1/* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22/* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 */ 25 26 27/* 28 * Assembly language support for pci config space access on sun4v 29 */ 30 31#include <sys/asm_linkage.h> 32#include <sys/hypervisor_api.h> 33#include <sys/dditypes.h> 34#include <sys/pci_cfgacc.h> 35#include <io/px/px_ioapi.h> 36#include <io/px/px_lib4v.h> 37 38#if defined(lint) || defined(__lint) 39 40/*ARGSUSED*/ 41uint64_t 42hvio_config_get(devhandle_t dev_hdl, pci_device_t bdf, pci_config_offset_t off, 43 pci_config_size_t size, pci_cfg_data_t *data_p) 44{ return (0); } 45 46/*ARGSUSED*/ 47uint64_t 48hvio_config_put(devhandle_t dev_hdl, pci_device_t bdf, pci_config_offset_t off, 49 pci_config_size_t size, pci_cfg_data_t data) 50{ return (0); } 51 52#else /* lint || __lint */ 53 54 /* 55 * arg0 - devhandle 56 * arg1 - pci_device 57 * arg2 - pci_config_offset 58 * arg3 - pci_config_size (1, 2 or 4 byte) 59 * 60 * ret0 - status 61 * ret1 - error_flag 62 * ret2 - pci_cfg_data 63 */ 64 ENTRY(hvio_config_get) 65 mov HVIO_CONFIG_GET, %o5 66 ta FAST_TRAP 67 sllx %o1, 32, %o1 68 or %o0, %o1, %o0 69 movrnz %o1, -1, %o2 70 stx %o2, [%o4] 71 retl 72 nop 73 SET_SIZE(hvio_config_get) 74 75 /* 76 * arg0 - devhandle 77 * arg1 - pci_device 78 * arg2 - pci_config_offset 79 * arg3 - pci_config_size (1, 2 or 4 byte) 80 * arg4 - pci_cfg_data 81 * 82 * ret0 - status 83 * ret1 - error_flag 84 */ 85 ENTRY(hvio_config_put) 86 mov HVIO_CONFIG_PUT, %o5 87 ta FAST_TRAP 88 sllx %o1, 32, %o1 89 or %o0, %o1, %o0 90 retl 91 nop 92 SET_SIZE(hvio_config_put) 93#endif 94