_mxt_ts reset polarity
  arm64: dts: freescale: verdin-imx8mm: fix atmel_mxt_ts reset polarity
  arm64: dts: imx8mp: Fix I2C5 GPIO assignment on i.MX8M Plus DHCOM
  arm64: dts: imx8mm-venice-gw7901: fix port/phy validation
  arm64: dts: verdin-imx8mm: add otg2 pd to usbphy
  soc: imx: gpcv2: Assert reset before ungating clock
  arm64: dts: ls1028a-qds-65bb: don't use in-band autoneg for 2500base-x
  ARM: dts: imx6qdl-kontron-samx6i: fix spi-flash compatible
  ARM: dts: imx6qdl-kontron-samx6i: remove duplicated node
  ARM: dts: imx6qdl-vicut1.dtsi: Fix node name backlight_led
  arm64: dts: imx8mq-tqma8mq: Remove superfluous interrupt-names
  arm64: dts: imx8mp: Adjust ECSPI1 pinmux on i.MX8M Plus DHCOM
  arm64: dts: imx8mp-venice-gw74xx: fix sai2 pin settings
  arm64: dts: imx8mm-verdin: use level interrupt for mcp251xfd
  arm64: dts: imx8mm-verdin: update CAN clock to 40MHz
  Revert "soc: imx: imx8m-blk-ctrl: set power device name"

Link: https://lore.kernel.org/r/20220823092631.GV149610@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-08-29 11:02:27 +02:00
Geert Uytterhoeven
ab2866f12c arm64: dts: renesas: r8a779g0: Fix HSCIF0 interrupt number
The interrupt number for the HSCIF0 serial port, which serves as the
serial console on the White Hawk board, is incorrect, causing userspace
to hang immediately as soon as it tries to print something.
Kernel output is unaffected, as it is printed using polling.

Fixes: 987da486d8 ("arm64: dts: renesas: Add Renesas R8A779G0 SoC support")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/751dcef40d4534e856ed49b1d5b3a3e8d365ec42.1661419377.git.geert+renesas@glider.be
2022-08-29 09:12:12 +02:00
Linus Torvalds
e022620b5d arm64 fixes for -rc3
- Fix workaround for Cortex-A76 erratum #1286807
 
 - Add workaround for AMU erratum #2457168 on Cortex-A510
 
 - Drop reference to removed CONFIG_ARCH_RANDOM #define
 
 - Fix parsing of the "rodata=full" cmdline option
 
 - Fix a bunch of issues in the SME register state switching and sigframe code
 
 - Fix incorrect extraction of the CTR_EL0.CWG register field
 
 - Fix ACPI cache topology probing when the PPTT is not present
 
 - Trivial comment and whitespace fixes
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "A bumper crop of arm64 fixes for -rc3.

  The largest change is fixing our parsing of the 'rodata=full' command
  line option, which kstrtobool() started treating as 'rodata=false'.
  The fix actually makes the parsing of that option much less fragile
  and updates the documentation at the same time.

  We still have a boot issue pending when KASLR is disabled at compile
  time, but there's a fresh fix on the list which I'll send next week if
  it holds up to testing.

  Summary:

   - Fix workaround for Cortex-A76 erratum #1286807

   - Add workaround for AMU erratum #2457168 on Cortex-A510

   - Drop reference to removed CONFIG_ARCH_RANDOM #define

   - Fix parsing of the "rodata=full" cmdline option

   - Fix a bunch of issues in the SME register state switching and sigframe code

   - Fix incorrect extraction of the CTR_EL0.CWG register field

   - Fix ACPI cache topology probing when the PPTT is not present

   - Trivial comment and whitespace fixes"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64/sme: Don't flush SVE register state when handling SME traps
  arm64/sme: Don't flush SVE register state when allocating SME storage
  arm64/signal: Flush FPSIMD register state when disabling streaming mode
  arm64/signal: Raise limit on stack frames
  arm64/cache: Fix cache_type_cwg() for register generation
  arm64/sysreg: Guard SYS_FIELD_ macros for asm
  arm64/sysreg: Directly include bitfield.h
  arm64: cacheinfo: Fix incorrect assignment of signed error value to unsigned fw_level
  arm64: errata: add detection for AMEVCNTR01 incrementing incorrectly
  arm64: fix rodata=full
  arm64: Fix comment typo
  docs/arm64: elf_hwcaps: unify newlines in HWCAP lists
  arm64: adjust KASLR relocation after ARCH_RANDOM removal
  arm64: Fix match_list for erratum 1286807 on Arm Cortex-A76
2022-08-26 11:32:53 -07:00
Frank Wunderlich
388f9f0a7f arm64: dts: rockchip: fix upper usb port on BPI-R2-Pro
- extcon is no more needed in 5.19 - so drop it
  commit 51a9b2c03d ("phy: rockchip-inno-usb2: Handle ID IRQ")
- dr_mode was changed from host to otg in rk356x.dtsi
  commit bc405bb3ee ("arm64: dts: rockchip: enable otg/drd
    operation of usb_host0_xhci in rk356x")
  change it back on board level as id-pin on r2pro is not connected

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Link: https://lore.kernel.org/r/20220821121929.244112-1-linux@fw-web.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-08-23 14:34:06 +02:00
Jagan Teki
4a00c43818 arm64: dts: rockchip: Fix typo in lisense text for PX30.Core
Fix the Amarula Solutions typo mistake in lisense text added
in Engicam PX30.Core SoM dtsi.

Fixes: d92a7c331f ("arm64: dts: rockchip: Add Engicam PX30.Core SOM")
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Link: https://lore.kernel.org/r/20220822103524.266731-1-jagan@amarulasolutions.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-08-23 14:34:06 +02:00
Brian Norris
e5467359a7 arm64: dts: rockchip: Pull up wlan wake# on Gru-Bob
The Gru-Bob board does not have a pull-up resistor on its
WLAN_HOST_WAKE# pin, but Kevin does. The production/vendor kernel
specified the pin configuration correctly as a pull-up, but this didn't
get ported correctly to upstream.

This means Bob's WLAN_HOST_WAKE# pin is floating, causing inconsistent
wakeup behavior.

Note that bt_host_wake_l has a similar dynamic, but apparently the
upstream choice was to redundantly configure both internal and external
pull-up on Kevin (see the "Kevin has an external pull up" comment in
rk3399-gru.dtsi). This doesn't cause any functional problem, although
it's perhaps wasteful.

Fixes: 8559bbeeb8 ("arm64: dts: rockchip: add Google Bob")
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20220822164453.1.I75c57b48b0873766ec993bdfb7bc1e63da5a1637@changeid
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-08-23 14:34:05 +02:00
Nicolas Frattaroli
1ea90b2d29 arm64: dts: rockchip: Lower sd speed on quartz64-b
The previously stated speed of sdr-104 is too high for the hardware
to reliably communicate with some fast SD cards.

Lower this to sd-uhs-sdr50 to fix this.

Fixes: dcc8c66bef ("arm64: dts: rockchip: add Pine64 Quartz64-B device tree")

Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Link: https://lore.kernel.org/r/20220721044307.48641-1-frattaroli.nicolas@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-08-23 14:34:05 +02:00
Mark Brown
714f3cbd70 arm64/sme: Don't flush SVE register state when handling SME traps
Currently as part of handling a SME access trap we flush the SVE register
state. This is not needed and would corrupt register state if the task has
access to the SVE registers already. For non-streaming mode accesses the
required flushing will be done in the SVE access trap. For streaming
mode SVE register accesses the architecture guarantees that the register
state will be flushed when streaming mode is entered or exited so there is
no need for us to do so. Simply remove the register initialisation.

Fixes: 8bd7f91c03 ("arm64/sme: Implement traps and syscall handling for SME")
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220817182324.638214-5-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2022-08-23 11:29:12 +01:00
Mark Brown
826a4fdd2a arm64/sme: Don't flush SVE register state when allocating SME storage
Currently when taking a SME access trap we allocate storage for the SVE
register state in order to be able to handle storage of streaming mode SVE.
Due to the original usage in a purely SVE context the SVE register state
allocation this also flushes the register state for SVE if storage was
already allocated but in the SME context this is not desirable. For a SME
access trap to be taken the task must not be in streaming mode so either
there already is SVE register state present for regular SVE mode which would
be corrupted or the task does not have TIF_SVE and the flush is redundant.

Fix this by adding a flag to sve_alloc() indicating if we are in a SVE
context and need to flush the state. Freshly allocated storage is always
zeroed either way.

Fixes: 8bd7f91c03 ("arm64/sme: Implement traps and syscall handling for SME")
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220817182324.638214-4-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2022-08-23 11:29:11 +01:00
Mark Brown
ea64baacbc arm64/signal: Flush FPSIMD register state when disabling streaming mode
When handling a signal delivered to a context with streaming mode enabled
we will disable streaming mode for the signal handler, when doing so we
should also flush the saved FPSIMD register state like exiting streaming
mode in the hardware would do so that if that state is reloaded we get the
same behaviour. Without this we will reload whatever the last FPSIMD state
that was saved for the task was.

Fixes: 40a8e87bb3 ("arm64/sme: Disable ZA and streaming mode when handling signals")
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220817182324.638214-3-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2022-08-23 11:29:11 +01:00
Mark Brown
7ddcaf78e9 arm64/signal: Raise limit on stack frames
The signal code has a limit of 64K on the size of a stack frame that it
will generate, if this limit is exceeded then a process will be killed if
it receives a signal. Unfortunately with the advent of SME this limit is
too small - the maximum possible size of the ZA register alone is 64K. This
is not an issue for practical systems at present but is easily seen using
virtual platforms.

Raise the limit to 256K, this is substantially more than could be used by
any current architecture extension.

Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20220817182324.638214-2-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2022-08-23 11:29:11 +01:00
Mark Brown
53d2d84a1f arm64/cache: Fix cache_type_cwg() for register generation
Ard noticed that since we converted CTR_EL0 to automatic generation we have
been seeing errors on some systems handling the value of cache_type_cwg()
such as

   CPU features: No Cache Writeback Granule information, assuming 128

This is because the manual definition of CTR_EL0_CWG_MASK was done without
a shift while our convention is to define the mask after shifting. This
means that the user in cache_type_cwg() was broken as it was written for
the manually written shift then mask. Fix this by converting to use
SYS_FIELD_GET().

The only other field where the _MASK for this register is used is IminLine
which is at offset 0 so unaffected.

Fixes: 9a3634d023 ("arm64/sysreg: Convert CTR_EL0 to automatic generation")
Reported-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220818213613.733091-4-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2022-08-23 11:26:01 +01:00
Mark Brown
a10edea4ef arm64/sysreg: Guard SYS_FIELD_ macros for asm
The SYS_FIELD_ macros are not safe for assembly contexts, move them inside
the guarded section.

Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220818213613.733091-3-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2022-08-23 11:26:00 +01:00