LXR qemu/hw/spapr

   1/*
   2 * QEMU SPAPR PCI BUS definitions
   3 *
   4 * Copyright (c) 2011 Alexey Kardashevskiy <aik@au1.ibm.com>
   5 *
   6 * This library is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU Lesser General Public
   8 * License as published by the Free Software Foundation; either
   9 * version 2 of the License, or (at your option) any later version.
  10 *
  11 * This library is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 * Lesser General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU Lesser General Public
  17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18 */
  19#if !defined(__HW_SPAPR_H__)
  20#error Please include spapr.h before this file!
  21#endif
  22
  23#if !defined(__HW_SPAPR_PCI_H__)
  24#define __HW_SPAPR_PCI_H__
  25
  26#include "hw/pci.h"
  27#include "hw/pci_host.h"
  28#include "hw/xics.h"
  29
  30#define SPAPR_MSIX_MAX_DEVS 32
  31
  32#define TYPE_SPAPR_PCI_HOST_BRIDGE "spapr-pci-host-bridge"
  33
  34#define SPAPR_PCI_HOST_BRIDGE(obj) \
  35    OBJECT_CHECK(sPAPRPHBState, (obj), TYPE_SPAPR_PCI_HOST_BRIDGE)
  36
  37typedef struct sPAPRPHBState {
  38    PCIHostState parent_obj;
  39
  40    uint64_t buid;
  41    char *busname;
  42    char *dtbusname;
  43
  44    MemoryRegion memspace, iospace;
  45    hwaddr mem_win_addr, mem_win_size, io_win_addr, io_win_size;
  46    hwaddr msi_win_addr;
  47    MemoryRegion memwindow, iowindow, msiwindow;
  48
  49    uint32_t dma_liobn;
  50    uint64_t dma_window_start;
  51    uint64_t dma_window_size;
  52    DMAContext *dma;
  53
  54    struct {
  55        uint32_t irq;
  56    } lsi_table[PCI_NUM_PINS];
  57
  58    struct {
  59        uint32_t config_addr;
  60        uint32_t irq;
  61        int nvec;
  62    } msi_table[SPAPR_MSIX_MAX_DEVS];
  63
  64    QLIST_ENTRY(sPAPRPHBState) list;
  65} sPAPRPHBState;
  66
  67static inline qemu_irq spapr_phb_lsi_qirq(struct sPAPRPHBState *phb, int pin)
  68{
  69    return xics_get_qirq(spapr->icp, phb->lsi_table[pin].irq);
  70}
  71
  72#define SPAPR_PCI_MEM_WIN_BUS_OFFSET 0x80000000ULL
  73#define SPAPR_PCI_IO_WIN_SIZE        0x10000
  74
  75void spapr_create_phb(sPAPREnvironment *spapr,
  76                      const char *busname, uint64_t buid,
  77                      uint64_t mem_win_addr, uint64_t mem_win_size,
  78                      uint64_t io_win_addr, uint64_t msi_win_addr);
  79
  80int spapr_populate_pci_dt(sPAPRPHBState *phb,
  81                          uint32_t xics_phandle,
  82                          void *fdt);
  83
  84void spapr_pci_rtas_init(void);
  85
  86#endif /* __HW_SPAPR_PCI_H__ */
  87