ppc/pnv: Introduce PnvChipClass::intc_print_info() method

The pnv_pic_print_info() callback checks the type of the chip in order
to forward to the request appropriate interrupt controller. This can
be achieved with QOM. Introduce a method for this in the base chip class
and implement it in child classes.

This also prepares ground for the upcoming interrupt controller of POWER10
chips.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157623840755.360005.5002022339473369934.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

2 files changed, 26 insertions, 5 deletions

diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index a2ad7258f8..35416d1b3f 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -831,6 +831,12 @@ static void pnv_chip_power8_intc_destroy(PnvChip *chip, PowerPCCPU *cpu)
     pnv_cpu->intc = NULL;
 }
 
+static void pnv_chip_power8_intc_print_info(PnvChip *chip, PowerPCCPU *cpu,
+                                            Monitor *mon)
+{
+    icp_pic_print_info(ICP(pnv_cpu_state(cpu)->intc), mon);
+}
+
 /*
  *    0:48  Reserved - Read as zeroes
  *   49:52  Node ID
@@ -888,6 +894,12 @@ static void pnv_chip_power9_intc_destroy(PnvChip *chip, PowerPCCPU *cpu)
     pnv_cpu->intc = NULL;
 }
 
+static void pnv_chip_power9_intc_print_info(PnvChip *chip, PowerPCCPU *cpu,
+                                            Monitor *mon)
+{
+    xive_tctx_pic_print_info(XIVE_TCTX(pnv_cpu_state(cpu)->intc), mon);
+}
+
 static void pnv_chip_power10_intc_create(PnvChip *chip, PowerPCCPU *cpu,
                                         Error **errp)
 {
@@ -909,6 +921,11 @@ static void pnv_chip_power10_intc_destroy(PnvChip *chip, PowerPCCPU *cpu)
     pnv_cpu->intc = NULL;
 }
 
+static void pnv_chip_power10_intc_print_info(PnvChip *chip, PowerPCCPU *cpu,
+                                             Monitor *mon)
+{
+}
+
 /*
  * Allowed core identifiers on a POWER8 Processor Chip :
  *
@@ -1085,6 +1102,7 @@ static void pnv_chip_power8e_class_init(ObjectClass *klass, void *data)
     k->intc_create = pnv_chip_power8_intc_create;
     k->intc_reset = pnv_chip_power8_intc_reset;
     k->intc_destroy = pnv_chip_power8_intc_destroy;
+    k->intc_print_info = pnv_chip_power8_intc_print_info;
     k->isa_create = pnv_chip_power8_isa_create;
     k->dt_populate = pnv_chip_power8_dt_populate;
     k->pic_print_info = pnv_chip_power8_pic_print_info;
@@ -1106,6 +1124,7 @@ static void pnv_chip_power8_class_init(ObjectClass *klass, void *data)
     k->intc_create = pnv_chip_power8_intc_create;
     k->intc_reset = pnv_chip_power8_intc_reset;
     k->intc_destroy = pnv_chip_power8_intc_destroy;
+    k->intc_print_info = pnv_chip_power8_intc_print_info;
     k->isa_create = pnv_chip_power8_isa_create;
     k->dt_populate = pnv_chip_power8_dt_populate;
     k->pic_print_info = pnv_chip_power8_pic_print_info;
@@ -1127,6 +1146,7 @@ static void pnv_chip_power8nvl_class_init(ObjectClass *klass, void *data)
     k->intc_create = pnv_chip_power8_intc_create;
     k->intc_reset = pnv_chip_power8_intc_reset;
     k->intc_destroy = pnv_chip_power8_intc_destroy;
+    k->intc_print_info = pnv_chip_power8_intc_print_info;
     k->isa_create = pnv_chip_power8nvl_isa_create;
     k->dt_populate = pnv_chip_power8_dt_populate;
     k->pic_print_info = pnv_chip_power8_pic_print_info;
@@ -1298,6 +1318,7 @@ static void pnv_chip_power9_class_init(ObjectClass *klass, void *data)
     k->intc_create = pnv_chip_power9_intc_create;
     k->intc_reset = pnv_chip_power9_intc_reset;
     k->intc_destroy = pnv_chip_power9_intc_destroy;
+    k->intc_print_info = pnv_chip_power9_intc_print_info;
     k->isa_create = pnv_chip_power9_isa_create;
     k->dt_populate = pnv_chip_power9_dt_populate;
     k->pic_print_info = pnv_chip_power9_pic_print_info;
@@ -1378,6 +1399,7 @@ static void pnv_chip_power10_class_init(ObjectClass *klass, void *data)
     k->intc_create = pnv_chip_power10_intc_create;
     k->intc_reset = pnv_chip_power10_intc_reset;
     k->intc_destroy = pnv_chip_power10_intc_destroy;
+    k->intc_print_info = pnv_chip_power10_intc_print_info;
     k->isa_create = pnv_chip_power10_isa_create;
     k->dt_populate = pnv_chip_power10_dt_populate;
     k->pic_print_info = pnv_chip_power10_pic_print_info;
@@ -1574,11 +1596,9 @@ static void pnv_pic_print_info(InterruptStatsProvider *obj,
     CPU_FOREACH(cs) {
         PowerPCCPU *cpu = POWERPC_CPU(cs);
 
-        if (pnv_chip_is_power9(pnv->chips[0])) {
-            xive_tctx_pic_print_info(XIVE_TCTX(pnv_cpu_state(cpu)->intc), mon);
-        } else {
-            icp_pic_print_info(ICP(pnv_cpu_state(cpu)->intc), mon);
-        }
+        /* XXX: loop on each chip/core/thread instead of CPU_FOREACH() */
+        PNV_CHIP_GET_CLASS(pnv->chips[0])->intc_print_info(pnv->chips[0], cpu,
+                                                           mon);
     }
 
     for (i = 0; i < pnv->num_chips; i++) {
diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
index c213bdd5ec..7d2402784d 100644
--- a/include/hw/ppc/pnv.h
+++ b/include/hw/ppc/pnv.h
@@ -133,6 +133,7 @@ typedef struct PnvChipClass {
     void (*intc_create)(PnvChip *chip, PowerPCCPU *cpu, Error **errp);
     void (*intc_reset)(PnvChip *chip, PowerPCCPU *cpu);
     void (*intc_destroy)(PnvChip *chip, PowerPCCPU *cpu);
+    void (*intc_print_info)(PnvChip *chip, PowerPCCPU *cpu, Monitor *mon);
     ISABus *(*isa_create)(PnvChip *chip, Error **errp);
     void (*dt_populate)(PnvChip *chip, void *fdt);
     void (*pic_print_info)(PnvChip *chip, Monitor *mon);