ppc/pnv: Introduce PnvPsiClass::compat

The Processor Service Interface (PSI) model has a chip_type class level
attribute, which is used to generate the content of the "compatible" DT
property according to the CPU type.

Since the PSI model already has specialized classes for each supported
CPU type, it seems cleaner to achieve this with QOM. Provide the content
of the "compatible" property with a new class level attribute.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157623837974.360005.14706607446188964477.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c
index 572924388b3c7ef037e6c892393f101ac8ccb77f..98a82b25e01f2c61fd8cf95ee378813615e5354a 100644 (file)
--- a/hw/ppc/pnv_psi.c
+++ b/hw/ppc/pnv_psi.c
@@ -536,10 +536,6 @@ static void pnv_psi_power8_realize(DeviceState *dev, Error **errp)
     qemu_register_reset(pnv_psi_reset, dev);
 }
 
-static const char compat_p8[] = "ibm,power8-psihb-x\0ibm,psihb-x";
-static const char compat_p9[] = "ibm,power9-psihb-x\0ibm,psihb-x";
-static const char compat_p10[] = "ibm,power10-psihb-x\0ibm,psihb-x";
-
 static int pnv_psi_dt_xscom(PnvXScomInterface *dev, void *fdt, int xscom_offset)
 {
     PnvPsiClass *ppc = PNV_PSI_GET_CLASS(dev);
@@ -558,16 +554,8 @@ static int pnv_psi_dt_xscom(PnvXScomInterface *dev, void *fdt, int xscom_offset)
     _FDT(fdt_setprop(fdt, offset, "reg", reg, sizeof(reg)));
     _FDT(fdt_setprop_cell(fdt, offset, "#address-cells", 2));
     _FDT(fdt_setprop_cell(fdt, offset, "#size-cells", 1));
-    if (ppc->chip_type == PNV_CHIP_POWER10) {
-        _FDT(fdt_setprop(fdt, offset, "compatible", compat_p10,
-                         sizeof(compat_p10)));
-    } else if (ppc->chip_type == PNV_CHIP_POWER9) {
-        _FDT(fdt_setprop(fdt, offset, "compatible", compat_p9,
-                         sizeof(compat_p9)));
-    } else {
-        _FDT(fdt_setprop(fdt, offset, "compatible", compat_p8,
-                         sizeof(compat_p8)));
-    }
+    _FDT(fdt_setprop(fdt, offset, "compatible", ppc->compat,
+                     ppc->compat_size));
     return 0;
 }
 
@@ -581,6 +569,7 @@ static void pnv_psi_power8_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     PnvPsiClass *ppc = PNV_PSI_CLASS(klass);
+    static const char compat[] = "ibm,power8-psihb-x\0ibm,psihb-x";
 
     dc->desc    = "PowerNV PSI Controller POWER8";
     dc->realize = pnv_psi_power8_realize;
@@ -590,6 +579,8 @@ static void pnv_psi_power8_class_init(ObjectClass *klass, void *data)
     ppc->xscom_size = PNV_XSCOM_PSIHB_SIZE;
     ppc->bar_mask   = PSIHB_BAR_MASK;
     ppc->irq_set    = pnv_psi_power8_irq_set;
+    ppc->compat     = compat;
+    ppc->compat_size = sizeof(compat);
 }
 
 static const TypeInfo pnv_psi_power8_info = {
@@ -888,6 +879,7 @@ static void pnv_psi_power9_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     PnvPsiClass *ppc = PNV_PSI_CLASS(klass);
     XiveNotifierClass *xfc = XIVE_NOTIFIER_CLASS(klass);
+    static const char compat[] = "ibm,power9-psihb-x\0ibm,psihb-x";
 
     dc->desc    = "PowerNV PSI Controller POWER9";
     dc->realize = pnv_psi_power9_realize;
@@ -897,6 +889,8 @@ static void pnv_psi_power9_class_init(ObjectClass *klass, void *data)
     ppc->xscom_size = PNV9_XSCOM_PSIHB_SIZE;
     ppc->bar_mask   = PSIHB9_BAR_MASK;
     ppc->irq_set    = pnv_psi_power9_irq_set;
+    ppc->compat     = compat;
+    ppc->compat_size = sizeof(compat);
 
     xfc->notify      = pnv_psi_notify;
 }
@@ -917,12 +911,15 @@ static void pnv_psi_power10_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     PnvPsiClass *ppc = PNV_PSI_CLASS(klass);
+    static const char compat[] = "ibm,power10-psihb-x\0ibm,psihb-x";
 
     dc->desc    = "PowerNV PSI Controller POWER10";
 
     ppc->chip_type  = PNV_CHIP_POWER10;
     ppc->xscom_pcba = PNV10_XSCOM_PSIHB_BASE;
     ppc->xscom_size = PNV10_XSCOM_PSIHB_SIZE;
+    ppc->compat     = compat;
+    ppc->compat_size = sizeof(compat);
 }
 
 static const TypeInfo pnv_psi_power10_info = {

diff --git a/include/hw/ppc/pnv_psi.h b/include/hw/ppc/pnv_psi.h
index a044aab304ae5e502d539c6d75979f6e2002caee..fc068c95e54319dde3bcdfe8e9b23eaab31bb536 100644 (file)
--- a/include/hw/ppc/pnv_psi.h
+++ b/include/hw/ppc/pnv_psi.h
@@ -83,6 +83,8 @@ typedef struct PnvPsiClass {
     uint32_t xscom_pcba;
     uint32_t xscom_size;
     uint64_t bar_mask;
+    const char *compat;
+    int compat_size;
 
     void (*irq_set)(PnvPsi *psi, int, bool state);
 } PnvPsiClass;