1 // SPDX-License-Identifier: GPL-2.0-only
3 * PS3 platform setup routines.
5 * Copyright (C) 2006 Sony Computer Entertainment Inc.
6 * Copyright 2006 Sony Corp.
9 #include <linux/kernel.h>
10 #include <linux/delay.h>
12 #include <linux/root_dev.h>
13 #include <linux/console.h>
14 #include <linux/export.h>
15 #include <linux/memblock.h>
17 #include <asm/machdep.h>
18 #include <asm/firmware.h>
20 #include <asm/iommu.h>
23 #include <asm/lv1call.h>
24 #include <asm/ps3gpu.h>
29 #define DBG udbg_printf
34 /* mutex synchronizing GPU accesses and video mode changes */
35 DEFINE_MUTEX(ps3_gpu_mutex);
36 EXPORT_SYMBOL_GPL(ps3_gpu_mutex);
38 static union ps3_firmware_version ps3_firmware_version;
40 void ps3_get_firmware_version(union ps3_firmware_version *v)
42 *v = ps3_firmware_version;
44 EXPORT_SYMBOL_GPL(ps3_get_firmware_version);
46 int ps3_compare_firmware_version(u16 major, u16 minor, u16 rev)
48 union ps3_firmware_version x;
55 return (ps3_firmware_version.raw > x.raw) -
56 (ps3_firmware_version.raw < x.raw);
58 EXPORT_SYMBOL_GPL(ps3_compare_firmware_version);
60 static void ps3_power_save(void)
63 * lv1_pause() puts the PPE thread into inactive state until an
64 * irq on an unmasked plug exists. MSR[EE] has no effect.
65 * flags: 0 = wake on DEC interrupt, 1 = ignore DEC interrupt.
71 static void __noreturn ps3_restart(char *cmd)
73 DBG("%s:%d cmd '%s'\n", __func__, __LINE__, cmd);
76 ps3_sys_manager_restart(); /* never returns */
79 static void ps3_power_off(void)
81 DBG("%s:%d\n", __func__, __LINE__);
84 ps3_sys_manager_power_off(); /* never returns */
87 static void __noreturn ps3_halt(void)
89 DBG("%s:%d\n", __func__, __LINE__);
92 ps3_sys_manager_halt(); /* never returns */
95 static void ps3_panic(char *str)
97 DBG("%s:%d %s\n", __func__, __LINE__, str);
101 printk(" System does not reboot automatically.\n");
102 printk(" Please press POWER button.\n");
104 panic_flush_kmsg_end();
110 #if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) || \
111 defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
112 static void __init prealloc(struct ps3_prealloc *p)
117 p->address = memblock_alloc(p->size, p->align);
119 panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
120 __func__, p->size, p->align);
122 printk(KERN_INFO "%s: %lu bytes at %p\n", p->name, p->size,
127 #if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE)
128 struct ps3_prealloc ps3fb_videomemory = {
129 .name = "ps3fb videomemory",
130 .size = CONFIG_FB_PS3_DEFAULT_SIZE_M*1024*1024,
131 .align = 1024*1024 /* the GPU requires 1 MiB alignment */
133 EXPORT_SYMBOL_GPL(ps3fb_videomemory);
134 #define prealloc_ps3fb_videomemory() prealloc(&ps3fb_videomemory)
136 static int __init early_parse_ps3fb(char *p)
141 ps3fb_videomemory.size = _ALIGN_UP(memparse(p, &p),
142 ps3fb_videomemory.align);
145 early_param("ps3fb", early_parse_ps3fb);
147 #define prealloc_ps3fb_videomemory() do { } while (0)
150 #if defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE)
151 struct ps3_prealloc ps3flash_bounce_buffer = {
152 .name = "ps3flash bounce buffer",
156 EXPORT_SYMBOL_GPL(ps3flash_bounce_buffer);
157 #define prealloc_ps3flash_bounce_buffer() prealloc(&ps3flash_bounce_buffer)
159 static int __init early_parse_ps3flash(char *p)
164 if (!strcmp(p, "off"))
165 ps3flash_bounce_buffer.size = 0;
169 early_param("ps3flash", early_parse_ps3flash);
171 #define prealloc_ps3flash_bounce_buffer() do { } while (0)
174 static int ps3_set_dabr(unsigned long dabr, unsigned long dabrx)
176 /* Have to set at least one bit in the DABRX */
177 if (dabrx == 0 && dabr == 0)
179 /* hypervisor only allows us to set BTI, Kernel and user */
180 dabrx &= DABRX_BTI | DABRX_KERNEL | DABRX_USER;
182 return lv1_set_dabr(dabr, dabrx) ? -1 : 0;
185 static void __init ps3_setup_arch(void)
189 DBG(" -> %s:%d\n", __func__, __LINE__);
191 lv1_get_version_info(&ps3_firmware_version.raw, &tmp);
193 printk(KERN_INFO "PS3 firmware version %u.%u.%u\n",
194 ps3_firmware_version.major, ps3_firmware_version.minor,
195 ps3_firmware_version.rev);
197 ps3_spu_set_platform();
203 #ifdef CONFIG_DUMMY_CONSOLE
204 conswitchp = &dummy_con;
207 prealloc_ps3fb_videomemory();
208 prealloc_ps3flash_bounce_buffer();
210 ppc_md.power_save = ps3_power_save;
213 DBG(" <- %s:%d\n", __func__, __LINE__);
216 static void __init ps3_progress(char *s, unsigned short hex)
218 printk("*** %04x : %s\n", hex, s ? s : "");
221 void __init ps3_early_mm_init(void)
223 unsigned long htab_size;
226 ps3_mm_vas_create(&htab_size);
227 ps3_hpte_init(htab_size);
230 static int __init ps3_probe(void)
232 DBG(" -> %s:%d\n", __func__, __LINE__);
234 if (!of_machine_is_compatible("sony,ps3"))
237 ps3_os_area_save_params();
239 pm_power_off = ps3_power_off;
241 DBG(" <- %s:%d\n", __func__, __LINE__);
245 #if defined(CONFIG_KEXEC_CORE)
246 static void ps3_kexec_cpu_down(int crash_shutdown, int secondary)
248 int cpu = smp_processor_id();
250 DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu);
252 ps3_smp_cleanup_cpu(cpu);
253 ps3_shutdown_IRQ(cpu);
255 DBG(" <- %s:%d\n", __func__, __LINE__);
259 define_machine(ps3) {
262 .setup_arch = ps3_setup_arch,
263 .init_IRQ = ps3_init_IRQ,
265 .get_boot_time = ps3_get_boot_time,
266 .set_dabr = ps3_set_dabr,
267 .calibrate_decr = ps3_calibrate_decr,
268 .progress = ps3_progress,
269 .restart = ps3_restart,
271 #if defined(CONFIG_KEXEC_CORE)
272 .kexec_cpu_down = ps3_kexec_cpu_down,