1/* 2 * IBM eServer eHCA Infiniband device driver for Linux on POWER 3 * 4 * Firmware calls 5 * 6 * Authors: Christoph Raisch <raisch@de.ibm.com> 7 * Hoang-Nam Nguyen <hnguyen@de.ibm.com> 8 * Waleri Fomin <fomin@de.ibm.com> 9 * Gerd Bayer <gerd.bayer@de.ibm.com> 10 * 11 * Copyright (c) 2005 IBM Corporation 12 * 13 * All rights reserved. 14 * 15 * This source code is distributed under a dual license of GPL v2.0 and OpenIB 16 * BSD. 17 * 18 * OpenIB BSD License 19 * 20 * Redistribution and use in source and binary forms, with or without 21 * modification, are permitted provided that the following conditions are met: 22 * 23 * Redistributions of source code must retain the above copyright notice, this 24 * list of conditions and the following disclaimer. 25 * 26 * Redistributions in binary form must reproduce the above copyright notice, 27 * this list of conditions and the following disclaimer in the documentation 28 * and/or other materials 29 * provided with the distribution. 30 * 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 32 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 34 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 35 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 36 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 37 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 38 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 39 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 40 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 * POSSIBILITY OF SUCH DAMAGE. 42 */ 43 44#ifndef __HCP_PHYP_H__ 45#define __HCP_PHYP_H__ 46 47 48/* 49 * eHCA page (mapped into memory) 50 * resource to access eHCA register pages in CPU address space 51*/ 52struct h_galpa { 53 u64 fw_handle; 54 /* for pSeries this is a 64bit memory address where 55 I/O memory is mapped into CPU address space (kv) */ 56}; 57 58/* 59 * resource to access eHCA address space registers, all types 60 */ 61struct h_galpas { 62 u32 pid; /*PID of userspace galpa checking */ 63 struct h_galpa user; /* user space accessible resource, 64 set to 0 if unused */ 65 struct h_galpa kernel; /* kernel space accessible resource, 66 set to 0 if unused */ 67}; 68 69static inline u64 hipz_galpa_load(struct h_galpa galpa, u32 offset) 70{ 71 u64 addr = galpa.fw_handle + offset; 72 return *(volatile u64 __force *)addr; 73} 74 75static inline void hipz_galpa_store(struct h_galpa galpa, u32 offset, u64 value) 76{ 77 u64 addr = galpa.fw_handle + offset; 78 *(volatile u64 __force *)addr = value; 79} 80 81int hcp_galpas_ctor(struct h_galpas *galpas, 82 u64 paddr_kernel, u64 paddr_user); 83 84int hcp_galpas_dtor(struct h_galpas *galpas); 85 86int hcall_map_page(u64 physaddr, u64 * mapaddr); 87 88int hcall_unmap_page(u64 mapaddr); 89 90#endif 91