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To date KVM has relied on kvm_reset_vcpu() failing when the vCPU feature
flags are unsupported by the system. This is a bit messy since
kvm_reset_vcpu() is called at runtime outside of the KVM_ARM_VCPU_INIT
ioctl when it is expected to succeed. Further complicating the matter is
that kvm_reset_vcpu() must tolerate be idemptotent to the config_lock,
as it isn't consistently called with the lock held.
Prepare to move feature compatibility checks out of kvm_reset_vcpu() with
a 'generic' check that compares the user-provided flags with a computed
maximum feature set for the system.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Link: https://lore.kernel.org/r/20230920195036.1169791-2-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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* kvm-arm64/misc:
: Miscellaneous updates
:
: - Put an upper bound on the number of I-cache invalidations by
: cacheline to avoid soft lockups
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: - Get rid of bogus refererence count transfer for THP mappings
:
: - Do a local TLB invalidation on permission fault race
:
: - Fixes for page_fault_test KVM selftest
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: - Add a tracepoint for detecting MMIO instructions unsupported by KVM
KVM: arm64: Add tracepoint for MMIO accesses where ISV==0
KVM: arm64: selftest: Perform ISB before reading PAR_EL1
KVM: arm64: selftest: Add the missing .guest_prepare()
KVM: arm64: Always invalidate TLB for stage-2 permission faults
KVM: arm64: Do not transfer page refcount for THP adjustment
KVM: arm64: Avoid soft lockups due to I-cache maintenance
arm64: tlbflush: Rename MAX_TLBI_OPS
KVM: arm64: Don't use kerneldoc comment for arm64_check_features()
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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It is a pretty well known fact that KVM does not support MMIO emulation
without valid instruction syndrome information (ESR_EL2.ISV == 0). The
current kvm_pr_unimpl() is pretty useless, as it contains zero context
to relate the event to a vCPU.
Replace it with a precise tracepoint that dumps the relevant context
so the user can make sense of what the guest is doing.
Acked-by: Zenghui Yu <yuzenghui@huawei.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231026205306.3045075-1-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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It is possible for multiple vCPUs to fault on the same IPA and attempt
to resolve the fault. One of the page table walks will actually update
the PTE and the rest will return -EAGAIN per our race detection scheme.
KVM elides the TLB invalidation on the racing threads as the return
value is nonzero.
Before commit a12ab1378a88 ("KVM: arm64: Use local TLBI on permission
relaxation") KVM always used broadcast TLB invalidations when handling
permission faults, which had the convenient property of making the
stage-2 updates visible to all CPUs in the system. However now we do a
local invalidation, and TLBI elision leads to the vCPU thread faulting
again on the stale entry. Remember that the architecture permits the TLB
to cache translations that precipitate a permission fault.
Invalidate the TLB entry responsible for the permission fault if the
stage-2 descriptor has been relaxed, regardless of which thread actually
did the job.
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230922223229.1608155-1-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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GUP affects a refcount common to all pages forming the THP. There is
therefore no need to move the refcount from a tail to the head page.
Under the hood it decrements and increments the same counter.
Signed-off-by: Vincent Donnefort <vdonnefort@google.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230928173205.2826598-2-vdonnefort@google.com
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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Gavin reports of soft lockups on his Ampere Altra Max machine when
backing KVM guests with hugetlb pages. Upon further investigation, it
was found that the system is unable to keep up with parallel I-cache
invalidations done by KVM's stage-2 fault handler.
This is ultimately an implementation problem. I-cache maintenance
instructions are available at EL0, so nothing stops a malicious
userspace from hammering a system with CMOs and cause it to fall over.
"Fixing" this problem in KVM is nothing more than slapping a bandage
over a much deeper problem.
Anyway, the kernel already has a heuristic for limiting TLB
invalidations to avoid soft lockups. Reuse that logic to limit I-cache
CMOs done by KVM to map executable pages on systems without FEAT_DIC.
While at it, restructure __invalidate_icache_guest_page() to improve
readability and squeeze our new condition into the existing branching
structure.
Link: https://lore.kernel.org/kvmarm/20230904072826.1468907-1-gshan@redhat.com/
Reviewed-by: Gavin Shan <gshan@redhat.com>
Tested-by: Gavin Shan <gshan@redhat.com>
Link: https://lore.kernel.org/r/20230920080133.944717-3-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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Perhaps unsurprisingly, I-cache invalidations suffer from performance
issues similar to TLB invalidations on certain systems. TLB and I-cache
maintenance all result in DVM on the mesh, which is where the real
bottleneck lies.
Rename the heuristic to point the finger at DVM, such that it may be
reused for limiting I-cache invalidations.
Reviewed-by: Gavin Shan <gshan@redhat.com>
Tested-by: Gavin Shan <gshan@redhat.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20230920080133.944717-2-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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A double-asterisk opening mark to the comment (i.e. '/**') indicates a
comment block is in the kerneldoc format. There's automation in place to
validate that kerneldoc blocks actually adhere to the formatting rules.
The function comment for arm64_check_features() isn't kerneldoc; use a
'regular' comment to silence automation warnings.
Link: https://lore.kernel.org/all/202309112251.e25LqfcK-lkp@intel.com/
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/r/20230913165645.2319017-1-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull sysctl updates from Luis Chamberlain:
"To help make the move of sysctls out of kernel/sysctl.c not incur a
size penalty sysctl has been changed to allow us to not require the
sentinel, the final empty element on the sysctl array. Joel Granados
has been doing all this work. On the v6.6 kernel we got the major
infrastructure changes required to support this. For v6.7-rc1 we have
all arch/ and drivers/ modified to remove the sentinel. Both arch and
driver changes have been on linux-next for a bit less than a month. It
is worth re-iterating the value:
- this helps reduce the overall build time size of the kernel and run
time memory consumed by the kernel by about ~64 bytes per array
- the extra 64-byte penalty is no longer inncurred now when we move
sysctls out from kernel/sysctl.c to their own files
For v6.8-rc1 expect removal of all the sentinels and also then the
unneeded check for procname == NULL.
The last two patches are fixes recently merged by Krister Johansen
which allow us again to use softlockup_panic early on boot. This used
to work but the alias work broke it. This is useful for folks who want
to detect softlockups super early rather than wait and spend money on
cloud solutions with nothing but an eventual hung kernel. Although
this hadn't gone through linux-next it's also a stable fix, so we
might as well roll through the fixes now"
* tag 'sysctl-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux: (23 commits)
watchdog: move softlockup_panic back to early_param
proc: sysctl: prevent aliased sysctls from getting passed to init
intel drm: Remove now superfluous sentinel element from ctl_table array
Drivers: hv: Remove now superfluous sentinel element from ctl_table array
raid: Remove now superfluous sentinel element from ctl_table array
fw loader: Remove the now superfluous sentinel element from ctl_table array
sgi-xp: Remove the now superfluous sentinel element from ctl_table array
vrf: Remove the now superfluous sentinel element from ctl_table array
char-misc: Remove the now superfluous sentinel element from ctl_table array
infiniband: Remove the now superfluous sentinel element from ctl_table array
macintosh: Remove the now superfluous sentinel element from ctl_table array
parport: Remove the now superfluous sentinel element from ctl_table array
scsi: Remove now superfluous sentinel element from ctl_table array
tty: Remove now superfluous sentinel element from ctl_table array
xen: Remove now superfluous sentinel element from ctl_table array
hpet: Remove now superfluous sentinel element from ctl_table array
c-sky: Remove now superfluous sentinel element from ctl_talbe array
powerpc: Remove now superfluous sentinel element from ctl_table arrays
riscv: Remove now superfluous sentinel element from ctl_table array
x86/vdso: Remove now superfluous sentinel element from ctl_table array
...
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This commit comes at the tail end of a greater effort to remove the
empty elements at the end of the ctl_table arrays (sentinels) which
will reduce the overall build time size of the kernel and run time
memory bloat by ~64 bytes per sentinel (further information Link :
https://lore.kernel.org/all/ZO5Yx5JFogGi%2FcBo@bombadil.infradead.org/)
Removed the sentinel as well as the explicit size from ctl_isa_vars. The
size is redundant as the initialization sets it. Changed
insn_emulation->sysctl from a 2 element array of struct ctl_table to a
simple struct. This has no consequence for the sysctl registration as it
is forwarded as a pointer. Removed sentinel from sve_defatul_vl_table,
sme_default_vl_table, tagged_addr_sysctl_table and
armv8_pmu_sysctl_table.
This removal is safe because register_sysctl_sz and register_sysctl use
the array size in addition to checking for the sentinel.
Signed-off-by: Joel Granados <j.granados@samsung.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull ia64 removal and asm-generic updates from Arnd Bergmann:
- The ia64 architecture gets its well-earned retirement as planned,
now that there is one last (mostly) working release that will be
maintained as an LTS kernel.
- The architecture specific system call tables are updated for the
added map_shadow_stack() syscall and to remove references to the
long-gone sys_lookup_dcookie() syscall.
* tag 'asm-generic-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
hexagon: Remove unusable symbols from the ptrace.h uapi
asm-generic: Fix spelling of architecture
arch: Reserve map_shadow_stack() syscall number for all architectures
syscalls: Cleanup references to sys_lookup_dcookie()
Documentation: Drop or replace remaining mentions of IA64
lib/raid6: Drop IA64 support
Documentation: Drop IA64 from feature descriptions
kernel: Drop IA64 support from sig_fault handlers
arch: Remove Itanium (IA-64) architecture
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commit c35559f94ebc ("x86/shstk: Introduce map_shadow_stack syscall")
recently added support for map_shadow_stack() but it is limited to x86
only for now. There is a possibility that other architectures (namely,
arm64 and RISC-V), that are implementing equivalent support for shadow
stacks, might need to add support for it.
Independent of that, reserving arch-specific syscall numbers in the
syscall tables of all architectures is good practice and would help
avoid future conflicts. map_shadow_stack() is marked as a conditional
syscall in sys_ni.c. Adding it to the syscall tables of other
architectures is harmless and would return ENOSYS when exercised.
Note, map_shadow_stack() was assigned #453 during the merge process
since #452 was taken by fchmodat2().
For Powerpc, map it to sys_ni_syscall() as is the norm for Powerpc
syscall tables.
For Alpha, map_shadow_stack() takes up #563 as Alpha still diverges from
the common syscall numbering system in the other architectures.
Link: https://lore.kernel.org/lkml/20230515212255.GA562920@debug.ba.rivosinc.com/
Link: https://lore.kernel.org/lkml/b402b80b-a7c6-4ef0-b977-c0f5f582b78a@sirena.org.uk/
Signed-off-by: Sohil Mehta <sohil.mehta@intel.com>
Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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commit 'be65de6b03aa ("fs: Remove dcookies support")' removed the
syscall definition for lookup_dcookie. However, syscall tables still
point to the old sys_lookup_dcookie() definition. Update syscall tables
of all architectures to directly point to sys_ni_syscall() instead.
Signed-off-by: Sohil Mehta <sohil.mehta@intel.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Namhyung Kim <namhyung@kernel.org> # for perf
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Pull ARM SoC code updates from Arnd Bergmann:
"The AMD Pensando DPU platform gets added to arm64, and some minor
updates make it into Renesas' 32-bit platforms"
* tag 'soc-arm-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
arm: debug: reuse the config DEBUG_OMAP2UART{1,2} for OMAP{3,4,5}
arm64: Add config for AMD Pensando SoC platforms
MAINTAINERS: Add entry for AMD PENSANDO
ARM: shmobile: sh73a0: Reserve boot area when SMP is enabled
ARM: shmobile: r8a7779: Reserve boot area when SMP is enabled
ARM: shmobile: rcar-gen2: Reserve boot area when SMP is enabled
ARM: shmobile: rcar-gen2: Remove unneeded once handling
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Add ARCH_PENSANDO configuration option for AMD Pensando SoC
based platforms.
Signed-off-by: Brad Larson <blarson@amd.com>
Link: https://lore.kernel.org/r/20230925195610.47971-4-blarson@amd.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM defconfig updates from Arnd Bergmann:
"These are the usual trivial changes to enable a couple of newly added
device drivers and remove lines for Kconfig options that are no longer
needed"
* tag 'soc-defconfig-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (24 commits)
arm64: defconfig: enable DisplayPort altmode support
arm64: defconfig: enable CONFIG_TYPEC_QCOM_PMIC
arm64: defconfig: add various drivers for Amlogic based boards
ARM: config: aspeed: Remove FIRMWARE_MEMMAP
ARM: config: aspeed_g5: Enable SSIF BMC driver
ARM: config: aspeed: Add Ampere SMPro drivers
ARM: config: aspeed: Add new FSI drivers
arm64: defconfig: Enable TPS6593 PMIC for SK-AM62A
ARM: exynos_defconfig: add driver for ISL29018
ARM: multi_v7_defconfig: add drivers for S5C73M3 & S5K6A3 camera sensors
arm64: defconfig: Enable RZ/G3S (R9A08G045) SoC
ARM: multi_v7_defconfig: add tm2-touchkey driver
ARM: exynos_defconfig: replace SATA_AHCI_PLATFORM with AHCI_DWC driver
ARM: multi_v7_defconfig: add AHCI_DWC driver
ARM: multi_v7_defconfig: make Exynos related PHYs modules
ARM: s5pv210_defconfig: enable IIO required by MAX17040
ARM: shmobile: defconfig: Refresh for v6.6-rc3
ARM: defconfig: cleanup orphaned CONFIGs
arm64: defconfig: Enable Samsung DSIM driver
arm64: defconfig: Enable CONFIG_USB_MASS_STORAGE
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https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux into soc/defconfig
TI K3 defconfig updates
Enable TPS6593 PMIC driver as module to support PMIC on AM62A SK board
* tag 'ti-k3-config-for-v6.7' of https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux:
arm64: defconfig: Enable TPS6593 PMIC for SK-AM62A
Link: https://lore.kernel.org/r/9c820e96-21e4-451e-b0ab-a6400d68bdf7@ti.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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SK-AM62A-LP uses TPS6593x PMIC (interfaced over I2C) to power the SoC
and various other peripherals on the board [1].
Specifically, the audio codec (TLV320AIC3106) on the board relies on the
PMIC for the DVDD (1.8V) supply.
[1]: https://www.ti.com/lit/zip/sprr459
Reviewed-by: Devarsh Thakkar <devarsht@ti.com>
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Link: https://lore.kernel.org/r/20231003-mcasp_am62a-v3-6-2b631ff319ca@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/defconfig
Few more ARM64 defconfig updates for v6.7
This enables the Qualcomm PMIC-based USB Type-C port manager, found in
e.g. SM8250, and hence RB5, as well as the Type-C DisplayPort altmode
support to get display working on the same.
* tag 'qcom-arm64-defconfig-for-6.7-2' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
arm64: defconfig: enable DisplayPort altmode support
arm64: defconfig: enable CONFIG_TYPEC_QCOM_PMIC
Link: https://lore.kernel.org/r/20231025191841.1015192-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Enable the DisplayPort altmode, it is required to get DisplayPort output
to work on devices like Qualcomm Robotics RB5 platform.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewd-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20231011103245.96638-2-dmitry.baryshkov@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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Enable Qualcomm PMIC TCPM driver, it is used to handle Type-C ports on
devices like Qualcomm Robotics RB5 platform.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20231011103245.96638-1-dmitry.baryshkov@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux into soc/defconfig
Amlogic defconfig changes for v6.7:
- add various drivers for Amlogic based boards
- KEYBOARD_GPIO_POLLED=m used to support buttons on pre-G12A boards
- KHADAS_MCU_FAN_THERMAL=m & MFD_KHADAS_MCU=m to control FAN over the MCU on Khadas VIM boards
- MEDIA_CEC_SUPPORT=y & CEC_MESON_G12A_AO=m to enable the CEC bus
- RTC_DRV_PCF8563=m to enable support for RTC on most SBC boards
- VIDEO_MESON_VDEC=m to enable HW Video Decoder
- MESON_DDR_PMU=m to enable DDR PMU perf driver on G12A & SM1 SoCs
* tag 'amlogic-defconfig-for-v6.7' of https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux:
arm64: defconfig: add various drivers for Amlogic based boards
Link: https://lore.kernel.org/r/2e08bd06-09e0-4352-8207-bc3b5d26fba4@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Enable drivers for the hardware blocks present on the Amlogic Meson SoC
based boards: Khadas VIM3 and Hardkernel Odroid N2 to increase testing
coverage.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20231012103600.3381340-1-m.szyprowski@samsung.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux into soc/defconfig
Qualcomm ARM64 defconfig updates for v6.7
This enables the NB7VPQ904M SuperSpeed redriver driver, used in SM8550,
the LPASS pinctrl driver for SM6115 and SM8350 and the M31 USB phy
driver found in IPQ5332.
* tag 'qcom-arm64-defconfig-for-6.7' of https://git.kernel.org/pub/scm/linux/kernel/git/qcom/linux:
arm64: defconfig: Enable M31 USB phy driver
arm64: defconfig: enable Qualcomm SM6115 LPASS pinctrl
arm64: defconfig: enable Qualcomm SM8350 LPASS pinctrl
arm64: defconfig: enable NB7VPQ904M driver as module
Link: https://lore.kernel.org/r/20231015201812.855218-1-andersson@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Enable M31 USB phy driver present in IPQ5332.
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Varadarajan Narayanan <quic_varada@quicinc.com>
Link: https://lore.kernel.org/r/7a5acabcaee60b6a00259bd88c06ffca06999f07.1693468292.git.quic_varada@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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Enable the Qualcomm SM6115 LPASS TLMM pin controller driver for
providing GPIOs/pins for audio block on SM6115 based boards (e.g.
QTI RB2).
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230722-topic-6115_lpasstlmm-v2-3-d4883831a858@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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Enable the Qualcomm SM8350 LPASS TLMM pin controller driver for
providing GPIOs/pins for audio block on SM8350 based boards (e.g.
HDK8350).
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20230719192058.433517-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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Enable the NB7VPQ904M SuperSpeed redriver/retimer as module as
it is now used on the SM8550 QRD platform.
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20230914-topic-sm8x50-upstream-nb7-defconfig-v1-1-4f6fd9f3fded@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into soc/defconfig
i.MX defconfig changes for 6.7:
- Enable Samsung DSIM DRM bridge driver and USB mass storage support
in arm64 defconfig
* tag 'imx-defconfig-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
arm64: defconfig: Enable Samsung DSIM driver
arm64: defconfig: Enable CONFIG_USB_MASS_STORAGE
Link: https://lore.kernel.org/r/20231015132300.2268016-4-shawnguo@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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This driver, together with GPIO delay, is required for TQMa8MxML based
boards to use LVDS output.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Enable CONFIG_USB_MASS_STORAGE so that it is possible to
mount the eMMC content in the PC by doing:
modprobe g_mass_storage file=/dev/mmcblk1 removable=1
Signed-off-by: Fabio Estevam <festevam@denx.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Enable the config flag for the Renesas RZ/G3S (R9A08G045) SoC.
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230929053915.1530607-29-claudiu.beznea@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
"The highlights for the driver support this time are
- Qualcomm platforms gain support for the Qualcomm Secure Execution
Environment firmware interface to access EFI variables on certain
devices, and new features for multiple platform and firmware
drivers.
- Arm FF-A firmware support gains support for v1.1 specification
features, in particular notification and memory transaction
descriptor changes.
- SCMI firmware support now support v3.2 features for clock and DVFS
configuration and a new transport for Qualcomm platforms.
- Minor cleanups and bugfixes are added to pretty much all the active
platforms: qualcomm, broadcom, dove, ti-k3, rockchip, sifive,
amlogic, atmel, tegra, aspeed, vexpress, mediatek, samsung and
more.
In particular, this contains portions of the treewide conversion to
use __counted_by annotations and the device_get_match_data helper"
* tag 'soc-drivers-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (156 commits)
soc: qcom: pmic_glink_altmode: Print return value on error
firmware: qcom: scm: remove unneeded 'extern' specifiers
firmware: qcom: scm: add a missing forward declaration for struct device
firmware: qcom: move Qualcomm code into its own directory
soc: samsung: exynos-chipid: Convert to platform remove callback returning void
soc: qcom: apr: Add __counted_by for struct apr_rx_buf and use struct_size()
soc: qcom: pmic_glink: fix connector type to be DisplayPort
soc: ti: k3-socinfo: Avoid overriding return value
soc: ti: k3-socinfo: Fix typo in bitfield documentation
soc: ti: knav_qmss_queue: Use device_get_match_data()
firmware: ti_sci: Use device_get_match_data()
firmware: qcom: qseecom: add missing include guards
soc/pxa: ssp: Convert to platform remove callback returning void
soc/mediatek: mtk-mmsys: Convert to platform remove callback returning void
soc/mediatek: mtk-devapc: Convert to platform remove callback returning void
soc/loongson: loongson2_guts: Convert to platform remove callback returning void
soc/litex: litex_soc_ctrl: Convert to platform remove callback returning void
soc/ixp4xx: ixp4xx-qmgr: Convert to platform remove callback returning void
soc/ixp4xx: ixp4xx-npe: Convert to platform remove callback returning void
soc/hisilicon: kunpeng_hccs: Convert to platform remove callback returning void
...
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git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers
Arm FF-A updates for v6.7
The main addition is the initial support for the notifications and
memory transaction descriptor changes added in FF-A v1.1 specification.
The notification mechanism enables a requester/sender endpoint to notify
a service provider/receiver endpoint about an event with non-blocking
semantics. A notification is akin to the doorbell between two endpoints
in a communication protocol that is based upon the doorbell/mailbox
mechanism.
The framework is responsible for the delivery of the notification from
the ender to the receiver without blocking the sender. The receiver
endpoint relies on the OS scheduler for allocation of CPU cycles to
handle a notification.
OS is referred as the receiver’s scheduler in the context of notifications.
The framework is responsible for informing the receiver’s scheduler that
the receiver must be run since it has a pending notification.
The series also includes support for the new format of memory transaction
descriptors introduced in v1.1 specification.
Apart from the main additions, it includes minor fixes to re-enable FF-A
drivers usage of 32bit mode of messaging and kernel warning due to the
missing assignment of IDR allocation ID to the FFA device. It also adds
emitting 'modalias' to the base attribute of FF-A devices.
* tag 'ffa-updates-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_ffa: Upgrade the driver version to v1.1
firmware: arm_ffa: Update memory descriptor to support v1.1 format
firmware: arm_ffa: Switch to using ffa_mem_desc_offset() accessor
KVM: arm64: FFA: Remove access of endpoint memory access descriptor array
firmware: arm_ffa: Simplify the computation of transmit and fragment length
firmware: arm_ffa: Add notification handling mechanism
firmware: arm_ffa: Add interface to send a notification to a given partition
firmware: arm_ffa: Add interfaces to request notification callbacks
firmware: arm_ffa: Add schedule receiver callback mechanism
firmware: arm_ffa: Initial support for scheduler receiver interrupt
firmware: arm_ffa: Implement the NOTIFICATION_INFO_GET interface
firmware: arm_ffa: Implement the FFA_NOTIFICATION_GET interface
firmware: arm_ffa: Implement the FFA_NOTIFICATION_SET interface
firmware: arm_ffa: Implement the FFA_RUN interface
firmware: arm_ffa: Implement the notification bind and unbind interface
firmware: arm_ffa: Implement notification bitmap create and destroy interfaces
firmware: arm_ffa: Update the FF-A command list with v1.1 additions
firmware: arm_ffa: Emit modalias for FF-A devices
firmware: arm_ffa: Allow the FF-A drivers to use 32bit mode of messaging
firmware: arm_ffa: Assign the missing IDR allocation ID to the FFA device
Link: https://lore.kernel.org/r/20231010124354.1620064-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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FF-A v1.1 removes the fixed location of endpoint memory access descriptor
array within the memory transaction descriptor structure. In preparation
to remove the ep_mem_access member from the ffa_mem_region structure,
provide the accessor to fetch the offset and use the same in FF-A proxy
implementation.
The accessor take the FF-A version as the argument from which the memory
access descriptor format can be determined. v1.0 uses the old format while
v1.1 onwards use the new format specified in the v1.1 specification.
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Will Deacon <will@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231005-ffa_v1-1_notif-v4-14-cddd3237809c@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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Pull SoC DT updates from Arnd Bergmann:
"There are a couple new SoCs that are supported for the first time:
- AMD Pensando Elba is a data processing unit based on Cortex-A72 CPU
cores
- Sophgo makes RISC-V based chips, and we now support the CV1800B
chip used in the milkv-duo board and the massive sg2042 chip in the
milkv-pioneer, a 64-core developer workstation.
- Qualcomm Snapdragon 720G (sm7125) is a close relative of Snapdragon
7c and gets added with some Xiaomi phones
- Renesas gains support for the R8A779F4 (R-Car S4-8) automotive SoC
and the RZ/G3S (R9A08G045) embedded SoC.
There are also a bunch of newly supported machines that use already
supported chips. On the 32-bit side, we have:
- USRobotics USR8200 is a NAS/Firewall/router based on the ancient
Intel IXP4xx platform
- A couple of machines based on the NXP i.MX5 and i.MX6 platforms
- One machine each for Allwinner V3s, Aspeed AST2600, Microchip
sama5d29 and ST STM32mp157
The other ones all use arm64 cores on chips from allwinner, amlogic,
freescale, mediatek, qualcomm and rockchip"
* tag 'soc-dt-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (641 commits)
ARM: dts: BCM5301X: Set switch ports for Linksys EA9200
ARM: dts: BCM5301X: Set fixed-link for extra Netgear R8000 CPU ports
ARM: dts: BCM5301X: Explicitly disable unused switch CPU ports
ARM: dts: BCM5301X: Relicense Vivek's code to the GPL 2.0+ / MIT
ARM: dts: BCM5301X: Relicense Felix's code to the GPL 2.0+ / MIT
ARM: dts: BCM5301X: Set MAC address for Asus RT-AC87U
arm64: dts: socionext: add missing cache properties
riscv: dts: thead: convert isa detection to new properties
arm64: dts: Update cache properties for socionext
arm64: dts: ti: k3-am654-idk: Add ICSSG Ethernet ports
arm64: dts: ti: k3-am654-icssg2: add ICSSG2 Ethernet support
arm64: dts: ti: k3-am65-main: Add ICSSG IEP nodes
arm64: dts: ti: k3-am62p5-sk: Updates for SK EVM
arm64: dts: ti: k3-am62p: Add nodes for more IPs
arm64: dts: rockchip: Add Turing RK1 SoM support
dt-bindings: arm: rockchip: Add Turing RK1
dt-bindings: vendor-prefixes: add turing
arm64: dts: rockchip: Add DFI to rk3588s
arm64: dts: rockchip: Add DFI to rk356x
arm64: dts: rockchip: Always enable DFI on rk3399
...
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git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into soc/dt
One new board the Turing RK1 system on module.
Support for DFI (DDR performance monitoring) for rk3588, rk3568 and an
enable-fix for rk3399 as well as some small fixups for the RGB30 handheld
(non-existent uart and better vpll frequency).
* tag 'v6.7-rockchip-dts64-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
arm64: dts: rockchip: Add Turing RK1 SoM support
dt-bindings: arm: rockchip: Add Turing RK1
dt-bindings: vendor-prefixes: add turing
arm64: dts: rockchip: Add DFI to rk3588s
arm64: dts: rockchip: Add DFI to rk356x
arm64: dts: rockchip: Always enable DFI on rk3399
arm64: dts: rockchip: Remove UART2 from RGB30
arm64: dts: rockchip: Update VPLL Frequency for RGB30
Link: https://lore.kernel.org/r/2777623.BEx9A2HvPv@phil
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The Turing RK1 is an upcoming RK3588-based SoM from Turing Machines,
designed on the Jetson SO-DIMM form factor and meant to be compatible
with most Jetson carrier boards (but especially the Turing Pi 2 cluster
board from the same vendor). It has the typical I/O you'd expect from
a Jetson board, including:
- Two UARTs (UART9 for console, UART2 is auxiliary)
- PCI Express (2.0 x1 + 3.0 x4)
- Gigabit Ethernet
- On-board eMMC
- PWM fan w/ tach
- USB-OTG [1]
- HDMI and MIPI DSI [1]
- Miscellaneous external GPIO, I²C, SPI lines [1]
Beyond that, it is pretty similar to the RK3588 EVB (in terms of PMICs,
RTC, etc).
While this is absolutely a SoM, it is a little bit special in that it's
marketed directly to users as a compute node, while most SoMs are
intended to be a part/module incorporated into a larger system. Because
of this, a majority of the users will be treating the RK1 less like a
SoM and more like a miniature "blade server."
This patch introduces a dtsi to enable most[1] of the SoM I/O, as well
as a dts catered more directly to the "compute node" use case.
[1] These peripherals are not addressed with this patch.
Signed-off-by: Sam Edwards <CFSworks@gmail.com>
Link: https://lore.kernel.org/r/20231011225823.2542262-4-CFSworks@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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The DFI unit can be used to measure DRAM utilization using perf. Add the
node to the device tree. The DFI needs a rockchip,pmu phandle to the pmu
containing registers for SDRAM configuration details. This is added in
this patch as well.
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20231018061714.3553817-27-s.hauer@pengutronix.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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The DFI unit can be used to measure DRAM utilization using perf. Add the
node to the device tree.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20231018061714.3553817-26-s.hauer@pengutronix.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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the DFI unit can provide useful data for measuring DDR utilization
and works without any configuration from the board, so enable it in the
dtsi file directly.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://lore.kernel.org/r/20231018061714.3553817-25-s.hauer@pengutronix.de
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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The Powkiddy RGB30 has no onboard UART header, so remove the reference
to it in the device tree. This was left on by mistake in the initial
commit.
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20231018153357.343142-4-macroalpha82@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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Set the VPLL frequency for the RGB30 to 292.5MHz to support running
the 720x720 display panel at 59.97hz. Without this change, the panel
runs at 59.08hz.
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Link: https://lore.kernel.org/r/20231018153357.343142-3-macroalpha82@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux into soc/dt
TI K3 device-tree updates for v6.7 - part 2
Second round of few DT updates for K3 platforms. These have been in
linux-next for a few days without issues. Most of the additions is for
newer AM62P SoC dtsi bringing support on par with rest of AM62x family.
New features:
AM62P SoCs:
Support for wide range of peripherals such as eMMC/SD,
CPSW Ethernet, OSPI, etc similar to AM62
J721s2/J784s4/AM69 SoCs:
Display support via DP and HDMI interfaces and associated SerDes support
AM654 EVM/IDK:
ICSSG/PRU based industrial Ethernet support
* tag 'ti-k3-dt-for-v6.7-part2' of https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux:
arm64: dts: ti: k3-am654-idk: Add ICSSG Ethernet ports
arm64: dts: ti: k3-am654-icssg2: add ICSSG2 Ethernet support
arm64: dts: ti: k3-am65-main: Add ICSSG IEP nodes
arm64: dts: ti: k3-am62p5-sk: Updates for SK EVM
arm64: dts: ti: k3-am62p: Add nodes for more IPs
arm64: dts: ti: k3-am69-sk: Add DP and HDMI support
arm64: dts: ti: k3-j784s4-evm: Enable DisplayPort-0
arm64: dts: ti: k3-j784s4-main: Add DSS and DP-bridge node
arm64: dts: ti: k3-j784s4-main: Add WIZ and SERDES PHY nodes
arm64: dts: ti: k3-j784s4-main: Add system controller and SERDES lane mux
Link: https://lore.kernel.org/r/35a3c4c9-5c1b-4891-9ea2-e3f648a9afe0@ti.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The IDK application board has 4 Gigabit Ethernet ports.
This patch adds support for the 4 Gigabit Ethernet ports
which are provided by ICSSG0 and ICSSG1.
The IEP0 SYNC_OUT0 pins are used for PPS out on the IDK card.
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Link: https://lore.kernel.org/r/20231020051937.3709871-4-danishanwar@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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ICSSG2 provides dual Gigabit Ethernet support.
Add ICSSG2 ethernet node to an overlay k3-am654-icssg2.dtso
Reviewed-by: Andrew Davis <afd@ti.com>
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Link: https://lore.kernel.org/r/20231020051937.3709871-3-danishanwar@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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The ICSSG IP on AM65x SoCs have two Industrial Ethernet Peripherals (IEPs)
to manage/generate Industrial Ethernet functions such as time stamping.
Each IEP sub-module is sourced from an internal clock mux that can be
sourced from either of the IP instance's ICSSG_IEP_GCLK or ICSSG_ICLK.
Add the IEP nodes for all the ICSSG instances.
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Link: https://lore.kernel.org/r/20231020051937.3709871-2-danishanwar@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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Update the am62p5-sk board file to enable the new IPs introduced
in the SoC dtb.
Signed-off-by: Bryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20231019223055.1574125-6-bb@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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The am62px shares many of the same IP as the existing am62x family
of SoCs, Introduce more nodes for hardware available on the am62p5.
Signed-off-by: Bryan Brattlof <bb@ti.com>
Link: https://lore.kernel.org/r/20231019223055.1574125-5-bb@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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AM69 starter kit features an HDMI port and an eDP port.
Add assigned clocks for DSS, DT node for DisplayPort PHY,
pinmux for HDMI hotplug and power down, mcu_i2c1 and dss_vout
for HDMI.
Also enable Serdes4 settings for DP display.
Add the endpoint nodes to describe connection from:
DSS => MHDP => DisplayPort connector
DSS => TI TFP410 DPI-to-DVI Bridge => HDMI connector
Signed-off-by: Dasnavis Sabiya <sabiya.d@ti.com>
[j-choudhary@ti.com: Fix dvi-bridge, dss, mhdp and serdes-refclk]
Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
Reviewed-by: Aradhya Bhatia <a-bhatia1@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20231019054022.175163-6-j-choudhary@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
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