[mirror_ubuntu-artful-kernel.git] / arch / sparc64 / kernel / setup.c

/*  $Id: setup.c,v 1.72 2002/02/09 19:49:30 davem Exp $
 *  linux/arch/sparc64/kernel/setup.c
 *
 *  Copyright (C) 1995,1996  David S. Miller (davem@caip.rutgers.edu)
 *  Copyright (C) 1997       Jakub Jelinek (jj@sunsite.mff.cuni.cz)
 */

#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
#include <linux/unistd.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <asm/smp.h>
#include <linux/user.h>
#include <linux/a.out.h>
#include <linux/screen_info.h>
#include <linux/delay.h>
#include <linux/fs.h>
#include <linux/seq_file.h>
#include <linux/syscalls.h>
#include <linux/kdev_t.h>
#include <linux/major.h>
#include <linux/string.h>
#include <linux/init.h>
#include <linux/inet.h>
#include <linux/console.h>
#include <linux/root_dev.h>
#include <linux/interrupt.h>
#include <linux/cpu.h>
#include <linux/initrd.h>

#include <asm/system.h>
#include <asm/io.h>
#include <asm/processor.h>
#include <asm/oplib.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/idprom.h>
#include <asm/head.h>
#include <asm/starfire.h>
#include <asm/mmu_context.h>
#include <asm/timer.h>
#include <asm/sections.h>
#include <asm/setup.h>
#include <asm/mmu.h>
#include <asm/ns87303.h>

#ifdef CONFIG_IP_PNP
#include <net/ipconfig.h>
#endif

/* Used to synchronize accesses to NatSemi SUPER I/O chip configure
 * operations in asm/ns87303.h
 */
DEFINE_SPINLOCK(ns87303_lock);

struct screen_info screen_info = {
	0, 0,			/* orig-x, orig-y */
	0,			/* unused */
	0,			/* orig-video-page */
	0,			/* orig-video-mode */
	128,			/* orig-video-cols */
	0, 0, 0,		/* unused, ega_bx, unused */
	54,			/* orig-video-lines */
	0,                      /* orig-video-isVGA */
	16                      /* orig-video-points */
};

void (*prom_palette)(int);
void (*prom_keyboard)(void);

static void
prom_console_write(struct console *con, const char *s, unsigned n)
{
	prom_write(s, n);
}

unsigned int boot_flags = 0;
#define BOOTME_DEBUG  0x1

/* Exported for mm/init.c:paging_init. */
unsigned long cmdline_memory_size = 0;

static struct console prom_debug_console = {
	.name =		"debug",
	.write =	prom_console_write,
	.flags =	CON_PRINTBUFFER,
	.index =	-1,
};

/* XXX Implement this at some point... */
void kernel_enter_debugger(void)
{
}

/* 
 * Process kernel command line switches that are specific to the
 * SPARC or that require special low-level processing.
 */
static void __init process_switch(char c)
{
	switch (c) {
	case 'd':
		boot_flags |= BOOTME_DEBUG;
		break;
	case 's':
		break;
	case 'h':
		prom_printf("boot_flags_init: Halt!\n");
		prom_halt();
		break;
	case 'p':
		/* Use PROM debug console. */
		register_console(&prom_debug_console);
		break;
	case 'P':
		/* Force UltraSPARC-III P-Cache on. */
		if (tlb_type != cheetah) {
			printk("BOOT: Ignoring P-Cache force option.\n");
			break;
		}
		cheetah_pcache_forced_on = 1;
		add_taint(TAINT_MACHINE_CHECK);
		cheetah_enable_pcache();
		break;

	default:
		printk("Unknown boot switch (-%c)\n", c);
		break;
	}
}

static void __init process_console(char *commands)
{
	serial_console = 0;
	commands += 8;
	/* Linux-style serial */
	if (!strncmp(commands, "ttyS", 4))
		serial_console = simple_strtoul(commands + 4, NULL, 10) + 1;
	else if (!strncmp(commands, "tty", 3)) {
		char c = *(commands + 3);
		/* Solaris-style serial */
		if (c == 'a' || c == 'b') {
			serial_console = c - 'a' + 1;
			prom_printf ("Using /dev/tty%c as console.\n", c);
		}
		/* else Linux-style fbcon, not serial */
	}
#if defined(CONFIG_PROM_CONSOLE)
	if (!strncmp(commands, "prom", 4)) {
		char *p;

		for (p = commands - 8; *p && *p != ' '; p++)
			*p = ' ';
		conswitchp = &prom_con;
	}
#endif
}

static void __init boot_flags_init(char *commands)
{
	while (*commands) {
		/* Move to the start of the next "argument". */
		while (*commands && *commands == ' ')
			commands++;

		/* Process any command switches, otherwise skip it. */
		if (*commands == '\0')
			break;
		if (*commands == '-') {
			commands++;
			while (*commands && *commands != ' ')
				process_switch(*commands++);
			continue;
		}
		if (!strncmp(commands, "console=", 8)) {
			process_console(commands);
		} else if (!strncmp(commands, "mem=", 4)) {
			/*
			 * "mem=XXX[kKmM]" overrides the PROM-reported
			 * memory size.
			 */
			cmdline_memory_size = simple_strtoul(commands + 4,
							     &commands, 0);
			if (*commands == 'K' || *commands == 'k') {
				cmdline_memory_size <<= 10;
				commands++;
			} else if (*commands=='M' || *commands=='m') {
				cmdline_memory_size <<= 20;
				commands++;
			}
		}
		while (*commands && *commands != ' ')
			commands++;
	}
}

extern void panic_setup(char *, int *);

extern unsigned short root_flags;
extern unsigned short root_dev;
extern unsigned short ram_flags;
#define RAMDISK_IMAGE_START_MASK	0x07FF
#define RAMDISK_PROMPT_FLAG		0x8000
#define RAMDISK_LOAD_FLAG		0x4000

extern int root_mountflags;

char reboot_command[COMMAND_LINE_SIZE];

static struct pt_regs fake_swapper_regs = { { 0, }, 0, 0, 0, 0 };

void __init per_cpu_patch(void)
{
	struct cpuid_patch_entry *p;
	unsigned long ver;
	int is_jbus;

	if (tlb_type == spitfire && !this_is_starfire)
		return;

	is_jbus = 0;
	if (tlb_type != hypervisor) {
		__asm__ ("rdpr %%ver, %0" : "=r" (ver));
		is_jbus = ((ver >> 32UL) == __JALAPENO_ID ||
			   (ver >> 32UL) == __SERRANO_ID);
	}

	p = &__cpuid_patch;
	while (p < &__cpuid_patch_end) {
		unsigned long addr = p->addr;
		unsigned int *insns;

		switch (tlb_type) {
		case spitfire:
			insns = &p->starfire[0];
			break;
		case cheetah:
		case cheetah_plus:
			if (is_jbus)
				insns = &p->cheetah_jbus[0];
			else
				insns = &p->cheetah_safari[0];
			break;
		case hypervisor:
			insns = &p->sun4v[0];
			break;
		default:
			prom_printf("Unknown cpu type, halting.\n");
			prom_halt();
		};

		*(unsigned int *) (addr +  0) = insns[0];
		wmb();
		__asm__ __volatile__("flush	%0" : : "r" (addr +  0));

		*(unsigned int *) (addr +  4) = insns[1];
		wmb();
		__asm__ __volatile__("flush	%0" : : "r" (addr +  4));

		*(unsigned int *) (addr +  8) = insns[2];
		wmb();
		__asm__ __volatile__("flush	%0" : : "r" (addr +  8));

		*(unsigned int *) (addr + 12) = insns[3];
		wmb();
		__asm__ __volatile__("flush	%0" : : "r" (addr + 12));

		p++;
	}
}

void __init sun4v_patch(void)
{
	extern void sun4v_hvapi_init(void);
	struct sun4v_1insn_patch_entry *p1;
	struct sun4v_2insn_patch_entry *p2;

	if (tlb_type != hypervisor)
		return;

	p1 = &__sun4v_1insn_patch;
	while (p1 < &__sun4v_1insn_patch_end) {
		unsigned long addr = p1->addr;

		*(unsigned int *) (addr +  0) = p1->insn;
		wmb();
		__asm__ __volatile__("flush	%0" : : "r" (addr +  0));

		p1++;
	}

	p2 = &__sun4v_2insn_patch;
	while (p2 < &__sun4v_2insn_patch_end) {
		unsigned long addr = p2->addr;

		*(unsigned int *) (addr +  0) = p2->insns[0];
		wmb();
		__asm__ __volatile__("flush	%0" : : "r" (addr +  0));

		*(unsigned int *) (addr +  4) = p2->insns[1];
		wmb();
		__asm__ __volatile__("flush	%0" : : "r" (addr +  4));

		p2++;
	}

	sun4v_hvapi_init();
}

#ifdef CONFIG_SMP
void __init boot_cpu_id_too_large(int cpu)
{
	prom_printf("Serious problem, boot cpu id (%d) >= NR_CPUS (%d)\n",
		    cpu, NR_CPUS);
	prom_halt();
}
#endif

void __init setup_arch(char **cmdline_p)
{
	/* Initialize PROM console and command line. */
	*cmdline_p = prom_getbootargs();
	strcpy(boot_command_line, *cmdline_p);

	if (tlb_type == hypervisor)
		printk("ARCH: SUN4V\n");
	else
		printk("ARCH: SUN4U\n");

#ifdef CONFIG_DUMMY_CONSOLE
	conswitchp = &dummy_con;
#elif defined(CONFIG_PROM_CONSOLE)
	conswitchp = &prom_con;
#endif

	boot_flags_init(*cmdline_p);

	idprom_init();

	if (!root_flags)
		root_mountflags &= ~MS_RDONLY;
	ROOT_DEV = old_decode_dev(root_dev);
#ifdef CONFIG_BLK_DEV_RAM
	rd_image_start = ram_flags & RAMDISK_IMAGE_START_MASK;
	rd_prompt = ((ram_flags & RAMDISK_PROMPT_FLAG) != 0);
	rd_doload = ((ram_flags & RAMDISK_LOAD_FLAG) != 0);	
#endif

	task_thread_info(&init_task)->kregs = &fake_swapper_regs;

#ifdef CONFIG_IP_PNP
	if (!ic_set_manually) {
		int chosen = prom_finddevice ("/chosen");
		u32 cl, sv, gw;
		
		cl = prom_getintdefault (chosen, "client-ip", 0);
		sv = prom_getintdefault (chosen, "server-ip", 0);
		gw = prom_getintdefault (chosen, "gateway-ip", 0);
		if (cl && sv) {
			ic_myaddr = cl;
			ic_servaddr = sv;
			if (gw)
				ic_gateway = gw;
#if defined(CONFIG_IP_PNP_BOOTP) || defined(CONFIG_IP_PNP_RARP)
			ic_proto_enabled = 0;
#endif
		}
	}
#endif

	/* Get boot processor trap_block[] setup.  */
	init_cur_cpu_trap(current_thread_info());

	paging_init();
}

static int __init set_preferred_console(void)
{
	int idev, odev;

	/* The user has requested a console so this is already set up. */
	if (serial_console >= 0)
		return -EBUSY;

	idev = prom_query_input_device();
	odev = prom_query_output_device();
	if (idev == PROMDEV_IKBD && odev == PROMDEV_OSCREEN) {
		serial_console = 0;
	} else if (idev == PROMDEV_ITTYA && odev == PROMDEV_OTTYA) {
		serial_console = 1;
	} else if (idev == PROMDEV_ITTYB && odev == PROMDEV_OTTYB) {
		serial_console = 2;
	} else if (idev == PROMDEV_IRSC && odev == PROMDEV_ORSC) {
		serial_console = 3;
	} else if (idev == PROMDEV_IVCONS && odev == PROMDEV_OVCONS) {
		/* sunhv_console_init() doesn't check the serial_console
		 * value anyways...
		 */
		serial_console = 4;
		return add_preferred_console("ttyHV", 0, NULL);
	} else {
		prom_printf("Inconsistent console: "
			    "input %d, output %d\n",
			    idev, odev);
		prom_halt();
	}

	if (serial_console)
		return add_preferred_console("ttyS", serial_console - 1, NULL);

	return -ENODEV;
}
console_initcall(set_preferred_console);

/* BUFFER is PAGE_SIZE bytes long. */

extern char *sparc_cpu_type;
extern char *sparc_fpu_type;

extern void smp_info(struct seq_file *);
extern void smp_bogo(struct seq_file *);
extern void mmu_info(struct seq_file *);

unsigned int dcache_parity_tl1_occurred;
unsigned int icache_parity_tl1_occurred;

int ncpus_probed;

static int show_cpuinfo(struct seq_file *m, void *__unused)
{
	seq_printf(m, 
		   "cpu\t\t: %s\n"
		   "fpu\t\t: %s\n"
		   "prom\t\t: %s\n"
		   "type\t\t: %s\n"
		   "ncpus probed\t: %d\n"
		   "ncpus active\t: %d\n"
		   "D$ parity tl1\t: %u\n"
		   "I$ parity tl1\t: %u\n"
#ifndef CONFIG_SMP
		   "Cpu0ClkTck\t: %016lx\n"
#endif
		   ,
		   sparc_cpu_type,
		   sparc_fpu_type,
		   prom_version,
		   ((tlb_type == hypervisor) ?
		    "sun4v" :
		    "sun4u"),
		   ncpus_probed,
		   num_online_cpus(),
		   dcache_parity_tl1_occurred,
		   icache_parity_tl1_occurred,
#ifndef CONFIG_SMP
		   cpu_data(0).clock_tick
#endif
		);
#ifdef CONFIG_SMP
	smp_bogo(m);
#endif
	mmu_info(m);
#ifdef CONFIG_SMP
	smp_info(m);
#endif
	return 0;
}

static void *c_start(struct seq_file *m, loff_t *pos)
{
	/* The pointer we are returning is arbitrary,
	 * it just has to be non-NULL and not IS_ERR
	 * in the success case.
	 */
	return *pos == 0 ? &c_start : NULL;
}

static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
	++*pos;
	return c_start(m, pos);
}

static void c_stop(struct seq_file *m, void *v)
{
}

struct seq_operations cpuinfo_op = {
	.start =c_start,
	.next =	c_next,
	.stop =	c_stop,
	.show =	show_cpuinfo,
};

extern int stop_a_enabled;

void sun_do_break(void)
{
	if (!stop_a_enabled)
		return;

	prom_printf("\n");
	flush_user_windows();

	prom_cmdline();
}

int serial_console = -1;
int stop_a_enabled = 1;
Commit	Line	Data
1da177e4 LT	1	/* $Id: setup.c,v 1.72 2002/02/09 19:49:30 davem Exp $
	2	* linux/arch/sparc64/kernel/setup.c
	3	*
	4	* Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu)
	5	* Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
	6	*/
	7
	8	#include <linux/errno.h>
	9	#include <linux/sched.h>
	10	#include <linux/kernel.h>
	11	#include <linux/mm.h>
	12	#include <linux/stddef.h>
	13	#include <linux/unistd.h>
	14	#include <linux/ptrace.h>
	15	#include <linux/slab.h>
	16	#include <asm/smp.h>
	17	#include <linux/user.h>
	18	#include <linux/a.out.h>
894673ee	19	#include <linux/screen_info.h>
1da177e4	20	#include <linux/delay.h>
1da177e4 LT	21	#include <linux/fs.h>
	22	#include <linux/seq_file.h>
	23	#include <linux/syscalls.h>
	24	#include <linux/kdev_t.h>
	25	#include <linux/major.h>
	26	#include <linux/string.h>
	27	#include <linux/init.h>
	28	#include <linux/inet.h>
	29	#include <linux/console.h>
	30	#include <linux/root_dev.h>
	31	#include <linux/interrupt.h>
	32	#include <linux/cpu.h>
	33	#include <linux/initrd.h>
	34
1da177e4 LT	35	#include <asm/system.h>
	36	#include <asm/io.h>
	37	#include <asm/processor.h>
	38	#include <asm/oplib.h>
	39	#include <asm/page.h>
	40	#include <asm/pgtable.h>
	41	#include <asm/idprom.h>
	42	#include <asm/head.h>
	43	#include <asm/starfire.h>
	44	#include <asm/mmu_context.h>
	45	#include <asm/timer.h>
	46	#include <asm/sections.h>
	47	#include <asm/setup.h>
	48	#include <asm/mmu.h>
5cbc3073	49	#include <asm/ns87303.h>
1da177e4 LT	50
	51	#ifdef CONFIG_IP_PNP
	52	#include <net/ipconfig.h>
	53	#endif
	54
5cbc3073 DM	55	/* Used to synchronize accesses to NatSemi SUPER I/O chip configure
	56	* operations in asm/ns87303.h
	57	*/
	58	DEFINE_SPINLOCK(ns87303_lock);
	59
1da177e4 LT	60	struct screen_info screen_info = {
	61	0, 0, /* orig-x, orig-y */
	62	0, /* unused */
	63	0, /* orig-video-page */
	64	0, /* orig-video-mode */
	65	128, /* orig-video-cols */
	66	0, 0, 0, /* unused, ega_bx, unused */
	67	54, /* orig-video-lines */
	68	0, /* orig-video-isVGA */
	69	16 /* orig-video-points */
	70	};
	71
1da177e4 LT	72	void (*prom_palette)(int);
	73	void (*prom_keyboard)(void);
	74
	75	static void
	76	prom_console_write(struct console con, const char s, unsigned n)
	77	{
	78	prom_write(s, n);
	79	}
	80
1da177e4 LT	81	unsigned int boot_flags = 0;
1da177e4 LT	82	#define BOOTME_DEBUG 0x1
1da177e4 LT	83
	84	/* Exported for mm/init.c:paging_init. */
	85	unsigned long cmdline_memory_size = 0;
	86
	87	static struct console prom_debug_console = {
	88	.name = "debug",
	89	.write = prom_console_write,
	90	.flags = CON_PRINTBUFFER,
	91	.index = -1,
	92	};
	93
	94	/* XXX Implement this at some point... */
	95	void kernel_enter_debugger(void)
	96	{
	97	}
	98
1da177e4 LT	99	/*
	100	* Process kernel command line switches that are specific to the
	101	* SPARC or that require special low-level processing.
	102	*/
	103	static void __init process_switch(char c)
	104	{
	105	switch (c) {
	106	case 'd':
	107	boot_flags \|= BOOTME_DEBUG;
	108	break;
	109	case 's':
1da177e4 LT	110	break;
	111	case 'h':
	112	prom_printf("boot_flags_init: Halt!\n");
	113	prom_halt();
	114	break;
	115	case 'p':
	116	/* Use PROM debug console. */
	117	register_console(&prom_debug_console);
	118	break;
816242da DM	119	case 'P':
	120	/* Force UltraSPARC-III P-Cache on. */
	121	if (tlb_type != cheetah) {
	122	printk("BOOT: Ignoring P-Cache force option.\n");
	123	break;
	124	}
	125	cheetah_pcache_forced_on = 1;
	126	add_taint(TAINT_MACHINE_CHECK);
	127	cheetah_enable_pcache();
	128	break;
	129
1da177e4 LT	130	default:
	131	printk("Unknown boot switch (-%c)\n", c);
	132	break;
	133	}
	134	}
	135
	136	static void __init process_console(char *commands)
	137	{
	138	serial_console = 0;
	139	commands += 8;
	140	/* Linux-style serial */
	141	if (!strncmp(commands, "ttyS", 4))
	142	serial_console = simple_strtoul(commands + 4, NULL, 10) + 1;
	143	else if (!strncmp(commands, "tty", 3)) {
	144	char c = *(commands + 3);
	145	/* Solaris-style serial */
	146	if (c == 'a' \|\| c == 'b') {
	147	serial_console = c - 'a' + 1;
	148	prom_printf ("Using /dev/tty%c as console.\n", c);
	149	}
	150	/* else Linux-style fbcon, not serial */
	151	}
	152	#if defined(CONFIG_PROM_CONSOLE)
	153	if (!strncmp(commands, "prom", 4)) {
	154	char *p;
	155
	156	for (p = commands - 8; p && p != ' '; p++)
	157	*p = ' ';
	158	conswitchp = &prom_con;
	159	}
	160	#endif
	161	}
	162
	163	static void __init boot_flags_init(char *commands)
	164	{
	165	while (*commands) {
	166	/* Move to the start of the next "argument". */
	167	while (commands && commands == ' ')
	168	commands++;
	169
	170	/* Process any command switches, otherwise skip it. */
	171	if (*commands == '\0')
	172	break;
	173	if (*commands == '-') {
	174	commands++;
	175	while (commands && commands != ' ')
	176	process_switch(*commands++);
	177	continue;
	178	}
	179	if (!strncmp(commands, "console=", 8)) {
	180	process_console(commands);
	181	} else if (!strncmp(commands, "mem=", 4)) {
	182	/*
	183	* "mem=XXX[kKmM]" overrides the PROM-reported
	184	* memory size.
	185	*/
	186	cmdline_memory_size = simple_strtoul(commands + 4,
	187	&commands, 0);
	188	if (commands == 'K' \|\| commands == 'k') {
	189	cmdline_memory_size <<= 10;
	190	commands++;
	191	} else if (commands=='M' \|\| commands=='m') {
	192	cmdline_memory_size <<= 20;
	193	commands++;
194	}
195	}
196	while (commands && commands != ' ')
197	commands++;
198	}
199	}
200
1da177e4 LT	201	extern void panic_setup(char , int );
	202
	203	extern unsigned short root_flags;
	204	extern unsigned short root_dev;
	205	extern unsigned short ram_flags;
	206	#define RAMDISK_IMAGE_START_MASK 0x07FF
	207	#define RAMDISK_PROMPT_FLAG 0x8000
	208	#define RAMDISK_LOAD_FLAG 0x4000
	209
	210	extern int root_mountflags;
	211
	212	char reboot_command[COMMAND_LINE_SIZE];
	213
	214	static struct pt_regs fake_swapper_regs = { { 0, }, 0, 0, 0, 0 };
	215
951bc82c	216	void __init per_cpu_patch(void)
92704a1c	217	{
92704a1c DM	218	struct cpuid_patch_entry *p;
	219	unsigned long ver;
	220	int is_jbus;
	221
	222	if (tlb_type == spitfire && !this_is_starfire)
	223	return;
	224
d82ace7d DM	225	is_jbus = 0;
	226	if (tlb_type != hypervisor) {
	227	__asm__ ("rdpr %%ver, %0" : "=r" (ver));
ebd8c56c DM	228	is_jbus = ((ver >> 32UL) == __JALAPENO_ID \|\|
ebd8c56c DM	229	(ver >> 32UL) == __SERRANO_ID);
d82ace7d	230	}
92704a1c DM	231
	232	p = &__cpuid_patch;
	233	while (p < &__cpuid_patch_end) {
	234	unsigned long addr = p->addr;
	235	unsigned int *insns;
	236
	237	switch (tlb_type) {
	238	case spitfire:
	239	insns = &p->starfire[0];
	240	break;
	241	case cheetah:
	242	case cheetah_plus:
	243	if (is_jbus)
	244	insns = &p->cheetah_jbus[0];
	245	else
	246	insns = &p->cheetah_safari[0];
	247	break;
d96b8153 DM	248	case hypervisor:
	249	insns = &p->sun4v[0];
	250	break;
92704a1c DM	251	default:
	252	prom_printf("Unknown cpu type, halting.\n");
	253	prom_halt();
	254	};
	255
	256	(unsigned int ) (addr + 0) = insns[0];
840aaef8	257	wmb();
92704a1c DM	258	__asm__ __volatile__("flush %0" : : "r" (addr + 0));
	259
	260	(unsigned int ) (addr + 4) = insns[1];
840aaef8	261	wmb();
92704a1c DM	262	__asm__ __volatile__("flush %0" : : "r" (addr + 4));
	263
	264	(unsigned int ) (addr + 8) = insns[2];
840aaef8	265	wmb();
92704a1c DM	266	__asm__ __volatile__("flush %0" : : "r" (addr + 8));
	267
	268	(unsigned int ) (addr + 12) = insns[3];
840aaef8	269	wmb();
92704a1c DM	270	__asm__ __volatile__("flush %0" : : "r" (addr + 12));
	271
	272	p++;
	273	}
92704a1c DM	274	}
92704a1c DM	275
951bc82c	276	void __init sun4v_patch(void)
936f482a	277	{
c7754d46	278	extern void sun4v_hvapi_init(void);
df7d6aec DM	279	struct sun4v_1insn_patch_entry *p1;
df7d6aec DM	280	struct sun4v_2insn_patch_entry *p2;
936f482a DM	281
	282	if (tlb_type != hypervisor)
	283	return;
	284
df7d6aec DM	285	p1 = &__sun4v_1insn_patch;
df7d6aec DM	286	while (p1 < &__sun4v_1insn_patch_end) {
45fec05f	287	unsigned long addr = p1->addr;
936f482a	288
45fec05f	289	(unsigned int ) (addr + 0) = p1->insn;
840aaef8	290	wmb();
936f482a DM	291	__asm__ __volatile__("flush %0" : : "r" (addr + 0));
936f482a DM	292
45fec05f DM	293	p1++;
	294	}
	295
df7d6aec DM	296	p2 = &__sun4v_2insn_patch;
df7d6aec DM	297	while (p2 < &__sun4v_2insn_patch_end) {
45fec05f DM	298	unsigned long addr = p2->addr;
	299
	300	(unsigned int ) (addr + 0) = p2->insns[0];
840aaef8	301	wmb();
45fec05f DM	302	__asm__ __volatile__("flush %0" : : "r" (addr + 0));
45fec05f DM	303
fd05068d	304	(unsigned int ) (addr + 4) = p2->insns[1];
840aaef8	305	wmb();
45fec05f DM	306	__asm__ __volatile__("flush %0" : : "r" (addr + 4));
	307
	308	p2++;
936f482a	309	}
c7754d46 DM	310
c7754d46 DM	311	sun4v_hvapi_init();
936f482a DM	312	}
936f482a DM	313
951bc82c DM	314	#ifdef CONFIG_SMP
	315	void __init boot_cpu_id_too_large(int cpu)
	316	{
	317	prom_printf("Serious problem, boot cpu id (%d) >= NR_CPUS (%d)\n",
	318	cpu, NR_CPUS);
	319	prom_halt();
	320	}
	321	#endif
	322
1da177e4 LT	323	void __init setup_arch(char **cmdline_p)
1da177e4 LT	324	{
1da177e4 LT	325	/* Initialize PROM console and command line. */
1da177e4 LT	326	*cmdline_p = prom_getbootargs();
383464c0	327	strcpy(boot_command_line, *cmdline_p);
1da177e4	328
3a8c069d DM	329	if (tlb_type == hypervisor)
	330	printk("ARCH: SUN4V\n");
	331	else
	332	printk("ARCH: SUN4U\n");
1da177e4 LT	333
	334	#ifdef CONFIG_DUMMY_CONSOLE
	335	conswitchp = &dummy_con;
	336	#elif defined(CONFIG_PROM_CONSOLE)
	337	conswitchp = &prom_con;
	338	#endif
	339
1da177e4 LT	340	boot_flags_init(*cmdline_p);
	341
	342	idprom_init();
1da177e4 LT	343
	344	if (!root_flags)
	345	root_mountflags &= ~MS_RDONLY;
	346	ROOT_DEV = old_decode_dev(root_dev);
467418f3	347	#ifdef CONFIG_BLK_DEV_RAM
1da177e4 LT	348	rd_image_start = ram_flags & RAMDISK_IMAGE_START_MASK;
	349	rd_prompt = ((ram_flags & RAMDISK_PROMPT_FLAG) != 0);
	350	rd_doload = ((ram_flags & RAMDISK_LOAD_FLAG) != 0);
	351	#endif
	352
f3169641	353	task_thread_info(&init_task)->kregs = &fake_swapper_regs;
1da177e4 LT	354
	355	#ifdef CONFIG_IP_PNP
	356	if (!ic_set_manually) {
	357	int chosen = prom_finddevice ("/chosen");
	358	u32 cl, sv, gw;
	359
	360	cl = prom_getintdefault (chosen, "client-ip", 0);
	361	sv = prom_getintdefault (chosen, "server-ip", 0);
	362	gw = prom_getintdefault (chosen, "gateway-ip", 0);
	363	if (cl && sv) {
	364	ic_myaddr = cl;
	365	ic_servaddr = sv;
	366	if (gw)
	367	ic_gateway = gw;
	368	#if defined(CONFIG_IP_PNP_BOOTP) \|\| defined(CONFIG_IP_PNP_RARP)
	369	ic_proto_enabled = 0;
	370	#endif
	371	}
	372	}
	373	#endif
	374
56fb4df6	375	/* Get boot processor trap_block[] setup. */
72aff53f	376	init_cur_cpu_trap(current_thread_info());
52845cdb DM	377
52845cdb DM	378	paging_init();
1da177e4 LT	379	}
	380
	381	static int __init set_preferred_console(void)
	382	{
	383	int idev, odev;
	384
	385	/* The user has requested a console so this is already set up. */
	386	if (serial_console >= 0)
	387	return -EBUSY;
	388
	389	idev = prom_query_input_device();
	390	odev = prom_query_output_device();
	391	if (idev == PROMDEV_IKBD && odev == PROMDEV_OSCREEN) {
	392	serial_console = 0;
	393	} else if (idev == PROMDEV_ITTYA && odev == PROMDEV_OTTYA) {
	394	serial_console = 1;
	395	} else if (idev == PROMDEV_ITTYB && odev == PROMDEV_OTTYB) {
	396	serial_console = 2;
c126cf80 ED	397	} else if (idev == PROMDEV_IRSC && odev == PROMDEV_ORSC) {
c126cf80 ED	398	serial_console = 3;
1a7a242c DM	399	} else if (idev == PROMDEV_IVCONS && odev == PROMDEV_OVCONS) {
	400	/* sunhv_console_init() doesn't check the serial_console
	401	* value anyways...
	402	*/
	403	serial_console = 4;
d5a2aa24	404	return add_preferred_console("ttyHV", 0, NULL);
1da177e4 LT	405	} else {
	406	prom_printf("Inconsistent console: "
	407	"input %d, output %d\n",
	408	idev, odev);
	409	prom_halt();
	410	}
	411
	412	if (serial_console)
	413	return add_preferred_console("ttyS", serial_console - 1, NULL);
	414
	415	return -ENODEV;
	416	}
	417	console_initcall(set_preferred_console);
	418
	419	/* BUFFER is PAGE_SIZE bytes long. */
	420
	421	extern char *sparc_cpu_type;
	422	extern char *sparc_fpu_type;
	423
	424	extern void smp_info(struct seq_file *);
	425	extern void smp_bogo(struct seq_file *);
	426	extern void mmu_info(struct seq_file *);
	427
80dc0d6b DM	428	unsigned int dcache_parity_tl1_occurred;
	429	unsigned int icache_parity_tl1_occurred;
	430
5cbc3073	431	int ncpus_probed;
4d45cbac	432
1da177e4 LT	433	static int show_cpuinfo(struct seq_file m, void __unused)
	434	{
	435	seq_printf(m,
	436	"cpu\t\t: %s\n"
	437	"fpu\t\t: %s\n"
90a6646b DM	438	"prom\t\t: %s\n"
90a6646b DM	439	"type\t\t: %s\n"
4d45cbac DM	440	"ncpus probed\t: %d\n"
4d45cbac DM	441	"ncpus active\t: %d\n"
80dc0d6b DM	442	"D$ parity tl1\t: %u\n"
80dc0d6b DM	443	"I$ parity tl1\t: %u\n"
1da177e4	444	#ifndef CONFIG_SMP
1da177e4 LT	445	"Cpu0ClkTck\t: %016lx\n"
	446	#endif
	447	,
	448	sparc_cpu_type,
	449	sparc_fpu_type,
90a6646b DM	450	prom_version,
	451	((tlb_type == hypervisor) ?
	452	"sun4v" :
	453	"sun4u"),
4d45cbac DM	454	ncpus_probed,
4d45cbac DM	455	num_online_cpus(),
80dc0d6b	456	dcache_parity_tl1_occurred,
d54bc279	457	icache_parity_tl1_occurred,
1da177e4	458	#ifndef CONFIG_SMP
1da177e4 LT	459	cpu_data(0).clock_tick
	460	#endif
	461	);
	462	#ifdef CONFIG_SMP
	463	smp_bogo(m);
	464	#endif
	465	mmu_info(m);
	466	#ifdef CONFIG_SMP
	467	smp_info(m);
	468	#endif
	469	return 0;
	470	}
	471
	472	static void c_start(struct seq_file m, loff_t *pos)
	473	{
	474	/* The pointer we are returning is arbitrary,
	475	* it just has to be non-NULL and not IS_ERR
	476	* in the success case.
	477	*/
	478	return *pos == 0 ? &c_start : NULL;
	479	}
	480
	481	static void c_next(struct seq_file m, void v, loff_t pos)
	482	{
	483	++*pos;
	484	return c_start(m, pos);
	485	}
	486
	487	static void c_stop(struct seq_file m, void v)
	488	{
	489	}
	490
	491	struct seq_operations cpuinfo_op = {
	492	.start =c_start,
	493	.next = c_next,
	494	.stop = c_stop,
	495	.show = show_cpuinfo,
	496	};
	497
	498	extern int stop_a_enabled;
	499
	500	void sun_do_break(void)
	501	{
	502	if (!stop_a_enabled)
	503	return;
	504
	505	prom_printf("\n");
	506	flush_user_windows();
	507
	508	prom_cmdline();
	509	}
	510
	511	int serial_console = -1;
	512	int stop_a_enabled = 1;