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-rw-r--r--hw/sched.c150
1 files changed, 36 insertions, 114 deletions
diff --git a/hw/sched.c b/hw/sched.c
index c9a685d44a..2ab966de4c 100644
--- a/hw/sched.c
+++ b/hw/sched.c
@@ -1,5 +1,5 @@
/*
- * QEMU interrupt controller & timer emulation
+ * QEMU interrupt controller emulation
*
* Copyright (c) 2003-2004 Fabrice Bellard
*
@@ -22,11 +22,7 @@
* THE SOFTWARE.
*/
#include "vl.h"
-
-#define PHYS_JJ_CLOCK 0x71D00000
-#define PHYS_JJ_CLOCK1 0x71D10000
-#define PHYS_JJ_INTR0 0x71E00000 /* CPU0 interrupt control registers */
-#define PHYS_JJ_INTR_G 0x71E10000 /* Master interrupt control registers */
+//#define DEBUG_IRQ_COUNT
/* These registers are used for sending/receiving irqs from/to
* different cpu's.
@@ -63,18 +59,6 @@ struct sun4m_intreg_master {
/* This register is both READ and WRITE. */
unsigned int undirected_target; /* Which cpu gets undirected irqs. */
};
-/*
- * Registers of hardware timer in sun4m.
- */
-struct sun4m_timer_percpu {
- volatile unsigned int l14_timer_limit; /* Initial value is 0x009c4000 */
- volatile unsigned int l14_cur_count;
-};
-
-struct sun4m_timer_global {
- volatile unsigned int l10_timer_limit;
- volatile unsigned int l10_cur_count;
-};
#define SUN4M_INT_ENABLE 0x80000000
#define SUN4M_INT_E14 0x00000080
@@ -101,29 +85,25 @@ struct sun4m_timer_global {
#define SUN4M_INT_VME(x) (1 << (x))
typedef struct SCHEDState {
+ uint32_t addr, addrg;
uint32_t intreg_pending;
uint32_t intreg_enabled;
uint32_t intregm_pending;
uint32_t intregm_enabled;
- uint32_t timer_regs[2];
- uint32_t timerm_regs[2];
} SCHEDState;
static SCHEDState *ps;
-static int intreg_io_memory, intregm_io_memory,
- timer_io_memory, timerm_io_memory;
-
-static void sched_reset(SCHEDState *s)
-{
-}
+#ifdef DEBUG_IRQ_COUNT
+static uint64_t irq_count[32];
+#endif
static uint32_t intreg_mem_readl(void *opaque, target_phys_addr_t addr)
{
SCHEDState *s = opaque;
uint32_t saddr;
- saddr = (addr - PHYS_JJ_INTR0) >> 2;
+ saddr = (addr - s->addr) >> 2;
switch (saddr) {
case 0:
return s->intreg_pending;
@@ -139,7 +119,7 @@ static void intreg_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t va
SCHEDState *s = opaque;
uint32_t saddr;
- saddr = (addr - PHYS_JJ_INTR0) >> 2;
+ saddr = (addr - s->addr) >> 2;
switch (saddr) {
case 0:
s->intreg_pending = val;
@@ -172,7 +152,7 @@ static uint32_t intregm_mem_readl(void *opaque, target_phys_addr_t addr)
SCHEDState *s = opaque;
uint32_t saddr;
- saddr = (addr - PHYS_JJ_INTR_G) >> 2;
+ saddr = (addr - s->addrg) >> 2;
switch (saddr) {
case 0:
return s->intregm_pending;
@@ -191,7 +171,7 @@ static void intregm_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t v
SCHEDState *s = opaque;
uint32_t saddr;
- saddr = (addr - PHYS_JJ_INTR_G) >> 2;
+ saddr = (addr - s->addrg) >> 2;
switch (saddr) {
case 0:
s->intregm_pending = val;
@@ -222,87 +202,29 @@ static CPUWriteMemoryFunc *intregm_mem_write[3] = {
intregm_mem_writel,
};
-static uint32_t timer_mem_readl(void *opaque, target_phys_addr_t addr)
+void pic_info(void)
{
- SCHEDState *s = opaque;
- uint32_t saddr;
-
- saddr = (addr - PHYS_JJ_CLOCK) >> 2;
- switch (saddr) {
- default:
- return s->timer_regs[saddr];
- break;
- }
- return 0;
+ term_printf("per-cpu: pending 0x%08x, enabled 0x%08x\n", ps->intreg_pending, ps->intreg_enabled);
+ term_printf("master: pending 0x%08x, enabled 0x%08x\n", ps->intregm_pending, ps->intregm_enabled);
}
-static void timer_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
+void irq_info(void)
{
- SCHEDState *s = opaque;
- uint32_t saddr;
-
- saddr = (addr - PHYS_JJ_CLOCK) >> 2;
- switch (saddr) {
- default:
- s->timer_regs[saddr] = val;
- break;
+#ifndef DEBUG_IRQ_COUNT
+ term_printf("irq statistic code not compiled.\n");
+#else
+ int i;
+ int64_t count;
+
+ term_printf("IRQ statistics:\n");
+ for (i = 0; i < 32; i++) {
+ count = irq_count[i];
+ if (count > 0)
+ term_printf("%2d: %lld\n", i, count);
}
+#endif
}
-static CPUReadMemoryFunc *timer_mem_read[3] = {
- timer_mem_readl,
- timer_mem_readl,
- timer_mem_readl,
-};
-
-static CPUWriteMemoryFunc *timer_mem_write[3] = {
- timer_mem_writel,
- timer_mem_writel,
- timer_mem_writel,
-};
-
-static uint32_t timerm_mem_readl(void *opaque, target_phys_addr_t addr)
-{
- SCHEDState *s = opaque;
- uint32_t saddr;
-
- saddr = (addr - PHYS_JJ_CLOCK1) >> 2;
- switch (saddr) {
- default:
- return s->timerm_regs[saddr];
- break;
- }
- return 0;
-}
-
-static void timerm_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
-{
- SCHEDState *s = opaque;
- uint32_t saddr;
-
- saddr = (addr - PHYS_JJ_CLOCK1) >> 2;
- switch (saddr) {
- default:
- s->timerm_regs[saddr] = val;
- break;
- }
-}
-
-static CPUReadMemoryFunc *timerm_mem_read[3] = {
- timerm_mem_readl,
- timerm_mem_readl,
- timerm_mem_readl,
-};
-
-static CPUWriteMemoryFunc *timerm_mem_write[3] = {
- timerm_mem_writel,
- timerm_mem_writel,
- timerm_mem_writel,
-};
-
-void pic_info() {}
-void irq_info() {}
-
static const unsigned int intr_to_mask[16] = {
0, 0, 0, 0, 0, 0, SUN4M_INT_ETHERNET, 0,
0, 0, 0, 0, 0, 0, 0, 0,
@@ -318,29 +240,29 @@ void pic_set_irq(int irq, int level)
cpu_interrupt(cpu_single_env, CPU_INTERRUPT_HARD);
}
}
+#ifdef DEBUG_IRQ_COUNT
+ if (level == 1)
+ irq_count[irq]++;
+#endif
}
-void sched_init()
+void sched_init(uint32_t addr, uint32_t addrg)
{
+ int intreg_io_memory, intregm_io_memory;
SCHEDState *s;
s = qemu_mallocz(sizeof(SCHEDState));
if (!s)
return;
+ s->addr = addr;
+ s->addrg = addrg;
intreg_io_memory = cpu_register_io_memory(0, intreg_mem_read, intreg_mem_write, s);
- cpu_register_physical_memory(PHYS_JJ_INTR0, 3, intreg_io_memory);
+ cpu_register_physical_memory(addr, 3, intreg_io_memory);
intregm_io_memory = cpu_register_io_memory(0, intregm_mem_read, intregm_mem_write, s);
- cpu_register_physical_memory(PHYS_JJ_INTR_G, 5, intregm_io_memory);
-
- timer_io_memory = cpu_register_io_memory(0, timer_mem_read, timer_mem_write, s);
- cpu_register_physical_memory(PHYS_JJ_CLOCK, 2, timer_io_memory);
-
- timerm_io_memory = cpu_register_io_memory(0, timerm_mem_read, timerm_mem_write, s);
- cpu_register_physical_memory(PHYS_JJ_CLOCK1, 2, timerm_io_memory);
+ cpu_register_physical_memory(addrg, 5, intregm_io_memory);
- sched_reset(s);
ps = s;
}
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-15 08:27:04 +0000