>From 680fd6ff7c99e669708fbc5cfdbfcd95e83e7c07 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Wed, 21 Nov 2018 10:29:45 +0100 Subject: [PATCH] ppc/pnv: add a PSI bridge model for POWER9 processor MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The PSI bridge on POWER9 is very similar to POWER8. The BAR is still set through XSCOM but the controls are now entirely done with MMIOs. More interrupts are defined and the interrupt controller interface has changed to XIVE. The POWER9 model is a first example of the usage of the notify() handler of the XiveFabric interface, linking the PSI XiveSource to its owning device model. Signed-off-by: Cédric Le Goater --- include/hw/ppc/pnv.h | 6 + include/hw/ppc/pnv_psi.h | 50 ++++- include/hw/ppc/pnv_xscom.h | 3 + hw/ppc/pnv.c | 20 +- hw/ppc/pnv_psi.c | 390 ++++++++++++++++++++++++++++++++++--- 5 files changed, 444 insertions(+), 25 deletions(-) diff --git a/include/hw/ppc/pnv.h b/include/hw/ppc/pnv.h index c402e5d5844b..8be1147481f9 100644 --- a/include/hw/ppc/pnv.h +++ b/include/hw/ppc/pnv.h @@ -88,6 +88,7 @@ typedef struct Pnv9Chip { /*< public >*/ PnvXive xive; + PnvPsi psi; } Pnv9Chip; typedef struct PnvChipClass { @@ -250,11 +251,16 @@ void pnv_bmc_powerdown(IPMIBmc *bmc); #define PNV9_XIVE_PC_SIZE 0x0000001000000000ull #define PNV9_XIVE_PC_BASE(chip) PNV9_CHIP_BASE(chip, 0x0006018000000000ull) +#define PNV9_PSIHB_SIZE 0x0000000000100000ull +#define PNV9_PSIHB_BASE(chip) PNV9_CHIP_BASE(chip, 0x0006030203000000ull) + #define PNV9_XIVE_IC_SIZE 0x0000000000080000ull #define PNV9_XIVE_IC_BASE(chip) PNV9_CHIP_BASE(chip, 0x0006030203100000ull) #define PNV9_XIVE_TM_SIZE 0x0000000000040000ull #define PNV9_XIVE_TM_BASE(chip) PNV9_CHIP_BASE(chip, 0x0006030203180000ull) +#define PNV9_PSIHB_ESB_SIZE 0x0000000000010000ull +#define PNV9_PSIHB_ESB_BASE(chip) PNV9_CHIP_BASE(chip, 0x00060302031c0000ull) #endif /* _PPC_PNV_H */ diff --git a/include/hw/ppc/pnv_psi.h b/include/hw/ppc/pnv_psi.h index f6af5eae1fa8..b8f8d082bcf9 100644 --- a/include/hw/ppc/pnv_psi.h +++ b/include/hw/ppc/pnv_psi.h @@ -21,10 +21,35 @@ #include "hw/sysbus.h" #include "hw/ppc/xics.h" +#include "hw/ppc/xive.h" #define TYPE_PNV_PSI "pnv-psi" #define PNV_PSI(obj) \ OBJECT_CHECK(PnvPsi, (obj), TYPE_PNV_PSI) +#define PNV_PSI_CLASS(klass) \ + OBJECT_CLASS_CHECK(PnvPsiClass, (klass), TYPE_PNV_PSI) +#define PNV_PSI_GET_CLASS(obj) \ + OBJECT_GET_CLASS(PnvPsiClass, (obj), TYPE_PNV_PSI) + +typedef struct PnvPsi PnvPsi; +typedef struct PnvChip PnvChip; +typedef struct PnvPsiClass { + SysBusDeviceClass parent_class; + + int chip_type; + uint32_t xscom_pcba; + uint32_t xscom_size; + + void (*irq_set)(PnvPsi *psi, int, bool state); +} PnvPsiClass; + +#define TYPE_PNV_PSI_POWER8 TYPE_PNV_PSI "-POWER8" +#define PNV_PSI_POWER8(obj) \ + OBJECT_CHECK(PnvPsi, (obj), TYPE_PNV_PSI_POWER8) + +#define TYPE_PNV_PSI_POWER9 TYPE_PNV_PSI "-POWER9" +#define PNV_PSI_POWER9(obj) \ + OBJECT_CHECK(PnvPsi, (obj), TYPE_PNV_PSI_POWER9) #define PSIHB_XSCOM_MAX 0x20 @@ -38,9 +63,12 @@ typedef struct PnvPsi { /* MemoryRegion fsp_mr; */ uint64_t fsp_bar; - /* Interrupt generation */ + /* P8 Interrupt generation */ ICSState ics; + /* P9 Interrupt generation */ + XiveSource source; + /* Registers */ uint64_t regs[PSIHB_XSCOM_MAX]; @@ -60,6 +88,24 @@ typedef enum PnvPsiIrq { #define PSI_NUM_INTERRUPTS 6 -extern void pnv_psi_irq_set(PnvPsi *psi, PnvPsiIrq irq, bool state); +/* P9 PSI Interrupts */ +#define PSIHB9_IRQ_PSI 0 +#define PSIHB9_IRQ_OCC 1 +#define PSIHB9_IRQ_FSI 2 +#define PSIHB9_IRQ_LPCHC 3 +#define PSIHB9_IRQ_LOCAL_ERR 4 +#define PSIHB9_IRQ_GLOBAL_ERR 5 +#define PSIHB9_IRQ_TPM 6 +#define PSIHB9_IRQ_LPC_SIRQ0 7 +#define PSIHB9_IRQ_LPC_SIRQ1 8 +#define PSIHB9_IRQ_LPC_SIRQ2 9 +#define PSIHB9_IRQ_LPC_SIRQ3 10 +#define PSIHB9_IRQ_SBE_I2C 11 +#define PSIHB9_IRQ_DIO 12 +#define PSIHB9_IRQ_PSU 13 +#define PSIHB9_NUM_IRQS 14 + +void pnv_psi_irq_set(PnvPsi *psi, int irq, bool state); +void pnv_psi_pic_print_info(PnvPsi *psi, Monitor *mon); #endif /* _PPC_PNV_PSI_H */ diff --git a/include/hw/ppc/pnv_xscom.h b/include/hw/ppc/pnv_xscom.h index 5bd43467a1ab..019b45bf9189 100644 --- a/include/hw/ppc/pnv_xscom.h +++ b/include/hw/ppc/pnv_xscom.h @@ -82,6 +82,9 @@ typedef struct PnvXScomInterfaceClass { #define PNV_XSCOM_PBCQ_SPCI_BASE 0x9013c00 #define PNV_XSCOM_PBCQ_SPCI_SIZE 0x5 +#define PNV9_XSCOM_PSIHB_BASE 0x5012900 +#define PNV9_XSCOM_PSIHB_SIZE 0x100 + #define PNV9_XSCOM_XIVE_BASE 0x5013000 #define PNV9_XSCOM_XIVE_SIZE 0x300 diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c index b6af896c30e4..e67c9d7d3995 100644 --- a/hw/ppc/pnv.c +++ b/hw/ppc/pnv.c @@ -743,7 +743,7 @@ static void pnv_chip_power8_instance_init(Object *obj) PnvChipClass *pcc = PNV_CHIP_GET_CLASS(obj); int i; - object_initialize(&chip8->psi, sizeof(chip8->psi), TYPE_PNV_PSI); + object_initialize(&chip8->psi, sizeof(chip8->psi), TYPE_PNV_PSI_POWER8); object_property_add_child(obj, "psi", OBJECT(&chip8->psi), NULL); object_property_add_const_link(OBJECT(&chip8->psi), "xics", OBJECT(qdev_get_machine()), &error_abort); @@ -923,6 +923,11 @@ static void pnv_chip_power9_instance_init(Object *obj) object_property_add_child(obj, "xive", OBJECT(&chip9->xive), NULL); object_property_add_const_link(OBJECT(&chip9->xive), "chip", obj, &error_abort); + + object_initialize(&chip9->psi, sizeof(chip9->psi), TYPE_PNV_PSI_POWER9); + object_property_add_child(obj, "psi", OBJECT(&chip9->psi), NULL); + object_property_add_const_link(OBJECT(&chip9->psi), "chip", obj, + &error_abort); } static void pnv_chip_power9_realize(DeviceState *dev, Error **errp) @@ -955,6 +960,18 @@ static void pnv_chip_power9_realize(DeviceState *dev, Error **errp) qdev_set_parent_bus(DEVICE(&chip9->xive), sysbus_get_default()); pnv_xscom_add_subregion(chip, PNV9_XSCOM_XIVE_BASE, &chip9->xive.xscom_regs); + + /* Processor Service Interface (PSI) Host Bridge */ + object_property_set_int(OBJECT(&chip9->psi), PNV9_PSIHB_BASE(chip), + "bar", &error_fatal); + object_property_set_bool(OBJECT(&chip9->psi), true, "realized", &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + qdev_set_parent_bus(DEVICE(&chip9->psi), sysbus_get_default()); + pnv_xscom_add_subregion(chip, PNV9_XSCOM_PSIHB_BASE, + &chip9->psi.xscom_regs); } static void pnv_chip_power9_class_init(ObjectClass *klass, void *data) @@ -1188,6 +1205,7 @@ static void pnv_pic_print_info(InterruptStatsProvider *obj, Pnv9Chip *chip9 = PNV9_CHIP(chip); pnv_xive_pic_print_info(&chip9->xive, mon); + pnv_psi_pic_print_info(&chip9->psi, mon); } else { Pnv8Chip *chip8 = PNV8_CHIP(chip); diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c index 5b969127c303..8b85dd9555e8 100644 --- a/hw/ppc/pnv_psi.c +++ b/hw/ppc/pnv_psi.c @@ -22,6 +22,7 @@ #include "target/ppc/cpu.h" #include "qemu/log.h" #include "qapi/error.h" +#include "monitor/monitor.h" #include "exec/address-spaces.h" @@ -114,12 +115,14 @@ #define PSIHB_BAR_MASK 0x0003fffffff00000ull #define PSIHB_FSPBAR_MASK 0x0003ffff00000000ull +#define PSIHB_REG(addr) (((addr) >> 3) + PSIHB_XSCOM_BAR) + static void pnv_psi_set_bar(PnvPsi *psi, uint64_t bar) { MemoryRegion *sysmem = get_system_memory(); uint64_t old = psi->regs[PSIHB_XSCOM_BAR]; - psi->regs[PSIHB_XSCOM_BAR] = bar & (PSIHB_BAR_MASK | PSIHB_BAR_EN); + psi->regs[PSIHB_XSCOM_BAR] = bar; /* Update MR, always remove it first */ if (old & PSIHB_BAR_EN) { @@ -128,7 +131,7 @@ static void pnv_psi_set_bar(PnvPsi *psi, uint64_t bar) /* Then add it back if needed */ if (bar & PSIHB_BAR_EN) { - uint64_t addr = bar & PSIHB_BAR_MASK; + uint64_t addr = bar & ~PSIHB_BAR_EN; memory_region_add_subregion(sysmem, addr, &psi->regs_mr); } } @@ -205,7 +208,12 @@ static const uint64_t stat_bits[] = { [PSIHB_IRQ_EXTERNAL] = PSIHB_IRQ_STAT_EXT, }; -void pnv_psi_irq_set(PnvPsi *psi, PnvPsiIrq irq, bool state) +void pnv_psi_irq_set(PnvPsi *psi, int irq, bool state) +{ + PNV_PSI_GET_CLASS(psi)->irq_set(psi, irq, state); +} + +static void pnv_psi_power8_irq_set(PnvPsi *psi, int irq, bool state) { ICSState *ics = &psi->ics; uint32_t xivr_reg; @@ -324,7 +332,7 @@ static uint64_t pnv_psi_reg_read(PnvPsi *psi, uint32_t offset, bool mmio) val = psi->regs[offset]; break; default: - qemu_log_mask(LOG_UNIMP, "PSI: read at Ox%" PRIx32 "\n", offset); + qemu_log_mask(LOG_UNIMP, "PSI: read at 0x%" PRIx32 "\n", offset); } return val; } @@ -383,7 +391,7 @@ static void pnv_psi_reg_write(PnvPsi *psi, uint32_t offset, uint64_t val, pnv_psi_set_irsn(psi, val); break; default: - qemu_log_mask(LOG_UNIMP, "PSI: write at Ox%" PRIx32 "\n", offset); + qemu_log_mask(LOG_UNIMP, "PSI: write at 0x%" PRIx32 "\n", offset); } } @@ -393,13 +401,13 @@ static void pnv_psi_reg_write(PnvPsi *psi, uint32_t offset, uint64_t val, */ static uint64_t pnv_psi_mmio_read(void *opaque, hwaddr addr, unsigned size) { - return pnv_psi_reg_read(opaque, (addr >> 3) + PSIHB_XSCOM_BAR, true); + return pnv_psi_reg_read(opaque, PSIHB_REG(addr), true); } static void pnv_psi_mmio_write(void *opaque, hwaddr addr, uint64_t val, unsigned size) { - pnv_psi_reg_write(opaque, (addr >> 3) + PSIHB_XSCOM_BAR, val, true); + pnv_psi_reg_write(opaque, PSIHB_REG(addr), val, true); } static const MemoryRegionOps psi_mmio_ops = { @@ -441,7 +449,7 @@ static const MemoryRegionOps pnv_psi_xscom_ops = { } }; -static void pnv_psi_init(Object *obj) +static void pnv_psi_power8_instance_init(Object *obj) { PnvPsi *psi = PNV_PSI(obj); @@ -458,7 +466,7 @@ static const uint8_t irq_to_xivr[] = { PSIHB_XSCOM_XIVR_EXT, }; -static void pnv_psi_realize(DeviceState *dev, Error **errp) +static void pnv_psi_power8_realize(DeviceState *dev, Error **errp) { PnvPsi *psi = PNV_PSI(dev); ICSState *ics = &psi->ics; @@ -510,28 +518,34 @@ static void pnv_psi_realize(DeviceState *dev, Error **errp) } } +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 int pnv_psi_dt_xscom(PnvXScomInterface *dev, void *fdt, int xscom_offset) { - const char compat[] = "ibm,power8-psihb-x\0ibm,psihb-x"; + PnvPsiClass *ppc = PNV_PSI_GET_CLASS(dev); char *name; int offset; - uint32_t lpc_pcba = PNV_XSCOM_PSIHB_BASE; uint32_t reg[] = { - cpu_to_be32(lpc_pcba), - cpu_to_be32(PNV_XSCOM_PSIHB_SIZE) + cpu_to_be32(ppc->xscom_pcba), + cpu_to_be32(ppc->xscom_size) }; - name = g_strdup_printf("address@hidden", lpc_pcba); + name = g_strdup_printf("address@hidden", ppc->xscom_pcba); offset = fdt_add_subnode(fdt, xscom_offset, name); _FDT(offset); g_free(name); - _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))); - _FDT((fdt_setprop(fdt, offset, "compatible", compat, - sizeof(compat)))); + _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_POWER9) { + _FDT(fdt_setprop(fdt, offset, "compatible", compat_p9, + sizeof(compat_p9))); + } else { + _FDT(fdt_setprop(fdt, offset, "compatible", compat_p8, + sizeof(compat_p8))); + } return 0; } @@ -541,6 +555,324 @@ static Property pnv_psi_properties[] = { DEFINE_PROP_END_OF_LIST(), }; +static void pnv_psi_power8_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PnvPsiClass *ppc = PNV_PSI_CLASS(klass); + + dc->desc = "PowerNV PSI Controller POWER8"; + dc->realize = pnv_psi_power8_realize; + + ppc->chip_type = PNV_CHIP_POWER8; + ppc->xscom_pcba = PNV_XSCOM_PSIHB_BASE; + ppc->xscom_size = PNV_XSCOM_PSIHB_SIZE; + ppc->irq_set = pnv_psi_power8_irq_set; +} + +static const TypeInfo pnv_psi_power8_info = { + .name = TYPE_PNV_PSI_POWER8, + .parent = TYPE_PNV_PSI, + .instance_init = pnv_psi_power8_instance_init, + .class_init = pnv_psi_power8_class_init, +}; + +/* Common registers */ + +#define PSIHB9_CR 0x20 +#define PSIHB9_SEMR 0x28 + +/* P9 registers */ + +#define PSIHB9_INTERRUPT_CONTROL 0x58 +#define PSIHB9_IRQ_METHOD PPC_BIT(0) +#define PSIHB9_IRQ_RESET PPC_BIT(1) +#define PSIHB9_ESB_CI_BASE 0x60 +#define PSIHB9_ESB_CI_VALID 1 +#define PSIHB9_ESB_NOTIF_ADDR 0x68 +#define PSIHB9_ESB_NOTIF_VALID 1 +#define PSIHB9_IVT_OFFSET 0x70 +#define PSIHB9_IVT_OFF_SHIFT 32 + +#define PSIHB9_IRQ_LEVEL 0x78 /* assertion */ +#define PSIHB9_IRQ_LEVEL_PSI PPC_BIT(0) +#define PSIHB9_IRQ_LEVEL_OCC PPC_BIT(1) +#define PSIHB9_IRQ_LEVEL_FSI PPC_BIT(2) +#define PSIHB9_IRQ_LEVEL_LPCHC PPC_BIT(3) +#define PSIHB9_IRQ_LEVEL_LOCAL_ERR PPC_BIT(4) +#define PSIHB9_IRQ_LEVEL_GLOBAL_ERR PPC_BIT(5) +#define PSIHB9_IRQ_LEVEL_TPM PPC_BIT(6) +#define PSIHB9_IRQ_LEVEL_LPC_SIRQ1 PPC_BIT(7) +#define PSIHB9_IRQ_LEVEL_LPC_SIRQ2 PPC_BIT(8) +#define PSIHB9_IRQ_LEVEL_LPC_SIRQ3 PPC_BIT(9) +#define PSIHB9_IRQ_LEVEL_LPC_SIRQ4 PPC_BIT(10) +#define PSIHB9_IRQ_LEVEL_SBE_I2C PPC_BIT(11) +#define PSIHB9_IRQ_LEVEL_DIO PPC_BIT(12) +#define PSIHB9_IRQ_LEVEL_PSU PPC_BIT(13) +#define PSIHB9_IRQ_LEVEL_I2C_C PPC_BIT(14) +#define PSIHB9_IRQ_LEVEL_I2C_D PPC_BIT(15) +#define PSIHB9_IRQ_LEVEL_I2C_E PPC_BIT(16) +#define PSIHB9_IRQ_LEVEL_SBE PPC_BIT(19) + +#define PSIHB9_IRQ_STAT 0x80 /* P bit */ +#define PSIHB9_IRQ_STAT_PSI PPC_BIT(0) +#define PSIHB9_IRQ_STAT_OCC PPC_BIT(1) +#define PSIHB9_IRQ_STAT_FSI PPC_BIT(2) +#define PSIHB9_IRQ_STAT_LPCHC PPC_BIT(3) +#define PSIHB9_IRQ_STAT_LOCAL_ERR PPC_BIT(4) +#define PSIHB9_IRQ_STAT_GLOBAL_ERR PPC_BIT(5) +#define PSIHB9_IRQ_STAT_TPM PPC_BIT(6) +#define PSIHB9_IRQ_STAT_LPC_SIRQ1 PPC_BIT(7) +#define PSIHB9_IRQ_STAT_LPC_SIRQ2 PPC_BIT(8) +#define PSIHB9_IRQ_STAT_LPC_SIRQ3 PPC_BIT(9) +#define PSIHB9_IRQ_STAT_LPC_SIRQ4 PPC_BIT(10) +#define PSIHB9_IRQ_STAT_SBE_I2C PPC_BIT(11) +#define PSIHB9_IRQ_STAT_DIO PPC_BIT(12) +#define PSIHB9_IRQ_STAT_PSU PPC_BIT(13) + +static void pnv_psi_notify(XiveFabric *xf, uint32_t srcno) +{ + PnvPsi *psi = PNV_PSI(xf); + uint64_t notif_port = psi->regs[PSIHB_REG(PSIHB9_ESB_NOTIF_ADDR)]; + bool valid = notif_port & PSIHB9_ESB_NOTIF_VALID; + uint64_t notify_addr = notif_port & ~PSIHB9_ESB_NOTIF_VALID; + + uint32_t offset = + (psi->regs[PSIHB_REG(PSIHB9_IVT_OFFSET)] >> PSIHB9_IVT_OFF_SHIFT); + uint64_t lisn = cpu_to_be64(offset + srcno); + + if (valid) { + cpu_physical_memory_write(notify_addr, &lisn, sizeof(lisn)); + } +} + +/* + * TODO : move to parent class + */ +static void pnv_psi_reset(DeviceState *dev) +{ + PnvPsi *psi = PNV_PSI(dev); + + memset(psi->regs, 0x0, sizeof(psi->regs)); + + psi->regs[PSIHB_XSCOM_BAR] = psi->bar | PSIHB_BAR_EN; +} + +static uint64_t pnv_psi_p9_mmio_read(void *opaque, hwaddr addr, unsigned size) +{ + PnvPsi *psi = PNV_PSI(opaque); + uint32_t reg = PSIHB_REG(addr); + uint64_t val = -1; + + switch (addr) { + case PSIHB9_CR: + case PSIHB9_SEMR: + /* FSP stuff */ + case PSIHB9_INTERRUPT_CONTROL: + case PSIHB9_ESB_CI_BASE: + case PSIHB9_ESB_NOTIF_ADDR: + case PSIHB9_IVT_OFFSET: + val = psi->regs[reg]; + break; + default: + qemu_log_mask(LOG_GUEST_ERROR, "PSI: read at 0x%" PRIx64 "\n", addr); + } + + return val; +} + +static void pnv_psi_p9_mmio_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + PnvPsi *psi = PNV_PSI(opaque); + uint32_t reg = PSIHB_REG(addr); + MemoryRegion *sysmem = get_system_memory(); + + switch (addr) { + case PSIHB9_CR: + case PSIHB9_SEMR: + /* FSP stuff */ + break; + case PSIHB9_INTERRUPT_CONTROL: + if (val & PSIHB9_IRQ_RESET) { + device_reset(DEVICE(&psi->source)); + } + psi->regs[reg] = val; + break; + + case PSIHB9_ESB_CI_BASE: + if (!(val & PSIHB9_ESB_CI_VALID)) { + if (psi->regs[reg] & PSIHB9_ESB_CI_VALID) { + memory_region_del_subregion(sysmem, &psi->source.esb_mmio); + } + } else { + if (!(psi->regs[reg] & PSIHB9_ESB_CI_VALID)) { + memory_region_add_subregion(sysmem, + val & ~PSIHB9_ESB_CI_VALID, + &psi->source.esb_mmio); + } + } + psi->regs[reg] = val; + break; + + case PSIHB9_ESB_NOTIF_ADDR: + psi->regs[reg] = val; + break; + case PSIHB9_IVT_OFFSET: + psi->regs[reg] = val; + break; + default: + qemu_log_mask(LOG_GUEST_ERROR, "PSI: write at 0x%" PRIx64 "\n", addr); + } +} + +static const MemoryRegionOps pnv_psi_p9_mmio_ops = { + .read = pnv_psi_p9_mmio_read, + .write = pnv_psi_p9_mmio_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + }, +}; + +static uint64_t pnv_psi_p9_xscom_read(void *opaque, hwaddr addr, unsigned size) +{ + /* No read are expected */ + qemu_log_mask(LOG_GUEST_ERROR, "PSI: xscom read at 0x%" PRIx64 "\n", addr); + return -1; +} + +static void pnv_psi_p9_xscom_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + PnvPsi *psi = PNV_PSI(opaque); + + /* XSCOM is only used to set the PSIHB MMIO region */ + switch (addr >> 3) { + case PSIHB_XSCOM_BAR: + pnv_psi_set_bar(psi, val); + break; + default: + qemu_log_mask(LOG_GUEST_ERROR, "PSI: xscom write at 0x%" PRIx64 "\n", + addr); + } +} + +static const MemoryRegionOps pnv_psi_p9_xscom_ops = { + .read = pnv_psi_p9_xscom_read, + .write = pnv_psi_p9_xscom_write, + .endianness = DEVICE_BIG_ENDIAN, + .valid = { + .min_access_size = 8, + .max_access_size = 8, + }, + .impl = { + .min_access_size = 8, + .max_access_size = 8, + } +}; + +static void pnv_psi_power9_irq_set(PnvPsi *psi, int irq, bool state) +{ + uint32_t irq_method = psi->regs[PSIHB_REG(PSIHB9_INTERRUPT_CONTROL)]; + + if (irq > PSIHB9_NUM_IRQS) { + qemu_log_mask(LOG_GUEST_ERROR, "PSI: Unsupported irq %d\n", irq); + return; + } + + if (irq_method & PSIHB9_IRQ_METHOD) { + qemu_log_mask(LOG_GUEST_ERROR, "PSI: LSI IRQ method no supported\n"); + return; + } + + /* Update LSI levels */ + if (state) { + psi->regs[PSIHB_REG(PSIHB9_IRQ_LEVEL)] |= PPC_BIT(irq); + } else { + psi->regs[PSIHB_REG(PSIHB9_IRQ_LEVEL)] &= ~PPC_BIT(irq); + } + + qemu_set_irq(xive_source_qirq(&psi->source, irq), state); +} + +static void pnv_psi_power9_instance_init(Object *obj) +{ + PnvPsi *psi = PNV_PSI(obj); + + object_initialize(&psi->source, sizeof(psi->source), TYPE_XIVE_SOURCE); + object_property_add_child(obj, "source", OBJECT(&psi->source), NULL); +} + +static void pnv_psi_power9_realize(DeviceState *dev, Error **errp) +{ + PnvPsi *psi = PNV_PSI(dev); + XiveSource *xsrc = &psi->source; + Error *local_err = NULL; + int i; + + /* This is the only device with 4k ESB pages */ + object_property_set_int(OBJECT(xsrc), XIVE_ESB_4K, "shift", + &error_fatal); + object_property_set_int(OBJECT(xsrc), PSIHB9_NUM_IRQS, "nr-irqs", + &error_fatal); + object_property_add_const_link(OBJECT(xsrc), "xive", OBJECT(psi), + &error_fatal); + object_property_set_bool(OBJECT(xsrc), true, "realized", &local_err); + if (local_err) { + error_propagate(errp, local_err); + return; + } + qdev_set_parent_bus(DEVICE(xsrc), sysbus_get_default()); + + for (i = 0; i < xsrc->nr_irqs; i++) { + xive_source_irq_set(xsrc, i, true); + } + + /* XSCOM region for PSI registers */ + pnv_xscom_region_init(&psi->xscom_regs, OBJECT(dev), &pnv_psi_p9_xscom_ops, + psi, "xscom-psi", PNV9_XSCOM_PSIHB_SIZE); + + /* Initialize MMIO region */ + memory_region_init_io(&psi->regs_mr, OBJECT(dev), &pnv_psi_p9_mmio_ops, psi, + "psihb", PNV9_PSIHB_SIZE); + + /* Default BAR for MMIO region */ + pnv_psi_set_bar(psi, psi->bar | PSIHB_BAR_EN); +} + +static void pnv_psi_power9_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + PnvPsiClass *ppc = PNV_PSI_CLASS(klass); + XiveFabricClass *xfc = XIVE_FABRIC_CLASS(klass); + + dc->desc = "PowerNV PSI Controller POWER9"; + dc->realize = pnv_psi_power9_realize; + + ppc->chip_type = PNV_CHIP_POWER9; + ppc->xscom_pcba = PNV9_XSCOM_PSIHB_BASE; + ppc->xscom_size = PNV9_XSCOM_PSIHB_SIZE; + ppc->irq_set = pnv_psi_power9_irq_set; + + xfc->notify = pnv_psi_notify; +} + +static const TypeInfo pnv_psi_power9_info = { + .name = TYPE_PNV_PSI_POWER9, + .parent = TYPE_PNV_PSI, + .instance_init = pnv_psi_power9_instance_init, + .class_init = pnv_psi_power9_class_init, + .interfaces = (InterfaceInfo[]) { + { TYPE_XIVE_FABRIC }, + { }, + }, +}; + static void pnv_psi_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); @@ -548,16 +880,18 @@ static void pnv_psi_class_init(ObjectClass *klass, void *data) xdc->dt_xscom = pnv_psi_dt_xscom; - dc->realize = pnv_psi_realize; + dc->desc = "PowerNV PSI Controller"; dc->props = pnv_psi_properties; + dc->reset = pnv_psi_reset; } static const TypeInfo pnv_psi_info = { .name = TYPE_PNV_PSI, .parent = TYPE_SYS_BUS_DEVICE, .instance_size = sizeof(PnvPsi), - .instance_init = pnv_psi_init, .class_init = pnv_psi_class_init, + .class_size = sizeof(PnvPsiClass), + .abstract = true, .interfaces = (InterfaceInfo[]) { { TYPE_PNV_XSCOM_INTERFACE }, { } @@ -567,6 +901,18 @@ static const TypeInfo pnv_psi_info = { static void pnv_psi_register_types(void) { type_register_static(&pnv_psi_info); + type_register_static(&pnv_psi_power8_info); + type_register_static(&pnv_psi_power9_info); } type_init(pnv_psi_register_types) + +void pnv_psi_pic_print_info(PnvPsi *psi, Monitor *mon) +{ + uint32_t offset = + (psi->regs[PSIHB_REG(PSIHB9_IVT_OFFSET)] >> PSIHB9_IVT_OFF_SHIFT); + + monitor_printf(mon, "PSIHB Source %08x .. %08x\n", + offset, offset + psi->source.nr_irqs - 1); + xive_source_pic_print_info(&psi->source, offset, mon); +} -- 2.17.2