diff options
Diffstat (limited to 'arch/arm/include/asm')
| -rw-r--r-- | arch/arm/include/asm/assembler.h | 19 | ||||
| -rw-r--r-- | arch/arm/include/asm/simd.h | 8 |
2 files changed, 20 insertions, 7 deletions
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h index 28e18f79c300..06b48ce23e1c 100644 --- a/arch/arm/include/asm/assembler.h +++ b/arch/arm/include/asm/assembler.h @@ -236,21 +236,26 @@ 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 +#endif + + .macro local_bh_disable, ti, tmp + ldr \tmp, [\ti, #TI_PREEMPT] + add \tmp, \tmp, #SOFTIRQ_DISABLE_OFFSET + str \tmp, [\ti, #TI_PREEMPT] + .endm - .macro dec_preempt_count_ti, ti, tmp + .macro local_bh_enable_ti, ti, tmp + get_thread_info \ti + ldr \tmp, [\ti, #TI_PREEMPT] + sub \tmp, \tmp, #SOFTIRQ_DISABLE_OFFSET + str \tmp, [\ti, #TI_PREEMPT] .endm -#endif #define USERL(l, x...) \ 9999: x; \ diff --git a/arch/arm/include/asm/simd.h b/arch/arm/include/asm/simd.h new file mode 100644 index 000000000000..82191dbd7e78 --- /dev/null +++ b/arch/arm/include/asm/simd.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#include <linux/hardirq.h> + +static __must_check inline bool may_use_simd(void) +{ + return IS_ENABLED(CONFIG_KERNEL_MODE_NEON) && !in_hardirq(); +} |