From ab17a3fe7454c61d358b5fd47c05336687b78690 Mon Sep 17 00:00:00 2001 From: =?utf8?q?C=C3=A9dric=20Le=20Goater?= Date: Mon, 9 Aug 2021 15:45:25 +0200 Subject: [PATCH] ppc/pnv: Use a simple incrementing index for the chip-id MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit When the QEMU PowerNV machine was introduced, multi chip support modeled a two socket system with dual chip modules as found on some P8 Tuleta systems (8286-42A). But this is hardly used and not relevant for QEMU. Use a simple index instead. With this change, we can now increase the max socket number to 16 as found on high end systems. Signed-off-by: Cédric Le Goater Message-Id: <20210809134547.689560-5-clg@kaod.org> Reviewed-by: Greg Kurz Signed-off-by: David Gibson --- hw/ppc/pnv.c | 11 ++++++----- include/hw/ppc/pnv.h | 33 +++++++-------------------------- 2 files changed, 13 insertions(+), 31 deletions(-) diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index b122251d1a..025f01c557 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -809,9 +809,10 @@ static void pnv_init(MachineState *machine) * TODO: should we decide on how many chips we can create based * on #cores and Venice vs. Murano vs. Naples chip type etc..., */ - if (!is_power_of_2(pnv->num_chips) || pnv->num_chips > 4) { + if (!is_power_of_2(pnv->num_chips) || pnv->num_chips > 16) { error_report("invalid number of chips: '%d'", pnv->num_chips); - error_printf("Try '-smp sockets=N'. Valid values are : 1, 2 or 4.\n"); + error_printf( + "Try '-smp sockets=N'. Valid values are : 1, 2, 4, 8 and 16.\n"); exit(1); } @@ -819,6 +820,7 @@ static void pnv_init(MachineState *machine) for (i = 0; i < pnv->num_chips; i++) { char chip_name[32]; Object *chip = OBJECT(qdev_new(chip_typename)); + int chip_id = i; pnv->chips[i] = PNV_CHIP(chip); @@ -831,10 +833,9 @@ static void pnv_init(MachineState *machine) &error_fatal); } - snprintf(chip_name, sizeof(chip_name), "chip[%d]", PNV_CHIP_HWID(i)); + snprintf(chip_name, sizeof(chip_name), "chip[%d]", chip_id); object_property_add_child(OBJECT(pnv), chip_name, chip); - object_property_set_int(chip, "chip-id", PNV_CHIP_HWID(i), - &error_fatal); + object_property_set_int(chip, "chip-id", chip_id, &error_fatal); object_property_set_int(chip, "nr-cores", machine->smp.cores, &error_fatal); object_property_set_int(chip, "nr-threads", machine->smp.threads, diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h index 3fec7c87d8..aa08d79d24 100644 --- a/include/hw/ppc/pnv.h +++ b/include/hw/ppc/pnv.h @@ -174,25 +174,6 @@ DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER9, DECLARE_INSTANCE_CHECKER(PnvChip, PNV_CHIP_POWER10, 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 : - * - * 0x0, 0x1, 0x10, 0x11 - * - * 4 chips should be the maximum - * - * TODO: use a machine property to define the chip ids - */ -#define PNV_CHIP_HWID(i) ((((i) & 0x3e) << 3) | ((i) & 0x1)) - -/* - * Converts back a HW chip id to an index. This is useful to calculate - * the MMIO addresses of some controllers which depend on the chip id. - */ -#define PNV_CHIP_INDEX(chip) \ - (((chip)->chip_id >> 2) * 2 + ((chip)->chip_id & 0x3)) - PowerPCCPU *pnv_chip_find_cpu(PnvChip *chip, uint32_t pir); #define TYPE_PNV_MACHINE MACHINE_TYPE_NAME("powernv") @@ -256,11 +237,11 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor); #define PNV_OCC_COMMON_AREA_SIZE 0x0000000000800000ull #define PNV_OCC_COMMON_AREA_BASE 0x7fff800000ull #define PNV_OCC_SENSOR_BASE(chip) (PNV_OCC_COMMON_AREA_BASE + \ - PNV_OCC_SENSOR_DATA_BLOCK_BASE(PNV_CHIP_INDEX(chip))) + PNV_OCC_SENSOR_DATA_BLOCK_BASE((chip)->chip_id)) #define PNV_HOMER_SIZE 0x0000000000400000ull #define PNV_HOMER_BASE(chip) \ - (0x7ffd800000ull + ((uint64_t)PNV_CHIP_INDEX(chip)) * PNV_HOMER_SIZE) + (0x7ffd800000ull + ((uint64_t)(chip)->chip_id) * PNV_HOMER_SIZE) /* @@ -279,16 +260,16 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor); */ #define PNV_ICP_SIZE 0x0000000000100000ull #define PNV_ICP_BASE(chip) \ - (0x0003ffff80000000ull + (uint64_t) PNV_CHIP_INDEX(chip) * PNV_ICP_SIZE) + (0x0003ffff80000000ull + (uint64_t) (chip)->chip_id * PNV_ICP_SIZE) #define PNV_PSIHB_SIZE 0x0000000000100000ull #define PNV_PSIHB_BASE(chip) \ - (0x0003fffe80000000ull + (uint64_t)PNV_CHIP_INDEX(chip) * PNV_PSIHB_SIZE) + (0x0003fffe80000000ull + (uint64_t)(chip)->chip_id * PNV_PSIHB_SIZE) #define PNV_PSIHB_FSP_SIZE 0x0000000100000000ull #define PNV_PSIHB_FSP_BASE(chip) \ - (0x0003ffe000000000ull + (uint64_t)PNV_CHIP_INDEX(chip) * \ + (0x0003ffe000000000ull + (uint64_t)(chip)->chip_id * \ PNV_PSIHB_FSP_SIZE) /* @@ -324,11 +305,11 @@ void pnv_bmc_set_pnor(IPMIBmc *bmc, PnvPnor *pnor); #define PNV9_OCC_COMMON_AREA_SIZE 0x0000000000800000ull #define PNV9_OCC_COMMON_AREA_BASE 0x203fff800000ull #define PNV9_OCC_SENSOR_BASE(chip) (PNV9_OCC_COMMON_AREA_BASE + \ - PNV_OCC_SENSOR_DATA_BLOCK_BASE(PNV_CHIP_INDEX(chip))) + PNV_OCC_SENSOR_DATA_BLOCK_BASE((chip)->chip_id)) #define PNV9_HOMER_SIZE 0x0000000000400000ull #define PNV9_HOMER_BASE(chip) \ - (0x203ffd800000ull + ((uint64_t)PNV_CHIP_INDEX(chip)) * PNV9_HOMER_SIZE) + (0x203ffd800000ull + ((uint64_t)(chip)->chip_id) * PNV9_HOMER_SIZE) /* * POWER10 MMIO base addresses - 16TB stride per chip -- 2.11.0