diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-16 09:41:54 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-16 09:41:54 -0700 |
commit | 8c05f3b965da14e7790711026b32cc10a4c06213 (patch) | |
tree | c799b01bddbbd029c7a07a7ef81fc6b474126707 /arch/arm/include/asm | |
parent | ab02888e39212af2d1dddc565cd67192548b9fd8 (diff) | |
parent | b752bb405a13f11b2db0a24d52da85cf7f8c0fea (diff) | |
download | linux-8c05f3b965da14e7790711026b32cc10a4c06213.tar.bz2 |
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King:
"ARM development updates:
- more unified assembly conversions for clang
- drop obsolete -mauto-it assembler option
- remove arm_memory_present in preference to the generic version
- remove unused asm/limits.h header
- vdso linker update
We tried to make the assembler warn if unified syntax was not used,
but unfortunately older versions of GCC warn, so the commit had to be
reverted"
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
Revert "ARM: 8846/1: warn if divided syntax assembler is used"
ARM: 8858/1: vdso: use $(LD) instead of $(CC) to link VDSO
ARM: 8855/1: remove unused <asm/limits.h>
ARM: 8850/1: use memblocks_present
ARM: 8854/1: drop -mauto-it
ARM: 8846/1: warn if divided syntax assembler is used
ARM: 8853/1: drop WASM to work around LLVM issue
ARM: 8852/1: uaccess: use unified assembler language syntax
ARM: 8851/1: add TUSERCOND() macro for conditional postfix
Diffstat (limited to 'arch/arm/include/asm')
-rw-r--r-- | arch/arm/include/asm/domain.h | 6 | ||||
-rw-r--r-- | arch/arm/include/asm/futex.h | 3 | ||||
-rw-r--r-- | arch/arm/include/asm/limits.h | 12 | ||||
-rw-r--r-- | arch/arm/include/asm/processor.h | 4 | ||||
-rw-r--r-- | arch/arm/include/asm/uaccess.h | 3 |
5 files changed, 10 insertions, 18 deletions
diff --git a/arch/arm/include/asm/domain.h b/arch/arm/include/asm/domain.h index 99d9f630d6b6..1888c2d15da5 100644 --- a/arch/arm/include/asm/domain.h +++ b/arch/arm/include/asm/domain.h @@ -133,9 +133,11 @@ static inline void modify_domain(unsigned dom, unsigned type) { } * instructions (inline assembly) */ #ifdef CONFIG_CPU_USE_DOMAINS -#define TUSER(instr) #instr "t" +#define TUSER(instr) TUSERCOND(instr, ) +#define TUSERCOND(instr, cond) #instr "t" #cond #else -#define TUSER(instr) #instr +#define TUSER(instr) TUSERCOND(instr, ) +#define TUSERCOND(instr, cond) #instr #cond #endif #else /* __ASSEMBLY__ */ diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h index 0a46676b4245..83c391b597d4 100644 --- a/arch/arm/include/asm/futex.h +++ b/arch/arm/include/asm/futex.h @@ -110,10 +110,11 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, preempt_disable(); __ua_flags = uaccess_save_and_enable(); __asm__ __volatile__("@futex_atomic_cmpxchg_inatomic\n" + " .syntax unified\n" "1: " TUSER(ldr) " %1, [%4]\n" " teq %1, %2\n" " it eq @ explicit IT needed for the 2b label\n" - "2: " TUSER(streq) " %3, [%4]\n" + "2: " TUSERCOND(str, eq) " %3, [%4]\n" __futex_atomic_ex_table("%5") : "+r" (ret), "=&r" (val) : "r" (oldval), "r" (newval), "r" (uaddr), "Ir" (-EFAULT) diff --git a/arch/arm/include/asm/limits.h b/arch/arm/include/asm/limits.h deleted file mode 100644 index ab159371d786..000000000000 --- a/arch/arm/include/asm/limits.h +++ /dev/null @@ -1,12 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_PIPE_H -#define __ASM_PIPE_H - -#ifndef PAGE_SIZE -#include <asm/page.h> -#endif - -#define PIPE_BUF PAGE_SIZE - -#endif - diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h index 57fe73ea0f72..5d06f75ffad4 100644 --- a/arch/arm/include/asm/processor.h +++ b/arch/arm/include/asm/processor.h @@ -135,8 +135,8 @@ static inline void prefetchw(const void *ptr) __asm__ __volatile__( ".arch_extension mp\n" __ALT_SMP_ASM( - WASM(pldw) "\t%a0", - WASM(pld) "\t%a0" + "pldw\t%a0", + "pld\t%a0" ) :: "p" (ptr)); } diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h index dff49845eb87..d49ce8f48be3 100644 --- a/arch/arm/include/asm/uaccess.h +++ b/arch/arm/include/asm/uaccess.h @@ -112,10 +112,11 @@ static inline void __user *__uaccess_mask_range_ptr(const void __user *ptr, unsigned long tmp; asm volatile( + " .syntax unified\n" " sub %1, %3, #1\n" " subs %1, %1, %0\n" " addhs %1, %1, #1\n" - " subhss %1, %1, %2\n" + " subshs %1, %1, %2\n" " movlo %0, #0\n" : "+r" (safe_ptr), "=&r" (tmp) : "r" (size), "r" (current_thread_info()->addr_limit) |