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Annotation of qemu/hw/spapr_vio.h, revision 1.1

1.1     ! root        1: #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 <[email protected]>
        !             7:  * Based on the s390 virtio bus definitions:
        !             8:  * Copyright (c) 2009 Alexander Graf <[email protected]>
        !             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: 
        !            24: #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: 
        !            28: enum VIOsPAPR_TCEAccess {
        !            29:     SPAPR_TCE_FAULT = 0,
        !            30:     SPAPR_TCE_RO = 1,
        !            31:     SPAPR_TCE_WO = 2,
        !            32:     SPAPR_TCE_RW = 3,
        !            33: };
        !            34: 
        !            35: #define SPAPR_VTY_BASE_ADDRESS     0x30000000
        !            36: 
        !            37: struct VIOsPAPRDevice;
        !            38: 
        !            39: typedef struct VIOsPAPR_RTCE {
        !            40:     uint64_t tce;
        !            41: } VIOsPAPR_RTCE;
        !            42: 
        !            43: typedef 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: 
        !            50: typedef struct VIOsPAPRDevice {
        !            51:     DeviceState qdev;
        !            52:     uint32_t reg;
        !            53:     uint32_t flags;
        !            54: #define VIO_PAPR_FLAG_DMA_BYPASS        0x1
        !            55:     qemu_irq qirq;
        !            56:     uint32_t vio_irq_num;
        !            57:     target_ulong signal_state;
        !            58:     uint32_t rtce_window_size;
        !            59:     VIOsPAPR_RTCE *rtce_table;
        !            60:     VIOsPAPR_CRQ crq;
        !            61: } VIOsPAPRDevice;
        !            62: 
        !            63: typedef struct VIOsPAPRBus {
        !            64:     BusState bus;
        !            65: } VIOsPAPRBus;
        !            66: 
        !            67: typedef struct {
        !            68:     DeviceInfo qdev;
        !            69:     const char *dt_name, *dt_type, *dt_compatible;
        !            70:     target_ulong signal_mask;
        !            71:     int (*init)(VIOsPAPRDevice *dev);
        !            72:     void (*hcalls)(VIOsPAPRBus *bus);
        !            73:     int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
        !            74: } VIOsPAPRDeviceInfo;
        !            75: 
        !            76: extern VIOsPAPRBus *spapr_vio_bus_init(void);
        !            77: extern VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg);
        !            78: extern void spapr_vio_bus_register_withprop(VIOsPAPRDeviceInfo *info);
        !            79: extern int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt);
        !            80: 
        !            81: extern int spapr_vio_signal(VIOsPAPRDevice *dev, target_ulong mode);
        !            82: 
        !            83: int spapr_vio_check_tces(VIOsPAPRDevice *dev, target_ulong ioba,
        !            84:                          target_ulong len,
        !            85:                          enum VIOsPAPR_TCEAccess access);
        !            86: 
        !            87: int spapr_tce_dma_read(VIOsPAPRDevice *dev, uint64_t taddr,
        !            88:                        void *buf, uint32_t size);
        !            89: int spapr_tce_dma_write(VIOsPAPRDevice *dev, uint64_t taddr,
        !            90:                         const void *buf, uint32_t size);
        !            91: int spapr_tce_dma_zero(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t size);
        !            92: void stb_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint8_t val);
        !            93: void sth_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint16_t val);
        !            94: void stw_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint32_t val);
        !            95: void stq_tce(VIOsPAPRDevice *dev, uint64_t taddr, uint64_t val);
        !            96: uint64_t ldq_tce(VIOsPAPRDevice *dev, uint64_t taddr);
        !            97: 
        !            98: int spapr_vio_send_crq(VIOsPAPRDevice *dev, uint8_t *crq);
        !            99: 
        !           100: void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len);
        !           101: void spapr_vty_create(VIOsPAPRBus *bus,
        !           102:                       uint32_t reg, CharDriverState *chardev,
        !           103:                       qemu_irq qirq, uint32_t vio_irq_num);
        !           104: 
        !           105: void spapr_vlan_create(VIOsPAPRBus *bus, uint32_t reg, NICInfo *nd,
        !           106:                        qemu_irq qirq, uint32_t vio_irq_num);
        !           107: 
        !           108: void spapr_vscsi_create(VIOsPAPRBus *bus, uint32_t reg,
        !           109:                         qemu_irq qirq, uint32_t vio_irq_num);
        !           110: 
        !           111: int spapr_tce_set_bypass(uint32_t unit, uint32_t enable);
        !           112: void spapr_vio_quiesce(void);
        !           113: 
        !           114: #endif /* _HW_SPAPR_VIO_H */

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