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 "hw/ppc/spapr.h" 26 #include "sysemu/dma.h" 27 28 #define TYPE_VIO_SPAPR_DEVICE "vio-spapr-device" 29 #define VIO_SPAPR_DEVICE(obj) \ 30 OBJECT_CHECK(SpaprVioDevice, (obj), TYPE_VIO_SPAPR_DEVICE) 31 #define VIO_SPAPR_DEVICE_CLASS(klass) \ 32 OBJECT_CLASS_CHECK(SpaprVioDeviceClass, (klass), TYPE_VIO_SPAPR_DEVICE) 33 #define VIO_SPAPR_DEVICE_GET_CLASS(obj) \ 34 OBJECT_GET_CLASS(SpaprVioDeviceClass, (obj), TYPE_VIO_SPAPR_DEVICE) 35 36 #define TYPE_SPAPR_VIO_BUS "spapr-vio-bus" 37 #define SPAPR_VIO_BUS(obj) OBJECT_CHECK(SpaprVioBus, (obj), TYPE_SPAPR_VIO_BUS) 38 39 #define TYPE_SPAPR_VIO_BRIDGE "spapr-vio-bridge" 40 41 typedef struct SpaprVioCrq { 42 uint64_t qladdr; 43 uint32_t qsize; 44 uint32_t qnext; 45 int(*SendFunc)(struct SpaprVioDevice *vdev, uint8_t *crq); 46 } SpaprVioCrq; 47 48 typedef struct SpaprVioDevice SpaprVioDevice; 49 typedef struct SpaprVioBus SpaprVioBus; 50 51 typedef struct SpaprVioDeviceClass { 52 DeviceClass parent_class; 53 54 const char *dt_name, *dt_type, *dt_compatible; 55 target_ulong signal_mask; 56 uint32_t rtce_window_size; 57 void (*realize)(SpaprVioDevice *dev, Error **errp); 58 void (*reset)(SpaprVioDevice *dev); 59 int (*devnode)(SpaprVioDevice *dev, void *fdt, int node_off); 60 } SpaprVioDeviceClass; 61 62 struct SpaprVioDevice { 63 DeviceState qdev; 64 uint32_t reg; 65 uint32_t irq; 66 uint64_t signal_state; 67 SpaprVioCrq crq; 68 AddressSpace as; 69 MemoryRegion mrroot; 70 MemoryRegion mrbypass; 71 SpaprTceTable *tcet; 72 }; 73 74 #define DEFINE_SPAPR_PROPERTIES(type, field) \ 75 DEFINE_PROP_UINT32("reg", type, field.reg, -1) 76 77 struct SpaprVioBus { 78 BusState bus; 79 uint32_t next_reg; 80 }; 81 82 extern SpaprVioBus *spapr_vio_bus_init(void); 83 extern SpaprVioDevice *spapr_vio_find_by_reg(SpaprVioBus *bus, uint32_t reg); 84 void spapr_dt_vdevice(SpaprVioBus *bus, void *fdt); 85 extern gchar *spapr_vio_stdout_path(SpaprVioBus *bus); 86 87 static inline qemu_irq spapr_vio_qirq(SpaprVioDevice *dev) 88 { 89 SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine()); 90 91 return spapr_qirq(spapr, dev->irq); 92 } 93 94 static inline bool spapr_vio_dma_valid(SpaprVioDevice *dev, uint64_t taddr, 95 uint32_t size, DMADirection dir) 96 { 97 return dma_memory_valid(&dev->as, taddr, size, dir); 98 } 99 100 static inline int spapr_vio_dma_read(SpaprVioDevice *dev, uint64_t taddr, 101 void *buf, uint32_t size) 102 { 103 return (dma_memory_read(&dev->as, taddr, buf, size) != 0) ? 104 H_DEST_PARM : H_SUCCESS; 105 } 106 107 static inline int spapr_vio_dma_write(SpaprVioDevice *dev, uint64_t taddr, 108 const void *buf, uint32_t size) 109 { 110 return (dma_memory_write(&dev->as, taddr, buf, size) != 0) ? 111 H_DEST_PARM : H_SUCCESS; 112 } 113 114 static inline int spapr_vio_dma_set(SpaprVioDevice *dev, uint64_t taddr, 115 uint8_t c, uint32_t size) 116 { 117 return (dma_memory_set(&dev->as, taddr, c, size) != 0) ? 118 H_DEST_PARM : H_SUCCESS; 119 } 120 121 #define vio_stb(_dev, _addr, _val) (stb_dma(&(_dev)->as, (_addr), (_val))) 122 #define vio_sth(_dev, _addr, _val) (stw_be_dma(&(_dev)->as, (_addr), (_val))) 123 #define vio_stl(_dev, _addr, _val) (stl_be_dma(&(_dev)->as, (_addr), (_val))) 124 #define vio_stq(_dev, _addr, _val) (stq_be_dma(&(_dev)->as, (_addr), (_val))) 125 #define vio_ldq(_dev, _addr) (ldq_be_dma(&(_dev)->as, (_addr))) 126 127 int spapr_vio_send_crq(SpaprVioDevice *dev, uint8_t *crq); 128 129 SpaprVioDevice *vty_lookup(SpaprMachineState *spapr, target_ulong reg); 130 void vty_putchars(SpaprVioDevice *sdev, uint8_t *buf, int len); 131 void spapr_vty_create(SpaprVioBus *bus, Chardev *chardev); 132 void spapr_vlan_create(SpaprVioBus *bus, NICInfo *nd); 133 void spapr_vscsi_create(SpaprVioBus *bus); 134 135 SpaprVioDevice *spapr_vty_get_default(SpaprVioBus *bus); 136 137 extern const VMStateDescription vmstate_spapr_vio; 138 139 #define VMSTATE_SPAPR_VIO(_f, _s) \ 140 VMSTATE_STRUCT(_f, _s, 0, vmstate_spapr_vio, SpaprVioDevice) 141 142 void spapr_vio_set_bypass(SpaprVioDevice *dev, bool bypass); 143 144 #endif /* HW_SPAPR_VIO_H */ 145