Jisheng ZhangandGreg Kroah-Hartman b649a7fe9a riscv: don't probe unaligned access speed if already done ...

[ Upstream commit c20d36cc2a ]

If misaligned_access_speed percpu var isn't so called "HWPROBE
MISALIGNED UNKNOWN", it means the probe has happened(this is possible
for example, hotplug off then hotplug on one cpu), and the percpu var
has been set, don't probe again in this case.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Fixes: 584ea6564b ("RISC-V: Probe for unaligned access speed")
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230912154040.3306-1-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-01-10 17:16:56 +01:00

..

compat_vdso

riscv: Handle zicsr/zifencei issue between gcc and binutils

2023-08-16 07:39:38 -07:00

pi

riscv: Introduce virtual kernel mapping KASLR

2023-09-05 19:49:27 -07:00

probes

riscv: kprobes: allow writing to x0

2023-11-28 17:20:13 +00:00

vdso

RISC-V: hwprobe: Fix vDSO SIGSEGV

2023-11-28 17:19:49 +00:00

.gitignore

…

acpi.c

RISC-V: ACPI: Fix acpi_os_ioremap to return iomem address

2023-08-02 13:49:43 -07:00

alternative.c

Merge patch series "Add non-coherent DMA support for AX45MP"

2023-09-08 11:24:34 -07:00

asm-offsets.c

riscv: VMAP_STACK overflow detection thread-safe

2023-11-28 17:19:47 +00:00

cacheinfo.c

…

cfi.c

riscv: Add CFI error handling

2023-08-23 14:16:39 -07:00

compat_signal.c

…

compat_syscall_table.c

riscv: Implement syscall wrappers

2023-08-23 14:16:36 -07:00

copy-unaligned.h

RISC-V: Probe for unaligned access speed

2023-09-01 09:06:25 -07:00

copy-unaligned.S

RISC-V: Probe for unaligned access speed

2023-09-01 09:06:25 -07:00

cpu_ops_sbi.c

…

cpu_ops_spinwait.c

…

cpu_ops.c

RISC-V: Align SBI probe implementation with spec

2023-04-29 13:04:50 -07:00

cpu-hotplug.c

riscv: Switch to hotplug core state synchronization

2023-05-15 13:44:59 +02:00

cpu.c

RISC-V: Don't fail in riscv_of_parent_hartid() for disabled HARTs

2023-11-20 11:59:37 +01:00

cpufeature.c

riscv: don't probe unaligned access speed if already done

2024-01-10 17:16:56 +01:00

crash_core.c

kexec: drop dependency on ARCH_SUPPORTS_KEXEC from CRASH_DUMP

2023-12-20 17:02:03 +01:00

crash_dump.c

…

crash_save_regs.S

…

efi-header.S

…

efi.c

…

elf_kexec.c

riscv: kexec: Align the kexeced kernel entry

2023-09-12 13:58:39 -07:00

entry.S

riscv: put interrupt entries into .irqentry.text

2023-11-28 17:20:13 +00:00

fpu.S

…

ftrace.c

…

head.h

…

head.S

riscv: remove redundant mv instructions

2023-08-31 00:18:25 -07:00

hibernate-asm.S

riscv: hibernation: Remove duplicate call of suspend_restore_csrs

2023-06-19 09:27:57 -07:00

hibernate.c

riscv: hibernate: remove WARN_ON in save_processor_state

2023-06-23 10:06:22 -07:00

image-vars.h

riscv: libstub: Implement KASLR by using generic functions

2023-09-05 19:49:31 -07:00

irq.c

RISC-V: Fix wrong use of CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK

2023-10-12 11:34:16 -07:00

jump_label.c

…

kexec_relocate.S

…

kgdb.c

…

machine_kexec_file.c

…

machine_kexec.c

…

Makefile

Merge patch series "RISC-V: Probe for misaligned access speed"

2023-09-08 11:24:12 -07:00

mcount-dyn.S

…

mcount.S

riscv: Add ftrace_stub_graph

2023-08-23 14:16:38 -07:00

module-sections.c

…

module.c

…

patch.c

riscv: implement a memset like function for text

2023-09-06 06:26:06 -07:00

perf_callchain.c

…

perf_regs.c

…

process.c

riscv: Add prctl controls for userspace vector management

2023-06-08 07:16:53 -07:00

ptrace.c

RISC-V: Add ptrace support for vectors

2023-09-01 13:05:38 -07:00

reset.c

…

riscv_ksyms.c

…

sbi-ipi.c

…

sbi.c

RISC-V: Align SBI probe implementation with spec

2023-04-29 13:04:50 -07:00

setup.c

riscv: kdump: fix crashkernel reserving problem on RISC-V

2023-10-12 11:34:09 -07:00

signal.c

riscv: signal: fix sigaltstack frame size checking

2023-10-12 05:38:40 -07:00

smp.c

riscv: Fix CPU feature detection with SMP disabled

2023-08-08 15:28:25 -07:00

smpboot.c

RISC-V: alternative: Remove feature_probe_func

2023-09-01 09:06:26 -07:00

soc.c

…

stacktrace.c

…

suspend_entry.S

riscv: Add types to indirectly called assembly functions

2023-08-23 14:16:37 -07:00

suspend.c

…

sys_riscv.c

riscv: Implement syscall wrappers

2023-08-23 14:16:36 -07:00

syscall_table.c

riscv: Implement syscall wrappers

2023-08-23 14:16:36 -07:00

time.c

RISC-V: time.c: Add ACPI support for time_init()

2023-06-01 08:45:13 -07:00

traps_misaligned.c

riscv: fix misaligned access handling of C.SWSP and C.SDSP

2023-12-13 18:45:19 +01:00

traps.c

riscv: VMAP_STACK overflow detection thread-safe

2023-11-28 17:19:47 +00:00

vdso.c

riscv: vdso: include vdso/vsyscall.h for vdso_data

2023-07-04 07:54:41 -07:00

vector.c

riscv: vector: clear V-reg in the first-use trap

2023-07-01 07:38:21 -07:00

vmlinux-xip.lds.S

riscv: vmlinux-xip.lds.S: remove .alternative section

2023-06-25 16:24:03 -07:00

vmlinux.lds.S

riscv: enable HAVE_LD_DEAD_CODE_DATA_ELIMINATION

2023-06-25 16:24:05 -07:00