mirror of
https://github.com/torvalds/linux.git
synced 2024-12-05 02:23:16 +00:00
powerpc: Remove unused flush_dcache_phys_range()
The flush_dcache_phys_range() function is no longer used in the
kernel. The last usage was removed in c40785ad30
("powerpc/dart: Use
a cachable DART").
This patch removes the function and declaration.
Signed-off-by: Matt Brown <matthew.brown.dev@gmail.com>
[mpe: Munge change log, include commit that removed last user]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
parent
aa9532d489
commit
31513207ce
@ -99,7 +99,6 @@ static inline void invalidate_dcache_range(unsigned long start,
|
|||||||
#ifdef CONFIG_PPC64
|
#ifdef CONFIG_PPC64
|
||||||
extern void flush_dcache_range(unsigned long start, unsigned long stop);
|
extern void flush_dcache_range(unsigned long start, unsigned long stop);
|
||||||
extern void flush_inval_dcache_range(unsigned long start, unsigned long stop);
|
extern void flush_inval_dcache_range(unsigned long start, unsigned long stop);
|
||||||
extern void flush_dcache_phys_range(unsigned long start, unsigned long stop);
|
|
||||||
#endif
|
#endif
|
||||||
|
|
||||||
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
|
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
|
||||||
|
@ -144,44 +144,6 @@ _GLOBAL_TOC(flush_dcache_range)
|
|||||||
blr
|
blr
|
||||||
EXPORT_SYMBOL(flush_dcache_range)
|
EXPORT_SYMBOL(flush_dcache_range)
|
||||||
|
|
||||||
/*
|
|
||||||
* Like above, but works on non-mapped physical addresses.
|
|
||||||
* Use only for non-LPAR setups ! It also assumes real mode
|
|
||||||
* is cacheable. Used for flushing out the DART before using
|
|
||||||
* it as uncacheable memory
|
|
||||||
*
|
|
||||||
* flush_dcache_phys_range(unsigned long start, unsigned long stop)
|
|
||||||
*
|
|
||||||
* flush all bytes from start to stop-1 inclusive
|
|
||||||
*/
|
|
||||||
_GLOBAL(flush_dcache_phys_range)
|
|
||||||
ld r10,PPC64_CACHES@toc(r2)
|
|
||||||
lwz r7,DCACHEL1BLOCKSIZE(r10) /* Get dcache block size */
|
|
||||||
addi r5,r7,-1
|
|
||||||
andc r6,r3,r5 /* round low to line bdy */
|
|
||||||
subf r8,r6,r4 /* compute length */
|
|
||||||
add r8,r8,r5 /* ensure we get enough */
|
|
||||||
lwz r9,DCACHEL1LOGBLOCKSIZE(r10) /* Get log-2 of dcache block size */
|
|
||||||
srw. r8,r8,r9 /* compute line count */
|
|
||||||
beqlr /* nothing to do? */
|
|
||||||
mfmsr r5 /* Disable MMU Data Relocation */
|
|
||||||
ori r0,r5,MSR_DR
|
|
||||||
xori r0,r0,MSR_DR
|
|
||||||
sync
|
|
||||||
mtmsr r0
|
|
||||||
sync
|
|
||||||
isync
|
|
||||||
mtctr r8
|
|
||||||
0: dcbst 0,r6
|
|
||||||
add r6,r6,r7
|
|
||||||
bdnz 0b
|
|
||||||
sync
|
|
||||||
isync
|
|
||||||
mtmsr r5 /* Re-enable MMU Data Relocation */
|
|
||||||
sync
|
|
||||||
isync
|
|
||||||
blr
|
|
||||||
|
|
||||||
_GLOBAL(flush_inval_dcache_range)
|
_GLOBAL(flush_inval_dcache_range)
|
||||||
ld r10,PPC64_CACHES@toc(r2)
|
ld r10,PPC64_CACHES@toc(r2)
|
||||||
lwz r7,DCACHEL1BLOCKSIZE(r10) /* Get dcache block size */
|
lwz r7,DCACHEL1BLOCKSIZE(r10) /* Get dcache block size */
|
||||||
|
Loading…
Reference in New Issue
Block a user