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Re: [PATCH for-5.0 v5 13/23] ppc/pnv: Implement the XiveFabric interface
From: |
Greg Kurz |
Subject: |
Re: [PATCH for-5.0 v5 13/23] ppc/pnv: Implement the XiveFabric interface |
Date: |
Wed, 20 Nov 2019 18:41:39 +0100 |
On Fri, 15 Nov 2019 17:24:26 +0100
Cédric Le Goater <address@hidden> wrote:
> 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.
>
> Signed-off-by: Cédric Le Goater <address@hidden>
> ---
Reviewed-by: Greg Kurz <address@hidden>
> hw/ppc/pnv.c | 35 +++++++++++++++++++++++++++++++++++
> 1 file changed, 35 insertions(+)
>
> diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
> index 94c9f536413f..207a5cf2c650 100644
> --- a/hw/ppc/pnv.c
> +++ b/hw/ppc/pnv.c
> @@ -1446,6 +1446,35 @@ static void pnv_pic_print_info(InterruptStatsProvider
> *obj,
> }
> }
>
> +static int pnv_xive_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)
> {
> @@ -1509,9 +1538,11 @@ 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_xive_match_nvt;
>
> mc->alias = "powernv";
> }
> @@ -1558,6 +1589,10 @@ 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"),
- Re: [PATCH for-5.0 v5 10/23] ppc/pnv: Loop on the threads of the chip to find a matching NVT, (continued)
[PATCH for-5.0 v5 12/23] ppc/xive: Introduce a XiveFabric interface, Cédric Le Goater, 2019/11/15
[PATCH for-5.0 v5 13/23] ppc/pnv: Implement the XiveFabric interface, Cédric Le Goater, 2019/11/15
- Re: [PATCH for-5.0 v5 13/23] ppc/pnv: Implement the XiveFabric interface,
Greg Kurz <=
[PATCH for-5.0 v5 14/23] ppc/spapr: Implement the XiveFabric interface, Cédric Le Goater, 2019/11/15
[PATCH for-5.0 v5 15/23] ppc/xive: Use the XiveFabric and XivePresenter interfaces, Cédric Le Goater, 2019/11/15