Patch set updated for coreboot: 03096da armv7: invalidate TLB entries as they are added/modified

[David Hendricks]

David Hendricks ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3166

-gerrit

commit 03096dad4a904692603b84df67241b9668d0c765
Author: David Hendricks 
Date:   Tue Apr 30 16:01:50 2013 -0700

armv7: invalidate TLB entries as they are added/modified

The old approach was to invalidate the entire TLB every time we set up
    a table entry. This worked because we didn't turn the MMU on until
    after we had set everything up. This patch uses the TLBIMVAA wrapper
    to invalidate each entry as it's added/modified.

Change-Id: I27654a543a2015574d910e15d48b3d3845fdb6d1
    Signed-off-by: David Hendricks 
---
 src/arch/armv7/lib/mmu.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/arch/armv7/lib/mmu.c b/src/arch/armv7/lib/mmu.c
index 82c7358..d4e08f7 100644
--- a/src/arch/armv7/lib/mmu.c
+++ b/src/arch/armv7/lib/mmu.c
@@ -99,11 +99,10 @@ void mmu_config_range(unsigned long start_mb, unsigned long size_mb,
    printk(BIOS_DEBUG, "Setting dcache policy: 0x%08lx:0x%08lx [%s]\n",
    		start_mb << 20, ((start_mb + size_mb) << 20) - 1, str);

-	for (i = start_mb; i < start_mb + size_mb; i++)
+	for (i = start_mb; i < start_mb + size_mb; i++) {
    	ttb_entry[i] = (i << 20) | attr;
-
-	/* TODO: add helper to invalidate TLB by MVA */
-	tlb_invalidate_all();
+		tlbimvaa(start_mb);
+	}
 }

void mmu_init(void)