include/hw/pci-host/spapr.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/ppc/xics.h"
  29
  30 #define TYPE_SPAPR_PCI_HOST_BRIDGE "spapr-pci-host-bridge"
  31 #define TYPE_SPAPR_PCI_VFIO_HOST_BRIDGE "spapr-pci-vfio-host-bridge"
  32
  33 #define SPAPR_PCI_HOST_BRIDGE(obj) \
  34     OBJECT_CHECK(sPAPRPHBState, (obj), TYPE_SPAPR_PCI_HOST_BRIDGE)
  35
  36 #define SPAPR_PCI_VFIO_HOST_BRIDGE(obj) \
  37     OBJECT_CHECK(sPAPRPHBVFIOState, (obj), TYPE_SPAPR_PCI_VFIO_HOST_BRIDGE)
  38
  39 #define SPAPR_PCI_HOST_BRIDGE_CLASS(klass) \
  40      OBJECT_CLASS_CHECK(sPAPRPHBClass, (klass), TYPE_SPAPR_PCI_HOST_BRIDGE)
  41 #define SPAPR_PCI_HOST_BRIDGE_GET_CLASS(obj) \
  42      OBJECT_GET_CLASS(sPAPRPHBClass, (obj), TYPE_SPAPR_PCI_HOST_BRIDGE)
  43
  44 typedef struct sPAPRPHBClass sPAPRPHBClass;
  45 typedef struct sPAPRPHBState sPAPRPHBState;
  46 typedef struct sPAPRPHBVFIOState sPAPRPHBVFIOState;
  47
  48 struct sPAPRPHBClass {
  49     PCIHostBridgeClass parent_class;
  50
  51     void (*finish_realize)(sPAPRPHBState *sphb, Error **errp);
  52     int (*eeh_set_option)(sPAPRPHBState *sphb, unsigned int addr, int option);
  53     int (*eeh_get_state)(sPAPRPHBState *sphb, int *state);
  54     int (*eeh_reset)(sPAPRPHBState *sphb, int option);
  55     int (*eeh_configure)(sPAPRPHBState *sphb);
  56 };
  57
  58 typedef struct spapr_pci_msi {
  59     uint32_t first_irq;
  60     uint32_t num;
  61 } spapr_pci_msi;
  62
  63 typedef struct spapr_pci_msi_mig {
  64     uint32_t key;
  65     spapr_pci_msi value;
  66 } spapr_pci_msi_mig;
  67
  68 struct sPAPRPHBState {
  69     PCIHostState parent_obj;
  70
  71     uint32_t index;
  72     uint64_t buid;
  73     char *dtbusname;
  74     bool dr_enabled;
  75
  76     MemoryRegion memspace, iospace;
  77     hwaddr mem_win_addr, mem_win_size, io_win_addr, io_win_size;
  78     MemoryRegion memwindow, iowindow, msiwindow;
  79
  80     uint32_t dma_liobn;
  81     hwaddr dma_win_addr, dma_win_size;
  82     AddressSpace iommu_as;
  83     MemoryRegion iommu_root;
  84
  85     struct spapr_pci_lsi {
  86         uint32_t irq;
  87     } lsi_table[PCI_NUM_PINS];
  88
  89     GHashTable *msi;
  90     /* Temporary cache for migration purposes */
  91     int32_t msi_devs_num;
  92     spapr_pci_msi_mig *msi_devs;
  93
  94     QLIST_ENTRY(sPAPRPHBState) list;
  95 };
  96
  97 struct sPAPRPHBVFIOState {
  98     sPAPRPHBState phb;
  99
 100     int32_t iommugroupid;
 101 };
 102
 103 #define SPAPR_PCI_MAX_INDEX          255
 104
 105 #define SPAPR_PCI_BASE_BUID          0x800000020000000ULL
 106
 107 #define SPAPR_PCI_MEM_WIN_BUS_OFFSET 0x80000000ULL
 108
 109 #define SPAPR_PCI_WINDOW_BASE        0x10000000000ULL
 110 #define SPAPR_PCI_WINDOW_SPACING     0x1000000000ULL
 111 #define SPAPR_PCI_MMIO_WIN_OFF       0xA0000000
 112 #define SPAPR_PCI_MMIO_WIN_SIZE      (SPAPR_PCI_WINDOW_SPACING - \
 113                                      SPAPR_PCI_MEM_WIN_BUS_OFFSET)
 114 #define SPAPR_PCI_IO_WIN_OFF         0x80000000
 115 #define SPAPR_PCI_IO_WIN_SIZE        0x10000
 116
 117 #define SPAPR_PCI_MSI_WINDOW         0x40000000000ULL
 118
 119 static inline qemu_irq spapr_phb_lsi_qirq(struct sPAPRPHBState *phb, int pin)
 120 {
 121     sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
 122
 123     return xics_get_qirq(spapr->icp, phb->lsi_table[pin].irq);
 124 }
 125
 126 PCIHostState *spapr_create_phb(sPAPRMachineState *spapr, int index);
 127
 128 int spapr_populate_pci_dt(sPAPRPHBState *phb,
 129                           uint32_t xics_phandle,
 130                           void *fdt);
 131
 132 void spapr_pci_msi_init(sPAPRMachineState *spapr, hwaddr addr);
 133
 134 void spapr_pci_rtas_init(void);
 135
 136 sPAPRPHBState *spapr_pci_find_phb(sPAPRMachineState *spapr, uint64_t buid);
 137 PCIDevice *spapr_pci_find_dev(sPAPRMachineState *spapr, uint64_t buid,
 138                               uint32_t config_addr);
 139
 140 #endif /* __HW_SPAPR_PCI_H__ */