/* * PS3 platform setup routines. * * Copyright (C) 2006 Sony Computer Entertainment Inc. * Copyright 2006 Sony Corp. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/kernel.h> #include <linux/delay.h> #include <linux/fs.h> #include <linux/root_dev.h> #include <linux/console.h> #include <linux/bootmem.h> #include <asm/machdep.h> #include <asm/firmware.h> #include <asm/time.h> #include <asm/iommu.h> #include <asm/udbg.h> #include <asm/prom.h> #include <asm/lv1call.h> #include <asm/ps3gpu.h> #include "platform.h" #if defined(DEBUG) #define DBG udbg_printf #else #define DBG pr_debug #endif /* mutex synchronizing GPU accesses and video mode changes */ DEFINE_MUTEX(ps3_gpu_mutex); EXPORT_SYMBOL_GPL(ps3_gpu_mutex); static union ps3_firmware_version ps3_firmware_version; void ps3_get_firmware_version(union ps3_firmware_version *v) { *v = ps3_firmware_version; } EXPORT_SYMBOL_GPL(ps3_get_firmware_version); int ps3_compare_firmware_version(u16 major, u16 minor, u16 rev) { union ps3_firmware_version x; x.pad = 0; x.major = major; x.minor = minor; x.rev = rev; return (ps3_firmware_version.raw > x.raw) - (ps3_firmware_version.raw < x.raw); } EXPORT_SYMBOL_GPL(ps3_compare_firmware_version); static void ps3_power_save(void) { /* * lv1_pause() puts the PPE thread into inactive state until an * irq on an unmasked plug exists. MSR[EE] has no effect. * flags: 0 = wake on DEC interrupt, 1 = ignore DEC interrupt. */ lv1_pause(0); } static void ps3_restart(char *cmd) { DBG("%s:%d cmd '%s'\n", __func__, __LINE__, cmd); smp_send_stop(); ps3_sys_manager_restart(); /* never returns */ } static void ps3_power_off(void) { DBG("%s:%d\n", __func__, __LINE__); smp_send_stop(); ps3_sys_manager_power_off(); /* never returns */ } static void ps3_halt(void) { DBG("%s:%d\n", __func__, __LINE__); smp_send_stop(); ps3_sys_manager_halt(); /* never returns */ } static void ps3_panic(char *str) { DBG("%s:%d %s\n", __func__, __LINE__, str); smp_send_stop(); printk("\n"); printk(" System does not reboot automatically.\n"); printk(" Please press POWER button.\n"); printk("\n"); while(1) lv1_pause(1); } #if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) || \ defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE) static void __init prealloc(struct ps3_prealloc *p) { if (!p->size) return; p->address = __alloc_bootmem(p->size, p->align, __pa(MAX_DMA_ADDRESS)); if (!p->address) { printk(KERN_ERR "%s: Cannot allocate %s\n", __func__, p->name); return; } printk(KERN_INFO "%s: %lu bytes at %p\n", p->name, p->size, p->address); } #endif #if defined(CONFIG_FB_PS3) || defined(CONFIG_FB_PS3_MODULE) struct ps3_prealloc ps3fb_videomemory = { .name = "ps3fb videomemory", .size = CONFIG_FB_PS3_DEFAULT_SIZE_M*1024*1024, .align = 1024*1024 /* the GPU requires 1 MiB alignment */ }; EXPORT_SYMBOL_GPL(ps3fb_videomemory); #define prealloc_ps3fb_videomemory() prealloc(&ps3fb_videomemory) static int __init early_parse_ps3fb(char *p) { if (!p) return 1; ps3fb_videomemory.size = _ALIGN_UP(memparse(p, &p), ps3fb_videomemory.align); return 0; } early_param("ps3fb", early_parse_ps3fb); #else #define prealloc_ps3fb_videomemory() do { } while (0) #endif #if defined(CONFIG_PS3_FLASH) || defined(CONFIG_PS3_FLASH_MODULE) struct ps3_prealloc ps3flash_bounce_buffer = { .name = "ps3flash bounce buffer", .size = 256*1024, .align = 256*1024 }; EXPORT_SYMBOL_GPL(ps3flash_bounce_buffer); #define prealloc_ps3flash_bounce_buffer() prealloc(&ps3flash_bounce_buffer) static int __init early_parse_ps3flash(char *p) { if (!p) return 1; if (!strcmp(p, "off")) ps3flash_bounce_buffer.size = 0; return 0; } early_param("ps3flash", early_parse_ps3flash); #else #define prealloc_ps3flash_bounce_buffer() do { } while (0) #endif static int ps3_set_dabr(unsigned long dabr) { enum {DABR_USER = 1, DABR_KERNEL = 2,}; return lv1_set_dabr(dabr, DABR_KERNEL | DABR_USER) ? -1 : 0; } static void __init ps3_setup_arch(void) { DBG(" -> %s:%d\n", __func__, __LINE__); lv1_get_version_info(&ps3_firmware_version.raw); printk(KERN_INFO "PS3 firmware version %u.%u.%u\n", ps3_firmware_version.major, ps3_firmware_version.minor, ps3_firmware_version.rev); ps3_spu_set_platform(); #ifdef CONFIG_SMP smp_init_ps3(); #endif #ifdef CONFIG_DUMMY_CONSOLE conswitchp = &dummy_con; #endif prealloc_ps3fb_videomemory(); prealloc_ps3flash_bounce_buffer(); ppc_md.power_save = ps3_power_save; ps3_os_area_init(); DBG(" <- %s:%d\n", __func__, __LINE__); } static void __init ps3_progress(char *s, unsigned short hex) { printk("*** %04x : %s\n", hex, s ? s : ""); } static int __init ps3_probe(void) { unsigned long htab_size; unsigned long dt_root; DBG(" -> %s:%d\n", __func__, __LINE__); dt_root = of_get_flat_dt_root(); if (!of_flat_dt_is_compatible(dt_root, "sony,ps3")) return 0; powerpc_firmware_features |= FW_FEATURE_PS3_POSSIBLE; ps3_os_area_save_params(); ps3_mm_init(); ps3_mm_vas_create(&htab_size); ps3_hpte_init(htab_size); DBG(" <- %s:%d\n", __func__, __LINE__); return 1; } #if defined(CONFIG_KEXEC) static void ps3_kexec_cpu_down(int crash_shutdown, int secondary) { int cpu = smp_processor_id(); DBG(" -> %s:%d: (%d)\n", __func__, __LINE__, cpu); ps3_smp_cleanup_cpu(cpu); ps3_shutdown_IRQ(cpu); DBG(" <- %s:%d\n", __func__, __LINE__); } #endif define_machine(ps3) { .name = "PS3", .probe = ps3_probe, .setup_arch = ps3_setup_arch, .init_IRQ = ps3_init_IRQ, .panic = ps3_panic, .get_boot_time = ps3_get_boot_time, .set_dabr = ps3_set_dabr, .calibrate_decr = ps3_calibrate_decr, .progress = ps3_progress, .restart = ps3_restart, .power_off = ps3_power_off, .halt = ps3_halt, #if defined(CONFIG_KEXEC) .kexec_cpu_down = ps3_kexec_cpu_down, #endif };