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https://gitlab.com/qemu-project/qemu
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136 lines
4.7 KiB
C
136 lines
4.7 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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#include "sysemu/dma.h"
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#define TYPE_VIO_SPAPR_DEVICE "vio-spapr-device"
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#define VIO_SPAPR_DEVICE(obj) \
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OBJECT_CHECK(VIOsPAPRDevice, (obj), TYPE_VIO_SPAPR_DEVICE)
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#define VIO_SPAPR_DEVICE_CLASS(klass) \
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OBJECT_CLASS_CHECK(VIOsPAPRDeviceClass, (klass), TYPE_VIO_SPAPR_DEVICE)
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#define VIO_SPAPR_DEVICE_GET_CLASS(obj) \
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OBJECT_GET_CLASS(VIOsPAPRDeviceClass, (obj), TYPE_VIO_SPAPR_DEVICE)
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#define TYPE_SPAPR_VIO_BUS "spapr-vio-bus"
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#define SPAPR_VIO_BUS(obj) OBJECT_CHECK(VIOsPAPRBus, (obj), TYPE_SPAPR_VIO_BUS)
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struct VIOsPAPRDevice;
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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 VIOsPAPRDevice;
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typedef struct VIOsPAPRBus VIOsPAPRBus;
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typedef struct VIOsPAPRDeviceClass {
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DeviceClass parent_class;
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const char *dt_name, *dt_type, *dt_compatible;
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target_ulong signal_mask;
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uint32_t rtce_window_size;
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int (*init)(VIOsPAPRDevice *dev);
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void (*reset)(VIOsPAPRDevice *dev);
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int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
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} VIOsPAPRDeviceClass;
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struct VIOsPAPRDevice {
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DeviceState qdev;
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uint32_t reg;
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uint32_t irq;
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target_ulong signal_state;
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VIOsPAPR_CRQ crq;
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DMAContext *dma;
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};
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#define DEFINE_SPAPR_PROPERTIES(type, field) \
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DEFINE_PROP_UINT32("reg", type, field.reg, -1)
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struct VIOsPAPRBus {
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BusState bus;
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uint32_t next_reg;
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int (*init)(VIOsPAPRDevice *dev);
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int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
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};
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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 int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt);
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extern int spapr_populate_chosen_stdout(void *fdt, VIOsPAPRBus *bus);
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extern int spapr_vio_signal(VIOsPAPRDevice *dev, target_ulong mode);
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static inline qemu_irq spapr_vio_qirq(VIOsPAPRDevice *dev)
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{
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return xics_get_qirq(spapr->icp, dev->irq);
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}
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static inline bool spapr_vio_dma_valid(VIOsPAPRDevice *dev, uint64_t taddr,
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uint32_t size, DMADirection dir)
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{
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return dma_memory_valid(dev->dma, taddr, size, dir);
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}
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static inline int spapr_vio_dma_read(VIOsPAPRDevice *dev, uint64_t taddr,
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void *buf, uint32_t size)
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{
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return (dma_memory_read(dev->dma, taddr, buf, size) != 0) ?
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H_DEST_PARM : H_SUCCESS;
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}
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static inline int spapr_vio_dma_write(VIOsPAPRDevice *dev, uint64_t taddr,
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const void *buf, uint32_t size)
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{
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return (dma_memory_write(dev->dma, taddr, buf, size) != 0) ?
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H_DEST_PARM : H_SUCCESS;
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}
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static inline int spapr_vio_dma_set(VIOsPAPRDevice *dev, uint64_t taddr,
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uint8_t c, uint32_t size)
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{
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return (dma_memory_set(dev->dma, taddr, c, size) != 0) ?
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H_DEST_PARM : H_SUCCESS;
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}
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#define vio_stb(_dev, _addr, _val) (stb_dma((_dev)->dma, (_addr), (_val)))
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#define vio_sth(_dev, _addr, _val) (stw_be_dma((_dev)->dma, (_addr), (_val)))
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#define vio_stl(_dev, _addr, _val) (stl_be_dma((_dev)->dma, (_addr), (_val)))
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#define vio_stq(_dev, _addr, _val) (stq_be_dma((_dev)->dma, (_addr), (_val)))
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#define vio_ldq(_dev, _addr) (ldq_be_dma((_dev)->dma, (_addr)))
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int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq);
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VIOsPAPRDevice *vty_lookup(sPAPREnvironment *spapr, target_ulong reg);
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void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len);
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void spapr_vty_create(VIOsPAPRBus *bus, CharDriverState *chardev);
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void spapr_vlan_create(VIOsPAPRBus *bus, NICInfo *nd);
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void spapr_vscsi_create(VIOsPAPRBus *bus);
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VIOsPAPRDevice *spapr_vty_get_default(VIOsPAPRBus *bus);
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void spapr_vio_quiesce(void);
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#endif /* _HW_SPAPR_VIO_H */
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