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ppc/pnv: add a OCC model class 

To ease the introduction of the OCC model for POWER9, provide a new
class attributes to define XSCOM operations per CPU family and a PSI
IRQ number.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20190307223548.20516-9-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2019-03-07 23:35:41 +01:00 committed by David Gibson
parent 8207b90604
commit 3233838cd1
3 changed files with 54 additions and 18 deletions
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2
hw/ppc/pnv.c
View File

@ -790,7 +790,7 @@ static void pnv_chip_power8_instance_init(Object *obj)
OBJECT(&chip8->psi), &error_abort);
object_initialize_child(obj, "occ", &chip8->occ, sizeof(chip8->occ),
TYPE_PNV_OCC, &error_abort, NULL);
TYPE_PNV8_OCC, &error_abort, NULL);
object_property_add_const_link(OBJECT(&chip8->occ), "psi",
OBJECT(&chip8->psi), &error_abort);
}

55
hw/ppc/pnv_occ.c
View File

@ -34,15 +34,17 @@
static void pnv_occ_set_misc(PnvOCC *occ, uint64_t val)
{
bool irq_state;
PnvOCCClass *poc = PNV_OCC_GET_CLASS(occ);
val &= 0xffff000000000000ull;
occ->occmisc = val;
irq_state = !!(val >> 63);
pnv_psi_irq_set(occ->psi, PSIHB_IRQ_OCC, irq_state);
pnv_psi_irq_set(occ->psi, poc->psi_irq, irq_state);
}
static uint64_t pnv_occ_xscom_read(void *opaque, hwaddr addr, unsigned size)
static uint64_t pnv_occ_power8_xscom_read(void *opaque, hwaddr addr,
unsigned size)
{
PnvOCC *occ = PNV_OCC(opaque);
uint32_t offset = addr >> 3;
@ -54,13 +56,13 @@ static uint64_t pnv_occ_xscom_read(void *opaque, hwaddr addr, unsigned size)
break;
default:
qemu_log_mask(LOG_UNIMP, "OCC Unimplemented register: Ox%"
HWADDR_PRIx "\n", addr);
HWADDR_PRIx "\n", addr >> 3);
}
return val;
}
static void pnv_occ_xscom_write(void *opaque, hwaddr addr,
uint64_t val, unsigned size)
static void pnv_occ_power8_xscom_write(void *opaque, hwaddr addr,
uint64_t val, unsigned size)
{
PnvOCC *occ = PNV_OCC(opaque);
uint32_t offset = addr >> 3;
@ -77,13 +79,13 @@ static void pnv_occ_xscom_write(void *opaque, hwaddr addr,
break;
default:
qemu_log_mask(LOG_UNIMP, "OCC Unimplemented register: Ox%"
HWADDR_PRIx "\n", addr);
HWADDR_PRIx "\n", addr >> 3);
}
}
static const MemoryRegionOps pnv_occ_xscom_ops = {
.read = pnv_occ_xscom_read,
.write = pnv_occ_xscom_write,
static const MemoryRegionOps pnv_occ_power8_xscom_ops = {
.read = pnv_occ_power8_xscom_read,
.write = pnv_occ_power8_xscom_write,
.valid.min_access_size = 8,
.valid.max_access_size = 8,
.impl.min_access_size = 8,
@ -91,27 +93,42 @@ static const MemoryRegionOps pnv_occ_xscom_ops = {
.endianness = DEVICE_BIG_ENDIAN,
};
static void pnv_occ_power8_class_init(ObjectClass *klass, void *data)
{
PnvOCCClass *poc = PNV_OCC_CLASS(klass);
poc->xscom_size = PNV_XSCOM_OCC_SIZE;
poc->xscom_ops = &pnv_occ_power8_xscom_ops;
poc->psi_irq = PSIHB_IRQ_OCC;
}
static const TypeInfo pnv_occ_power8_type_info = {
.name = TYPE_PNV8_OCC,
.parent = TYPE_PNV_OCC,
.instance_size = sizeof(PnvOCC),
.class_init = pnv_occ_power8_class_init,
};
static void pnv_occ_realize(DeviceState *dev, Error **errp)
{
PnvOCC *occ = PNV_OCC(dev);
PnvOCCClass *poc = PNV_OCC_GET_CLASS(occ);
Object *obj;
Error *error = NULL;
Error *local_err = NULL;
occ->occmisc = 0;
/* get PSI object from chip */
obj = object_property_get_link(OBJECT(dev), "psi", &error);
obj = object_property_get_link(OBJECT(dev), "psi", &local_err);
if (!obj) {
error_setg(errp, "%s: required link 'psi' not found: %s",
__func__, error_get_pretty(error));
error_propagate(errp, local_err);
error_prepend(errp, "required link 'psi' not found: ");
return;
}
occ->psi = PNV_PSI(obj);
/* XScom region for OCC registers */
pnv_xscom_region_init(&occ->xscom_regs, OBJECT(dev), &pnv_occ_xscom_ops,
occ, "xscom-occ", PNV_XSCOM_OCC_SIZE);
pnv_xscom_region_init(&occ->xscom_regs, OBJECT(dev), poc->xscom_ops,
occ, "xscom-occ", poc->xscom_size);
}
static void pnv_occ_class_init(ObjectClass *klass, void *data)
@ -119,6 +136,7 @@ static void pnv_occ_class_init(ObjectClass *klass, void *data)
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = pnv_occ_realize;
dc->desc = "PowerNV OCC Controller";
}
static const TypeInfo pnv_occ_type_info = {
@ -126,11 +144,14 @@ static const TypeInfo pnv_occ_type_info = {
.parent = TYPE_DEVICE,
.instance_size = sizeof(PnvOCC),
.class_init = pnv_occ_class_init,
.class_size = sizeof(PnvOCCClass),
.abstract = true,
};
static void pnv_occ_register_types(void)
{
type_register_static(&pnv_occ_type_info);
type_register_static(&pnv_occ_power8_type_info);
}
type_init(pnv_occ_register_types)
type_init(pnv_occ_register_types);

15
include/hw/ppc/pnv_occ.h
View File

@ -23,6 +23,8 @@
#define TYPE_PNV_OCC "pnv-occ"
#define PNV_OCC(obj) OBJECT_CHECK(PnvOCC, (obj), TYPE_PNV_OCC)
#define TYPE_PNV8_OCC TYPE_PNV_OCC "-POWER8"
#define PNV8_OCC(obj) OBJECT_CHECK(PnvOCC, (obj), TYPE_PNV8_OCC)
typedef struct PnvOCC {
DeviceState xd;
@ -35,4 +37,17 @@ typedef struct PnvOCC {
MemoryRegion xscom_regs;
} PnvOCC;
#define PNV_OCC_CLASS(klass) \
OBJECT_CLASS_CHECK(PnvOCCClass, (klass), TYPE_PNV_OCC)
#define PNV_OCC_GET_CLASS(obj) \
OBJECT_GET_CLASS(PnvOCCClass, (obj), TYPE_PNV_OCC)
typedef struct PnvOCCClass {
DeviceClass parent_class;
int xscom_size;
const MemoryRegionOps *xscom_ops;
int psi_irq;
} PnvOCCClass;
#endif /* _PPC_PNV_OCC_H */