1*d9cb4336SCornelia Huck /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*d9cb4336SCornelia Huck /* Copyright (C) 2017-2018 ARM Limited */ 3*d9cb4336SCornelia Huck 4*d9cb4336SCornelia Huck /* 5*d9cb4336SCornelia Huck * For use by other UAPI headers only. 6*d9cb4336SCornelia Huck * Do not make direct use of header or its definitions. 7*d9cb4336SCornelia Huck */ 8*d9cb4336SCornelia Huck 9*d9cb4336SCornelia Huck #ifndef __ASM_SVE_CONTEXT_H 10*d9cb4336SCornelia Huck #define __ASM_SVE_CONTEXT_H 11*d9cb4336SCornelia Huck 12*d9cb4336SCornelia Huck #include <linux/types.h> 13*d9cb4336SCornelia Huck 14*d9cb4336SCornelia Huck #define __SVE_VQ_BYTES 16 /* number of bytes per quadword */ 15*d9cb4336SCornelia Huck 16*d9cb4336SCornelia Huck #define __SVE_VQ_MIN 1 17*d9cb4336SCornelia Huck #define __SVE_VQ_MAX 512 18*d9cb4336SCornelia Huck 19*d9cb4336SCornelia Huck #define __SVE_VL_MIN (__SVE_VQ_MIN * __SVE_VQ_BYTES) 20*d9cb4336SCornelia Huck #define __SVE_VL_MAX (__SVE_VQ_MAX * __SVE_VQ_BYTES) 21*d9cb4336SCornelia Huck 22*d9cb4336SCornelia Huck #define __SVE_NUM_ZREGS 32 23*d9cb4336SCornelia Huck #define __SVE_NUM_PREGS 16 24*d9cb4336SCornelia Huck 25*d9cb4336SCornelia Huck #define __sve_vl_valid(vl) \ 26*d9cb4336SCornelia Huck ((vl) % __SVE_VQ_BYTES == 0 && \ 27*d9cb4336SCornelia Huck (vl) >= __SVE_VL_MIN && \ 28*d9cb4336SCornelia Huck (vl) <= __SVE_VL_MAX) 29*d9cb4336SCornelia Huck 30*d9cb4336SCornelia Huck #define __sve_vq_from_vl(vl) ((vl) / __SVE_VQ_BYTES) 31*d9cb4336SCornelia Huck #define __sve_vl_from_vq(vq) ((vq) * __SVE_VQ_BYTES) 32*d9cb4336SCornelia Huck 33*d9cb4336SCornelia Huck #define __SVE_ZREG_SIZE(vq) ((__u32)(vq) * __SVE_VQ_BYTES) 34*d9cb4336SCornelia Huck #define __SVE_PREG_SIZE(vq) ((__u32)(vq) * (__SVE_VQ_BYTES / 8)) 35*d9cb4336SCornelia Huck #define __SVE_FFR_SIZE(vq) __SVE_PREG_SIZE(vq) 36*d9cb4336SCornelia Huck 37*d9cb4336SCornelia Huck #define __SVE_ZREGS_OFFSET 0 38*d9cb4336SCornelia Huck #define __SVE_ZREG_OFFSET(vq, n) \ 39*d9cb4336SCornelia Huck (__SVE_ZREGS_OFFSET + __SVE_ZREG_SIZE(vq) * (n)) 40*d9cb4336SCornelia Huck #define __SVE_ZREGS_SIZE(vq) \ 41*d9cb4336SCornelia Huck (__SVE_ZREG_OFFSET(vq, __SVE_NUM_ZREGS) - __SVE_ZREGS_OFFSET) 42*d9cb4336SCornelia Huck 43*d9cb4336SCornelia Huck #define __SVE_PREGS_OFFSET(vq) \ 44*d9cb4336SCornelia Huck (__SVE_ZREGS_OFFSET + __SVE_ZREGS_SIZE(vq)) 45*d9cb4336SCornelia Huck #define __SVE_PREG_OFFSET(vq, n) \ 46*d9cb4336SCornelia Huck (__SVE_PREGS_OFFSET(vq) + __SVE_PREG_SIZE(vq) * (n)) 47*d9cb4336SCornelia Huck #define __SVE_PREGS_SIZE(vq) \ 48*d9cb4336SCornelia Huck (__SVE_PREG_OFFSET(vq, __SVE_NUM_PREGS) - __SVE_PREGS_OFFSET(vq)) 49*d9cb4336SCornelia Huck 50*d9cb4336SCornelia Huck #define __SVE_FFR_OFFSET(vq) \ 51*d9cb4336SCornelia Huck (__SVE_PREGS_OFFSET(vq) + __SVE_PREGS_SIZE(vq)) 52*d9cb4336SCornelia Huck 53*d9cb4336SCornelia Huck #endif /* ! _UAPI__ASM_SVE_CONTEXT_H */ 54