summaryrefslogtreecommitdiff
path: root/arch/s390/tools/gen_facilities.c
blob: 61ce5b59b828e9ab155e496f7ef1ba8b65e633f9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
// SPDX-License-Identifier: GPL-2.0
/*
 * Simple program to generate defines out of facility lists that use the bit
 * numbering scheme from the Princples of Operations: most significant bit
 * has bit number 0.
 *
 *    Copyright IBM Corp. 2015, 2018
 *
 */

#include <strings.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>

struct facility_def {
	char *name;
	int *bits;
};

static struct facility_def facility_defs[] = {
	{
		/*
		 * FACILITIES_ALS contains the list of facilities that are
		 * required to run a kernel that is compiled e.g. with
		 * -march=<machine>.
		 */
		.name = "FACILITIES_ALS",
		.bits = (int[]){
#ifdef CONFIG_HAVE_MARCH_Z900_FEATURES
			0,  /* N3 instructions */
			1,  /* z/Arch mode installed */
#endif
#ifdef CONFIG_HAVE_MARCH_Z990_FEATURES
			18, /* long displacement facility */
#endif
#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
			21, /* extended-immediate facility */
			25, /* store clock fast */
#endif
#ifdef CONFIG_HAVE_MARCH_Z10_FEATURES
			27, /* mvcos */
			32, /* compare and swap and store */
			33, /* compare and swap and store 2 */
			34, /* general instructions extension */
			35, /* execute extensions */
#endif
#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
			45, /* fast-BCR, etc. */
#endif
#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
			49, /* misc-instruction-extensions */
			52, /* interlocked facility 2 */
#endif
#ifdef CONFIG_HAVE_MARCH_Z13_FEATURES
			53, /* load-and-zero-rightmost-byte, etc. */
#endif
#ifdef CONFIG_HAVE_MARCH_Z14_FEATURES
			58, /* miscellaneous-instruction-extension 2 */
#endif
#ifdef CONFIG_HAVE_MARCH_Z15_FEATURES
			61, /* miscellaneous-instruction-extension 3 */
#endif
			-1 /* END */
		}
	},
	{
		/*
		 * FACILITIES_KVM contains the list of facilities that are part
		 * of the default facility mask and list that are passed to the
		 * initial CPU model. If no CPU model is used, this, together
		 * with the non-hypervisor managed bits, is the maximum list of
		 * guest facilities supported by KVM.
		 */
		.name = "FACILITIES_KVM",
		.bits = (int[]){
			0,  /* N3 instructions */
			1,  /* z/Arch mode installed */
			2,  /* z/Arch mode active */
			3,  /* DAT-enhancement */
			4,  /* idte segment table */
			5,  /* idte region table */
			6,  /* ASN-and-LX reuse */
			7,  /* stfle */
			8,  /* enhanced-DAT 1 */
			9,  /* sense-running-status */
			10, /* conditional sske */
			13, /* ipte-range */
			14, /* nonquiescing key-setting */
			73, /* transactional execution */
			75, /* access-exception-fetch/store indication */
			76, /* msa extension 3 */
			77, /* msa extension 4 */
			78, /* enhanced-DAT 2 */
			130, /* instruction-execution-protection */
			131, /* enhanced-SOP 2 and side-effect */
			139, /* multiple epoch facility */
			146, /* msa extension 8 */
			150, /* enhanced sort */
			151, /* deflate conversion */
			155, /* msa extension 9 */
			-1  /* END */
		}
	},
	{
		/*
		 * FACILITIES_KVM_CPUMODEL contains the list of facilities
		 * that can be enabled by CPU model code if the host supports
		 * it. These facilities are not passed to the guest without
		 * CPU model support.
		 */

		.name = "FACILITIES_KVM_CPUMODEL",
		.bits = (int[]){
			12, /* AP Query Configuration Information */
			15, /* AP Facilities Test */
			156, /* etoken facility */
			-1  /* END */
		}
	},
};

static void print_facility_list(struct facility_def *def)
{
	unsigned int high, bit, dword, i;
	unsigned long long *array;

	array = calloc(1, 8);
	if (!array)
		exit(EXIT_FAILURE);
	high = 0;
	for (i = 0; def->bits[i] != -1; i++) {
		bit = 63 - (def->bits[i] & 63);
		dword = def->bits[i] / 64;
		if (dword > high) {
			array = realloc(array, (dword + 1) * 8);
			if (!array)
				exit(EXIT_FAILURE);
			memset(array + high + 1, 0, (dword - high) * 8);
			high = dword;
		}
		array[dword] |= 1ULL << bit;
	}
	printf("#define %s ", def->name);
	for (i = 0; i <= high; i++)
		printf("_AC(0x%016llx,UL)%c", array[i], i < high ? ',' : '\n');
	free(array);
}

static void print_facility_lists(void)
{
	unsigned int i;

	for (i = 0; i < sizeof(facility_defs) / sizeof(facility_defs[0]); i++)
		print_facility_list(&facility_defs[i]);
}

int main(int argc, char **argv)
{
	printf("#ifndef __ASM_S390_FACILITY_DEFS__\n");
	printf("#define __ASM_S390_FACILITY_DEFS__\n");
	printf("/*\n");
	printf(" * DO NOT MODIFY.\n");
	printf(" *\n");
	printf(" * This file was generated by %s\n", __FILE__);
	printf(" */\n\n");
	printf("#include <linux/const.h>\n\n");
	print_facility_lists();
	printf("\n#endif\n");
	return 0;
}