acpi_fdt.c revision 1.21 1 1.21 jmcneill /* $NetBSD: acpi_fdt.c,v 1.21 2021/07/23 21:33:35 jmcneill Exp $ */
2 1.1 jmcneill
3 1.1 jmcneill /*-
4 1.1 jmcneill * Copyright (c) 2015-2017 Jared McNeill <jmcneill (at) invisible.ca>
5 1.1 jmcneill * All rights reserved.
6 1.1 jmcneill *
7 1.1 jmcneill * Redistribution and use in source and binary forms, with or without
8 1.1 jmcneill * modification, are permitted provided that the following conditions
9 1.1 jmcneill * are met:
10 1.1 jmcneill * 1. Redistributions of source code must retain the above copyright
11 1.1 jmcneill * notice, this list of conditions and the following disclaimer.
12 1.1 jmcneill * 2. Redistributions in binary form must reproduce the above copyright
13 1.1 jmcneill * notice, this list of conditions and the following disclaimer in the
14 1.1 jmcneill * documentation and/or other materials provided with the distribution.
15 1.1 jmcneill *
16 1.1 jmcneill * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 1.1 jmcneill * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 1.1 jmcneill * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 1.1 jmcneill * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 1.1 jmcneill * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 1.1 jmcneill * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 1.1 jmcneill * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 1.1 jmcneill * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 1.1 jmcneill * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 1.1 jmcneill * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 1.1 jmcneill * SUCH DAMAGE.
27 1.1 jmcneill */
28 1.1 jmcneill
29 1.9 jmcneill #include "pci.h"
30 1.7 jmcneill #include "opt_efi.h"
31 1.7 jmcneill
32 1.1 jmcneill #include <sys/cdefs.h>
33 1.21 jmcneill __KERNEL_RCSID(0, "$NetBSD: acpi_fdt.c,v 1.21 2021/07/23 21:33:35 jmcneill Exp $");
34 1.1 jmcneill
35 1.1 jmcneill #include <sys/param.h>
36 1.1 jmcneill #include <sys/bus.h>
37 1.1 jmcneill #include <sys/device.h>
38 1.1 jmcneill #include <sys/intr.h>
39 1.1 jmcneill #include <sys/systm.h>
40 1.1 jmcneill #include <sys/kernel.h>
41 1.1 jmcneill #include <sys/lwp.h>
42 1.1 jmcneill #include <sys/kmem.h>
43 1.1 jmcneill #include <sys/queue.h>
44 1.6 jmcneill #include <sys/sysctl.h>
45 1.1 jmcneill
46 1.1 jmcneill #include <dev/fdt/fdtvar.h>
47 1.1 jmcneill
48 1.1 jmcneill #include <dev/acpi/acpivar.h>
49 1.1 jmcneill #include <dev/pci/pcivar.h>
50 1.20 jmcneill #include <dev/smbiosvar.h>
51 1.1 jmcneill
52 1.2 jmcneill #include <arm/arm/psci.h>
53 1.2 jmcneill
54 1.3 jmcneill #include <arm/acpi/acpi_pci_machdep.h>
55 1.3 jmcneill
56 1.7 jmcneill #ifdef EFI_RUNTIME
57 1.7 jmcneill #include <arm/arm/efi_runtime.h>
58 1.7 jmcneill #endif
59 1.7 jmcneill
60 1.1 jmcneill static int acpi_fdt_match(device_t, cfdata_t, void *);
61 1.1 jmcneill static void acpi_fdt_attach(device_t, device_t, void *);
62 1.1 jmcneill
63 1.2 jmcneill static void acpi_fdt_poweroff(device_t);
64 1.2 jmcneill
65 1.20 jmcneill static void acpi_fdt_smbios_init(device_t);
66 1.6 jmcneill static void acpi_fdt_sysctl_init(void);
67 1.6 jmcneill
68 1.12 jmcneill extern struct arm32_bus_dma_tag acpi_coherent_dma_tag;
69 1.10 jmcneill
70 1.6 jmcneill static uint64_t smbios_table = 0;
71 1.6 jmcneill
72 1.18 thorpej static const struct device_compatible_entry compat_data[] = {
73 1.18 thorpej { .compat = "netbsd,acpi" },
74 1.18 thorpej DEVICE_COMPAT_EOL
75 1.1 jmcneill };
76 1.1 jmcneill
77 1.2 jmcneill static const struct fdtbus_power_controller_func acpi_fdt_power_funcs = {
78 1.2 jmcneill .poweroff = acpi_fdt_poweroff,
79 1.2 jmcneill };
80 1.2 jmcneill
81 1.1 jmcneill CFATTACH_DECL_NEW(acpi_fdt, 0, acpi_fdt_match, acpi_fdt_attach, NULL, NULL);
82 1.1 jmcneill
83 1.1 jmcneill static int
84 1.1 jmcneill acpi_fdt_match(device_t parent, cfdata_t cf, void *aux)
85 1.1 jmcneill {
86 1.1 jmcneill struct fdt_attach_args * const faa = aux;
87 1.1 jmcneill
88 1.18 thorpej return of_compatible_match(faa->faa_phandle, compat_data);
89 1.1 jmcneill }
90 1.1 jmcneill
91 1.1 jmcneill static void
92 1.1 jmcneill acpi_fdt_attach(device_t parent, device_t self, void *aux)
93 1.1 jmcneill {
94 1.20 jmcneill extern void platform_init(void); /* XXX */
95 1.1 jmcneill struct fdt_attach_args * const faa = aux;
96 1.1 jmcneill struct acpibus_attach_args aa;
97 1.1 jmcneill
98 1.1 jmcneill aprint_naive("\n");
99 1.7 jmcneill aprint_normal("\n");
100 1.7 jmcneill
101 1.20 jmcneill acpi_fdt_smbios_init(self);
102 1.20 jmcneill platform_init();
103 1.20 jmcneill
104 1.2 jmcneill fdtbus_register_power_controller(self, faa->faa_phandle,
105 1.2 jmcneill &acpi_fdt_power_funcs);
106 1.2 jmcneill
107 1.1 jmcneill if (!acpi_probe())
108 1.15 jmcneill panic("ACPI subsystem failed to initialize");
109 1.1 jmcneill
110 1.20 jmcneill platform_init();
111 1.20 jmcneill
112 1.9 jmcneill memset(&aa, 0, sizeof(aa));
113 1.9 jmcneill #if NPCI > 0
114 1.1 jmcneill aa.aa_pciflags =
115 1.3 jmcneill /*PCI_FLAGS_IO_OKAY |*/ PCI_FLAGS_MEM_OKAY |
116 1.17 jmcneill PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY |
117 1.1 jmcneill PCI_FLAGS_MWI_OKAY;
118 1.4 jmcneill #ifdef __HAVE_PCI_MSI_MSIX
119 1.8 jmcneill aa.aa_pciflags |= PCI_FLAGS_MSI_OKAY | PCI_FLAGS_MSIX_OKAY;
120 1.4 jmcneill #endif
121 1.9 jmcneill #endif
122 1.9 jmcneill
123 1.9 jmcneill aa.aa_memt = faa->faa_bst;
124 1.13 jmcneill aa.aa_dmat = NULL;
125 1.13 jmcneill aa.aa_dmat64 = NULL;
126 1.19 thorpej config_found(self, &aa, NULL, CFARG_EOL);
127 1.6 jmcneill
128 1.6 jmcneill acpi_fdt_sysctl_init();
129 1.1 jmcneill }
130 1.2 jmcneill
131 1.2 jmcneill static void
132 1.2 jmcneill acpi_fdt_poweroff(device_t dev)
133 1.2 jmcneill {
134 1.2 jmcneill delay(500000);
135 1.7 jmcneill #ifdef EFI_RUNTIME
136 1.7 jmcneill if (arm_efirt_reset(EFI_RESET_SHUTDOWN) == 0)
137 1.7 jmcneill return;
138 1.7 jmcneill #endif
139 1.2 jmcneill if (psci_available())
140 1.2 jmcneill psci_system_off();
141 1.2 jmcneill }
142 1.6 jmcneill
143 1.21 jmcneill static int
144 1.21 jmcneill acpi_fdt_smbios_version(void)
145 1.21 jmcneill {
146 1.21 jmcneill uint8_t *hdr;
147 1.21 jmcneill int smbver;
148 1.21 jmcneill
149 1.21 jmcneill if (smbios_table == 0) {
150 1.21 jmcneill return 0;
151 1.21 jmcneill }
152 1.21 jmcneill
153 1.21 jmcneill hdr = AcpiOsMapMemory(smbios_table, 24);
154 1.21 jmcneill if (hdr == NULL) {
155 1.21 jmcneill return 0;
156 1.21 jmcneill }
157 1.21 jmcneill if (smbios3_check_header(hdr)) {
158 1.21 jmcneill smbver = 3;
159 1.21 jmcneill } else if (smbios2_check_header(hdr)) {
160 1.21 jmcneill smbver = 2;
161 1.21 jmcneill } else {
162 1.21 jmcneill smbver = 0;
163 1.21 jmcneill }
164 1.21 jmcneill AcpiOsUnmapMemory(hdr, 24);
165 1.21 jmcneill return smbver;
166 1.21 jmcneill }
167 1.21 jmcneill
168 1.6 jmcneill static void
169 1.20 jmcneill acpi_fdt_smbios_init(device_t dev)
170 1.20 jmcneill {
171 1.20 jmcneill uint8_t *ptr;
172 1.21 jmcneill int smbver;
173 1.20 jmcneill
174 1.20 jmcneill const int chosen = OF_finddevice("/chosen");
175 1.20 jmcneill if (chosen >= 0) {
176 1.20 jmcneill of_getprop_uint64(chosen, "netbsd,smbios-table", &smbios_table);
177 1.20 jmcneill }
178 1.20 jmcneill if (smbios_table == 0) {
179 1.20 jmcneill return;
180 1.20 jmcneill }
181 1.20 jmcneill
182 1.21 jmcneill smbver = acpi_fdt_smbios_version();
183 1.21 jmcneill if (smbver == 3) {
184 1.21 jmcneill struct smb3hdr *sh = AcpiOsMapMemory(smbios_table, sizeof(*sh));
185 1.21 jmcneill if (sh == NULL) {
186 1.21 jmcneill return;
187 1.21 jmcneill }
188 1.21 jmcneill
189 1.21 jmcneill ptr = AcpiOsMapMemory(sh->addr, sh->size);
190 1.21 jmcneill if (ptr != NULL) {
191 1.21 jmcneill smbios_entry.addr = ptr;
192 1.21 jmcneill smbios_entry.len = sh->size;
193 1.21 jmcneill smbios_entry.rev = sh->eprev;
194 1.21 jmcneill smbios_entry.mjr = sh->majrev;
195 1.21 jmcneill smbios_entry.min = sh->minrev;
196 1.21 jmcneill smbios_entry.doc = sh->docrev;
197 1.21 jmcneill smbios_entry.count = UINT16_MAX;
198 1.21 jmcneill }
199 1.21 jmcneill
200 1.21 jmcneill aprint_normal_dev(dev, "SMBIOS rev. %d.%d.%d @ 0x%lx\n",
201 1.21 jmcneill sh->majrev, sh->minrev, sh->docrev, (u_long)sh->addr);
202 1.20 jmcneill AcpiOsUnmapMemory(sh, sizeof(*sh));
203 1.21 jmcneill } else if (smbver == 2) {
204 1.21 jmcneill struct smbhdr *sh = AcpiOsMapMemory(smbios_table, sizeof(*sh));
205 1.21 jmcneill if (sh == NULL) {
206 1.21 jmcneill return;
207 1.21 jmcneill }
208 1.21 jmcneill
209 1.21 jmcneill ptr = AcpiOsMapMemory(sh->addr, sh->size);
210 1.21 jmcneill if (ptr != NULL) {
211 1.21 jmcneill smbios_entry.addr = ptr;
212 1.21 jmcneill smbios_entry.len = sh->size;
213 1.21 jmcneill smbios_entry.rev = 0;
214 1.21 jmcneill smbios_entry.mjr = sh->majrev;
215 1.21 jmcneill smbios_entry.min = sh->minrev;
216 1.21 jmcneill smbios_entry.doc = 0;
217 1.21 jmcneill smbios_entry.count = sh->count;
218 1.21 jmcneill }
219 1.20 jmcneill
220 1.21 jmcneill aprint_normal_dev(dev, "SMBIOS rev. %d.%d @ 0x%lx (%d entries)\n",
221 1.21 jmcneill sh->majrev, sh->minrev, (u_long)sh->addr, sh->count);
222 1.21 jmcneill AcpiOsUnmapMemory(sh, sizeof(*sh));
223 1.20 jmcneill }
224 1.20 jmcneill }
225 1.20 jmcneill
226 1.20 jmcneill static void
227 1.6 jmcneill acpi_fdt_sysctl_init(void)
228 1.6 jmcneill {
229 1.6 jmcneill const struct sysctlnode *rnode;
230 1.6 jmcneill int error;
231 1.6 jmcneill
232 1.20 jmcneill if (smbios_table == 0) {
233 1.20 jmcneill return;
234 1.20 jmcneill }
235 1.6 jmcneill
236 1.6 jmcneill error = sysctl_createv(NULL, 0, NULL, &rnode,
237 1.6 jmcneill CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep", NULL,
238 1.6 jmcneill NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL);
239 1.20 jmcneill if (error) {
240 1.6 jmcneill return;
241 1.20 jmcneill }
242 1.6 jmcneill
243 1.20 jmcneill (void)sysctl_createv(NULL, 0, &rnode, NULL,
244 1.20 jmcneill CTLFLAG_PERMANENT | CTLFLAG_READONLY | CTLFLAG_HEX, CTLTYPE_QUAD,
245 1.20 jmcneill "smbios", SYSCTL_DESCR("SMBIOS table pointer"),
246 1.20 jmcneill NULL, 0, &smbios_table, sizeof(smbios_table),
247 1.20 jmcneill CTL_CREATE, CTL_EOL);
248 1.6 jmcneill }
249