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qemu/target/mips/op_helper.c
Chetan Pant 89975214e6 target/mips: Fix Lesser GPL version number 
There is no "version 2" of the "Lesser" General Public License.
It is either "GPL version 2.0" or "Lesser GPL version 2.1".
This patch replaces all occurrences of "Lesser GPL version 2" with
"Lesser GPL version 2.1" in comment section.

Signed-off-by: Chetan Pant <chetan4windows@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201016143509.26692-1-chetan4windows@gmail.com>
[PMD: Split hw/ vs target/]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2020-11-03 16:51:13 +01:00

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/*
* MIPS emulation helpers for qemu.
*
* Copyright (c) 2004-2005 Jocelyn Mayer
*
* 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 2.1 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/>.
*
*/
#include "qemu/osdep.h"
#include "qemu/main-loop.h"
#include "cpu.h"
#include "internal.h"
#include "qemu/host-utils.h"
#include "exec/helper-proto.h"
#include "exec/exec-all.h"
#include "exec/cpu_ldst.h"
#include "exec/memop.h"
#include "sysemu/kvm.h"
/*****************************************************************************/
/* Exceptions processing helpers */
void helper_raise_exception_err(CPUMIPSState *env, uint32_t exception,
int error_code)
{
do_raise_exception_err(env, exception, error_code, 0);
}
void helper_raise_exception(CPUMIPSState *env, uint32_t exception)
{
do_raise_exception(env, exception, GETPC());
}
void helper_raise_exception_debug(CPUMIPSState *env)
{
do_raise_exception(env, EXCP_DEBUG, 0);
}
static void raise_exception(CPUMIPSState *env, uint32_t exception)
{
do_raise_exception(env, exception, 0);
}
/* 64 bits arithmetic for 32 bits hosts */
static inline uint64_t get_HILO(CPUMIPSState *env)
{
return ((uint64_t)(env->active_tc.HI[0]) << 32) |
(uint32_t)env->active_tc.LO[0];
}
static inline target_ulong set_HIT0_LO(CPUMIPSState *env, uint64_t HILO)
{
env->active_tc.LO[0] = (int32_t)(HILO & 0xFFFFFFFF);
return env->active_tc.HI[0] = (int32_t)(HILO >> 32);
}
static inline target_ulong set_HI_LOT0(CPUMIPSState *env, uint64_t HILO)
{
target_ulong tmp = env->active_tc.LO[0] = (int32_t)(HILO & 0xFFFFFFFF);
env->active_tc.HI[0] = (int32_t)(HILO >> 32);
return tmp;
}
/* Multiplication variants of the vr54xx. */
target_ulong helper_muls(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2)
{
return set_HI_LOT0(env, 0 - ((int64_t)(int32_t)arg1 *
(int64_t)(int32_t)arg2));
}
target_ulong helper_mulsu(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2)
{
return set_HI_LOT0(env, 0 - (uint64_t)(uint32_t)arg1 *
(uint64_t)(uint32_t)arg2);
}
target_ulong helper_macc(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2)
{
return set_HI_LOT0(env, (int64_t)get_HILO(env) + (int64_t)(int32_t)arg1 *
(int64_t)(int32_t)arg2);
}
target_ulong helper_macchi(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2)
{
return set_HIT0_LO(env, (int64_t)get_HILO(env) + (int64_t)(int32_t)arg1 *
(int64_t)(int32_t)arg2);
}
target_ulong helper_maccu(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2)
{
return set_HI_LOT0(env, (uint64_t)get_HILO(env) +
(uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
}
target_ulong helper_macchiu(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2)
{
return set_HIT0_LO(env, (uint64_t)get_HILO(env) +
(uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
}
target_ulong helper_msac(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2)
{
return set_HI_LOT0(env, (int64_t)get_HILO(env) - (int64_t)(int32_t)arg1 *
(int64_t)(int32_t)arg2);
}
target_ulong helper_msachi(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2)
{
return set_HIT0_LO(env, (int64_t)get_HILO(env) - (int64_t)(int32_t)arg1 *
(int64_t)(int32_t)arg2);
}
target_ulong helper_msacu(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2)
{
return set_HI_LOT0(env, (uint64_t)get_HILO(env) -
(uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
}
target_ulong helper_msachiu(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2)
{
return set_HIT0_LO(env, (uint64_t)get_HILO(env) -
(uint64_t)(uint32_t)arg1 * (uint64_t)(uint32_t)arg2);
}
target_ulong helper_mulhi(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2)
{
return set_HIT0_LO(env, (int64_t)(int32_t)arg1 * (int64_t)(int32_t)arg2);
}
target_ulong helper_mulhiu(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2)
{
return set_HIT0_LO(env, (uint64_t)(uint32_t)arg1 *
(uint64_t)(uint32_t)arg2);
}
target_ulong helper_mulshi(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2)
{
return set_HIT0_LO(env, 0 - (int64_t)(int32_t)arg1 *
(int64_t)(int32_t)arg2);
}
target_ulong helper_mulshiu(CPUMIPSState *env, target_ulong arg1,
target_ulong arg2)
{
return set_HIT0_LO(env, 0 - (uint64_t)(uint32_t)arg1 *
(uint64_t)(uint32_t)arg2);
}
static inline target_ulong bitswap(target_ulong v)
{
v = ((v >> 1) & (target_ulong)0x5555555555555555ULL) |
((v & (target_ulong)0x5555555555555555ULL) << 1);
v = ((v >> 2) & (target_ulong)0x3333333333333333ULL) |
((v & (target_ulong)0x3333333333333333ULL) << 2);
v = ((v >> 4) & (target_ulong)0x0F0F0F0F0F0F0F0FULL) |
((v & (target_ulong)0x0F0F0F0F0F0F0F0FULL) << 4);
return v;
}
#ifdef TARGET_MIPS64
target_ulong helper_dbitswap(target_ulong rt)
{
return bitswap(rt);
}
#endif
target_ulong helper_bitswap(target_ulong rt)
{
return (int32_t)bitswap(rt);
}
target_ulong helper_rotx(target_ulong rs, uint32_t shift, uint32_t shiftx,
uint32_t stripe)
{
int i;
uint64_t tmp0 = ((uint64_t)rs) << 32 | ((uint64_t)rs & 0xffffffff);
uint64_t tmp1 = tmp0;
for (i = 0; i <= 46; i++) {
int s;
if (i & 0x8) {
s = shift;
} else {
s = shiftx;
}
if (stripe != 0 && !(i & 0x4)) {
s = ~s;
}
if (s & 0x10) {
if (tmp0 & (1LL << (i + 16))) {
tmp1 |= 1LL << i;
} else {
tmp1 &= ~(1LL << i);
}
}
}
uint64_t tmp2 = tmp1;
for (i = 0; i <= 38; i++) {
int s;
if (i & 0x4) {
s = shift;
} else {
s = shiftx;
}
if (s & 0x8) {
if (tmp1 & (1LL << (i + 8))) {
tmp2 |= 1LL << i;
} else {
tmp2 &= ~(1LL << i);
}
}
}
uint64_t tmp3 = tmp2;
for (i = 0; i <= 34; i++) {
int s;
if (i & 0x2) {
s = shift;
} else {
s = shiftx;
}
if (s & 0x4) {
if (tmp2 & (1LL << (i + 4))) {
tmp3 |= 1LL << i;
} else {
tmp3 &= ~(1LL << i);
}
}
}
uint64_t tmp4 = tmp3;
for (i = 0; i <= 32; i++) {
int s;
if (i & 0x1) {
s = shift;
} else {
s = shiftx;
}
if (s & 0x2) {
if (tmp3 & (1LL << (i + 2))) {
tmp4 |= 1LL << i;
} else {
tmp4 &= ~(1LL << i);
}
}
}
uint64_t tmp5 = tmp4;
for (i = 0; i <= 31; i++) {
int s;
s = shift;
if (s & 0x1) {
if (tmp4 & (1LL << (i + 1))) {
tmp5 |= 1LL << i;
} else {
tmp5 &= ~(1LL << i);
}
}
}
return (int64_t)(int32_t)(uint32_t)tmp5;
}
#ifndef CONFIG_USER_ONLY
static inline hwaddr do_translate_address(CPUMIPSState *env,
target_ulong address,
int rw, uintptr_t retaddr)
{
hwaddr paddr;
CPUState *cs = env_cpu(env);
paddr = cpu_mips_translate_address(env, address, rw);
if (paddr == -1LL) {
cpu_loop_exit_restore(cs, retaddr);
} else {
return paddr;
}
}
#define HELPER_LD_ATOMIC(name, insn, almask, do_cast) \
target_ulong helper_##name(CPUMIPSState *env, target_ulong arg, int mem_idx) \
{ \
if (arg & almask) { \
if (!(env->hflags & MIPS_HFLAG_DM)) { \
env->CP0_BadVAddr = arg; \
} \
do_raise_exception(env, EXCP_AdEL, GETPC()); \
} \
env->CP0_LLAddr = do_translate_address(env, arg, 0, GETPC()); \
env->lladdr = arg; \
env->llval = do_cast cpu_##insn##_mmuidx_ra(env, arg, mem_idx, GETPC()); \
return env->llval; \
}
HELPER_LD_ATOMIC(ll, ldl, 0x3, (target_long)(int32_t))
#ifdef TARGET_MIPS64
HELPER_LD_ATOMIC(lld, ldq, 0x7, (target_ulong))
#endif
#undef HELPER_LD_ATOMIC
#endif
#ifdef TARGET_WORDS_BIGENDIAN
#define GET_LMASK(v) ((v) & 3)
#define GET_OFFSET(addr, offset) (addr + (offset))
#else
#define GET_LMASK(v) (((v) & 3) ^ 3)
#define GET_OFFSET(addr, offset) (addr - (offset))
#endif
void helper_swl(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
int mem_idx)
{
cpu_stb_mmuidx_ra(env, arg2, (uint8_t)(arg1 >> 24), mem_idx, GETPC());
if (GET_LMASK(arg2) <= 2) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 1), (uint8_t)(arg1 >> 16),
mem_idx, GETPC());
}
if (GET_LMASK(arg2) <= 1) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 2), (uint8_t)(arg1 >> 8),
mem_idx, GETPC());
}
if (GET_LMASK(arg2) == 0) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 3), (uint8_t)arg1,
mem_idx, GETPC());
}
}
void helper_swr(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
int mem_idx)
{
cpu_stb_mmuidx_ra(env, arg2, (uint8_t)arg1, mem_idx, GETPC());
if (GET_LMASK(arg2) >= 1) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -1), (uint8_t)(arg1 >> 8),
mem_idx, GETPC());
}
if (GET_LMASK(arg2) >= 2) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -2), (uint8_t)(arg1 >> 16),
mem_idx, GETPC());
}
if (GET_LMASK(arg2) == 3) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -3), (uint8_t)(arg1 >> 24),
mem_idx, GETPC());
}
}
#if defined(TARGET_MIPS64)
/*
* "half" load and stores. We must do the memory access inline,
* or fault handling won't work.
*/
#ifdef TARGET_WORDS_BIGENDIAN
#define GET_LMASK64(v) ((v) & 7)
#else
#define GET_LMASK64(v) (((v) & 7) ^ 7)
#endif
void helper_sdl(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
int mem_idx)
{
cpu_stb_mmuidx_ra(env, arg2, (uint8_t)(arg1 >> 56), mem_idx, GETPC());
if (GET_LMASK64(arg2) <= 6) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 1), (uint8_t)(arg1 >> 48),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) <= 5) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 2), (uint8_t)(arg1 >> 40),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) <= 4) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 3), (uint8_t)(arg1 >> 32),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) <= 3) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 4), (uint8_t)(arg1 >> 24),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) <= 2) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 5), (uint8_t)(arg1 >> 16),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) <= 1) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 6), (uint8_t)(arg1 >> 8),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) <= 0) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, 7), (uint8_t)arg1,
mem_idx, GETPC());
}
}
void helper_sdr(CPUMIPSState *env, target_ulong arg1, target_ulong arg2,
int mem_idx)
{
cpu_stb_mmuidx_ra(env, arg2, (uint8_t)arg1, mem_idx, GETPC());
if (GET_LMASK64(arg2) >= 1) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -1), (uint8_t)(arg1 >> 8),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) >= 2) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -2), (uint8_t)(arg1 >> 16),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) >= 3) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -3), (uint8_t)(arg1 >> 24),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) >= 4) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -4), (uint8_t)(arg1 >> 32),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) >= 5) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -5), (uint8_t)(arg1 >> 40),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) >= 6) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -6), (uint8_t)(arg1 >> 48),
mem_idx, GETPC());
}
if (GET_LMASK64(arg2) == 7) {
cpu_stb_mmuidx_ra(env, GET_OFFSET(arg2, -7), (uint8_t)(arg1 >> 56),
mem_idx, GETPC());
}
}
#endif /* TARGET_MIPS64 */
static const int multiple_regs[] = { 16, 17, 18, 19, 20, 21, 22, 23, 30 };
void helper_lwm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
uint32_t mem_idx)
{
target_ulong base_reglist = reglist & 0xf;
target_ulong do_r31 = reglist & 0x10;
if (base_reglist > 0 && base_reglist <= ARRAY_SIZE(multiple_regs)) {
target_ulong i;
for (i = 0; i < base_reglist; i++) {
env->active_tc.gpr[multiple_regs[i]] =
(target_long)cpu_ldl_mmuidx_ra(env, addr, mem_idx, GETPC());
addr += 4;
}
}
if (do_r31) {
env->active_tc.gpr[31] =
(target_long)cpu_ldl_mmuidx_ra(env, addr, mem_idx, GETPC());
}
}
void helper_swm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
uint32_t mem_idx)
{
target_ulong base_reglist = reglist & 0xf;
target_ulong do_r31 = reglist & 0x10;
if (base_reglist > 0 && base_reglist <= ARRAY_SIZE(multiple_regs)) {
target_ulong i;
for (i = 0; i < base_reglist; i++) {
cpu_stw_mmuidx_ra(env, addr, env->active_tc.gpr[multiple_regs[i]],
mem_idx, GETPC());
addr += 4;
}
}
if (do_r31) {
cpu_stw_mmuidx_ra(env, addr, env->active_tc.gpr[31], mem_idx, GETPC());
}
}
#if defined(TARGET_MIPS64)
void helper_ldm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
uint32_t mem_idx)
{
target_ulong base_reglist = reglist & 0xf;
target_ulong do_r31 = reglist & 0x10;
if (base_reglist > 0 && base_reglist <= ARRAY_SIZE(multiple_regs)) {
target_ulong i;
for (i = 0; i < base_reglist; i++) {
env->active_tc.gpr[multiple_regs[i]] =
cpu_ldq_mmuidx_ra(env, addr, mem_idx, GETPC());
addr += 8;
}
}
if (do_r31) {
env->active_tc.gpr[31] =
cpu_ldq_mmuidx_ra(env, addr, mem_idx, GETPC());
}
}
void helper_sdm(CPUMIPSState *env, target_ulong addr, target_ulong reglist,
uint32_t mem_idx)
{
target_ulong base_reglist = reglist & 0xf;
target_ulong do_r31 = reglist & 0x10;
if (base_reglist > 0 && base_reglist <= ARRAY_SIZE(multiple_regs)) {
target_ulong i;
for (i = 0; i < base_reglist; i++) {
cpu_stq_mmuidx_ra(env, addr, env->active_tc.gpr[multiple_regs[i]],
mem_idx, GETPC());
addr += 8;
}
}
if (do_r31) {
cpu_stq_mmuidx_ra(env, addr, env->active_tc.gpr[31], mem_idx, GETPC());
}
}
#endif
void helper_fork(target_ulong arg1, target_ulong arg2)
{
/*
* arg1 = rt, arg2 = rs
* TODO: store to TC register
*/
}
target_ulong helper_yield(CPUMIPSState *env, target_ulong arg)
{
target_long arg1 = arg;
if (arg1 < 0) {
/* No scheduling policy implemented. */
if (arg1 != -2) {
if (env->CP0_VPEControl & (1 << CP0VPECo_YSI) &&
env->active_tc.CP0_TCStatus & (1 << CP0TCSt_DT)) {
env->CP0_VPEControl &= ~(0x7 << CP0VPECo_EXCPT);
env->CP0_VPEControl |= 4 << CP0VPECo_EXCPT;
do_raise_exception(env, EXCP_THREAD, GETPC());
}
}
} else if (arg1 == 0) {
if (0) {
/* TODO: TC underflow */
env->CP0_VPEControl &= ~(0x7 << CP0VPECo_EXCPT);
do_raise_exception(env, EXCP_THREAD, GETPC());
} else {
/* TODO: Deallocate TC */
}
} else if (arg1 > 0) {
/* Yield qualifier inputs not implemented. */
env->CP0_VPEControl &= ~(0x7 << CP0VPECo_EXCPT);
env->CP0_VPEControl |= 2 << CP0VPECo_EXCPT;
do_raise_exception(env, EXCP_THREAD, GETPC());
}
return env->CP0_YQMask;
}
#ifndef CONFIG_USER_ONLY
/* TLB management */
static void r4k_mips_tlb_flush_extra(CPUMIPSState *env, int first)
{
/* Discard entries from env->tlb[first] onwards. */
while (env->tlb->tlb_in_use > first) {
r4k_invalidate_tlb(env, --env->tlb->tlb_in_use, 0);
}
}
static inline uint64_t get_tlb_pfn_from_entrylo(uint64_t entrylo)
{
#if defined(TARGET_MIPS64)
return extract64(entrylo, 6, 54);
#else
return extract64(entrylo, 6, 24) | /* PFN */
(extract64(entrylo, 32, 32) << 24); /* PFNX */
#endif
}
static void r4k_fill_tlb(CPUMIPSState *env, int idx)
{
r4k_tlb_t *tlb;
uint64_t mask = env->CP0_PageMask >> (TARGET_PAGE_BITS + 1);
/* XXX: detect conflicting TLBs and raise a MCHECK exception when needed */
tlb = &env->tlb->mmu.r4k.tlb[idx];
if (env->CP0_EntryHi & (1 << CP0EnHi_EHINV)) {
tlb->EHINV = 1;
return;
}
tlb->EHINV = 0;
tlb->VPN = env->CP0_EntryHi & (TARGET_PAGE_MASK << 1);
#if defined(TARGET_MIPS64)
tlb->VPN &= env->SEGMask;
#endif
tlb->ASID = env->CP0_EntryHi & env->CP0_EntryHi_ASID_mask;
tlb->MMID = env->CP0_MemoryMapID;
tlb->PageMask = env->CP0_PageMask;
tlb->G = env->CP0_EntryLo0 & env->CP0_EntryLo1 & 1;
tlb->V0 = (env->CP0_EntryLo0 & 2) != 0;
tlb->D0 = (env->CP0_EntryLo0 & 4) != 0;
tlb->C0 = (env->CP0_EntryLo0 >> 3) & 0x7;
tlb->XI0 = (env->CP0_EntryLo0 >> CP0EnLo_XI) & 1;
tlb->RI0 = (env->CP0_EntryLo0 >> CP0EnLo_RI) & 1;
tlb->PFN[0] = (get_tlb_pfn_from_entrylo(env->CP0_EntryLo0) & ~mask) << 12;
tlb->V1 = (env->CP0_EntryLo1 & 2) != 0;
tlb->D1 = (env->CP0_EntryLo1 & 4) != 0;
tlb->C1 = (env->CP0_EntryLo1 >> 3) & 0x7;
tlb->XI1 = (env->CP0_EntryLo1 >> CP0EnLo_XI) & 1;
tlb->RI1 = (env->CP0_EntryLo1 >> CP0EnLo_RI) & 1;
tlb->PFN[1] = (get_tlb_pfn_from_entrylo(env->CP0_EntryLo1) & ~mask) << 12;
}
void r4k_helper_tlbinv(CPUMIPSState *env)
{
bool mi = !!((env->CP0_Config5 >> CP0C5_MI) & 1);
uint16_t ASID = env->CP0_EntryHi & env->CP0_EntryHi_ASID_mask;
uint32_t MMID = env->CP0_MemoryMapID;
uint32_t tlb_mmid;
r4k_tlb_t *tlb;
int idx;
MMID = mi ? MMID : (uint32_t) ASID;
for (idx = 0; idx < env->tlb->nb_tlb; idx++) {
tlb = &env->tlb->mmu.r4k.tlb[idx];
tlb_mmid = mi ? tlb->MMID : (uint32_t) tlb->ASID;
if (!tlb->G && tlb_mmid == MMID) {
tlb->EHINV = 1;
}
}
cpu_mips_tlb_flush(env);
}
void r4k_helper_tlbinvf(CPUMIPSState *env)
{
int idx;
for (idx = 0; idx < env->tlb->nb_tlb; idx++) {
env->tlb->mmu.r4k.tlb[idx].EHINV = 1;
}
cpu_mips_tlb_flush(env);
}
void r4k_helper_tlbwi(CPUMIPSState *env)
{
bool mi = !!((env->CP0_Config5 >> CP0C5_MI) & 1);
target_ulong VPN;
uint16_t ASID = env->CP0_EntryHi & env->CP0_EntryHi_ASID_mask;
uint32_t MMID = env->CP0_MemoryMapID;
uint32_t tlb_mmid;
bool EHINV, G, V0, D0, V1, D1, XI0, XI1, RI0, RI1;
r4k_tlb_t *tlb;
int idx;
MMID = mi ? MMID : (uint32_t) ASID;
idx = (env->CP0_Index & ~0x80000000) % env->tlb->nb_tlb;
tlb = &env->tlb->mmu.r4k.tlb[idx];
VPN = env->CP0_EntryHi & (TARGET_PAGE_MASK << 1);
#if defined(TARGET_MIPS64)
VPN &= env->SEGMask;
#endif
EHINV = (env->CP0_EntryHi & (1 << CP0EnHi_EHINV)) != 0;
G = env->CP0_EntryLo0 & env->CP0_EntryLo1 & 1;
V0 = (env->CP0_EntryLo0 & 2) != 0;
D0 = (env->CP0_EntryLo0 & 4) != 0;
XI0 = (env->CP0_EntryLo0 >> CP0EnLo_XI) &1;
RI0 = (env->CP0_EntryLo0 >> CP0EnLo_RI) &1;
V1 = (env->CP0_EntryLo1 & 2) != 0;
D1 = (env->CP0_EntryLo1 & 4) != 0;
XI1 = (env->CP0_EntryLo1 >> CP0EnLo_XI) &1;
RI1 = (env->CP0_EntryLo1 >> CP0EnLo_RI) &1;
tlb_mmid = mi ? tlb->MMID : (uint32_t) tlb->ASID;
/*
* Discard cached TLB entries, unless tlbwi is just upgrading access
* permissions on the current entry.
*/
if (tlb->VPN != VPN || tlb_mmid != MMID || tlb->G != G ||
(!tlb->EHINV && EHINV) ||
(tlb->V0 && !V0) || (tlb->D0 && !D0) ||
(!tlb->XI0 && XI0) || (!tlb->RI0 && RI0) ||
(tlb->V1 && !V1) || (tlb->D1 && !D1) ||
(!tlb->XI1 && XI1) || (!tlb->RI1 && RI1)) {
r4k_mips_tlb_flush_extra(env, env->tlb->nb_tlb);
}
r4k_invalidate_tlb(env, idx, 0);
r4k_fill_tlb(env, idx);
}
void r4k_helper_tlbwr(CPUMIPSState *env)
{
int r = cpu_mips_get_random(env);
r4k_invalidate_tlb(env, r, 1);
r4k_fill_tlb(env, r);
}
void r4k_helper_tlbp(CPUMIPSState *env)
{
bool mi = !!((env->CP0_Config5 >> CP0C5_MI) & 1);
r4k_tlb_t *tlb;
target_ulong mask;
target_ulong tag;
target_ulong VPN;
uint16_t ASID = env->CP0_EntryHi & env->CP0_EntryHi_ASID_mask;
uint32_t MMID = env->CP0_MemoryMapID;
uint32_t tlb_mmid;
int i;
MMID = mi ? MMID : (uint32_t) ASID;
for (i = 0; i < env->tlb->nb_tlb; i++) {
tlb = &env->tlb->mmu.r4k.tlb[i];
/* 1k pages are not supported. */
mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
tag = env->CP0_EntryHi & ~mask;
VPN = tlb->VPN & ~mask;
#if defined(TARGET_MIPS64)
tag &= env->SEGMask;
#endif
tlb_mmid = mi ? tlb->MMID : (uint32_t) tlb->ASID;
/* Check ASID/MMID, virtual page number & size */
if ((tlb->G == 1 || tlb_mmid == MMID) && VPN == tag && !tlb->EHINV) {
/* TLB match */
env->CP0_Index = i;
break;
}
}
if (i == env->tlb->nb_tlb) {
/* No match. Discard any shadow entries, if any of them match. */
for (i = env->tlb->nb_tlb; i < env->tlb->tlb_in_use; i++) {
tlb = &env->tlb->mmu.r4k.tlb[i];
/* 1k pages are not supported. */
mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
tag = env->CP0_EntryHi & ~mask;
VPN = tlb->VPN & ~mask;
#if defined(TARGET_MIPS64)
tag &= env->SEGMask;
#endif
tlb_mmid = mi ? tlb->MMID : (uint32_t) tlb->ASID;
/* Check ASID/MMID, virtual page number & size */
if ((tlb->G == 1 || tlb_mmid == MMID) && VPN == tag) {
r4k_mips_tlb_flush_extra(env, i);
break;
}
}
env->CP0_Index |= 0x80000000;
}
}
static inline uint64_t get_entrylo_pfn_from_tlb(uint64_t tlb_pfn)
{
#if defined(TARGET_MIPS64)
return tlb_pfn << 6;
#else
return (extract64(tlb_pfn, 0, 24) << 6) | /* PFN */
(extract64(tlb_pfn, 24, 32) << 32); /* PFNX */
#endif
}
void r4k_helper_tlbr(CPUMIPSState *env)
{
bool mi = !!((env->CP0_Config5 >> CP0C5_MI) & 1);
uint16_t ASID = env->CP0_EntryHi & env->CP0_EntryHi_ASID_mask;
uint32_t MMID = env->CP0_MemoryMapID;
uint32_t tlb_mmid;
r4k_tlb_t *tlb;
int idx;
MMID = mi ? MMID : (uint32_t) ASID;
idx = (env->CP0_Index & ~0x80000000) % env->tlb->nb_tlb;
tlb = &env->tlb->mmu.r4k.tlb[idx];
tlb_mmid = mi ? tlb->MMID : (uint32_t) tlb->ASID;
/* If this will change the current ASID/MMID, flush qemu's TLB. */
if (MMID != tlb_mmid) {
cpu_mips_tlb_flush(env);
}
r4k_mips_tlb_flush_extra(env, env->tlb->nb_tlb);
if (tlb->EHINV) {
env->CP0_EntryHi = 1 << CP0EnHi_EHINV;
env->CP0_PageMask = 0;
env->CP0_EntryLo0 = 0;
env->CP0_EntryLo1 = 0;
} else {
env->CP0_EntryHi = mi ? tlb->VPN : tlb->VPN | tlb->ASID;
env->CP0_MemoryMapID = tlb->MMID;
env->CP0_PageMask = tlb->PageMask;
env->CP0_EntryLo0 = tlb->G | (tlb->V0 << 1) | (tlb->D0 << 2) |
((uint64_t)tlb->RI0 << CP0EnLo_RI) |
((uint64_t)tlb->XI0 << CP0EnLo_XI) | (tlb->C0 << 3) |
get_entrylo_pfn_from_tlb(tlb->PFN[0] >> 12);
env->CP0_EntryLo1 = tlb->G | (tlb->V1 << 1) | (tlb->D1 << 2) |
((uint64_t)tlb->RI1 << CP0EnLo_RI) |
((uint64_t)tlb->XI1 << CP0EnLo_XI) | (tlb->C1 << 3) |
get_entrylo_pfn_from_tlb(tlb->PFN[1] >> 12);
}
}
void helper_tlbwi(CPUMIPSState *env)
{
env->tlb->helper_tlbwi(env);
}
void helper_tlbwr(CPUMIPSState *env)
{
env->tlb->helper_tlbwr(env);
}
void helper_tlbp(CPUMIPSState *env)
{
env->tlb->helper_tlbp(env);
}
void helper_tlbr(CPUMIPSState *env)
{
env->tlb->helper_tlbr(env);
}
void helper_tlbinv(CPUMIPSState *env)
{
env->tlb->helper_tlbinv(env);
}
void helper_tlbinvf(CPUMIPSState *env)
{
env->tlb->helper_tlbinvf(env);
}
static void global_invalidate_tlb(CPUMIPSState *env,
uint32_t invMsgVPN2,
uint8_t invMsgR,
uint32_t invMsgMMid,
bool invAll,
bool invVAMMid,
bool invMMid,
bool invVA)
{
int idx;
r4k_tlb_t *tlb;
bool VAMatch;
bool MMidMatch;
for (idx = 0; idx < env->tlb->nb_tlb; idx++) {
tlb = &env->tlb->mmu.r4k.tlb[idx];
VAMatch =
(((tlb->VPN & ~tlb->PageMask) == (invMsgVPN2 & ~tlb->PageMask))
#ifdef TARGET_MIPS64
&&
(extract64(env->CP0_EntryHi, 62, 2) == invMsgR)
#endif
);
MMidMatch = tlb->MMID == invMsgMMid;
if ((invAll && (idx > env->CP0_Wired)) ||
(VAMatch && invVAMMid && (tlb->G || MMidMatch)) ||
(VAMatch && invVA) ||
(MMidMatch && !(tlb->G) && invMMid)) {
tlb->EHINV = 1;
}
}
cpu_mips_tlb_flush(env);
}
void helper_ginvt(CPUMIPSState *env, target_ulong arg, uint32_t type)
{
bool invAll = type == 0;
bool invVA = type == 1;
bool invMMid = type == 2;
bool invVAMMid = type == 3;
uint32_t invMsgVPN2 = arg & (TARGET_PAGE_MASK << 1);
uint8_t invMsgR = 0;
uint32_t invMsgMMid = env->CP0_MemoryMapID;
CPUState *other_cs = first_cpu;
#ifdef TARGET_MIPS64
invMsgR = extract64(arg, 62, 2);
#endif
CPU_FOREACH(other_cs) {
MIPSCPU *other_cpu = MIPS_CPU(other_cs);
global_invalidate_tlb(&other_cpu->env, invMsgVPN2, invMsgR, invMsgMMid,
invAll, invVAMMid, invMMid, invVA);
}
}
/* Specials */
target_ulong helper_di(CPUMIPSState *env)
{
target_ulong t0 = env->CP0_Status;
env->CP0_Status = t0 & ~(1 << CP0St_IE);
return t0;
}
target_ulong helper_ei(CPUMIPSState *env)
{
target_ulong t0 = env->CP0_Status;
env->CP0_Status = t0 | (1 << CP0St_IE);
return t0;
}
static void debug_pre_eret(CPUMIPSState *env)
{
if (qemu_loglevel_mask(CPU_LOG_EXEC)) {
qemu_log("ERET: PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx,
env->active_tc.PC, env->CP0_EPC);
if (env->CP0_Status & (1 << CP0St_ERL)) {
qemu_log(" ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
}
if (env->hflags & MIPS_HFLAG_DM) {
qemu_log(" DEPC " TARGET_FMT_lx, env->CP0_DEPC);
}
qemu_log("\n");
}
}
static void debug_post_eret(CPUMIPSState *env)
{
if (qemu_loglevel_mask(CPU_LOG_EXEC)) {
qemu_log(" => PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx,
env->active_tc.PC, env->CP0_EPC);
if (env->CP0_Status & (1 << CP0St_ERL)) {
qemu_log(" ErrorEPC " TARGET_FMT_lx, env->CP0_ErrorEPC);
}
if (env->hflags & MIPS_HFLAG_DM) {
qemu_log(" DEPC " TARGET_FMT_lx, env->CP0_DEPC);
}
switch (cpu_mmu_index(env, false)) {
case 3:
qemu_log(", ERL\n");
break;
case MIPS_HFLAG_UM:
qemu_log(", UM\n");
break;
case MIPS_HFLAG_SM:
qemu_log(", SM\n");
break;
case MIPS_HFLAG_KM:
qemu_log("\n");
break;
default:
cpu_abort(env_cpu(env), "Invalid MMU mode!\n");
break;
}
}
}
static void set_pc(CPUMIPSState *env, target_ulong error_pc)
{
env->active_tc.PC = error_pc & ~(target_ulong)1;
if (error_pc & 1) {
env->hflags |= MIPS_HFLAG_M16;
} else {
env->hflags &= ~(MIPS_HFLAG_M16);
}
}
static inline void exception_return(CPUMIPSState *env)
{
debug_pre_eret(env);
if (env->CP0_Status & (1 << CP0St_ERL)) {
set_pc(env, env->CP0_ErrorEPC);
env->CP0_Status &= ~(1 << CP0St_ERL);
} else {
set_pc(env, env->CP0_EPC);
env->CP0_Status &= ~(1 << CP0St_EXL);
}
compute_hflags(env);
debug_post_eret(env);
}
void helper_eret(CPUMIPSState *env)
{
exception_return(env);
env->CP0_LLAddr = 1;
env->lladdr = 1;
}
void helper_eretnc(CPUMIPSState *env)
{
exception_return(env);
}
void helper_deret(CPUMIPSState *env)
{
debug_pre_eret(env);
env->hflags &= ~MIPS_HFLAG_DM;
compute_hflags(env);
set_pc(env, env->CP0_DEPC);
debug_post_eret(env);
}
#endif /* !CONFIG_USER_ONLY */
static inline void check_hwrena(CPUMIPSState *env, int reg, uintptr_t pc)
{
if ((env->hflags & MIPS_HFLAG_CP0) || (env->CP0_HWREna & (1 << reg))) {
return;
}
do_raise_exception(env, EXCP_RI, pc);
}
target_ulong helper_rdhwr_cpunum(CPUMIPSState *env)
{
check_hwrena(env, 0, GETPC());
return env->CP0_EBase & 0x3ff;
}
target_ulong helper_rdhwr_synci_step(CPUMIPSState *env)
{
check_hwrena(env, 1, GETPC());
return env->SYNCI_Step;
}
target_ulong helper_rdhwr_cc(CPUMIPSState *env)
{
check_hwrena(env, 2, GETPC());
#ifdef CONFIG_USER_ONLY
return env->CP0_Count;
#else
return (int32_t)cpu_mips_get_count(env);
#endif
}
target_ulong helper_rdhwr_ccres(CPUMIPSState *env)
{
check_hwrena(env, 3, GETPC());
return env->CCRes;
}
target_ulong helper_rdhwr_performance(CPUMIPSState *env)
{
check_hwrena(env, 4, GETPC());
return env->CP0_Performance0;
}
target_ulong helper_rdhwr_xnp(CPUMIPSState *env)
{
check_hwrena(env, 5, GETPC());
return (env->CP0_Config5 >> CP0C5_XNP) & 1;
}
void helper_pmon(CPUMIPSState *env, int function)
{
function /= 2;
switch (function) {
case 2: /* TODO: char inbyte(int waitflag); */
if (env->active_tc.gpr[4] == 0) {
env->active_tc.gpr[2] = -1;
}
/* Fall through */
case 11: /* TODO: char inbyte (void); */
env->active_tc.gpr[2] = -1;
break;
case 3:
case 12:
printf("%c", (char)(env->active_tc.gpr[4] & 0xFF));
break;
case 17:
break;
case 158:
{
unsigned char *fmt = (void *)(uintptr_t)env->active_tc.gpr[4];
printf("%s", fmt);
}
break;
}
}
void helper_wait(CPUMIPSState *env)
{
CPUState *cs = env_cpu(env);
cs->halted = 1;
cpu_reset_interrupt(cs, CPU_INTERRUPT_WAKE);
/*
* Last instruction in the block, PC was updated before
* - no need to recover PC and icount.
*/
raise_exception(env, EXCP_HLT);
}
#if !defined(CONFIG_USER_ONLY)
void mips_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
MMUAccessType access_type,
int mmu_idx, uintptr_t retaddr)
{
MIPSCPU *cpu = MIPS_CPU(cs);
CPUMIPSState *env = &cpu->env;
int error_code = 0;
int excp;
if (!(env->hflags & MIPS_HFLAG_DM)) {
env->CP0_BadVAddr = addr;
}
if (access_type == MMU_DATA_STORE) {
excp = EXCP_AdES;
} else {
excp = EXCP_AdEL;
if (access_type == MMU_INST_FETCH) {
error_code |= EXCP_INST_NOTAVAIL;
}
}
do_raise_exception_err(env, excp, error_code, retaddr);
}
void mips_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr,
vaddr addr, unsigned size,
MMUAccessType access_type,
int mmu_idx, MemTxAttrs attrs,
MemTxResult response, uintptr_t retaddr)
{
MIPSCPU *cpu = MIPS_CPU(cs);
CPUMIPSState *env = &cpu->env;
if (access_type == MMU_INST_FETCH) {
do_raise_exception(env, EXCP_IBE, retaddr);
} else {
do_raise_exception(env, EXCP_DBE, retaddr);
}
}
#endif /* !CONFIG_USER_ONLY */
/* MSA */
/* Data format min and max values */
#define DF_BITS(df) (1 << ((df) + 3))
/* Element-by-element access macros */
#define DF_ELEMENTS(df) (MSA_WRLEN / DF_BITS(df))
#if !defined(CONFIG_USER_ONLY)
#define MEMOP_IDX(DF) \
TCGMemOpIdx oi = make_memop_idx(MO_TE | DF | MO_UNALN, \
cpu_mmu_index(env, false));
#else
#define MEMOP_IDX(DF)
#endif
void helper_msa_ld_b(CPUMIPSState *env, uint32_t wd,
target_ulong addr)
{
wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
MEMOP_IDX(DF_BYTE)
#if !defined(CONFIG_USER_ONLY)
#if !defined(HOST_WORDS_BIGENDIAN)
pwd->b[0] = helper_ret_ldub_mmu(env, addr + (0 << DF_BYTE), oi, GETPC());
pwd->b[1] = helper_ret_ldub_mmu(env, addr + (1 << DF_BYTE), oi, GETPC());
pwd->b[2] = helper_ret_ldub_mmu(env, addr + (2 << DF_BYTE), oi, GETPC());
pwd->b[3] = helper_ret_ldub_mmu(env, addr + (3 << DF_BYTE), oi, GETPC());
pwd->b[4] = helper_ret_ldub_mmu(env, addr + (4 << DF_BYTE), oi, GETPC());
pwd->b[5] = helper_ret_ldub_mmu(env, addr + (5 << DF_BYTE), oi, GETPC());
pwd->b[6] = helper_ret_ldub_mmu(env, addr + (6 << DF_BYTE), oi, GETPC());
pwd->b[7] = helper_ret_ldub_mmu(env, addr + (7 << DF_BYTE), oi, GETPC());
pwd->b[8] = helper_ret_ldub_mmu(env, addr + (8 << DF_BYTE), oi, GETPC());
pwd->b[9] = helper_ret_ldub_mmu(env, addr + (9 << DF_BYTE), oi, GETPC());
pwd->b[10] = helper_ret_ldub_mmu(env, addr + (10 << DF_BYTE), oi, GETPC());
pwd->b[11] = helper_ret_ldub_mmu(env, addr + (11 << DF_BYTE), oi, GETPC());
pwd->b[12] = helper_ret_ldub_mmu(env, addr + (12 << DF_BYTE), oi, GETPC());
pwd->b[13] = helper_ret_ldub_mmu(env, addr + (13 << DF_BYTE), oi, GETPC());
pwd->b[14] = helper_ret_ldub_mmu(env, addr + (14 << DF_BYTE), oi, GETPC());
pwd->b[15] = helper_ret_ldub_mmu(env, addr + (15 << DF_BYTE), oi, GETPC());
#else
pwd->b[0] = helper_ret_ldub_mmu(env, addr + (7 << DF_BYTE), oi, GETPC());
pwd->b[1] = helper_ret_ldub_mmu(env, addr + (6 << DF_BYTE), oi, GETPC());
pwd->b[2] = helper_ret_ldub_mmu(env, addr + (5 << DF_BYTE), oi, GETPC());
pwd->b[3] = helper_ret_ldub_mmu(env, addr + (4 << DF_BYTE), oi, GETPC());
pwd->b[4] = helper_ret_ldub_mmu(env, addr + (3 << DF_BYTE), oi, GETPC());
pwd->b[5] = helper_ret_ldub_mmu(env, addr + (2 << DF_BYTE), oi, GETPC());
pwd->b[6] = helper_ret_ldub_mmu(env, addr + (1 << DF_BYTE), oi, GETPC());
pwd->b[7] = helper_ret_ldub_mmu(env, addr + (0 << DF_BYTE), oi, GETPC());
pwd->b[8] = helper_ret_ldub_mmu(env, addr + (15 << DF_BYTE), oi, GETPC());
pwd->b[9] = helper_ret_ldub_mmu(env, addr + (14 << DF_BYTE), oi, GETPC());
pwd->b[10] = helper_ret_ldub_mmu(env, addr + (13 << DF_BYTE), oi, GETPC());
pwd->b[11] = helper_ret_ldub_mmu(env, addr + (12 << DF_BYTE), oi, GETPC());
pwd->b[12] = helper_ret_ldub_mmu(env, addr + (11 << DF_BYTE), oi, GETPC());
pwd->b[13] = helper_ret_ldub_mmu(env, addr + (10 << DF_BYTE), oi, GETPC());
pwd->b[14] = helper_ret_ldub_mmu(env, addr + (9 << DF_BYTE), oi, GETPC());
pwd->b[15] = helper_ret_ldub_mmu(env, addr + (8 << DF_BYTE), oi, GETPC());
#endif
#else
#if !defined(HOST_WORDS_BIGENDIAN)
pwd->b[0] = cpu_ldub_data(env, addr + (0 << DF_BYTE));
pwd->b[1] = cpu_ldub_data(env, addr + (1 << DF_BYTE));
pwd->b[2] = cpu_ldub_data(env, addr + (2 << DF_BYTE));
pwd->b[3] = cpu_ldub_data(env, addr + (3 << DF_BYTE));
pwd->b[4] = cpu_ldub_data(env, addr + (4 << DF_BYTE));
pwd->b[5] = cpu_ldub_data(env, addr + (5 << DF_BYTE));
pwd->b[6] = cpu_ldub_data(env, addr + (6 << DF_BYTE));
pwd->b[7] = cpu_ldub_data(env, addr + (7 << DF_BYTE));
pwd->b[8] = cpu_ldub_data(env, addr + (8 << DF_BYTE));
pwd->b[9] = cpu_ldub_data(env, addr + (9 << DF_BYTE));
pwd->b[10] = cpu_ldub_data(env, addr + (10 << DF_BYTE));
pwd->b[11] = cpu_ldub_data(env, addr + (11 << DF_BYTE));
pwd->b[12] = cpu_ldub_data(env, addr + (12 << DF_BYTE));
pwd->b[13] = cpu_ldub_data(env, addr + (13 << DF_BYTE));
pwd->b[14] = cpu_ldub_data(env, addr + (14 << DF_BYTE));
pwd->b[15] = cpu_ldub_data(env, addr + (15 << DF_BYTE));
#else
pwd->b[0] = cpu_ldub_data(env, addr + (7 << DF_BYTE));
pwd->b[1] = cpu_ldub_data(env, addr + (6 << DF_BYTE));
pwd->b[2] = cpu_ldub_data(env, addr + (5 << DF_BYTE));
pwd->b[3] = cpu_ldub_data(env, addr + (4 << DF_BYTE));
pwd->b[4] = cpu_ldub_data(env, addr + (3 << DF_BYTE));
pwd->b[5] = cpu_ldub_data(env, addr + (2 << DF_BYTE));
pwd->b[6] = cpu_ldub_data(env, addr + (1 << DF_BYTE));
pwd->b[7] = cpu_ldub_data(env, addr + (0 << DF_BYTE));
pwd->b[8] = cpu_ldub_data(env, addr + (15 << DF_BYTE));
pwd->b[9] = cpu_ldub_data(env, addr + (14 << DF_BYTE));
pwd->b[10] = cpu_ldub_data(env, addr + (13 << DF_BYTE));
pwd->b[11] = cpu_ldub_data(env, addr + (12 << DF_BYTE));
pwd->b[12] = cpu_ldub_data(env, addr + (11 << DF_BYTE));
pwd->b[13] = cpu_ldub_data(env, addr + (10 << DF_BYTE));
pwd->b[14] = cpu_ldub_data(env, addr + (9 << DF_BYTE));
pwd->b[15] = cpu_ldub_data(env, addr + (8 << DF_BYTE));
#endif
#endif
}
void helper_msa_ld_h(CPUMIPSState *env, uint32_t wd,
target_ulong addr)
{
wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
MEMOP_IDX(DF_HALF)
#if !defined(CONFIG_USER_ONLY)
#if !defined(HOST_WORDS_BIGENDIAN)
pwd->h[0] = helper_ret_lduw_mmu(env, addr + (0 << DF_HALF), oi, GETPC());
pwd->h[1] = helper_ret_lduw_mmu(env, addr + (1 << DF_HALF), oi, GETPC());
pwd->h[2] = helper_ret_lduw_mmu(env, addr + (2 << DF_HALF), oi, GETPC());
pwd->h[3] = helper_ret_lduw_mmu(env, addr + (3 << DF_HALF), oi, GETPC());
pwd->h[4] = helper_ret_lduw_mmu(env, addr + (4 << DF_HALF), oi, GETPC());
pwd->h[5] = helper_ret_lduw_mmu(env, addr + (5 << DF_HALF), oi, GETPC());
pwd->h[6] = helper_ret_lduw_mmu(env, addr + (6 << DF_HALF), oi, GETPC());
pwd->h[7] = helper_ret_lduw_mmu(env, addr + (7 << DF_HALF), oi, GETPC());
#else
pwd->h[0] = helper_ret_lduw_mmu(env, addr + (3 << DF_HALF), oi, GETPC());
pwd->h[1] = helper_ret_lduw_mmu(env, addr + (2 << DF_HALF), oi, GETPC());
pwd->h[2] = helper_ret_lduw_mmu(env, addr + (1 << DF_HALF), oi, GETPC());
pwd->h[3] = helper_ret_lduw_mmu(env, addr + (0 << DF_HALF), oi, GETPC());
pwd->h[4] = helper_ret_lduw_mmu(env, addr + (7 << DF_HALF), oi, GETPC());
pwd->h[5] = helper_ret_lduw_mmu(env, addr + (6 << DF_HALF), oi, GETPC());
pwd->h[6] = helper_ret_lduw_mmu(env, addr + (5 << DF_HALF), oi, GETPC());
pwd->h[7] = helper_ret_lduw_mmu(env, addr + (4 << DF_HALF), oi, GETPC());
#endif
#else
#if !defined(HOST_WORDS_BIGENDIAN)
pwd->h[0] = cpu_lduw_data(env, addr + (0 << DF_HALF));
pwd->h[1] = cpu_lduw_data(env, addr + (1 << DF_HALF));
pwd->h[2] = cpu_lduw_data(env, addr + (2 << DF_HALF));
pwd->h[3] = cpu_lduw_data(env, addr + (3 << DF_HALF));
pwd->h[4] = cpu_lduw_data(env, addr + (4 << DF_HALF));
pwd->h[5] = cpu_lduw_data(env, addr + (5 << DF_HALF));
pwd->h[6] = cpu_lduw_data(env, addr + (6 << DF_HALF));
pwd->h[7] = cpu_lduw_data(env, addr + (7 << DF_HALF));
#else
pwd->h[0] = cpu_lduw_data(env, addr + (3 << DF_HALF));
pwd->h[1] = cpu_lduw_data(env, addr + (2 << DF_HALF));
pwd->h[2] = cpu_lduw_data(env, addr + (1 << DF_HALF));
pwd->h[3] = cpu_lduw_data(env, addr + (0 << DF_HALF));
pwd->h[4] = cpu_lduw_data(env, addr + (7 << DF_HALF));
pwd->h[5] = cpu_lduw_data(env, addr + (6 << DF_HALF));
pwd->h[6] = cpu_lduw_data(env, addr + (5 << DF_HALF));
pwd->h[7] = cpu_lduw_data(env, addr + (4 << DF_HALF));
#endif
#endif
}
void helper_msa_ld_w(CPUMIPSState *env, uint32_t wd,
target_ulong addr)
{
wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
MEMOP_IDX(DF_WORD)
#if !defined(CONFIG_USER_ONLY)
#if !defined(HOST_WORDS_BIGENDIAN)
pwd->w[0] = helper_ret_ldul_mmu(env, addr + (0 << DF_WORD), oi, GETPC());
pwd->w[1] = helper_ret_ldul_mmu(env, addr + (1 << DF_WORD), oi, GETPC());
pwd->w[2] = helper_ret_ldul_mmu(env, addr + (2 << DF_WORD), oi, GETPC());
pwd->w[3] = helper_ret_ldul_mmu(env, addr + (3 << DF_WORD), oi, GETPC());
#else
pwd->w[0] = helper_ret_ldul_mmu(env, addr + (1 << DF_WORD), oi, GETPC());
pwd->w[1] = helper_ret_ldul_mmu(env, addr + (0 << DF_WORD), oi, GETPC());
pwd->w[2] = helper_ret_ldul_mmu(env, addr + (3 << DF_WORD), oi, GETPC());
pwd->w[3] = helper_ret_ldul_mmu(env, addr + (2 << DF_WORD), oi, GETPC());
#endif
#else
#if !defined(HOST_WORDS_BIGENDIAN)
pwd->w[0] = cpu_ldl_data(env, addr + (0 << DF_WORD));
pwd->w[1] = cpu_ldl_data(env, addr + (1 << DF_WORD));
pwd->w[2] = cpu_ldl_data(env, addr + (2 << DF_WORD));
pwd->w[3] = cpu_ldl_data(env, addr + (3 << DF_WORD));
#else
pwd->w[0] = cpu_ldl_data(env, addr + (1 << DF_WORD));
pwd->w[1] = cpu_ldl_data(env, addr + (0 << DF_WORD));
pwd->w[2] = cpu_ldl_data(env, addr + (3 << DF_WORD));
pwd->w[3] = cpu_ldl_data(env, addr + (2 << DF_WORD));
#endif
#endif
}
void helper_msa_ld_d(CPUMIPSState *env, uint32_t wd,
target_ulong addr)
{
wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
MEMOP_IDX(DF_DOUBLE)
#if !defined(CONFIG_USER_ONLY)
pwd->d[0] = helper_ret_ldq_mmu(env, addr + (0 << DF_DOUBLE), oi, GETPC());
pwd->d[1] = helper_ret_ldq_mmu(env, addr + (1 << DF_DOUBLE), oi, GETPC());
#else
pwd->d[0] = cpu_ldq_data(env, addr + (0 << DF_DOUBLE));
pwd->d[1] = cpu_ldq_data(env, addr + (1 << DF_DOUBLE));
#endif
}
#define MSA_PAGESPAN(x) \
((((x) & ~TARGET_PAGE_MASK) + MSA_WRLEN / 8 - 1) >= TARGET_PAGE_SIZE)
static inline void ensure_writable_pages(CPUMIPSState *env,
target_ulong addr,
int mmu_idx,
uintptr_t retaddr)
{
/* FIXME: Probe the actual accesses (pass and use a size) */
if (unlikely(MSA_PAGESPAN(addr))) {
/* first page */
probe_write(env, addr, 0, mmu_idx, retaddr);
/* second page */
addr = (addr & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
probe_write(env, addr, 0, mmu_idx, retaddr);
}
}
void helper_msa_st_b(CPUMIPSState *env, uint32_t wd,
target_ulong addr)
{
wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
int mmu_idx = cpu_mmu_index(env, false);
MEMOP_IDX(DF_BYTE)
ensure_writable_pages(env, addr, mmu_idx, GETPC());
#if !defined(CONFIG_USER_ONLY)
#if !defined(HOST_WORDS_BIGENDIAN)
helper_ret_stb_mmu(env, addr + (0 << DF_BYTE), pwd->b[0], oi, GETPC());
helper_ret_stb_mmu(env, addr + (1 << DF_BYTE), pwd->b[1], oi, GETPC());
helper_ret_stb_mmu(env, addr + (2 << DF_BYTE), pwd->b[2], oi, GETPC());
helper_ret_stb_mmu(env, addr + (3 << DF_BYTE), pwd->b[3], oi, GETPC());
helper_ret_stb_mmu(env, addr + (4 << DF_BYTE), pwd->b[4], oi, GETPC());
helper_ret_stb_mmu(env, addr + (5 << DF_BYTE), pwd->b[5], oi, GETPC());
helper_ret_stb_mmu(env, addr + (6 << DF_BYTE), pwd->b[6], oi, GETPC());
helper_ret_stb_mmu(env, addr + (7 << DF_BYTE), pwd->b[7], oi, GETPC());
helper_ret_stb_mmu(env, addr + (8 << DF_BYTE), pwd->b[8], oi, GETPC());
helper_ret_stb_mmu(env, addr + (9 << DF_BYTE), pwd->b[9], oi, GETPC());
helper_ret_stb_mmu(env, addr + (10 << DF_BYTE), pwd->b[10], oi, GETPC());
helper_ret_stb_mmu(env, addr + (11 << DF_BYTE), pwd->b[11], oi, GETPC());
helper_ret_stb_mmu(env, addr + (12 << DF_BYTE), pwd->b[12], oi, GETPC());
helper_ret_stb_mmu(env, addr + (13 << DF_BYTE), pwd->b[13], oi, GETPC());
helper_ret_stb_mmu(env, addr + (14 << DF_BYTE), pwd->b[14], oi, GETPC());
helper_ret_stb_mmu(env, addr + (15 << DF_BYTE), pwd->b[15], oi, GETPC());
#else
helper_ret_stb_mmu(env, addr + (7 << DF_BYTE), pwd->b[0], oi, GETPC());
helper_ret_stb_mmu(env, addr + (6 << DF_BYTE), pwd->b[1], oi, GETPC());
helper_ret_stb_mmu(env, addr + (5 << DF_BYTE), pwd->b[2], oi, GETPC());
helper_ret_stb_mmu(env, addr + (4 << DF_BYTE), pwd->b[3], oi, GETPC());
helper_ret_stb_mmu(env, addr + (3 << DF_BYTE), pwd->b[4], oi, GETPC());
helper_ret_stb_mmu(env, addr + (2 << DF_BYTE), pwd->b[5], oi, GETPC());
helper_ret_stb_mmu(env, addr + (1 << DF_BYTE), pwd->b[6], oi, GETPC());
helper_ret_stb_mmu(env, addr + (0 << DF_BYTE), pwd->b[7], oi, GETPC());
helper_ret_stb_mmu(env, addr + (15 << DF_BYTE), pwd->b[8], oi, GETPC());
helper_ret_stb_mmu(env, addr + (14 << DF_BYTE), pwd->b[9], oi, GETPC());
helper_ret_stb_mmu(env, addr + (13 << DF_BYTE), pwd->b[10], oi, GETPC());
helper_ret_stb_mmu(env, addr + (12 << DF_BYTE), pwd->b[11], oi, GETPC());
helper_ret_stb_mmu(env, addr + (11 << DF_BYTE), pwd->b[12], oi, GETPC());
helper_ret_stb_mmu(env, addr + (10 << DF_BYTE), pwd->b[13], oi, GETPC());
helper_ret_stb_mmu(env, addr + (9 << DF_BYTE), pwd->b[14], oi, GETPC());
helper_ret_stb_mmu(env, addr + (8 << DF_BYTE), pwd->b[15], oi, GETPC());
#endif
#else
#if !defined(HOST_WORDS_BIGENDIAN)
cpu_stb_data(env, addr + (0 << DF_BYTE), pwd->b[0]);
cpu_stb_data(env, addr + (1 << DF_BYTE), pwd->b[1]);
cpu_stb_data(env, addr + (2 << DF_BYTE), pwd->b[2]);
cpu_stb_data(env, addr + (3 << DF_BYTE), pwd->b[3]);
cpu_stb_data(env, addr + (4 << DF_BYTE), pwd->b[4]);
cpu_stb_data(env, addr + (5 << DF_BYTE), pwd->b[5]);
cpu_stb_data(env, addr + (6 << DF_BYTE), pwd->b[6]);
cpu_stb_data(env, addr + (7 << DF_BYTE), pwd->b[7]);
cpu_stb_data(env, addr + (8 << DF_BYTE), pwd->b[8]);
cpu_stb_data(env, addr + (9 << DF_BYTE), pwd->b[9]);
cpu_stb_data(env, addr + (10 << DF_BYTE), pwd->b[10]);
cpu_stb_data(env, addr + (11 << DF_BYTE), pwd->b[11]);
cpu_stb_data(env, addr + (12 << DF_BYTE), pwd->b[12]);
cpu_stb_data(env, addr + (13 << DF_BYTE), pwd->b[13]);
cpu_stb_data(env, addr + (14 << DF_BYTE), pwd->b[14]);
cpu_stb_data(env, addr + (15 << DF_BYTE), pwd->b[15]);
#else
cpu_stb_data(env, addr + (7 << DF_BYTE), pwd->b[0]);
cpu_stb_data(env, addr + (6 << DF_BYTE), pwd->b[1]);
cpu_stb_data(env, addr + (5 << DF_BYTE), pwd->b[2]);
cpu_stb_data(env, addr + (4 << DF_BYTE), pwd->b[3]);
cpu_stb_data(env, addr + (3 << DF_BYTE), pwd->b[4]);
cpu_stb_data(env, addr + (2 << DF_BYTE), pwd->b[5]);
cpu_stb_data(env, addr + (1 << DF_BYTE), pwd->b[6]);
cpu_stb_data(env, addr + (0 << DF_BYTE), pwd->b[7]);
cpu_stb_data(env, addr + (15 << DF_BYTE), pwd->b[8]);
cpu_stb_data(env, addr + (14 << DF_BYTE), pwd->b[9]);
cpu_stb_data(env, addr + (13 << DF_BYTE), pwd->b[10]);
cpu_stb_data(env, addr + (12 << DF_BYTE), pwd->b[11]);
cpu_stb_data(env, addr + (11 << DF_BYTE), pwd->b[12]);
cpu_stb_data(env, addr + (10 << DF_BYTE), pwd->b[13]);
cpu_stb_data(env, addr + (9 << DF_BYTE), pwd->b[14]);
cpu_stb_data(env, addr + (8 << DF_BYTE), pwd->b[15]);
#endif
#endif
}
void helper_msa_st_h(CPUMIPSState *env, uint32_t wd,
target_ulong addr)
{
wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
int mmu_idx = cpu_mmu_index(env, false);
MEMOP_IDX(DF_HALF)
ensure_writable_pages(env, addr, mmu_idx, GETPC());
#if !defined(CONFIG_USER_ONLY)
#if !defined(HOST_WORDS_BIGENDIAN)
helper_ret_stw_mmu(env, addr + (0 << DF_HALF), pwd->h[0], oi, GETPC());
helper_ret_stw_mmu(env, addr + (1 << DF_HALF), pwd->h[1], oi, GETPC());
helper_ret_stw_mmu(env, addr + (2 << DF_HALF), pwd->h[2], oi, GETPC());
helper_ret_stw_mmu(env, addr + (3 << DF_HALF), pwd->h[3], oi, GETPC());
helper_ret_stw_mmu(env, addr + (4 << DF_HALF), pwd->h[4], oi, GETPC());
helper_ret_stw_mmu(env, addr + (5 << DF_HALF), pwd->h[5], oi, GETPC());
helper_ret_stw_mmu(env, addr + (6 << DF_HALF), pwd->h[6], oi, GETPC());
helper_ret_stw_mmu(env, addr + (7 << DF_HALF), pwd->h[7], oi, GETPC());
#else
helper_ret_stw_mmu(env, addr + (3 << DF_HALF), pwd->h[0], oi, GETPC());
helper_ret_stw_mmu(env, addr + (2 << DF_HALF), pwd->h[1], oi, GETPC());
helper_ret_stw_mmu(env, addr + (1 << DF_HALF), pwd->h[2], oi, GETPC());
helper_ret_stw_mmu(env, addr + (0 << DF_HALF), pwd->h[3], oi, GETPC());
helper_ret_stw_mmu(env, addr + (7 << DF_HALF), pwd->h[4], oi, GETPC());
helper_ret_stw_mmu(env, addr + (6 << DF_HALF), pwd->h[5], oi, GETPC());
helper_ret_stw_mmu(env, addr + (5 << DF_HALF), pwd->h[6], oi, GETPC());
helper_ret_stw_mmu(env, addr + (4 << DF_HALF), pwd->h[7], oi, GETPC());
#endif
#else
#if !defined(HOST_WORDS_BIGENDIAN)
cpu_stw_data(env, addr + (0 << DF_HALF), pwd->h[0]);
cpu_stw_data(env, addr + (1 << DF_HALF), pwd->h[1]);
cpu_stw_data(env, addr + (2 << DF_HALF), pwd->h[2]);
cpu_stw_data(env, addr + (3 << DF_HALF), pwd->h[3]);
cpu_stw_data(env, addr + (4 << DF_HALF), pwd->h[4]);
cpu_stw_data(env, addr + (5 << DF_HALF), pwd->h[5]);
cpu_stw_data(env, addr + (6 << DF_HALF), pwd->h[6]);
cpu_stw_data(env, addr + (7 << DF_HALF), pwd->h[7]);
#else
cpu_stw_data(env, addr + (3 << DF_HALF), pwd->h[0]);
cpu_stw_data(env, addr + (2 << DF_HALF), pwd->h[1]);
cpu_stw_data(env, addr + (1 << DF_HALF), pwd->h[2]);
cpu_stw_data(env, addr + (0 << DF_HALF), pwd->h[3]);
cpu_stw_data(env, addr + (7 << DF_HALF), pwd->h[4]);
cpu_stw_data(env, addr + (6 << DF_HALF), pwd->h[5]);
cpu_stw_data(env, addr + (5 << DF_HALF), pwd->h[6]);
cpu_stw_data(env, addr + (4 << DF_HALF), pwd->h[7]);
#endif
#endif
}
void helper_msa_st_w(CPUMIPSState *env, uint32_t wd,
target_ulong addr)
{
wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
int mmu_idx = cpu_mmu_index(env, false);
MEMOP_IDX(DF_WORD)
ensure_writable_pages(env, addr, mmu_idx, GETPC());
#if !defined(CONFIG_USER_ONLY)
#if !defined(HOST_WORDS_BIGENDIAN)
helper_ret_stl_mmu(env, addr + (0 << DF_WORD), pwd->w[0], oi, GETPC());
helper_ret_stl_mmu(env, addr + (1 << DF_WORD), pwd->w[1], oi, GETPC());
helper_ret_stl_mmu(env, addr + (2 << DF_WORD), pwd->w[2], oi, GETPC());
helper_ret_stl_mmu(env, addr + (3 << DF_WORD), pwd->w[3], oi, GETPC());
#else
helper_ret_stl_mmu(env, addr + (1 << DF_WORD), pwd->w[0], oi, GETPC());
helper_ret_stl_mmu(env, addr + (0 << DF_WORD), pwd->w[1], oi, GETPC());
helper_ret_stl_mmu(env, addr + (3 << DF_WORD), pwd->w[2], oi, GETPC());
helper_ret_stl_mmu(env, addr + (2 << DF_WORD), pwd->w[3], oi, GETPC());
#endif
#else
#if !defined(HOST_WORDS_BIGENDIAN)
cpu_stl_data(env, addr + (0 << DF_WORD), pwd->w[0]);
cpu_stl_data(env, addr + (1 << DF_WORD), pwd->w[1]);
cpu_stl_data(env, addr + (2 << DF_WORD), pwd->w[2]);
cpu_stl_data(env, addr + (3 << DF_WORD), pwd->w[3]);
#else
cpu_stl_data(env, addr + (1 << DF_WORD), pwd->w[0]);
cpu_stl_data(env, addr + (0 << DF_WORD), pwd->w[1]);
cpu_stl_data(env, addr + (3 << DF_WORD), pwd->w[2]);
cpu_stl_data(env, addr + (2 << DF_WORD), pwd->w[3]);
#endif
#endif
}
void helper_msa_st_d(CPUMIPSState *env, uint32_t wd,
target_ulong addr)
{
wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
int mmu_idx = cpu_mmu_index(env, false);
MEMOP_IDX(DF_DOUBLE)
ensure_writable_pages(env, addr, mmu_idx, GETPC());
#if !defined(CONFIG_USER_ONLY)
helper_ret_stq_mmu(env, addr + (0 << DF_DOUBLE), pwd->d[0], oi, GETPC());
helper_ret_stq_mmu(env, addr + (1 << DF_DOUBLE), pwd->d[1], oi, GETPC());
#else
cpu_stq_data(env, addr + (0 << DF_DOUBLE), pwd->d[0]);
cpu_stq_data(env, addr + (1 << DF_DOUBLE), pwd->d[1]);
#endif
}
void helper_cache(CPUMIPSState *env, target_ulong addr, uint32_t op)
{
#ifndef CONFIG_USER_ONLY
static const char *const type_name[] = {
"Primary Instruction",
"Primary Data or Unified Primary",
"Tertiary",
"Secondary"
};
uint32_t cache_type = extract32(op, 0, 2);
uint32_t cache_operation = extract32(op, 2, 3);
target_ulong index = addr & 0x1fffffff;
switch (cache_operation) {
case 0b010: /* Index Store Tag */
memory_region_dispatch_write(env->itc_tag, index, env->CP0_TagLo,
MO_64, MEMTXATTRS_UNSPECIFIED);
break;
case 0b001: /* Index Load Tag */
memory_region_dispatch_read(env->itc_tag, index, &env->CP0_TagLo,
MO_64, MEMTXATTRS_UNSPECIFIED);
break;
case 0b000: /* Index Invalidate */
case 0b100: /* Hit Invalidate */
case 0b110: /* Hit Writeback */
/* no-op */
break;
default:
qemu_log_mask(LOG_UNIMP, "cache operation:%u (type: %s cache)\n",
cache_operation, type_name[cache_type]);
break;
}
#endif
}
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