From 318893096ba2474c83cfd7b4f8ba4cb163b53430 Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Sun, 7 Oct 2018 00:19:14 +0200 Subject: compat: make asm/simd.h conditional on its existence Android kernels backported it, complicating things. Signed-off-by: Jason A. Donenfeld --- src/compat/simd-asm/include/asm/simd.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 src/compat/simd-asm/include/asm/simd.h (limited to 'src/compat/simd-asm/include/asm') diff --git a/src/compat/simd-asm/include/asm/simd.h b/src/compat/simd-asm/include/asm/simd.h new file mode 100644 index 0000000..a975b38 --- /dev/null +++ b/src/compat/simd-asm/include/asm/simd.h @@ -0,0 +1,21 @@ +#ifndef _COMPAT_ASM_SIMD_H +#define _COMPAT_ASM_SIMD_H + +#if defined(CONFIG_X86_64) +#include +#endif + +static __must_check inline bool may_use_simd(void) +{ +#if defined(CONFIG_X86_64) + return irq_fpu_usable(); +#elif defined(CONFIG_ARM64) && defined(CONFIG_KERNEL_MODE_NEON) + return true; +#elif defined(CONFIG_ARM) && defined(CONFIG_KERNEL_MODE_NEON) + return !in_nmi() && !in_irq() && !in_serving_softirq(); +#else + return false; +#endif +} + +#endif -- cgit v1.2.3