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-rw-r--r--hw/openpic.c103
1 files changed, 42 insertions, 61 deletions
diff --git a/hw/openpic.c b/hw/openpic.c
index 80016a2039..e94529b7cc 100644
--- a/hw/openpic.c
+++ b/hw/openpic.c
@@ -53,7 +53,6 @@
#define MAX_IPI 4
#define MAX_IRQ (MAX_SRC + MAX_IPI + MAX_TMR)
#define VID 0x03 /* MPIC version ID */
-#define VENI 0x00000000 /* Vendor ID */
enum {
IRQ_IPVP = 0,
@@ -125,6 +124,14 @@ enum {
#define FSL_BRR1_IPMJ (0x00 << 8) /* 8 bit IP major number */
#define FSL_BRR1_IPMN 0x00 /* 8 bit IP minor number */
+#define FREP_NIRQ_SHIFT 16
+#define FREP_NCPU_SHIFT 8
+#define FREP_VID_SHIFT 0
+
+#define VID_REVISION_1_2 2
+
+#define VENI_GENERIC 0x00000000 /* Generic Vendor ID */
+
enum mpic_ide_bits {
IDR_EP = 31,
IDR_CI0 = 30,
@@ -208,6 +215,13 @@ typedef struct openpic_t {
/* Behavior control */
uint32_t flags;
+ uint32_t nb_irqs;
+ uint32_t vid;
+ uint32_t veni; /* Vendor identification register */
+ uint32_t spve_mask;
+ uint32_t tifr_reset;
+ uint32_t ipvp_reset;
+ uint32_t ide_reset;
/* Sub-regions */
MemoryRegion sub_io_mem[7];
@@ -215,8 +229,6 @@ typedef struct openpic_t {
/* Global registers */
uint32_t frep; /* Feature reporting register */
uint32_t glbc; /* Global configuration register */
- uint32_t micr; /* MPIC interrupt configuration register */
- uint32_t veni; /* Vendor identification register */
uint32_t pint; /* Processor initialization register */
uint32_t spve; /* Spurious vector register */
uint32_t tifr; /* Timer frequency reporting register */
@@ -235,7 +247,6 @@ typedef struct openpic_t {
int max_irq;
int irq_ipi0;
int irq_tim0;
- void (*reset) (void *);
} openpic_t;
static void openpic_irq_raise(openpic_t *opp, int n_CPU, IRQ_src_t *src);
@@ -412,17 +423,17 @@ static void openpic_reset (void *opaque)
opp->glbc = 0x80000000;
/* Initialise controller registers */
- opp->frep = ((OPENPIC_EXT_IRQ - 1) << 16) | ((MAX_CPU - 1) << 8) | VID;
- opp->veni = VENI;
+ opp->frep = ((opp->nb_irqs -1) << FREP_NIRQ_SHIFT) |
+ ((opp->nb_cpus -1) << FREP_NCPU_SHIFT) |
+ (opp->vid << FREP_VID_SHIFT);
+
opp->pint = 0x00000000;
- opp->spve = 0x000000FF;
- opp->tifr = 0x003F7A00;
- /* ? */
- opp->micr = 0x00000000;
+ opp->spve = -1 & opp->spve_mask;
+ opp->tifr = opp->tifr_reset;
/* Initialise IRQ sources */
for (i = 0; i < opp->max_irq; i++) {
- opp->src[i].ipvp = 0xA0000000;
- opp->src[i].ide = 0x00000000;
+ opp->src[i].ipvp = opp->ipvp_reset;
+ opp->src[i].ide = opp->ide_reset;
}
/* Initialise IRQ destinations */
for (i = 0; i < MAX_CPU; i++) {
@@ -499,9 +510,9 @@ static void openpic_gbl_write(void *opaque, hwaddr addr, uint64_t val,
case 0x1000: /* FREP */
break;
case 0x1020: /* GLBC */
- if (val & 0x80000000 && opp->reset)
- opp->reset(opp);
- opp->glbc = val & ~0x80000000;
+ if (val & 0x80000000) {
+ openpic_reset(opp);
+ }
break;
case 0x1080: /* VENI */
break;
@@ -530,7 +541,7 @@ static void openpic_gbl_write(void *opaque, hwaddr addr, uint64_t val,
}
break;
case 0x10E0: /* SPVE */
- opp->spve = val & 0x000000FF;
+ opp->spve = val & opp->spve_mask;
break;
default:
break;
@@ -912,9 +923,7 @@ static void openpic_save(QEMUFile* f, void *opaque)
openpic_t *opp = (openpic_t *)opaque;
unsigned int i;
- qemu_put_be32s(f, &opp->frep);
qemu_put_be32s(f, &opp->glbc);
- qemu_put_be32s(f, &opp->micr);
qemu_put_be32s(f, &opp->veni);
qemu_put_be32s(f, &opp->pint);
qemu_put_be32s(f, &opp->spve);
@@ -964,9 +973,7 @@ static int openpic_load(QEMUFile* f, void *opaque, int version_id)
if (version_id != 1)
return -EINVAL;
- qemu_get_be32s(f, &opp->frep);
qemu_get_be32s(f, &opp->glbc);
- qemu_get_be32s(f, &opp->micr);
qemu_get_be32s(f, &opp->veni);
qemu_get_be32s(f, &opp->pint);
qemu_get_be32s(f, &opp->spve);
@@ -1043,6 +1050,11 @@ qemu_irq *openpic_init (MemoryRegion **pmem, int nb_cpus,
// isu_base &= 0xFFFC0000;
opp->nb_cpus = nb_cpus;
+ opp->nb_irqs = OPENPIC_EXT_IRQ;
+ opp->vid = VID;
+ opp->veni = VENI_GENERIC;
+ opp->spve_mask = 0xFF;
+ opp->tifr_reset = 0x003F7A00;
opp->max_irq = OPENPIC_MAX_IRQ;
opp->irq_ipi0 = OPENPIC_IRQ_IPI0;
opp->irq_tim0 = OPENPIC_IRQ_TIM0;
@@ -1068,51 +1080,12 @@ qemu_irq *openpic_init (MemoryRegion **pmem, int nb_cpus,
openpic_save, openpic_load, opp);
qemu_register_reset(openpic_reset, opp);
- opp->reset = openpic_reset;
-
if (pmem)
*pmem = &opp->mem;
return qemu_allocate_irqs(openpic_set_irq, opp, opp->max_irq);
}
-static void mpic_reset (void *opaque)
-{
- openpic_t *mpp = (openpic_t *)opaque;
- int i;
-
- mpp->glbc = 0x80000000;
- /* Initialise controller registers */
- mpp->frep = 0x004f0002 | ((mpp->nb_cpus - 1) << 8);
- mpp->veni = VENI;
- mpp->pint = 0x00000000;
- mpp->spve = 0x0000FFFF;
- /* Initialise IRQ sources */
- for (i = 0; i < mpp->max_irq; i++) {
- mpp->src[i].ipvp = 0x80800000;
- mpp->src[i].ide = 0x00000001;
- }
- /* Set IDE for IPIs to 0 so we don't get spurious interrupts */
- for (i = mpp->irq_ipi0; i < (mpp->irq_ipi0 + MAX_IPI); i++) {
- mpp->src[i].ide = 0;
- }
- /* Initialise IRQ destinations */
- for (i = 0; i < MAX_CPU; i++) {
- mpp->dst[i].pctp = 0x0000000F;
- memset(&mpp->dst[i].raised, 0, sizeof(IRQ_queue_t));
- mpp->dst[i].raised.next = -1;
- memset(&mpp->dst[i].servicing, 0, sizeof(IRQ_queue_t));
- mpp->dst[i].servicing.next = -1;
- }
- /* Initialise timers */
- for (i = 0; i < MAX_TMR; i++) {
- mpp->timers[i].ticc = 0x00000000;
- mpp->timers[i].tibc = 0x80000000;
- }
- /* Go out of RESET state */
- mpp->glbc = 0x00000000;
-}
-
static const MemoryRegionOps mpic_glb_ops = {
.write = openpic_gbl_write,
.read = openpic_gbl_read,
@@ -1185,6 +1158,15 @@ qemu_irq *mpic_init (MemoryRegion *address_space, hwaddr base,
}
mpp->nb_cpus = nb_cpus;
+ /* 12 external sources, 48 internal sources , 4 timer sources,
+ 4 IPI sources, 4 messaging sources, and 8 Shared MSI sources */
+ mpp->nb_irqs = 80;
+ mpp->vid = VID_REVISION_1_2;
+ mpp->veni = VENI_GENERIC;
+ mpp->spve_mask = 0xFFFF;
+ mpp->tifr_reset = 0x00000000;
+ mpp->ipvp_reset = 0x80000000;
+ mpp->ide_reset = 0x00000001;
mpp->max_irq = MPIC_MAX_IRQ;
mpp->irq_ipi0 = MPIC_IPI_IRQ;
mpp->irq_tim0 = MPIC_TMR_IRQ;
@@ -1195,10 +1177,9 @@ qemu_irq *mpic_init (MemoryRegion *address_space, hwaddr base,
/* Enable critical interrupt support */
mpp->flags |= OPENPIC_FLAG_IDE_CRIT;
- mpp->reset = mpic_reset;
register_savevm(NULL, "mpic", 0, 2, openpic_save, openpic_load, mpp);
- qemu_register_reset(mpic_reset, mpp);
+ qemu_register_reset(openpic_reset, mpp);
return qemu_allocate_irqs(openpic_set_irq, mpp, mpp->max_irq);
}
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-04 23:27:04 +0000