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Diffstat (limited to 'arch/loongarch/include/asm/xor.h')
-rw-r--r-- | arch/loongarch/include/asm/xor.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/loongarch/include/asm/xor.h b/arch/loongarch/include/asm/xor.h new file mode 100644 index 0000000000..12467fffee --- /dev/null +++ b/arch/loongarch/include/asm/xor.h @@ -0,0 +1,68 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2023 WANG Xuerui <git@xen0n.name> + */ +#ifndef _ASM_LOONGARCH_XOR_H +#define _ASM_LOONGARCH_XOR_H + +#include <asm/cpu-features.h> +#include <asm/xor_simd.h> + +#ifdef CONFIG_CPU_HAS_LSX +static struct xor_block_template xor_block_lsx = { + .name = "lsx", + .do_2 = xor_lsx_2, + .do_3 = xor_lsx_3, + .do_4 = xor_lsx_4, + .do_5 = xor_lsx_5, +}; + +#define XOR_SPEED_LSX() \ + do { \ + if (cpu_has_lsx) \ + xor_speed(&xor_block_lsx); \ + } while (0) +#else /* CONFIG_CPU_HAS_LSX */ +#define XOR_SPEED_LSX() +#endif /* CONFIG_CPU_HAS_LSX */ + +#ifdef CONFIG_CPU_HAS_LASX +static struct xor_block_template xor_block_lasx = { + .name = "lasx", + .do_2 = xor_lasx_2, + .do_3 = xor_lasx_3, + .do_4 = xor_lasx_4, + .do_5 = xor_lasx_5, +}; + +#define XOR_SPEED_LASX() \ + do { \ + if (cpu_has_lasx) \ + xor_speed(&xor_block_lasx); \ + } while (0) +#else /* CONFIG_CPU_HAS_LASX */ +#define XOR_SPEED_LASX() +#endif /* CONFIG_CPU_HAS_LASX */ + +/* + * For grins, also test the generic routines. + * + * More importantly: it cannot be ruled out at this point of time, that some + * future (maybe reduced) models could run the vector algorithms slower than + * the scalar ones, maybe for errata or micro-op reasons. It may be + * appropriate to revisit this after one or two more uarch generations. + */ +#include <asm-generic/xor.h> + +#undef XOR_TRY_TEMPLATES +#define XOR_TRY_TEMPLATES \ +do { \ + xor_speed(&xor_block_8regs); \ + xor_speed(&xor_block_8regs_p); \ + xor_speed(&xor_block_32regs); \ + xor_speed(&xor_block_32regs_p); \ + XOR_SPEED_LSX(); \ + XOR_SPEED_LASX(); \ +} while (0) + +#endif /* _ASM_LOONGARCH_XOR_H */ |