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/*
* 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/ppc/xics.h"
#define TYPE_SPAPR_PCI_HOST_BRIDGE "spapr-pci-host-bridge"
#define TYPE_SPAPR_PCI_VFIO_HOST_BRIDGE "spapr-pci-vfio-host-bridge"
#define SPAPR_PCI_HOST_BRIDGE(obj) \
OBJECT_CHECK(sPAPRPHBState, (obj), TYPE_SPAPR_PCI_HOST_BRIDGE)
#define SPAPR_PCI_VFIO_HOST_BRIDGE(obj) \
OBJECT_CHECK(sPAPRPHBVFIOState, (obj), TYPE_SPAPR_PCI_VFIO_HOST_BRIDGE)
#define SPAPR_PCI_HOST_BRIDGE_CLASS(klass) \
OBJECT_CLASS_CHECK(sPAPRPHBClass, (klass), TYPE_SPAPR_PCI_HOST_BRIDGE)
#define SPAPR_PCI_HOST_BRIDGE_GET_CLASS(obj) \
OBJECT_GET_CLASS(sPAPRPHBClass, (obj), TYPE_SPAPR_PCI_HOST_BRIDGE)
typedef struct sPAPRPHBClass sPAPRPHBClass;
typedef struct sPAPRPHBState sPAPRPHBState;
typedef struct sPAPRPHBVFIOState sPAPRPHBVFIOState;
struct sPAPRPHBClass {
PCIHostBridgeClass parent_class;
void (*finish_realize)(sPAPRPHBState *sphb, Error **errp);
};
typedef struct spapr_pci_msi {
uint32_t first_irq;
uint32_t num;
} spapr_pci_msi;
typedef struct spapr_pci_msi_mig {
uint32_t key;
spapr_pci_msi value;
} spapr_pci_msi_mig;
struct sPAPRPHBState {
PCIHostState parent_obj;
uint32_t index;
uint64_t buid;
char *dtbusname;
bool dr_enabled;
MemoryRegion memspace, iospace;
hwaddr mem_win_addr, mem_win_size, io_win_addr, io_win_size;
MemoryRegion memwindow, iowindow, msiwindow;
uint32_t dma_liobn;
hwaddr dma_win_addr, dma_win_size;
AddressSpace iommu_as;
MemoryRegion iommu_root;
struct spapr_pci_lsi {
uint32_t irq;
} lsi_table[PCI_NUM_PINS];
GHashTable *msi;
/* Temporary cache for migration purposes */
int32_t msi_devs_num;
spapr_pci_msi_mig *msi_devs;
QLIST_ENTRY(sPAPRPHBState) list;
};
struct sPAPRPHBVFIOState {
sPAPRPHBState phb;
int32_t iommugroupid;
};
#define SPAPR_PCI_MAX_INDEX 255
#define SPAPR_PCI_BASE_BUID 0x800000020000000ULL
#define SPAPR_PCI_MEM_WIN_BUS_OFFSET 0x80000000ULL
#define SPAPR_PCI_WINDOW_BASE 0x10000000000ULL
#define SPAPR_PCI_WINDOW_SPACING 0x1000000000ULL
#define SPAPR_PCI_MMIO_WIN_OFF 0xA0000000
#define SPAPR_PCI_MMIO_WIN_SIZE (SPAPR_PCI_WINDOW_SPACING - \
SPAPR_PCI_MEM_WIN_BUS_OFFSET)
#define SPAPR_PCI_IO_WIN_OFF 0x80000000
#define SPAPR_PCI_IO_WIN_SIZE 0x10000
#define SPAPR_PCI_MSI_WINDOW 0x40000000000ULL
static inline qemu_irq spapr_phb_lsi_qirq(struct sPAPRPHBState *phb, int pin)
{
sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
return xics_get_qirq(spapr->icp, phb->lsi_table[pin].irq);
}
PCIHostState *spapr_create_phb(sPAPRMachineState *spapr, int index);
int spapr_populate_pci_dt(sPAPRPHBState *phb,
uint32_t xics_phandle,
void *fdt);
void spapr_pci_msi_init(sPAPRMachineState *spapr, hwaddr addr);
void spapr_pci_rtas_init(void);
sPAPRPHBState *spapr_pci_find_phb(sPAPRMachineState *spapr, uint64_t buid);
PCIDevice *spapr_pci_find_dev(sPAPRMachineState *spapr, uint64_t buid,
uint32_t config_addr);
/* VFIO EEH hooks */
#ifdef CONFIG_LINUX
bool spapr_phb_eeh_available(sPAPRPHBState *sphb);
int spapr_phb_vfio_eeh_set_option(sPAPRPHBState *sphb,
unsigned int addr, int option);
int spapr_phb_vfio_eeh_get_state(sPAPRPHBState *sphb, int *state);
int spapr_phb_vfio_eeh_reset(sPAPRPHBState *sphb, int option);
int spapr_phb_vfio_eeh_configure(sPAPRPHBState *sphb);
void spapr_phb_vfio_reset(DeviceState *qdev);
#else
static inline bool spapr_phb_eeh_available(sPAPRPHBState *sphb)
{
return false;
}
static inline int spapr_phb_vfio_eeh_set_option(sPAPRPHBState *sphb,
unsigned int addr, int option)
{
return RTAS_OUT_HW_ERROR;
}
static inline int spapr_phb_vfio_eeh_get_state(sPAPRPHBState *sphb,
int *state)
{
return RTAS_OUT_HW_ERROR;
}
static inline int spapr_phb_vfio_eeh_reset(sPAPRPHBState *sphb, int option)
{
return RTAS_OUT_HW_ERROR;
}
static inline int spapr_phb_vfio_eeh_configure(sPAPRPHBState *sphb)
{
return RTAS_OUT_HW_ERROR;
}
static inline void spapr_phb_vfio_reset(DeviceState *qdev)
{
}
#endif
#endif /* __HW_SPAPR_PCI_H__ */
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