1 #ifndef HW_SPAPR_VIO_H 2 #define HW_SPAPR_VIO_H 3 4 /* 5 * QEMU sPAPR VIO bus definitions 6 * 7 * Copyright (c) 2010 David Gibson, IBM Corporation <david@gibson.dropbear.id.au> 8 * Based on the s390 virtio bus definitions: 9 * Copyright (c) 2009 Alexander Graf <agraf@suse.de> 10 * 11 * This library is free software; you can redistribute it and/or 12 * modify it under the terms of the GNU Lesser General Public 13 * License as published by the Free Software Foundation; either 14 * version 2 of the License, or (at your option) any later version. 15 * 16 * This library is distributed in the hope that it will be useful, 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * Lesser General Public License for more details. 20 * 21 * You should have received a copy of the GNU Lesser General Public 22 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 23 */ 24 25 #include "sysemu/dma.h" 26 27 #define TYPE_VIO_SPAPR_DEVICE "vio-spapr-device" 28 #define VIO_SPAPR_DEVICE(obj) \ 29 OBJECT_CHECK(VIOsPAPRDevice, (obj), TYPE_VIO_SPAPR_DEVICE) 30 #define VIO_SPAPR_DEVICE_CLASS(klass) \ 31 OBJECT_CLASS_CHECK(VIOsPAPRDeviceClass, (klass), TYPE_VIO_SPAPR_DEVICE) 32 #define VIO_SPAPR_DEVICE_GET_CLASS(obj) \ 33 OBJECT_GET_CLASS(VIOsPAPRDeviceClass, (obj), TYPE_VIO_SPAPR_DEVICE) 34 35 #define TYPE_SPAPR_VIO_BUS "spapr-vio-bus" 36 #define SPAPR_VIO_BUS(obj) OBJECT_CHECK(VIOsPAPRBus, (obj), TYPE_SPAPR_VIO_BUS) 37 38 #define TYPE_SPAPR_VIO_BRIDGE "spapr-vio-bridge" 39 40 typedef struct VIOsPAPR_CRQ { 41 uint64_t qladdr; 42 uint32_t qsize; 43 uint32_t qnext; 44 int(*SendFunc)(struct VIOsPAPRDevice *vdev, uint8_t *crq); 45 } VIOsPAPR_CRQ; 46 47 typedef struct VIOsPAPRDevice VIOsPAPRDevice; 48 typedef struct VIOsPAPRBus VIOsPAPRBus; 49 50 typedef struct VIOsPAPRDeviceClass { 51 DeviceClass parent_class; 52 53 const char *dt_name, *dt_type, *dt_compatible; 54 target_ulong signal_mask; 55 uint32_t rtce_window_size; 56 void (*realize)(VIOsPAPRDevice *dev, Error **errp); 57 void (*reset)(VIOsPAPRDevice *dev); 58 int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off); 59 } VIOsPAPRDeviceClass; 60 61 struct VIOsPAPRDevice { 62 DeviceState qdev; 63 uint32_t reg; 64 uint32_t irq; 65 uint64_t signal_state; 66 VIOsPAPR_CRQ crq; 67 AddressSpace as; 68 MemoryRegion mrroot; 69 MemoryRegion mrbypass; 70 sPAPRTCETable *tcet; 71 }; 72 73 #define DEFINE_SPAPR_PROPERTIES(type, field) \ 74 DEFINE_PROP_UINT32("reg", type, field.reg, -1) 75 76 struct VIOsPAPRBus { 77 BusState bus; 78 uint32_t next_reg; 79 int (*init)(VIOsPAPRDevice *dev); 80 int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off); 81 }; 82 83 extern VIOsPAPRBus *spapr_vio_bus_init(void); 84 extern VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg); 85 extern int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt); 86 extern int spapr_populate_chosen_stdout(void *fdt, VIOsPAPRBus *bus); 87 88 extern int spapr_vio_signal(VIOsPAPRDevice *dev, target_ulong mode); 89 90 static inline qemu_irq spapr_vio_qirq(VIOsPAPRDevice *dev) 91 { 92 sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine()); 93 94 return xics_get_qirq(spapr->xics, dev->irq); 95 } 96 97 static inline bool spapr_vio_dma_valid(VIOsPAPRDevice *dev, uint64_t taddr, 98 uint32_t size, DMADirection dir) 99 { 100 return dma_memory_valid(&dev->as, taddr, size, dir); 101 } 102 103 static inline int spapr_vio_dma_read(VIOsPAPRDevice *dev, uint64_t taddr, 104 void *buf, uint32_t size) 105 { 106 return (dma_memory_read(&dev->as, taddr, buf, size) != 0) ? 107 H_DEST_PARM : H_SUCCESS; 108 } 109 110 static inline int spapr_vio_dma_write(VIOsPAPRDevice *dev, uint64_t taddr, 111 const void *buf, uint32_t size) 112 { 113 return (dma_memory_write(&dev->as, taddr, buf, size) != 0) ? 114 H_DEST_PARM : H_SUCCESS; 115 } 116 117 static inline int spapr_vio_dma_set(VIOsPAPRDevice *dev, uint64_t taddr, 118 uint8_t c, uint32_t size) 119 { 120 return (dma_memory_set(&dev->as, taddr, c, size) != 0) ? 121 H_DEST_PARM : H_SUCCESS; 122 } 123 124 #define vio_stb(_dev, _addr, _val) (stb_dma(&(_dev)->as, (_addr), (_val))) 125 #define vio_sth(_dev, _addr, _val) (stw_be_dma(&(_dev)->as, (_addr), (_val))) 126 #define vio_stl(_dev, _addr, _val) (stl_be_dma(&(_dev)->as, (_addr), (_val))) 127 #define vio_stq(_dev, _addr, _val) (stq_be_dma(&(_dev)->as, (_addr), (_val))) 128 #define vio_ldq(_dev, _addr) (ldq_be_dma(&(_dev)->as, (_addr))) 129 130 int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq); 131 132 VIOsPAPRDevice *vty_lookup(sPAPRMachineState *spapr, target_ulong reg); 133 void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len); 134 void spapr_vty_create(VIOsPAPRBus *bus, CharDriverState *chardev); 135 void spapr_vlan_create(VIOsPAPRBus *bus, NICInfo *nd); 136 void spapr_vscsi_create(VIOsPAPRBus *bus); 137 138 VIOsPAPRDevice *spapr_vty_get_default(VIOsPAPRBus *bus); 139 140 void spapr_vio_quiesce(void); 141 142 extern const VMStateDescription vmstate_spapr_vio; 143 144 #define VMSTATE_SPAPR_VIO(_f, _s) \ 145 VMSTATE_STRUCT(_f, _s, 0, vmstate_spapr_vio, VIOsPAPRDevice) 146 147 void spapr_vio_set_bypass(VIOsPAPRDevice *dev, bool bypass); 148 149 #endif /* HW_SPAPR_VIO_H */ 150