#ifndef _HW_SPAPR_VIO_H #define _HW_SPAPR_VIO_H /* * QEMU sPAPR VIO bus definitions * * Copyright (c) 2010 David Gibson, IBM Corporation <david@gibson.dropbear.id.au> * Based on the s390 virtio bus definitions: * Copyright (c) 2009 Alexander Graf <agraf@suse.de> * * 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/>. */ #define SPAPR_VIO_TCE_PAGE_SHIFT 12 #define SPAPR_VIO_TCE_PAGE_SIZE (1ULL << SPAPR_VIO_TCE_PAGE_SHIFT) #define SPAPR_VIO_TCE_PAGE_MASK (SPAPR_VIO_TCE_PAGE_SIZE - 1) enum VIOsPAPR_TCEAccess { SPAPR_TCE_FAULT = 0, SPAPR_TCE_RO = 1, SPAPR_TCE_WO = 2, SPAPR_TCE_RW = 3, }; #define SPAPR_VTY_BASE_ADDRESS 0x30000000 struct VIOsPAPRDevice; typedef struct VIOsPAPR_RTCE { uint64_t tce; } VIOsPAPR_RTCE; typedef struct VIOsPAPR_CRQ { uint64_t qladdr; uint32_t qsize; uint32_t qnext; int(*SendFunc)(struct VIOsPAPRDevice *vdev, uint8_t *crq); } VIOsPAPR_CRQ; typedef struct VIOsPAPRDevice { DeviceState qdev; uint32_t reg; uint32_t flags; #define VIO_PAPR_FLAG_DMA_BYPASS 0x1 qemu_irq qirq; uint32_t vio_irq_num; target_ulong signal_state; uint32_t rtce_window_size; VIOsPAPR_RTCE *rtce_table; VIOsPAPR_CRQ crq; } VIOsPAPRDevice; typedef struct VIOsPAPRBus { BusState bus; } VIOsPAPRBus; typedef struct { DeviceInfo qdev; const char *dt_name, *dt_type, *dt_compatible; target_ulong signal_mask; int (*init)(VIOsPAPRDevice *dev); void (*hcalls)(VIOsPAPRBus *bus); int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off); } VIOsPAPRDeviceInfo; extern VIOsPAPRBus *spapr_vio_bus_init(void); extern VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg); extern void spapr_vio_bus_register_withprop(VIOsPAPRDeviceInfo *info); extern int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt); extern int spapr_vio_signal(VIOsPAPRDevice *dev, target_ulong mode); int spapr_vio_check_tces(VIOsPAPRDevice *dev, target_ulong ioba, target_ulong len, enum VIOsPAPR_TCEAccess access); int spapr_tce_dma_read(VIOsPAPRDevice *dev, uint64_t taddr, void *buf, uint32_t size); int spapr_tce_dma_write(VIOsPAPRDevice *dev, uint64_t taddr, const void *buf, uint32_t size); int spapr_tce_dma_zero(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t size); void stb_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint8_t val); void sth_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint16_t val); void stw_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t val); void stq_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint64_t val); uint64_t ldq_tce(VIOsPAPRDevice *dev, uint64_t taddr); int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq); void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len); void spapr_vty_create(VIOsPAPRBus *bus, uint32_t reg, CharDriverState *chardev, qemu_irq qirq, uint32_t vio_irq_num); void spapr_vlan_create(VIOsPAPRBus *bus, uint32_t reg, NICInfo *nd, qemu_irq qirq, uint32_t vio_irq_num); void spapr_vscsi_create(VIOsPAPRBus *bus, uint32_t reg, qemu_irq qirq, uint32_t vio_irq_num); int spapr_tce_set_bypass(uint32_t unit, uint32_t enable); void spapr_vio_quiesce(void); #endif /* _HW_SPAPR_VIO_H */