From c035851ac0584e1491f6d0fa28d92a8c7a872362 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Mon, 15 Jan 2018 19:04:04 +0100 Subject: [PATCH] ppc/pnv: fix XSCOM core addressing on POWER9 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The XSCOM base address of the core chiplet was wrongly calculated. Use the OPAL macros to fix that and do a couple of renames. Signed-off-by: Cédric Le Goater Signed-off-by: David Gibson --- hw/ppc/pnv.c | 15 ++++++++------- hw/ppc/pnv_core.c | 2 +- include/hw/ppc/pnv.h | 1 - include/hw/ppc/pnv_xscom.h | 13 +++++++++++-- tests/pnv-xscom-test.c | 27 +++++++++++++++++---------- 5 files changed, 37 insertions(+), 21 deletions(-) diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index f9591cd41d..80245f57f1 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -721,7 +721,6 @@ static void pnv_chip_power8e_class_init(ObjectClass *klass, void *data) k->cores_mask = POWER8E_CORE_MASK; k->core_pir = pnv_chip_core_pir_p8; k->xscom_base = 0x003fc0000000000ull; - k->xscom_core_base = 0x10000000ull; dc->desc = "PowerNV Chip POWER8E"; } @@ -735,7 +734,6 @@ static void pnv_chip_power8_class_init(ObjectClass *klass, void *data) k->cores_mask = POWER8_CORE_MASK; k->core_pir = pnv_chip_core_pir_p8; k->xscom_base = 0x003fc0000000000ull; - k->xscom_core_base = 0x10000000ull; dc->desc = "PowerNV Chip POWER8"; } @@ -749,7 +747,6 @@ static void pnv_chip_power8nvl_class_init(ObjectClass *klass, void *data) k->cores_mask = POWER8_CORE_MASK; k->core_pir = pnv_chip_core_pir_p8; k->xscom_base = 0x003fc0000000000ull; - k->xscom_core_base = 0x10000000ull; dc->desc = "PowerNV Chip POWER8NVL"; } @@ -763,7 +760,6 @@ static void pnv_chip_power9_class_init(ObjectClass *klass, void *data) k->cores_mask = POWER9_CORE_MASK; k->core_pir = pnv_chip_core_pir_p9; k->xscom_base = 0x00603fc00000000ull; - k->xscom_core_base = 0x0ull; dc->desc = "PowerNV Chip POWER9"; } @@ -887,6 +883,7 @@ static void pnv_chip_realize(DeviceState *dev, Error **errp) && (i < chip->nr_cores); core_hwid++) { char core_name[32]; void *pnv_core = chip->cores + i * typesize; + uint64_t xscom_core_base; if (!(chip->cores_mask & (1ull << core_hwid))) { continue; @@ -910,9 +907,13 @@ static void pnv_chip_realize(DeviceState *dev, Error **errp) object_unref(OBJECT(pnv_core)); /* Each core has an XSCOM MMIO region */ - pnv_xscom_add_subregion(chip, - PNV_XSCOM_EX_CORE_BASE(pcc->xscom_core_base, - core_hwid), + if (!pnv_chip_is_power9(chip)) { + xscom_core_base = PNV_XSCOM_EX_BASE(core_hwid); + } else { + xscom_core_base = PNV_XSCOM_P9_EC_BASE(core_hwid); + } + + pnv_xscom_add_subregion(chip, xscom_core_base, &PNV_CORE(pnv_core)->xscom_regs); i++; } diff --git a/hw/ppc/pnv_core.c b/hw/ppc/pnv_core.c index 7e8a76df44..cbb64ad9e7 100644 --- a/hw/ppc/pnv_core.c +++ b/hw/ppc/pnv_core.c @@ -192,7 +192,7 @@ static void pnv_core_realize(DeviceState *dev, Error **errp) snprintf(name, sizeof(name), "xscom-core.%d", cc->core_id); pnv_xscom_region_init(&pc->xscom_regs, OBJECT(dev), &pnv_core_xscom_ops, - pc, name, PNV_XSCOM_EX_CORE_SIZE); + pc, name, PNV_XSCOM_EX_SIZE); return; err: diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h index f023f1ec99..90759240a7 100644 --- a/include/hw/ppc/pnv.h +++ b/include/hw/ppc/pnv.h @@ -74,7 +74,6 @@ typedef struct PnvChipClass { uint64_t cores_mask; hwaddr xscom_base; - hwaddr xscom_core_base; uint32_t (*core_pir)(PnvChip *chip, uint32_t core_id); } PnvChipClass; diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h index 7252e219e2..fb1bd5df09 100644 --- a/include/hw/ppc/pnv_xscom.h +++ b/include/hw/ppc/pnv_xscom.h @@ -21,6 +21,8 @@ #include "qom/object.h" +typedef struct PnvChip PnvChip; + typedef struct PnvXScomInterface { Object parent; } PnvXScomInterface; @@ -54,8 +56,15 @@ typedef struct PnvXScomInterfaceClass { * PCB SLAVE 0x110Fxxxx */ -#define PNV_XSCOM_EX_CORE_BASE(base, i) ((base) | ((uint64_t)(i) << 24)) -#define PNV_XSCOM_EX_CORE_SIZE 0x100000 +#define PNV_XSCOM_EX_CORE_BASE 0x10000000ull + +#define PNV_XSCOM_EX_BASE(core) \ + (PNV_XSCOM_EX_CORE_BASE | ((uint64_t)(core) << 24)) +#define PNV_XSCOM_EX_SIZE 0x100000 + +#define PNV_XSCOM_P9_EC_BASE(core) \ + ((uint64_t)(((core) & 0x1F) + 0x20) << 24) +#define PNV_XSCOM_P9_EC_SIZE 0x100000 #define PNV_XSCOM_LPC_BASE 0xb0020 #define PNV_XSCOM_LPC_SIZE 0x4 diff --git a/tests/pnv-xscom-test.c b/tests/pnv-xscom-test.c index 9d545c4718..efb7c838b5 100644 --- a/tests/pnv-xscom-test.c +++ b/tests/pnv-xscom-test.c @@ -21,7 +21,6 @@ typedef struct PnvChip { PnvChipType chip_type; const char *cpu_model; uint64_t xscom_base; - uint64_t xscom_core_base; uint64_t cfam_id; uint32_t first_core; } PnvChip; @@ -31,14 +30,12 @@ static const PnvChip pnv_chips[] = { .chip_type = PNV_CHIP_POWER8, .cpu_model = "POWER8", .xscom_base = 0x0003fc0000000000ull, - .xscom_core_base = 0x10000000ull, .cfam_id = 0x220ea04980000000ull, .first_core = 0x1, }, { .chip_type = PNV_CHIP_POWER8NVL, .cpu_model = "POWER8NVL", .xscom_base = 0x0003fc0000000000ull, - .xscom_core_base = 0x10000000ull, .cfam_id = 0x120d304980000000ull, .first_core = 0x1, }, @@ -47,7 +44,6 @@ static const PnvChip pnv_chips[] = { .chip_type = PNV_CHIP_POWER9, .cpu_model = "POWER9", .xscom_base = 0x000603fc00000000ull, - .xscom_core_base = 0x0ull, .cfam_id = 0x220d104900008000ull, .first_core = 0x0, }, @@ -89,16 +85,27 @@ static void test_cfam_id(const void *data) qtest_quit(global_qtest); } -#define PNV_XSCOM_EX_CORE_BASE(chip, i) \ - ((chip)->xscom_core_base | (((uint64_t)i) << 24)) + +#define PNV_XSCOM_EX_CORE_BASE 0x10000000ull +#define PNV_XSCOM_EX_BASE(core) \ + (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_EX_DTS_RESULT0 0x50000 static void test_xscom_core(const PnvChip *chip) { - uint32_t first_core_dts0 = - PNV_XSCOM_EX_CORE_BASE(chip, chip->first_core) | - PNV_XSCOM_EX_DTS_RESULT0; - uint64_t dts0 = pnv_xscom_read(chip, first_core_dts0); + uint32_t first_core_dts0 = PNV_XSCOM_EX_DTS_RESULT0; + uint64_t dts0; + + if (chip->chip_type != PNV_CHIP_POWER9) { + first_core_dts0 |= PNV_XSCOM_EX_BASE(chip->first_core); + } else { + first_core_dts0 |= PNV_XSCOM_P9_EC_BASE(chip->first_core); + } + + dts0 = pnv_xscom_read(chip, first_core_dts0); g_assert_cmphex(dts0, ==, 0x26f024f023f0000ull); } -- GitLab