[PATCH 02/13] ppc/pnv: Introduce PnvPsiClass::compat

[Greg Kurz]

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 <address@hidden>
---
 hw/ppc/pnv_psi.c         |   25 +++++++++++--------------
 include/hw/ppc/pnv_psi.h |    2 ++
 2 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c
index 572924388b3c..98a82b25e01f 100644
--- 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 a044aab304ae..fc068c95e543 100644
--- 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;