sparc: prepare kernel/ for unification

o sparc32 files with identical names to sparc64 renamed to <name>_32.S
o introduced a few Kconfig helpers to simplify Makefile logic
o refactored Makefile to prepare for unification
  - use obj-$(CONFIG_SPARC32) for sparc32 specific files
  - use <name>_$(BITS) for files where sparc64 has a _64 variant
  - sparc64 directly include a few files where sparc32 builds them,
    refer to these files directly (no BITS)
  - sneaked in -Werror as used by sparc64
o modified sparc/Makefile to use the new names for head/init_task

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 423 deletions

diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c
deleted file mode 100644
index 24fe3078bd4b..000000000000
--- a/arch/sparc/kernel/setup.c
+++ /dev/null
@@ -1,423 +0,0 @@
-/*
- *  linux/arch/sparc/kernel/setup.c
- *
- *  Copyright (C) 1995  David S. Miller (davem@caip.rutgers.edu)
- *  Copyright (C) 2000  Anton Blanchard (anton@samba.org)
- */
-
-#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 <linux/initrd.h>
-#include <asm/smp.h>
-#include <linux/user.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/interrupt.h>
-#include <linux/console.h>
-#include <linux/spinlock.h>
-#include <linux/root_dev.h>
-#include <linux/cpu.h>
-#include <linux/kdebug.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/traps.h>
-#include <asm/vaddrs.h>
-#include <asm/mbus.h>
-#include <asm/idprom.h>
-#include <asm/machines.h>
-#include <asm/cpudata.h>
-#include <asm/setup.h>
-
-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,			/* ega_ax, ega_bx, ega_cx */
-	54,			/* orig-video-lines */
-	0,                      /* orig-video-isVGA */
-	16                      /* orig-video-points */
-};
-
-/* Typing sync at the prom prompt calls the function pointed to by
- * romvec->pv_synchook which I set to the following function.
- * This should sync all filesystems and return, for now it just
- * prints out pretty messages and returns.
- */
-
-extern unsigned long trapbase;
-
-/* Pretty sick eh? */
-static void prom_sync_me(void)
-{
-	unsigned long prom_tbr, flags;
-
-	/* XXX Badly broken. FIX! - Anton */
-	local_irq_save(flags);
-	__asm__ __volatile__("rd %%tbr, %0\n\t" : "=r" (prom_tbr));
-	__asm__ __volatile__("wr %0, 0x0, %%tbr\n\t"
-			     "nop\n\t"
-			     "nop\n\t"
-			     "nop\n\t" : : "r" (&trapbase));
-
-	prom_printf("PROM SYNC COMMAND...\n");
-	show_free_areas();
-	if(current->pid != 0) {
-		local_irq_enable();
-		sys_sync();
-		local_irq_disable();
-	}
-	prom_printf("Returning to prom\n");
-
-	__asm__ __volatile__("wr %0, 0x0, %%tbr\n\t"
-			     "nop\n\t"
-			     "nop\n\t"
-			     "nop\n\t" : : "r" (prom_tbr));
-	local_irq_restore(flags);
-
-	return;
-}
-
-static unsigned int boot_flags __initdata = 0;
-#define BOOTME_DEBUG  0x1
-
-/* Exported for mm/init.c:paging_init. */
-unsigned long cmdline_memory_size __initdata = 0;
-
-static void
-prom_console_write(struct console *con, const char *s, unsigned n)
-{
-	prom_write(s, n);
-}
-
-static struct console prom_debug_console = {
-	.name =		"debug",
-	.write =	prom_console_write,
-	.flags =	CON_PRINTBUFFER,
-	.index =	-1,
-};
-
-/* 
- * 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;
-	default:
-		printk("Unknown boot switch (-%c)\n", c);
-		break;
-	}
-}
-
-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, "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++;
-	}
-}
-
-/* This routine will in the future do all the nasty prom stuff
- * to probe for the mmu type and its parameters, etc. This will
- * also be where SMP things happen.
- */
-
-extern void sun4c_probe_vac(void);
-extern char cputypval;
-extern unsigned long start, end;
-
-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];
-enum sparc_cpu sparc_cpu_model;
-
-struct tt_entry *sparc_ttable;
-
-struct pt_regs fake_swapper_regs;
-
-void __init setup_arch(char **cmdline_p)
-{
-	int i;
-	unsigned long highest_paddr;
-
-	sparc_ttable = (struct tt_entry *) &start;
-
-	/* Initialize PROM console and command line. */
-	*cmdline_p = prom_getbootargs();
-	strcpy(boot_command_line, *cmdline_p);
-	parse_early_param();
-
-	/* Set sparc_cpu_model */
-	sparc_cpu_model = sun_unknown;
-	if (!strcmp(&cputypval,"sun4 "))
-		sparc_cpu_model = sun4;
-	if (!strcmp(&cputypval,"sun4c"))
-		sparc_cpu_model = sun4c;
-	if (!strcmp(&cputypval,"sun4m"))
-		sparc_cpu_model = sun4m;
-	if (!strcmp(&cputypval,"sun4s"))
-		sparc_cpu_model = sun4m; /* CP-1200 with PROM 2.30 -E */
-	if (!strcmp(&cputypval,"sun4d"))
-		sparc_cpu_model = sun4d;
-	if (!strcmp(&cputypval,"sun4e"))
-		sparc_cpu_model = sun4e;
-	if (!strcmp(&cputypval,"sun4u"))
-		sparc_cpu_model = sun4u;
-
-	printk("ARCH: ");
-	switch(sparc_cpu_model) {
-	case sun4:
-		printk("SUN4\n");
-		break;
-	case sun4c:
-		printk("SUN4C\n");
-		break;
-	case sun4m:
-		printk("SUN4M\n");
-		break;
-	case sun4d:
-		printk("SUN4D\n");
-		break;
-	case sun4e:
-		printk("SUN4E\n");
-		break;
-	case sun4u:
-		printk("SUN4U\n");
-		break;
-	default:
-		printk("UNKNOWN!\n");
-		break;
-	};
-
-#ifdef CONFIG_DUMMY_CONSOLE
-	conswitchp = &dummy_con;
-#elif defined(CONFIG_PROM_CONSOLE)
-	conswitchp = &prom_con;
-#endif
-	boot_flags_init(*cmdline_p);
-
-	idprom_init();
-	if (ARCH_SUN4C)
-		sun4c_probe_vac();
-	load_mmu();
-
-	phys_base = 0xffffffffUL;
-	highest_paddr = 0UL;
-	for (i = 0; sp_banks[i].num_bytes != 0; i++) {
-		unsigned long top;
-
-		if (sp_banks[i].base_addr < phys_base)
-			phys_base = sp_banks[i].base_addr;
-		top = sp_banks[i].base_addr +
-			sp_banks[i].num_bytes;
-		if (highest_paddr < top)
-			highest_paddr = top;
-	}
-	pfn_base = phys_base >> PAGE_SHIFT;
-
-	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
-
-	prom_setsync(prom_sync_me);
-
-	if((boot_flags&BOOTME_DEBUG) && (linux_dbvec!=0) && 
-	   ((*(short *)linux_dbvec) != -1)) {
-		printk("Booted under KADB. Syncing trap table.\n");
-		(*(linux_dbvec->teach_debugger))();
-	}
-
-	init_mm.context = (unsigned long) NO_CONTEXT;
-	init_task.thread.kregs = &fake_swapper_regs;
-
-	paging_init();
-
-	smp_setup_cpu_possible_map();
-}
-
-extern char *sparc_cpu_type;
-extern char *sparc_fpu_type;
-
-static 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"
-		   "promlib\t\t: Version %d Revision %d\n"
-		   "prom\t\t: %d.%d\n"
-		   "type\t\t: %s\n"
-		   "ncpus probed\t: %d\n"
-		   "ncpus active\t: %d\n"
-#ifndef CONFIG_SMP
-		   "CPU0Bogo\t: %lu.%02lu\n"
-		   "CPU0ClkTck\t: %ld\n"
-#endif
-		   ,
-		   sparc_cpu_type ? sparc_cpu_type : "undetermined",
-		   sparc_fpu_type ? sparc_fpu_type : "undetermined",
-		   romvec->pv_romvers,
-		   prom_rev,
-		   romvec->pv_printrev >> 16,
-		   romvec->pv_printrev & 0xffff,
-		   &cputypval,
-		   ncpus_probed,
-		   num_online_cpus()
-#ifndef CONFIG_SMP
-		   , cpu_data(0).udelay_val/(500000/HZ),
-		   (cpu_data(0).udelay_val/(5000/HZ)) % 100,
-		   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)
-{
-}
-
-const 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;
-
-	printk("\n");
-	flush_user_windows();
-
-	prom_cmdline();
-}
-
-int stop_a_enabled = 1;
-
-static int __init topology_init(void)
-{
-	int i, ncpus, err;
-
-	/* Count the number of physically present processors in
-	 * the machine, even on uniprocessor, so that /proc/cpuinfo
-	 * output is consistent with 2.4.x
-	 */
-	ncpus = 0;
-	while (!cpu_find_by_instance(ncpus, NULL, NULL))
-		ncpus++;
-	ncpus_probed = ncpus;
-
-	err = 0;
-	for_each_online_cpu(i) {
-		struct cpu *p = kzalloc(sizeof(*p), GFP_KERNEL);
-		if (!p)
-			err = -ENOMEM;
-		else
-			register_cpu(p, i);
-	}
-
-	return err;
-}
-
-subsys_initcall(topology_init);