Hi!
This patch is virtually identical to my previous 44x one. It removes
0x8000'0000 TASK_SIZE hardcoded assumption from head_4xx.S.
I don't have any 40x board which runs 2.6, so this one is untested,
bit it compiles :).
Signed-off-by: Eugene Surovegin <ebs at ebshome.net>
Index: arch/ppc/kernel/head_4xx.S
===================================================================
--- 59c3218467807e1793fb4fc5d90141e072ab2212/arch/ppc/kernel/head_4xx.S
(mode:100644)
+++ uncommitted/arch/ppc/kernel/head_4xx.S (mode:100644)
@@ -291,8 +291,9 @@
/* If we are faulting a kernel address, we have to use the
* kernel page tables.
*/
- andis. r11, r10, 0x8000
- beq 3f
+ lis r11, TASK_SIZE at h
+ cmplw r10, r11
+ blt+ 3f
lis r11, swapper_pg_dir at h
ori r11, r11, swapper_pg_dir at l
li r9, 0
@@ -479,8 +480,9 @@
/* If we are faulting a kernel address, we have to use the
* kernel page tables.
*/
- andis. r11, r10, 0x8000
- beq 3f
+ lis r11, TASK_SIZE at h
+ cmplw r10, r11
+ blt+ 3f
lis r11, swapper_pg_dir at h
ori r11, r11, swapper_pg_dir at l
li r9, 0
@@ -578,8 +580,9 @@
/* If we are faulting a kernel address, we have to use the
* kernel page tables.
*/
- andis. r11, r10, 0x8000
- beq 3f
+ lis r11, TASK_SIZE at h
+ cmplw r10, r11
+ blt+ 3f
lis r11, swapper_pg_dir at h
ori r11, r11, swapper_pg_dir at l
li r9, 0
