diff options
Diffstat (limited to 'drivers/infiniband/hw/ehca/hcp_phyp.h')
-rw-r--r-- | drivers/infiniband/hw/ehca/hcp_phyp.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ehca/hcp_phyp.h b/drivers/infiniband/hw/ehca/hcp_phyp.h new file mode 100644 index 000000000000..5305c2a3ed94 --- /dev/null +++ b/drivers/infiniband/hw/ehca/hcp_phyp.h | |||
@@ -0,0 +1,90 @@ | |||
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 | |||
81 | int hcp_galpas_ctor(struct h_galpas *galpas, | ||
82 | u64 paddr_kernel, u64 paddr_user); | ||
83 | |||
84 | int hcp_galpas_dtor(struct h_galpas *galpas); | ||
85 | |||
86 | int hcall_map_page(u64 physaddr, u64 * mapaddr); | ||
87 | |||
88 | int hcall_unmap_page(u64 mapaddr); | ||
89 | |||
90 | #endif | ||