Archipelago » qemu

/*

 * QEMU SPAPR PCI BUS definitions

 *

 * Copyright (c) 2011 Alexey Kardashevskiy <aik@au1.ibm.com>

 *

 * 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 <http://www.gnu.org/licenses/>.

 */

#if !defined(__HW_SPAPR_H__)

#error Please include spapr.h before this file!

#endif

#if !defined(__HW_SPAPR_PCI_H__)

#define __HW_SPAPR_PCI_H__

#include "hw/pci/pci.h"

#include "hw/pci/pci_host.h"

#include "hw/xics.h"

#define SPAPR_MSIX_MAX_DEVS 32

#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)

typedef struct sPAPRPHBState {

    PCIHostState parent_obj;

    uint64_t buid;

    char *busname;

    char *dtbusname;

    MemoryRegion memspace, iospace;

    hwaddr mem_win_addr, mem_win_size, io_win_addr, io_win_size;

    hwaddr msi_win_addr;

    MemoryRegion memwindow, iowindow, msiwindow;

    uint32_t dma_liobn;

    uint64_t dma_window_start;

    uint64_t dma_window_size;

    DMAContext *dma;

    struct {

        uint32_t irq;

    } lsi_table[PCI_NUM_PINS];

    struct {

        uint32_t config_addr;

        uint32_t irq;

        int nvec;

    } msi_table[SPAPR_MSIX_MAX_DEVS];

    QLIST_ENTRY(sPAPRPHBState) list;

} sPAPRPHBState;

static inline qemu_irq spapr_phb_lsi_qirq(struct sPAPRPHBState *phb, int pin)

{

    return xics_get_qirq(spapr->icp, phb->lsi_table[pin].irq);

}

#define SPAPR_PCI_MEM_WIN_BUS_OFFSET 0x80000000ULL

#define SPAPR_PCI_IO_WIN_SIZE        0x10000

void spapr_create_phb(sPAPREnvironment *spapr,

                      const char *busname, uint64_t buid,

                      uint64_t mem_win_addr, uint64_t mem_win_size,

                      uint64_t io_win_addr, uint64_t msi_win_addr);

int spapr_populate_pci_dt(sPAPRPHBState *phb,

                          uint32_t xics_phandle,

                          void *fdt);

void spapr_pci_rtas_init(void);

#endif /* __HW_SPAPR_PCI_H__ */