From abc76eb6a6936a99811eda256222b3927427f8e2 Mon Sep 17 00:00:00 2001
From: Kumar Gala <galak@kernel.crashing.org>
Date: Tue, 17 Nov 2009 20:21:20 -0600
Subject: [PATCH] ppc/85xx: Map boot page guarded for MP boot
We already map the page cache-inhibited. There is no reason we
shouldn't also be marking it guarded to prevent speculative accesses.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
board/freescale/mpc8572ds/tlb.c | 2 +-
board/freescale/p1_p2_rdb/tlb.c | 2 +-
board/freescale/p2020ds/tlb.c | 2 +-
cpu/mpc85xx/mp.c | 2 +-
cpu/mpc85xx/release.S | 4 ++--
5 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/board/freescale/mpc8572ds/tlb.c b/board/freescale/mpc8572ds/tlb.c
index d832f89742..6a2a0b57f5 100644
--- a/board/freescale/mpc8572ds/tlb.c
+++ b/board/freescale/mpc8572ds/tlb.c
@@ -44,7 +44,7 @@ struct fsl_e_tlb_entry tlb_table[] = {
/* TLB 1 */
/* *I*** - Covers boot page */
SET_TLB_ENTRY(1, 0xfffff000, 0xfffff000,
- MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I,
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, 0, BOOKE_PAGESZ_4K, 1),
/* *I*G* - CCSRBAR */
diff --git a/board/freescale/p1_p2_rdb/tlb.c b/board/freescale/p1_p2_rdb/tlb.c
index 0009913eaa..93d0bf7bc7 100644
--- a/board/freescale/p1_p2_rdb/tlb.c
+++ b/board/freescale/p1_p2_rdb/tlb.c
@@ -44,7 +44,7 @@ struct fsl_e_tlb_entry tlb_table[] = {
/* TLB 1 */
/* *I*** - Covers boot page */
SET_TLB_ENTRY(1, 0xfffff000, 0xfffff000,
- MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I,
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, 0, BOOKE_PAGESZ_4K, 1),
/* *I*G* - CCSRBAR */
diff --git a/board/freescale/p2020ds/tlb.c b/board/freescale/p2020ds/tlb.c
index b2e562aeb1..36ad086d08 100644
--- a/board/freescale/p2020ds/tlb.c
+++ b/board/freescale/p2020ds/tlb.c
@@ -47,7 +47,7 @@ struct fsl_e_tlb_entry tlb_table[] = {
/* TLB 1 */
/* *I*** - Covers boot page */
SET_TLB_ENTRY(1, 0xfffff000, 0xfffff000,
- MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I,
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G,
0, 0, BOOKE_PAGESZ_4K, 1),
/* *I*G* - CCSRBAR */
diff --git a/cpu/mpc85xx/mp.c b/cpu/mpc85xx/mp.c
index 8568f5dbae..6530cb176b 100644
--- a/cpu/mpc85xx/mp.c
+++ b/cpu/mpc85xx/mp.c
@@ -312,7 +312,7 @@ void setup_mp(void)
disable_tlb(i);
set_tlb(1, CONFIG_BPTR_VIRT_ADDR, bootpg, /* tlb, epn, rpn */
- MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I, /* perms, wimge */
+ MAS3_SX|MAS3_SW|MAS3_SR, MAS2_I|MAS2_G, /* perms, wimge */
0, i, BOOKE_PAGESZ_4K, 1); /* ts, esel, tsize, iprot */
memcpy((void *)CONFIG_BPTR_VIRT_ADDR, (void *)fixup, 4096);
diff --git a/cpu/mpc85xx/release.S b/cpu/mpc85xx/release.S
index 55eca72869..00c4c547fd 100644
--- a/cpu/mpc85xx/release.S
+++ b/cpu/mpc85xx/release.S
@@ -166,8 +166,8 @@ __secondary_start_page:
lis r11,(MAS1_VALID|MAS1_IPROT)@h
ori r11,r11,(MAS1_TS|MAS1_TSIZE(BOOKE_PAGESZ_4K))@l
mtspr SPRN_MAS1,r11
- oris r11,r13,(MAS2_I)@h
- ori r11,r13,(MAS2_I)@l
+ oris r11,r13,(MAS2_I|MAS2_G)@h
+ ori r11,r13,(MAS2_I|MAS2_G)@l
mtspr SPRN_MAS2,r11
oris r11,r13,(MAS3_SX|MAS3_SW|MAS3_SR)@h
ori r11,r13,(MAS3_SX|MAS3_SW|MAS3_SR)@l
--
2.39.5