/* * QEMU SPAPR PCI BUS definitions * * Copyright (c) 2011 Alexey Kardashevskiy * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see . */ #ifndef PCI_HOST_SPAPR_H #define PCI_HOST_SPAPR_H #include "hw/ppc/spapr.h" #include "hw/pci/pci.h" #include "hw/pci/pci_host.h" #include "hw/ppc/xics.h" #define TYPE_SPAPR_PCI_HOST_BRIDGE "spapr-pci-host-bridge" #define SPAPR_PCI_HOST_BRIDGE(obj) \ OBJECT_CHECK(SpaprPhbState, (obj), TYPE_SPAPR_PCI_HOST_BRIDGE) #define SPAPR_PCI_DMA_MAX_WINDOWS 2 typedef struct SpaprPhbState SpaprPhbState; typedef struct SpaprPciMsi { uint32_t first_irq; uint32_t num; } SpaprPciMsi; typedef struct SpaprPciMsiMig { uint32_t key; SpaprPciMsi value; } SpaprPciMsiMig; typedef struct SpaprPciLsi { uint32_t irq; } SpaprPciLsi; typedef struct SpaprPhbPciNvGpuConfig SpaprPhbPciNvGpuConfig; struct SpaprPhbState { PCIHostState parent_obj; uint32_t index; uint64_t buid; char *dtbusname; bool dr_enabled; MemoryRegion memspace, iospace; hwaddr mem_win_addr, mem_win_size, mem64_win_addr, mem64_win_size; uint64_t mem64_win_pciaddr; hwaddr io_win_addr, io_win_size; MemoryRegion mem32window, mem64window, iowindow, msiwindow; uint32_t dma_liobn[SPAPR_PCI_DMA_MAX_WINDOWS]; hwaddr dma_win_addr, dma_win_size; AddressSpace iommu_as; MemoryRegion iommu_root; SpaprPciLsi lsi_table[PCI_NUM_PINS]; GHashTable *msi; /* Temporary cache for migration purposes */ int32_t msi_devs_num; SpaprPciMsiMig *msi_devs; QLIST_ENTRY(SpaprPhbState) list; bool ddw_enabled; uint64_t page_size_mask; uint64_t dma64_win_addr; uint32_t numa_node; bool pcie_ecs; /* Allow access to PCIe extended config space? */ /* Fields for migration compatibility hacks */ bool pre_2_8_migration; uint32_t mig_liobn; hwaddr mig_mem_win_addr, mig_mem_win_size; hwaddr mig_io_win_addr, mig_io_win_size; hwaddr nv2_gpa_win_addr; hwaddr nv2_atsd_win_addr; SpaprPhbPciNvGpuConfig *nvgpus; }; #define SPAPR_PCI_MEM_WIN_BUS_OFFSET 0x80000000ULL #define SPAPR_PCI_MEM32_WIN_SIZE \ ((1ULL << 32) - SPAPR_PCI_MEM_WIN_BUS_OFFSET) #define SPAPR_PCI_MEM64_WIN_SIZE 0x10000000000ULL /* 1 TiB */ /* All PCI outbound windows will be within this range */ #define SPAPR_PCI_BASE (1ULL << 45) /* 32 TiB */ #define SPAPR_PCI_LIMIT (1ULL << 46) /* 64 TiB */ #define SPAPR_MAX_PHBS ((SPAPR_PCI_LIMIT - SPAPR_PCI_BASE) / \ SPAPR_PCI_MEM64_WIN_SIZE - 1) #define SPAPR_PCI_IO_WIN_SIZE 0x10000 #define SPAPR_PCI_MSI_WINDOW 0x40000000000ULL #define SPAPR_PCI_NV2RAM64_WIN_BASE SPAPR_PCI_LIMIT #define SPAPR_PCI_NV2RAM64_WIN_SIZE (2 * TiB) /* For up to 6 GPUs 256GB each */ /* Max number of these GPUsper a physical box */ #define NVGPU_MAX_NUM 6 /* Max number of NVLinks per GPU in any physical box */ #define NVGPU_MAX_LINKS 3 /* * GPU RAM starts at 64TiB so huge DMA window to cover it all ends at 128TiB * which is enough. We do not need DMA for ATSD so we put them at 128TiB. */ #define SPAPR_PCI_NV2ATSD_WIN_BASE (128 * TiB) #define SPAPR_PCI_NV2ATSD_WIN_SIZE (NVGPU_MAX_NUM * NVGPU_MAX_LINKS * \ 64 * KiB) int spapr_dt_phb(SpaprPhbState *phb, uint32_t intc_phandle, void *fdt, uint32_t nr_msis, int *node_offset); void spapr_pci_rtas_init(void); SpaprPhbState *spapr_pci_find_phb(SpaprMachineState *spapr, uint64_t buid); PCIDevice *spapr_pci_find_dev(SpaprMachineState *spapr, uint64_t buid, uint32_t config_addr); /* DRC callbacks */ void spapr_phb_remove_pci_device_cb(DeviceState *dev); int spapr_pci_dt_populate(SpaprDrc *drc, SpaprMachineState *spapr, void *fdt, int *fdt_start_offset, Error **errp); /* VFIO EEH hooks */ #ifdef CONFIG_LINUX bool spapr_phb_eeh_available(SpaprPhbState *sphb); int spapr_phb_vfio_eeh_set_option(SpaprPhbState *sphb, unsigned int addr, int option); int spapr_phb_vfio_eeh_get_state(SpaprPhbState *sphb, int *state); int spapr_phb_vfio_eeh_reset(SpaprPhbState *sphb, int option); int spapr_phb_vfio_eeh_configure(SpaprPhbState *sphb); void spapr_phb_vfio_reset(DeviceState *qdev); void spapr_phb_nvgpu_setup(SpaprPhbState *sphb, Error **errp); void spapr_phb_nvgpu_free(SpaprPhbState *sphb); void spapr_phb_nvgpu_populate_dt(SpaprPhbState *sphb, void *fdt, int bus_off, Error **errp); void spapr_phb_nvgpu_ram_populate_dt(SpaprPhbState *sphb, void *fdt); void spapr_phb_nvgpu_populate_pcidev_dt(PCIDevice *dev, void *fdt, int offset, SpaprPhbState *sphb); #else static inline bool spapr_phb_eeh_available(SpaprPhbState *sphb) { return false; } static inline int spapr_phb_vfio_eeh_set_option(SpaprPhbState *sphb, unsigned int addr, int option) { return RTAS_OUT_HW_ERROR; } static inline int spapr_phb_vfio_eeh_get_state(SpaprPhbState *sphb, int *state) { return RTAS_OUT_HW_ERROR; } static inline int spapr_phb_vfio_eeh_reset(SpaprPhbState *sphb, int option) { return RTAS_OUT_HW_ERROR; } static inline int spapr_phb_vfio_eeh_configure(SpaprPhbState *sphb) { return RTAS_OUT_HW_ERROR; } static inline void spapr_phb_vfio_reset(DeviceState *qdev) { } static inline void spapr_phb_nvgpu_setup(SpaprPhbState *sphb, Error **errp) { } static inline void spapr_phb_nvgpu_free(SpaprPhbState *sphb) { } static inline void spapr_phb_nvgpu_populate_dt(SpaprPhbState *sphb, void *fdt, int bus_off, Error **errp) { } static inline void spapr_phb_nvgpu_ram_populate_dt(SpaprPhbState *sphb, void *fdt) { } static inline void spapr_phb_nvgpu_populate_pcidev_dt(PCIDevice *dev, void *fdt, int offset, SpaprPhbState *sphb) { } #endif void spapr_phb_dma_reset(SpaprPhbState *sphb); static inline unsigned spapr_phb_windows_supported(SpaprPhbState *sphb) { return sphb->ddw_enabled ? SPAPR_PCI_DMA_MAX_WINDOWS : 1; } #endif /* PCI_HOST_SPAPR_H */