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#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,
};
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 */
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