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Commit 746479cd authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
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s390/bitops: use generic find bit functions / reimplement _left variant



Just like all other architectures we should use out-of-line find bit
operations, since the inline variant bloat the size of the kernel image.
And also like all other architecures we should only supply optimized
variants of the __ffs, ffs, etc. primitives.

Therefore this patch removes the inlined s390 find bit functions and uses
the generic out-of-line variants instead.

The optimization of the primitives follows with the next patch.

With this patch also the functions find_first_bit_left() and
find_next_bit_left() have been reimplemented, since logically, they are
nothing else but a find_first_bit()/find_next_bit() implementation that
use an inverted __fls() instead of __ffs().
Also the restriction that these functions only work on machines which
support the "flogr" instruction is gone now.

This reduces the size of the kernel image (defconfig, -march=z9-109)
by 144,482 bytes.
Alone the size of the function build_sched_domains() gets reduced from
7 KB to 3,5 KB.

We also git rid of unused functions like find_first_bit_le()...

Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 8e6a8285
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+1 −0
Original line number Diff line number Diff line
@@ -99,6 +99,7 @@ config S390
	select CLONE_BACKWARDS2
	select GENERIC_CLOCKEVENTS
	select GENERIC_CPU_DEVICES if !SMP
	select GENERIC_FIND_FIRST_BIT
	select GENERIC_SMP_IDLE_THREAD
	select GENERIC_TIME_VSYSCALL_OLD
	select HAVE_ALIGNED_STRUCT_PAGE if SLUB
+46 −554
Original line number Diff line number Diff line
/*
 *  S390 version
 *    Copyright IBM Corp. 1999
 *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
 *    Copyright IBM Corp. 1999,2013
 *
 *  Derived from "include/asm-i386/bitops.h"
 *    Copyright (C) 1992, Linus Torvalds
 *    Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
 *
 * The description below was taken in large parts from the powerpc
 * bitops header file:
 * Within a word, bits are numbered LSB first.  Lot's of places make
 * this assumption by directly testing bits with (val & (1<<nr)).
 * This can cause confusion for large (> 1 word) bitmaps on a
 * big-endian system because, unlike little endian, the number of each
 * bit depends on the word size.
 *
 * The bitop functions are defined to work on unsigned longs, so for an
 * s390x system the bits end up numbered:
 *   |63..............0|127............64|191...........128|255...........196|
 * and on s390:
 *   |31.....0|63....31|95....64|127...96|159..128|191..160|223..192|255..224|
 *
 * There are a few little-endian macros used mostly for filesystem
 * bitmaps, these work on similar bit arrays layouts, but
 * byte-oriented:
 *   |7...0|15...8|23...16|31...24|39...32|47...40|55...48|63...56|
 *
 * The main difference is that bit 3-5 (64b) or 3-4 (32b) in the bit
 * number field needs to be reversed compared to the big-endian bit
 * fields. This can be achieved by XOR with 0x38 (64b) or 0x18 (32b).
 *
 * We also have special functions which work with an MSB0 encoding:
 * on an s390x system the bits are numbered:
 *   |0..............63|64............127|128...........191|192...........255|
 * and on s390:
 *   |0.....31|31....63|64....95|96...127|128..159|160..191|192..223|224..255|
 *
 * The main difference is that bit 0-63 (64b) or 0-31 (32b) in the bit
 * number field needs to be reversed compared to the LSB0 encoded bit
 * fields. This can be achieved by XOR with 0x3f (64b) or 0x1f (32b).
 *
 */

@@ -18,46 +48,6 @@
#include <linux/typecheck.h>
#include <linux/compiler.h>

/*
 * 32 bit bitops format:
 * bit 0 is the LSB of *addr; bit 31 is the MSB of *addr;
 * bit 32 is the LSB of *(addr+4). That combined with the
 * big endian byte order on S390 give the following bit
 * order in memory:
 *    1f 1e 1d 1c 1b 1a 19 18 17 16 15 14 13 12 11 10 \
 *    0f 0e 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00
 * after that follows the next long with bit numbers
 *    3f 3e 3d 3c 3b 3a 39 38 37 36 35 34 33 32 31 30
 *    2f 2e 2d 2c 2b 2a 29 28 27 26 25 24 23 22 21 20
 * The reason for this bit ordering is the fact that
 * in the architecture independent code bits operations
 * of the form "flags |= (1 << bitnr)" are used INTERMIXED
 * with operation of the form "set_bit(bitnr, flags)".
 *
 * 64 bit bitops format:
 * bit 0 is the LSB of *addr; bit 63 is the MSB of *addr;
 * bit 64 is the LSB of *(addr+8). That combined with the
 * big endian byte order on S390 give the following bit
 * order in memory:
 *    3f 3e 3d 3c 3b 3a 39 38 37 36 35 34 33 32 31 30
 *    2f 2e 2d 2c 2b 2a 29 28 27 26 25 24 23 22 21 20
 *    1f 1e 1d 1c 1b 1a 19 18 17 16 15 14 13 12 11 10
 *    0f 0e 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00
 * after that follows the next long with bit numbers
 *    7f 7e 7d 7c 7b 7a 79 78 77 76 75 74 73 72 71 70
 *    6f 6e 6d 6c 6b 6a 69 68 67 66 65 64 63 62 61 60
 *    5f 5e 5d 5c 5b 5a 59 58 57 56 55 54 53 52 51 50
 *    4f 4e 4d 4c 4b 4a 49 48 47 46 45 44 43 42 41 40
 * The reason for this bit ordering is the fact that
 * in the architecture independent code bits operations
 * of the form "flags |= (1 << bitnr)" are used INTERMIXED
 * with operation of the form "set_bit(bitnr, flags)".
 */

/* bitmap tables from arch/s390/kernel/bitmap.c */
extern const char _zb_findmap[];
extern const char _sb_findmap[];

#ifndef CONFIG_64BIT

#define __BITOPS_OR		"or"
@@ -310,522 +300,24 @@ static inline int test_bit(unsigned long nr, const volatile unsigned long *ptr)
}

/*
 * Optimized find bit helper functions.
 */

/**
 * __ffz_word_loop - find byte offset of first long != -1UL
 * @addr: pointer to array of unsigned long
 * @size: size of the array in bits
 */
static inline unsigned long __ffz_word_loop(const unsigned long *addr,
					    unsigned long size)
{
	typedef struct { long _[__BITOPS_WORDS(size)]; } addrtype;
	unsigned long bytes = 0;

	asm volatile(
#ifndef CONFIG_64BIT
		"	ahi	%1,-1\n"
		"	sra	%1,5\n"
		"	jz	1f\n"
		"0:	c	%2,0(%0,%3)\n"
		"	jne	1f\n"
		"	la	%0,4(%0)\n"
		"	brct	%1,0b\n"
		"1:\n"
#else
		"	aghi	%1,-1\n"
		"	srag	%1,%1,6\n"
		"	jz	1f\n"
		"0:	cg	%2,0(%0,%3)\n"
		"	jne	1f\n"
		"	la	%0,8(%0)\n"
		"	brct	%1,0b\n"
		"1:\n"
#endif
		: "+&a" (bytes), "+&d" (size)
		: "d" (-1UL), "a" (addr), "m" (*(addrtype *) addr)
		: "cc" );
	return bytes;
}

/**
 * __ffs_word_loop - find byte offset of first long != 0UL
 * @addr: pointer to array of unsigned long
 * @size: size of the array in bits
 */
static inline unsigned long __ffs_word_loop(const unsigned long *addr,
					    unsigned long size)
{
	typedef struct { long _[__BITOPS_WORDS(size)]; } addrtype;
	unsigned long bytes = 0;

	asm volatile(
#ifndef CONFIG_64BIT
		"	ahi	%1,-1\n"
		"	sra	%1,5\n"
		"	jz	1f\n"
		"0:	c	%2,0(%0,%3)\n"
		"	jne	1f\n"
		"	la	%0,4(%0)\n"
		"	brct	%1,0b\n"
		"1:\n"
#else
		"	aghi	%1,-1\n"
		"	srag	%1,%1,6\n"
		"	jz	1f\n"
		"0:	cg	%2,0(%0,%3)\n"
		"	jne	1f\n"
		"	la	%0,8(%0)\n"
		"	brct	%1,0b\n"
		"1:\n"
#endif
		: "+&a" (bytes), "+&a" (size)
		: "d" (0UL), "a" (addr), "m" (*(addrtype *) addr)
		: "cc" );
	return bytes;
}

/**
 * __ffz_word - add number of the first unset bit
 * @nr: base value the bit number is added to
 * @word: the word that is searched for unset bits
 */
static inline unsigned long __ffz_word(unsigned long nr, unsigned long word)
{
#ifdef CONFIG_64BIT
	if ((word & 0xffffffff) == 0xffffffff) {
		word >>= 32;
		nr += 32;
	}
#endif
	if ((word & 0xffff) == 0xffff) {
		word >>= 16;
		nr += 16;
	}
	if ((word & 0xff) == 0xff) {
		word >>= 8;
		nr += 8;
	}
	return nr + _zb_findmap[(unsigned char) word];
}

/**
 * __ffs_word - add number of the first set bit
 * @nr: base value the bit number is added to
 * @word: the word that is searched for set bits
 */
static inline unsigned long __ffs_word(unsigned long nr, unsigned long word)
{
#ifdef CONFIG_64BIT
	if ((word & 0xffffffff) == 0) {
		word >>= 32;
		nr += 32;
	}
#endif
	if ((word & 0xffff) == 0) {
		word >>= 16;
		nr += 16;
	}
	if ((word & 0xff) == 0) {
		word >>= 8;
		nr += 8;
	}
	return nr + _sb_findmap[(unsigned char) word];
}


/**
 * __load_ulong_be - load big endian unsigned long
 * @p: pointer to array of unsigned long
 * @offset: byte offset of source value in the array
 */
static inline unsigned long __load_ulong_be(const unsigned long *p,
					    unsigned long offset)
{
	p = (unsigned long *)((unsigned long) p + offset);
	return *p;
}

/**
 * __load_ulong_le - load little endian unsigned long
 * @p: pointer to array of unsigned long
 * @offset: byte offset of source value in the array
 */
static inline unsigned long __load_ulong_le(const unsigned long *p,
					    unsigned long offset)
{
	unsigned long word;

	p = (unsigned long *)((unsigned long) p + offset);
#ifndef CONFIG_64BIT
	asm volatile(
		"	ic	%0,%O1(%R1)\n"
		"	icm	%0,2,%O1+1(%R1)\n"
		"	icm	%0,4,%O1+2(%R1)\n"
		"	icm	%0,8,%O1+3(%R1)"
		: "=&d" (word) : "Q" (*p) : "cc");
#else
	asm volatile(
		"	lrvg	%0,%1"
		: "=d" (word) : "m" (*p) );
#endif
	return word;
}

/*
 * The various find bit functions.
 */

/*
 * ffz - find first zero in word.
 * @word: The word to search
 *
 * Undefined if no zero exists, so code should check against ~0UL first.
 */
static inline unsigned long ffz(unsigned long word)
{
	return __ffz_word(0, word);
}

/**
 * __ffs - find first bit in word.
 * @word: The word to search
 *
 * Undefined if no bit exists, so code should check against 0 first.
 */
static inline unsigned long __ffs (unsigned long word)
{
	return __ffs_word(0, word);
}

/**
 * ffs - find first bit set
 * @x: the word to search
 *
 * This is defined the same way as
 * the libc and compiler builtin ffs routines, therefore
 * differs in spirit from the above ffz (man ffs).
 */
static inline int ffs(int x)
{
	if (!x)
		return 0;
	return __ffs_word(1, x);
}

/**
 * find_first_zero_bit - find the first zero bit in a memory region
 * @addr: The address to start the search at
 * @size: The maximum size to search
 *
 * Returns the bit-number of the first zero bit, not the number of the byte
 * containing a bit.
 */
static inline unsigned long find_first_zero_bit(const unsigned long *addr,
						unsigned long size)
{
	unsigned long bytes, bits;

        if (!size)
                return 0;
	bytes = __ffz_word_loop(addr, size);
	bits = __ffz_word(bytes*8, __load_ulong_be(addr, bytes));
	return (bits < size) ? bits : size;
}
#define find_first_zero_bit find_first_zero_bit

/**
 * find_first_bit - find the first set bit in a memory region
 * @addr: The address to start the search at
 * @size: The maximum size to search
 *
 * Returns the bit-number of the first set bit, not the number of the byte
 * containing a bit.
 */
static inline unsigned long find_first_bit(const unsigned long * addr,
					   unsigned long size)
{
	unsigned long bytes, bits;

        if (!size)
                return 0;
	bytes = __ffs_word_loop(addr, size);
	bits = __ffs_word(bytes*8, __load_ulong_be(addr, bytes));
	return (bits < size) ? bits : size;
}
#define find_first_bit find_first_bit

/*
 * Big endian variant whichs starts bit counting from left using
 * the flogr (find leftmost one) instruction.
 * ATTENTION:
 * find_first_bit_left() and find_next_bit_left() use MSB0 encoding.
 */
static inline unsigned long __flo_word(unsigned long nr, unsigned long val)
{
	register unsigned long bit asm("2") = val;
	register unsigned long out asm("3");

	asm volatile (
		"	.insn	rre,0xb9830000,%[bit],%[bit]\n"
		: [bit] "+d" (bit), [out] "=d" (out) : : "cc");
	return nr + bit;
}
unsigned long find_first_bit_left(const unsigned long *addr, unsigned long size);
unsigned long find_next_bit_left(const unsigned long *addr, unsigned long size,
				 unsigned long offset);

/*
 * 64 bit special left bitops format:
 * order in memory:
 *    00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f
 *    10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
 *    20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f
 *    30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f
 * after that follows the next long with bit numbers
 *    40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f
 *    50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f
 *    60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f
 *    70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f
 * The reason for this bit ordering is the fact that
 * the hardware sets bits in a bitmap starting at bit 0
 * and we don't want to scan the bitmap from the 'wrong
 * end'.
 */
static inline unsigned long find_first_bit_left(const unsigned long *addr,
						unsigned long size)
{
	unsigned long bytes, bits;

	if (!size)
		return 0;
	bytes = __ffs_word_loop(addr, size);
	bits = __flo_word(bytes * 8, __load_ulong_be(addr, bytes));
	return (bits < size) ? bits : size;
}

static inline int find_next_bit_left(const unsigned long *addr,
				     unsigned long size,
				     unsigned long offset)
{
	const unsigned long *p;
	unsigned long bit, set;

	if (offset >= size)
		return size;
	bit = offset & (BITS_PER_LONG - 1);
	offset -= bit;
	size -= offset;
	p = addr + offset / BITS_PER_LONG;
	if (bit) {
		set = __flo_word(0, *p & (~0UL >> bit));
		if (set >= size)
			return size + offset;
		if (set < BITS_PER_LONG)
			return set + offset;
		offset += BITS_PER_LONG;
		size -= BITS_PER_LONG;
		p++;
	}
	return offset + find_first_bit_left(p, size);
}

#define for_each_set_bit_left(bit, addr, size)				\
	for ((bit) = find_first_bit_left((addr), (size));		\
	     (bit) < (size);						\
	     (bit) = find_next_bit_left((addr), (size), (bit) + 1))

/* same as for_each_set_bit() but use bit as value to start with */
#define for_each_set_bit_left_cont(bit, addr, size)			\
	for ((bit) = find_next_bit_left((addr), (size), (bit));		\
	     (bit) < (size);						\
	     (bit) = find_next_bit_left((addr), (size), (bit) + 1))

/**
 * find_next_zero_bit - find the first zero bit in a memory region
 * @addr: The address to base the search on
 * @offset: The bitnumber to start searching at
 * @size: The maximum size to search
 */
static inline int find_next_zero_bit (const unsigned long * addr,
				      unsigned long size,
				      unsigned long offset)
{
        const unsigned long *p;
	unsigned long bit, set;

	if (offset >= size)
		return size;
	bit = offset & (BITS_PER_LONG - 1);
	offset -= bit;
	size -= offset;
	p = addr + offset / BITS_PER_LONG;
	if (bit) {
		/*
		 * __ffz_word returns BITS_PER_LONG
		 * if no zero bit is present in the word.
		 */
		set = __ffz_word(bit, *p >> bit);
		if (set >= size)
			return size + offset;
		if (set < BITS_PER_LONG)
			return set + offset;
		offset += BITS_PER_LONG;
		size -= BITS_PER_LONG;
		p++;
	}
	return offset + find_first_zero_bit(p, size);
}
#define find_next_zero_bit find_next_zero_bit

/**
 * find_next_bit - find the first set bit in a memory region
 * @addr: The address to base the search on
 * @offset: The bitnumber to start searching at
 * @size: The maximum size to search
 */
static inline int find_next_bit (const unsigned long * addr,
				 unsigned long size,
				 unsigned long offset)
{
        const unsigned long *p;
	unsigned long bit, set;

	if (offset >= size)
		return size;
	bit = offset & (BITS_PER_LONG - 1);
	offset -= bit;
	size -= offset;
	p = addr + offset / BITS_PER_LONG;
	if (bit) {
		/*
		 * __ffs_word returns BITS_PER_LONG
		 * if no one bit is present in the word.
		 */
		set = __ffs_word(0, *p & (~0UL << bit));
		if (set >= size)
			return size + offset;
		if (set < BITS_PER_LONG)
			return set + offset;
		offset += BITS_PER_LONG;
		size -= BITS_PER_LONG;
		p++;
	}
	return offset + find_first_bit(p, size);
}
#define find_next_bit find_next_bit

/*
 * Every architecture must define this function. It's the fastest
 * way of searching a 140-bit bitmap where the first 100 bits are
 * unlikely to be set. It's guaranteed that at least one of the 140
 * bits is cleared.
 */
static inline int sched_find_first_bit(unsigned long *b)
{
	return find_first_bit(b, 140);
}

#include <asm-generic/bitops/fls.h>
#include <asm-generic/bitops/__ffs.h>
#include <asm-generic/bitops/ffs.h>
#include <asm-generic/bitops/__fls.h>
#include <asm-generic/bitops/fls.h>
#include <asm-generic/bitops/fls64.h>

#include <asm-generic/bitops/ffz.h>
#include <asm-generic/bitops/find.h>
#include <asm-generic/bitops/hweight.h>
#include <asm-generic/bitops/lock.h>

/*
 * ATTENTION: intel byte ordering convention for ext2 and minix !!
 * bit 0 is the LSB of addr; bit 31 is the MSB of addr;
 * bit 32 is the LSB of (addr+4).
 * That combined with the little endian byte order of Intel gives the
 * following bit order in memory:
 *    07 06 05 04 03 02 01 00 15 14 13 12 11 10 09 08 \
 *    23 22 21 20 19 18 17 16 31 30 29 28 27 26 25 24
 */

static inline int find_first_zero_bit_le(void *vaddr, unsigned int size)
{
	unsigned long bytes, bits;

        if (!size)
                return 0;
	bytes = __ffz_word_loop(vaddr, size);
	bits = __ffz_word(bytes*8, __load_ulong_le(vaddr, bytes));
	return (bits < size) ? bits : size;
}
#define find_first_zero_bit_le find_first_zero_bit_le

static inline int find_next_zero_bit_le(void *vaddr, unsigned long size,
					  unsigned long offset)
{
        unsigned long *addr = vaddr, *p;
	unsigned long bit, set;

        if (offset >= size)
                return size;
	bit = offset & (BITS_PER_LONG - 1);
	offset -= bit;
	size -= offset;
	p = addr + offset / BITS_PER_LONG;
        if (bit) {
		/*
		 * s390 version of ffz returns BITS_PER_LONG
		 * if no zero bit is present in the word.
		 */
		set = __ffz_word(bit, __load_ulong_le(p, 0) >> bit);
		if (set >= size)
			return size + offset;
		if (set < BITS_PER_LONG)
			return set + offset;
		offset += BITS_PER_LONG;
		size -= BITS_PER_LONG;
		p++;
        }
	return offset + find_first_zero_bit_le(p, size);
}
#define find_next_zero_bit_le find_next_zero_bit_le

static inline unsigned long find_first_bit_le(void *vaddr, unsigned long size)
{
	unsigned long bytes, bits;

	if (!size)
		return 0;
	bytes = __ffs_word_loop(vaddr, size);
	bits = __ffs_word(bytes*8, __load_ulong_le(vaddr, bytes));
	return (bits < size) ? bits : size;
}
#define find_first_bit_le find_first_bit_le

static inline int find_next_bit_le(void *vaddr, unsigned long size,
				     unsigned long offset)
{
	unsigned long *addr = vaddr, *p;
	unsigned long bit, set;

	if (offset >= size)
		return size;
	bit = offset & (BITS_PER_LONG - 1);
	offset -= bit;
	size -= offset;
	p = addr + offset / BITS_PER_LONG;
	if (bit) {
		/*
		 * s390 version of ffz returns BITS_PER_LONG
		 * if no zero bit is present in the word.
		 */
		set = __ffs_word(0, __load_ulong_le(p, 0) & (~0UL << bit));
		if (set >= size)
			return size + offset;
		if (set < BITS_PER_LONG)
			return set + offset;
		offset += BITS_PER_LONG;
		size -= BITS_PER_LONG;
		p++;
	}
	return offset + find_first_bit_le(p, size);
}
#define find_next_bit_le find_next_bit_le

#include <asm-generic/bitops/sched.h>
#include <asm-generic/bitops/le.h>

#include <asm-generic/bitops/ext2-atomic-setbit.h>

#endif /* _S390_BITOPS_H */
+1 −1
Original line number Diff line number Diff line
@@ -28,7 +28,7 @@ CFLAGS_ptrace.o += -DUTS_MACHINE='"$(UTS_MACHINE)"'

CFLAGS_sysinfo.o += -Iinclude/math-emu -Iarch/s390/math-emu -w

obj-y	:= bitmap.o traps.o time.o process.o base.o early.o setup.o vtime.o
obj-y	:= traps.o time.o process.o base.o early.o setup.o vtime.o
obj-y	+= processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o
obj-y	+= debug.o irq.o ipl.o dis.o diag.o sclp.o vdso.o
obj-y	+= sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o pgm_check.o

arch/s390/kernel/bitmap.c

deleted100644 → 0
+0 −48
Original line number Diff line number Diff line
/*
 *    Bitmaps for set_bit, clear_bit, test_and_set_bit, ...
 *    See include/asm/{bitops.h|posix_types.h} for details
 *
 *    Copyright IBM Corp. 1999, 2009
 *    Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
 */

#include <linux/bitops.h>
#include <linux/module.h>

const char _zb_findmap[] = {
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,6,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,7,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,6,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,8 };
EXPORT_SYMBOL(_zb_findmap);

const char _sb_findmap[] = {
	8,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	6,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	7,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	6,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0 };
EXPORT_SYMBOL(_sb_findmap);
+1 −1
Original line number Diff line number Diff line
@@ -2,7 +2,7 @@
# Makefile for s390-specific library files..
#

lib-y += delay.o string.o uaccess_std.o uaccess_pt.o
lib-y += delay.o string.o uaccess_std.o uaccess_pt.o find.o
obj-$(CONFIG_32BIT) += div64.o qrnnd.o ucmpdi2.o mem32.o
obj-$(CONFIG_64BIT) += mem64.o
lib-$(CONFIG_64BIT) += uaccess_mvcos.o
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