powerpc/ps3: Fix build error on UP
[deliverable/linux.git] / arch / powerpc / platforms / ps3 / setup.c
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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>
fbdb3e5b 26#include <linux/bootmem.h>
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27
28#include <asm/machdep.h>
29#include <asm/firmware.h>
30#include <asm/time.h>
31#include <asm/iommu.h>
32#include <asm/udbg.h>
33#include <asm/prom.h>
34#include <asm/lv1call.h>
35
36#include "platform.h"
37
38#if defined(DEBUG)
83bb643d 39#define DBG udbg_printf
f58a9d17 40#else
83bb643d 41#define DBG pr_debug
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42#endif
43
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44/* mutex synchronizing GPU accesses and video mode changes */
45DEFINE_MUTEX(ps3_gpu_mutex);
46EXPORT_SYMBOL_GPL(ps3_gpu_mutex);
47
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48static union ps3_firmware_version ps3_firmware_version;
49
50void ps3_get_firmware_version(union ps3_firmware_version *v)
66b44954 51{
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52 *v = ps3_firmware_version;
53}
54EXPORT_SYMBOL_GPL(ps3_get_firmware_version);
66b44954 55
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56int ps3_compare_firmware_version(u16 major, u16 minor, u16 rev)
57{
58 union ps3_firmware_version x;
59
60 x.pad = 0;
61 x.major = major;
62 x.minor = minor;
63 x.rev = rev;
66b44954 64
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65 return (ps3_firmware_version.raw > x.raw) -
66 (ps3_firmware_version.raw < x.raw);
66b44954 67}
1322810c 68EXPORT_SYMBOL_GPL(ps3_compare_firmware_version);
66b44954 69
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70static void ps3_power_save(void)
71{
72 /*
73 * lv1_pause() puts the PPE thread into inactive state until an
74 * irq on an unmasked plug exists. MSR[EE] has no effect.
75 * flags: 0 = wake on DEC interrupt, 1 = ignore DEC interrupt.
76 */
77
78 lv1_pause(0);
79}
80
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81static void ps3_restart(char *cmd)
82{
83 DBG("%s:%d cmd '%s'\n", __func__, __LINE__, cmd);
84
85 smp_send_stop();
86 ps3_sys_manager_restart(); /* never returns */
87}
88
89static void ps3_power_off(void)
90{
91 DBG("%s:%d\n", __func__, __LINE__);
92
93 smp_send_stop();
94 ps3_sys_manager_power_off(); /* never returns */
95}
96
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97static void ps3_halt(void)
98{
99 DBG("%s:%d\n", __func__, __LINE__);
100
101 smp_send_stop();
102 ps3_sys_manager_halt(); /* never returns */
103}
104
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105static void ps3_panic(char *str)
106{
107 DBG("%s:%d %s\n", __func__, __LINE__, str);
108
f58a9d17 109 smp_send_stop();
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110 printk("\n");
111 printk(" System does not reboot automatically.\n");
112 printk(" Please press POWER button.\n");
113 printk("\n");
114
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115 while(1)
116 lv1_pause(1);
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117}
118
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119#if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) || \
120 defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
cba684f5 121static void __init prealloc(struct ps3_prealloc *p)
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122{
123 if (!p->size)
124 return;
125
126 p->address = __alloc_bootmem(p->size, p->align, __pa(MAX_DMA_ADDRESS));
127 if (!p->address) {
e48b1b45 128 printk(KERN_ERR "%s: Cannot allocate %s\n", __func__,
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129 p->name);
130 return;
131 }
132
133 printk(KERN_INFO "%s: %lu bytes at %p\n", p->name, p->size,
134 p->address);
135}
32d73318 136#endif
fbdb3e5b 137
32d73318 138#if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE)
fbdb3e5b 139struct ps3_prealloc ps3fb_videomemory = {
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140 .name = "ps3fb videomemory",
141 .size = CONFIG_FB_PS3_DEFAULT_SIZE_M*1024*1024,
142 .align = 1024*1024 /* the GPU requires 1 MiB alignment */
fbdb3e5b 143};
9e6b99bd 144EXPORT_SYMBOL_GPL(ps3fb_videomemory);
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145#define prealloc_ps3fb_videomemory() prealloc(&ps3fb_videomemory)
146
147static int __init early_parse_ps3fb(char *p)
148{
149 if (!p)
150 return 1;
151
152 ps3fb_videomemory.size = _ALIGN_UP(memparse(p, &p),
153 ps3fb_videomemory.align);
154 return 0;
155}
156early_param("ps3fb", early_parse_ps3fb);
157#else
158#define prealloc_ps3fb_videomemory() do { } while (0)
159#endif
160
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161#if defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
162struct ps3_prealloc ps3flash_bounce_buffer = {
163 .name = "ps3flash bounce buffer",
164 .size = 256*1024,
165 .align = 256*1024
166};
167EXPORT_SYMBOL_GPL(ps3flash_bounce_buffer);
168#define prealloc_ps3flash_bounce_buffer() prealloc(&ps3flash_bounce_buffer)
169
170static int __init early_parse_ps3flash(char *p)
171{
172 if (!p)
173 return 1;
174
175 if (!strcmp(p, "off"))
176 ps3flash_bounce_buffer.size = 0;
177
178 return 0;
179}
180early_param("ps3flash", early_parse_ps3flash);
181#else
182#define prealloc_ps3flash_bounce_buffer() do { } while (0)
183#endif
184
c52fe6b6 185static int ps3_set_dabr(unsigned long dabr)
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186{
187 enum {DABR_USER = 1, DABR_KERNEL = 2,};
188
189 return lv1_set_dabr(dabr, DABR_KERNEL | DABR_USER) ? -1 : 0;
190}
fbdb3e5b 191
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192static void __init ps3_setup_arch(void)
193{
66b44954 194
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195 DBG(" -> %s:%d\n", __func__, __LINE__);
196
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197 lv1_get_version_info(&ps3_firmware_version.raw);
198 printk(KERN_INFO "PS3 firmware version %u.%u.%u\n",
199 ps3_firmware_version.major, ps3_firmware_version.minor,
200 ps3_firmware_version.rev);
66b44954 201
f58a9d17 202 ps3_spu_set_platform();
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203
204#ifdef CONFIG_SMP
205 smp_init_ps3();
206#endif
207
208#ifdef CONFIG_DUMMY_CONSOLE
209 conswitchp = &dummy_con;
210#endif
211
fbdb3e5b 212 prealloc_ps3fb_videomemory();
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213 prealloc_ps3flash_bounce_buffer();
214
f58a9d17 215 ppc_md.power_save = ps3_power_save;
7db19421 216 ps3_os_area_init();
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217
218 DBG(" <- %s:%d\n", __func__, __LINE__);
219}
220
221static void __init ps3_progress(char *s, unsigned short hex)
222{
223 printk("*** %04x : %s\n", hex, s ? s : "");
224}
225
226static int __init ps3_probe(void)
227{
228 unsigned long htab_size;
229 unsigned long dt_root;
230
231 DBG(" -> %s:%d\n", __func__, __LINE__);
232
233 dt_root = of_get_flat_dt_root();
9065762e 234 if (!of_flat_dt_is_compatible(dt_root, "sony,ps3"))
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235 return 0;
236
e22ba7e3 237 powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE;
f58a9d17 238
01263e88 239 ps3_os_area_save_params();
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240 ps3_mm_init();
241 ps3_mm_vas_create(&htab_size);
242 ps3_hpte_init(htab_size);
243
244 DBG(" <- %s:%d\n", __func__, __LINE__);
245 return 1;
246}
247
248#if defined(CONFIG_KEXEC)
249static void ps3_kexec_cpu_down(int crash_shutdown, int secondary)
250{
9263e85a 251 int cpu = smp_processor_id();
f58a9d17 252
9263e85a 253 DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu);
f58a9d17 254
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255 ps3_smp_cleanup_cpu(cpu);
256 ps3_shutdown_IRQ(cpu);
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257
258 DBG(" <- %s:%d\n", __func__, __LINE__);
259}
260#endif
261
262define_machine(ps3) {
263 .name = "PS3",
264 .probe = ps3_probe,
265 .setup_arch = ps3_setup_arch,
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266 .init_IRQ = ps3_init_IRQ,
267 .panic = ps3_panic,
268 .get_boot_time = ps3_get_boot_time,
f0a1d024 269 .set_dabr = ps3_set_dabr,
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270 .calibrate_decr = ps3_calibrate_decr,
271 .progress = ps3_progress,
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272 .restart = ps3_restart,
273 .power_off = ps3_power_off,
ca052f79 274 .halt = ps3_halt,
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275#if defined(CONFIG_KEXEC)
276 .kexec_cpu_down = ps3_kexec_cpu_down,
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277#endif
278};
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