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target/mips: Amend CP0 WatchHi register implementation

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WatchHi is extended by the field MemoryMapID with the GINVT instruction.
The field is accessible by MTHC0/MFHC0 in 32-bit architectures and DMTC0/
DMFC0 in 64-bit architectures.

Reviewed-by: Aleksandar Rikalo <aleksandar.rikalo@rt-rk.com>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1579883929-1517-4-git-send-email-aleksandar.markovic@rt-rk.com>
This commit is contained in:
Yongbok Kim
2019-12-20 10:34:09 +01:00
committed by Aleksandar Markovic
parent 6cdda0ff4b
commit feafe82cc2
5 changed files with 69 additions and 7 deletions
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23
target/mips/op_helper.c
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@@ -945,7 +945,12 @@ target_ulong helper_mfc0_watchlo(CPUMIPSState *env, uint32_t sel)
target_ulong helper_mfc0_watchhi(CPUMIPSState *env, uint32_t sel)
{
return env->CP0_WatchHi[sel];
return (int32_t) env->CP0_WatchHi[sel];
}
target_ulong helper_mfhc0_watchhi(CPUMIPSState *env, uint32_t sel)
{
return env->CP0_WatchHi[sel] >> 32;
}
target_ulong helper_mfc0_debug(CPUMIPSState *env)
@@ -1016,6 +1021,11 @@ target_ulong helper_dmfc0_watchlo(CPUMIPSState *env, uint32_t sel)
return env->CP0_WatchLo[sel];
}
target_ulong helper_dmfc0_watchhi(CPUMIPSState *env, uint32_t sel)
{
return env->CP0_WatchHi[sel];
}
target_ulong helper_dmfc0_saar(CPUMIPSState *env)
{
if ((env->CP0_SAARI & 0x3f) < 2) {
@@ -1869,11 +1879,20 @@ void helper_mtc0_watchlo(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
void helper_mtc0_watchhi(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
{
int mask = 0x40000FF8 | (env->CP0_EntryHi_ASID_mask << CP0WH_ASID);
uint64_t mask = 0x40000FF8 | (env->CP0_EntryHi_ASID_mask << CP0WH_ASID);
if ((env->CP0_Config5 >> CP0C5_MI) & 1) {
mask |= 0xFFFFFFFF00000000ULL; /* MMID */
}
env->CP0_WatchHi[sel] = arg1 & mask;
env->CP0_WatchHi[sel] &= ~(env->CP0_WatchHi[sel] & arg1 & 0x7);
}
void helper_mthc0_watchhi(CPUMIPSState *env, target_ulong arg1, uint32_t sel)
{
env->CP0_WatchHi[sel] = ((uint64_t) (arg1) << 32) |
(env->CP0_WatchHi[sel] & 0x00000000ffffffffULL);
}
void helper_mtc0_xcontext(CPUMIPSState *env, target_ulong arg1)
{
target_ulong mask = (1ULL << (env->SEGBITS - 7)) - 1;