powerpc: Remove arch/ppc and include/asm-ppc

All the maintained platforms are now in arch/powerpc, so the old
arch/ppc stuff can now go away.

Acked-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Becky Bruce <becky.bruce@freescale.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Jochen Friedrich <jochen@scram.de>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: Jon Loeliger <jdl@freescale.com>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Scott Wood <scottwood@freescale.com>
Acked-by: Sean MacLennan <smaclennan@pikatech.com>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 0 insertions, 464 deletions

diff --git a/arch/ppc/kernel/ppc_htab.c b/arch/ppc/kernel/ppc_htab.c
deleted file mode 100644
index 9ed36dd9cbff..000000000000
--- a/arch/ppc/kernel/ppc_htab.c
+++ /dev/null
@@ -1,464 +0,0 @@
-/*
- * PowerPC hash table management proc entry.  Will show information
- * about the current hash table and will allow changes to it.
- *
- * Written by Cort Dougan (cort@cs.nmt.edu)
- *
- * 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; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/proc_fs.h>
-#include <linux/stat.h>
-#include <linux/sysctl.h>
-#include <linux/capability.h>
-#include <linux/ctype.h>
-#include <linux/threads.h>
-#include <linux/seq_file.h>
-#include <linux/init.h>
-#include <linux/bitops.h>
-
-#include <asm/uaccess.h>
-#include <asm/mmu.h>
-#include <asm/residual.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/cputable.h>
-#include <asm/system.h>
-#include <asm/reg.h>
-
-static int ppc_htab_show(struct seq_file *m, void *v);
-static ssize_t ppc_htab_write(struct file * file, const char __user * buffer,
-			      size_t count, loff_t *ppos);
-extern PTE *Hash, *Hash_end;
-extern unsigned long Hash_size, Hash_mask;
-extern unsigned long _SDR1;
-extern unsigned long htab_reloads;
-extern unsigned long htab_preloads;
-extern unsigned long htab_evicts;
-extern unsigned long pte_misses;
-extern unsigned long pte_errors;
-extern unsigned int primary_pteg_full;
-extern unsigned int htab_hash_searches;
-
-static int ppc_htab_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, ppc_htab_show, NULL);
-}
-
-const struct file_operations ppc_htab_operations = {
-	.open		= ppc_htab_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.write		= ppc_htab_write,
-	.release	= single_release,
-};
-
-static char *pmc1_lookup(unsigned long mmcr0)
-{
-	switch ( mmcr0 & (0x7f<<7) )
-	{
-	case 0x0:
-		return "none";
-	case MMCR0_PMC1_CYCLES:
-		return "cycles";
-	case MMCR0_PMC1_ICACHEMISS:
-		return "ic miss";
-	case MMCR0_PMC1_DTLB:
-		return "dtlb miss";
-	default:
-		return "unknown";
-	}
-}
-
-static char *pmc2_lookup(unsigned long mmcr0)
-{
-	switch ( mmcr0 & 0x3f )
-	{
-	case 0x0:
-		return "none";
-	case MMCR0_PMC2_CYCLES:
-		return "cycles";
-	case MMCR0_PMC2_DCACHEMISS:
-		return "dc miss";
-	case MMCR0_PMC2_ITLB:
-		return "itlb miss";
-	case MMCR0_PMC2_LOADMISSTIME:
-		return "load miss time";
-	default:
-		return "unknown";
-	}
-}
-
-/*
- * print some useful info about the hash table.  This function
- * is _REALLY_ slow (see the nested for loops below) but nothing
- * in here should be really timing critical. -- Cort
- */
-static int ppc_htab_show(struct seq_file *m, void *v)
-{
-	unsigned long mmcr0 = 0, pmc1 = 0, pmc2 = 0;
-#if defined(CONFIG_PPC_STD_MMU)
-	unsigned int kptes = 0, uptes = 0;
-	PTE *ptr;
-#endif /* CONFIG_PPC_STD_MMU */
-
-	if (cpu_has_feature(CPU_FTR_604_PERF_MON)) {
-		mmcr0 = mfspr(SPRN_MMCR0);
-		pmc1 = mfspr(SPRN_PMC1);
-		pmc2 = mfspr(SPRN_PMC2);
-		seq_printf(m,
-			      "604 Performance Monitoring\n"
-			      "MMCR0\t\t: %08lx %s%s ",
-			      mmcr0,
-			      ( mmcr0>>28 & 0x2 ) ? "(user mode counted)" : "",
-			      ( mmcr0>>28 & 0x4 ) ? "(kernel mode counted)" : "");
-		seq_printf(m,
-			      "\nPMC1\t\t: %08lx (%s)\n"
-			      "PMC2\t\t: %08lx (%s)\n",
-			      pmc1, pmc1_lookup(mmcr0),
-			      pmc2, pmc2_lookup(mmcr0));
-	}
-
-#ifdef CONFIG_PPC_STD_MMU
-	/* if we don't have a htab */
-	if ( Hash_size == 0 ) {
-		seq_printf(m, "No Hash Table used\n");
-		return 0;
-	}
-
-	for (ptr = Hash; ptr < Hash_end; ptr++) {
-		unsigned int mctx, vsid;
-
-		if (!ptr->v)
-			continue;
-		/* undo the esid skew */
-		vsid = ptr->vsid;
-		mctx = ((vsid - (vsid & 0xf) * 0x111) >> 4) & 0xfffff;
-		if (mctx == 0)
-			kptes++;
-		else
-			uptes++;
-	}
-
-	seq_printf(m,
-		      "PTE Hash Table Information\n"
-		      "Size\t\t: %luKb\n"
-		      "Buckets\t\t: %lu\n"
- 		      "Address\t\t: %08lx\n"
-		      "Entries\t\t: %lu\n"
-		      "User ptes\t: %u\n"
-		      "Kernel ptes\t: %u\n"
-		      "Percent full\t: %lu%%\n"
-                      , (unsigned long)(Hash_size>>10),
-		      (Hash_size/(sizeof(PTE)*8)),
-		      (unsigned long)Hash,
-		      Hash_size/sizeof(PTE)
-                      , uptes,
-		      kptes,
-		      ((kptes+uptes)*100) / (Hash_size/sizeof(PTE))
-		);
-
-	seq_printf(m,
-		      "Reloads\t\t: %lu\n"
-		      "Preloads\t: %lu\n"
-		      "Searches\t: %u\n"
-		      "Overflows\t: %u\n"
-		      "Evicts\t\t: %lu\n",
-		      htab_reloads, htab_preloads, htab_hash_searches,
-		      primary_pteg_full, htab_evicts);
-#endif /* CONFIG_PPC_STD_MMU */
-
-	seq_printf(m,
-		      "Non-error misses: %lu\n"
-		      "Error misses\t: %lu\n",
-		      pte_misses, pte_errors);
-	return 0;
-}
-
-/*
- * Allow user to define performance counters and resize the hash table
- */
-static ssize_t ppc_htab_write(struct file * file, const char __user * ubuffer,
-			      size_t count, loff_t *ppos)
-{
-#ifdef CONFIG_PPC_STD_MMU
-	unsigned long tmp;
-	char buffer[16];
-
-	if (!capable(CAP_SYS_ADMIN))
-		return -EACCES;
-	if (strncpy_from_user(buffer, ubuffer, 15))
-		return -EFAULT;
-	buffer[15] = 0;
-
-	/* don't set the htab size for now */
-	if ( !strncmp( buffer, "size ", 5) )
-		return -EBUSY;
-
-	if ( !strncmp( buffer, "reset", 5) )
-	{
-		if (cpu_has_feature(CPU_FTR_604_PERF_MON)) {
-			/* reset PMC1 and PMC2 */
-			mtspr(SPRN_PMC1, 0);
-			mtspr(SPRN_PMC2, 0);
-		}
-		htab_reloads = 0;
-		htab_evicts = 0;
-		pte_misses = 0;
-		pte_errors = 0;
-	}
-
-	/* Everything below here requires the performance monitor feature. */
-	if (!cpu_has_feature(CPU_FTR_604_PERF_MON))
-		return count;
-
-	/* turn off performance monitoring */
-	if ( !strncmp( buffer, "off", 3) )
-	{
-		mtspr(SPRN_MMCR0, 0);
-		mtspr(SPRN_PMC1, 0);
-		mtspr(SPRN_PMC2, 0);
-	}
-
-	if ( !strncmp( buffer, "user", 4) )
-	{
-		/* setup mmcr0 and clear the correct pmc */
-		tmp = (mfspr(SPRN_MMCR0) & ~(0x60000000)) | 0x20000000;
-		mtspr(SPRN_MMCR0, tmp);
-		mtspr(SPRN_PMC1, 0);
-		mtspr(SPRN_PMC2, 0);
-	}
-
-	if ( !strncmp( buffer, "kernel", 6) )
-	{
-		/* setup mmcr0 and clear the correct pmc */
-		tmp = (mfspr(SPRN_MMCR0) & ~(0x60000000)) | 0x40000000;
-		mtspr(SPRN_MMCR0, tmp);
-		mtspr(SPRN_PMC1, 0);
-		mtspr(SPRN_PMC2, 0);
-	}
-
-	/* PMC1 values */
-	if ( !strncmp( buffer, "dtlb", 4) )
-	{
-		/* setup mmcr0 and clear the correct pmc */
-		tmp = (mfspr(SPRN_MMCR0) & ~(0x7F << 7)) | MMCR0_PMC1_DTLB;
-		mtspr(SPRN_MMCR0, tmp);
-		mtspr(SPRN_PMC1, 0);
-	}
-
-	if ( !strncmp( buffer, "ic miss", 7) )
-	{
-		/* setup mmcr0 and clear the correct pmc */
-		tmp = (mfspr(SPRN_MMCR0) & ~(0x7F<<7)) | MMCR0_PMC1_ICACHEMISS;
-		mtspr(SPRN_MMCR0, tmp);
-		mtspr(SPRN_PMC1, 0);
-	}
-
-	/* PMC2 values */
-	if ( !strncmp( buffer, "load miss time", 14) )
-	{
-		/* setup mmcr0 and clear the correct pmc */
-	       asm volatile(
-		       "mfspr %0,%1\n\t"     /* get current mccr0 */
-		       "rlwinm %0,%0,0,0,31-6\n\t"  /* clear bits [26-31] */
-		       "ori   %0,%0,%2 \n\t" /* or in mmcr0 settings */
-		       "mtspr %1,%0 \n\t"    /* set new mccr0 */
-		       "mtspr %3,%4 \n\t"    /* reset the pmc */
-		       : "=r" (tmp)
-		       : "i" (SPRN_MMCR0),
-		       "i" (MMCR0_PMC2_LOADMISSTIME),
-		       "i" (SPRN_PMC2),  "r" (0) );
-	}
-
-	if ( !strncmp( buffer, "itlb", 4) )
-	{
-		/* setup mmcr0 and clear the correct pmc */
-	       asm volatile(
-		       "mfspr %0,%1\n\t"     /* get current mccr0 */
-		       "rlwinm %0,%0,0,0,31-6\n\t"  /* clear bits [26-31] */
-		       "ori   %0,%0,%2 \n\t" /* or in mmcr0 settings */
-		       "mtspr %1,%0 \n\t"    /* set new mccr0 */
-		       "mtspr %3,%4 \n\t"    /* reset the pmc */
-		       : "=r" (tmp)
-		       : "i" (SPRN_MMCR0), "i" (MMCR0_PMC2_ITLB),
-		       "i" (SPRN_PMC2),  "r" (0) );
-	}
-
-	if ( !strncmp( buffer, "dc miss", 7) )
-	{
-		/* setup mmcr0 and clear the correct pmc */
-	       asm volatile(
-		       "mfspr %0,%1\n\t"     /* get current mccr0 */
-		       "rlwinm %0,%0,0,0,31-6\n\t"  /* clear bits [26-31] */
-		       "ori   %0,%0,%2 \n\t" /* or in mmcr0 settings */
-		       "mtspr %1,%0 \n\t"    /* set new mccr0 */
-		       "mtspr %3,%4 \n\t"    /* reset the pmc */
-		       : "=r" (tmp)
-		       : "i" (SPRN_MMCR0), "i" (MMCR0_PMC2_DCACHEMISS),
-		       "i" (SPRN_PMC2),  "r" (0) );
-	}
-
-	return count;
-#else /* CONFIG_PPC_STD_MMU */
-	return 0;
-#endif /* CONFIG_PPC_STD_MMU */
-}
-
-int proc_dol2crvec(ctl_table *table, int write, struct file *filp,
-		  void __user *buffer_arg, size_t *lenp, loff_t *ppos)
-{
-	int vleft, first=1, len, left, val;
-	char __user *buffer = (char __user *) buffer_arg;
-	#define TMPBUFLEN 256
-	char buf[TMPBUFLEN], *p;
-	static const char *sizestrings[4] = {
-		"2MB", "256KB", "512KB", "1MB"
-	};
-	static const char *clockstrings[8] = {
-		"clock disabled", "+1 clock", "+1.5 clock", "reserved(3)",
-		"+2 clock", "+2.5 clock", "+3 clock", "reserved(7)"
-	};
-	static const char *typestrings[4] = {
-		"flow-through burst SRAM", "reserved SRAM",
-		"pipelined burst SRAM", "pipelined late-write SRAM"
-	};
-	static const char *holdstrings[4] = {
-		"0.5", "1.0", "(reserved2)", "(reserved3)"
-	};
-
-	if (!cpu_has_feature(CPU_FTR_L2CR))
-		return -EFAULT;
-
-	if ( /*!table->maxlen ||*/ (*ppos && !write)) {
-		*lenp = 0;
-		return 0;
-	}
-
-	vleft = table->maxlen / sizeof(int);
-	left = *lenp;
-
-	for (; left /*&& vleft--*/; first=0) {
-		if (write) {
-			while (left) {
-				char c;
-				if(get_user(c, buffer))
-					return -EFAULT;
-				if (!isspace(c))
-					break;
-				left--;
-				buffer++;
-			}
-			if (!left)
-				break;
-			len = left;
-			if (len > TMPBUFLEN-1)
-				len = TMPBUFLEN-1;
-			if(copy_from_user(buf, buffer, len))
-				return -EFAULT;
-			buf[len] = 0;
-			p = buf;
-			if (*p < '0' || *p > '9')
-				break;
-			val = simple_strtoul(p, &p, 0);
-			len = p-buf;
-			if ((len < left) && *p && !isspace(*p))
-				break;
-			buffer += len;
-			left -= len;
-			_set_L2CR(val);
-		} else {
-			p = buf;
-			if (!first)
-				*p++ = '\t';
-			val = _get_L2CR();
-			p += sprintf(p, "0x%08x: ", val);
-			p += sprintf(p, " %s", (val >> 31) & 1 ? "enabled" :
-				     	"disabled");
-			p += sprintf(p, ", %sparity", (val>>30)&1 ? "" : "no ");
-			p += sprintf(p, ", %s", sizestrings[(val >> 28) & 3]);
-			p += sprintf(p, ", %s", clockstrings[(val >> 25) & 7]);
-			p += sprintf(p, ", %s", typestrings[(val >> 23) & 2]);
-			p += sprintf(p, "%s", (val>>22)&1 ? ", data only" : "");
-			p += sprintf(p, "%s", (val>>20)&1 ? ", ZZ enabled": "");
-			p += sprintf(p, ", %s", (val>>19)&1 ? "write-through" :
-					"copy-back");
-			p += sprintf(p, "%s", (val>>18)&1 ? ", testing" : "");
-			p += sprintf(p, ", %sns hold",holdstrings[(val>>16)&3]);
-			p += sprintf(p, "%s", (val>>15)&1 ? ", DLL slow" : "");
-			p += sprintf(p, "%s", (val>>14)&1 ? ", diff clock" :"");
-			p += sprintf(p, "%s", (val>>13)&1 ? ", DLL bypass" :"");
-
-			p += sprintf(p,"\n");
-
-			len = strlen(buf);
-			if (len > left)
-				len = left;
-			if (copy_to_user(buffer, buf, len))
-				return -EFAULT;
-			left -= len;
-			buffer += len;
-			break;
-		}
-	}
-
-	if (!write && !first && left) {
-		if(put_user('\n', (char __user *) buffer))
-			return -EFAULT;
-		left--, buffer++;
-	}
-	if (write) {
-		char __user *s = (char __user *) buffer;
-		while (left) {
-			char c;
-			if(get_user(c, s++))
-				return -EFAULT;
-			if (!isspace(c))
-				break;
-			left--;
-		}
-	}
-	if (write && first)
-		return -EINVAL;
-	*lenp -= left;
-	*ppos += *lenp;
-	return 0;
-}
-
-#ifdef CONFIG_SYSCTL
-/*
- * Register our sysctl.
- */
-static ctl_table htab_ctl_table[]={
-	{
-		.procname	= "l2cr",
-		.mode		= 0644,
-		.proc_handler	= &proc_dol2crvec,
-	},
-	{}
-};
-static ctl_table htab_sysctl_root[] = {
-	{
-		.ctl_name	= CTL_KERN,
-		.procname	= "kernel",
-		.mode		= 0555,
-		.child		= htab_ctl_table,
-	},
-	{}
-};
-
-static int __init
-register_ppc_htab_sysctl(void)
-{
-	register_sysctl_table(htab_sysctl_root);
-
-	return 0;
-}
-
-__initcall(register_ppc_htab_sysctl);
-#endif