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Geoff Levandf58a9d12006-11-23 00:46:51 +01001/*
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>
Paul Gortmaker66b15db2011-05-27 10:46:24 -040026#include <linux/export.h>
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -080027#include <linux/bootmem.h>
Geoff Levandf58a9d12006-11-23 00:46:51 +010028
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>
Geert Uytterhoevend3352c92009-06-10 04:38:48 +000036#include <asm/ps3gpu.h>
Geoff Levandf58a9d12006-11-23 00:46:51 +010037
38#include "platform.h"
39
40#if defined(DEBUG)
Geert Uytterhoeven83bb6432007-06-16 07:19:23 +100041#define DBG udbg_printf
Geoff Levandf58a9d12006-11-23 00:46:51 +010042#else
Geert Uytterhoeven83bb6432007-06-16 07:19:23 +100043#define DBG pr_debug
Geoff Levandf58a9d12006-11-23 00:46:51 +010044#endif
45
Geert Uytterhoeven9b82f3e2008-10-30 08:12:58 +000046/* mutex synchronizing GPU accesses and video mode changes */
47DEFINE_MUTEX(ps3_gpu_mutex);
48EXPORT_SYMBOL_GPL(ps3_gpu_mutex);
49
Masakazu Mokuno13228102007-06-16 07:18:48 +100050static union ps3_firmware_version ps3_firmware_version;
51
52void ps3_get_firmware_version(union ps3_firmware_version *v)
Geoff Levand66b44952007-01-26 19:08:21 -080053{
Masakazu Mokuno13228102007-06-16 07:18:48 +100054 *v = ps3_firmware_version;
Geoff Levand66b44952007-01-26 19:08:21 -080055}
56EXPORT_SYMBOL_GPL(ps3_get_firmware_version);
57
Masakazu Mokuno13228102007-06-16 07:18:48 +100058int ps3_compare_firmware_version(u16 major, u16 minor, u16 rev)
59{
60 union ps3_firmware_version x;
61
62 x.pad = 0;
63 x.major = major;
64 x.minor = minor;
65 x.rev = rev;
66
Masakazu Mokunofc43dca2007-08-29 20:30:25 +090067 return (ps3_firmware_version.raw > x.raw) -
68 (ps3_firmware_version.raw < x.raw);
Masakazu Mokuno13228102007-06-16 07:18:48 +100069}
70EXPORT_SYMBOL_GPL(ps3_compare_firmware_version);
71
Geoff Levandf58a9d12006-11-23 00:46:51 +010072static void ps3_power_save(void)
73{
74 /*
75 * lv1_pause() puts the PPE thread into inactive state until an
76 * irq on an unmasked plug exists. MSR[EE] has no effect.
77 * flags: 0 = wake on DEC interrupt, 1 = ignore DEC interrupt.
78 */
79
80 lv1_pause(0);
81}
82
Geoff Levandfde5efd2007-02-07 12:20:01 -080083static void ps3_restart(char *cmd)
84{
85 DBG("%s:%d cmd '%s'\n", __func__, __LINE__, cmd);
86
87 smp_send_stop();
88 ps3_sys_manager_restart(); /* never returns */
89}
90
91static void ps3_power_off(void)
92{
93 DBG("%s:%d\n", __func__, __LINE__);
94
95 smp_send_stop();
96 ps3_sys_manager_power_off(); /* never returns */
97}
98
Geert Uytterhoevenca052f72008-03-27 11:38:31 +110099static void ps3_halt(void)
100{
101 DBG("%s:%d\n", __func__, __LINE__);
102
103 smp_send_stop();
104 ps3_sys_manager_halt(); /* never returns */
105}
106
Geoff Levandf58a9d12006-11-23 00:46:51 +0100107static void ps3_panic(char *str)
108{
109 DBG("%s:%d %s\n", __func__, __LINE__, str);
110
Geoff Levandf58a9d12006-11-23 00:46:51 +0100111 smp_send_stop();
Geoff Levandf58a9d12006-11-23 00:46:51 +0100112 printk("\n");
113 printk(" System does not reboot automatically.\n");
114 printk(" Please press POWER button.\n");
115 printk("\n");
116
Geert Uytterhoevenca052f72008-03-27 11:38:31 +1100117 while(1)
118 lv1_pause(1);
Geoff Levandf58a9d12006-11-23 00:46:51 +0100119}
120
Geert Uytterhoeven32d73312007-06-22 00:14:20 +1000121#if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) || \
122 defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
Stephen Rothwellcba684f2007-07-31 17:22:00 +1000123static void __init prealloc(struct ps3_prealloc *p)
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800124{
125 if (!p->size)
126 return;
127
128 p->address = __alloc_bootmem(p->size, p->align, __pa(MAX_DMA_ADDRESS));
129 if (!p->address) {
Harvey Harrisone48b1b42008-03-29 08:21:07 +1100130 printk(KERN_ERR "%s: Cannot allocate %s\n", __func__,
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800131 p->name);
132 return;
133 }
134
135 printk(KERN_INFO "%s: %lu bytes at %p\n", p->name, p->size,
136 p->address);
137}
Geert Uytterhoeven32d73312007-06-22 00:14:20 +1000138#endif
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800139
Geert Uytterhoeven32d73312007-06-22 00:14:20 +1000140#if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE)
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800141struct ps3_prealloc ps3fb_videomemory = {
Geert Uytterhoeven9e6b99b2007-06-16 08:05:38 +1000142 .name = "ps3fb videomemory",
143 .size = CONFIG_FB_PS3_DEFAULT_SIZE_M*1024*1024,
144 .align = 1024*1024 /* the GPU requires 1 MiB alignment */
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800145};
Geert Uytterhoeven9e6b99b2007-06-16 08:05:38 +1000146EXPORT_SYMBOL_GPL(ps3fb_videomemory);
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800147#define prealloc_ps3fb_videomemory() prealloc(&ps3fb_videomemory)
148
149static int __init early_parse_ps3fb(char *p)
150{
151 if (!p)
152 return 1;
153
154 ps3fb_videomemory.size = _ALIGN_UP(memparse(p, &p),
155 ps3fb_videomemory.align);
156 return 0;
157}
158early_param("ps3fb", early_parse_ps3fb);
159#else
160#define prealloc_ps3fb_videomemory() do { } while (0)
161#endif
162
Geert Uytterhoeven32d73312007-06-22 00:14:20 +1000163#if defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
164struct ps3_prealloc ps3flash_bounce_buffer = {
165 .name = "ps3flash bounce buffer",
166 .size = 256*1024,
167 .align = 256*1024
168};
169EXPORT_SYMBOL_GPL(ps3flash_bounce_buffer);
170#define prealloc_ps3flash_bounce_buffer() prealloc(&ps3flash_bounce_buffer)
171
172static int __init early_parse_ps3flash(char *p)
173{
174 if (!p)
175 return 1;
176
177 if (!strcmp(p, "off"))
178 ps3flash_bounce_buffer.size = 0;
179
180 return 0;
181}
182early_param("ps3flash", early_parse_ps3flash);
183#else
184#define prealloc_ps3flash_bounce_buffer() do { } while (0)
185#endif
186
Michael Neuling4474ef02012-09-06 21:24:56 +0000187static int ps3_set_dabr(unsigned long dabr, unsigned long dabrx)
Geoff Levandf0a1d022007-05-01 07:00:50 +1000188{
Michael Neuling4474ef02012-09-06 21:24:56 +0000189 /* Have to set at least one bit in the DABRX */
190 if (dabrx == 0 && dabr == 0)
191 dabrx = DABRX_USER;
192 /* hypervisor only allows us to set BTI, Kernel and user */
193 dabrx &= DABRX_BTI | DABRX_KERNEL | DABRX_USER;
Geoff Levandf0a1d022007-05-01 07:00:50 +1000194
Michael Neuling4474ef02012-09-06 21:24:56 +0000195 return lv1_set_dabr(dabr, dabrx) ? -1 : 0;
Geoff Levandf0a1d022007-05-01 07:00:50 +1000196}
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800197
Geoff Levandf58a9d12006-11-23 00:46:51 +0100198static void __init ps3_setup_arch(void)
199{
Geoff Levand816cb492011-11-29 15:38:50 +0000200 u64 tmp;
Geoff Levand66b44952007-01-26 19:08:21 -0800201
Geoff Levandf58a9d12006-11-23 00:46:51 +0100202 DBG(" -> %s:%d\n", __func__, __LINE__);
203
Geoff Levand816cb492011-11-29 15:38:50 +0000204 lv1_get_version_info(&ps3_firmware_version.raw, &tmp);
205
Masakazu Mokuno13228102007-06-16 07:18:48 +1000206 printk(KERN_INFO "PS3 firmware version %u.%u.%u\n",
207 ps3_firmware_version.major, ps3_firmware_version.minor,
208 ps3_firmware_version.rev);
Geoff Levand66b44952007-01-26 19:08:21 -0800209
Geoff Levandf58a9d12006-11-23 00:46:51 +0100210 ps3_spu_set_platform();
Geoff Levandf58a9d12006-11-23 00:46:51 +0100211
212#ifdef CONFIG_SMP
213 smp_init_ps3();
214#endif
215
216#ifdef CONFIG_DUMMY_CONSOLE
217 conswitchp = &dummy_con;
218#endif
219
Geert Uytterhoevenfbdb3e5b2007-02-12 00:55:22 -0800220 prealloc_ps3fb_videomemory();
Geert Uytterhoeven32d73312007-06-22 00:14:20 +1000221 prealloc_ps3flash_bounce_buffer();
222
Geoff Levandf58a9d12006-11-23 00:46:51 +0100223 ppc_md.power_save = ps3_power_save;
Geoff Levand7db19422007-10-07 07:35:47 +1000224 ps3_os_area_init();
Geoff Levandf58a9d12006-11-23 00:46:51 +0100225
226 DBG(" <- %s:%d\n", __func__, __LINE__);
227}
228
229static void __init ps3_progress(char *s, unsigned short hex)
230{
231 printk("*** %04x : %s\n", hex, s ? s : "");
232}
233
234static int __init ps3_probe(void)
235{
236 unsigned long htab_size;
237 unsigned long dt_root;
238
239 DBG(" -> %s:%d\n", __func__, __LINE__);
240
241 dt_root = of_get_flat_dt_root();
Geoff Levand90657622007-06-16 08:06:51 +1000242 if (!of_flat_dt_is_compatible(dt_root, "sony,ps3"))
Geoff Levandf58a9d12006-11-23 00:46:51 +0100243 return 0;
244
Arnd Bergmanne22ba7e2006-11-27 19:18:57 +0100245 powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE;
Geoff Levandf58a9d12006-11-23 00:46:51 +0100246
Geoff Levand01263e82007-10-07 07:35:44 +1000247 ps3_os_area_save_params();
Geoff Levandf58a9d12006-11-23 00:46:51 +0100248 ps3_mm_init();
249 ps3_mm_vas_create(&htab_size);
250 ps3_hpte_init(htab_size);
251
252 DBG(" <- %s:%d\n", __func__, __LINE__);
253 return 1;
254}
255
256#if defined(CONFIG_KEXEC)
257static void ps3_kexec_cpu_down(int crash_shutdown, int secondary)
258{
Geoff Levand9263e852007-06-16 07:19:32 +1000259 int cpu = smp_processor_id();
Geoff Levandf58a9d12006-11-23 00:46:51 +0100260
Geoff Levand9263e852007-06-16 07:19:32 +1000261 DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu);
Geoff Levandf58a9d12006-11-23 00:46:51 +0100262
Geoff Levand9263e852007-06-16 07:19:32 +1000263 ps3_smp_cleanup_cpu(cpu);
264 ps3_shutdown_IRQ(cpu);
Geoff Levandf58a9d12006-11-23 00:46:51 +0100265
266 DBG(" <- %s:%d\n", __func__, __LINE__);
267}
268#endif
269
270define_machine(ps3) {
271 .name = "PS3",
272 .probe = ps3_probe,
273 .setup_arch = ps3_setup_arch,
Geoff Levandf58a9d12006-11-23 00:46:51 +0100274 .init_IRQ = ps3_init_IRQ,
275 .panic = ps3_panic,
276 .get_boot_time = ps3_get_boot_time,
Geoff Levandf0a1d022007-05-01 07:00:50 +1000277 .set_dabr = ps3_set_dabr,
Geoff Levandf58a9d12006-11-23 00:46:51 +0100278 .calibrate_decr = ps3_calibrate_decr,
279 .progress = ps3_progress,
Geoff Levandfde5efd2007-02-07 12:20:01 -0800280 .restart = ps3_restart,
281 .power_off = ps3_power_off,
Geert Uytterhoevenca052f72008-03-27 11:38:31 +1100282 .halt = ps3_halt,
Geoff Levandf58a9d12006-11-23 00:46:51 +0100283#if defined(CONFIG_KEXEC)
284 .kexec_cpu_down = ps3_kexec_cpu_down,
Geoff Levandf58a9d12006-11-23 00:46:51 +0100285#endif
286};