ppc/pnv: Introduce a POWER10 PnvChip and a powernv10 machine

This is an empty shell with the XSCOM bus and cores. The chip controllers
will come later.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20191205184454.10722-3-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

2 files changed, 52 insertions, 0 deletions

diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h
index 3a7bc3c57e..bfa61edfba 100644
--- a/include/hw/ppc/pnv.h
+++ b/include/hw/ppc/pnv.h
@@ -43,6 +43,7 @@ typedef enum PnvChipType {
     PNV_CHIP_POWER8,      /* AKA Venice */
     PNV_CHIP_POWER8NVL,   /* AKA Naples */
     PNV_CHIP_POWER9,      /* AKA Nimbus */
+    PNV_CHIP_POWER10,     /* AKA TBD */
 } PnvChipType;
 
 typedef struct PnvChip {
@@ -105,6 +106,14 @@ typedef struct Pnv9Chip {
 #define PNV9_PIR2FUSEDCORE(pir) (((pir) >> 3) & 0xf)
 #define PNV9_PIR2CHIP(pir)      (((pir) >> 8) & 0x7f)
 
+#define TYPE_PNV10_CHIP "pnv10-chip"
+#define PNV10_CHIP(obj) OBJECT_CHECK(Pnv10Chip, (obj), TYPE_PNV10_CHIP)
+
+typedef struct Pnv10Chip {
+    /*< private >*/
+    PnvChip      parent_obj;
+} Pnv10Chip;
+
 typedef struct PnvChipClass {
     /*< private >*/
     SysBusDeviceClass parent_class;
@@ -144,6 +153,10 @@ typedef struct PnvChipClass {
 #define PNV_CHIP_POWER9(obj) \
     OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER9)
 
+#define TYPE_PNV_CHIP_POWER10 PNV_CHIP_TYPE_NAME("power10_v1.0")
+#define PNV_CHIP_POWER10(obj) \
+    OBJECT_CHECK(PnvChip, (obj), TYPE_PNV_CHIP_POWER10)
+
 /*
  * This generates a HW chip id depending on an index, as found on a
  * two socket system with dual chip modules :
@@ -203,6 +216,16 @@ PnvChip *pnv_get_chip(uint32_t chip_id);
 #define PNV_FDT_ADDR          0x01000000
 #define PNV_TIMEBASE_FREQ     512000000ULL
 
+static inline bool pnv_chip_is_power10(const PnvChip *chip)
+{
+    return PNV_CHIP_GET_CLASS(chip)->chip_type == PNV_CHIP_POWER10;
+}
+
+static inline bool pnv_is_power10(PnvMachineState *pnv)
+{
+    return pnv_chip_is_power10(pnv->chips[0]);
+}
+
 /*
  * BMC helpers
  */
@@ -293,4 +316,14 @@ IPMIBmc *pnv_bmc_create(void);
 #define PNV9_HOMER_SIZE              0x0000000000300000ull
 #define PNV9_HOMER_BASE(chip)                                           \
     (0x203ffd800000ull + ((uint64_t)PNV_CHIP_INDEX(chip)) * PNV9_HOMER_SIZE)
+
+/*
+ * POWER10 MMIO base addresses - 16TB stride per chip
+ */
+#define PNV10_CHIP_BASE(chip, base)   \
+    ((base) + ((uint64_t) (chip)->chip_id << 44))
+
+#define PNV10_XSCOM_SIZE             0x0000000400000000ull
+#define PNV10_XSCOM_BASE(chip)       PNV10_CHIP_BASE(chip, 0x00603fc00000000ull)
+
 #endif /* PPC_PNV_H */
diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h
index 67641ed278..790eb3d8f3 100644
--- a/include/hw/ppc/pnv_xscom.h
+++ b/include/hw/ppc/pnv_xscom.h
@@ -70,6 +70,9 @@ typedef struct PnvXScomInterfaceClass {
 #define PNV_XSCOM_OCC_BASE        0x0066000
 #define PNV_XSCOM_OCC_SIZE        0x6000
 
+/*
+ * Layout of the XSCOM PCB addresses (POWER 9)
+ */
 #define PNV9_XSCOM_EC_BASE(core) \
     ((uint64_t)(((core) & 0x1F) + 0x20) << 24)
 #define PNV9_XSCOM_EC_SIZE        0x100000
@@ -87,6 +90,22 @@ typedef struct PnvXScomInterfaceClass {
 #define PNV9_XSCOM_XIVE_BASE      0x5013000
 #define PNV9_XSCOM_XIVE_SIZE      0x300
 
+/*
+ * Layout of the XSCOM PCB addresses (POWER 10)
+ */
+#define PNV10_XSCOM_EQ_CHIPLET(core)  (0x20 + ((core) >> 2))
+#define PNV10_XSCOM_EQ(chiplet)       ((chiplet) << 24)
+#define PNV10_XSCOM_EC(proc)                    \
+    ((0x2 << 16) | ((1 << (3 - (proc))) << 12))
+
+#define PNV10_XSCOM_EQ_BASE(core)     \
+    ((uint64_t) PNV10_XSCOM_EQ(PNV10_XSCOM_EQ_CHIPLET(core)))
+#define PNV10_XSCOM_EQ_SIZE        0x100000
+
+#define PNV10_XSCOM_EC_BASE(core) \
+    ((uint64_t) PNV10_XSCOM_EQ_BASE(core) | PNV10_XSCOM_EC(core & 0x3))
+#define PNV10_XSCOM_EC_SIZE        0x100000
+
 extern void pnv_xscom_realize(PnvChip *chip, uint64_t size, Error **errp);
 extern int pnv_dt_xscom(PnvChip *chip, void *fdt, int offset);