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[POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers

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Move to using PAGE_OFFSET instead of TASK_SIZE or KERNELBASE value on
6xx/40x/44x/fsl-booke to determine if the faulting address is a kernel or
user space address.  This mimics how the macro is_kernel_addr() works.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala
2007-10-11 13:36:52 -05:00
parent f5d7d13cd9
commit 8a13c4f972
4 changed files with 19 additions and 22 deletions
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6
arch/powerpc/kernel/head_40x.S
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@@ -289,7 +289,7 @@ label:
/* If we are faulting a kernel address, we have to use the
* kernel page tables.
*/
lis r11, TASK_SIZE@h
lis r11, PAGE_OFFSET@h
cmplw r10, r11
blt+ 3f
lis r11, swapper_pg_dir@h
@@ -481,7 +481,7 @@ label:
/* If we are faulting a kernel address, we have to use the
* kernel page tables.
*/
lis r11, TASK_SIZE@h
lis r11, PAGE_OFFSET@h
cmplw r10, r11
blt+ 3f
lis r11, swapper_pg_dir@h
@@ -581,7 +581,7 @@ label:
/* If we are faulting a kernel address, we have to use the
* kernel page tables.
*/
lis r11, TASK_SIZE@h
lis r11, PAGE_OFFSET@h
cmplw r10, r11
blt+ 3f
lis r11, swapper_pg_dir@h