aboutsummaryrefslogtreecommitdiff
path: root/arch/i386
diff options
context:
space:
mode:
Diffstat (limited to 'arch/i386')
-rw-r--r--arch/i386/Makefile2
-rw-r--r--arch/i386/lib/Makefile5
-rw-r--r--arch/i386/lib/Makefile_3211
-rw-r--r--arch/i386/lib/bitops_32.c70
-rw-r--r--arch/i386/lib/checksum_32.S546
-rw-r--r--arch/i386/lib/delay_32.c103
-rw-r--r--arch/i386/lib/getuser_32.S78
-rw-r--r--arch/i386/lib/memcpy_32.c43
-rw-r--r--arch/i386/lib/mmx_32.c403
-rw-r--r--arch/i386/lib/msr-on-cpu.c119
-rw-r--r--arch/i386/lib/putuser_32.S98
-rw-r--r--arch/i386/lib/semaphore_32.S219
-rw-r--r--arch/i386/lib/string_32.c257
-rw-r--r--arch/i386/lib/strstr_32.c31
-rw-r--r--arch/i386/lib/usercopy_32.c882
15 files changed, 1 insertions, 2866 deletions
diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index fe374b65430..93492b37061 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -101,7 +101,7 @@ mflags-y += -Iinclude/asm-i386/mach-default
head-y := arch/i386/kernel/head_32.o arch/i386/kernel/init_task_32.o
-libs-y += arch/i386/lib/
+libs-y += arch/x86/lib/
core-y += arch/i386/kernel/ \
arch/i386/mm/ \
$(mcore-y)/ \
diff --git a/arch/i386/lib/Makefile b/arch/i386/lib/Makefile
deleted file mode 100644
index 2b1547e0ac6..00000000000
--- a/arch/i386/lib/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-ifeq ($(CONFIG_X86_32),y)
-include ${srctree}/arch/i386/lib/Makefile_32
-else
-include ${srctree}/arch/x86_64/lib/Makefile_64
-endif
diff --git a/arch/i386/lib/Makefile_32 b/arch/i386/lib/Makefile_32
deleted file mode 100644
index 98d1f1e2e2e..00000000000
--- a/arch/i386/lib/Makefile_32
+++ /dev/null
@@ -1,11 +0,0 @@
-#
-# Makefile for i386-specific library files..
-#
-
-
-lib-y = checksum_32.o delay_32.o usercopy_32.o getuser_32.o putuser_32.o memcpy_32.o strstr_32.o \
- bitops_32.o semaphore_32.o string_32.o
-
-lib-$(CONFIG_X86_USE_3DNOW) += mmx_32.o
-
-obj-$(CONFIG_SMP) += msr-on-cpu.o
diff --git a/arch/i386/lib/bitops_32.c b/arch/i386/lib/bitops_32.c
deleted file mode 100644
index afd0045595d..00000000000
--- a/arch/i386/lib/bitops_32.c
+++ /dev/null
@@ -1,70 +0,0 @@
-#include <linux/bitops.h>
-#include <linux/module.h>
-
-/**
- * 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
- */
-int find_next_bit(const unsigned long *addr, int size, int offset)
-{
- const unsigned long *p = addr + (offset >> 5);
- int set = 0, bit = offset & 31, res;
-
- if (bit) {
- /*
- * Look for nonzero in the first 32 bits:
- */
- __asm__("bsfl %1,%0\n\t"
- "jne 1f\n\t"
- "movl $32, %0\n"
- "1:"
- : "=r" (set)
- : "r" (*p >> bit));
- if (set < (32 - bit))
- return set + offset;
- set = 32 - bit;
- p++;
- }
- /*
- * No set bit yet, search remaining full words for a bit
- */
- res = find_first_bit (p, size - 32 * (p - addr));
- return (offset + set + res);
-}
-EXPORT_SYMBOL(find_next_bit);
-
-/**
- * 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
- */
-int find_next_zero_bit(const unsigned long *addr, int size, int offset)
-{
- const unsigned long *p = addr + (offset >> 5);
- int set = 0, bit = offset & 31, res;
-
- if (bit) {
- /*
- * Look for zero in the first 32 bits.
- */
- __asm__("bsfl %1,%0\n\t"
- "jne 1f\n\t"
- "movl $32, %0\n"
- "1:"
- : "=r" (set)
- : "r" (~(*p >> bit)));
- if (set < (32 - bit))
- return set + offset;
- set = 32 - bit;
- p++;
- }
- /*
- * No zero yet, search remaining full bytes for a zero
- */
- res = find_first_zero_bit(p, size - 32 * (p - addr));
- return (offset + set + res);
-}
-EXPORT_SYMBOL(find_next_zero_bit);
diff --git a/arch/i386/lib/checksum_32.S b/arch/i386/lib/checksum_32.S
deleted file mode 100644
index adbccd0bbb7..00000000000
--- a/arch/i386/lib/checksum_32.S
+++ /dev/null
@@ -1,546 +0,0 @@
-/*
- * INET An implementation of the TCP/IP protocol suite for the LINUX
- * operating system. INET is implemented using the BSD Socket
- * interface as the means of communication with the user level.
- *
- * IP/TCP/UDP checksumming routines
- *
- * Authors: Jorge Cwik, <jorge@laser.satlink.net>
- * Arnt Gulbrandsen, <agulbra@nvg.unit.no>
- * Tom May, <ftom@netcom.com>
- * Pentium Pro/II routines:
- * Alexander Kjeldaas <astor@guardian.no>
- * Finn Arne Gangstad <finnag@guardian.no>
- * Lots of code moved from tcp.c and ip.c; see those files
- * for more names.
- *
- * Changes: Ingo Molnar, converted csum_partial_copy() to 2.1 exception
- * handling.
- * Andi Kleen, add zeroing on error
- * converted to pure assembler
- *
- * 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/linkage.h>
-#include <asm/dwarf2.h>
-#include <asm/errno.h>
-
-/*
- * computes a partial checksum, e.g. for TCP/UDP fragments
- */
-
-/*
-unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum)
- */
-
-.text
-
-#ifndef CONFIG_X86_USE_PPRO_CHECKSUM
-
- /*
- * Experiments with Ethernet and SLIP connections show that buff
- * is aligned on either a 2-byte or 4-byte boundary. We get at
- * least a twofold speedup on 486 and Pentium if it is 4-byte aligned.
- * Fortunately, it is easy to convert 2-byte alignment to 4-byte
- * alignment for the unrolled loop.
- */
-ENTRY(csum_partial)
- CFI_STARTPROC
- pushl %esi
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET esi, 0
- pushl %ebx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ebx, 0
- movl 20(%esp),%eax # Function arg: unsigned int sum
- movl 16(%esp),%ecx # Function arg: int len
- movl 12(%esp),%esi # Function arg: unsigned char *buff
- testl $3, %esi # Check alignment.
- jz 2f # Jump if alignment is ok.
- testl $1, %esi # Check alignment.
- jz 10f # Jump if alignment is boundary of 2bytes.
-
- # buf is odd
- dec %ecx
- jl 8f
- movzbl (%esi), %ebx
- adcl %ebx, %eax
- roll $8, %eax
- inc %esi
- testl $2, %esi
- jz 2f
-10:
- subl $2, %ecx # Alignment uses up two bytes.
- jae 1f # Jump if we had at least two bytes.
- addl $2, %ecx # ecx was < 2. Deal with it.
- jmp 4f
-1: movw (%esi), %bx
- addl $2, %esi
- addw %bx, %ax
- adcl $0, %eax
-2:
- movl %ecx, %edx
- shrl $5, %ecx
- jz 2f
- testl %esi, %esi
-1: movl (%esi), %ebx
- adcl %ebx, %eax
- movl 4(%esi), %ebx
- adcl %ebx, %eax
- movl 8(%esi), %ebx
- adcl %ebx, %eax
- movl 12(%esi), %ebx
- adcl %ebx, %eax
- movl 16(%esi), %ebx
- adcl %ebx, %eax
- movl 20(%esi), %ebx
- adcl %ebx, %eax
- movl 24(%esi), %ebx
- adcl %ebx, %eax
- movl 28(%esi), %ebx
- adcl %ebx, %eax
- lea 32(%esi), %esi
- dec %ecx
- jne 1b
- adcl $0, %eax
-2: movl %edx, %ecx
- andl $0x1c, %edx
- je 4f
- shrl $2, %edx # This clears CF
-3: adcl (%esi), %eax
- lea 4(%esi), %esi
- dec %edx
- jne 3b
- adcl $0, %eax
-4: andl $3, %ecx
- jz 7f
- cmpl $2, %ecx
- jb 5f
- movw (%esi),%cx
- leal 2(%esi),%esi
- je 6f
- shll $16,%ecx
-5: movb (%esi),%cl
-6: addl %ecx,%eax
- adcl $0, %eax
-7:
- testl $1, 12(%esp)
- jz 8f
- roll $8, %eax
-8:
- popl %ebx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE ebx
- popl %esi
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE esi
- ret
- CFI_ENDPROC
-ENDPROC(csum_partial)
-
-#else
-
-/* Version for PentiumII/PPro */
-
-ENTRY(csum_partial)
- CFI_STARTPROC
- pushl %esi
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET esi, 0
- pushl %ebx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ebx, 0
- movl 20(%esp),%eax # Function arg: unsigned int sum
- movl 16(%esp),%ecx # Function arg: int len
- movl 12(%esp),%esi # Function arg: const unsigned char *buf
-
- testl $3, %esi
- jnz 25f
-10:
- movl %ecx, %edx
- movl %ecx, %ebx
- andl $0x7c, %ebx
- shrl $7, %ecx
- addl %ebx,%esi
- shrl $2, %ebx
- negl %ebx
- lea 45f(%ebx,%ebx,2), %ebx
- testl %esi, %esi
- jmp *%ebx
-
- # Handle 2-byte-aligned regions
-20: addw (%esi), %ax
- lea 2(%esi), %esi
- adcl $0, %eax
- jmp 10b
-25:
- testl $1, %esi
- jz 30f
- # buf is odd
- dec %ecx
- jl 90f
- movzbl (%esi), %ebx
- addl %ebx, %eax
- adcl $0, %eax
- roll $8, %eax
- inc %esi
- testl $2, %esi
- jz 10b
-
-30: subl $2, %ecx
- ja 20b
- je 32f
- addl $2, %ecx
- jz 80f
- movzbl (%esi),%ebx # csumming 1 byte, 2-aligned
- addl %ebx, %eax
- adcl $0, %eax
- jmp 80f
-32:
- addw (%esi), %ax # csumming 2 bytes, 2-aligned
- adcl $0, %eax
- jmp 80f
-
-40:
- addl -128(%esi), %eax
- adcl -124(%esi), %eax
- adcl -120(%esi), %eax
- adcl -116(%esi), %eax
- adcl -112(%esi), %eax
- adcl -108(%esi), %eax
- adcl -104(%esi), %eax
- adcl -100(%esi), %eax
- adcl -96(%esi), %eax
- adcl -92(%esi), %eax
- adcl -88(%esi), %eax
- adcl -84(%esi), %eax
- adcl -80(%esi), %eax
- adcl -76(%esi), %eax
- adcl -72(%esi), %eax
- adcl -68(%esi), %eax
- adcl -64(%esi), %eax
- adcl -60(%esi), %eax
- adcl -56(%esi), %eax
- adcl -52(%esi), %eax
- adcl -48(%esi), %eax
- adcl -44(%esi), %eax
- adcl -40(%esi), %eax
- adcl -36(%esi), %eax
- adcl -32(%esi), %eax
- adcl -28(%esi), %eax
- adcl -24(%esi), %eax
- adcl -20(%esi), %eax
- adcl -16(%esi), %eax
- adcl -12(%esi), %eax
- adcl -8(%esi), %eax
- adcl -4(%esi), %eax
-45:
- lea 128(%esi), %esi
- adcl $0, %eax
- dec %ecx
- jge 40b
- movl %edx, %ecx
-50: andl $3, %ecx
- jz 80f
-
- # Handle the last 1-3 bytes without jumping
- notl %ecx # 1->2, 2->1, 3->0, higher bits are masked
- movl $0xffffff,%ebx # by the shll and shrl instructions
- shll $3,%ecx
- shrl %cl,%ebx
- andl -128(%esi),%ebx # esi is 4-aligned so should be ok
- addl %ebx,%eax
- adcl $0,%eax
-80:
- testl $1, 12(%esp)
- jz 90f
- roll $8, %eax
-90:
- popl %ebx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE ebx
- popl %esi
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE esi
- ret
- CFI_ENDPROC
-ENDPROC(csum_partial)
-
-#endif
-
-/*
-unsigned int csum_partial_copy_generic (const char *src, char *dst,
- int len, int sum, int *src_err_ptr, int *dst_err_ptr)
- */
-
-/*
- * Copy from ds while checksumming, otherwise like csum_partial
- *
- * The macros SRC and DST specify the type of access for the instruction.
- * thus we can call a custom exception handler for all access types.
- *
- * FIXME: could someone double-check whether I haven't mixed up some SRC and
- * DST definitions? It's damn hard to trigger all cases. I hope I got
- * them all but there's no guarantee.
- */
-
-#define SRC(y...) \
- 9999: y; \
- .section __ex_table, "a"; \
- .long 9999b, 6001f ; \
- .previous
-
-#define DST(y...) \
- 9999: y; \
- .section __ex_table, "a"; \
- .long 9999b, 6002f ; \
- .previous
-
-#ifndef CONFIG_X86_USE_PPRO_CHECKSUM
-
-#define ARGBASE 16
-#define FP 12
-
-ENTRY(csum_partial_copy_generic)
- CFI_STARTPROC
- subl $4,%esp
- CFI_ADJUST_CFA_OFFSET 4
- pushl %edi
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET edi, 0
- pushl %esi
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET esi, 0
- pushl %ebx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ebx, 0
- movl ARGBASE+16(%esp),%eax # sum
- movl ARGBASE+12(%esp),%ecx # len
- movl ARGBASE+4(%esp),%esi # src
- movl ARGBASE+8(%esp),%edi # dst
-
- testl $2, %edi # Check alignment.
- jz 2f # Jump if alignment is ok.
- subl $2, %ecx # Alignment uses up two bytes.
- jae 1f # Jump if we had at least two bytes.
- addl $2, %ecx # ecx was < 2. Deal with it.
- jmp 4f
-SRC(1: movw (%esi), %bx )
- addl $2, %esi
-DST( movw %bx, (%edi) )
- addl $2, %edi
- addw %bx, %ax
- adcl $0, %eax
-2:
- movl %ecx, FP(%esp)
- shrl $5, %ecx
- jz 2f
- testl %esi, %esi
-SRC(1: movl (%esi), %ebx )
-SRC( movl 4(%esi), %edx )
- adcl %ebx, %eax
-DST( movl %ebx, (%edi) )
- adcl %edx, %eax
-DST( movl %edx, 4(%edi) )
-
-SRC( movl 8(%esi), %ebx )
-SRC( movl 12(%esi), %edx )
- adcl %ebx, %eax
-DST( movl %ebx, 8(%edi) )
- adcl %edx, %eax
-DST( movl %edx, 12(%edi) )
-
-SRC( movl 16(%esi), %ebx )
-SRC( movl 20(%esi), %edx )
- adcl %ebx, %eax
-DST( movl %ebx, 16(%edi) )
- adcl %edx, %eax
-DST( movl %edx, 20(%edi) )
-
-SRC( movl 24(%esi), %ebx )
-SRC( movl 28(%esi), %edx )
- adcl %ebx, %eax
-DST( movl %ebx, 24(%edi) )
- adcl %edx, %eax
-DST( movl %edx, 28(%edi) )
-
- lea 32(%esi), %esi
- lea 32(%edi), %edi
- dec %ecx
- jne 1b
- adcl $0, %eax
-2: movl FP(%esp), %edx
- movl %edx, %ecx
- andl $0x1c, %edx
- je 4f
- shrl $2, %edx # This clears CF
-SRC(3: movl (%esi), %ebx )
- adcl %ebx, %eax
-DST( movl %ebx, (%edi) )
- lea 4(%esi), %esi
- lea 4(%edi), %edi
- dec %edx
- jne 3b
- adcl $0, %eax
-4: andl $3, %ecx
- jz 7f
- cmpl $2, %ecx
- jb 5f
-SRC( movw (%esi), %cx )
- leal 2(%esi), %esi
-DST( movw %cx, (%edi) )
- leal 2(%edi), %edi
- je 6f
- shll $16,%ecx
-SRC(5: movb (%esi), %cl )
-DST( movb %cl, (%edi) )
-6: addl %ecx, %eax
- adcl $0, %eax
-7:
-5000:
-
-# Exception handler:
-.section .fixup, "ax"
-
-6001:
- movl ARGBASE+20(%esp), %ebx # src_err_ptr
- movl $-EFAULT, (%ebx)
-
- # zero the complete destination - computing the rest
- # is too much work
- movl ARGBASE+8(%esp), %edi # dst
- movl ARGBASE+12(%esp), %ecx # len
- xorl %eax,%eax
- rep ; stosb
-
- jmp 5000b
-
-6002:
- movl ARGBASE+24(%esp), %ebx # dst_err_ptr
- movl $-EFAULT,(%ebx)
- jmp 5000b
-
-.previous
-
- popl %ebx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE ebx
- popl %esi
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE esi
- popl %edi
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE edi
- popl %ecx # equivalent to addl $4,%esp
- CFI_ADJUST_CFA_OFFSET -4
- ret
- CFI_ENDPROC
-ENDPROC(csum_partial_copy_generic)
-
-#else
-
-/* Version for PentiumII/PPro */
-
-#define ROUND1(x) \
- SRC(movl x(%esi), %ebx ) ; \
- addl %ebx, %eax ; \
- DST(movl %ebx, x(%edi) ) ;
-
-#define ROUND(x) \
- SRC(movl x(%esi), %ebx ) ; \
- adcl %ebx, %eax ; \
- DST(movl %ebx, x(%edi) ) ;
-
-#define ARGBASE 12
-
-ENTRY(csum_partial_copy_generic)
- CFI_STARTPROC
- pushl %ebx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ebx, 0
- pushl %edi
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET edi, 0
- pushl %esi
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET esi, 0
- movl ARGBASE+4(%esp),%esi #src
- movl ARGBASE+8(%esp),%edi #dst
- movl ARGBASE+12(%esp),%ecx #len
- movl ARGBASE+16(%esp),%eax #sum
-# movl %ecx, %edx
- movl %ecx, %ebx
- movl %esi, %edx
- shrl $6, %ecx
- andl $0x3c, %ebx
- negl %ebx
- subl %ebx, %esi
- subl %ebx, %edi
- lea -1(%esi),%edx
- andl $-32,%edx
- lea 3f(%ebx,%ebx), %ebx
- testl %esi, %esi
- jmp *%ebx
-1: addl $64,%esi
- addl $64,%edi
- SRC(movb -32(%edx),%bl) ; SRC(movb (%edx),%bl)
- ROUND1(-64) ROUND(-60) ROUND(-56) ROUND(-52)
- ROUND (-48) ROUND(-44) ROUND(-40) ROUND(-36)
- ROUND (-32) ROUND(-28) ROUND(-24) ROUND(-20)
- ROUND (-16) ROUND(-12) ROUND(-8) ROUND(-4)
-3: adcl $0,%eax
- addl $64, %edx
- dec %ecx
- jge 1b
-4: movl ARGBASE+12(%esp),%edx #len
- andl $3, %edx
- jz 7f
- cmpl $2, %edx
- jb 5f
-SRC( movw (%esi), %dx )
- leal 2(%esi), %esi
-DST( movw %dx, (%edi) )
- leal 2(%edi), %edi
- je 6f
- shll $16,%edx
-5:
-SRC( movb (%esi), %dl )
-DST( movb %dl, (%edi) )
-6: addl %edx, %eax
- adcl $0, %eax
-7:
-.section .fixup, "ax"
-6001: movl ARGBASE+20(%esp), %ebx # src_err_ptr
- movl $-EFAULT, (%ebx)
- # zero the complete destination (computing the rest is too much work)
- movl ARGBASE+8(%esp),%edi # dst
- movl ARGBASE+12(%esp),%ecx # len
- xorl %eax,%eax
- rep; stosb
- jmp 7b
-6002: movl ARGBASE+24(%esp), %ebx # dst_err_ptr
- movl $-EFAULT, (%ebx)
- jmp 7b
-.previous
-
- popl %esi
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE esi
- popl %edi
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE edi
- popl %ebx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE ebx
- ret
- CFI_ENDPROC
-ENDPROC(csum_partial_copy_generic)
-
-#undef ROUND
-#undef ROUND1
-
-#endif
diff --git a/arch/i386/lib/delay_32.c b/arch/i386/lib/delay_32.c
deleted file mode 100644
index f6edb11364d..00000000000
--- a/arch/i386/lib/delay_32.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * Precise Delay Loops for i386
- *
- * Copyright (C) 1993 Linus Torvalds
- * Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
- *
- * The __delay function must _NOT_ be inlined as its execution time
- * depends wildly on alignment on many x86 processors. The additional
- * jump magic is needed to get the timing stable on all the CPU's
- * we have to worry about.
- */
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-
-#include <asm/processor.h>
-#include <asm/delay.h>
-#include <asm/timer.h>
-
-#ifdef CONFIG_SMP
-# include <asm/smp.h>
-#endif
-
-/* simple loop based delay: */
-static void delay_loop(unsigned long loops)
-{
- int d0;
-
- __asm__ __volatile__(
- "\tjmp 1f\n"
- ".align 16\n"
- "1:\tjmp 2f\n"
- ".align 16\n"
- "2:\tdecl %0\n\tjns 2b"
- :"=&a" (d0)
- :"0" (loops));
-}
-
-/* TSC based delay: */
-static void delay_tsc(unsigned long loops)
-{
- unsigned long bclock, now;
-
- rdtscl(bclock);
- do {
- rep_nop();
- rdtscl(now);
- } while ((now-bclock) < loops);
-}
-
-/*
- * Since we calibrate only once at boot, this
- * function should be set once at boot and not changed
- */
-static void (*delay_fn)(unsigned long) = delay_loop;
-
-void use_tsc_delay(void)
-{
- delay_fn = delay_tsc;
-}
-
-int read_current_timer(unsigned long *timer_val)
-{
- if (delay_fn == delay_tsc) {
- rdtscl(*timer_val);
- return 0;
- }
- return -1;
-}
-
-void __delay(unsigned long loops)
-{
- delay_fn(loops);
-}
-
-inline void __const_udelay(unsigned long xloops)
-{
- int d0;
-
- xloops *= 4;
- __asm__("mull %0"
- :"=d" (xloops), "=&a" (d0)
- :"1" (xloops), "0"
- (cpu_data[raw_smp_processor_id()].loops_per_jiffy * (HZ/4)));
-
- __delay(++xloops);
-}
-
-void __udelay(unsigned long usecs)
-{
- __const_udelay(usecs * 0x000010c7); /* 2**32 / 1000000 (rounded up) */
-}
-
-void __ndelay(unsigned long nsecs)
-{
- __const_udelay(nsecs * 0x00005); /* 2**32 / 1000000000 (rounded up) */
-}
-
-EXPORT_SYMBOL(__delay);
-EXPORT_SYMBOL(__const_udelay);
-EXPORT_SYMBOL(__udelay);
-EXPORT_SYMBOL(__ndelay);
diff --git a/arch/i386/lib/getuser_32.S b/arch/i386/lib/getuser_32.S
deleted file mode 100644
index 6d84b53f12a..00000000000
--- a/arch/i386/lib/getuser_32.S
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * __get_user functions.
- *
- * (C) Copyright 1998 Linus Torvalds
- *
- * These functions have a non-standard call interface
- * to make them more efficient, especially as they
- * return an error value in addition to the "real"
- * return value.
- */
-#include <linux/linkage.h>
-#include <asm/dwarf2.h>
-#include <asm/thread_info.h>
-
-
-/*
- * __get_user_X
- *
- * Inputs: %eax contains the address
- *
- * Outputs: %eax is error code (0 or -EFAULT)
- * %edx contains zero-extended value
- *
- * These functions should not modify any other registers,
- * as they get called from within inline assembly.
- */
-
-.text
-ENTRY(__get_user_1)
- CFI_STARTPROC
- GET_THREAD_INFO(%edx)
- cmpl TI_addr_limit(%edx),%eax
- jae bad_get_user
-1: movzbl (%eax),%edx
- xorl %eax,%eax
- ret
- CFI_ENDPROC
-ENDPROC(__get_user_1)
-
-ENTRY(__get_user_2)
- CFI_STARTPROC
- addl $1,%eax
- jc bad_get_user
- GET_THREAD_INFO(%edx)
- cmpl TI_addr_limit(%edx),%eax
- jae bad_get_user
-2: movzwl -1(%eax),%edx
- xorl %eax,%eax
- ret
- CFI_ENDPROC
-ENDPROC(__get_user_2)
-
-ENTRY(__get_user_4)
- CFI_STARTPROC
- addl $3,%eax
- jc bad_get_user
- GET_THREAD_INFO(%edx)
- cmpl TI_addr_limit(%edx),%eax
- jae bad_get_user
-3: movl -3(%eax),%edx
- xorl %eax,%eax
- ret
- CFI_ENDPROC
-ENDPROC(__get_user_4)
-
-bad_get_user:
- CFI_STARTPROC
- xorl %edx,%edx
- movl $-14,%eax
- ret
- CFI_ENDPROC
-END(bad_get_user)
-
-.section __ex_table,"a"
- .long 1b,bad_get_user
- .long 2b,bad_get_user
- .long 3b,bad_get_user
-.previous
diff --git a/arch/i386/lib/memcpy_32.c b/arch/i386/lib/memcpy_32.c
deleted file mode 100644
index 8ac51b82a63..00000000000
--- a/arch/i386/lib/memcpy_32.c
+++ /dev/null
@@ -1,43 +0,0 @@
-#include <linux/string.h>
-#include <linux/module.h>
-
-#undef memcpy
-#undef memset
-
-void *memcpy(void *to, const void *from, size_t n)
-{
-#ifdef CONFIG_X86_USE_3DNOW
- return __memcpy3d(to, from, n);
-#else
- return __memcpy(to, from, n);
-#endif
-}
-EXPORT_SYMBOL(memcpy);
-
-void *memset(void *s, int c, size_t count)
-{
- return __memset(s, c, count);
-}
-EXPORT_SYMBOL(memset);
-
-void *memmove(void *dest, const void *src, size_t n)
-{
- int d0, d1, d2;
-
- if (dest < src) {
- memcpy(dest,src,n);
- } else {
- __asm__ __volatile__(
- "std\n\t"
- "rep\n\t"
- "movsb\n\t"
- "cld"
- : "=&c" (d0), "=&S" (d1), "=&D" (d2)
- :"0" (n),
- "1" (n-1+(const char *)src),
- "2" (n-1+(char *)dest)
- :"memory");
- }
- return dest;
-}
-EXPORT_SYMBOL(memmove);
diff --git a/arch/i386/lib/mmx_32.c b/arch/i386/lib/mmx_32.c
deleted file mode 100644
index 28084d2e8dd..00000000000
--- a/arch/i386/lib/mmx_32.c
+++ /dev/null
@@ -1,403 +0,0 @@
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/sched.h>
-#include <linux/hardirq.h>
-#include <linux/module.h>
-
-#include <asm/i387.h>
-
-
-/*
- * MMX 3DNow! library helper functions
- *
- * To do:
- * We can use MMX just for prefetch in IRQ's. This may be a win.
- * (reported so on K6-III)
- * We should use a better code neutral filler for the short jump
- * leal ebx. [ebx] is apparently best for K6-2, but Cyrix ??
- * We also want to clobber the filler register so we don't get any
- * register forwarding stalls on the filler.
- *
- * Add *user handling. Checksums are not a win with MMX on any CPU
- * tested so far for any MMX solution figured.
- *
- * 22/09/2000 - Arjan van de Ven
- * Improved for non-egineering-sample Athlons
- *
- */
-
-void *_mmx_memcpy(void *to, const void *from, size_t len)
-{
- void *p;
- int i;
-
- if (unlikely(in_interrupt()))
- return __memcpy(to, from, len);
-
- p = to;
- i = len >> 6; /* len/64 */
-
- kernel_fpu_begin();
-
- __asm__ __volatile__ (
- "1: prefetch (%0)\n" /* This set is 28 bytes */
- " prefetch 64(%0)\n"
- " prefetch 128(%0)\n"
- " prefetch 192(%0)\n"
- " prefetch 256(%0)\n"
- "2: \n"
- ".section .fixup, \"ax\"\n"
- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
- " jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
- : : "r" (from) );
-
-
- for(; i>5; i--)
- {
- __asm__ __volatile__ (
- "1: prefetch 320(%0)\n"
- "2: movq (%0), %%mm0\n"
- " movq 8(%0), %%mm1\n"
- " movq 16(%0), %%mm2\n"
- " movq 24(%0), %%mm3\n"
- " movq %%mm0, (%1)\n"
- " movq %%mm1, 8(%1)\n"
- " movq %%mm2, 16(%1)\n"
- " movq %%mm3, 24(%1)\n"
- " movq 32(%0), %%mm0\n"
- " movq 40(%0), %%mm1\n"
- " movq 48(%0), %%mm2\n"
- " movq 56(%0), %%mm3\n"
- " movq %%mm0, 32(%1)\n"
- " movq %%mm1, 40(%1)\n"
- " movq %%mm2, 48(%1)\n"
- " movq %%mm3, 56(%1)\n"
- ".section .fixup, \"ax\"\n"
- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
- " jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
- : : "r" (from), "r" (to) : "memory");
- from+=64;
- to+=64;
- }
-
- for(; i>0; i--)
- {
- __asm__ __volatile__ (
- " movq (%0), %%mm0\n"
- " movq 8(%0), %%mm1\n"
- " movq 16(%0), %%mm2\n"
- " movq 24(%0), %%mm3\n"
- " movq %%mm0, (%1)\n"
- " movq %%mm1, 8(%1)\n"
- " movq %%mm2, 16(%1)\n"
- " movq %%mm3, 24(%1)\n"
- " movq 32(%0), %%mm0\n"
- " movq 40(%0), %%mm1\n"
- " movq 48(%0), %%mm2\n"
- " movq 56(%0), %%mm3\n"
- " movq %%mm0, 32(%1)\n"
- " movq %%mm1, 40(%1)\n"
- " movq %%mm2, 48(%1)\n"
- " movq %%mm3, 56(%1)\n"
- : : "r" (from), "r" (to) : "memory");
- from+=64;
- to+=64;
- }
- /*
- * Now do the tail of the block
- */
- __memcpy(to, from, len&63);
- kernel_fpu_end();
- return p;
-}
-
-#ifdef CONFIG_MK7
-
-/*
- * The K7 has streaming cache bypass load/store. The Cyrix III, K6 and
- * other MMX using processors do not.
- */
-
-static void fast_clear_page(void *page)
-{
- int i;
-
- kernel_fpu_begin();
-
- __asm__ __volatile__ (
- " pxor %%mm0, %%mm0\n" : :
- );
-
- for(i=0;i<4096/64;i++)
- {
- __asm__ __volatile__ (
- " movntq %%mm0, (%0)\n"
- " movntq %%mm0, 8(%0)\n"
- " movntq %%mm0, 16(%0)\n"
- " movntq %%mm0, 24(%0)\n"
- " movntq %%mm0, 32(%0)\n"
- " movntq %%mm0, 40(%0)\n"
- " movntq %%mm0, 48(%0)\n"
- " movntq %%mm0, 56(%0)\n"
- : : "r" (page) : "memory");
- page+=64;
- }
- /* since movntq is weakly-ordered, a "sfence" is needed to become
- * ordered again.
- */
- __asm__ __volatile__ (
- " sfence \n" : :
- );
- kernel_fpu_end();
-}
-
-static void fast_copy_page(void *to, void *from)
-{
- int i;
-
- kernel_fpu_begin();
-
- /* maybe the prefetch stuff can go before the expensive fnsave...
- * but that is for later. -AV
- */
- __asm__ __volatile__ (
- "1: prefetch (%0)\n"
- " prefetch 64(%0)\n"
- " prefetch 128(%0)\n"
- " prefetch 192(%0)\n"
- " prefetch 256(%0)\n"
- "2: \n"
- ".section .fixup, \"ax\"\n"
- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
- " jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
- : : "r" (from) );
-
- for(i=0; i<(4096-320)/64; i++)
- {
- __asm__ __volatile__ (
- "1: prefetch 320(%0)\n"
- "2: movq (%0), %%mm0\n"
- " movntq %%mm0, (%1)\n"
- " movq 8(%0), %%mm1\n"
- " movntq %%mm1, 8(%1)\n"
- " movq 16(%0), %%mm2\n"
- " movntq %%mm2, 16(%1)\n"
- " movq 24(%0), %%mm3\n"
- " movntq %%mm3, 24(%1)\n"
- " movq 32(%0), %%mm4\n"
- " movntq %%mm4, 32(%1)\n"
- " movq 40(%0), %%mm5\n"
- " movntq %%mm5, 40(%1)\n"
- " movq 48(%0), %%mm6\n"
- " movntq %%mm6, 48(%1)\n"
- " movq 56(%0), %%mm7\n"
- " movntq %%mm7, 56(%1)\n"
- ".section .fixup, \"ax\"\n"
- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
- " jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
- : : "r" (from), "r" (to) : "memory");
- from+=64;
- to+=64;
- }
- for(i=(4096-320)/64; i<4096/64; i++)
- {
- __asm__ __volatile__ (
- "2: movq (%0), %%mm0\n"
- " movntq %%mm0, (%1)\n"
- " movq 8(%0), %%mm1\n"
- " movntq %%mm1, 8(%1)\n"
- " movq 16(%0), %%mm2\n"
- " movntq %%mm2, 16(%1)\n"
- " movq 24(%0), %%mm3\n"
- " movntq %%mm3, 24(%1)\n"
- " movq 32(%0), %%mm4\n"
- " movntq %%mm4, 32(%1)\n"
- " movq 40(%0), %%mm5\n"
- " movntq %%mm5, 40(%1)\n"
- " movq 48(%0), %%mm6\n"
- " movntq %%mm6, 48(%1)\n"
- " movq 56(%0), %%mm7\n"
- " movntq %%mm7, 56(%1)\n"
- : : "r" (from), "r" (to) : "memory");
- from+=64;
- to+=64;
- }
- /* since movntq is weakly-ordered, a "sfence" is needed to become
- * ordered again.
- */
- __asm__ __volatile__ (
- " sfence \n" : :
- );
- kernel_fpu_end();
-}
-
-#else
-
-/*
- * Generic MMX implementation without K7 specific streaming
- */
-
-static void fast_clear_page(void *page)
-{
- int i;
-
- kernel_fpu_begin();
-
- __asm__ __volatile__ (
- " pxor %%mm0, %%mm0\n" : :
- );
-
- for(i=0;i<4096/128;i++)
- {
- __asm__ __volatile__ (
- " movq %%mm0, (%0)\n"
- " movq %%mm0, 8(%0)\n"
- " movq %%mm0, 16(%0)\n"
- " movq %%mm0, 24(%0)\n"
- " movq %%mm0, 32(%0)\n"
- " movq %%mm0, 40(%0)\n"
- " movq %%mm0, 48(%0)\n"
- " movq %%mm0, 56(%0)\n"
- " movq %%mm0, 64(%0)\n"
- " movq %%mm0, 72(%0)\n"
- " movq %%mm0, 80(%0)\n"
- " movq %%mm0, 88(%0)\n"
- " movq %%mm0, 96(%0)\n"
- " movq %%mm0, 104(%0)\n"
- " movq %%mm0, 112(%0)\n"
- " movq %%mm0, 120(%0)\n"
- : : "r" (page) : "memory");
- page+=128;
- }
-
- kernel_fpu_end();
-}
-
-static void fast_copy_page(void *to, void *from)
-{
- int i;
-
-
- kernel_fpu_begin();
-
- __asm__ __volatile__ (
- "1: prefetch (%0)\n"
- " prefetch 64(%0)\n"
- " prefetch 128(%0)\n"
- " prefetch 192(%0)\n"
- " prefetch 256(%0)\n"
- "2: \n"
- ".section .fixup, \"ax\"\n"
- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */
- " jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
- : : "r" (from) );
-
- for(i=0; i<4096/64; i++)
- {
- __asm__ __volatile__ (
- "1: prefetch 320(%0)\n"
- "2: movq (%0), %%mm0\n"
- " movq 8(%0), %%mm1\n"
- " movq 16(%0), %%mm2\n"
- " movq 24(%0), %%mm3\n"
- " movq %%mm0, (%1)\n"
- " movq %%mm1, 8(%1)\n"
- " movq %%mm2, 16(%1)\n"
- " movq %%mm3, 24(%1)\n"
- " movq 32(%0), %%mm0\n"
- " movq 40(%0), %%mm1\n"
- " movq 48(%0), %%mm2\n"
- " movq 56(%0), %%mm3\n"
- " movq %%mm0, 32(%1)\n"
- " movq %%mm1, 40(%1)\n"
- " movq %%mm2, 48(%1)\n"
- " movq %%mm3, 56(%1)\n"
- ".section .fixup, \"ax\"\n"
- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */
- " jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b, 3b\n"
- ".previous"
- : : "r" (from), "r" (to) : "memory");
- from+=64;
- to+=64;
- }
- kernel_fpu_end();
-}
-
-
-#endif
-
-/*
- * Favour MMX for page clear and copy.
- */
-
-static void slow_zero_page(void * page)
-{
- int d0, d1;
- __asm__ __volatile__( \
- "cld\n\t" \
- "rep ; stosl" \
- : "=&c" (d0), "=&D" (d1)
- :"a" (0),"1" (page),"0" (1024)
- :"memory");
-}
-
-void mmx_clear_page(void * page)
-{
- if(unlikely(in_interrupt()))
- slow_zero_page(page);
- else
- fast_clear_page(page);
-}
-
-static void slow_copy_page(void *to, void *from)
-{
- int d0, d1, d2;
- __asm__ __volatile__( \
- "cld\n\t" \
- "rep ; movsl" \
- : "=&c" (d0), "=&D" (d1), "=&S" (d2) \
- : "0" (1024),"1" ((long) to),"2" ((long) from) \
- : "memory");
-}
-
-
-void mmx_copy_page(void *to, void *from)
-{
- if(unlikely(in_interrupt()))
- slow_copy_page(to, from);
- else
- fast_copy_page(to, from);
-}
-
-EXPORT_SYMBOL(_mmx_memcpy);
-EXPORT_SYMBOL(mmx_clear_page);
-EXPORT_SYMBOL(mmx_copy_page);
diff --git a/arch/i386/lib/msr-on-cpu.c b/arch/i386/lib/msr-on-cpu.c
deleted file mode 100644
index 7767962f25d..00000000000
--- a/arch/i386/lib/msr-on-cpu.c
+++ /dev/null
@@ -1,119 +0,0 @@
-#include <linux/module.h>
-#include <linux/preempt.h>
-#include <linux/smp.h>
-#include <asm/msr.h>
-
-struct msr_info {
- u32 msr_no;
- u32 l, h;
- int err;
-};
-
-static void __rdmsr_on_cpu(void *info)
-{
- struct msr_info *rv = info;
-
- rdmsr(rv->msr_no, rv->l, rv->h);
-}
-
-static void __rdmsr_safe_on_cpu(void *info)
-{
- struct msr_info *rv = info;
-
- rv->err = rdmsr_safe(rv->msr_no, &rv->l, &rv->h);
-}
-
-static int _rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h, int safe)
-{
- int err = 0;
- preempt_disable();
- if (smp_processor_id() == cpu)
- if (safe)
- err = rdmsr_safe(msr_no, l, h);
- else
- rdmsr(msr_no, *l, *h);
- else {
- struct msr_info rv;
-
- rv.msr_no = msr_no;
- if (safe) {
- smp_call_function_single(cpu, __rdmsr_safe_on_cpu,
- &rv, 0, 1);
- err = rv.err;
- } else {
- smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 0, 1);
- }
- *l = rv.l;
- *h = rv.h;
- }
- preempt_enable();
- return err;
-}
-
-static void __wrmsr_on_cpu(void *info)
-{
- struct msr_info *rv = info;
-
- wrmsr(rv->msr_no, rv->l, rv->h);
-}
-
-static void __wrmsr_safe_on_cpu(void *info)
-{
- struct msr_info *rv = info;
-
- rv->err = wrmsr_safe(rv->msr_no, rv->l, rv->h);
-}
-
-static int _wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h, int safe)
-{
- int err = 0;
- preempt_disable();
- if (smp_processor_id() == cpu)
- if (safe)
- err = wrmsr_safe(msr_no, l, h);
- else
- wrmsr(msr_no, l, h);
- else {
- struct msr_info rv;
-
- rv.msr_no = msr_no;
- rv.l = l;
- rv.h = h;
- if (safe) {
- smp_call_function_single(cpu, __wrmsr_safe_on_cpu,
- &rv, 0, 1);
- err = rv.err;
- } else {
- smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 0, 1);
- }
- }
- preempt_enable();
- return err;
-}
-
-void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
-{
- _wrmsr_on_cpu(cpu, msr_no, l, h, 0);
-}
-
-void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
-{
- _rdmsr_on_cpu(cpu, msr_no, l, h, 0);
-}
-
-/* These "safe" variants are slower and should be used when the target MSR
- may not actually exist. */
-int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
-{
- return _wrmsr_on_cpu(cpu, msr_no, l, h, 1);
-}
-
-int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
-{
- return _rdmsr_on_cpu(cpu, msr_no, l, h, 1);
-}
-
-EXPORT_SYMBOL(rdmsr_on_cpu);
-EXPORT_SYMBOL(wrmsr_on_cpu);
-EXPORT_SYMBOL(rdmsr_safe_on_cpu);
-EXPORT_SYMBOL(wrmsr_safe_on_cpu);
diff --git a/arch/i386/lib/putuser_32.S b/arch/i386/lib/putuser_32.S
deleted file mode 100644
index f58fba109d1..00000000000
--- a/arch/i386/lib/putuser_32.S
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * __put_user functions.
- *
- * (C) Copyright 2005 Linus Torvalds
- *
- * These functions have a non-standard call interface
- * to make them more efficient, especially as they
- * return an error value in addition to the "real"
- * return value.
- */
-#include <linux/linkage.h>
-#include <asm/dwarf2.h>
-#include <asm/thread_info.h>
-
-
-/*
- * __put_user_X
- *
- * Inputs: %eax[:%edx] contains the data
- * %ecx contains the address
- *
- * Outputs: %eax is error code (0 or -EFAULT)
- *
- * These functions should not modify any other registers,
- * as they get called from within inline assembly.
- */
-
-#define ENTER CFI_STARTPROC ; \
- pushl %ebx ; \
- CFI_ADJUST_CFA_OFFSET 4 ; \
- CFI_REL_OFFSET ebx, 0 ; \
- GET_THREAD_INFO(%ebx)
-#define EXIT popl %ebx ; \
- CFI_ADJUST_CFA_OFFSET -4 ; \
- CFI_RESTORE ebx ; \
- ret ; \
- CFI_ENDPROC
-
-.text
-ENTRY(__put_user_1)
- ENTER
- cmpl TI_addr_limit(%ebx),%ecx
- jae bad_put_user
-1: movb %al,(%ecx)
- xorl %eax,%eax
- EXIT
-ENDPROC(__put_user_1)
-
-ENTRY(__put_user_2)
- ENTER
- movl TI_addr_limit(%ebx),%ebx
- subl $1,%ebx
- cmpl %ebx,%ecx
- jae bad_put_user
-2: movw %ax,(%ecx)
- xorl %eax,%eax
- EXIT
-ENDPROC(__put_user_2)
-
-ENTRY(__put_user_4)
- ENTER
- movl TI_addr_limit(%ebx),%ebx
- subl $3,%ebx
- cmpl %ebx,%ecx
- jae bad_put_user
-3: movl %eax,(%ecx)
- xorl %eax,%eax
- EXIT
-ENDPROC(__put_user_4)
-
-ENTRY(__put_user_8)
- ENTER
- movl TI_addr_limit(%ebx),%ebx
- subl $7,%ebx
- cmpl %ebx,%ecx
- jae bad_put_user
-4: movl %eax,(%ecx)
-5: movl %edx,4(%ecx)
- xorl %eax,%eax
- EXIT
-ENDPROC(__put_user_8)
-
-bad_put_user:
- CFI_STARTPROC simple
- CFI_DEF_CFA esp, 2*4
- CFI_OFFSET eip, -1*4
- CFI_OFFSET ebx, -2*4
- movl $-14,%eax
- EXIT
-END(bad_put_user)
-
-.section __ex_table,"a"
- .long 1b,bad_put_user
- .long 2b,bad_put_user
- .long 3b,bad_put_user
- .long 4b,bad_put_user
- .long 5b,bad_put_user
-.previous
diff --git a/arch/i386/lib/semaphore_32.S b/arch/i386/lib/semaphore_32.S
deleted file mode 100644
index c01eb39c0b4..00000000000
--- a/arch/i386/lib/semaphore_32.S
+++ /dev/null
@@ -1,219 +0,0 @@
-/*
- * i386 semaphore implementation.
- *
- * (C) Copyright 1999 Linus Torvalds
- *
- * Portions Copyright 1999 Red Hat, Inc.
- *
- * 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.
- *
- * rw semaphores implemented November 1999 by Benjamin LaHaise <bcrl@kvack.org>
- */
-
-#include <linux/linkage.h>
-#include <asm/rwlock.h>
-#include <asm/alternative-asm.i>
-#include <asm/frame.i>
-#include <asm/dwarf2.h>
-
-/*
- * The semaphore operations have a special calling sequence that
- * allow us to do a simpler in-line version of them. These routines
- * need to convert that sequence back into the C sequence when
- * there is contention on the semaphore.
- *
- * %eax contains the semaphore pointer on entry. Save the C-clobbered
- * registers (%eax, %edx and %ecx) except %eax whish is either a return
- * value or just clobbered..
- */
- .section .sched.text
-ENTRY(__down_failed)
- CFI_STARTPROC
- FRAME
- pushl %edx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET edx,0
- pushl %ecx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ecx,0
- call __down
- popl %ecx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE ecx
- popl %edx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE edx
- ENDFRAME
- ret
- CFI_ENDPROC
- END(__down_failed)
-
-ENTRY(__down_failed_interruptible)
- CFI_STARTPROC
- FRAME
- pushl %edx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET edx,0
- pushl %ecx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ecx,0
- call __down_interruptible
- popl %ecx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE ecx
- popl %edx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE edx
- ENDFRAME
- ret
- CFI_ENDPROC
- END(__down_failed_interruptible)
-
-ENTRY(__down_failed_trylock)
- CFI_STARTPROC
- FRAME
- pushl %edx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET edx,0
- pushl %ecx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ecx,0
- call __down_trylock
- popl %ecx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE ecx
- popl %edx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE edx
- ENDFRAME
- ret
- CFI_ENDPROC
- END(__down_failed_trylock)
-
-ENTRY(__up_wakeup)
- CFI_STARTPROC
- FRAME
- pushl %edx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET edx,0
- pushl %ecx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ecx,0
- call __up
- popl %ecx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE ecx
- popl %edx
- CFI_ADJUST_CFA_OFFSET -4
- CFI_RESTORE edx
- ENDFRAME
- ret
- CFI_ENDPROC
- END(__up_wakeup)
-
-/*
- * rw spinlock fallbacks
- */
-#ifdef CONFIG_SMP
-ENTRY(__write_lock_failed)
- CFI_STARTPROC simple
- FRAME
-2: LOCK_PREFIX
- addl $ RW_LOCK_BIAS,(%eax)
-1: rep; nop
- cmpl $ RW_LOCK_BIAS,(%eax)
- jne 1b
- LOCK_PREFIX
- subl $ RW_LOCK_BIAS,(%eax)
- jnz 2b
- ENDFRAME
- ret
- CFI_ENDPROC
- END(__write_lock_failed)
-
-ENTRY(__read_lock_failed)
- CFI_STARTPROC
- FRAME
-2: LOCK_PREFIX
- incl (%eax)
-1: rep; nop
- cmpl $1,(%eax)
- js 1b
- LOCK_PREFIX
- decl (%eax)
- js 2b
- ENDFRAME
- ret
- CFI_ENDPROC
- END(__read_lock_failed)
-
-#endif
-
-#ifdef CONFIG_RWSEM_XCHGADD_ALGORITHM
-
-/* Fix up special calling conventions */
-ENTRY(call_rwsem_down_read_failed)
- CFI_STARTPROC
- push %ecx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ecx,0
- push %edx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET edx,0
- call rwsem_down_read_failed
- pop %edx
- CFI_ADJUST_CFA_OFFSET -4
- pop %ecx
- CFI_ADJUST_CFA_OFFSET -4
- ret
- CFI_ENDPROC
- END(call_rwsem_down_read_failed)
-
-ENTRY(call_rwsem_down_write_failed)
- CFI_STARTPROC
- push %ecx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ecx,0
- calll rwsem_down_write_failed
- pop %ecx
- CFI_ADJUST_CFA_OFFSET -4
- ret
- CFI_ENDPROC
- END(call_rwsem_down_write_failed)
-
-ENTRY(call_rwsem_wake)
- CFI_STARTPROC
- decw %dx /* do nothing if still outstanding active readers */
- jnz 1f
- push %ecx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ecx,0
- call rwsem_wake
- pop %ecx
- CFI_ADJUST_CFA_OFFSET -4
-1: ret
- CFI_ENDPROC
- END(call_rwsem_wake)
-
-/* Fix up special calling conventions */
-ENTRY(call_rwsem_downgrade_wake)
- CFI_STARTPROC
- push %ecx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET ecx,0
- push %edx
- CFI_ADJUST_CFA_OFFSET 4
- CFI_REL_OFFSET edx,0
- call rwsem_downgrade_wake
- pop %edx
- CFI_ADJUST_CFA_OFFSET -4
- pop %ecx
- CFI_ADJUST_CFA_OFFSET -4
- ret
- CFI_ENDPROC
- END(call_rwsem_downgrade_wake)
-
-#endif
diff --git a/arch/i386/lib/string_32.c b/arch/i386/lib/string_32.c
deleted file mode 100644
index 2c773fefa3d..00000000000
--- a/arch/i386/lib/string_32.c
+++ /dev/null
@@ -1,257 +0,0 @@
-/*
- * Most of the string-functions are rather heavily hand-optimized,
- * see especially strsep,strstr,str[c]spn. They should work, but are not
- * very easy to understand. Everything is done entirely within the register
- * set, making the functions fast and clean. String instructions have been
- * used through-out, making for "slightly" unclear code :-)
- *
- * AK: On P4 and K7 using non string instruction implementations might be faster
- * for large memory blocks. But most of them are unlikely to be used on large
- * strings.
- */
-
-#include <linux/string.h>
-#include <linux/module.h>
-
-#ifdef __HAVE_ARCH_STRCPY
-char *strcpy(char * dest,const char *src)
-{
- int d0, d1, d2;
- asm volatile( "1:\tlodsb\n\t"
- "stosb\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b"
- : "=&S" (d0), "=&D" (d1), "=&a" (d2)
- :"0" (src),"1" (dest) : "memory");
- return dest;
-}
-EXPORT_SYMBOL(strcpy);
-#endif
-
-#ifdef __HAVE_ARCH_STRNCPY
-char *strncpy(char * dest,const char *src,size_t count)
-{
- int d0, d1, d2, d3;
- asm volatile( "1:\tdecl %2\n\t"
- "js 2f\n\t"
- "lodsb\n\t"
- "stosb\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b\n\t"
- "rep\n\t"
- "stosb\n"
- "2:"
- : "=&S" (d0), "=&D" (d1), "=&c" (d2), "=&a" (d3)
- :"0" (src),"1" (dest),"2" (count) : "memory");
- return dest;
-}
-EXPORT_SYMBOL(strncpy);
-#endif
-
-#ifdef __HAVE_ARCH_STRCAT
-char *strcat(char * dest,const char * src)
-{
- int d0, d1, d2, d3;
- asm volatile( "repne\n\t"
- "scasb\n\t"
- "decl %1\n"
- "1:\tlodsb\n\t"
- "stosb\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b"
- : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
- : "0" (src), "1" (dest), "2" (0), "3" (0xffffffffu): "memory");
- return dest;
-}
-EXPORT_SYMBOL(strcat);
-#endif
-
-#ifdef __HAVE_ARCH_STRNCAT
-char *strncat(char * dest,const char * src,size_t count)
-{
- int d0, d1, d2, d3;
- asm volatile( "repne\n\t"
- "scasb\n\t"
- "decl %1\n\t"
- "movl %8,%3\n"
- "1:\tdecl %3\n\t"
- "js 2f\n\t"
- "lodsb\n\t"
- "stosb\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b\n"
- "2:\txorl %2,%2\n\t"
- "stosb"
- : "=&S" (d0), "=&D" (d1), "=&a" (d2), "=&c" (d3)
- : "0" (src),"1" (dest),"2" (0),"3" (0xffffffffu), "g" (count)
- : "memory");
- return dest;
-}
-EXPORT_SYMBOL(strncat);
-#endif
-
-#ifdef __HAVE_ARCH_STRCMP
-int strcmp(const char * cs,const char * ct)
-{
- int d0, d1;
- int res;
- asm volatile( "1:\tlodsb\n\t"
- "scasb\n\t"
- "jne 2f\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b\n\t"
- "xorl %%eax,%%eax\n\t"
- "jmp 3f\n"
- "2:\tsbbl %%eax,%%eax\n\t"
- "orb $1,%%al\n"
- "3:"
- :"=a" (res), "=&S" (d0), "=&D" (d1)
- :"1" (cs),"2" (ct)
- :"memory");
- return res;
-}
-EXPORT_SYMBOL(strcmp);
-#endif
-
-#ifdef __HAVE_ARCH_STRNCMP
-int strncmp(const char * cs,const char * ct,size_t count)
-{
- int res;
- int d0, d1, d2;
- asm volatile( "1:\tdecl %3\n\t"
- "js 2f\n\t"
- "lodsb\n\t"
- "scasb\n\t"
- "jne 3f\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b\n"
- "2:\txorl %%eax,%%eax\n\t"
- "jmp 4f\n"
- "3:\tsbbl %%eax,%%eax\n\t"
- "orb $1,%%al\n"
- "4:"
- :"=a" (res), "=&S" (d0), "=&D" (d1), "=&c" (d2)
- :"1" (cs),"2" (ct),"3" (count)
- :"memory");
- return res;
-}
-EXPORT_SYMBOL(strncmp);
-#endif
-
-#ifdef __HAVE_ARCH_STRCHR
-char *strchr(const char * s, int c)
-{
- int d0;
- char * res;
- asm volatile( "movb %%al,%%ah\n"
- "1:\tlodsb\n\t"
- "cmpb %%ah,%%al\n\t"
- "je 2f\n\t"
- "testb %%al,%%al\n\t"
- "jne 1b\n\t"
- "movl $1,%1\n"
- "2:\tmovl %1,%0\n\t"
- "decl %0"
- :"=a" (res), "=&S" (d0)
- :"1" (s),"0" (c)
- :"memory");
- return res;
-}
-EXPORT_SYMBOL(strchr);
-#endif
-
-#ifdef __HAVE_ARCH_STRRCHR
-char *strrchr(const char * s, int c)
-{
- int d0, d1;
- char * res;
- asm volatile( "movb %%al,%%ah\n"
- "1:\tlodsb\n\t"
- "cmpb %%ah,%%al\n\t"
- "jne 2f\n\t"
- "leal -1(%%esi),%0\n"
- "2:\ttestb %%al,%%al\n\t"
- "jne 1b"
- :"=g" (res), "=&S" (d0), "=&a" (d1)
- :"0" (0),"1" (s),"2" (c)
- :"memory");
- return res;
-}
-EXPORT_SYMBOL(strrchr);
-#endif
-
-#ifdef __HAVE_ARCH_STRLEN
-size_t strlen(const char * s)
-{
- int d0;
- int res;
- asm volatile( "repne\n\t"
- "scasb\n\t"
- "notl %0\n\t"
- "decl %0"
- :"=c" (res), "=&D" (d0)
- :"1" (s),"a" (0), "0" (0xffffffffu)
- :"memory");
- return res;
-}
-EXPORT_SYMBOL(strlen);
-#endif
-
-#ifdef __HAVE_ARCH_MEMCHR
-void *memchr(const void *cs,int c,size_t count)
-{
- int d0;
- void *res;
- if (!count)
- return NULL;
- asm volatile( "repne\n\t"
- "scasb\n\t"
- "je 1f\n\t"
- "movl $1,%0\n"
- "1:\tdecl %0"
- :"=D" (res), "=&c" (d0)
- :"a" (c),"0" (cs),"1" (count)
- :"memory");
- return res;
-}
-EXPORT_SYMBOL(memchr);
-#endif
-
-#ifdef __HAVE_ARCH_MEMSCAN
-void *memscan(void * addr, int c, size_t size)
-{
- if (!size)
- return addr;
- asm volatile("repnz; scasb\n\t"
- "jnz 1f\n\t"
- "dec %%edi\n"
- "1:"
- : "=D" (addr), "=c" (size)
- : "0" (addr), "1" (size), "a" (c)
- : "memory");
- return addr;
-}
-EXPORT_SYMBOL(memscan);
-#endif
-
-#ifdef __HAVE_ARCH_STRNLEN
-size_t strnlen(const char *s, size_t count)
-{
- int d0;
- int res;
- asm volatile( "movl %2,%0\n\t"
- "jmp 2f\n"
- "1:\tcmpb $0,(%0)\n\t"
- "je 3f\n\t"
- "incl %0\n"
- "2:\tdecl %1\n\t"
- "cmpl $-1,%1\n\t"
- "jne 1b\n"
- "3:\tsubl %2,%0"
- :"=a" (res), "=&d" (d0)
- :"c" (s),"1" (count)
- :"memory");
- return res;
-}
-EXPORT_SYMBOL(strnlen);
-#endif
diff --git a/arch/i386/lib/strstr_32.c b/arch/i386/lib/strstr_32.c
deleted file mode 100644
index a3dafbf59da..00000000000
--- a/arch/i386/lib/strstr_32.c
+++ /dev/null
@@ -1,31 +0,0 @@
-#include <linux/string.h>
-
-char * strstr(const char * cs,const char * ct)
-{
-int d0, d1;
-register char * __res;
-__asm__ __volatile__(
- "movl %6,%%edi\n\t"
- "repne\n\t"
- "scasb\n\t"
- "notl %%ecx\n\t"
- "decl %%ecx\n\t" /* NOTE! This also sets Z if searchstring='' */
- "movl %%ecx,%%edx\n"
- "1:\tmovl %6,%%edi\n\t"
- "movl %%esi,%%eax\n\t"
- "movl %%edx,%%ecx\n\t"
- "repe\n\t"
- "cmpsb\n\t"
- "je 2f\n\t" /* also works for empty string, see above */
- "xchgl %%eax,%%esi\n\t"
- "incl %%esi\n\t"
- "cmpb $0,-1(%%eax)\n\t"
- "jne 1b\n\t"
- "xorl %%eax,%%eax\n\t"
- "2:"
- :"=a" (__res), "=&c" (d0), "=&S" (d1)
- :"0" (0), "1" (0xffffffff), "2" (cs), "g" (ct)
- :"dx", "di");
-return __res;
-}
-
diff --git a/arch/i386/lib/usercopy_32.c b/arch/i386/lib/usercopy_32.c
deleted file mode 100644
index 9f38b12b4af..00000000000
--- a/arch/i386/lib/usercopy_32.c
+++ /dev/null
@@ -1,882 +0,0 @@
-/*
- * User address space access functions.
- * The non inlined parts of asm-i386/uaccess.h are here.
- *
- * Copyright 1997 Andi Kleen <ak@muc.de>
- * Copyright 1997 Linus Torvalds
- */
-#include <linux/mm.h>
-#include <linux/highmem.h>
-#include <linux/blkdev.h>
-#include <linux/module.h>
-#include <linux/backing-dev.h>
-#include <linux/interrupt.h>
-#include <asm/uaccess.h>
-#include <asm/mmx.h>
-
-static inline int __movsl_is_ok(unsigned long a1, unsigned long a2, unsigned long n)
-{
-#ifdef CONFIG_X86_INTEL_USERCOPY
- if (n >= 64 && ((a1 ^ a2) & movsl_mask.mask))
- return 0;
-#endif
- return 1;
-}
-#define movsl_is_ok(a1,a2,n) \
- __movsl_is_ok((unsigned long)(a1),(unsigned long)(a2),(n))
-
-/*
- * Copy a null terminated string from userspace.
- */
-
-#define __do_strncpy_from_user(dst,src,count,res) \
-do { \
- int __d0, __d1, __d2; \
- might_sleep(); \
- __asm__ __volatile__( \
- " testl %1,%1\n" \
- " jz 2f\n" \
- "0: lodsb\n" \
- " stosb\n" \
- " testb %%al,%%al\n" \
- " jz 1f\n" \
- " decl %1\n" \
- " jnz 0b\n" \
- "1: subl %1,%0\n" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3: movl %5,%0\n" \
- " jmp 2b\n" \
- ".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 4\n" \
- " .long 0b,3b\n" \
- ".previous" \
- : "=d"(res), "=c"(count), "=&a" (__d0), "=&S" (__d1), \
- "=&D" (__d2) \
- : "i"(-EFAULT), "0"(count), "1"(count), "3"(src), "4"(dst) \
- : "memory"); \
-} while (0)
-
-/**
- * __strncpy_from_user: - Copy a NUL terminated string from userspace, with less checking.
- * @dst: Destination address, in kernel space. This buffer must be at
- * least @count bytes long.
- * @src: Source address, in user space.
- * @count: Maximum number of bytes to copy, including the trailing NUL.
- *
- * Copies a NUL-terminated string from userspace to kernel space.
- * Caller must check the specified block with access_ok() before calling
- * this function.
- *
- * On success, returns the length of the string (not including the trailing
- * NUL).
- *
- * If access to userspace fails, returns -EFAULT (some data may have been
- * copied).
- *
- * If @count is smaller than the length of the string, copies @count bytes
- * and returns @count.
- */
-long
-__strncpy_from_user(char *dst, const char __user *src, long count)
-{
- long res;
- __do_strncpy_from_user(dst, src, count, res);
- return res;
-}
-EXPORT_SYMBOL(__strncpy_from_user);
-
-/**
- * strncpy_from_user: - Copy a NUL terminated string from userspace.
- * @dst: Destination address, in kernel space. This buffer must be at
- * least @count bytes long.
- * @src: Source address, in user space.
- * @count: Maximum number of bytes to copy, including the trailing NUL.
- *
- * Copies a NUL-terminated string from userspace to kernel space.
- *
- * On success, returns the length of the string (not including the trailing
- * NUL).
- *
- * If access to userspace fails, returns -EFAULT (some data may have been
- * copied).
- *
- * If @count is smaller than the length of the string, copies @count bytes
- * and returns @count.
- */
-long
-strncpy_from_user(char *dst, const char __user *src, long count)
-{
- long res = -EFAULT;
- if (access_ok(VERIFY_READ, src, 1))
- __do_strncpy_from_user(dst, src, count, res);
- return res;
-}
-EXPORT_SYMBOL(strncpy_from_user);
-
-/*
- * Zero Userspace
- */
-
-#define __do_clear_user(addr,size) \
-do { \
- int __d0; \
- might_sleep(); \
- __asm__ __volatile__( \
- "0: rep; stosl\n" \
- " movl %2,%0\n" \
- "1: rep; stosb\n" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3: lea 0(%2,%0,4),%0\n" \
- " jmp 2b\n" \
- ".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 4\n" \
- " .long 0b,3b\n" \
- " .long 1b,2b\n" \
- ".previous" \
- : "=&c"(size), "=&D" (__d0) \
- : "r"(size & 3), "0"(size / 4), "1"(addr), "a"(0)); \
-} while (0)
-
-/**
- * clear_user: - Zero a block of memory in user space.
- * @to: Destination address, in user space.
- * @n: Number of bytes to zero.
- *
- * Zero a block of memory in user space.
- *
- * Returns number of bytes that could not be cleared.
- * On success, this will be zero.
- */
-unsigned long
-clear_user(void __user *to, unsigned long n)
-{
- might_sleep();
- if (access_ok(VERIFY_WRITE, to, n))
- __do_clear_user(to, n);
- return n;
-}
-EXPORT_SYMBOL(clear_user);
-
-/**
- * __clear_user: - Zero a block of memory in user space, with less checking.
- * @to: Destination address, in user space.
- * @n: Number of bytes to zero.
- *
- * Zero a block of memory in user space. Caller must check
- * the specified block with access_ok() before calling this function.
- *
- * Returns number of bytes that could not be cleared.
- * On success, this will be zero.
- */
-unsigned long
-__clear_user(void __user *to, unsigned long n)
-{
- __do_clear_user(to, n);
- return n;
-}
-EXPORT_SYMBOL(__clear_user);
-
-/**
- * strnlen_user: - Get the size of a string in user space.
- * @s: The string to measure.
- * @n: The maximum valid length
- *
- * Get the size of a NUL-terminated string in user space.
- *
- * Returns the size of the string INCLUDING the terminating NUL.
- * On exception, returns 0.
- * If the string is too long, returns a value greater than @n.
- */
-long strnlen_user(const char __user *s, long n)
-{
- unsigned long mask = -__addr_ok(s);
- unsigned long res, tmp;
-
- might_sleep();
-
- __asm__ __volatile__(
- " testl %0, %0\n"
- " jz 3f\n"
- " andl %0,%%ecx\n"
- "0: repne; scasb\n"
- " setne %%al\n"
- " subl %%ecx,%0\n"
- " addl %0,%%eax\n"
- "1:\n"
- ".section .fixup,\"ax\"\n"
- "2: xorl %%eax,%%eax\n"
- " jmp 1b\n"
- "3: movb $1,%%al\n"
- " jmp 1b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 0b,2b\n"
- ".previous"
- :"=r" (n), "=D" (s), "=a" (res), "=c" (tmp)
- :"0" (n), "1" (s), "2" (0), "3" (mask)
- :"cc");
- return res & mask;
-}
-EXPORT_SYMBOL(strnlen_user);
-
-#ifdef CONFIG_X86_INTEL_USERCOPY
-static unsigned long
-__copy_user_intel(void __user *to, const void *from, unsigned long size)
-{
- int d0, d1;
- __asm__ __volatile__(
- " .align 2,0x90\n"
- "1: movl 32(%4), %%eax\n"
- " cmpl $67, %0\n"
- " jbe 3f\n"
- "2: movl 64(%4), %%eax\n"
- " .align 2,0x90\n"
- "3: movl 0(%4), %%eax\n"
- "4: movl 4(%4), %%edx\n"
- "5: movl %%eax, 0(%3)\n"
- "6: movl %%edx, 4(%3)\n"
- "7: movl 8(%4), %%eax\n"
- "8: movl 12(%4),%%edx\n"
- "9: movl %%eax, 8(%3)\n"
- "10: movl %%edx, 12(%3)\n"
- "11: movl 16(%4), %%eax\n"
- "12: movl 20(%4), %%edx\n"
- "13: movl %%eax, 16(%3)\n"
- "14: movl %%edx, 20(%3)\n"
- "15: movl 24(%4), %%eax\n"
- "16: movl 28(%4), %%edx\n"
- "17: movl %%eax, 24(%3)\n"
- "18: movl %%edx, 28(%3)\n"
- "19: movl 32(%4), %%eax\n"
- "20: movl 36(%4), %%edx\n"
- "21: movl %%eax, 32(%3)\n"
- "22: movl %%edx, 36(%3)\n"
- "23: movl 40(%4), %%eax\n"
- "24: movl 44(%4), %%edx\n"
- "25: movl %%eax, 40(%3)\n"
- "26: movl %%edx, 44(%3)\n"
- "27: movl 48(%4), %%eax\n"
- "28: movl 52(%4), %%edx\n"
- "29: movl %%eax, 48(%3)\n"
- "30: movl %%edx, 52(%3)\n"
- "31: movl 56(%4), %%eax\n"
- "32: movl 60(%4), %%edx\n"
- "33: movl %%eax, 56(%3)\n"
- "34: movl %%edx, 60(%3)\n"
- " addl $-64, %0\n"
- " addl $64, %4\n"
- " addl $64, %3\n"
- " cmpl $63, %0\n"
- " ja 1b\n"
- "35: movl %0, %%eax\n"
- " shrl $2, %0\n"
- " andl $3, %%eax\n"
- " cld\n"
- "99: rep; movsl\n"
- "36: movl %%eax, %0\n"
- "37: rep; movsb\n"
- "100:\n"
- ".section .fixup,\"ax\"\n"
- "101: lea 0(%%eax,%0,4),%0\n"
- " jmp 100b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 1b,100b\n"
- " .long 2b,100b\n"
- " .long 3b,100b\n"
- " .long 4b,100b\n"
- " .long 5b,100b\n"
- " .long 6b,100b\n"
- " .long 7b,100b\n"
- " .long 8b,100b\n"
- " .long 9b,100b\n"
- " .long 10b,100b\n"
- " .long 11b,100b\n"
- " .long 12b,100b\n"
- " .long 13b,100b\n"
- " .long 14b,100b\n"
- " .long 15b,100b\n"
- " .long 16b,100b\n"
- " .long 17b,100b\n"
- " .long 18b,100b\n"
- " .long 19b,100b\n"
- " .long 20b,100b\n"
- " .long 21b,100b\n"
- " .long 22b,100b\n"
- " .long 23b,100b\n"
- " .long 24b,100b\n"
- " .long 25b,100b\n"
- " .long 26b,100b\n"
- " .long 27b,100b\n"
- " .long 28b,100b\n"
- " .long 29b,100b\n"
- " .long 30b,100b\n"
- " .long 31b,100b\n"
- " .long 32b,100b\n"
- " .long 33b,100b\n"
- " .long 34b,100b\n"
- " .long 35b,100b\n"
- " .long 36b,100b\n"
- " .long 37b,100b\n"
- " .long 99b,101b\n"
- ".previous"
- : "=&c"(size), "=&D" (d0), "=&S" (d1)
- : "1"(to), "2"(from), "0"(size)
- : "eax", "edx", "memory");
- return size;
-}
-
-static unsigned long
-__copy_user_zeroing_intel(void *to, const void __user *from, unsigned long size)
-{
- int d0, d1;
- __asm__ __volatile__(
- " .align 2,0x90\n"
- "0: movl 32(%4), %%eax\n"
- " cmpl $67, %0\n"
- " jbe 2f\n"
- "1: movl 64(%4), %%eax\n"
- " .align 2,0x90\n"
- "2: movl 0(%4), %%eax\n"
- "21: movl 4(%4), %%edx\n"
- " movl %%eax, 0(%3)\n"
- " movl %%edx, 4(%3)\n"
- "3: movl 8(%4), %%eax\n"
- "31: movl 12(%4),%%edx\n"
- " movl %%eax, 8(%3)\n"
- " movl %%edx, 12(%3)\n"
- "4: movl 16(%4), %%eax\n"
- "41: movl 20(%4), %%edx\n"
- " movl %%eax, 16(%3)\n"
- " movl %%edx, 20(%3)\n"
- "10: movl 24(%4), %%eax\n"
- "51: movl 28(%4), %%edx\n"
- " movl %%eax, 24(%3)\n"
- " movl %%edx, 28(%3)\n"
- "11: movl 32(%4), %%eax\n"
- "61: movl 36(%4), %%edx\n"
- " movl %%eax, 32(%3)\n"
- " movl %%edx, 36(%3)\n"
- "12: movl 40(%4), %%eax\n"
- "71: movl 44(%4), %%edx\n"
- " movl %%eax, 40(%3)\n"
- " movl %%edx, 44(%3)\n"
- "13: movl 48(%4), %%eax\n"
- "81: movl 52(%4), %%edx\n"
- " movl %%eax, 48(%3)\n"
- " movl %%edx, 52(%3)\n"
- "14: movl 56(%4), %%eax\n"
- "91: movl 60(%4), %%edx\n"
- " movl %%eax, 56(%3)\n"
- " movl %%edx, 60(%3)\n"
- " addl $-64, %0\n"
- " addl $64, %4\n"
- " addl $64, %3\n"
- " cmpl $63, %0\n"
- " ja 0b\n"
- "5: movl %0, %%eax\n"
- " shrl $2, %0\n"
- " andl $3, %%eax\n"
- " cld\n"
- "6: rep; movsl\n"
- " movl %%eax,%0\n"
- "7: rep; movsb\n"
- "8:\n"
- ".section .fixup,\"ax\"\n"
- "9: lea 0(%%eax,%0,4),%0\n"
- "16: pushl %0\n"
- " pushl %%eax\n"
- " xorl %%eax,%%eax\n"
- " rep; stosb\n"
- " popl %%eax\n"
- " popl %0\n"
- " jmp 8b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 0b,16b\n"
- " .long 1b,16b\n"
- " .long 2b,16b\n"
- " .long 21b,16b\n"
- " .long 3b,16b\n"
- " .long 31b,16b\n"
- " .long 4b,16b\n"
- " .long 41b,16b\n"
- " .long 10b,16b\n"
- " .long 51b,16b\n"
- " .long 11b,16b\n"
- " .long 61b,16b\n"
- " .long 12b,16b\n"
- " .long 71b,16b\n"
- " .long 13b,16b\n"
- " .long 81b,16b\n"
- " .long 14b,16b\n"
- " .long 91b,16b\n"
- " .long 6b,9b\n"
- " .long 7b,16b\n"
- ".previous"
- : "=&c"(size), "=&D" (d0), "=&S" (d1)
- : "1"(to), "2"(from), "0"(size)
- : "eax", "edx", "memory");
- return size;
-}
-
-/*
- * Non Temporal Hint version of __copy_user_zeroing_intel. It is cache aware.
- * hyoshiok@miraclelinux.com
- */
-
-static unsigned long __copy_user_zeroing_intel_nocache(void *to,
- const void __user *from, unsigned long size)
-{
- int d0, d1;
-
- __asm__ __volatile__(
- " .align 2,0x90\n"
- "0: movl 32(%4), %%eax\n"
- " cmpl $67, %0\n"
- " jbe 2f\n"
- "1: movl 64(%4), %%eax\n"
- " .align 2,0x90\n"
- "2: movl 0(%4), %%eax\n"
- "21: movl 4(%4), %%edx\n"
- " movnti %%eax, 0(%3)\n"
- " movnti %%edx, 4(%3)\n"
- "3: movl 8(%4), %%eax\n"
- "31: movl 12(%4),%%edx\n"
- " movnti %%eax, 8(%3)\n"
- " movnti %%edx, 12(%3)\n"
- "4: movl 16(%4), %%eax\n"
- "41: movl 20(%4), %%edx\n"
- " movnti %%eax, 16(%3)\n"
- " movnti %%edx, 20(%3)\n"
- "10: movl 24(%4), %%eax\n"
- "51: movl 28(%4), %%edx\n"
- " movnti %%eax, 24(%3)\n"
- " movnti %%edx, 28(%3)\n"
- "11: movl 32(%4), %%eax\n"
- "61: movl 36(%4), %%edx\n"
- " movnti %%eax, 32(%3)\n"
- " movnti %%edx, 36(%3)\n"
- "12: movl 40(%4), %%eax\n"
- "71: movl 44(%4), %%edx\n"
- " movnti %%eax, 40(%3)\n"
- " movnti %%edx, 44(%3)\n"
- "13: movl 48(%4), %%eax\n"
- "81: movl 52(%4), %%edx\n"
- " movnti %%eax, 48(%3)\n"
- " movnti %%edx, 52(%3)\n"
- "14: movl 56(%4), %%eax\n"
- "91: movl 60(%4), %%edx\n"
- " movnti %%eax, 56(%3)\n"
- " movnti %%edx, 60(%3)\n"
- " addl $-64, %0\n"
- " addl $64, %4\n"
- " addl $64, %3\n"
- " cmpl $63, %0\n"
- " ja 0b\n"
- " sfence \n"
- "5: movl %0, %%eax\n"
- " shrl $2, %0\n"
- " andl $3, %%eax\n"
- " cld\n"
- "6: rep; movsl\n"
- " movl %%eax,%0\n"
- "7: rep; movsb\n"
- "8:\n"
- ".section .fixup,\"ax\"\n"
- "9: lea 0(%%eax,%0,4),%0\n"
- "16: pushl %0\n"
- " pushl %%eax\n"
- " xorl %%eax,%%eax\n"
- " rep; stosb\n"
- " popl %%eax\n"
- " popl %0\n"
- " jmp 8b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 0b,16b\n"
- " .long 1b,16b\n"
- " .long 2b,16b\n"
- " .long 21b,16b\n"
- " .long 3b,16b\n"
- " .long 31b,16b\n"
- " .long 4b,16b\n"
- " .long 41b,16b\n"
- " .long 10b,16b\n"
- " .long 51b,16b\n"
- " .long 11b,16b\n"
- " .long 61b,16b\n"
- " .long 12b,16b\n"
- " .long 71b,16b\n"
- " .long 13b,16b\n"
- " .long 81b,16b\n"
- " .long 14b,16b\n"
- " .long 91b,16b\n"
- " .long 6b,9b\n"
- " .long 7b,16b\n"
- ".previous"
- : "=&c"(size), "=&D" (d0), "=&S" (d1)
- : "1"(to), "2"(from), "0"(size)
- : "eax", "edx", "memory");
- return size;
-}
-
-static unsigned long __copy_user_intel_nocache(void *to,
- const void __user *from, unsigned long size)
-{
- int d0, d1;
-
- __asm__ __volatile__(
- " .align 2,0x90\n"
- "0: movl 32(%4), %%eax\n"
- " cmpl $67, %0\n"
- " jbe 2f\n"
- "1: movl 64(%4), %%eax\n"
- " .align 2,0x90\n"
- "2: movl 0(%4), %%eax\n"
- "21: movl 4(%4), %%edx\n"
- " movnti %%eax, 0(%3)\n"
- " movnti %%edx, 4(%3)\n"
- "3: movl 8(%4), %%eax\n"
- "31: movl 12(%4),%%edx\n"
- " movnti %%eax, 8(%3)\n"
- " movnti %%edx, 12(%3)\n"
- "4: movl 16(%4), %%eax\n"
- "41: movl 20(%4), %%edx\n"
- " movnti %%eax, 16(%3)\n"
- " movnti %%edx, 20(%3)\n"
- "10: movl 24(%4), %%eax\n"
- "51: movl 28(%4), %%edx\n"
- " movnti %%eax, 24(%3)\n"
- " movnti %%edx, 28(%3)\n"
- "11: movl 32(%4), %%eax\n"
- "61: movl 36(%4), %%edx\n"
- " movnti %%eax, 32(%3)\n"
- " movnti %%edx, 36(%3)\n"
- "12: movl 40(%4), %%eax\n"
- "71: movl 44(%4), %%edx\n"
- " movnti %%eax, 40(%3)\n"
- " movnti %%edx, 44(%3)\n"
- "13: movl 48(%4), %%eax\n"
- "81: movl 52(%4), %%edx\n"
- " movnti %%eax, 48(%3)\n"
- " movnti %%edx, 52(%3)\n"
- "14: movl 56(%4), %%eax\n"
- "91: movl 60(%4), %%edx\n"
- " movnti %%eax, 56(%3)\n"
- " movnti %%edx, 60(%3)\n"
- " addl $-64, %0\n"
- " addl $64, %4\n"
- " addl $64, %3\n"
- " cmpl $63, %0\n"
- " ja 0b\n"
- " sfence \n"
- "5: movl %0, %%eax\n"
- " shrl $2, %0\n"
- " andl $3, %%eax\n"
- " cld\n"
- "6: rep; movsl\n"
- " movl %%eax,%0\n"
- "7: rep; movsb\n"
- "8:\n"
- ".section .fixup,\"ax\"\n"
- "9: lea 0(%%eax,%0,4),%0\n"
- "16: jmp 8b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- " .align 4\n"
- " .long 0b,16b\n"
- " .long 1b,16b\n"
- " .long 2b,16b\n"
- " .long 21b,16b\n"
- " .long 3b,16b\n"
- " .long 31b,16b\n"
- " .long 4b,16b\n"
- " .long 41b,16b\n"
- " .long 10b,16b\n"
- " .long 51b,16b\n"
- " .long 11b,16b\n"
- " .long 61b,16b\n"
- " .long 12b,16b\n"
- " .long 71b,16b\n"
- " .long 13b,16b\n"
- " .long 81b,16b\n"
- " .long 14b,16b\n"
- " .long 91b,16b\n"
- " .long 6b,9b\n"
- " .long 7b,16b\n"
- ".previous"
- : "=&c"(size), "=&D" (d0), "=&S" (d1)
- : "1"(to), "2"(from), "0"(size)
- : "eax", "edx", "memory");
- return size;
-}
-
-#else
-
-/*
- * Leave these declared but undefined. They should not be any references to
- * them
- */
-unsigned long __copy_user_zeroing_intel(void *to, const void __user *from,
- unsigned long size);
-unsigned long __copy_user_intel(void __user *to, const void *from,
- unsigned long size);
-unsigned long __copy_user_zeroing_intel_nocache(void *to,
- const void __user *from, unsigned long size);
-#endif /* CONFIG_X86_INTEL_USERCOPY */
-
-/* Generic arbitrary sized copy. */
-#define __copy_user(to,from,size) \
-do { \
- int __d0, __d1, __d2; \
- __asm__ __volatile__( \
- " cmp $7,%0\n" \
- " jbe 1f\n" \
- " movl %1,%0\n" \
- " negl %0\n" \
- " andl $7,%0\n" \
- " subl %0,%3\n" \
- "4: rep; movsb\n" \
- " movl %3,%0\n" \
- " shrl $2,%0\n" \
- " andl $3,%3\n" \
- " .align 2,0x90\n" \
- "0: rep; movsl\n" \
- " movl %3,%0\n" \
- "1: rep; movsb\n" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "5: addl %3,%0\n" \
- " jmp 2b\n" \
- "3: lea 0(%3,%0,4),%0\n" \
- " jmp 2b\n" \
- ".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 4\n" \
- " .long 4b,5b\n" \
- " .long 0b,3b\n" \
- " .long 1b,2b\n" \
- ".previous" \
- : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) \
- : "3"(size), "0"(size), "1"(to), "2"(from) \
- : "memory"); \
-} while (0)
-
-#define __copy_user_zeroing(to,from,size) \
-do { \
- int __d0, __d1, __d2; \
- __asm__ __volatile__( \
- " cmp $7,%0\n" \
- " jbe 1f\n" \
- " movl %1,%0\n" \
- " negl %0\n" \
- " andl $7,%0\n" \
- " subl %0,%3\n" \
- "4: rep; movsb\n" \
- " movl %3,%0\n" \
- " shrl $2,%0\n" \
- " andl $3,%3\n" \
- " .align 2,0x90\n" \
- "0: rep; movsl\n" \
- " movl %3,%0\n" \
- "1: rep; movsb\n" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "5: addl %3,%0\n" \
- " jmp 6f\n" \
- "3: lea 0(%3,%0,4),%0\n" \
- "6: pushl %0\n" \
- " pushl %%eax\n" \
- " xorl %%eax,%%eax\n" \
- " rep; stosb\n" \
- " popl %%eax\n" \
- " popl %0\n" \
- " jmp 2b\n" \
- ".previous\n" \
- ".section __ex_table,\"a\"\n" \
- " .align 4\n" \
- " .long 4b,5b\n" \
- " .long 0b,3b\n" \
- " .long 1b,6b\n" \
- ".previous" \
- : "=&c"(size), "=&D" (__d0), "=&S" (__d1), "=r"(__d2) \
- : "3"(size), "0"(size), "1"(to), "2"(from) \
- : "memory"); \
-} while (0)
-
-unsigned long __copy_to_user_ll(void __user *to, const void *from,
- unsigned long n)
-{
-#ifndef CONFIG_X86_WP_WORKS_OK
- if (unlikely(boot_cpu_data.wp_works_ok == 0) &&
- ((unsigned long )to) < TASK_SIZE) {
- /*
- * When we are in an atomic section (see
- * mm/filemap.c:file_read_actor), return the full
- * length to take the slow path.
- */
- if (in_atomic())
- return n;
-
- /*
- * CPU does not honor the WP bit when writing
- * from supervisory mode, and due to preemption or SMP,
- * the page tables can change at any time.
- * Do it manually. Manfred <manfred@colorfullife.com>
- */
- while (n) {
- unsigned long offset = ((unsigned long)to)%PAGE_SIZE;
- unsigned long len = PAGE_SIZE - offset;
- int retval;
- struct page *pg;
- void *maddr;
-
- if (len > n)
- len = n;
-
-survive:
- down_read(&current->mm->mmap_sem);
- retval = get_user_pages(current, current->mm,
- (unsigned long )to, 1, 1, 0, &pg, NULL);
-
- if (retval == -ENOMEM && is_init(current)) {
- up_read(&current->mm->mmap_sem);
- congestion_wait(WRITE, HZ/50);
- goto survive;
- }
-
- if (retval != 1) {
- up_read(&current->mm->mmap_sem);
- break;
- }
-
- maddr = kmap_atomic(pg, KM_USER0);
- memcpy(maddr + offset, from, len);
- kunmap_atomic(maddr, KM_USER0);
- set_page_dirty_lock(pg);
- put_page(pg);
- up_read(&current->mm->mmap_sem);
-
- from += len;
- to += len;
- n -= len;
- }
- return n;
- }
-#endif
- if (movsl_is_ok(to, from, n))
- __copy_user(to, from, n);
- else
- n = __copy_user_intel(to, from, n);
- return n;
-}
-EXPORT_SYMBOL(__copy_to_user_ll);
-
-unsigned long __copy_from_user_ll(void *to, const void __user *from,
- unsigned long n)
-{
- if (movsl_is_ok(to, from, n))
- __copy_user_zeroing(to, from, n);
- else
- n = __copy_user_zeroing_intel(to, from, n);
- return n;
-}
-EXPORT_SYMBOL(__copy_from_user_ll);
-
-unsigned long __copy_from_user_ll_nozero(void *to, const void __user *from,
- unsigned long n)
-{
- if (movsl_is_ok(to, from, n))
- __copy_user(to, from, n);
- else
- n = __copy_user_intel((void __user *)to,
- (const void *)from, n);
- return n;
-}
-EXPORT_SYMBOL(__copy_from_user_ll_nozero);
-
-unsigned long __copy_from_user_ll_nocache(void *to, const void __user *from,
- unsigned long n)
-{
-#ifdef CONFIG_X86_INTEL_USERCOPY
- if ( n > 64 && cpu_has_xmm2)
- n = __copy_user_zeroing_intel_nocache(to, from, n);
- else
- __copy_user_zeroing(to, from, n);
-#else
- __copy_user_zeroing(to, from, n);
-#endif
- return n;
-}
-
-unsigned long __copy_from_user_ll_nocache_nozero(void *to, const void __user *from,
- unsigned long n)
-{
-#ifdef CONFIG_X86_INTEL_USERCOPY
- if ( n > 64 && cpu_has_xmm2)
- n = __copy_user_intel_nocache(to, from, n);
- else
- __copy_user(to, from, n);
-#else
- __copy_user(to, from, n);
-#endif
- return n;
-}
-
-/**
- * copy_to_user: - Copy a block of data into user space.
- * @to: Destination address, in user space.
- * @from: Source address, in kernel space.
- * @n: Number of bytes to copy.
- *
- * Context: User context only. This function may sleep.
- *
- * Copy data from kernel space to user space.
- *
- * Returns number of bytes that could not be copied.
- * On success, this will be zero.
- */
-unsigned long
-copy_to_user(void __user *to, const void *from, unsigned long n)
-{
- if (access_ok(VERIFY_WRITE, to, n))
- n = __copy_to_user(to, from, n);
- return n;
-}
-EXPORT_SYMBOL(copy_to_user);
-
-/**
- * copy_from_user: - Copy a block of data from user space.
- * @to: Destination address, in kernel space.
- * @from: Source address, in user space.
- * @n: Number of bytes to copy.
- *
- * Context: User context only. This function may sleep.
- *
- * Copy data from user space to kernel space.
- *
- * Returns number of bytes that could not be copied.
- * On success, this will be zero.
- *
- * If some data could not be copied, this function will pad the copied
- * data to the requested size using zero bytes.
- */
-unsigned long
-copy_from_user(void *to, const void __user *from, unsigned long n)
-{
- if (access_ok(VERIFY_READ, from, n))
- n = __copy_from_user(to, from, n);
- else
- memset(to, 0, n);
- return n;
-}
-EXPORT_SYMBOL(copy_from_user);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-24 05:23:25 +0000