diff options
Diffstat (limited to 'arch/arm/include/asm/assembler.h')
| -rw-r--r-- | arch/arm/include/asm/assembler.h | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h index 90fbe4a3f9c8..d33c1e24e00b 100644 --- a/arch/arm/include/asm/assembler.h +++ b/arch/arm/include/asm/assembler.h @@ -21,6 +21,7 @@ #include <asm/opcodes-virt.h> #include <asm/asm-offsets.h> #include <asm/page.h> +#include <asm/pgtable.h> #include <asm/thread_info.h> #include <asm/uaccess-asm.h> @@ -236,20 +237,12 @@ THUMB( fpreg .req r7 ) sub \tmp, \tmp, #1 @ decrement it str \tmp, [\ti, #TI_PREEMPT] .endm - - .macro dec_preempt_count_ti, ti, tmp - get_thread_info \ti - dec_preempt_count \ti, \tmp - .endm #else .macro inc_preempt_count, ti, tmp .endm .macro dec_preempt_count, ti, tmp .endm - - .macro dec_preempt_count_ti, ti, tmp - .endm #endif #define USERL(l, x...) \ @@ -402,6 +395,23 @@ ALT_UP_B(.L0_\@) #endif .endm +/* + * Raw SMP data memory barrier + */ + .macro __smp_dmb mode +#if __LINUX_ARM_ARCH__ >= 7 + .ifeqs "\mode","arm" + dmb ish + .else + W(dmb) ish + .endif +#elif __LINUX_ARM_ARCH__ == 6 + mcr p15, 0, r0, c7, c10, 5 @ dmb +#else + .error "Incompatible SMP platform" +#endif + .endm + #if defined(CONFIG_CPU_V7M) /* * setmode is used to assert to be in svc mode during boot. For v7-M @@ -761,6 +771,12 @@ THUMB( orr \reg , \reg , #PSR_T_BIT ) .endif .endm + .if __LINUX_ARM_ARCH__ < 6 + .set .Lrev_l_uses_tmp, 1 + .else + .set .Lrev_l_uses_tmp, 0 + .endif + /* * bl_r - branch and link to register * |