]>
Commit | Line | Data |
---|---|---|
bc63d387 DN |
1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. | |
7 | */ | |
8 | ||
9 | /* | |
10 | * Cross Partition (XP) uv-based functions. | |
11 | * | |
12 | * Architecture specific implementation of common functions. | |
13 | * | |
14 | */ | |
15 | ||
a812dcc3 DN |
16 | #include <linux/device.h> |
17 | #include <asm/uv/uv_hub.h> | |
6c1c325d DN |
18 | #if defined CONFIG_X86_64 |
19 | #include <asm/uv/bios.h> | |
20 | #elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV | |
21 | #include <asm/sn/sn_sal.h> | |
22 | #endif | |
a812dcc3 | 23 | #include "../sgi-gru/grukservices.h" |
bc63d387 DN |
24 | #include "xp.h" |
25 | ||
a812dcc3 DN |
26 | /* |
27 | * Convert a virtual memory address to a physical memory address. | |
28 | */ | |
29 | static unsigned long | |
30 | xp_pa_uv(void *addr) | |
31 | { | |
32 | return uv_gpa(addr); | |
33 | } | |
34 | ||
68212893 RH |
35 | /* |
36 | * Convert a global physical to socket physical address. | |
37 | */ | |
38 | static unsigned long | |
39 | xp_socket_pa_uv(unsigned long gpa) | |
40 | { | |
41 | return uv_gpa_to_soc_phys_ram(gpa); | |
42 | } | |
43 | ||
908787db | 44 | static enum xp_retval |
a812dcc3 DN |
45 | xp_remote_memcpy_uv(unsigned long dst_gpa, const unsigned long src_gpa, |
46 | size_t len) | |
908787db | 47 | { |
a812dcc3 DN |
48 | int ret; |
49 | ||
50 | ret = gru_copy_gpa(dst_gpa, src_gpa, len); | |
51 | if (ret == 0) | |
52 | return xpSuccess; | |
53 | ||
54 | dev_err(xp, "gru_copy_gpa() failed, dst_gpa=0x%016lx src_gpa=0x%016lx " | |
55 | "len=%ld\n", dst_gpa, src_gpa, len); | |
56 | return xpGruCopyError; | |
908787db DN |
57 | } |
58 | ||
5b8669df DN |
59 | static int |
60 | xp_cpu_to_nasid_uv(int cpuid) | |
61 | { | |
62 | /* ??? Is this same as sn2 nasid in mach/part bitmaps set up by SAL? */ | |
63 | return UV_PNODE_TO_NASID(uv_cpu_to_pnode(cpuid)); | |
64 | } | |
65 | ||
6c1c325d DN |
66 | static enum xp_retval |
67 | xp_expand_memprotect_uv(unsigned long phys_addr, unsigned long size) | |
68 | { | |
69 | int ret; | |
70 | ||
71 | #if defined CONFIG_X86_64 | |
72 | ret = uv_bios_change_memprotect(phys_addr, size, UV_MEMPROT_ALLOW_RW); | |
73 | if (ret != BIOS_STATUS_SUCCESS) { | |
74 | dev_err(xp, "uv_bios_change_memprotect(,, " | |
75 | "UV_MEMPROT_ALLOW_RW) failed, ret=%d\n", ret); | |
76 | return xpBiosError; | |
77 | } | |
78 | ||
79 | #elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV | |
80 | u64 nasid_array; | |
81 | ||
82 | ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_1, | |
83 | &nasid_array); | |
84 | if (ret != 0) { | |
85 | dev_err(xp, "sn_change_memprotect(,, " | |
86 | "SN_MEMPROT_ACCESS_CLASS_1,) failed ret=%d\n", ret); | |
87 | return xpSalError; | |
88 | } | |
89 | #else | |
90 | #error not a supported configuration | |
91 | #endif | |
92 | return xpSuccess; | |
93 | } | |
94 | ||
95 | static enum xp_retval | |
96 | xp_restrict_memprotect_uv(unsigned long phys_addr, unsigned long size) | |
97 | { | |
98 | int ret; | |
99 | ||
100 | #if defined CONFIG_X86_64 | |
101 | ret = uv_bios_change_memprotect(phys_addr, size, | |
102 | UV_MEMPROT_RESTRICT_ACCESS); | |
103 | if (ret != BIOS_STATUS_SUCCESS) { | |
104 | dev_err(xp, "uv_bios_change_memprotect(,, " | |
105 | "UV_MEMPROT_RESTRICT_ACCESS) failed, ret=%d\n", ret); | |
106 | return xpBiosError; | |
107 | } | |
108 | ||
109 | #elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV | |
110 | u64 nasid_array; | |
111 | ||
112 | ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_0, | |
113 | &nasid_array); | |
114 | if (ret != 0) { | |
115 | dev_err(xp, "sn_change_memprotect(,, " | |
116 | "SN_MEMPROT_ACCESS_CLASS_0,) failed ret=%d\n", ret); | |
117 | return xpSalError; | |
118 | } | |
119 | #else | |
120 | #error not a supported configuration | |
121 | #endif | |
122 | return xpSuccess; | |
123 | } | |
124 | ||
bc63d387 DN |
125 | enum xp_retval |
126 | xp_init_uv(void) | |
127 | { | |
128 | BUG_ON(!is_uv()); | |
129 | ||
130 | xp_max_npartitions = XP_MAX_NPARTITIONS_UV; | |
31de5ece DN |
131 | xp_partition_id = sn_partition_id; |
132 | xp_region_size = sn_region_size; | |
908787db | 133 | |
a812dcc3 | 134 | xp_pa = xp_pa_uv; |
68212893 | 135 | xp_socket_pa = xp_socket_pa_uv; |
908787db | 136 | xp_remote_memcpy = xp_remote_memcpy_uv; |
5b8669df | 137 | xp_cpu_to_nasid = xp_cpu_to_nasid_uv; |
6c1c325d DN |
138 | xp_expand_memprotect = xp_expand_memprotect_uv; |
139 | xp_restrict_memprotect = xp_restrict_memprotect_uv; | |
908787db DN |
140 | |
141 | return xpSuccess; | |
bc63d387 DN |
142 | } |
143 | ||
144 | void | |
145 | xp_exit_uv(void) | |
146 | { | |
147 | BUG_ON(!is_uv()); | |
148 | } |