summaryrefslogtreecommitdiff
path: root/target-sparc/int32_helper.c
diff options
context:
space:
mode:
Diffstat (limited to 'target-sparc/int32_helper.c')
-rw-r--r--target-sparc/int32_helper.c47
1 files changed, 46 insertions, 1 deletions
diff --git a/target-sparc/int32_helper.c b/target-sparc/int32_helper.c
index 219a6c64cd..1c6ba6d1c7 100644
--- a/target-sparc/int32_helper.c
+++ b/target-sparc/int32_helper.c
@@ -20,6 +20,14 @@
#include "cpu.h"
//#define DEBUG_PCALL
+//#define DEBUG_CACHE_CONTROL
+
+#ifdef DEBUG_CACHE_CONTROL
+#define DPRINTF_CACHE_CONTROL(fmt, ...) \
+ do { printf("CACHE_CONTROL: " fmt , ## __VA_ARGS__); } while (0)
+#else
+#define DPRINTF_CACHE_CONTROL(fmt, ...) do {} while (0)
+#endif
#ifdef DEBUG_PCALL
static const char * const excp_names[0x80] = {
@@ -119,7 +127,44 @@ void do_interrupt(CPUState *env)
#if !defined(CONFIG_USER_ONLY)
/* IRQ acknowledgment */
if ((intno & ~15) == TT_EXTINT && env->qemu_irq_ack != NULL) {
- env->qemu_irq_ack(env->irq_manager, intno);
+ env->qemu_irq_ack(env, env->irq_manager, intno);
}
#endif
}
+
+#if !defined(CONFIG_USER_ONLY)
+static void leon3_cache_control_int(CPUState *env)
+{
+ uint32_t state = 0;
+
+ if (env->cache_control & CACHE_CTRL_IF) {
+ /* Instruction cache state */
+ state = env->cache_control & CACHE_STATE_MASK;
+ if (state == CACHE_ENABLED) {
+ state = CACHE_FROZEN;
+ DPRINTF_CACHE_CONTROL("Instruction cache: freeze\n");
+ }
+
+ env->cache_control &= ~CACHE_STATE_MASK;
+ env->cache_control |= state;
+ }
+
+ if (env->cache_control & CACHE_CTRL_DF) {
+ /* Data cache state */
+ state = (env->cache_control >> 2) & CACHE_STATE_MASK;
+ if (state == CACHE_ENABLED) {
+ state = CACHE_FROZEN;
+ DPRINTF_CACHE_CONTROL("Data cache: freeze\n");
+ }
+
+ env->cache_control &= ~(CACHE_STATE_MASK << 2);
+ env->cache_control |= (state << 2);
+ }
+}
+
+void leon3_irq_manager(CPUState *env, void *irq_manager, int intno)
+{
+ leon3_irq_ack(irq_manager, intno);
+ leon3_cache_control_int(env);
+}
+#endif