/*
* Copyright 2015 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Author: Oded Gabbay <oded.gabbay@redhat.com>
*/
/**
* @file
* POWER8 intrinsics portability header.
*
*/
#ifndef U_PWR8_H_
#define U_PWR8_H_
#if defined(_ARCH_PWR8) && defined(PIPE_ARCH_LITTLE_ENDIAN)
#define VECTOR_ALIGN_16 __attribute__ ((__aligned__ (16)))
typedef VECTOR_ALIGN_16 vector unsigned char __m128i;
typedef VECTOR_ALIGN_16 union m128i {
__m128i m128i;
vector signed int m128si;
vector unsigned int m128ui;
ubyte ub[16];
ushort us[8];
int i[4];
uint ui[4];
} __m128i_union;
static inline __m128i
vec_set_epi32 (int i3, int i2, int i1, int i0)
{
__m128i_union vdst;
#ifdef PIPE_ARCH_LITTLE_ENDIAN
vdst.i[0] = i0;
vdst.i[1] = i1;
vdst.i[2] = i2;
vdst.i[3] = i3;
#else
vdst.i[3] = i0;
vdst.i[2] = i1;
vdst.i[1] = i2;
vdst.i[0] = i3;
#endif
return (__m128i) vdst.m128si;
}
static inline __m128i
vec_setr_epi32 (int i0, int i1, int i2, int i3)
{
return vec_set_epi32 (i3, i2, i1, i0);
}
static inline __m128i
vec_unpacklo_epi32 (__m128i even, __m128i odd)
{
static const __m128i perm_mask =
#ifdef PIPE_ARCH_LITTLE_ENDIAN
{ 0, 1, 2, 3, 16, 17, 18, 19, 4, 5, 6, 7, 20, 21, 22, 23};
#else
{24, 25, 26, 27, 8, 9, 10, 11, 28, 29, 30, 31, 12, 13, 14, 15};
#endif
return vec_perm (even, odd, perm_mask);
}
static inline __m128i
vec_unpackhi_epi32 (__m128i even, __m128i odd)
{
static const __m128i perm_mask =
#ifdef PIPE_ARCH_LITTLE_ENDIAN
{ 8, 9, 10, 11, 24, 25, 26, 27, 12, 13, 14, 15, 28, 29, 30, 31};
#else
{16, 17, 18, 19, 0, 1, 2, 3, 20, 21, 22, 23, 4, 5, 6, 7};
#endif
return vec_perm (even, odd, perm_mask);
}
static inline __m128i
vec_unpacklo_epi64 (__m128i even, __m128i odd)
{
static const __m128i perm_mask =
#ifdef PIPE_ARCH_LITTLE_ENDIAN
{ 0, 1, 2, 3, 4, 5, 6, 7, 16, 17, 18, 19, 20, 21, 22, 23};
#else
{24, 25, 26, 27, 28, 29, 30, 31, 8, 9, 10, 11, 12, 13, 14, 15};
#endif
return vec_perm (even, odd, perm_mask);
}
static inline __m128i
vec_unpackhi_epi64 (__m128i even, __m128i odd)
{
static const __m128i perm_mask =
#ifdef PIPE_ARCH_LITTLE_ENDIAN
{ 8, 9, 10, 11, 12, 13, 14, 15, 24, 25, 26, 27, 28, 29, 30, 31};
#else
{16, 17, 18, 19, 20, 21, 22, 23, 0, 1, 2, 3, 4, 5, 6, 7};
#endif
return vec_perm (even, odd, perm_mask);
}
static inline __m128i
vec_add_epi32 (__m128i a, __m128i b)
{
return (__m128i) vec_add ((vector signed int) a, (vector signed int) b);
}
static inline __m128i
vec_sub_epi32 (__m128i a, __m128i b)
{
return (__m128i) vec_sub ((vector signed int) a, (vector signed int) b);
}
/* Call this function ONLY on POWER8 and newer platforms */
static inline __m128i
vec_mullo_epi32 (__m128i a, __m128i b)
{
__m128i v;
__asm__(
"vmuluwm %0, %1, %2 \n"
: "=v" (v)
: "v" (a), "v" (b)
);
return v;
}
static inline __m128i
vec_andnot_si128 (__m128i a, __m128i b)
{
return vec_andc (b, a);
}
static inline void
transpose4_epi32(const __m128i * restrict a,
const __m128i * restrict b,
const __m128i * restrict c,
const __m128i * restrict d,
__m128i * restrict o,
__m128i * restrict p,
__m128i * restrict q,
__m128i * restrict r)
{
__m128i t0 = vec_unpacklo_epi32(*a, *b);
__m128i t1 = vec_unpacklo_epi32(*c, *d);
__m128i t2 = vec_unpackhi_epi32(*a, *b);
__m128i t3 = vec_unpackhi_epi32(*c, *d);
*o = vec_unpacklo_epi64(t0, t1);
*p = vec_unpackhi_epi64(t0, t1);
*q = vec_unpacklo_epi64(t2, t3);
*r = vec_unpackhi_epi64(t2, t3);
}
static inline __m128i
vec_slli_epi32 (__m128i vsrc, unsigned int count)
{
__m128i_union vec_count;
if (count >= 32)
return (__m128i) vec_splats (0);
else if (count == 0)
return vsrc;
/* In VMX, all shift count fields must contain the same value */
vec_count.m128si = (vector signed int) vec_splats (count);
return (__m128i) vec_sl ((vector signed int) vsrc, vec_count.m128ui);
}
static inline __m128i
vec_srli_epi32 (__m128i vsrc, unsigned int count)
{
__m128i_union vec_count;
if (count >= 32)
return (__m128i) vec_splats (0);
else if (count == 0)
return vsrc;
/* In VMX, all shift count fields must contain the same value */
vec_count.m128si = (vector signed int) vec_splats (count);
return (__m128i) vec_sr ((vector signed int) vsrc, vec_count.m128ui);
}
static inline __m128i
vec_srai_epi32 (__m128i vsrc, unsigned int count)
{
__m128i_union vec_count;
if (count >= 32)
return (__m128i) vec_splats (0);
else if (count == 0)
return vsrc;
/* In VMX, all shift count fields must contain the same value */
vec_count.m128si = (vector signed int) vec_splats (count);
return (__m128i) vec_sra ((vector signed int) vsrc, vec_count.m128ui);
}
static inline __m128i
vec_cmpeq_epi32 (__m128i a, __m128i b)
{
return (__m128i) vec_cmpeq ((vector signed int) a, (vector signed int) b);
}
static inline __m128i
vec_loadu_si128 (const uint32_t* src)
{
__m128i_union vsrc;
#ifdef PIPE_ARCH_LITTLE_ENDIAN
vsrc.m128ui = *((vector unsigned int *) src);
#else
__m128i vmask, tmp1, tmp2;
vmask = vec_lvsl(0, src);
tmp1 = (__m128i) vec_ld (0, src);
tmp2 = (__m128i) vec_ld (15, src);
vsrc.m128ui = (vector unsigned int) vec_perm (tmp1, tmp2, vmask);
#endif
return vsrc.m128i;
}
static inline __m128i
vec_load_si128 (const uint32_t* src)
{
__m128i_union vsrc;
vsrc.m128ui = *((vector unsigned int *) src);
return vsrc.m128i;
}
static inline void
vec_store_si128 (uint32_t* dest, __m128i vdata)
{
vec_st ((vector unsigned int) vdata, 0, dest);
}
/* Call this function ONLY on POWER8 and newer platforms */
static inline int
vec_movemask_epi8 (__m128i vsrc)
{
__m128i_union vtemp;
int result;
vtemp.m128i = vec_vgbbd(vsrc);
#ifdef PIPE_ARCH_LITTLE_ENDIAN
result = vtemp.ub[15] << 8 | vtemp.ub[7];
#else
result = vtemp.ub[0] << 8 | vtemp.ub[8];
#endif
return result;
}
static inline __m128i
vec_packs_epi16 (__m128i a, __m128i b)
{
#ifdef PIPE_ARCH_LITTLE_ENDIAN
return (__m128i) vec_packs ((vector signed short) a,
(vector signed short) b);
#else
return (__m128i) vec_packs ((vector signed short) b,
(vector signed short) a);
#endif
}
static inline __m128i
vec_packs_epi32 (__m128i a, __m128i b)
{
#ifdef PIPE_ARCH_LITTLE_ENDIAN
return (__m128i) vec_packs ((vector signed int) a, (vector signed int) b);
#else
return (__m128i) vec_packs ((vector signed int) b, (vector signed int) a);
#endif
}
#endif /* _ARCH_PWR8 && PIPE_ARCH_LITTLE_ENDIAN */
#endif /* U_PWR8_H_ */