[GIT PULL] RISC-V Patches for the 6.5 Merge Window, Part 1

From: Palmer Dabbelt
Date: Fri Jun 30 2023 - 11:40:59 EST

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The following changes since commit ac9a78681b921877518763ba0e89202254349d1b:

Linux 6.4-rc1 (2023-05-07 13:34:35 -0700)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-6.5-mw1

for you to fetch changes up to 488833ccdcac118da16701f4ee0673b20ba47fe3:

Merge patch series "dt-bindings: riscv: cpus: switch to unevaluatedProperties: false" (2023-06-23 10:06:23 -0700)

----------------------------------------------------------------
RISC-V Patches for the 6.5 Merge Window, Part 1

* Support for ACPI.
* Various cleanups to the ISA string parsing, including making them
case-insensitive
* Support for the vector extension.
* Support for independent irq/softirq stacks.
* Our CPU DT binding now has "unevaluatedProperties: false"

----------------------------------------------------------------
I have a few all{yes,mod}config failures, but it looks like there's at least
fixes on the lists for all of them and most are in linux-next already.

I'm almost certainly going to have a part 2: at least for the DCE stuff (which
I just lost track of this week, sorry), but we've also got a handful of
fixes/cleanups staged and some more on the lists. This was a pretty big merge
window, but it looks like most of the stragglers are pretty small so hopefully
it's not too bad.

There's one merge coflict in MAINTAINERS

diff --cc MAINTAINERS
index 0d6ecb5a4107,e0976ae2a523..cfc2b67e9b4e
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@@ -406,19 -406,6 +406,19 @@@ L: linux-arm-kernel@xxxxxxxxxxxxxxxxxx
S: Maintained
F: drivers/acpi/arm64

- ACPI SERIAL MULTI INSTANTIATE DRIVER
- M: Hans de Goede <hdegoede@xxxxxxxxxx>
- L: platform-driver-x86@xxxxxxxxxxxxxxx
- S: Maintained
- F: drivers/platform/x86/serial-multi-instantiate.c
-
+ACPI FOR RISC-V (ACPI/riscv)
+M: Sunil V L <sunilvl@xxxxxxxxxxxxxxxx>
+L: linux-acpi@xxxxxxxxxxxxxxx
+L: linux-riscv@xxxxxxxxxxxxxxxxxxx
+S: Maintained
+F: drivers/acpi/riscv/
+
++ACPI SERIAL MULTI INSTANTIATE DRIVER
++M: Hans de Goede <hdegoede@xxxxxxxxxx>
++L: platform-driver-x86@xxxxxxxxxxxxxxx
++S: Maintained
++F: drivers/platform/x86/serial-multi-instantiate.c
++
ACPI PCC(Platform Communication Channel) MAILBOX DRIVER
M: Sudeep Holla <sudeep.holla@xxxxxxx>
L: linux-acpi@xxxxxxxxxxxxxxx

----------------------------------------------------------------
Andy Chiu (11):
riscv: hwprobe: Add support for probing V in RISCV_HWPROBE_KEY_IMA_EXT_0
riscv: Allocate user's vector context in the first-use trap
riscv: signal: check fp-reserved words unconditionally
riscv: signal: validate altstack to reflect Vector
riscv: hwcap: change ELF_HWCAP to a function
riscv: Add prctl controls for userspace vector management
riscv: Add sysctl to set the default vector rule for new processes
riscv: detect assembler support for .option arch
riscv: Add documentation for Vector
selftests: Test RISC-V Vector prctl interface
selftests: add .gitignore file for RISC-V hwprobe

Ben Dooks (1):
riscv: say disabling zicbom if no or bad riscv,cbom-block-size found

BjÃ¶rn TÃ¶pel (1):
riscv: mm: Pre-allocate PGD entries for vmalloc/modules area

Conor Dooley (10):
dt-bindings: riscv: drop invalid comment about riscv,isa lower-case reasoning
RISC-V: simplify register width check in ISA string parsing
RISC-V: split early & late of_node to hartid mapping
RISC-V: validate riscv,isa at boot, not during ISA string parsing
RISC-V: rework comments in ISA string parser
RISC-V: remove decrement/increment dance in ISA string parser
dt-bindings: riscv: explicitly mention assumption of Zicntr & Zihpm support
RISC-V: always report presence of extensions formerly part of the base ISA
dt-bindings: riscv: cpus: add a ref the common cpu schema
dt-bindings: riscv: cpus: switch to unevaluatedProperties: false

Evan Green (3):
RISC-V: Add Zba, Zbs extension probing
RISC-V: Track ISA extensions per hart
RISC-V: hwprobe: Expose Zba, Zbb, and Zbs

Fangrui Song (1):
riscv: replace deprecated scall with ecall

Greentime Hu (9):
riscv: Add new csr defines related to vector extension
riscv: Clear vector regfile on bootup
riscv: Introduce Vector enable/disable helpers
riscv: Introduce riscv_v_vsize to record size of Vector context
riscv: Introduce struct/helpers to save/restore per-task Vector state
riscv: Add task switch support for vector
riscv: Add ptrace vector support
riscv: signal: Add sigcontext save/restore for vector
riscv: prevent stack corruption by reserving task_pt_regs(p) early

Guo Ren (7):
riscv: Rename __switch_to_aux() -> fpu
riscv: Extending cpufeature.c to detect V-extension
riscv: Disable Vector Instructions for kernel itself
riscv: Enable Vector code to be built
riscv: stack: Support HAVE_IRQ_EXIT_ON_IRQ_STACK
riscv: stack: Support HAVE_SOFTIRQ_ON_OWN_STACK
riscv: stack: Add config of thread stack size

Jisheng Zhang (3):
riscv: move sbi_init() earlier before jump_label_init()
riscv: mm: stub extable related functions/macros for !MMU
riscv: mm: try VMA lock-based page fault handling first

Krzysztof Kozlowski (1):
dt-bindings: riscv: cpus: drop unneeded quotes

Palmer Dabbelt (7):
Merge patch series "Add basic ACPI support for RISC-V"
Merge patch series "riscv: allow case-insensitive ISA string parsing"
Merge patch series "riscv: Add vector ISA support"
Merge patch series "RISC-V: Export Zba, Zbb to usermode via hwprobe"
Merge patch series "ISA string parser cleanups"
Merge patch series "riscv: Add independent irq/softirq stacks support"
Merge patch series "dt-bindings: riscv: cpus: switch to unevaluatedProperties: false"

Song Shuai (3):
riscv: hibernation: Replace jalr with jr before suspend_restore_regs
riscv: hibernation: Remove duplicate call of suspend_restore_csrs
riscv: hibernate: remove WARN_ON in save_processor_state

Sunil V L (22):
platform/surface: Disable for RISC-V
crypto: hisilicon/qm: Fix to enable build with RISC-V clang
ACPI: tables: Print RINTC information when MADT is parsed
ACPI: OSL: Make should_use_kmap() 0 for RISC-V
RISC-V: Add support to build the ACPI core
ACPI: processor_core: RISC-V: Enable mapping processor to the hartid
RISC-V: Add ACPI initialization in setup_arch()
RISC-V: ACPI: Cache and retrieve the RINTC structure
drivers/acpi: RISC-V: Add RHCT related code
RISC-V: smpboot: Create wrapper setup_smp()
RISC-V: smpboot: Add ACPI support in setup_smp()
RISC-V: only iterate over possible CPUs in ISA string parser
RISC-V: cpufeature: Add ACPI support in riscv_fill_hwcap()
RISC-V: cpu: Enable cpuinfo for ACPI systems
irqchip/riscv-intc: Add ACPI support
clocksource/timer-riscv: Refactor riscv_timer_init_dt()
clocksource/timer-riscv: Add ACPI support
RISC-V: time.c: Add ACPI support for time_init()
RISC-V: Enable ACPI in defconfig
MAINTAINERS: Add entry for drivers/acpi/riscv
RISC-V: ACPI : Fix for usage of pointers in different address space
RISC-V/perf: Use standard interface to get INTC domain

Tiezhu Yang (1):
riscv: uprobes: Restore thread.bad_cause

Viacheslav Mitrofanov (1):
perf: RISC-V: Limit the number of counters returned from SBI

Vincent Chen (3):
riscv: signal: Report signal frame size to userspace via auxv
riscv: kvm: Add V extension to KVM ISA
riscv: KVM: Add vector lazy save/restore support

Yangyu Chen (1):
riscv: allow case-insensitive ISA string parsing

Documentation/admin-guide/kernel-parameters.txt | 8 +-
Documentation/devicetree/bindings/riscv/cpus.yaml | 20 +-
Documentation/riscv/hwprobe.rst | 13 +
Documentation/riscv/index.rst | 1 +
Documentation/riscv/vector.rst | 132 ++++++++++
MAINTAINERS | 7 +
arch/riscv/Kconfig | 64 ++++-
arch/riscv/Makefile | 6 +-
arch/riscv/configs/defconfig | 1 +
arch/riscv/include/asm/acenv.h | 11 +
arch/riscv/include/asm/acpi.h | 84 +++++++
arch/riscv/include/asm/asm-extable.h | 6 +
arch/riscv/include/asm/cpu.h | 8 +
arch/riscv/include/asm/cpufeature.h | 10 +
arch/riscv/include/asm/csr.h | 18 +-
arch/riscv/include/asm/elf.h | 11 +-
arch/riscv/include/asm/extable.h | 4 +
arch/riscv/include/asm/hwcap.h | 9 +
arch/riscv/include/asm/insn.h | 29 +++
arch/riscv/include/asm/irq_stack.h | 30 +++
arch/riscv/include/asm/kvm_host.h | 2 +
arch/riscv/include/asm/kvm_vcpu_vector.h | 82 ++++++
arch/riscv/include/asm/processor.h | 14 ++
arch/riscv/include/asm/switch_to.h | 9 +-
arch/riscv/include/asm/thread_info.h | 17 +-
arch/riscv/include/asm/vector.h | 184 ++++++++++++++
arch/riscv/include/uapi/asm/auxvec.h | 1 +
arch/riscv/include/uapi/asm/hwcap.h | 1 +
arch/riscv/include/uapi/asm/hwprobe.h | 4 +
arch/riscv/include/uapi/asm/kvm.h | 8 +
arch/riscv/include/uapi/asm/ptrace.h | 39 +++
arch/riscv/include/uapi/asm/sigcontext.h | 16 +-
arch/riscv/kernel/Makefile | 2 +
arch/riscv/kernel/acpi.c | 251 +++++++++++++++++++
arch/riscv/kernel/cpu.c | 67 ++++-
arch/riscv/kernel/cpufeature.c | 222 +++++++++++++----
arch/riscv/kernel/entry.S | 8 +-
arch/riscv/kernel/head.S | 41 ++-
arch/riscv/kernel/hibernate-asm.S | 5 +-
arch/riscv/kernel/hibernate.c | 1 -
arch/riscv/kernel/irq.c | 68 +++++
arch/riscv/kernel/probes/uprobes.c | 2 +
arch/riscv/kernel/process.c | 20 ++
arch/riscv/kernel/ptrace.c | 70 ++++++
arch/riscv/kernel/setup.c | 14 +-
arch/riscv/kernel/signal.c | 220 +++++++++++++---
arch/riscv/kernel/smpboot.c | 86 ++++++-
arch/riscv/kernel/sys_riscv.c | 52 +++-
arch/riscv/kernel/time.c | 25 +-
arch/riscv/kernel/traps.c | 61 ++++-
arch/riscv/kernel/vdso/rt_sigreturn.S | 2 +-
arch/riscv/kernel/vector.c | 276 +++++++++++++++++++++
arch/riscv/kvm/Makefile | 1 +
arch/riscv/kvm/vcpu.c | 25 ++
arch/riscv/kvm/vcpu_vector.c | 186 ++++++++++++++
arch/riscv/mm/Makefile | 3 +-
arch/riscv/mm/fault.c | 49 ++--
arch/riscv/mm/init.c | 58 +++++
drivers/acpi/Makefile | 2 +
drivers/acpi/osl.c | 2 +-
drivers/acpi/processor_core.c | 29 +++
drivers/acpi/riscv/Makefile | 2 +
drivers/acpi/riscv/rhct.c | 83 +++++++
drivers/acpi/tables.c | 10 +
drivers/clocksource/timer-riscv.c | 92 ++++---
drivers/crypto/hisilicon/qm.c | 5 +
drivers/irqchip/irq-riscv-intc.c | 70 ++++--
drivers/perf/riscv_pmu_sbi.c | 23 +-
drivers/platform/surface/aggregator/Kconfig | 2 +-
include/uapi/linux/elf.h | 1 +
include/uapi/linux/prctl.h | 11 +
kernel/sys.c | 12 +
tools/testing/selftests/riscv/Makefile | 2 +-
tools/testing/selftests/riscv/hwprobe/.gitignore | 1 +
tools/testing/selftests/riscv/vector/.gitignore | 2 +
tools/testing/selftests/riscv/vector/Makefile | 15 ++
.../selftests/riscv/vector/vstate_exec_nolibc.c | 111 +++++++++
.../testing/selftests/riscv/vector/vstate_prctl.c | 189 ++++++++++++++
78 files changed, 3077 insertions(+), 251 deletions(-)
create mode 100644 Documentation/riscv/vector.rst
create mode 100644 arch/riscv/include/asm/acenv.h
create mode 100644 arch/riscv/include/asm/acpi.h
create mode 100644 arch/riscv/include/asm/cpu.h
create mode 100644 arch/riscv/include/asm/irq_stack.h
create mode 100644 arch/riscv/include/asm/kvm_vcpu_vector.h
create mode 100644 arch/riscv/include/asm/vector.h
create mode 100644 arch/riscv/kernel/acpi.c
create mode 100644 arch/riscv/kernel/vector.c
create mode 100644 arch/riscv/kvm/vcpu_vector.c
create mode 100644 drivers/acpi/riscv/Makefile
create mode 100644 drivers/acpi/riscv/rhct.c
create mode 100644 tools/testing/selftests/riscv/hwprobe/.gitignore
create mode 100644 tools/testing/selftests/riscv/vector/.gitignore
create mode 100644 tools/testing/selftests/riscv/vector/Makefile
create mode 100644 tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c
create mode 100644 tools/testing/selftests/riscv/vector/vstate_prctl.c

Next message: Yoann Congal: "[PATCH RFC] igb: Use TAI clock to reset PHC value"
Previous message: Richard Gobert: "Re: [PATCH v3 1/1] gro: decrease size of CB"
Next in thread: Linus Torvalds: "Re: [GIT PULL] RISC-V Patches for the 6.5 Merge Window, Part 1"
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