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linux-stable/arch/arc/include/asm
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Alexandre Ghiti 7a92fc8b4d mm: Introduce flush_cache_vmap_early() 
The pcpu setup when using the page allocator sets up a new vmalloc
mapping very early in the boot process, so early that it cannot use the
flush_cache_vmap() function which may depend on structures not yet
initialized (for example in riscv, we currently send an IPI to flush
other cpus TLB).

But on some architectures, we must call flush_cache_vmap(): for example,
in riscv, some uarchs can cache invalid TLB entries so we need to flush
the new established mapping to avoid taking an exception.

So fix this by introducing a new function flush_cache_vmap_early() which
is called right after setting the new page table entry and before
accessing this new mapping. This new function implements a local flush
tlb on riscv and is no-op for other architectures (same as today).

Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Dennis Zhou <dennis@kernel.org>
 		2023-12-14 00:23:17 -08:00
..
Kbuild local64.h: make <asm/local64.h> mandatory 2020-12-29 15:36:49 -08:00
arcregs.h ARC: boot log: eliminate struct cpuinfo_arc #4: boot log per ISA 2023-08-17 20:31:59 -07:00
asm-offsets.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
asserts.h ARC: allow userspace DSP applications to use AGU extensions 2020-03-16 10:30:49 -07:00
atomic-llsc.h ARC: atomics: Add compiler barrier to atomic operations... 2023-08-15 17:27:26 -07:00
atomic-spinlock.h locking/atomic: arc: add preprocessor symbols 2023-06-05 09:57:14 +02:00
atomic.h locking/atomic: make atomic*_{cmp,}xchg optional 2023-06-05 09:57:14 +02:00
atomic64-arcv2.h ARC: atomics: Add compiler barrier to atomic operations... 2023-08-15 17:27:26 -07:00
barrier.h ARC: [plat-eznps]: Drop support for EZChip NPS platform 2020-10-05 21:02:29 -07:00
bitops.h ARC: bitops: Change __fls to return unsigned long 2022-10-17 16:32:12 -07:00
bug.h arc: add show_stack_loglvl() 2020-06-09 09:39:10 -07:00
cache.h ARC: mm: move mmu/cache externs out to setup.h 2021-08-24 14:25:48 -07:00
cacheflush.h mm: Introduce flush_cache_vmap_early() 2023-12-14 00:23:17 -08:00
checksum.h arc: Prefer unsigned int to bare use of unsigned 2021-08-03 18:58:33 -07:00
cmpxchg.h locking/arch: Rename all internal __xchg() names to __arch_xchg() 2023-04-29 09:08:44 +02:00
current.h ARC: entry: use gp to cache task pointer (vs. r25) 2023-08-17 20:31:59 -07:00
delay.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
disasm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
dma.h PCI: Move isa_dma_bridge_buggy out of asm/dma.h 2022-07-22 17:24:47 -05:00
dsp-impl.h ARC: guard dsp early init against non ARCv2 2020-04-29 11:53:51 -07:00
dsp.h ARC: allow userspace DSP applications to use AGU extensions 2020-03-16 10:30:49 -07:00
dwarf.h ARC: __switch_to: asm with dwarf ops (vs. inline asm) 2023-08-17 20:31:59 -07:00
elf.h ARC: elf: use right ELF_ARCH 2020-06-16 12:56:37 -07:00
entry-arcv2.h ARCv2: entry: rearrange pt_regs slightly 2023-08-18 10:30:47 -07:00
entry-compact.h ARC: entry: Add more common chores to EXCEPTION_PROLOGUE 2023-08-18 10:30:07 -07:00
entry.h ARC: entry: use gp to cache task pointer (vs. r25) 2023-08-17 20:31:59 -07:00
exec.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
fb.h arch/arc: Implement <asm/fb.h> with generic helpers 2023-04-20 10:04:19 +02:00
fpu.h ARC: fpu: fix randconfig build error reported by 0-day test service 2020-02-09 22:17:22 -08:00
futex.h futex: arch_futex_atomic_op_inuser() calling conventions change 2020-03-27 23:58:51 -04:00
highmem.h arc/mm/highmem: Use generic kmap atomic implementation 2020-11-06 23:14:55 +01:00
hugepage.h mm: Rename arch pte_mkwrite()'s to pte_mkwrite_novma() 2023-07-11 14:10:56 -07:00
io.h arc: mm: convert to GENERIC_IOREMAP 2023-08-18 10:12:33 -07:00
irq.h ARC: -Wmissing-prototype warning fixes 2023-08-13 16:53:02 -07:00
irqflags-arcv2.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
irqflags-compact.h arc: Replace lkml.org links with lore 2021-12-28 19:48:49 -08:00
irqflags.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
jump_label.h ARC: ARCv2: jump label: implement jump label patching 2019-11-08 16:14:32 -08:00
kdebug.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
kgdb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
kprobes.h kprobes: unify kprobes_exceptions_nofify() prototypes 2023-11-10 19:59:05 +09:00
linkage.h ARC: define ASM_NL and __ALIGN(_STR) outside #ifdef __ASSEMBLY__ guard 2023-06-15 04:47:05 +09:00
mach_desc.h treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
mmu-arcv2.h ARC: mm: disintegrate mmu.h (arcv2 bits out) 2021-08-25 15:53:19 -07:00
mmu.h ARC: -Wmissing-prototype warning fixes 2023-08-13 16:53:02 -07:00
mmu_context.h ARC: mm: move MMU specific bits out of ASID allocator 2021-08-24 14:25:48 -07:00
module.h arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
page.h csky: Cast argument to virt_to_pfn() to (void *) 2023-08-10 22:12:33 -04:00
pci.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
perf_event.h ARC: bpf: define uapi for BPF_PROG_TYPE_PERF_EVENT program type 2022-04-26 09:35:28 -07:00
pgalloc.h ARC: mm: support 4 levels of page tables 2021-08-26 13:43:19 -07:00
pgtable-bits-arcv2.h Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
pgtable-levels.h arc: implement the new page table range API 2023-08-24 16:20:20 -07:00
pgtable.h ARC: fix potential build snafu 2021-10-15 18:06:32 -07:00
processor.h ARC: __switch_to: move ksp to thread_info from thread_struct 2023-08-17 20:31:59 -07:00
ptrace.h ARC: pt_regs: create seperate type for ecr 2023-08-18 10:30:47 -07:00
sections.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
serial.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
setup.h ARC: boot log: eliminate struct cpuinfo_arc #4: boot log per ISA 2023-08-17 20:31:59 -07:00
shmparam.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
smp.h ARC: -Wmissing-prototype warning fixes 2023-08-13 16:53:02 -07:00
spinlock.h ARC: [plat-eznps]: Drop support for EZChip NPS platform 2020-10-05 21:02:29 -07:00
spinlock_types.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
stacktrace.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
string.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
switch_to.h ARC: [plat-eznps]: Drop support for EZChip NPS platform 2020-10-05 21:02:29 -07:00
syscall.h ARC: implement syscall tracepoints 2022-04-25 13:09:47 -07:00
syscalls.h ARC: wireup clone3 syscall 2020-01-15 16:08:12 -08:00
thread_info.h ARC: __switch_to: move ksp to thread_info from thread_struct 2023-08-17 20:31:59 -07:00
timex.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
tlb.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
tlbflush.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
uaccess.h ARC: uaccess: elide unaliged handling if hardware supports 2023-08-17 12:40:26 -07:00
unaligned.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
unwind.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
vermagic.h arch: split MODULE_ARCH_VERMAGIC definitions out to <asm/vermagic.h> 2020-04-23 10:50:26 +09:00
vmalloc.h mm/vmalloc: Add empty <asm/vmalloc.h> headers and use them from <linux/vmalloc.h> 2019-12-10 10:12:55 +01:00