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