| Heiko J Schick | fab9722 | 2006-09-22 15:22:22 -0700 | [diff] [blame] | 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 | */ |
| 52 | struct 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 | */ |
| 61 | struct 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 | |
| 69 | static 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 | |
| 75 | static 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 | |
| Stefan Roscher | 1988d1f | 2009-05-13 16:52:43 -0700 | [diff] [blame] | 81 | int hcp_galpas_ctor(struct h_galpas *galpas, int is_user, |
| Heiko J Schick | fab9722 | 2006-09-22 15:22:22 -0700 | [diff] [blame] | 82 | u64 paddr_kernel, u64 paddr_user); |
| 83 | |
| 84 | int hcp_galpas_dtor(struct h_galpas *galpas); |
| 85 | |
| Alexander Schmidt | e675b6d | 2010-07-05 16:19:25 +0000 | [diff] [blame] | 86 | u64 hcall_map_page(u64 physaddr); |
| Heiko J Schick | fab9722 | 2006-09-22 15:22:22 -0700 | [diff] [blame] | 87 | |
| 88 | int hcall_unmap_page(u64 mapaddr); |
| 89 | |
| 90 | #endif |