[GIT PULL] RISC-V Patches for the 6.7 Merge Window, Part 1
Palmer Dabbelt
palmer at rivosinc.com
Mon Nov 6 07:13:47 PST 2023
The following changes since commit 8eb8fe67e2c84324398f5983c41b4f831d0705b3:
riscv: errata: fix T-Head dcache.cva encoding (2023-09-12 13:58:40 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-6.7-rc1
for you to fetch changes up to e1c05b3bf80f829ced464bdca90f1dfa96e8d251:
RISC-V: hwprobe: Fix vDSO SIGSEGV (2023-11-02 14:05:30 -0700)
----------------------------------------------------------------
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.
----------------------------------------------------------------
I have two manually resolved merge conflicts. There's one in csr.h, which is
just a list of CSR numbers. There's also one in irq.c, which is the result of
a fix conflicting with some new functionality. Here's my resolution, see
07a27665754b ("RISC-V: Fix wrong use of CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK"):
--- a/arch/riscv/kernel/irq.c
+++ b/arch/riscv/kernel/irq.c
@@@ -60,41 -79,23 +79,23 @@@ static void init_irq_stacks(void
}
#endif /* CONFIG_VMAP_STACK */
-#ifdef CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK
+#ifdef CONFIG_SOFTIRQ_ON_OWN_STACK
+ static void ___do_softirq(struct pt_regs *regs)
+ {
+ __do_softirq();
+ }
I'll almost certainly have more for later this week, there's already some on
for-next that I wanted to give a little more time for testing.
----------------------------------------------------------------
Andrew Jones (7):
RISC-V: Make zicbom/zicboz errors consistent
RISC-V: Enable cbo.zero in usermode
RISC-V: hwprobe: Expose Zicboz extension and its block size
RISC-V: selftests: Statically link hwprobe test
RISC-V: selftests: Convert hwprobe test to kselftest API
RISC-V: selftests: Add CBO tests
RISC-V: hwprobe: Fix vDSO SIGSEGV
Anup Patel (2):
clocksource: timer-riscv: Don't enable/disable timer interrupt
clocksource: timer-riscv: Increase rating of clock_event_device for Sstc
Deepak Gupta (1):
riscv: VMAP_STACK overflow detection thread-safe
Icenowy Zheng (1):
riscv: errata: prefix T-Head mnemonics with th.
Lad Prabhakar (1):
riscv: configs: defconfig: Enable configs required for RZ/Five SoC
Minda Chen (1):
riscv: Using TOOLCHAIN_HAS_ZIHINTPAUSE marco replace zihintpause
Nam Cao (1):
riscv: put interrupt entries into .irqentry.text
Palmer Dabbelt (6):
Merge patch series "riscv: kexec: cleanup and fixups"
Merge patch series "RISC-V: Enable cbo.zero in usermode"
RISC-V: Provide pgtable_l5_enabled on rv32
Merge patch series "RISC-V: ACPI improvements"
Merge patch "riscv: errata: improve T-Head CMO"
Merge patch series "riscv: SCS support"
Sami Tolvanen (5):
riscv: Deduplicate IRQ stack switching
riscv: Move global pointer loading to a macro
riscv: Implement Shadow Call Stack
riscv: Use separate IRQ shadow call stacks
lkdtm: Fix CFI_BACKWARD on RISC-V
Song Shuai (5):
riscv: kexec: Cleanup riscv_kexec_relocate
riscv: kexec: Align the kexeced kernel entry
riscv: kexec: Remove -fPIE for PURGATORY_CFLAGS
riscv: correct pt_level name via pgtable_l5/4_enabled
riscv: mm: Update the comment of CONFIG_PAGE_OFFSET
Sunil V L (4):
RISC-V: ACPI: Enhance acpi_os_ioremap with MMIO remapping
RISC-V: ACPI: Update the return value of acpi_get_rhct()
RISC-V: ACPI: RHCT: Add function to get CBO block sizes
RISC-V: cacheflush: Initialize CBO variables on ACPI systems
Tsukasa OI (1):
RISC-V: clarify the QEMU workaround in ISA parser
Xiao Wang (1):
riscv/mm: Fix the comment for swap pte format
Documentation/riscv/hwprobe.rst | 6 +
arch/riscv/Kconfig | 7 +
arch/riscv/Makefile | 4 +
arch/riscv/configs/defconfig | 52 ++++++
arch/riscv/include/asm/acpi.h | 6 +
arch/riscv/include/asm/asm-prototypes.h | 1 -
arch/riscv/include/asm/asm.h | 41 +++++
arch/riscv/include/asm/cpufeature.h | 1 +
arch/riscv/include/asm/csr.h | 1 +
arch/riscv/include/asm/errata_list.h | 14 +-
arch/riscv/include/asm/hwcap.h | 16 ++
arch/riscv/include/asm/hwprobe.h | 7 +-
arch/riscv/include/asm/irq_stack.h | 3 +
arch/riscv/include/asm/page.h | 4 +-
arch/riscv/include/asm/pgtable-32.h | 3 +
arch/riscv/include/asm/pgtable.h | 3 +-
arch/riscv/include/asm/scs.h | 54 ++++++
arch/riscv/include/asm/thread_info.h | 16 +-
arch/riscv/include/asm/vdso/processor.h | 2 +-
arch/riscv/include/uapi/asm/hwprobe.h | 2 +
arch/riscv/kernel/acpi.c | 87 ++++++++-
arch/riscv/kernel/asm-offsets.c | 9 +
arch/riscv/kernel/cpufeature.c | 17 +-
arch/riscv/kernel/entry.S | 126 +++++++------
arch/riscv/kernel/head.S | 19 +-
arch/riscv/kernel/irq.c | 56 +++---
arch/riscv/kernel/kexec_relocate.S | 52 +++---
arch/riscv/kernel/setup.c | 4 +
arch/riscv/kernel/smpboot.c | 4 +
arch/riscv/kernel/suspend_entry.S | 5 +-
arch/riscv/kernel/sys_riscv.c | 46 +++--
arch/riscv/kernel/traps.c | 68 +------
arch/riscv/kernel/vdso/Makefile | 2 +-
arch/riscv/kernel/vdso/hwprobe.c | 2 +-
arch/riscv/mm/cacheflush.c | 25 ++-
arch/riscv/mm/init.c | 2 +
arch/riscv/mm/ptdump.c | 3 +
arch/riscv/purgatory/Makefile | 8 +
drivers/acpi/riscv/rhct.c | 93 +++++++++-
drivers/clocksource/timer-riscv.c | 17 +-
drivers/misc/lkdtm/cfi.c | 13 +-
tools/testing/selftests/riscv/hwprobe/Makefile | 9 +-
tools/testing/selftests/riscv/hwprobe/cbo.c | 228 ++++++++++++++++++++++++
tools/testing/selftests/riscv/hwprobe/hwprobe.c | 64 +++----
tools/testing/selftests/riscv/hwprobe/hwprobe.h | 15 ++
45 files changed, 919 insertions(+), 298 deletions(-)
create mode 100644 arch/riscv/include/asm/scs.h
create mode 100644 tools/testing/selftests/riscv/hwprobe/cbo.c
create mode 100644 tools/testing/selftests/riscv/hwprobe/hwprobe.h
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