hw/spapr_pci.h

   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
  37 typedef 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
  80 static 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
  85 PCIHostState *spapr_create_phb(sPAPREnvironment *spapr, int index,
  86                                const char *busname);
  87
  88 int spapr_populate_pci_dt(sPAPRPHBState *phb,
  89                           uint32_t xics_phandle,
  90                           void *fdt);
  91
  92 void spapr_pci_rtas_init(void);
  93
  94 #endif /* __HW_SPAPR_PCI_H__ */