diff options
Diffstat (limited to 'hw/spapr_vio.h')
| -rw-r--r-- | hw/spapr_vio.h | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/hw/spapr_vio.h b/hw/spapr_vio.h new file mode 100644 index 0000000000..841b04351a --- /dev/null +++ b/hw/spapr_vio.h @@ -0,0 +1,112 @@ +#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 */ |