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Commit 0691c97d authored by Michal Simek's avatar Michal Simek
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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: default avatarMichal Simek <monstr@monstr.eu>
parent 9373dd6a

arch/microblaze/kernel/head.S

+1 −1
Original line number Diff line number Diff line
@@ -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   */

arch/microblaze/kernel/misc.S

+2 −2
Original line number Diff line number Diff line
@@ -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