linux-stable/arch/riscv/kernel
Palmer Dabbelt eb077c9c38
RISC-V: Skip setting up PMPs on traps
The RISC-V ISA manual says that PMPs are WARL, but it appears the K210
doesn't implement them and instead traps on the unsupported accesses.
This patch handles those traps by just skipping the PMP
initialization entirely, under the theory that machines that trap on PMP
accesses must allow memory accesses as otherwise they're pretty useless.

Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-05-18 11:38:08 -07:00
..
vdso riscv: add Linux note to vdso 2020-05-04 14:22:34 -07:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
Makefile riscv: perf: RISCV_BASE_PMU should be independent 2020-05-12 16:21:46 -07:00
asm-offsets.c riscv: abstract out CSR names for supervisor vs machine mode 2019-11-05 09:20:42 -08:00
cacheinfo.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286 2019-06-05 17:36:37 +02:00
clint.c riscv: provide native clint access for M-mode 2019-11-17 15:17:39 -08:00
cpu-hotplug.c RISC-V: Support cpu hotplug 2020-03-31 11:28:30 -07:00
cpu.c RISC-V: Remove unsupported isa string info print 2019-10-28 11:13:59 -07:00
cpu_ops.c riscv: force __cpu_up_ variables to put in data section 2020-05-04 15:03:25 -07:00
cpu_ops_sbi.c RISC-V: Support cpu hotplug 2020-03-31 11:28:30 -07:00
cpu_ops_spinwait.c RISC-V: Add cpu_ops and modify default booting method 2020-03-31 11:25:56 -07:00
cpufeature.c RISC-V: Add bitmap reprensenting ISA features common across CPUs 2020-05-04 14:08:59 -07:00
entry.S RISC-V Patches for the 5.7 Merge Window, Part 1 2020-04-09 10:51:30 -07:00
fpu.S riscv: abstract out CSR names for supervisor vs machine mode 2019-11-05 09:20:42 -08:00
ftrace.c riscv: patch code by fixmap mapping 2020-03-26 09:24:55 -07:00
head.S RISC-V: Skip setting up PMPs on traps 2020-05-18 11:38:08 -07:00
head.h riscv: add prototypes for assembly language functions from head.S 2019-10-28 00:46:00 -07:00
irq.c riscv: prefix IRQ_ macro names with an RV_ namespace 2020-01-04 21:48:59 -08:00
mcount-dyn.S riscv/ftrace: Add DYNAMIC_FTRACE_WITH_REGS support 2018-04-02 19:59:13 -07:00
mcount.S RISC-V: remove the unused return_to_handler export 2018-10-22 17:38:12 -07:00
module-sections.c riscv: add missing header file includes 2019-10-28 00:46:01 -07:00
module.c riscv: avoid the PIC offset of static percpu data in module beyond 2G limits 2020-03-03 10:27:45 -08:00
module.lds RISC-V: Add section of GOT.PLT for kernel module 2018-04-02 20:00:54 -07:00
patch.c riscv: introduce interfaces to patch kernel code 2020-03-26 09:24:52 -07:00
perf_callchain.c riscv: abstract out CSR names for supervisor vs machine mode 2019-11-05 09:20:42 -08:00
perf_event.c riscv: perf_event: Make some funciton static 2020-05-11 13:48:19 -07:00
perf_regs.c riscv: Add support for perf registers sampling 2019-09-05 00:48:58 -07:00
process.c RISC-V: Stop relying on GCC's register allocator's hueristics 2020-03-03 10:28:13 -08:00
ptrace.c riscv: fix seccomp reject syscall code path 2020-03-05 13:58:15 -08:00
reset.c riscv: cleanup the default power off implementation 2019-11-13 13:22:52 -08:00
riscv_ksyms.c riscv: Add KASAN support 2020-01-22 13:09:58 -08:00
sbi.c riscv: sbi: Fix undefined reference to sbi_shutdown 2020-04-21 16:15:09 -07:00
setup.c riscv: Allow device trees to be built into the kernel 2020-05-18 11:38:05 -07:00
signal.c riscv: add nommu support 2019-11-17 15:17:39 -08:00
smp.c RISC-V: Export riscv_cpuid_to_hartid_mask() API 2020-05-04 14:08:58 -07:00
smpboot.c RISC-V: Add supported for ordered booting method using HSM 2020-03-31 11:27:50 -07:00
soc.c riscv: Allow device trees to be built into the kernel 2020-05-18 11:38:05 -07:00
stacktrace.c riscv: stacktrace: Fix undefined reference to `walk_stackframe' 2020-05-12 17:04:25 -07:00
sys_riscv.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286 2019-06-05 17:36:37 +02:00
syscall_table.c riscv: add missing header file includes 2019-10-28 00:46:01 -07:00
time.c riscv: add missing header file includes 2019-10-28 00:46:01 -07:00
traps.c RISC-V Patches for the 5.7 Merge Window, Part 1 2020-04-09 10:51:30 -07:00
traps_misaligned.c riscv: Unaligned load/store handling for M_MODE 2020-04-03 10:45:33 -07:00
vdso.c riscv: add missing header file includes 2019-10-28 00:46:01 -07:00
vmlinux.lds.S riscv: Allow device trees to be built into the kernel 2020-05-18 11:38:05 -07:00