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 #include "hw/irq.h" 28 29 #define TYPE_VIO_SPAPR_DEVICE "vio-spapr-device" 30 #define VIO_SPAPR_DEVICE(obj) \ 31 OBJECT_CHECK(SpaprVioDevice, (obj), TYPE_VIO_SPAPR_DEVICE) 32 #define VIO_SPAPR_DEVICE_CLASS(klass) \ 33 OBJECT_CLASS_CHECK(SpaprVioDeviceClass, (klass), TYPE_VIO_SPAPR_DEVICE) 34 #define VIO_SPAPR_DEVICE_GET_CLASS(obj) \ 35 OBJECT_GET_CLASS(SpaprVioDeviceClass, (obj), TYPE_VIO_SPAPR_DEVICE) 36 37 #define TYPE_SPAPR_VIO_BUS "spapr-vio-bus" 38 #define SPAPR_VIO_BUS(obj) OBJECT_CHECK(SpaprVioBus, (obj), TYPE_SPAPR_VIO_BUS) 39 40 #define TYPE_SPAPR_VIO_BRIDGE "spapr-vio-bridge" 41 42 typedef struct SpaprVioCrq { 43 uint64_t qladdr; 44 uint32_t qsize; 45 uint32_t qnext; 46 int(*SendFunc)(struct SpaprVioDevice *vdev, uint8_t *crq); 47 } SpaprVioCrq; 48 49 typedef struct SpaprVioDevice SpaprVioDevice; 50 typedef struct SpaprVioBus SpaprVioBus; 51 52 typedef struct SpaprVioDeviceClass { 53 DeviceClass parent_class; 54 55 const char *dt_name, *dt_type, *dt_compatible; 56 target_ulong signal_mask; 57 uint32_t rtce_window_size; 58 void (*realize)(SpaprVioDevice *dev, Error **errp); 59 void (*reset)(SpaprVioDevice *dev); 60 int (*devnode)(SpaprVioDevice *dev, void *fdt, int node_off); 61 } SpaprVioDeviceClass; 62 63 struct SpaprVioDevice { 64 DeviceState qdev; 65 uint32_t reg; 66 uint32_t irq; 67 uint64_t signal_state; 68 SpaprVioCrq crq; 69 AddressSpace as; 70 MemoryRegion mrroot; 71 MemoryRegion mrbypass; 72 SpaprTceTable *tcet; 73 }; 74 75 #define DEFINE_SPAPR_PROPERTIES(type, field) \ 76 DEFINE_PROP_UINT32("reg", type, field.reg, -1) 77 78 struct SpaprVioBus { 79 BusState bus; 80 uint32_t next_reg; 81 }; 82 83 SpaprVioBus *spapr_vio_bus_init(void); 84 SpaprVioDevice *spapr_vio_find_by_reg(SpaprVioBus *bus, uint32_t reg); 85 void spapr_dt_vdevice(SpaprVioBus *bus, void *fdt); 86 gchar *spapr_vio_stdout_path(SpaprVioBus *bus); 87 88 static inline void spapr_vio_irq_pulse(SpaprVioDevice *dev) 89 { 90 SpaprMachineState *spapr = SPAPR_MACHINE(qdev_get_machine()); 91 92 qemu_irq_pulse(spapr_qirq(spapr, dev->irq)); 93 } 94 95 static inline bool spapr_vio_dma_valid(SpaprVioDevice *dev, uint64_t taddr, 96 uint32_t size, DMADirection dir) 97 { 98 return dma_memory_valid(&dev->as, taddr, size, dir); 99 } 100 101 static inline int spapr_vio_dma_read(SpaprVioDevice *dev, uint64_t taddr, 102 void *buf, uint32_t size) 103 { 104 return (dma_memory_read(&dev->as, taddr, buf, size) != 0) ? 105 H_DEST_PARM : H_SUCCESS; 106 } 107 108 static inline int spapr_vio_dma_write(SpaprVioDevice *dev, uint64_t taddr, 109 const void *buf, uint32_t size) 110 { 111 return (dma_memory_write(&dev->as, taddr, buf, size) != 0) ? 112 H_DEST_PARM : H_SUCCESS; 113 } 114 115 static inline int spapr_vio_dma_set(SpaprVioDevice *dev, uint64_t taddr, 116 uint8_t c, uint32_t size) 117 { 118 return (dma_memory_set(&dev->as, taddr, c, size) != 0) ? 119 H_DEST_PARM : H_SUCCESS; 120 } 121 122 #define vio_stb(_dev, _addr, _val) (stb_dma(&(_dev)->as, (_addr), (_val))) 123 #define vio_sth(_dev, _addr, _val) (stw_be_dma(&(_dev)->as, (_addr), (_val))) 124 #define vio_stl(_dev, _addr, _val) (stl_be_dma(&(_dev)->as, (_addr), (_val))) 125 #define vio_stq(_dev, _addr, _val) (stq_be_dma(&(_dev)->as, (_addr), (_val))) 126 #define vio_ldq(_dev, _addr) (ldq_be_dma(&(_dev)->as, (_addr))) 127 128 int spapr_vio_send_crq(SpaprVioDevice *dev, uint8_t *crq); 129 130 SpaprVioDevice *vty_lookup(SpaprMachineState *spapr, target_ulong reg); 131 void vty_putchars(SpaprVioDevice *sdev, uint8_t *buf, int len); 132 void spapr_vty_create(SpaprVioBus *bus, Chardev *chardev); 133 void spapr_vlan_create(SpaprVioBus *bus, NICInfo *nd); 134 void spapr_vscsi_create(SpaprVioBus *bus); 135 136 SpaprVioDevice *spapr_vty_get_default(SpaprVioBus *bus); 137 138 extern const VMStateDescription vmstate_spapr_vio; 139 140 #define VMSTATE_SPAPR_VIO(_f, _s) \ 141 VMSTATE_STRUCT(_f, _s, 0, vmstate_spapr_vio, SpaprVioDevice) 142 143 void spapr_vio_set_bypass(SpaprVioDevice *dev, bool bypass); 144 145 #endif /* HW_SPAPR_VIO_H */ 146