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Subject[PATCH 06/10] microblaze: Add sync to tlb operations
Date
From: Stefan Asserhall <stefan.asserhall@xilinx.com>

Do the real sync by using mbar instruction.

Signed-off-by: Stefan Asserhall <stefan.asserhall@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

arch/microblaze/kernel/misc.S | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/microblaze/kernel/misc.S b/arch/microblaze/kernel/misc.S
index 6759af688451..1228a09d8109 100644
--- a/arch/microblaze/kernel/misc.S
+++ b/arch/microblaze/kernel/misc.S
@@ -39,7 +39,7 @@ _tlbia_1:
rsubi r11, r12, MICROBLAZE_TLB_SIZE - 1
bneid r11, _tlbia_1 /* loop for all entries */
addik r12, r12, 1
- /* sync */
+ mbar 1 /* sync */
rtsd r15, 8
nop
.size _tlbia, . - _tlbia
@@ -58,6 +58,7 @@ _tlbie:
blti r12, _tlbie_1 /* Check if found */
mts rtlbhi, r0 /* flush: ensure V is clear */
nop
+ mbar 1 /* sync */
_tlbie_1:
rtsd r15, 8
nop
--
2.25.0
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