Commit Graph

147 Commits

Author SHA1 Message Date
Linus Torvalds
4c10d22211 soc: defconfig updates for 6.16
As usual, more drivers get enabled in the defconfigs, to support newly
 added hardware drivers.
 
 There is one change for Tegra that modifies the Kconfig file at the same
 time, and the NXP arm32 defconfigs get a refresh.
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Merge tag 'soc-defconfig-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC defconfig updates from Arnd Bergmann:
 "As usual, more drivers get enabled in the defconfigs, to support newly
  added hardware drivers.

  There is one change for Tegra that modifies the Kconfig file at the
  same time, and the NXP arm32 defconfigs get a refresh"

* tag 'soc-defconfig-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (25 commits)
  arm: multi_v7_defconfig: Enable TPS65219 regulator
  arm: omap2plus_defconfig: Enable TPS65219 regulator
  arm64: defconfig: Enable Tegra241 and Tegra264
  riscv: defconfig: spacemit: enable sdhci driver for K1 SoC
  riscv: defconfig: Enable PWM support for SpacemiT K1 SoC
  riscv: defconfig: Remove CONFIG_SND_SOC_STARFIVE=m
  arm64: defconfig: Enable Tegra HSP and BPMP
  ARM: imx_v6_v7_defconfig: select CONFIG_USB_HSIC_USB3503
  ARM: imx_v6_v7_defconfig: select CONFIG_INPUT_PWM_BEEPER
  ARM: imx_v6_v7_defconfig: cleanup with savedefconfig
  ARM: mxs_defconfig: select new drivers used by imx28-amarula-rmm
  ARM: mxs_defconfig: Cleanup mxs_defconfig
  arm64: defconfig: enable further Rockchip platform drivers
  arm64: defconfig: enable Samsung PMIC over ACPM
  arm64: defconfig: enable Maxim max77759 driver
  ARM: configs: sama5_defconfig: Select CONFIG_WILC1000_SDIO
  ARM: shmobile: defconfig: Refresh for v6.16-rc2
  arm64: defconfig: Enable RZ/V2H(P) USB2 PHY controller reset driver
  arm64: defconfig: add S32G RTC module support
  arm64: defconfig: Drop unneeded unselectable sound drivers
  ...
2025-07-29 11:27:41 -07:00
Ben Zong-You Xie
ad087c91eb
riscv: defconfig: enable Andes SoC
Enable Andes SoC config in defconfig to allow the default
upstream kernel to boot on Voyager board.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Ben Zong-You Xie <ben717@andestech.com>
Link: https://lore.kernel.org/r/20250711133025.2192404-9-ben717@andestech.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-07-21 16:51:52 +02:00
Yixun Lan
bd4d5d3faa riscv: defconfig: spacemit: enable sdhci driver for K1 SoC
Enable sdhci driver support for SpacemiT K1 SoC, so eMMC storage
will be probed and activated, Tested on the Banana Pi BPI-F3 board.

Signed-off-by: Yixun Lan <dlan@gentoo.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2025-07-09 17:13:24 +01:00
Guodong Xu
9df56b46cd riscv: defconfig: Enable PWM support for SpacemiT K1 SoC
Enable CONFIG_PWM and CONFIG_PWM_PXA in the defconfig
to support the PWM controller used on the SpacemiT K1 SoC.

Signed-off-by: Guodong Xu <guodong@riscstar.com>
Reviewed-by: Yixun Lan <dlan@gentoo.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2025-07-08 17:34:01 +01:00
Geert Uytterhoeven
493e9b0852 riscv: defconfig: Remove CONFIG_SND_SOC_STARFIVE=m
The SND_SOC_STARFIVE Kconfig symbol was removed, but it is still enabled
in the RISC-V defconfig.  Just remove it, as it is no longer needed.

Fixes: acc317e525 ("ASoC: starfive: Standardize ASoC menu")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2025-07-08 17:25:55 +01:00
Linus Torvalds
119b1e61a7 RISC-V Patches for the 6.16 Merge Window, Part 1
* Support for the FWFT SBI extension, which is part of SBI 3.0 and a
   dependency for many new SBI and ISA extensions.
 * Support for getrandom() in the VDSO.
 * Support for mseal.
 * Optimized routines for raid6 syndrome and recovery calculations.
 * kexec_file() supports loading Image-formatted kernel binaries.
 * Improvements to the instruction patching framework to allow for atomic
   instruction patching, along with rules as to how systems need to
   behave in order to function correctly.
 * Support for a handful of new ISA extensions: Svinval, Zicbop, Zabha,
   some SiFive vendor extensions.
 * Various fixes and cleanups, including: misaligned access handling, perf
   symbol mangling, module loading, PUD THPs, and improved uaccess
   routines.
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Merge tag 'riscv-for-linus-6.16-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Palmer Dabbelt:

 - Support for the FWFT SBI extension, which is part of SBI 3.0 and a
   dependency for many new SBI and ISA extensions

 - Support for getrandom() in the VDSO

 - Support for mseal

 - Optimized routines for raid6 syndrome and recovery calculations

 - kexec_file() supports loading Image-formatted kernel binaries

 - Improvements to the instruction patching framework to allow for
   atomic instruction patching, along with rules as to how systems need
   to behave in order to function correctly

 - Support for a handful of new ISA extensions: Svinval, Zicbop, Zabha,
   some SiFive vendor extensions

 - Various fixes and cleanups, including: misaligned access handling,
   perf symbol mangling, module loading, PUD THPs, and improved uaccess
   routines

* tag 'riscv-for-linus-6.16-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (69 commits)
  riscv: uaccess: Only restore the CSR_STATUS SUM bit
  RISC-V: vDSO: Wire up getrandom() vDSO implementation
  riscv: enable mseal sysmap for RV64
  raid6: Add RISC-V SIMD syndrome and recovery calculations
  riscv: mm: Add support for Svinval extension
  RISC-V: Documentation: Add enough title underlines to CMODX
  riscv: Improve Kconfig help for RISCV_ISA_V_PREEMPTIVE
  MAINTAINERS: Update Atish's email address
  riscv: uaccess: do not do misaligned accesses in get/put_user()
  riscv: process: use unsigned int instead of unsigned long for put_user()
  riscv: make unsafe user copy routines use existing assembly routines
  riscv: hwprobe: export Zabha extension
  riscv: Make regs_irqs_disabled() more clear
  perf symbols: Ignore mapping symbols on riscv
  RISC-V: Kconfig: Fix help text of CMDLINE_EXTEND
  riscv: module: Optimize PLT/GOT entry counting
  riscv: Add support for PUD THP
  riscv: xchg: Prefetch the destination word for sc.w
  riscv: Add ARCH_HAS_PREFETCH[W] support with Zicbop
  riscv: Add support for Zicbop
  ...
2025-06-06 18:05:18 -07:00
Haylen Chu
60c6d37972 riscv: defconfig: spacemit: enable clock controller driver for SpacemiT K1
Clock controller unit, or CCU, generates various clocks frequency for
peripherals integrated in SpacemiT K1 SoC and is essential for normal
operation. Let's enable it as built-in driver in defconfig.

Signed-off-by: Haylen Chu <heylenay@4d2.org>
Reviewed-by: Alex Elder <elder@riscstar.com>
Reviewed-by: Yixun Lan <dlan@gentoo.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2025-04-26 00:41:03 +01:00
Yixun Lan
8ec8b25dde riscv: defconfig: spacemit: enable gpio support for K1 SoC
Enable GPIO support, in order to activate follow-up GPIO LED,
and ethernet reset pin.

Signed-off-by: Yixun Lan <dlan@gentoo.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2025-04-25 15:35:30 +01:00
Joel Stanley
bafa451a96
riscv: defconfig: Remove EXPERT
The setting of EXPERT is a leftover from when the riscv defconfig was
first added. As mentioned in the EXPERT Kconfig help text it is not
intended to be set in the usual case.

Upon removal a bunch of intrusive debug-related kernel options are no
longer set, which is good. A few may want to come back in the future but
let those be advocated for on a case by case basis.

NAMESPACES, SYSFS_SYSCALL and MEDIA_SUPPORT_FILTER default on and thus
fall out of the defconfig.

Set VIDEO_CADENCE_CSI2RX=y to ensure VIDEO_CADENCE_CSI2RX stays enabled.

Set DEBUG_KERNEL=y in line with other arch defconfigs. This turns on
tracing.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20250415122832.982610-1-joel@jms.id.au
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2025-04-16 08:22:27 -07:00
Masahiro Yamada
82e81b8950
riscv: migrate to the generic rule for built-in DTB
Commit 654102df2a ("kbuild: add generic support for built-in boot
DTBs") introduced generic support for built-in DTBs.

Select GENERIC_BUILTIN_DTB when built-in DTB support is enabled.

To keep consistency across architectures, this commit also renames
CONFIG_BUILTIN_DTB_SOURCE to CONFIG_BUILTIN_DTB_NAME.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20241222000836.2578171-1-masahiroy@kernel.org
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
2025-03-18 13:30:13 +00:00
Geert Uytterhoeven
c2db83fe10
riscv: defconfig: Disable Renesas SoC support
Follow-up to commit e36ddf3226 ("riscv: defconfig: Disable RZ/Five
peripheral support") in v6.12-rc1:

  - Disable ARCH_RENESAS, too, as currently RZ/Five is the sole Renesas
    RISC-V SoC,
  - Drop no longer needed explicit disable of USB_XHCI_RCAR, which
    depends on ARCH_RENESAS.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/e8a2fb273c8c68bd6d526b924b4212f397195b28.1738764211.git.geert+renesas@glider.be
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
2025-03-18 13:04:25 +00:00
Linus Torvalds
1b5f3c51fb RISC-V Patches for the 6.14 Merge Window, Part 1
* The PH1520 pinctrl and dwmac drivers are enabeled in defconfig.
 * A redundant AQRL barrier has been removed from the futex cmpxchg
   implementation.
 * Support for the T-Head vector extensions, which includes exposing
   these extensions to userspace on systems that implement them.
 * Some more page table information is now printed on die() and systems
   that cause PA overflows.
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Merge tag 'riscv-for-linus-6.14-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Palmer Dabbelt:

 - The PH1520 pinctrl and dwmac drivers are enabeled in defconfig

 - A redundant AQRL barrier has been removed from the futex cmpxchg
   implementation

 - Support for the T-Head vector extensions, which includes exposing
   these extensions to userspace on systems that implement them

 - Some more page table information is now printed on die() and systems
   that cause PA overflows

* tag 'riscv-for-linus-6.14-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: add a warning when physical memory address overflows
  riscv/mm/fault: add show_pte() before die()
  riscv: Add ghostwrite vulnerability
  selftests: riscv: Support xtheadvector in vector tests
  selftests: riscv: Fix vector tests
  riscv: hwprobe: Document thead vendor extensions and xtheadvector extension
  riscv: hwprobe: Add thead vendor extension probing
  riscv: vector: Support xtheadvector save/restore
  riscv: Add xtheadvector instruction definitions
  riscv: csr: Add CSR encodings for CSR_VXRM/CSR_VXSAT
  RISC-V: define the elements of the VCSR vector CSR
  riscv: vector: Use vlenb from DT for thead
  riscv: Add thead and xtheadvector as a vendor extension
  riscv: dts: allwinner: Add xtheadvector to the D1/D1s devicetree
  dt-bindings: cpus: add a thead vlen register length property
  dt-bindings: riscv: Add xtheadvector ISA extension description
  RISC-V: Mark riscv_v_init() as __init
  riscv: defconfig: drop RT_GROUP_SCHED=y
  riscv/futex: Optimize atomic cmpxchg
  riscv: defconfig: enable pinctrl and dwmac support for TH1520
2025-01-31 15:13:25 -08:00
Linus Torvalds
7108814670 soc: defconfig updates for 6.14
As usual, a number of new drivers get added to the defconfig to
 support additional hardware. The stm32 defconfig also turns off
 a few options to optimize for size.
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Merge tag 'soc-defconfig-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC defconfig updates from Arnd Bergmann:
 "As usual, a number of new drivers get added to the defconfig to
  support additional hardware.

  The stm32 defconfig also turns off a few options to optimize for size"

* tag 'soc-defconfig-6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (27 commits)
  dt-bindings: soc: samsung: exynos-pmu: Add exynos990-pmu compatible
  arm64: defconfig: enable Maxim TCPCI driver
  ARM: configs: stm32: Remove useless flags in STM32 defconfig
  ARM: configs: stm32: Remove CRYPTO in STM32 defconfig
  ARM: configs: stm32: Clean STM32 defconfig
  ARM: configs: stm32: Remove FLASH_MEM_BASE and FLASH_SIZE in STM32 defconfig
  arm64: defconfig: Enable pinctrl-based I2C mux
  arm64: defconfig: Enable Rockchip extensions for Synopsys DW HDMI QP
  arm64: defconfig: Enable RFKILL GPIO
  arm64: defconfig: Enable TI K3 M4 remoteproc driver
  arm64: defconfig: Enable Qualcomm IPQ CMN PLL clock controller
  arm64: defconfig: Enable basic Qualcomm SM8750 SoC drivers
  arm64: defconfig: remove obsolete CONFIG_SM_DISPCC_8650
  arm64: defconfig: enable clock controller, interconnect and pinctrl for QCS8300
  arm64: defconfig: Enable sa8775p clock controllers
  arm64: defconfig: Enable MediaTek DWMAC
  arm64: defconfig: Enable sound for MT8188
  arm64: defconfig: Enable MediaTek STAR Ethernet MAC
  riscv: defconfig: enable pinctrl and dwmac support for TH1520
  arm64: defconfig: Enable Amazon Elastic Network Adaptor
  ...
2025-01-24 15:03:53 -08:00
Yangyu Chen
21bef40ad1 riscv: defconfig: enable SpacemiT SoC
Enable SpacemiT SoC config in defconfig to allow the default upstream
kernel booting on Banana Pi BPI-F3 board.

Signed-off-by: Yangyu Chen <cyy@cyyself.name>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Tested-by: Jesse Taube <jesse@rivosinc.com>
Signed-off-by: Yixun Lan <dlan@gentoo.org>
2025-01-17 07:53:52 +08:00
Celeste Liu
26f2d6de41
riscv: defconfig: drop RT_GROUP_SCHED=y
Commit ba6cfef057 ("riscv: enable Docker requirements in defconfig")
introduced it because of Docker, but Docker has removed this requirement
since [1] (2023-04-19).

For cgroup v1, if turned on, and there's any cgroup in the "cpu" hierarchy it
needs an RT budget assigned, otherwise the processes in it will not be able to
get RT at all. The problem with RT group scheduling is that it requires the
budget assigned but there's no way we could assign a default budget, since the
values to assign are both upper and lower time limits, are absolute, and need to
be sum up to < 1 for each individal cgroup. That means we cannot really come up
with values that would work by default in the general case.[2]

For cgroup v2, it's almost unusable as well. If it turned on, the cpu controller
can only be enabled when all RT processes are in the root cgroup. But it will
lose the benefits of cgroup v2 if all RT process were placed in the same cgroup.

Red Hat, Gentoo, Arch Linux and Debian all disable it. systemd also doesn't
support it.[3]

[1]: 005150ed69
[2]: https://bugzilla.redhat.com/show_bug.cgi?id=1229700
[3]: https://github.com/systemd/systemd/issues/13781#issuecomment-549164383

Acked-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Signed-off-by: Celeste Liu <CoelacanthusHex@gmail.com>
Acked-by: Charlie Jenkins <charlie@rivosinc.com>
Link: https://lore.kernel.org/r/20240910-fix-riscv-rt_group_sched-v3-1-486e75e5ae6d@gmail.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-12-27 08:45:40 -08:00
Drew Fustini
e7177ecdd2 riscv: defconfig: enable pinctrl and dwmac support for TH1520
Enable pinctrl and ethernet dwmac driver for the TH1520 SoC boards like
the BeagleV Ahead and the Sipeed LicheePi 4A.

Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Signed-off-by: Drew Fustini <drew@pdp7.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2024-12-16 09:39:10 +00:00
Drew Fustini
0207244ea0
riscv: defconfig: enable pinctrl and dwmac support for TH1520
Enable pinctrl and ethernet dwmac driver for the TH1520 SoC boards like
the BeagleV Ahead and the Sipeed LicheePi 4A.

Signed-off-by: Drew Fustini <drew@pdp7.com>
Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Link: https://lore.kernel.org/r/20241113184333.829716-1-drew@pdp7.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-12-11 07:09:46 -08:00
Linus Torvalds
91dbbe6c9f RISC-V Paches for the 6.13 Merge Window, Part 1
* Support for pointer masking in userspace,
 * Support for probing vector misaligned access performance.
 * Support for qspinlock on systems with Zacas and Zabha.
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Merge tag 'riscv-for-linus-6.13-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-v updates from Palmer Dabbelt:

 - Support for pointer masking in userspace

 - Support for probing vector misaligned access performance

 - Support for qspinlock on systems with Zacas and Zabha

* tag 'riscv-for-linus-6.13-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (38 commits)
  RISC-V: Remove unnecessary include from compat.h
  riscv: Fix default misaligned access trap
  riscv: Add qspinlock support
  dt-bindings: riscv: Add Ziccrse ISA extension description
  riscv: Add ISA extension parsing for Ziccrse
  asm-generic: ticket-lock: Add separate ticket-lock.h
  asm-generic: ticket-lock: Reuse arch_spinlock_t of qspinlock
  riscv: Implement xchg8/16() using Zabha
  riscv: Implement arch_cmpxchg128() using Zacas
  riscv: Improve zacas fully-ordered cmpxchg()
  riscv: Implement cmpxchg8/16() using Zabha
  dt-bindings: riscv: Add Zabha ISA extension description
  riscv: Implement cmpxchg32/64() using Zacas
  riscv: Do not fail to build on byte/halfword operations with Zawrs
  riscv: Move cpufeature.h macros into their own header
  KVM: riscv: selftests: Add Smnpm and Ssnpm to get-reg-list test
  RISC-V: KVM: Allow Smnpm and Ssnpm extensions for guests
  riscv: hwprobe: Export the Supm ISA extension
  riscv: selftests: Add a pointer masking test
  riscv: Allow ptrace control of the tagged address ABI
  ...
2024-11-27 11:19:09 -08:00
Linus Torvalds
bf9aa14fc5 A rather large update for timekeeping and timers:
- The final step to get rid of auto-rearming posix-timers
 
     posix-timers are currently auto-rearmed by the kernel when the signal
     of the timer is ignored so that the timer signal can be delivered once
     the corresponding signal is unignored.
 
     This requires to throttle the timer to prevent a DoS by small intervals
     and keeps the system pointlessly out of low power states for no value.
     This is a long standing non-trivial problem due to the lock order of
     posix-timer lock and the sighand lock along with life time issues as
     the timer and the sigqueue have different life time rules.
 
     Cure this by:
 
      * Embedding the sigqueue into the timer struct to have the same life
        time rules. Aside of that this also avoids the lookup of the timer
        in the signal delivery and rearm path as it's just a always valid
        container_of() now.
 
      * Queuing ignored timer signals onto a seperate ignored list.
 
      * Moving queued timer signals onto the ignored list when the signal is
        switched to SIG_IGN before it could be delivered.
 
      * Walking the ignored list when SIG_IGN is lifted and requeue the
        signals to the actual signal lists. This allows the signal delivery
        code to rearm the timer.
 
     This also required to consolidate the signal delivery rules so they are
     consistent across all situations. With that all self test scenarios
     finally succeed.
 
   - Core infrastructure for VFS multigrain timestamping
 
     This is required to allow the kernel to use coarse grained time stamps
     by default and switch to fine grained time stamps when inode attributes
     are actively observed via getattr().
 
     These changes have been provided to the VFS tree as well, so that the
     VFS specific infrastructure could be built on top.
 
   - Cleanup and consolidation of the sleep() infrastructure
 
     * Move all sleep and timeout functions into one file
 
     * Rework udelay() and ndelay() into proper documented inline functions
       and replace the hardcoded magic numbers by proper defines.
 
     * Rework the fsleep() implementation to take the reality of the timer
       wheel granularity on different HZ values into account. Right now the
       boundaries are hard coded time ranges which fail to provide the
       requested accuracy on different HZ settings.
 
     * Update documentation for all sleep/timeout related functions and fix
       up stale documentation links all over the place
 
     * Fixup a few usage sites
 
   - Rework of timekeeping and adjtimex(2) to prepare for multiple PTP clocks
 
     A system can have multiple PTP clocks which are participating in
     seperate and independent PTP clock domains. So far the kernel only
     considers the PTP clock which is based on CLOCK TAI relevant as that's
     the clock which drives the timekeeping adjustments via the various user
     space daemons through adjtimex(2).
 
     The non TAI based clock domains are accessible via the file descriptor
     based posix clocks, but their usability is very limited. They can't be
     accessed fast as they always go all the way out to the hardware and
     they cannot be utilized in the kernel itself.
 
     As Time Sensitive Networking (TSN) gains traction it is required to
     provide fast user and kernel space access to these clocks.
 
     The approach taken is to utilize the timekeeping and adjtimex(2)
     infrastructure to provide this access in a similar way how the kernel
     provides access to clock MONOTONIC, REALTIME etc.
 
     Instead of creating a duplicated infrastructure this rework converts
     timekeeping and adjtimex(2) into generic functionality which operates
     on pointers to data structures instead of using static variables.
 
     This allows to provide time accessors and adjtimex(2) functionality for
     the independent PTP clocks in a subsequent step.
 
   - Consolidate hrtimer initialization
 
     hrtimers are set up by initializing the data structure and then
     seperately setting the callback function for historical reasons.
 
     That's an extra unnecessary step and makes Rust support less straight
     forward than it should be.
 
     Provide a new set of hrtimer_setup*() functions and convert the core
     code and a few usage sites of the less frequently used interfaces over.
 
     The bulk of the htimer_init() to hrtimer_setup() conversion is already
     prepared and scheduled for the next merge window.
 
   - Drivers:
 
     * Ensure that the global timekeeping clocksource is utilizing the
       cluster 0 timer on MIPS multi-cluster systems.
 
       Otherwise CPUs on different clusters use their cluster specific
       clocksource which is not guaranteed to be synchronized with other
       clusters.
 
     * Mostly boring cleanups, fixes, improvements and code movement
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Merge tag 'timers-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "A rather large update for timekeeping and timers:

   - The final step to get rid of auto-rearming posix-timers

     posix-timers are currently auto-rearmed by the kernel when the
     signal of the timer is ignored so that the timer signal can be
     delivered once the corresponding signal is unignored.

     This requires to throttle the timer to prevent a DoS by small
     intervals and keeps the system pointlessly out of low power states
     for no value. This is a long standing non-trivial problem due to
     the lock order of posix-timer lock and the sighand lock along with
     life time issues as the timer and the sigqueue have different life
     time rules.

     Cure this by:

       - Embedding the sigqueue into the timer struct to have the same
         life time rules. Aside of that this also avoids the lookup of
         the timer in the signal delivery and rearm path as it's just a
         always valid container_of() now.

       - Queuing ignored timer signals onto a seperate ignored list.

       - Moving queued timer signals onto the ignored list when the
         signal is switched to SIG_IGN before it could be delivered.

       - Walking the ignored list when SIG_IGN is lifted and requeue the
         signals to the actual signal lists. This allows the signal
         delivery code to rearm the timer.

     This also required to consolidate the signal delivery rules so they
     are consistent across all situations. With that all self test
     scenarios finally succeed.

   - Core infrastructure for VFS multigrain timestamping

     This is required to allow the kernel to use coarse grained time
     stamps by default and switch to fine grained time stamps when inode
     attributes are actively observed via getattr().

     These changes have been provided to the VFS tree as well, so that
     the VFS specific infrastructure could be built on top.

   - Cleanup and consolidation of the sleep() infrastructure

       - Move all sleep and timeout functions into one file

       - Rework udelay() and ndelay() into proper documented inline
         functions and replace the hardcoded magic numbers by proper
         defines.

       - Rework the fsleep() implementation to take the reality of the
         timer wheel granularity on different HZ values into account.
         Right now the boundaries are hard coded time ranges which fail
         to provide the requested accuracy on different HZ settings.

       - Update documentation for all sleep/timeout related functions
         and fix up stale documentation links all over the place

       - Fixup a few usage sites

   - Rework of timekeeping and adjtimex(2) to prepare for multiple PTP
     clocks

     A system can have multiple PTP clocks which are participating in
     seperate and independent PTP clock domains. So far the kernel only
     considers the PTP clock which is based on CLOCK TAI relevant as
     that's the clock which drives the timekeeping adjustments via the
     various user space daemons through adjtimex(2).

     The non TAI based clock domains are accessible via the file
     descriptor based posix clocks, but their usability is very limited.
     They can't be accessed fast as they always go all the way out to
     the hardware and they cannot be utilized in the kernel itself.

     As Time Sensitive Networking (TSN) gains traction it is required to
     provide fast user and kernel space access to these clocks.

     The approach taken is to utilize the timekeeping and adjtimex(2)
     infrastructure to provide this access in a similar way how the
     kernel provides access to clock MONOTONIC, REALTIME etc.

     Instead of creating a duplicated infrastructure this rework
     converts timekeeping and adjtimex(2) into generic functionality
     which operates on pointers to data structures instead of using
     static variables.

     This allows to provide time accessors and adjtimex(2) functionality
     for the independent PTP clocks in a subsequent step.

   - Consolidate hrtimer initialization

     hrtimers are set up by initializing the data structure and then
     seperately setting the callback function for historical reasons.

     That's an extra unnecessary step and makes Rust support less
     straight forward than it should be.

     Provide a new set of hrtimer_setup*() functions and convert the
     core code and a few usage sites of the less frequently used
     interfaces over.

     The bulk of the htimer_init() to hrtimer_setup() conversion is
     already prepared and scheduled for the next merge window.

   - Drivers:

       - Ensure that the global timekeeping clocksource is utilizing the
         cluster 0 timer on MIPS multi-cluster systems.

         Otherwise CPUs on different clusters use their cluster specific
         clocksource which is not guaranteed to be synchronized with
         other clusters.

       - Mostly boring cleanups, fixes, improvements and code movement"

* tag 'timers-core-2024-11-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (140 commits)
  posix-timers: Fix spurious warning on double enqueue versus do_exit()
  clocksource/drivers/arm_arch_timer: Use of_property_present() for non-boolean properties
  clocksource/drivers/gpx: Remove redundant casts
  clocksource/drivers/timer-ti-dm: Fix child node refcount handling
  dt-bindings: timer: actions,owl-timer: convert to YAML
  clocksource/drivers/ralink: Add Ralink System Tick Counter driver
  clocksource/drivers/mips-gic-timer: Always use cluster 0 counter as clocksource
  clocksource/drivers/timer-ti-dm: Don't fail probe if int not found
  clocksource/drivers:sp804: Make user selectable
  clocksource/drivers/dw_apb: Remove unused dw_apb_clockevent functions
  hrtimers: Delete hrtimer_init_on_stack()
  alarmtimer: Switch to use hrtimer_setup() and hrtimer_setup_on_stack()
  io_uring: Switch to use hrtimer_setup_on_stack()
  sched/idle: Switch to use hrtimer_setup_on_stack()
  hrtimers: Delete hrtimer_init_sleeper_on_stack()
  wait: Switch to use hrtimer_setup_sleeper_on_stack()
  timers: Switch to use hrtimer_setup_sleeper_on_stack()
  net: pktgen: Switch to use hrtimer_setup_sleeper_on_stack()
  futex: Switch to use hrtimer_setup_sleeper_on_stack()
  fs/aio: Switch to use hrtimer_setup_sleeper_on_stack()
  ...
2024-11-19 16:35:06 -08:00
Inochi Amaoto
6da33567c0 riscv: defconfig: Enable T-HEAD C900 ACLINT SSWI drivers
Add support for T-HEAD C900 ACLINT SSWI irqchip.

Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20241031060859.722258-4-inochiama@gmail.com
2024-11-07 00:28:27 +01:00
Thomas Gleixner
d44d26987b timekeeping: Remove CONFIG_DEBUG_TIMEKEEPING
Since 135225a363 timekeeping_cycles_to_ns() handles large offsets which
would lead to 64bit multiplication overflows correctly. It's also protected
against negative motion of the clocksource unconditionally, which was
exclusive to x86 before.

timekeeping_advance() handles large offsets already correctly.

That means the value of CONFIG_DEBUG_TIMEKEEPING which analyzed these cases
is very close to zero. Remove all of it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <jstultz@google.com>
Link: https://lore.kernel.org/all/20241031120328.536010148@linutronix.de
2024-11-02 10:14:31 +01:00
Drew Fustini
5fb0ecf73e
riscv: defconfig: enable gpio support for TH1520
Enable gpio-dwapb driver which is used by TH1520-based boards like the
BeagleV Ahead and the Sipeed LicheePi 4A.

Signed-off-by: Drew Fustini <drew@pdp7.com>
Link: https://lore.kernel.org/r/20241014205315.1349391-1-drew@pdp7.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-10-16 07:21:26 -07:00
Linus Torvalds
97d8894b6f RISC-V Patches for the 6.12 Merge Window, Part 1
* Support for using Zkr to seed KASLR.
 * Support for IPI-triggered CPU backtracing.
 * Support for generic CPU vulnerabilities reporting to userspace.
 * A few cleanups for missing licenses.
 * The size limit on the XIP kernel has been removed.
 * Support for tracing userspace stacks.
 * Support for the Svvptc extension.
 * Various cleanups and fixes throughout the tree.
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Merge tag 'riscv-for-linus-6.12-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Palmer Dabbelt:

 - Support using Zkr to seed KASLR

 - Support IPI-triggered CPU backtracing

 - Support for generic CPU vulnerabilities reporting to userspace

 - A few cleanups for missing licenses

 - The size limit on the XIP kernel has been removed

 - Support for tracing userspace stacks

 - Support for the Svvptc extension

 - Various cleanups and fixes throughout the tree

* tag 'riscv-for-linus-6.12-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (47 commits)
  crash: Fix riscv64 crash memory reserve dead loop
  perf/riscv-sbi: Add platform specific firmware event handling
  tools: Optimize ring buffer for riscv
  tools: Add riscv barrier implementation
  RISC-V: Don't have MAX_PHYSMEM_BITS exceed phys_addr_t
  ACPI: NUMA: initialize all values of acpi_early_node_map to NUMA_NO_NODE
  riscv: Enable bitops instrumentation
  riscv: Omit optimized string routines when using KASAN
  ACPI: RISCV: Make acpi_numa_get_nid() to be static
  riscv: Randomize lower bits of stack address
  selftests: riscv: Allow mmap test to compile on 32-bit
  riscv: Make riscv_isa_vendor_ext_andes array static
  riscv: Use LIST_HEAD() to simplify code
  riscv: defconfig: Disable RZ/Five peripheral support
  RISC-V: Implement kgdb_roundup_cpus() to enable future NMI Roundup
  riscv: avoid Imbalance in RAS
  riscv: cacheinfo: Add back init_cache_level() function
  riscv: Remove unused _TIF_WORK_MASK
  drivers/perf: riscv: Remove redundant macro check
  riscv: define ILLEGAL_POINTER_VALUE for 64bit
  ...
2024-09-24 10:59:17 -07:00
Linus Torvalds
4e2c9cd7dc i2c-for-6.12-rc1
I2C core
 ========
 
 After 15 years of deprecation, the I2C_COMPAT symbol has finally been
 removed. Also client addresses are now locked during initialization to
 prevent race conditions between different kinds of instantiation. Scoped
 foreach OF child loops are now used. And the testunit has received some
 cleanups and documentation improvements as well as two new tests, one
 for repeated start and one for triggering SMBusAlert interrupts.
 
 I2C host drivers
 ================
 
 The DesignWare and the Renesas I2C drivers have received most of
 the changes in this pull request.
 
 The first has has undergone through a series of cleanups that
 have been sent to the mailing list a year ago for the first time
 and finally get merged in this pull request. They are many, from
 typos (e.g. i2/i2c), to cosmetics, to refactoring (e.g. move
 inline functions to librarieas) and many others.
 
 Besides that, all the DesignWare Kconfig options have been
 grouped under the I2C_DESIGNWARE_CORE and this required some
 adaptation in many of the kernel configuration files for
 different arm and mips boards.
 
 Follows the list of the rest of the changes grouped by type of
 change.
 
 Cleanups
 --------
 The Qualcomm Geni platform improves the exit path in the runtime
 resume function.
 
 The Intel LJCA driver loses "target_addr" parameter in
 ljca_i2c_stop() because it was unused.
 
 The MediaTek controller intializes the restart_flag in the
 transfer function using the ternary conditional operator ("? :")
 instead of initializing it in different parts.
 
 Constified a few global data structures in the virtio driver.
 
 The Renesas driver simplifies the bus speed handling in the init
 function making it more readable.
 
 Improved an if/else statement in probe function of the Renesas
 R-Car driver.
 
 The iMX/MXC driver switches to using the RUNTIME_PM_OPS() instead
 of SET_RUNTIME_PM_OPS().
 
 Still in the iMX/MXC driver a comma ',' has been replaced by a
 semicolon ';', while in different drivers the ',' has been
 removed from the '{ }' delimiters.
 
 Finally three devm_clk_get_enabled() have been used to simplify
 the devm_clk_get/clk_prepare_enable tuple in the Renesas EMEV2,
 Ingenic and MPC drivers.
 
 Refactors
 ---------
 The Nuvoton fixes a potential out of boundary array access. This
 is not a bug fix because the issue could never occur due to
 hardware not having the properties listed in the array. The
 change makes the driver more future proof and, at the same time,
 silences code analyzers.
 
 Improvements
 ------------
 The Renesas I2C (riic) driver undergoes several patches improving
 the runtime power management handling.
 
 The Intel i801 driver uses a more descriptive adapter's name to
 show the presence of the IDF feature.
 
 In the Intel Denverton (ismt) adapter the pending transactions
 are killed when irq's can't complete their handling, triggering a
 timeout. This could have been considered as a bug fix, but
 because, standing to Vasily, it's very sporadic, I preferred
 considering the patch rather as an improvement.
 
 New Feature
 -----------
 The Renesas I2C (riic) driver now supports the fast mode plus.
 
 New support
 -----------
 Added support for:
 
     - Renesas R9A08G045
     - Rockchip RK3576
     - KEBA I2C
     - Theobroma Systems Mule Multiplexer.
 
 The Keba comes with a new driver, i2c-keba.c.
 The Mule is an i2c multiplexer and it also comes with a new
 driver, mux/i2c-mux-mule.c.
 
 Core patch
 ----------
 This pull request includes also a patch in the I2C framework, in
 i2c-core-base.c where the runtime PM functions have been replaced
 in order to allow to be accessed during the device add.
 
 Devicetree
 ----------
 Some cleanups in the devicetree, as well. nVidia and Qualcomm
 bindings improve their "if:then:" blocks. While the aspeed
 binding loses the "multi-master" property because it was
 redundant.
 
 The i2c-sprd binding has been converted to YAML.
 
 AT24 updates
 ============
 
 - document a new model from giantec in DT bindings
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Merge tag 'i2c-for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:
 "I2C core:

   - finally remove the I2C_COMPAT symbol after 15 years of deprecation

   - lock client addresses during initialization to prevent race
     conditions between different kinds of instantiation

   - use scoped foreach OF child loops

   - testunit cleanups and documentation improvements, as well as two
     new tests, one for repeated start and one for triggering SMBusAlert
     interrupts

  I2C host drivers:

   - DesignWare and Renesas I2C driver updates.

     The first has has undergone through a series of cleanups that have
     been sent to the mailing list a year ago for the first time and
     finally get merged in this pull request. They are many, from typos
     (e.g. i2/i2c), to cosmetics, to refactoring (e.g. move inline
     functions to librarieas) and many others.

   - all the DesignWare Kconfig options have been grouped under the
     I2C_DESIGNWARE_CORE and this required some adaptation in many of
     the kernel configuration files for different arm and mips boards

  Cleanups:

   - improve the exit path in the runtime resume function for the
     Qualcomm Geni platform

   - get rid of the unused "target_addr" parameter in the Intel LJCA
     driver

   - intialize the restart_flag in the MediaTek controller in one single
     place

   - constify a few global data structures in the virtio driver

   - simplify the bus speed handling in the Renesas driver init function
     making it more readable

   - improved probe function of the Renesas R-Car driver

   - switch the iMX/MXC driver to use RUNTIME_PM_OPS() instead of
     SET_RUNTIME_PM_OPS()

   - iMX/MXC driver cleanups

   - use devm_clk_get_enabled() to simplify the Renesas EMEV2, Ingenic
     and MPC drivers

  Refactoring:

   - Fix a potential out of boundary array access in the Nuvoton driver.

     This is not a bug fix because the issue could never occur due to
     hardware not having the properties listed in the array. The change
     makes the driver more future proof and, at the same time, silences
     code analyzers.

  Improvements:

   - several patches improving the runtime power management handling of
     the Renesas I2C (riic) driver

   - use a more descriptive adapter name in the Intel i801 driver to
     show the presence of the IDF feature

   - kill pending transactions when irq's can't complete their handling
     in the Intel Denverton (ismt) driver, triggering a timeout

  New Feature:

   - support fast mode plus in the Renesas I2C (riic) driver

  New support:

   - Added support for:
      - Renesas R9A08G045
      - Rockchip RK3576
      - KEBA I2C
      - Theobroma Systems Mule Multiplexer.

   - new i2c-keba.c driver

   - new driver for The Mule i2c multiplexer

  Core I2C framework:

   - move runtime PM functions in order to allow them to be accessed
     during device add

  Devicetree:

   - nVidia and Qualcomm binding improvements

   - get rid of redundant "multi-master" property in the aspeed binding

   - convert i2c-sprd binding to YAML

  AT24 updates:

  - document a new model from giantec in DT bindings"

* tag 'i2c-for-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (69 commits)
  i2c: designware: Use pci_get_drvdata()
  i2c: designware: Propagate firmware node
  i2c: designware: Uninline i2c_dw_probe()
  i2c: ljca: Remove unused "target_addr" parameter
  i2c: keba: Add KEBA I2C controller support
  i2c: i801: Use a different adapter-name for IDF adapters
  i2c: core: Setup i2c_adapter runtime-pm before calling device_add()
  dt-bindings: i2c: i2c-sprd: convert to YAML
  i2c: ismt: kill transaction in hardware on timeout
  i2c: designware: Group all DesignWare drivers under a single option
  net: txgbe: Fix I2C Kconfig dependencies
  RISC-V: configs: enable I2C_DESIGNWARE_CORE with I2C_DESIGNWARE_PLATFORM
  mips: configs: enable I2C_DESIGNWARE_CORE with I2C_DESIGNWARE_PLATFORM
  arm64: defconfig: enable I2C_DESIGNWARE_CORE with I2C_DESIGNWARE_PLATFORM
  ARM: configs: enable I2C_DESIGNWARE_CORE with I2C_DESIGNWARE_PLATFORM
  ARC: configs: enable I2C_DESIGNWARE_CORE with I2C_DESIGNWARE_PLATFORM
  i2c: virtio: Constify struct i2c_algorithm and struct virtio_device_id
  i2c: rcar: tidyup priv->devtype handling on rcar_i2c_probe()
  i2c: imx: Convert comma to semicolon
  i2c: jz4780: Use devm_clk_get_enabled() helpers
  ...
2024-09-23 14:34:19 -07:00
Geert Uytterhoeven
e36ddf3226
riscv: defconfig: Disable RZ/Five peripheral support
There is not much point in keeping support for RZ/Five peripherals
enabled, as the RZ/Five platform option (ARCH_R9A07G043) is gated behind
NONPORTABLE.  Hence drop all config options that enable built-in or
modular support for peripherals found on RZ/Five SoCs.

Disable USB_XHCI_RCAR explicitly, as its value defaults to the value of
ARCH_RENESAS, which is still enabled.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/89ad70c7d6e8078208fecfd41dc03f6028531729.1722353710.git.geert+renesas@glider.be
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-17 06:13:21 -07:00
Heikki Krogerus
0175b1d3c6 RISC-V: configs: enable I2C_DESIGNWARE_CORE with I2C_DESIGNWARE_PLATFORM
The dependency handling of the Synopsys DesignWare I2C
adapter drivers is going to be changed so that the glue
drivers for the PCI and platform buses depend on
I2C_DESIGNWARE_CORE.

Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-riscv@lists.infradead.org
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
2024-09-10 00:36:53 +02:00
Inochi Amaoto
72160ec6cb riscv: defconfig: Enable pinctrl support for CV18XX Series SoC
Enable pinctrl driver for the whole CV18XX series.

Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2024-09-09 12:55:53 +01:00
Chen Wang
3ccedd259c riscv: defconfig: sophgo: enable clks for sg2042
Enable clk generators for sg2042 due to many peripherals rely on
these clocks.

Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2024-08-19 18:02:08 +01:00
Conor Dooley
82b4616806
RISC-V: run savedefconfig for defconfig
It's been a while since this was run, and there's a few things that have
changed. Firstly, almost all of the Renesas stuff vanishes because the
config for the RZ/Five is gated behind NONPORTABLE. Several options
(like CONFIG_PM) are removed as they are the default values.

To retain DEFVFREQ_THERMAL and BLK_DEV_THROTTLING, add PM_DEVFREQ and
BLK_CGROUP respectively.

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240717-shrubs-concise-51600886babf@spud
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-07-22 10:57:47 -07:00
Hal Feng
d8a7d89abb riscv: defconfig: Enable StarFive JH7110 drivers
Add support for StarFive JH7110 SoC and VisionFive 2 board.
- Cache
- Temperature sensor
- PMIC (AXP15060)
- Ethernet PHY (YT8531)
- Restart GPIO
- RNG
- I2C
- SPI
- Quad SPI
- PCIe
- USB & USB 2.0 PHY & PCIe 2.0/USB 3.0 PHY
- Audio (I2S / TDM / PWM-DAC)
- MIPI-CSI2 RX & D-PHY RX

Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2024-06-12 23:16:55 +01:00
Linus Torvalds
0bfbc914d9 RISC-V Patches for the 6.10 Merge Window, Part 1
* Support for byte/half-word compare-and-exchange, emulated via LR/SC
   loops.
 * Support for Rust.
 * Support for Zihintpause in hwprobe.
 * Support for the PR_RISCV_SET_ICACHE_FLUSH_CTX prctl().
 * Support for lockless lockrefs.
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Merge tag 'riscv-for-linus-6.10-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Palmer Dabbelt:

 - Add byte/half-word compare-and-exchange, emulated via LR/SC loops

 - Support for Rust

 - Support for Zihintpause in hwprobe

 - Add PR_RISCV_SET_ICACHE_FLUSH_CTX prctl()

 - Support lockless lockrefs

* tag 'riscv-for-linus-6.10-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (42 commits)
  riscv: defconfig: Enable CONFIG_CLK_SOPHGO_CV1800
  riscv: select ARCH_HAS_FAST_MULTIPLIER
  riscv: mm: still create swiotlb buffer for kmalloc() bouncing if required
  riscv: Annotate pgtable_l{4,5}_enabled with __ro_after_init
  riscv: Remove redundant CONFIG_64BIT from pgtable_l{4,5}_enabled
  riscv: mm: Always use an ASID to flush mm contexts
  riscv: mm: Preserve global TLB entries when switching contexts
  riscv: mm: Make asid_bits a local variable
  riscv: mm: Use a fixed layout for the MM context ID
  riscv: mm: Introduce cntx2asid/cntx2version helper macros
  riscv: Avoid TLB flush loops when affected by SiFive CIP-1200
  riscv: Apply SiFive CIP-1200 workaround to single-ASID sfence.vma
  riscv: mm: Combine the SMP and UP TLB flush code
  riscv: Only send remote fences when some other CPU is online
  riscv: mm: Broadcast kernel TLB flushes only when needed
  riscv: Use IPIs for remote cache/TLB flushes by default
  riscv: Factor out page table TLB synchronization
  riscv: Flush the instruction cache during SMP bringup
  riscv: hwprobe: export Zihintpause ISA extension
  riscv: misaligned: remove CONFIG_RISCV_M_MODE specific code
  ...
2024-05-22 09:56:00 -07:00
Linus Torvalds
a19264d086 printk changes for 6.10
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Merge tag 'printk-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

Pull printk updates from Petr Mladek:

 - Use no_printk() instead of "if (0) printk()" constructs to avoid
   generating printk index for messages disabled at compile time

 - Remove deprecated strncpy/strcpy from printk.c

 - Remove redundant CONFIG_BASE_FULL in favor of CONFIG_BASE_SMALL

* tag 'printk-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux:
  printk: cleanup deprecated uses of strncpy/strcpy
  printk: Remove redundant CONFIG_BASE_FULL
  printk: Change type of CONFIG_BASE_SMALL to bool
  printk: Fix LOG_CPU_MAX_BUF_SHIFT when BASE_SMALL is enabled
  ceph: Use no_printk() helper
  dyndbg: Use *no_printk() helpers
  dev_printk: Add and use dev_no_printk()
  printk: Let no_printk() use _printk()
2024-05-15 12:34:46 -07:00
Inochi Amaoto
92cce91949
riscv: defconfig: Enable CONFIG_CLK_SOPHGO_CV1800
CONFIG_CLK_SOPHGO_CV1800 is required when booting the minimum
system for CV1800 series board.

Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
Link: https://lore.kernel.org/r/IA1PR20MB49537E8B2D1FAAA7D5B8BDA2BB052@IA1PR20MB4953.namprd20.prod.outlook.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-05-13 14:26:34 -07:00
Yoann Congal
27021649ec printk: Remove redundant CONFIG_BASE_FULL
CONFIG_BASE_FULL is equivalent to !CONFIG_BASE_SMALL and is enabled by
default: CONFIG_BASE_SMALL is the special case to take care of.
So, remove CONFIG_BASE_FULL and move the config choice to
CONFIG_BASE_SMALL (which defaults to 'n')

For defconfigs explicitely disabling BASE_FULL, explicitely enable
BASE_SMALL.
For defconfigs explicitely enabling BASE_FULL, drop it as it is the
default.

Signed-off-by: Yoann Congal <yoann.congal@smile.fr>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20240505080343.1471198-4-yoann.congal@smile.fr
Signed-off-by: Petr Mladek <pmladek@suse.com>
2024-05-06 17:39:09 +02:00
Yangyu Chen
cd899f85b1 riscv: config: enable ARCH_CANAAN in defconfig
Since K230 has been supported, allow ARCH_CANAAN to be selected to build dt
and drivers for it in defconfig.

Signed-off-by: Yangyu Chen <cyy@cyyself.name>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Guo Ren <guoren@kernel.org>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2024-04-10 11:42:13 +01:00
Conor Dooley
1553a1c482 RISC-V: drop SOC_VIRT for ARCH_VIRT
The ARCH_ and SOC_ versions of this symbol have persisted for quite a
while now in parallel. Generated .config files from previous LTS kernels
should have both. Finally remove SOC_VIRT and update all config files
using it.

Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2024-04-10 11:37:50 +01:00
Conor Dooley
d2a351e637 RISC-V: drop SOC_SIFIVE for ARCH_SIFIVE
All the users in the kernel are gone and generated .config files from
previous LTS kernels will contain ARCH_SIFIVE. Drop SOC_SIFIVE and
update the defconfig.

Reviewed-by: Samuel Holland <samuel.holland@sifive.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2024-04-10 11:35:34 +01:00
Conor Dooley
37c09ed419 RISC-V: drop SOC_MICROCHIP_POLARFIRE for ARCH_MICROCHIP
SOC_MICROCHIP_POLARFIRE doesn't have any remaining in-kernel users, so
time has come to remove it. Foolish auld me left the "POLARFIRE" in the
new, hidden, config option when I renamed it and changed all of the
users however. As HPSC has been announced, and is not a PolarFire,
drop mention of that specific FPGA family from the new user-visible
config option.

Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2024-04-10 11:34:27 +01:00
Yangyu Chen
ef10bdf9c3 riscv: Kconfig.socs: Split ARCH_CANAAN and SOC_CANAAN_K210
Since SOC_FOO should be deprecated from patch [1], and cleanup for other
SoCs is already in the mailing list [2,3,4], we remove the use of
SOC_CANAAN and use ARCH_CANAAN for SoCs vendored by Canaan instead from now
on. And allows ARCH_CANAAN to be selected for other Canaan SoCs. However,
we should keep the config SOC_CANAAN and use def_bool to redirect the
symbol temporarily to avoid potential conflict.

Since we now have Canaan Kendryte K230 with MMU, ARCH_CANAAN is no longer
referred to as K210. There are some special features for K210, like M-Mode
No MMU and loader.bin in arch/riscv/Makefile. If we keep ARCH_CANAAN for
other Canaan SoCs and remove the K210, the depends on !MMU in Kconfig may
confuse some users who try to boot Kernel with MMU on K210, as Damien
mentioned in the list [5]. Thus, we introduce a new symbol SOC_CANAAN_K210
for any conditional code or driver selection specific to the K210, so users
will not try to build some K210-specific things when MMU is enabled and see
it fails to boot on K210.

[1] https://lore.kernel.org/linux-riscv/20221121221414.109965-1-conor@kernel.org/
[2] https://lore.kernel.org/linux-riscv/20240305-praying-clad-c4fbcaa7ed0a@spud/
[3] https://lore.kernel.org/linux-riscv/20240305-fled-undrilled-41dc0c46bb29@spud/
[4] https://lore.kernel.org/linux-riscv/20240305-stress-earflap-d7ddb8655a4d@spud/
[5] https://lore.kernel.org/linux-riscv/2b0511af-1b5b-4c90-a673-c9113bb58142@kernel.org/

Signed-off-by: Yangyu Chen <cyy@cyyself.name>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2024-04-05 16:42:50 +01:00
Linus Torvalds
c150b809f7 RISC-V Patches for the 6.9 Merge Window
* Support for various vector-accelerated crypto routines.
 * Hibernation is now enabled for portable kernel builds.
 * mmap_rnd_bits_max is larger on systems with larger VAs.
 * Support for fast GUP.
 * Support for membarrier-based instruction cache synchronization.
 * Support for the Andes hart-level interrupt controller and PMU.
 * Some cleanups around unaligned access speed probing and Kconfig
   settings.
 * Support for ACPI LPI and CPPC.
 * Various cleanus related to barriers.
 * A handful of fixes.
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Merge tag 'riscv-for-linus-6.9-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Palmer Dabbelt:

 - Support for various vector-accelerated crypto routines

 - Hibernation is now enabled for portable kernel builds

 - mmap_rnd_bits_max is larger on systems with larger VAs

 - Support for fast GUP

 - Support for membarrier-based instruction cache synchronization

 - Support for the Andes hart-level interrupt controller and PMU

 - Some cleanups around unaligned access speed probing and Kconfig
   settings

 - Support for ACPI LPI and CPPC

 - Various cleanus related to barriers

 - A handful of fixes

* tag 'riscv-for-linus-6.9-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (66 commits)
  riscv: Fix syscall wrapper for >word-size arguments
  crypto: riscv - add vector crypto accelerated AES-CBC-CTS
  crypto: riscv - parallelize AES-CBC decryption
  riscv: Only flush the mm icache when setting an exec pte
  riscv: Use kcalloc() instead of kzalloc()
  riscv/barrier: Add missing space after ','
  riscv/barrier: Consolidate fence definitions
  riscv/barrier: Define RISCV_FULL_BARRIER
  riscv/barrier: Define __{mb,rmb,wmb}
  RISC-V: defconfig: Enable CONFIG_ACPI_CPPC_CPUFREQ
  cpufreq: Move CPPC configs to common Kconfig and add RISC-V
  ACPI: RISC-V: Add CPPC driver
  ACPI: Enable ACPI_PROCESSOR for RISC-V
  ACPI: RISC-V: Add LPI driver
  cpuidle: RISC-V: Move few functions to arch/riscv
  riscv: Introduce set_compat_task() in asm/compat.h
  riscv: Introduce is_compat_thread() into compat.h
  riscv: add compile-time test into is_compat_task()
  riscv: Replace direct thread flag check with is_compat_task()
  riscv: Improve arch_get_mmap_end() macro
  ...
2024-03-22 10:41:13 -07:00
Palmer Dabbelt
028d1aee1f
Merge patch series "RISC-V: ACPI: Enable CPPC based cpufreq support"
Sunil V L <sunilvl@ventanamicro.com> says:

This series enables the support for "Collaborative Processor Performance
Control (CPPC) on ACPI based RISC-V platforms. It depends on the
encoding of CPPC registers as defined in RISC-V FFH spec [2].

CPPC is described in the ACPI spec [1]. RISC-V FFH spec required to
enable this, is available at [2].

[1] - https://uefi.org/specs/ACPI/6.5/08_Processor_Configuration_and_Control.html#collaborative-processor-performance-control
[2] - https://github.com/riscv-non-isa/riscv-acpi-ffh/releases/download/v1.0.0/riscv-ffh.pdf

* b4-shazam-merge:
  RISC-V: defconfig: Enable CONFIG_ACPI_CPPC_CPUFREQ
  cpufreq: Move CPPC configs to common Kconfig and add RISC-V
  ACPI: RISC-V: Add CPPC driver

Link: https://lore.kernel.org/r/20240208034414.22579-1-sunilvl@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-03-20 08:56:09 -07:00
Sunil V L
282b9df4e9
RISC-V: defconfig: Enable CONFIG_ACPI_CPPC_CPUFREQ
CONFIG_ACPI_CPPC_CPUFREQ is required to enable CPPC for RISC-V.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20240208034414.22579-4-sunilvl@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-03-19 18:30:56 -07:00
Yangyu Chen
2672031b20 riscv: dts: Move BUILTIN_DTB_SOURCE to common Kconfig
The BUILTIN_DTB_SOURCE was only configured for K210 before. Since
SOC_BUILTIN_DTB_DECLARE was removed at commit d5805af9fe ("riscv: Fix
builtin DTB handling") from patch [1], the kernel cannot choose one of the
dtbs from then on and always take the first one dtb to use. Then, another
commit 0ddd7eaffa ("riscv: Fix BUILTIN_DTB for sifive and microchip soc")
from patch [2] supports BUILTIN_DTB_SOURCE for other SoCs. However, this
feature will only work if the Kconfig we use links the dtb we expected in
the first place as mentioned in the thread [3]. Thus, a config
BUILTIN_DTB_SOURCE is needed for all SoCs to choose one dtb to use.

For some considerations, this patch also removes default y if XIP_KERNEL
for BUILTIN_DTB, as this requires setting a proper dtb to use on the
BUILTIN_DTB_SOURCE, else the kernel with XIP but does not set
BUILTIN_DTB_SOURCE or unselect BUILTIN_DTB will not boot.

Also, this patch removes the default dtb string for k210 from Kconfig to
nommu_k210_defconfig and nommu_k210_sdcard_defconfig to avoid complex
Kconfig settings for other SoCs in the future.

[1] https://lore.kernel.org/linux-riscv/20201208073355.40828-5-damien.lemoal@wdc.com/
[2] https://lore.kernel.org/linux-riscv/20210604120639.1447869-1-alex@ghiti.fr/
[3] https://lore.kernel.org/linux-riscv/CAK7LNATt_56mO2Le4v4EnPnAfd3gC8S_Sm5-GCsfa=qXy=8Lrg@mail.gmail.com/

Signed-off-by: Yangyu Chen <cyy@cyyself.name>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2024-03-06 00:08:32 +00:00
Drew Fustini
45e0b0fd6d
riscv: defconfig: Enable mmc and dma drivers for T-Head TH1520
Enable the mmc controller driver and dma controller driver needed for
T-Head TH1520 based boards, like the LicheePi 4A and BeagleV-Ahead, to
boot from eMMC storage.

Reviewed-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Reviewed-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://lore.kernel.org/r/20231206-th1520_mmc_dts-v8-1-69220e373e8f@baylibre.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-02-16 11:05:07 -08:00
Palmer Dabbelt
951df4eb81
Merge patch series "RISC-V SBI debug console extension support"
Anup Patel <apatel@ventanamicro.com> says:

The SBI v2.0 specification is now frozen. The SBI v2.0 specification defines
SBI debug console (DBCN) extension which replaces the legacy SBI v0.1
functions sbi_console_putchar() and sbi_console_getchar().
(Refer v2.0-rc5 at https://github.com/riscv-non-isa/riscv-sbi-doc/releases)

This series adds support for SBI debug console (DBCN) extension in
Linux RISC-V.

To try these patches with KVM RISC-V, use KVMTOOL from the
riscv_zbx_zicntr_smstateen_condops_v1 branch at:
https://github.com/avpatel/kvmtool.git

* b4-shazam-merge:
  RISC-V: Enable SBI based earlycon support
  tty: Add SBI debug console support to HVC SBI driver
  tty/serial: Add RISC-V SBI debug console based earlycon
  RISC-V: Add SBI debug console helper routines
  RISC-V: Add stubs for sbi_console_putchar/getchar()

Link: https://lore.kernel.org/r/20231124070905.1043092-1-apatel@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-11 07:36:27 -08:00
Anup Patel
50942ad6dd
RISC-V: Enable SBI based earlycon support
Let us enable SBI based earlycon support in defconfig for both RV32
and RV64 so that "earlycon=sbi" can be used again.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Link: https://lore.kernel.org/r/20231124070905.1043092-6-apatel@ventanamicro.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-10 07:04:06 -08:00
Samuel Holland
b7b4e4d79f
riscv: Remove obsolete rv32_defconfig file
This file is not used since commit 72f045d19f ("riscv: Fixup
difference with defconfig"), where it was replaced by the
32-bit.config fragment. Delete the old file to avoid any confusion.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20231121225320.3430550-1-samuel.holland@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-01-09 20:10:14 -08:00
Linus Torvalds
56d428ae1c RISC-V Patches for the 6.7 Merge Window, Part 2
* Support for handling misaligned accesses in S-mode.
 * Probing for misaligned access support is now properly cached and
   handled in parallel.
 * PTDUMP now reflects the SW reserved bits, as well as the PBMT and
   NAPOT extensions.
 * Performance improvements for TLB flushing.
 * Support for many new relocations in the module loader.
 * Various bug fixes and cleanups.
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Merge tag 'riscv-for-linus-6.7-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull more RISC-V updates from Palmer Dabbelt:

 - Support for handling misaligned accesses in S-mode

 - Probing for misaligned access support is now properly cached and
   handled in parallel

 - PTDUMP now reflects the SW reserved bits, as well as the PBMT and
   NAPOT extensions

 - Performance improvements for TLB flushing

 - Support for many new relocations in the module loader

 - Various bug fixes and cleanups

* tag 'riscv-for-linus-6.7-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (51 commits)
  riscv: Optimize bitops with Zbb extension
  riscv: Rearrange hwcap.h and cpufeature.h
  drivers: perf: Do not broadcast to other cpus when starting a counter
  drivers: perf: Check find_first_bit() return value
  of: property: Add fw_devlink support for msi-parent
  RISC-V: Don't fail in riscv_of_parent_hartid() for disabled HARTs
  riscv: Fix set_memory_XX() and set_direct_map_XX() by splitting huge linear mappings
  riscv: Don't use PGD entries for the linear mapping
  RISC-V: Probe misaligned access speed in parallel
  RISC-V: Remove __init on unaligned_emulation_finish()
  RISC-V: Show accurate per-hart isa in /proc/cpuinfo
  RISC-V: Don't rely on positional structure initialization
  riscv: Add tests for riscv module loading
  riscv: Add remaining module relocations
  riscv: Avoid unaligned access when relocating modules
  riscv: split cache ops out of dma-noncoherent.c
  riscv: Improve flush_tlb_kernel_range()
  riscv: Make __flush_tlb_range() loop over pte instead of flushing the whole tlb
  riscv: Improve flush_tlb_range() for hugetlb pages
  riscv: Improve tlb_flush()
  ...
2023-11-10 09:23:17 -08:00
Linus Torvalds
d46392bbf5 RISC-V Patches for the 6.7 Merge Window, Part 1
* Support for cbo.zero in userspace.
 * Support for CBOs on ACPI-based systems.
 * A handful of improvements for the T-Head cache flushing ops.
 * Support for software shadow call stacks.
 * Various cleanups and fixes.
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Merge tag 'riscv-for-linus-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Palmer Dabbelt:

 - Support for cbo.zero in userspace

 - Support for CBOs on ACPI-based systems

 - A handful of improvements for the T-Head cache flushing ops

 - Support for software shadow call stacks

 - Various cleanups and fixes

* tag 'riscv-for-linus-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (31 commits)
  RISC-V: hwprobe: Fix vDSO SIGSEGV
  riscv: configs: defconfig: Enable configs required for RZ/Five SoC
  riscv: errata: prefix T-Head mnemonics with th.
  riscv: put interrupt entries into .irqentry.text
  riscv: mm: Update the comment of CONFIG_PAGE_OFFSET
  riscv: Using TOOLCHAIN_HAS_ZIHINTPAUSE marco replace zihintpause
  riscv/mm: Fix the comment for swap pte format
  RISC-V: clarify the QEMU workaround in ISA parser
  riscv: correct pt_level name via pgtable_l5/4_enabled
  RISC-V: Provide pgtable_l5_enabled on rv32
  clocksource: timer-riscv: Increase rating of clock_event_device for Sstc
  clocksource: timer-riscv: Don't enable/disable timer interrupt
  lkdtm: Fix CFI_BACKWARD on RISC-V
  riscv: Use separate IRQ shadow call stacks
  riscv: Implement Shadow Call Stack
  riscv: Move global pointer loading to a macro
  riscv: Deduplicate IRQ stack switching
  riscv: VMAP_STACK overflow detection thread-safe
  RISC-V: cacheflush: Initialize CBO variables on ACPI systems
  RISC-V: ACPI: RHCT: Add function to get CBO block sizes
  ...
2023-11-08 09:21:18 -08:00
Jinyu Tang
07863871df
riscv: defconfig : add CONFIG_MMC_DW for starfive
If these config not set, mmc can't run for jh7110, rootfs can't
be found when using SD card. So set CONFIG_MMC_DW=y like arm64
defconfig, and set CONFIG_MMC_DW_STARFIVE=y for starfive. Then
starfive vf2 board can start SD card rootfs with mainline defconfig
and dtb.

Signed-off-by: Jinyu Tang <tangjinyu@tinylab.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230912133128.5247-1-tangjinyu@tinylab.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2023-11-05 09:04:54 -08:00