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authorbalrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>2007-05-01 01:28:01 +0000
committerbalrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>2007-05-01 01:28:01 +0000
commita90b7318ba55b1aed71e299ec965bbd8f393b9b3 (patch)
tree46ff4f1b6f0d90bda5ed61ba5c3702c419342b2d /cpu-exec.c
parent4207117c93357347500235952ce7891688089cb1 (diff)
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Implement power state changes (IDLE and SLEEP) for PXA.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2762 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'cpu-exec.c')
-rw-r--r--cpu-exec.c23
1 files changed, 14 insertions, 9 deletions
diff --git a/cpu-exec.c b/cpu-exec.c
index 284cb92ae8..4777babd2a 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -279,9 +279,10 @@ int cpu_exec(CPUState *env1)
#elif defined(TARGET_ARM)
if (env1->halted) {
/* An interrupt wakes the CPU even if the I and F CPSR bits are
- set. */
- if (env1->interrupt_request
- & (CPU_INTERRUPT_FIQ | CPU_INTERRUPT_HARD)) {
+ set. We use EXITTB to silently wake CPU without causing an
+ actual interrupt. */
+ if (env1->interrupt_request &
+ (CPU_INTERRUPT_FIQ | CPU_INTERRUPT_HARD | CPU_INTERRUPT_EXITTB)) {
env1->halted = 0;
} else {
return EXCP_HALTED;
@@ -432,6 +433,15 @@ int cpu_exec(CPUState *env1)
env->exception_index = EXCP_DEBUG;
cpu_loop_exit();
}
+#if defined(TARGET_ARM) || defined(TARGET_SPARC) || defined(TARGET_MIPS) || \
+ defined(TARGET_PPC) || defined(TARGET_ALPHA)
+ if (interrupt_request & CPU_INTERRUPT_HALT) {
+ env->interrupt_request &= ~CPU_INTERRUPT_HALT;
+ env->halted = 1;
+ env->exception_index = EXCP_HLT;
+ cpu_loop_exit();
+ }
+#endif
#if defined(TARGET_I386)
if ((interrupt_request & CPU_INTERRUPT_SMI) &&
!(env->hflags & HF_SMM_MASK)) {
@@ -514,12 +524,7 @@ int cpu_exec(CPUState *env1)
} else if (interrupt_request & CPU_INTERRUPT_TIMER) {
//do_interrupt(0, 0, 0, 0, 0);
env->interrupt_request &= ~CPU_INTERRUPT_TIMER;
- } else if (interrupt_request & CPU_INTERRUPT_HALT) {
- env->interrupt_request &= ~CPU_INTERRUPT_HALT;
- env->halted = 1;
- env->exception_index = EXCP_HLT;
- cpu_loop_exit();
- }
+ }
#elif defined(TARGET_ARM)
if (interrupt_request & CPU_INTERRUPT_FIQ
&& !(env->uncached_cpsr & CPSR_F)) {