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target/loongarch: Add LASX data support

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Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230914022645.1151356-12-gaosong@loongson.cn>
This commit is contained in:
Song Gao 2023-09-14 10:25:59 +08:00
parent cd1006176b
commit 008a3b1662
No known key found for this signature in database
GPG key ID: 40A2FFF239263EDF
9 changed files with 86 additions and 34 deletions
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1
linux-user/loongarch64/signal.c
View file

@ -12,6 +12,7 @@
#include "linux-user/trace.h"
#include "target/loongarch/internals.h"
#include "target/loongarch/vec.h"
/* FP context was used */
#define SC_USED_FP (1 << 0)

1
target/loongarch/cpu.c
View file

@ -19,6 +19,7 @@
#include "cpu-csr.h"
#include "sysemu/reset.h"
#include "tcg/tcg.h"
#include "vec.h"
const char * const regnames[32] = {
"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",

24
target/loongarch/cpu.h
View file

@ -251,18 +251,20 @@ FIELD(TLB_MISC, ASID, 1, 10)
FIELD(TLB_MISC, VPPN, 13, 35)
FIELD(TLB_MISC, PS, 48, 6)
#define LSX_LEN (128)
#define LSX_LEN (128)
#define LASX_LEN (256)
typedef union VReg {
int8_t B[LSX_LEN / 8];
int16_t H[LSX_LEN / 16];
int32_t W[LSX_LEN / 32];
int64_t D[LSX_LEN / 64];
uint8_t UB[LSX_LEN / 8];
uint16_t UH[LSX_LEN / 16];
uint32_t UW[LSX_LEN / 32];
uint64_t UD[LSX_LEN / 64];
Int128 Q[LSX_LEN / 128];
}VReg;
int8_t B[LASX_LEN / 8];
int16_t H[LASX_LEN / 16];
int32_t W[LASX_LEN / 32];
int64_t D[LASX_LEN / 64];
uint8_t UB[LASX_LEN / 8];
uint16_t UH[LASX_LEN / 16];
uint32_t UW[LASX_LEN / 32];
uint64_t UD[LASX_LEN / 64];
Int128 Q[LASX_LEN / 128];
} VReg;
typedef union fpr_t fpr_t;
union fpr_t {

1
target/loongarch/gdbstub.c
View file

@ -11,6 +11,7 @@
#include "internals.h"
#include "exec/gdbstub.h"
#include "gdbstub/helpers.h"
#include "vec.h"
uint64_t read_fcc(CPULoongArchState *env)
{

22
target/loongarch/internals.h
View file

@ -21,28 +21,6 @@
/* Global bit for huge page */
#define LOONGARCH_HGLOBAL_SHIFT 12
#if HOST_BIG_ENDIAN
#define B(x) B[15 - (x)]
#define H(x) H[7 - (x)]
#define W(x) W[3 - (x)]
#define D(x) D[1 - (x)]
#define UB(x) UB[15 - (x)]
#define UH(x) UH[7 - (x)]
#define UW(x) UW[3 - (x)]
#define UD(x) UD[1 -(x)]
#define Q(x) Q[x]
#else
#define B(x) B[x]
#define H(x) H[x]
#define W(x) W[x]
#define D(x) D[x]
#define UB(x) UB[x]
#define UH(x) UH[x]
#define UW(x) UW[x]
#define UD(x) UD[x]
#define Q(x) Q[x]
#endif
void loongarch_translate_init(void);
void loongarch_cpu_dump_state(CPUState *cpu, FILE *f, int flags);

36
target/loongarch/machine.c
View file

@ -8,7 +8,7 @@
#include "qemu/osdep.h"
#include "cpu.h"
#include "migration/cpu.h"
#include "internals.h"
#include "vec.h"
static const VMStateDescription vmstate_fpu_reg = {
.name = "fpu_reg",
@ -76,6 +76,39 @@ static const VMStateDescription vmstate_lsx = {
},
};
static const VMStateDescription vmstate_lasxh_reg = {
.name = "lasxh_reg",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT64(UD(2), VReg),
VMSTATE_UINT64(UD(3), VReg),
VMSTATE_END_OF_LIST()
}
};
#define VMSTATE_LASXH_REGS(_field, _state, _start) \
VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, 32, 0, \
vmstate_lasxh_reg, fpr_t)
static bool lasx_needed(void *opaque)
{
LoongArchCPU *cpu = opaque;
return FIELD_EX64(cpu->env.cpucfg[2], CPUCFG2, LASX);
}
static const VMStateDescription vmstate_lasx = {
.name = "cpu/lasx",
.version_id = 1,
.minimum_version_id = 1,
.needed = lasx_needed,
.fields = (VMStateField[]) {
VMSTATE_LASXH_REGS(env.fpr, LoongArchCPU, 0),
VMSTATE_END_OF_LIST()
},
};
/* TLB state */
const VMStateDescription vmstate_tlb = {
.name = "cpu/tlb",
@ -163,6 +196,7 @@ const VMStateDescription vmstate_loongarch_cpu = {
.subsections = (const VMStateDescription*[]) {
&vmstate_fpu,
&vmstate_lsx,
&vmstate_lasx,
NULL
}
};

1
target/loongarch/translate.c
View file

@ -18,6 +18,7 @@
#include "fpu/softfloat.h"
#include "translate.h"
#include "internals.h"
#include "vec.h"
/* Global register indices */
TCGv cpu_gpr[32], cpu_pc;

33
target/loongarch/vec.h Normal file
View file

@ -0,0 +1,33 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* QEMU LoongArch vector utilitites
*
* Copyright (c) 2023 Loongson Technology Corporation Limited
*/
#ifndef LOONGARCH_VEC_H
#define LOONGARCH_VEC_H
#if HOST_BIG_ENDIAN
#define B(x) B[(x) ^ 15]
#define H(x) H[(x) ^ 7]
#define W(x) W[(x) ^ 3]
#define D(x) D[(x) ^ 1]
#define UB(x) UB[(x) ^ 15]
#define UH(x) UH[(x) ^ 7]
#define UW(x) UW[(x) ^ 3]
#define UD(x) UD[(x) ^ 1]
#define Q(x) Q[x]
#else
#define B(x) B[x]
#define H(x) H[x]
#define W(x) W[x]
#define D(x) D[x]
#define UB(x) UB[x]
#define UH(x) UH[x]
#define UW(x) UW[x]
#define UD(x) UD[x]
#define Q(x) Q[x]
#endif /* HOST_BIG_ENDIAN */
#endif /* LOONGARCH_VEC_H */

1
target/loongarch/vec_helper.c
View file

@ -12,6 +12,7 @@
#include "fpu/softfloat.h"
#include "internals.h"
#include "tcg/tcg.h"
#include "vec.h"
#define DO_ADD(a, b) (a + b)
#define DO_SUB(a, b) (a - b)