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David Gibson4040ab72011-04-01 15:15:21 +11001#ifndef _HW_SPAPR_VIO_H
2#define _HW_SPAPR_VIO_H
3/*
4 * QEMU sPAPR VIO bus definitions
5 *
6 * Copyright (c) 2010 David Gibson, IBM Corporation <david@gibson.dropbear.id.au>
7 * Based on the s390 virtio bus definitions:
8 * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
9 *
10 * This library is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2 of the License, or (at your option) any later version.
14 *
15 * This library is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
22 */
23
David Gibsonee86dfe2011-04-01 15:15:28 +110024#define SPAPR_VIO_TCE_PAGE_SHIFT 12
25#define SPAPR_VIO_TCE_PAGE_SIZE (1ULL << SPAPR_VIO_TCE_PAGE_SHIFT)
26#define SPAPR_VIO_TCE_PAGE_MASK (SPAPR_VIO_TCE_PAGE_SIZE - 1)
27
28enum VIOsPAPR_TCEAccess {
29 SPAPR_TCE_FAULT = 0,
30 SPAPR_TCE_RO = 1,
31 SPAPR_TCE_WO = 2,
32 SPAPR_TCE_RW = 3,
33};
34
David Gibsonb4a78522011-04-19 11:54:52 +100035#define SPAPR_VTY_BASE_ADDRESS 0x30000000
36
Ben Herrenschmidtb45d63b2011-04-01 15:15:30 +110037struct VIOsPAPRDevice;
38
David Gibsonee86dfe2011-04-01 15:15:28 +110039typedef struct VIOsPAPR_RTCE {
40 uint64_t tce;
41} VIOsPAPR_RTCE;
42
Ben Herrenschmidtb45d63b2011-04-01 15:15:30 +110043typedef struct VIOsPAPR_CRQ {
44 uint64_t qladdr;
45 uint32_t qsize;
46 uint32_t qnext;
47 int(*SendFunc)(struct VIOsPAPRDevice *vdev, uint8_t *crq);
48} VIOsPAPR_CRQ;
49
David Gibson4040ab72011-04-01 15:15:21 +110050typedef struct VIOsPAPRDevice {
51 DeviceState qdev;
52 uint32_t reg;
Ben Herrenschmidt08942ac2011-04-01 15:15:32 +110053 uint32_t flags;
54#define VIO_PAPR_FLAG_DMA_BYPASS 0x1
David Gibson00dc7382011-04-01 15:15:26 +110055 qemu_irq qirq;
56 uint32_t vio_irq_num;
57 target_ulong signal_state;
David Gibsonee86dfe2011-04-01 15:15:28 +110058 uint32_t rtce_window_size;
59 VIOsPAPR_RTCE *rtce_table;
Ben Herrenschmidtb45d63b2011-04-01 15:15:30 +110060 VIOsPAPR_CRQ crq;
David Gibson4040ab72011-04-01 15:15:21 +110061} VIOsPAPRDevice;
62
63typedef struct VIOsPAPRBus {
64 BusState bus;
65} VIOsPAPRBus;
66
67typedef struct {
68 DeviceInfo qdev;
69 const char *dt_name, *dt_type, *dt_compatible;
David Gibson00dc7382011-04-01 15:15:26 +110070 target_ulong signal_mask;
David Gibson4040ab72011-04-01 15:15:21 +110071 int (*init)(VIOsPAPRDevice *dev);
72 void (*hcalls)(VIOsPAPRBus *bus);
73 int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
74} VIOsPAPRDeviceInfo;
75
76extern VIOsPAPRBus *spapr_vio_bus_init(void);
77extern VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg);
78extern void spapr_vio_bus_register_withprop(VIOsPAPRDeviceInfo *info);
79extern int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt);
80
David Gibson00dc7382011-04-01 15:15:26 +110081extern int spapr_vio_signal(VIOsPAPRDevice *dev, target_ulong mode);
82
David Gibsonee86dfe2011-04-01 15:15:28 +110083int spapr_vio_check_tces(VIOsPAPRDevice *dev, target_ulong ioba,
84 target_ulong len,
85 enum VIOsPAPR_TCEAccess access);
86
87int spapr_tce_dma_read(VIOsPAPRDevice *dev, uint64_t taddr,
88 void *buf, uint32_t size);
89int spapr_tce_dma_write(VIOsPAPRDevice *dev, uint64_t taddr,
90 const void *buf, uint32_t size);
91int spapr_tce_dma_zero(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t size);
92void stb_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint8_t val);
93void sth_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint16_t val);
94void stw_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t val);
95void stq_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint64_t val);
96uint64_t ldq_tce(VIOsPAPRDevice *dev, uint64_t taddr);
97
Ben Herrenschmidtb45d63b2011-04-01 15:15:30 +110098int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq);
99
David Gibson4040ab72011-04-01 15:15:21 +1100100void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len);
101void spapr_vty_create(VIOsPAPRBus *bus,
David Gibson0201e2d2011-04-01 15:15:27 +1100102 uint32_t reg, CharDriverState *chardev,
103 qemu_irq qirq, uint32_t vio_irq_num);
David Gibson4040ab72011-04-01 15:15:21 +1100104
David Gibson8d90ad92011-04-01 15:15:29 +1100105void spapr_vlan_create(VIOsPAPRBus *bus, uint32_t reg, NICInfo *nd,
106 qemu_irq qirq, uint32_t vio_irq_num);
107
Ben Herrenschmidt6e270442011-04-01 15:15:31 +1100108void spapr_vscsi_create(VIOsPAPRBus *bus, uint32_t reg,
109 qemu_irq qirq, uint32_t vio_irq_num);
110
Ben Herrenschmidt08942ac2011-04-01 15:15:32 +1100111int spapr_tce_set_bypass(uint32_t unit, uint32_t enable);
112void spapr_vio_quiesce(void);
113
David Gibson4040ab72011-04-01 15:15:21 +1100114#endif /* _HW_SPAPR_VIO_H */