diff options
Diffstat (limited to 'kernel/arch/powerpc/platforms/ps3/setup.c')
| -rw-r--r-- | kernel/arch/powerpc/platforms/ps3/setup.c | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/kernel/arch/powerpc/platforms/ps3/setup.c b/kernel/arch/powerpc/platforms/ps3/setup.c new file mode 100644 index 000000000..799c8580a --- /dev/null +++ b/kernel/arch/powerpc/platforms/ps3/setup.c @@ -0,0 +1,281 @@ +/* + * 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/export.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 = memblock_virt_alloc(p->size, p->align); + + 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, unsigned long dabrx) +{ + /* Have to set at least one bit in the DABRX */ + if (dabrx == 0 && dabr == 0) + dabrx = DABRX_USER; + /* hypervisor only allows us to set BTI, Kernel and user */ + dabrx &= DABRX_BTI | DABRX_KERNEL | DABRX_USER; + + return lv1_set_dabr(dabr, dabrx) ? -1 : 0; +} + +static void __init ps3_setup_arch(void) +{ + u64 tmp; + + DBG(" -> %s:%d\n", __func__, __LINE__); + + lv1_get_version_info(&ps3_firmware_version.raw, &tmp); + + 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); + pm_power_off = ps3_power_off; + + 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, + .halt = ps3_halt, +#if defined(CONFIG_KEXEC) + .kexec_cpu_down = ps3_kexec_cpu_down, +#endif +}; |