[Qemu-devel] [PATCH 07/27] ppc/pnv: introduce a new dt_populate() operation to the chip model

["Cédric Le Goater" <clg@kaod.org>]

The POWER9 and POWER8 processors have a different set of devices and a
different device tree layout.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
 include/hw/ppc/pnv.h |  1 +
 hw/ppc/pnv.c         | 27 +++++++++++++++++++++++++--
 2 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
index ebbb3d0e9aa7..fa9ec50fd5be 100644
--- a/include/hw/ppc/pnv.h
+++ b/include/hw/ppc/pnv.h
@@ -102,6 +102,7 @@ typedef struct PnvChipClass {
     uint32_t (*core_pir)(PnvChip *chip, uint32_t core_id);
     void (*intc_create)(PnvChip *chip, PowerPCCPU *cpu, Error **errp);
     ISABus *(*isa_create)(PnvChip *chip, Error **errp);
+    void (*dt_populate)(PnvChip *chip, void *fdt);
 } PnvChipClass;
 
 #define PNV_CHIP_TYPE_SUFFIX "-" TYPE_PNV_CHIP
diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index a7ec76dbd6c7..087541a91a72 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -267,7 +267,7 @@ static void pnv_dt_icp(PnvChip *chip, void *fdt, uint32_t pir,
     g_free(reg);
 }
 
-static void pnv_dt_chip(PnvChip *chip, void *fdt)
+static void pnv_chip_power8_dt_populate(PnvChip *chip, void *fdt)
 {
     const char *typename = pnv_chip_core_typename(chip);
     size_t typesize = object_type_get_instance_size(typename);
@@ -289,6 +289,25 @@ static void pnv_dt_chip(PnvChip *chip, void *fdt)
     }
 }
 
+static void pnv_chip_power9_dt_populate(PnvChip *chip, void *fdt)
+{
+    const char *typename = pnv_chip_core_typename(chip);
+    size_t typesize = object_type_get_instance_size(typename);
+    int i;
+
+    pnv_dt_xscom(chip, fdt, 0);
+
+    for (i = 0; i < chip->nr_cores; i++) {
+        PnvCore *pnv_core = PNV_CORE(chip->cores + i * typesize);
+
+        pnv_dt_core(chip, pnv_core, fdt);
+    }
+
+    if (chip->ram_size) {
+        pnv_dt_memory(fdt, chip->chip_id, chip->ram_start, chip->ram_size);
+    }
+}
+
 static void pnv_dt_rtc(ISADevice *d, void *fdt, int lpc_off)
 {
     uint32_t io_base = d->ioport_id;
@@ -474,7 +493,7 @@ static void *pnv_dt_create(MachineState *machine)
 
     /* Populate device tree for each chip */
     for (i = 0; i < pnv->num_chips; i++) {
-        pnv_dt_chip(pnv->chips[i], fdt);
+        PNV_CHIP_GET_CLASS(pnv->chips[i])->dt_populate(pnv->chips[i], fdt);
     }
 
     /* Populate ISA devices on chip 0 */
@@ -858,6 +877,7 @@ static void pnv_chip_power8e_class_init(ObjectClass *klass, void *data)
     k->core_pir = pnv_chip_core_pir_p8;
     k->intc_create = pnv_chip_power8_intc_create;
     k->isa_create = pnv_chip_power8_isa_create;
+    k->dt_populate = pnv_chip_power8_dt_populate;
     k->xscom_base = 0x003fc0000000000ull;
     dc->desc = "PowerNV Chip POWER8E";
 
@@ -876,6 +896,7 @@ static void pnv_chip_power8_class_init(ObjectClass *klass, void *data)
     k->core_pir = pnv_chip_core_pir_p8;
     k->intc_create = pnv_chip_power8_intc_create;
     k->isa_create = pnv_chip_power8_isa_create;
+    k->dt_populate = pnv_chip_power8_dt_populate;
     k->xscom_base = 0x003fc0000000000ull;
     dc->desc = "PowerNV Chip POWER8";
 
@@ -894,6 +915,7 @@ static void pnv_chip_power8nvl_class_init(ObjectClass *klass, void *data)
     k->core_pir = pnv_chip_core_pir_p8;
     k->intc_create = pnv_chip_power8_intc_create;
     k->isa_create = pnv_chip_power8nvl_isa_create;
+    k->dt_populate = pnv_chip_power8_dt_populate;
     k->xscom_base = 0x003fc0000000000ull;
     dc->desc = "PowerNV Chip POWER8NVL";
 
@@ -954,6 +976,7 @@ static void pnv_chip_power9_class_init(ObjectClass *klass, void *data)
     k->core_pir = pnv_chip_core_pir_p9;
     k->intc_create = pnv_chip_power9_intc_create;
     k->isa_create = pnv_chip_power9_isa_create;
+    k->dt_populate = pnv_chip_power9_dt_populate;
     k->xscom_base = 0x00603fc00000000ull;
     dc->desc = "PowerNV Chip POWER9";
 
-- 
2.20.1