tests/qtest: Add xscom tests for powernv10 machine

Add basic chip and core xscom tests for powernv10 machine, equivalent
to tests for powernv8 and 9.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
Message-ID: <20230706053923.115003-3-npiggin@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>

tests/qtest/pnv-xscom-test.c

@@ -15,6 +15,7 @@ typedef enum PnvChipType {
     PNV_CHIP_POWER8,      /* AKA Venice */
     PNV_CHIP_POWER8NVL,   /* AKA Naples */
     PNV_CHIP_POWER9,      /* AKA Nimbus */
+    PNV_CHIP_POWER10,
 } PnvChipType;
 
 typedef struct PnvChip {
@@ -46,13 +47,22 @@ static const PnvChip pnv_chips[] = {
         .cfam_id    = 0x220d104900008000ull,
         .first_core = 0x0,
     },
+    {
+        .chip_type  = PNV_CHIP_POWER10,
+        .cpu_model  = "POWER10",
+        .xscom_base = 0x000603fc00000000ull,
+        .cfam_id    = 0x120da04900008000ull,
+        .first_core = 0x0,
+    },
 };
 
 static uint64_t pnv_xscom_addr(const PnvChip *chip, uint32_t pcba)
 {
     uint64_t addr = chip->xscom_base;
 
-    if (chip->chip_type == PNV_CHIP_POWER9) {
+    if (chip->chip_type == PNV_CHIP_POWER10) {
+        addr |= ((uint64_t) pcba << 3);
+    } else if (chip->chip_type == PNV_CHIP_POWER9) {
         addr |= ((uint64_t) pcba << 3);
     } else {
         addr |= (((uint64_t) pcba << 4) & ~0xffull) |
@@ -82,6 +92,8 @@ static void test_cfam_id(const void *data)
 
     if (chip->chip_type == PNV_CHIP_POWER9) {
         machine = "powernv9";
+    } else if (chip->chip_type == PNV_CHIP_POWER10) {
+        machine = "powernv10";
     }
 
     qts = qtest_initf("-M %s -accel tcg -cpu %s",
@@ -96,23 +108,36 @@ static void test_cfam_id(const void *data)
     (PNV_XSCOM_EX_CORE_BASE | ((uint64_t)(core) << 24))
 #define PNV_XSCOM_P9_EC_BASE(core) \
     ((uint64_t)(((core) & 0x1F) + 0x20) << 24)
+#define PNV_XSCOM_P10_EC_BASE(core) \
+    ((uint64_t)((((core) & ~0x3) + 0x20) << 24) + 0x20000 + \
+     (0x1000 << (3 - (core & 0x3))))
 
 #define PNV_XSCOM_EX_DTS_RESULT0     0x50000
 
 static void test_xscom_core(QTestState *qts, const PnvChip *chip)
 {
-    uint32_t first_core_dts0 = PNV_XSCOM_EX_DTS_RESULT0;
-    uint64_t dts0;
+    if (chip->chip_type == PNV_CHIP_POWER10) {
+        uint32_t first_core_thread_state =
+                 PNV_XSCOM_P10_EC_BASE(chip->first_core) + 0x412;
+        uint64_t thread_state;
+
+        thread_state = pnv_xscom_read(qts, chip, first_core_thread_state);
 
-    if (chip->chip_type != PNV_CHIP_POWER9) {
-        first_core_dts0 |= PNV_XSCOM_EX_BASE(chip->first_core);
+        g_assert_cmphex(thread_state, ==, 0);
     } else {
-        first_core_dts0 |= PNV_XSCOM_P9_EC_BASE(chip->first_core);
-    }
+        uint32_t first_core_dts0 = PNV_XSCOM_EX_DTS_RESULT0;
+        uint64_t dts0;
 
-    dts0 = pnv_xscom_read(qts, chip, first_core_dts0);
+        if (chip->chip_type == PNV_CHIP_POWER9) {
+            first_core_dts0 |= PNV_XSCOM_P9_EC_BASE(chip->first_core);
+        } else { /* POWER8 */
+            first_core_dts0 |= PNV_XSCOM_EX_BASE(chip->first_core);
+        }
 
-    g_assert_cmphex(dts0, ==, 0x26f024f023f0000ull);
+        dts0 = pnv_xscom_read(qts, chip, first_core_dts0);
+
+        g_assert_cmphex(dts0, ==, 0x26f024f023f0000ull);
+    }
 }
 
 static void test_core(const void *data)
@@ -123,6 +148,8 @@ static void test_core(const void *data)
 
     if (chip->chip_type == PNV_CHIP_POWER9) {
         machine = "powernv9";
+    } else if (chip->chip_type == PNV_CHIP_POWER10) {
+        machine = "powernv10";
     }
 
     qts = qtest_initf("-M %s -accel tcg -cpu %s",