diff options
| author | Yongbok Kim | 2019-12-20 10:34:09 +0100 |
|---|---|---|
| committer | Aleksandar Markovic | 2020-01-29 19:28:52 +0100 |
| commit | feafe82cc2289a31b3e3f11dc76f3539ea22d670 (patch) | |
| tree | b22339b97d2f69b7e083df84b6899e42b2a2ba8c /target/mips/op_helper.c | |
| parent | hw/core/loader: Let load_elf() populate a field with CPU-specific flags (diff) | |
| download | qemu-feafe82cc2289a31b3e3f11dc76f3539ea22d670.tar.gz qemu-feafe82cc2289a31b3e3f11dc76f3539ea22d670.tar.xz qemu-feafe82cc2289a31b3e3f11dc76f3539ea22d670.zip | |
target/mips: Amend CP0 WatchHi register implementation
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>
Diffstat (limited to 'target/mips/op_helper.c')
| -rw-r--r-- | target/mips/op_helper.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/target/mips/op_helper.c b/target/mips/op_helper.c index 79d44da6fa..7425a8868a 100644 --- a/target/mips/op_helper.c +++ b/target/mips/op_helper.c @@ -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; |