diff options
Diffstat (limited to 'target/openrisc/sys_helper.c')
| -rw-r--r-- | target/openrisc/sys_helper.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/target/openrisc/sys_helper.c b/target/openrisc/sys_helper.c index 48674231e7..da88ad9e77 100644 --- a/target/openrisc/sys_helper.c +++ b/target/openrisc/sys_helper.c @@ -145,6 +145,7 @@ void HELPER(mtspr)(CPUOpenRISCState *env, target_ulong spr, target_ulong rb) break; case TO_SPR(10, 0): /* TTMR */ { + qemu_mutex_lock_iothread(); if ((env->ttmr & TTMR_M) ^ (rb & TTMR_M)) { switch (rb & TTMR_M) { case TIMER_NONE: @@ -168,14 +169,16 @@ void HELPER(mtspr)(CPUOpenRISCState *env, target_ulong spr, target_ulong rb) env->ttmr = rb & ~TTMR_IP; cs->interrupt_request &= ~CPU_INTERRUPT_TIMER; } - cpu_openrisc_timer_update(cpu); + qemu_mutex_unlock_iothread(); } break; case TO_SPR(10, 1): /* TTCR */ + qemu_mutex_lock_iothread(); cpu_openrisc_count_set(cpu, rb); cpu_openrisc_timer_update(cpu); + qemu_mutex_unlock_iothread(); break; #endif @@ -303,7 +306,9 @@ target_ulong HELPER(mfspr)(CPUOpenRISCState *env, target_ulong rd, return env->ttmr; case TO_SPR(10, 1): /* TTCR */ + qemu_mutex_lock_iothread(); cpu_openrisc_count_update(cpu); + qemu_mutex_unlock_iothread(); return cpu_openrisc_count_get(cpu); #endif |