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authorEdgar E. Iglesias <edgar.iglesias@gmail.com>2011-01-18 00:07:49 +0100
committerEdgar E. Iglesias <edgar.iglesias@gmail.com>2011-01-18 12:27:52 +0100
commitb1dfe6437c776f6441cf8b71c706f32f2456c530 (patch)
treecbb2e4908203679eba7653b1ef4125e2f65c8c1f /hw/mips_timer.c
parent4a6648f44eefbfbea38a1de56f8a8e44a8892941 (diff)
downloadqemu-b1dfe6437c776f6441cf8b71c706f32f2456c530.tar.gz
mips: Break out cpu_mips_timer_expire
Reorganize for future patches, no functional change. Acked-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Diffstat (limited to 'hw/mips_timer.c')
-rw-r--r--hw/mips_timer.c36
1 files changed, 22 insertions, 14 deletions
diff --git a/hw/mips_timer.c b/hw/mips_timer.c
index e3beee8281..8c32087541 100644
--- a/hw/mips_timer.c
+++ b/hw/mips_timer.c
@@ -42,16 +42,6 @@ uint32_t cpu_mips_get_random (CPUState *env)
}
/* MIPS R4K timer */
-uint32_t cpu_mips_get_count (CPUState *env)
-{
- if (env->CP0_Cause & (1 << CP0Ca_DC))
- return env->CP0_Count;
- else
- return env->CP0_Count +
- (uint32_t)muldiv64(qemu_get_clock(vm_clock),
- TIMER_FREQ, get_ticks_per_sec());
-}
-
static void cpu_mips_timer_update(CPUState *env)
{
uint64_t now, next;
@@ -64,6 +54,27 @@ static void cpu_mips_timer_update(CPUState *env)
qemu_mod_timer(env->timer, next);
}
+/* Expire the timer. */
+static void cpu_mips_timer_expire(CPUState *env)
+{
+ cpu_mips_timer_update(env);
+ if (env->insn_flags & ISA_MIPS32R2) {
+ env->CP0_Cause |= 1 << CP0Ca_TI;
+ }
+ qemu_irq_raise(env->irq[(env->CP0_IntCtl >> CP0IntCtl_IPTI) & 0x7]);
+}
+
+uint32_t cpu_mips_get_count (CPUState *env)
+{
+ if (env->CP0_Cause & (1 << CP0Ca_DC)) {
+ return env->CP0_Count;
+ } else {
+ return env->CP0_Count +
+ (uint32_t)muldiv64(qemu_get_clock(vm_clock),
+ TIMER_FREQ, get_ticks_per_sec());
+ }
+}
+
void cpu_mips_store_count (CPUState *env, uint32_t count)
{
if (env->CP0_Cause & (1 << CP0Ca_DC))
@@ -116,11 +127,8 @@ static void mips_timer_cb (void *opaque)
the comparator value. Offset the count by one to avoid immediately
retriggering the callback before any virtual time has passed. */
env->CP0_Count++;
- cpu_mips_timer_update(env);
+ cpu_mips_timer_expire(env);
env->CP0_Count--;
- if (env->insn_flags & ISA_MIPS32R2)
- env->CP0_Cause |= 1 << CP0Ca_TI;
- qemu_irq_raise(env->irq[(env->CP0_IntCtl >> CP0IntCtl_IPTI) & 0x7]);
}
void cpu_mips_clock_init (CPUState *env)