Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

Pull sparc fixes from David Miller:

 - Fix symbol version generation for assembler on sparc, from
   Nagarathnam Muthusamy.

 - Fix compound page handling in gup_huge_pmd(), from Nitin Gupta.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Fix gup_huge_pmd
  Adding the type of exported symbols
  sed regex in Makefile.build requires line break between exported symbols
  Adding asm-prototypes.h for genksyms to generate crc
This commit is contained in:
Linus Torvalds 2017-07-11 21:34:24 -07:00
commit 3b06b1a744
7 changed files with 57 additions and 20 deletions

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@ -0,0 +1,24 @@
/*
* Copyright (c) 2017 Oracle and/or its affiliates. All rights reserved.
*/
#include <asm/xor.h>
#include <asm/checksum.h>
#include <asm/trap_block.h>
#include <asm/uaccess.h>
#include <asm/atomic.h>
#include <asm/ftrace.h>
#include <asm/cacheflush.h>
#include <asm/oplib.h>
#include <linux/atomic.h>
void *__memscan_zero(void *, size_t);
void *__memscan_generic(void *, int, size_t);
void *__bzero(void *, size_t);
void VISenter(void); /* Dummy prototype to supress warning */
#undef memcpy
#undef memset
void *memcpy(void *dest, const void *src, size_t n);
void *memset(void *s, int c, size_t n);
typedef int TItype __attribute__((mode(TI)));
TItype __multi3(TItype a, TItype b);

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@ -62,19 +62,23 @@ ENTRY(atomic_fetch_##op) /* %o0 = increment, %o1 = atomic_ptr */ \
ENDPROC(atomic_fetch_##op); \
EXPORT_SYMBOL(atomic_fetch_##op);
#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op) ATOMIC_FETCH_OP(op)
ATOMIC_OP(add)
ATOMIC_OP_RETURN(add)
ATOMIC_FETCH_OP(add)
ATOMIC_OPS(add)
ATOMIC_OPS(sub)
ATOMIC_OP(sub)
ATOMIC_OP_RETURN(sub)
ATOMIC_FETCH_OP(sub)
#undef ATOMIC_OPS
#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_FETCH_OP(op)
ATOMIC_OP(and)
ATOMIC_FETCH_OP(and)
ATOMIC_OPS(and)
ATOMIC_OPS(or)
ATOMIC_OPS(xor)
ATOMIC_OP(or)
ATOMIC_FETCH_OP(or)
ATOMIC_OP(xor)
ATOMIC_FETCH_OP(xor)
#undef ATOMIC_OPS
#undef ATOMIC_FETCH_OP
#undef ATOMIC_OP_RETURN
#undef ATOMIC_OP
@ -124,19 +128,23 @@ ENTRY(atomic64_fetch_##op) /* %o0 = increment, %o1 = atomic_ptr */ \
ENDPROC(atomic64_fetch_##op); \
EXPORT_SYMBOL(atomic64_fetch_##op);
#define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_OP_RETURN(op) ATOMIC64_FETCH_OP(op)
ATOMIC64_OP(add)
ATOMIC64_OP_RETURN(add)
ATOMIC64_FETCH_OP(add)
ATOMIC64_OPS(add)
ATOMIC64_OPS(sub)
ATOMIC64_OP(sub)
ATOMIC64_OP_RETURN(sub)
ATOMIC64_FETCH_OP(sub)
#undef ATOMIC64_OPS
#define ATOMIC64_OPS(op) ATOMIC64_OP(op) ATOMIC64_FETCH_OP(op)
ATOMIC64_OP(and)
ATOMIC64_FETCH_OP(and)
ATOMIC64_OPS(and)
ATOMIC64_OPS(or)
ATOMIC64_OPS(xor)
ATOMIC64_OP(or)
ATOMIC64_FETCH_OP(or)
ATOMIC64_OP(xor)
ATOMIC64_FETCH_OP(xor)
#undef ATOMIC64_OPS
#undef ATOMIC64_FETCH_OP
#undef ATOMIC64_OP_RETURN
#undef ATOMIC64_OP

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@ -38,6 +38,7 @@ csum_partial_fix_alignment:
.align 32
.globl csum_partial
.type csum_partial,#function
EXPORT_SYMBOL(csum_partial)
csum_partial: /* %o0=buff, %o1=len, %o2=sum */
prefetch [%o0 + 0x000], #n_reads

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@ -65,6 +65,7 @@
add %o5, %o4, %o4
.globl FUNC_NAME
.type FUNC_NAME,#function
EXPORT_SYMBOL(FUNC_NAME)
FUNC_NAME: /* %o0=src, %o1=dst, %o2=len, %o3=sum */
LOAD(prefetch, %o0 + 0x000, #n_reads)

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@ -14,6 +14,8 @@
.text
.align 32
.globl __memscan_zero, __memscan_generic
.type __memscan_zero,#function
.type __memscan_generic,#function
.globl memscan
EXPORT_SYMBOL(__memscan_zero)
EXPORT_SYMBOL(__memscan_generic)

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@ -63,6 +63,7 @@
__bzero_begin:
.globl __bzero
.type __bzero,#function
.globl memset
EXPORT_SYMBOL(__bzero)
EXPORT_SYMBOL(memset)

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@ -78,8 +78,8 @@ static int gup_huge_pmd(pmd_t *pmdp, pmd_t pmd, unsigned long addr,
return 0;
refs = 0;
head = pmd_page(pmd);
page = head + ((addr & ~PMD_MASK) >> PAGE_SHIFT);
page = pmd_page(pmd) + ((addr & ~PMD_MASK) >> PAGE_SHIFT);
head = compound_head(page);
do {
VM_BUG_ON(compound_head(page) != head);
pages[*nr] = page;