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 /* 39 * arg0 - devhandle 40 * arg1 - pci_device 41 * arg2 - pci_config_offset 42 * arg3 - pci_config_size (1, 2 or 4 byte) 43 * 44 * ret0 - status 45 * ret1 - error_flag 46 * ret2 - pci_cfg_data 47 */ 48 ENTRY(hvio_config_get) 49 mov HVIO_CONFIG_GET, %o5 50 ta FAST_TRAP 51 sllx %o1, 32, %o1 52 or %o0, %o1, %o0 53 movrnz %o1, -1, %o2 54 stx %o2, [%o4] 55 retl 56 nop 57 SET_SIZE(hvio_config_get) 58 59 /* 60 * arg0 - devhandle 61 * arg1 - pci_device 62 * arg2 - pci_config_offset 63 * arg3 - pci_config_size (1, 2 or 4 byte) 64 * arg4 - pci_cfg_data 65 * 66 * ret0 - status 67 * ret1 - error_flag 68 */ 69 ENTRY(hvio_config_put) 70 mov HVIO_CONFIG_PUT, %o5 71 ta FAST_TRAP 72 sllx %o1, 32, %o1 73 or %o0, %o1, %o0 74 retl 75 nop 76 SET_SIZE(hvio_config_put) 77