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authorIsaku Yamahata <yamahata@valinux.co.jp>2011-03-25 19:54:41 +0900
committerAurelien Jarno <aurelien@aurel32.net>2011-04-10 14:00:14 +0200
commit23910d3f669d46073b403876e30a7314599633af (patch)
tree43f66c7ed032c566c9256d3478f93a6df6760b0f /hw/acpi_piix4.c
parentbe5e7a76010bd14d09f74504ed6368782e701888 (diff)
acpi, acpi_piix: factor out GPE logic
factor out ACPI GPE logic. Later it will be used by ICH9 ACPI. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'hw/acpi_piix4.c')
-rw-r--r--hw/acpi_piix4.c95
1 files changed, 25 insertions, 70 deletions
diff --git a/hw/acpi_piix4.c b/hw/acpi_piix4.c
index 412ace3849..96f522233a 100644
--- a/hw/acpi_piix4.c
+++ b/hw/acpi_piix4.c
@@ -35,17 +35,13 @@
#define ACPI_DBG_IO_ADDR 0xb044
#define GPE_BASE 0xafe0
+#define GPE_LEN 4
#define PCI_BASE 0xae00
#define PCI_EJ_BASE 0xae08
#define PCI_RMV_BASE 0xae0c
#define PIIX4_PCI_HOTPLUG_STATUS 2
-struct gpe_regs {
- uint16_t sts; /* status */
- uint16_t en; /* enabled */
-};
-
struct pci_status {
uint32_t up;
uint32_t down;
@@ -69,7 +65,7 @@ typedef struct PIIX4PMState {
int kvm_enabled;
/* for pci hotplug */
- struct gpe_regs gpe;
+ ACPIGPE gpe;
struct pci_status pci0_status;
uint32_t pci0_hotplug_enable;
} PIIX4PMState;
@@ -89,7 +85,7 @@ static void pm_update_sci(PIIX4PMState *s)
ACPI_BITMASK_POWER_BUTTON_ENABLE |
ACPI_BITMASK_GLOBAL_LOCK_ENABLE |
ACPI_BITMASK_TIMER_ENABLE)) != 0) ||
- (((s->gpe.sts & s->gpe.en) & PIIX4_PCI_HOTPLUG_STATUS) != 0);
+ (((s->gpe.sts[0] & s->gpe.en[0]) & PIIX4_PCI_HOTPLUG_STATUS) != 0);
qemu_set_irq(s->irq, sci_level);
/* schedule a timer interruption if needed */
@@ -214,14 +210,25 @@ static int vmstate_acpi_post_load(void *opaque, int version_id)
return 0;
}
+#define VMSTATE_GPE_ARRAY(_field, _state) \
+ { \
+ .name = (stringify(_field)), \
+ .version_id = 0, \
+ .num = GPE_LEN, \
+ .info = &vmstate_info_uint16, \
+ .size = sizeof(uint16_t), \
+ .flags = VMS_ARRAY | VMS_POINTER, \
+ .offset = vmstate_offset_pointer(_state, _field, uint8_t), \
+ }
+
static const VMStateDescription vmstate_gpe = {
.name = "gpe",
.version_id = 1,
.minimum_version_id = 1,
.minimum_version_id_old = 1,
.fields = (VMStateField []) {
- VMSTATE_UINT16(sts, struct gpe_regs),
- VMSTATE_UINT16(en, struct gpe_regs),
+ VMSTATE_GPE_ARRAY(sts, ACPIGPE),
+ VMSTATE_GPE_ARRAY(en, ACPIGPE),
VMSTATE_END_OF_LIST()
}
};
@@ -252,7 +259,7 @@ static const VMStateDescription vmstate_acpi = {
VMSTATE_STRUCT(apm, PIIX4PMState, 0, vmstate_apm, APMState),
VMSTATE_TIMER(tmr.timer, PIIX4PMState),
VMSTATE_INT64(tmr.overflow_time, PIIX4PMState),
- VMSTATE_STRUCT(gpe, PIIX4PMState, 2, vmstate_gpe, struct gpe_regs),
+ VMSTATE_STRUCT(gpe, PIIX4PMState, 2, vmstate_gpe, ACPIGPE),
VMSTATE_STRUCT(pci0_status, PIIX4PMState, 2, vmstate_pci_status,
struct pci_status),
VMSTATE_END_OF_LIST()
@@ -346,6 +353,7 @@ static int piix4_pm_initfn(PCIDevice *dev)
register_ioport_read(s->smb_io_base, 64, 1, smb_ioport_readb, &s->smb);
acpi_pm_tmr_init(&s->tmr, pm_tmr_timer);
+ acpi_gpe_init(&s->gpe, GPE_LEN);
qemu_system_powerdown = *qemu_allocate_irqs(piix4_powerdown, s, 1);
@@ -399,74 +407,20 @@ static void piix4_pm_register(void)
device_init(piix4_pm_register);
-static uint32_t gpe_read_val(uint16_t val, uint32_t addr)
-{
- if (addr & 1)
- return (val >> 8) & 0xff;
- return val & 0xff;
-}
-
static uint32_t gpe_readb(void *opaque, uint32_t addr)
{
- uint32_t val = 0;
PIIX4PMState *s = opaque;
- struct gpe_regs *g = &s->gpe;
-
- switch (addr) {
- case GPE_BASE:
- case GPE_BASE + 1:
- val = gpe_read_val(g->sts, addr);
- break;
- case GPE_BASE + 2:
- case GPE_BASE + 3:
- val = gpe_read_val(g->en, addr);
- break;
- default:
- break;
- }
+ uint32_t val = acpi_gpe_ioport_readb(&s->gpe, addr);
PIIX4_DPRINTF("gpe read %x == %x\n", addr, val);
return val;
}
-static void gpe_write_val(uint16_t *cur, int addr, uint32_t val)
-{
- if (addr & 1)
- *cur = (*cur & 0xff) | (val << 8);
- else
- *cur = (*cur & 0xff00) | (val & 0xff);
-}
-
-static void gpe_reset_val(uint16_t *cur, int addr, uint32_t val)
-{
- uint16_t x1, x0 = val & 0xff;
- int shift = (addr & 1) ? 8 : 0;
-
- x1 = (*cur >> shift) & 0xff;
-
- x1 = x1 & ~x0;
-
- *cur = (*cur & (0xff << (8 - shift))) | (x1 << shift);
-}
-
static void gpe_writeb(void *opaque, uint32_t addr, uint32_t val)
{
PIIX4PMState *s = opaque;
- struct gpe_regs *g = &s->gpe;
-
- switch (addr) {
- case GPE_BASE:
- case GPE_BASE + 1:
- gpe_reset_val(&g->sts, addr, val);
- break;
- case GPE_BASE + 2:
- case GPE_BASE + 3:
- gpe_write_val(&g->en, addr, val);
- break;
- default:
- break;
- }
+ acpi_gpe_ioport_writeb(&s->gpe, addr, val);
pm_update_sci(s);
PIIX4_DPRINTF("gpe write %x <== %d\n", addr, val);
@@ -549,8 +503,9 @@ static void piix4_acpi_system_hot_add_init(PCIBus *bus, PIIX4PMState *s)
{
struct pci_status *pci0_status = &s->pci0_status;
- register_ioport_write(GPE_BASE, 4, 1, gpe_writeb, s);
- register_ioport_read(GPE_BASE, 4, 1, gpe_readb, s);
+ register_ioport_write(GPE_BASE, GPE_LEN, 1, gpe_writeb, s);
+ register_ioport_read(GPE_BASE, GPE_LEN, 1, gpe_readb, s);
+ acpi_gpe_blk(&s->gpe, GPE_BASE);
register_ioport_write(PCI_BASE, 8, 4, pcihotplug_write, pci0_status);
register_ioport_read(PCI_BASE, 8, 4, pcihotplug_read, pci0_status);
@@ -566,13 +521,13 @@ static void piix4_acpi_system_hot_add_init(PCIBus *bus, PIIX4PMState *s)
static void enable_device(PIIX4PMState *s, int slot)
{
- s->gpe.sts |= PIIX4_PCI_HOTPLUG_STATUS;
+ s->gpe.sts[0] |= PIIX4_PCI_HOTPLUG_STATUS;
s->pci0_status.up |= (1 << slot);
}
static void disable_device(PIIX4PMState *s, int slot)
{
- s->gpe.sts |= PIIX4_PCI_HOTPLUG_STATUS;
+ s->gpe.sts[0] |= PIIX4_PCI_HOTPLUG_STATUS;
s->pci0_status.down |= (1 << slot);
}