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fab97220 HS |
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 | ||
1988d1fa | 81 | int hcp_galpas_ctor(struct h_galpas *galpas, int is_user, |
fab97220 HS |
82 | u64 paddr_kernel, u64 paddr_user); |
83 | ||
84 | int hcp_galpas_dtor(struct h_galpas *galpas); | |
85 | ||
e675b6db | 86 | u64 hcall_map_page(u64 physaddr); |
fab97220 HS |
87 | |
88 | int hcall_unmap_page(u64 mapaddr); | |
89 | ||
90 | #endif |