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authorMichal Simek <monstr@monstr.eu>2010-03-24 10:09:17 +0100
committerMichal Simek <monstr@monstr.eu>2010-04-01 08:38:24 +0200
commit0691c97d74cbdfd49333ef01939ecaef158ebe1b (patch)
tree39845301dc8a7ef1ea3c3078646a947b27508c27 /arch/microblaze
parent9373dd6ab140f1e6f2e62a9f0bf473987a0b62dc (diff)
downloadop-kernel-dev-0691c97d74cbdfd49333ef01939ecaef158ebe1b.zip
op-kernel-dev-0691c97d74cbdfd49333ef01939ecaef158ebe1b.tar.gz
microblaze: Use MICROBLAZE_TLB_SIZE in asm code
TLB size was hardcoded in asm code. This patch brings ability to change TLB size only in one place. (mmu.h). Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/kernel/head.S2
-rw-r--r--arch/microblaze/kernel/misc.S4
2 files changed, 3 insertions, 3 deletions
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
index e397d5d..ba2c033 100644
--- a/arch/microblaze/kernel/head.S
+++ b/arch/microblaze/kernel/head.S
@@ -134,7 +134,7 @@ _copy_bram:
* virtual to physical.
*/
nop
- addik r3, r0, 63 /* Invalidate all TLB entries */
+ addik r3, r0, MICROBLAZE_TLB_SIZE -1 /* Invalidate all TLB entries */
_invalidate:
mts rtlbx, r3
mts rtlbhi, r0 /* flush: ensure V is clear */
diff --git a/arch/microblaze/kernel/misc.S b/arch/microblaze/kernel/misc.S
index 18681ee..7cf8649 100644
--- a/arch/microblaze/kernel/misc.S
+++ b/arch/microblaze/kernel/misc.S
@@ -29,7 +29,7 @@
.type _tlbia, @function
.align 4;
_tlbia:
- addik r12, r0, 63 /* flush all entries (63 - 3) */
+ addik r12, r0, MICROBLAZE_TLB_SIZE - 1 /* flush all entries (63 - 3) */
/* isync */
_tlbia_1:
mts rtlbx, r12
@@ -75,7 +75,7 @@ early_console_reg_tlb_alloc:
* Load a TLB entry for the UART, so that microblaze_progress() can use
* the UARTs nice and early. We use a 4k real==virtual mapping.
*/
- ori r4, r0, 63
+ ori r4, r0, MICROBLAZE_TLB_SIZE - 1
mts rtlbx, r4 /* TLB slot 2 */
or r4,r5,r0
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