2 * Copyright (c) 2001 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/malloc.h>
35 #include <vm/vm_kern.h>
36 #include <machine/efi.h>
37 #include <machine/md_var.h>
38 #include <machine/sal.h>
39 #include <machine/smp.h>
42 * IPIs are used more genericly than only
43 * for inter-processor interrupts. Don't
44 * make it a SMP specific thing...
46 int ipi_vector[IPI_COUNT];
48 static struct ia64_fdesc sal_fdesc;
49 static sal_entry_t fake_sal;
51 extern u_int64_t ia64_pal_entry;
52 sal_entry_t *ia64_sal_entry = fake_sal;
54 static struct uuid sal_table = EFI_TABLE_SAL;
55 static struct sal_system_table *sal_systbl;
57 static struct ia64_sal_result
58 fake_sal(u_int64_t a1, u_int64_t a2, u_int64_t a3, u_int64_t a4,
59 u_int64_t a5, u_int64_t a6, u_int64_t a7, u_int64_t a8)
61 struct ia64_sal_result res;
63 res.sal_result[0] = 0;
64 res.sal_result[1] = 0;
65 res.sal_result[2] = 0;
70 setup_ipi_vectors(int ceil)
74 ipi_vector[IPI_MCA_RENDEZ] = ceil - 0x10;
76 ipi = IPI_AST; /* First generic IPI. */
77 ceil -= 0x20; /* First vector in group. */
78 while (ipi < IPI_COUNT)
79 ipi_vector[ipi++] = ceil++;
81 ipi_vector[IPI_HIGH_FP] = ceil - 0x30;
82 ipi_vector[IPI_MCA_CMCV] = ceil - 0x30 + 1;
88 static int sizes[6] = {
89 48, 32, 16, 32, 16, 16
94 sal_systbl = efi_get_table(&sal_table);
95 if (sal_systbl == NULL)
98 if (bcmp(sal_systbl->sal_signature, SAL_SIGNATURE, 4)) {
99 printf("Bad signature for SAL System Table\n");
103 p = (u_int8_t *) (sal_systbl + 1);
104 for (i = 0; i < sal_systbl->sal_entry_count; i++) {
107 struct sal_entrypoint_descriptor *dp;
109 dp = (struct sal_entrypoint_descriptor*)p;
110 ia64_pal_entry = IA64_PHYS_TO_RR7(dp->sale_pal_proc);
112 printf("PAL Proc at 0x%lx\n", ia64_pal_entry);
113 sal_fdesc.func = IA64_PHYS_TO_RR7(dp->sale_sal_proc);
114 sal_fdesc.gp = IA64_PHYS_TO_RR7(dp->sale_sal_gp);
116 printf("SAL Proc at 0x%lx, GP at 0x%lx\n",
117 sal_fdesc.func, sal_fdesc.gp);
118 ia64_sal_entry = (sal_entry_t *) &sal_fdesc;
122 struct sal_ap_wakeup_descriptor *dp;
124 struct ia64_sal_result result;
125 struct ia64_fdesc *fd;
128 dp = (struct sal_ap_wakeup_descriptor*)p;
129 if (dp->sale_mechanism != 0) {
130 printf("SAL: unsupported AP wake-up mechanism "
131 "(%d)\n", dp->sale_mechanism);
135 if (dp->sale_vector < 0x10 || dp->sale_vector > 0xff) {
136 printf("SAL: invalid AP wake-up vector "
137 "(0x%lx)\n", dp->sale_vector);
142 * SAL documents that the wake-up vector should be
143 * high (close to 255). The MCA rendezvous vector
144 * should be less than the wake-up vector, but still
145 * "high". We use the following priority assignment:
146 * Wake-up: priority of the sale_vector
147 * Rendezvous: priority-1
148 * Generic IPIs: priority-2
149 * Special IPIs: priority-3
150 * Consequently, the wake-up priority should be at
151 * least 4 (ie vector >= 0x40).
153 if (dp->sale_vector < 0x40) {
154 printf("SAL: AP wake-up vector too low "
155 "(0x%lx)\n", dp->sale_vector);
160 printf("SAL: AP wake-up vector: 0x%lx\n",
163 ipi_vector[IPI_AP_WAKEUP] = dp->sale_vector;
164 setup_ipi_vectors(dp->sale_vector & 0xf0);
167 fd = (struct ia64_fdesc *) os_boot_rendez;
168 result = ia64_sal_entry(SAL_SET_VECTORS,
169 SAL_OS_BOOT_RENDEZ, ia64_tpa(fd->func),
170 ia64_tpa(fd->gp), 0, 0, 0, 0);
179 if (ipi_vector[IPI_AP_WAKEUP] == 0)
180 setup_ipi_vectors(0xf0);