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/pci.h"
  27#include "hw/pci/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    int32_t index;
  41    uint64_t buid;
  42    char *busname;
  43    char *dtbusname;
  44
  45    MemoryRegion memspace, iospace;
  46    hwaddr mem_win_addr, mem_win_size, io_win_addr, io_win_size;
  47    hwaddr msi_win_addr;
  48    MemoryRegion memwindow, iowindow, msiwindow;
  49
  50    uint32_t dma_liobn;
  51    uint64_t dma_window_start;
  52    uint64_t dma_window_size;
  53    DMAContext *dma;
  54
  55    struct {
  56        uint32_t irq;
  57    } lsi_table[PCI_NUM_PINS];
  58
  59    struct {
  60        uint32_t config_addr;
  61        uint32_t irq;
  62        int nvec;
  63    } msi_table[SPAPR_MSIX_MAX_DEVS];
  64
  65    QLIST_ENTRY(sPAPRPHBState) list;
  66} sPAPRPHBState;
  67
  68#define SPAPR_PCI_BASE_BUID          0x800000020000000ULL
  69
  70#define SPAPR_PCI_WINDOW_BASE        0x10000000000ULL
  71#define SPAPR_PCI_WINDOW_SPACING     0x1000000000ULL
  72#define SPAPR_PCI_MMIO_WIN_OFF       0xA0000000
  73#define SPAPR_PCI_MMIO_WIN_SIZE      0x20000000
  74#define SPAPR_PCI_IO_WIN_OFF         0x80000000
  75#define SPAPR_PCI_IO_WIN_SIZE        0x10000
  76#define SPAPR_PCI_MSI_WIN_OFF        0x90000000
  77
  78#define SPAPR_PCI_MEM_WIN_BUS_OFFSET 0x80000000ULL
  79
  80static inline qemu_irq spapr_phb_lsi_qirq(struct sPAPRPHBState *phb, int pin)
  81{
  82    return xics_get_qirq(spapr->icp, phb->lsi_table[pin].irq);
  83}
  84
  85PCIHostState *spapr_create_phb(sPAPREnvironment *spapr, int index,
  86                               const char *busname);
  87
  88int spapr_populate_pci_dt(sPAPRPHBState *phb,
  89                          uint32_t xics_phandle,
  90                          void *fdt);
  91
  92void spapr_pci_rtas_init(void);
  93
  94#endif /* __HW_SPAPR_PCI_H__ */
  95