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ppc/pnv: Implement the XiveFabric interface 

The CAM line matching on the PowerNV machine now scans all chips of
the system and all CPUs of a chip to find a dispatched NVT in the
thread contexts.

Reviewed-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191125065820.927-10-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Cédric Le Goater 2019-11-25 07:58:09 +01:00 committed by David Gibson
parent d3eb47a2a1
commit c722579e8c
1 changed files with 35 additions and 0 deletions
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35
hw/ppc/pnv.c
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@ -1443,6 +1443,35 @@ static void pnv_pic_print_info(InterruptStatsProvider *obj,
}
}
static int pnv_match_nvt(XiveFabric *xfb, uint8_t format,
uint8_t nvt_blk, uint32_t nvt_idx,
bool cam_ignore, uint8_t priority,
uint32_t logic_serv,
XiveTCTXMatch *match)
{
PnvMachineState *pnv = PNV_MACHINE(xfb);
int total_count = 0;
int i;
for (i = 0; i < pnv->num_chips; i++) {
Pnv9Chip *chip9 = PNV9_CHIP(pnv->chips[i]);
XivePresenter *xptr = XIVE_PRESENTER(&chip9->xive);
XivePresenterClass *xpc = XIVE_PRESENTER_GET_CLASS(xptr);
int count;
count = xpc->match_nvt(xptr, format, nvt_blk, nvt_idx, cam_ignore,
priority, logic_serv, match);
if (count < 0) {
return count;
}
total_count += count;
}
return total_count;
}
static void pnv_get_num_chips(Object *obj, Visitor *v, const char *name,
void *opaque, Error **errp)
{
@ -1506,9 +1535,11 @@ static void pnv_machine_power8_class_init(ObjectClass *oc, void *data)
static void pnv_machine_power9_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
XiveFabricClass *xfc = XIVE_FABRIC_CLASS(oc);
mc->desc = "IBM PowerNV (Non-Virtualized) POWER9";
mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power9_v2.0");
xfc->match_nvt = pnv_match_nvt;
mc->alias = "powernv";
}
@ -1555,6 +1586,10 @@ static const TypeInfo types[] = {
.name = MACHINE_TYPE_NAME("powernv9"),
.parent = TYPE_PNV_MACHINE,
.class_init = pnv_machine_power9_class_init,
.interfaces = (InterfaceInfo[]) {
{ TYPE_XIVE_FABRIC },
{ },
},
},
{
.name = MACHINE_TYPE_NAME("powernv8"),