[PATCH] Make mkcompile_h use LANG=C and LC_ALL=C for $CC -v
[linux-2.6.git] / arch / powerpc / platforms / ps3 / setup.c
1 /*
2  *  PS3 platform setup routines.
3  *
4  *  Copyright (C) 2006 Sony Computer Entertainment Inc.
5  *  Copyright 2006 Sony Corp.
6  *
7  *  This program is free software; you can redistribute it and/or modify
8  *  it under the terms of the GNU General Public License as published by
9  *  the Free Software Foundation; version 2 of the License.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *  GNU General Public License for more details.
15  *
16  *  You should have received a copy of the GNU General Public License
17  *  along with this program; if not, write to the Free Software
18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  */
20
21 #include <linux/kernel.h>
22 #include <linux/delay.h>
23 #include <linux/fs.h>
24 #include <linux/root_dev.h>
25 #include <linux/console.h>
26 #include <linux/kexec.h>
27 #include <linux/bootmem.h>
28
29 #include <asm/machdep.h>
30 #include <asm/firmware.h>
31 #include <asm/time.h>
32 #include <asm/iommu.h>
33 #include <asm/udbg.h>
34 #include <asm/prom.h>
35 #include <asm/lv1call.h>
36
37 #include "platform.h"
38
39 #if defined(DEBUG)
40 #define DBG(fmt...) udbg_printf(fmt)
41 #else
42 #define DBG(fmt...) do{if(0)printk(fmt);}while(0)
43 #endif
44
45 int ps3_get_firmware_version(union ps3_firmware_version *v)
46 {
47         int result = lv1_get_version_info(&v->raw);
48
49         if (result) {
50                 v->raw = 0;
51                 return -1;
52         }
53
54         return result;
55 }
56 EXPORT_SYMBOL_GPL(ps3_get_firmware_version);
57
58 static void ps3_power_save(void)
59 {
60         /*
61          * lv1_pause() puts the PPE thread into inactive state until an
62          * irq on an unmasked plug exists. MSR[EE] has no effect.
63          * flags: 0 = wake on DEC interrupt, 1 = ignore DEC interrupt.
64          */
65
66         lv1_pause(0);
67 }
68
69 static void ps3_panic(char *str)
70 {
71         DBG("%s:%d %s\n", __func__, __LINE__, str);
72
73 #ifdef CONFIG_SMP
74         smp_send_stop();
75 #endif
76         printk("\n");
77         printk("   System does not reboot automatically.\n");
78         printk("   Please press POWER button.\n");
79         printk("\n");
80
81         for (;;) ;
82 }
83
84
85 static void prealloc(struct ps3_prealloc *p)
86 {
87         if (!p->size)
88                 return;
89
90         p->address = __alloc_bootmem(p->size, p->align, __pa(MAX_DMA_ADDRESS));
91         if (!p->address) {
92                 printk(KERN_ERR "%s: Cannot allocate %s\n", __FUNCTION__,
93                        p->name);
94                 return;
95         }
96
97         printk(KERN_INFO "%s: %lu bytes at %p\n", p->name, p->size,
98                p->address);
99 }
100
101 #ifdef CONFIG_FB_PS3
102 struct ps3_prealloc ps3fb_videomemory = {
103     .name = "ps3fb videomemory",
104     .size = CONFIG_FB_PS3_DEFAULT_SIZE_M*1024*1024,
105     .align = 1024*1024                  /* the GPU requires 1 MiB alignment */
106 };
107 #define prealloc_ps3fb_videomemory()    prealloc(&ps3fb_videomemory)
108
109 static int __init early_parse_ps3fb(char *p)
110 {
111         if (!p)
112                 return 1;
113
114         ps3fb_videomemory.size = _ALIGN_UP(memparse(p, &p),
115                                            ps3fb_videomemory.align);
116         return 0;
117 }
118 early_param("ps3fb", early_parse_ps3fb);
119 #else
120 #define prealloc_ps3fb_videomemory()    do { } while (0)
121 #endif
122
123
124 static void __init ps3_setup_arch(void)
125 {
126         union ps3_firmware_version v;
127
128         DBG(" -> %s:%d\n", __func__, __LINE__);
129
130         ps3_get_firmware_version(&v);
131         printk(KERN_INFO "PS3 firmware version %u.%u.%u\n", v.major, v.minor,
132                 v.rev);
133
134         ps3_spu_set_platform();
135         ps3_map_htab();
136
137 #ifdef CONFIG_SMP
138         smp_init_ps3();
139 #endif
140
141 #ifdef CONFIG_DUMMY_CONSOLE
142         conswitchp = &dummy_con;
143 #endif
144
145         prealloc_ps3fb_videomemory();
146         ppc_md.power_save = ps3_power_save;
147
148         DBG(" <- %s:%d\n", __func__, __LINE__);
149 }
150
151 static void __init ps3_progress(char *s, unsigned short hex)
152 {
153         printk("*** %04x : %s\n", hex, s ? s : "");
154 }
155
156 static int __init ps3_probe(void)
157 {
158         unsigned long htab_size;
159         unsigned long dt_root;
160
161         DBG(" -> %s:%d\n", __func__, __LINE__);
162
163         dt_root = of_get_flat_dt_root();
164         if (!of_flat_dt_is_compatible(dt_root, "PS3"))
165                 return 0;
166
167         powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE;
168
169         ps3_os_area_init();
170         ps3_mm_init();
171         ps3_mm_vas_create(&htab_size);
172         ps3_hpte_init(htab_size);
173
174         DBG(" <- %s:%d\n", __func__, __LINE__);
175         return 1;
176 }
177
178 #if defined(CONFIG_KEXEC)
179 static void ps3_kexec_cpu_down(int crash_shutdown, int secondary)
180 {
181         DBG(" -> %s:%d\n", __func__, __LINE__);
182
183         if (secondary) {
184                 int cpu;
185                 for_each_online_cpu(cpu)
186                         if (cpu)
187                                 ps3_smp_cleanup_cpu(cpu);
188         } else
189                 ps3_smp_cleanup_cpu(0);
190
191         DBG(" <- %s:%d\n", __func__, __LINE__);
192 }
193
194 static void ps3_machine_kexec(struct kimage *image)
195 {
196         unsigned long ppe_id;
197
198         DBG(" -> %s:%d\n", __func__, __LINE__);
199
200         lv1_get_logical_ppe_id(&ppe_id);
201         lv1_configure_irq_state_bitmap(ppe_id, 0, 0);
202         ps3_mm_shutdown();
203         ps3_mm_vas_destroy();
204
205         default_machine_kexec(image);
206
207         DBG(" <- %s:%d\n", __func__, __LINE__);
208 }
209 #endif
210
211 define_machine(ps3) {
212         .name                           = "PS3",
213         .probe                          = ps3_probe,
214         .setup_arch                     = ps3_setup_arch,
215         .init_IRQ                       = ps3_init_IRQ,
216         .panic                          = ps3_panic,
217         .get_boot_time                  = ps3_get_boot_time,
218         .set_rtc_time                   = ps3_set_rtc_time,
219         .get_rtc_time                   = ps3_get_rtc_time,
220         .calibrate_decr                 = ps3_calibrate_decr,
221         .progress                       = ps3_progress,
222 #if defined(CONFIG_KEXEC)
223         .kexec_cpu_down                 = ps3_kexec_cpu_down,
224         .machine_kexec                  = ps3_machine_kexec,
225         .machine_kexec_prepare          = default_machine_kexec_prepare,
226         .machine_crash_shutdown         = default_machine_crash_shutdown,
227 #endif
228 };