diff options
Diffstat (limited to 'include/hw/pci-host/pnv_phb3.h')
-rw-r--r-- | include/hw/pci-host/pnv_phb3.h | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/include/hw/pci-host/pnv_phb3.h b/include/hw/pci-host/pnv_phb3.h new file mode 100644 index 000000000..e2a2e3624 --- /dev/null +++ b/include/hw/pci-host/pnv_phb3.h @@ -0,0 +1,167 @@ +/* + * QEMU PowerPC PowerNV (POWER8) PHB3 model + * + * Copyright (c) 2014-2020, IBM Corporation. + * + * This code is licensed under the GPL version 2 or later. See the + * COPYING file in the top-level directory. + */ + +#ifndef PCI_HOST_PNV_PHB3_H +#define PCI_HOST_PNV_PHB3_H + +#include "hw/pci/pcie_host.h" +#include "hw/pci/pcie_port.h" +#include "hw/ppc/xics.h" +#include "qom/object.h" + +typedef struct PnvPHB3 PnvPHB3; + +/* + * PHB3 XICS Source for MSIs + */ +#define TYPE_PHB3_MSI "phb3-msi" +typedef struct Phb3MsiState Phb3MsiState; +DECLARE_INSTANCE_CHECKER(Phb3MsiState, PHB3_MSI, + TYPE_PHB3_MSI) + +#define PHB3_MAX_MSI 2048 + +struct Phb3MsiState { + ICSState ics; + qemu_irq *qirqs; + + PnvPHB3 *phb; + uint64_t rba[PHB3_MAX_MSI / 64]; + uint32_t rba_sum; +}; + +void pnv_phb3_msi_update_config(Phb3MsiState *msis, uint32_t base, + uint32_t count); +void pnv_phb3_msi_send(Phb3MsiState *msis, uint64_t addr, uint16_t data, + int32_t dev_pe); +void pnv_phb3_msi_ffi(Phb3MsiState *msis, uint64_t val); +void pnv_phb3_msi_pic_print_info(Phb3MsiState *msis, Monitor *mon); + + +/* + * We have one such address space wrapper per possible device under + * the PHB since they need to be assigned statically at qemu device + * creation time. The relationship to a PE is done later dynamically. + * This means we can potentially create a lot of these guys. Q35 + * stores them as some kind of radix tree but we never really need to + * do fast lookups so instead we simply keep a QLIST of them for now, + * we can add the radix if needed later on. + * + * We do cache the PE number to speed things up a bit though. + */ +typedef struct PnvPhb3DMASpace { + PCIBus *bus; + uint8_t devfn; + int pe_num; /* Cached PE number */ +#define PHB_INVALID_PE (-1) + PnvPHB3 *phb; + AddressSpace dma_as; + IOMMUMemoryRegion dma_mr; + MemoryRegion msi32_mr; + MemoryRegion msi64_mr; + QLIST_ENTRY(PnvPhb3DMASpace) list; +} PnvPhb3DMASpace; + +/* + * PHB3 Power Bus Common Queue + */ +#define TYPE_PNV_PBCQ "pnv-pbcq" +OBJECT_DECLARE_SIMPLE_TYPE(PnvPBCQState, PNV_PBCQ) + +struct PnvPBCQState { + DeviceState parent; + + uint32_t nest_xbase; + uint32_t spci_xbase; + uint32_t pci_xbase; +#define PBCQ_NEST_REGS_COUNT 0x46 +#define PBCQ_PCI_REGS_COUNT 0x15 +#define PBCQ_SPCI_REGS_COUNT 0x5 + + uint64_t nest_regs[PBCQ_NEST_REGS_COUNT]; + uint64_t spci_regs[PBCQ_SPCI_REGS_COUNT]; + uint64_t pci_regs[PBCQ_PCI_REGS_COUNT]; + MemoryRegion mmbar0; + MemoryRegion mmbar1; + MemoryRegion phbbar; + uint64_t mmio0_base; + uint64_t mmio0_size; + uint64_t mmio1_base; + uint64_t mmio1_size; + PnvPHB3 *phb; + + MemoryRegion xscom_nest_regs; + MemoryRegion xscom_pci_regs; + MemoryRegion xscom_spci_regs; +}; + +/* + * PHB3 PCIe Root port + */ +#define TYPE_PNV_PHB3_ROOT_BUS "pnv-phb3-root-bus" + +#define TYPE_PNV_PHB3_ROOT_PORT "pnv-phb3-root-port" + +typedef struct PnvPHB3RootPort { + PCIESlot parent_obj; +} PnvPHB3RootPort; + +/* + * PHB3 PCIe Host Bridge for PowerNV machines (POWER8) + */ +#define TYPE_PNV_PHB3 "pnv-phb3" +OBJECT_DECLARE_SIMPLE_TYPE(PnvPHB3, PNV_PHB3) + +#define PNV_PHB3_NUM_M64 16 +#define PNV_PHB3_NUM_REGS (0x1000 >> 3) +#define PNV_PHB3_NUM_LSI 8 +#define PNV_PHB3_NUM_PE 256 + +#define PCI_MMIO_TOTAL_SIZE (0x1ull << 60) + +struct PnvPHB3 { + PCIExpressHost parent_obj; + + uint32_t chip_id; + uint32_t phb_id; + char bus_path[8]; + + uint64_t regs[PNV_PHB3_NUM_REGS]; + MemoryRegion mr_regs; + + MemoryRegion mr_m32; + MemoryRegion mr_m64[PNV_PHB3_NUM_M64]; + MemoryRegion pci_mmio; + MemoryRegion pci_io; + + uint64_t ioda_LIST[8]; + uint64_t ioda_LXIVT[8]; + uint64_t ioda_TVT[512]; + uint64_t ioda_M64BT[16]; + uint64_t ioda_MDT[256]; + uint64_t ioda_PEEV[4]; + + uint32_t total_irq; + ICSState lsis; + qemu_irq *qirqs; + Phb3MsiState msis; + + PnvPBCQState pbcq; + + PnvPHB3RootPort root; + + QLIST_HEAD(, PnvPhb3DMASpace) dma_spaces; +}; + +uint64_t pnv_phb3_reg_read(void *opaque, hwaddr off, unsigned size); +void pnv_phb3_reg_write(void *opaque, hwaddr off, uint64_t val, unsigned size); +void pnv_phb3_update_regions(PnvPHB3 *phb); +void pnv_phb3_remap_irqs(PnvPHB3 *phb); + +#endif /* PCI_HOST_PNV_PHB3_H */ |