115 lines
3.9 KiB
C
115 lines
3.9 KiB
C
#ifndef _HW_SPAPR_VIO_H
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#define _HW_SPAPR_VIO_H
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/*
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* QEMU sPAPR VIO bus definitions
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*
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* Copyright (c) 2010 David Gibson, IBM Corporation <david@gibson.dropbear.id.au>
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* Based on the s390 virtio bus definitions:
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* Copyright (c) 2009 Alexander Graf <agraf@suse.de>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#define SPAPR_VIO_TCE_PAGE_SHIFT 12
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#define SPAPR_VIO_TCE_PAGE_SIZE (1ULL << SPAPR_VIO_TCE_PAGE_SHIFT)
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#define SPAPR_VIO_TCE_PAGE_MASK (SPAPR_VIO_TCE_PAGE_SIZE - 1)
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enum VIOsPAPR_TCEAccess {
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SPAPR_TCE_FAULT = 0,
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SPAPR_TCE_RO = 1,
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SPAPR_TCE_WO = 2,
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SPAPR_TCE_RW = 3,
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};
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#define SPAPR_VTY_BASE_ADDRESS 0x30000000
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struct VIOsPAPRDevice;
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typedef struct VIOsPAPR_RTCE {
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uint64_t tce;
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} VIOsPAPR_RTCE;
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typedef struct VIOsPAPR_CRQ {
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uint64_t qladdr;
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uint32_t qsize;
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uint32_t qnext;
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int(*SendFunc)(struct VIOsPAPRDevice *vdev, uint8_t *crq);
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} VIOsPAPR_CRQ;
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typedef struct VIOsPAPRDevice {
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DeviceState qdev;
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uint32_t reg;
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uint32_t flags;
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#define VIO_PAPR_FLAG_DMA_BYPASS 0x1
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qemu_irq qirq;
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uint32_t vio_irq_num;
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target_ulong signal_state;
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uint32_t rtce_window_size;
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VIOsPAPR_RTCE *rtce_table;
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VIOsPAPR_CRQ crq;
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} VIOsPAPRDevice;
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typedef struct VIOsPAPRBus {
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BusState bus;
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} VIOsPAPRBus;
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typedef struct {
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DeviceInfo qdev;
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const char *dt_name, *dt_type, *dt_compatible;
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target_ulong signal_mask;
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int (*init)(VIOsPAPRDevice *dev);
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void (*hcalls)(VIOsPAPRBus *bus);
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int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
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} VIOsPAPRDeviceInfo;
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extern VIOsPAPRBus *spapr_vio_bus_init(void);
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extern VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg);
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extern void spapr_vio_bus_register_withprop(VIOsPAPRDeviceInfo *info);
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extern int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt);
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extern int spapr_vio_signal(VIOsPAPRDevice *dev, target_ulong mode);
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int spapr_vio_check_tces(VIOsPAPRDevice *dev, target_ulong ioba,
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target_ulong len,
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enum VIOsPAPR_TCEAccess access);
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int spapr_tce_dma_read(VIOsPAPRDevice *dev, uint64_t taddr,
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void *buf, uint32_t size);
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int spapr_tce_dma_write(VIOsPAPRDevice *dev, uint64_t taddr,
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const void *buf, uint32_t size);
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int spapr_tce_dma_zero(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t size);
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void stb_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint8_t val);
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void sth_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint16_t val);
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void stw_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t val);
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void stq_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint64_t val);
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uint64_t ldq_tce(VIOsPAPRDevice *dev, uint64_t taddr);
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int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq);
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void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len);
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void spapr_vty_create(VIOsPAPRBus *bus,
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uint32_t reg, CharDriverState *chardev,
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qemu_irq qirq, uint32_t vio_irq_num);
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void spapr_vlan_create(VIOsPAPRBus *bus, uint32_t reg, NICInfo *nd,
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qemu_irq qirq, uint32_t vio_irq_num);
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void spapr_vscsi_create(VIOsPAPRBus *bus, uint32_t reg,
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qemu_irq qirq, uint32_t vio_irq_num);
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int spapr_tce_set_bypass(uint32_t unit, uint32_t enable);
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void spapr_vio_quiesce(void);
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#endif /* _HW_SPAPR_VIO_H */
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