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commit c38239b4be1ac7e4bcf5bbd971353bae51525b8f
parent 57dbde63f2888af1be5111d369d124f4e659c0f8
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Mon, 29 Oct 2018 15:02:40 -0700

Merge branch 'parisc-4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

Pull parisc updates from Helge Deller:
 "Three small patches:

   - A boot fix for A500 machines, crash was caused by the new
     alternative patching code from this merge window (Dave)

   - Change __kernel_suseconds_t to match glibc on 64-bit parisc (Arnd)

   - Use constants instead of hard-coded numbers (me)"

* 'parisc-4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Fix A500 boot crash
  parisc: Use LINUX_GATEWAY_SPACE constant in entry.S
  parisc64: change __kernel_suseconds_t to match glibc

Diffstat:
March/parisc/include/uapi/asm/posix_types.h | 3---
March/parisc/kernel/entry.S | 5+++--
March/parisc/mm/init.c | 10++++------
3 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/arch/parisc/include/uapi/asm/posix_types.h b/arch/parisc/include/uapi/asm/posix_types.h @@ -16,9 +16,6 @@ typedef unsigned short __kernel_mode_t; typedef unsigned short __kernel_ipc_pid_t; #define __kernel_ipc_pid_t __kernel_ipc_pid_t -typedef int __kernel_suseconds_t; -#define __kernel_suseconds_t __kernel_suseconds_t - typedef long long __kernel_off64_t; typedef unsigned long long __kernel_ino64_t; diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S @@ -394,6 +394,7 @@ */ .macro space_check spc,tmp,fault mfsp %sr7,\tmp + /* check against %r0 which is same value as LINUX_GATEWAY_SPACE */ or,COND(<>) %r0,\spc,%r0 /* user may execute gateway page * as kernel, so defeat the space * check if it is */ @@ -910,9 +911,9 @@ intr_check_sig: * Only do signals if we are returning to user space */ LDREG PT_IASQ0(%r16), %r20 - cmpib,COND(=),n 0,%r20,intr_restore /* backward */ + cmpib,COND(=),n LINUX_GATEWAY_SPACE, %r20, intr_restore /* backward */ LDREG PT_IASQ1(%r16), %r20 - cmpib,COND(=),n 0,%r20,intr_restore /* backward */ + cmpib,COND(=),n LINUX_GATEWAY_SPACE, %r20, intr_restore /* backward */ /* NOTE: We need to enable interrupts if we have to deliver * signals. We used to do this earlier but it caused kernel diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c @@ -513,17 +513,15 @@ static void __init map_pages(unsigned long start_vaddr, void __init set_kernel_text_rw(int enable_read_write) { - unsigned long start = (unsigned long)_stext; + unsigned long start = (unsigned long)__init_begin; unsigned long end = (unsigned long)_etext; map_pages(start, __pa(start), end-start, PAGE_KERNEL_RWX, enable_read_write ? 1:0); - /* force the kernel to see the new TLB entries */ - __flush_tlb_range(0, start, end); - - /* dump old cached instructions */ - flush_icache_range(start, end); + /* force the kernel to see the new page table entries */ + flush_cache_all(); + flush_tlb_all(); } void __ref free_initmem(void)