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x86: Create clflush() inline, remove hardcoded wbinvd

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Create an inline function for clflush(), with the proper arguments,
and use it instead of hard-coding the instruction.

This also removes one instance of hard-coded wbinvd, based on a patch
by Bauder de Oliveira Costa.

[ tglx: arch/x86 adaptation ]

Cc: Andi Kleen <[email protected]>
Cc: Glauber de Oliveira Costa <[email protected]>
Signed-off-by: H. Peter Anvin <[email protected]>
Signed-off-by: Andi Kleen <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
This commit is contained in:
H. Peter Anvin 2007-10-17 18:04:37 +02:00 • committed by Thomas Gleixner
commit 6619a8fb59
6 changed files with 20 additions and 10 deletions
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11
drivers/char/agp/efficeon-agp.c
View file

@ -221,7 +221,7 @@ static int efficeon_create_gatt_table(struct agp_bridge_data *bridge)
SetPageReserved(virt_to_page((char *)page));
for (offset = 0; offset < PAGE_SIZE; offset += clflush_chunk)
asm volatile("clflush %0" : : "m" (*(char *)(page+offset)));
clflush((char *)page+offset);
efficeon_private.l1_table[index] = page;
@ -268,15 +268,16 @@ static int efficeon_insert_memory(struct agp_memory * mem, off_t pg_start, int t
*page = insert;
/* clflush is slow, so don't clflush until we have to */
if ( last_page &&
((unsigned long)page^(unsigned long)last_page) & clflush_mask )
asm volatile("clflush %0" : : "m" (*last_page));
if (last_page &&
(((unsigned long)page^(unsigned long)last_page) &
clflush_mask))
clflush(last_page);
last_page = page;
}
if ( last_page )
asm volatile("clflush %0" : : "m" (*last_page));
clflush(last_page);
agp_bridge->driver->tlb_flush(mem);
return 0;