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target-ppc: add vrldnmi and vrlwmi instructions

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vrldmi: Vector Rotate Left Dword then Mask Insert
vrlwmi: Vector Rotate Left Word then Mask Insert

Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
( use extract[32,64] and rol[32,64], introduce mask helpers in
  internal.h )
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Gautham R. Shenoy 2016-10-30 08:44:56 +05:30 committed by David Gibson
parent ecce0369b8
commit 3e00884f4e
7 changed files with 86 additions and 30 deletions
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2
disas/ppc.c
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@ -2286,6 +2286,8 @@ const struct powerpc_opcode powerpc_opcodes[] = {
{ "vrlh", VX(4, 68), VX_MASK, PPCVEC, { VD, VA, VB } },
{ "vrlw", VX(4, 132), VX_MASK, PPCVEC, { VD, VA, VB } },
{ "vrsqrtefp", VX(4, 330), VX_MASK, PPCVEC, { VD, VB } },
{ "vrldmi", VX(4, 197), VX_MASK, PPCVEC, { VD, VA, VB } },
{ "vrlwmi", VX(4, 133), VX_MASK, PPCVEC, { VD, VA, VB} },
{ "vsel", VXA(4, 42), VXA_MASK, PPCVEC, { VD, VA, VB, VC } },
{ "vsl", VX(4, 452), VX_MASK, PPCVEC, { VD, VA, VB } },
{ "vslb", VX(4, 260), VX_MASK, PPCVEC, { VD, VA, VB } },

2
target-ppc/helper.h
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@ -325,6 +325,8 @@ DEF_HELPER_4(vmaxfp, void, env, avr, avr, avr)
DEF_HELPER_4(vminfp, void, env, avr, avr, avr)
DEF_HELPER_3(vrefp, void, env, avr, avr)
DEF_HELPER_3(vrsqrtefp, void, env, avr, avr)
DEF_HELPER_3(vrlwmi, void, avr, avr, avr)
DEF_HELPER_3(vrldmi, void, avr, avr, avr)
DEF_HELPER_5(vmaddfp, void, env, avr, avr, avr, avr)
DEF_HELPER_5(vnmsubfp, void, env, avr, avr, avr, avr)
DEF_HELPER_3(vexptefp, void, env, avr, avr)

23
target-ppc/int_helper.c
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@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "cpu.h"
#include "internal.h"
#include "exec/exec-all.h"
#include "qemu/host-utils.h"
#include "exec/helper-proto.h"
@ -1717,6 +1718,28 @@ void helper_vrsqrtefp(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *b)
}
}
#define VRLMI(name, size, element) \
void helper_##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
{ \
int i; \
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
uint##size##_t src1 = a->element[i]; \
uint##size##_t src2 = b->element[i]; \
uint##size##_t src3 = r->element[i]; \
uint##size##_t begin, end, shift, mask, rot_val; \
\
shift = extract##size(src2, 0, 6); \
end = extract##size(src2, 8, 6); \
begin = extract##size(src2, 16, 6); \
rot_val = rol##size(src1, shift); \
mask = mask_u##size(begin, end); \
r->element[i] = (rot_val & mask) | (src3 & ~mask); \
} \
}
VRLMI(vrldmi, 64, u64);
VRLMI(vrlwmi, 32, u32);
void helper_vsel(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b,
ppc_avr_t *c)
{

50
target-ppc/internal.h Normal file
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@ -0,0 +1,50 @@
/*
* PowerPC interal definitions for qemu.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PPC_INTERNAL_H
#define PPC_INTERNAL_H
#define FUNC_MASK(name, ret_type, size, max_val) \
static inline ret_type name(uint##size##_t start, \
uint##size##_t end) \
{ \
ret_type ret, max_bit = size - 1; \
\
if (likely(start == 0)) { \
ret = max_val << (max_bit - end); \
} else if (likely(end == max_bit)) { \
ret = max_val >> start; \
} else { \
ret = (((uint##size##_t)(-1ULL)) >> (start)) ^ \
(((uint##size##_t)(-1ULL) >> (end)) >> 1); \
if (unlikely(start > end)) { \
return ~ret; \
} \
} \
\
return ret; \
}
#if defined(TARGET_PPC64)
FUNC_MASK(MASK, target_ulong, 64, UINT64_MAX);
#else
FUNC_MASK(MASK, target_ulong, 32, UINT32_MAX);
#endif
FUNC_MASK(mask_u32, uint32_t, 32, UINT32_MAX);
FUNC_MASK(mask_u64, uint64_t, 64, UINT64_MAX);
#endif /* PPC_INTERNAL_H */

29
target-ppc/translate.c
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@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "cpu.h"
#include "internal.h"
#include "disas/disas.h"
#include "exec/exec-all.h"
#include "tcg-op.h"
@ -561,34 +562,6 @@ EXTRACT_HELPER(DCM, 10, 6)
/* DFP Z23-form */
EXTRACT_HELPER(RMC, 9, 2)
/* Create a mask between <start> and <end> bits */
static inline target_ulong MASK(uint32_t start, uint32_t end)
{
target_ulong ret;
#if defined(TARGET_PPC64)
if (likely(start == 0)) {
ret = UINT64_MAX << (63 - end);
} else if (likely(end == 63)) {
ret = UINT64_MAX >> start;
}
#else
if (likely(start == 0)) {
ret = UINT32_MAX << (31 - end);
} else if (likely(end == 31)) {
ret = UINT32_MAX >> start;
}
#endif
else {
ret = (((target_ulong)(-1ULL)) >> (start)) ^
(((target_ulong)(-1ULL) >> (end)) >> 1);
if (unlikely(start > end))
return ~ret;
}
return ret;
}
EXTRACT_HELPER_SPLIT(xT, 0, 1, 21, 5);
EXTRACT_HELPER_SPLIT(xS, 0, 1, 21, 5);
EXTRACT_HELPER_SPLIT(xA, 2, 1, 16, 5);

6
target-ppc/translate/vmx-impl.inc.c
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@ -488,7 +488,13 @@ GEN_VXFORM_DUAL(vsubeuqm, PPC_NONE, PPC2_ALTIVEC_207, \
GEN_VXFORM(vrlb, 2, 0);
GEN_VXFORM(vrlh, 2, 1);
GEN_VXFORM(vrlw, 2, 2);
GEN_VXFORM(vrlwmi, 2, 2);
GEN_VXFORM_DUAL(vrlw, PPC_ALTIVEC, PPC_NONE, \
vrlwmi, PPC_NONE, PPC2_ISA300)
GEN_VXFORM(vrld, 2, 3);
GEN_VXFORM(vrldmi, 2, 3);
GEN_VXFORM_DUAL(vrld, PPC_NONE, PPC2_ALTIVEC_207, \
vrldmi, PPC_NONE, PPC2_ISA300)
GEN_VXFORM(vsl, 2, 7);
GEN_VXFORM(vsr, 2, 11);
GEN_VXFORM_ENV(vpkuhum, 7, 0);

4
target-ppc/translate/vmx-ops.inc.c
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@ -143,8 +143,8 @@ GEN_VXFORM_207(vsubcuq, 0, 21),
GEN_VXFORM_DUAL(vsubeuqm, vsubecuq, 31, 0xFF, PPC_NONE, PPC2_ALTIVEC_207),
GEN_VXFORM(vrlb, 2, 0),
GEN_VXFORM(vrlh, 2, 1),
GEN_VXFORM(vrlw, 2, 2),
GEN_VXFORM_207(vrld, 2, 3),
GEN_VXFORM_DUAL(vrlw, vrlwmi, 2, 2, PPC_ALTIVEC, PPC_NONE),
GEN_VXFORM_DUAL(vrld, vrldmi, 2, 3, PPC_NONE, PPC2_ALTIVEC_207),
GEN_VXFORM(vsl, 2, 7),
GEN_VXFORM(vsr, 2, 11),
GEN_VXFORM(vpkuhum, 7, 0),