[coreboot-gerrit] New patch to review for coreboot: 7122ed1 libpayload: armv7: Add cache control function to invalidate range.

[Stefan Reinauer (stefan.reinauer@coreboot.org)]

Stefan Reinauer (stefan.reinauer at coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4345

-gerrit

commit 7122ed1e1b821c32a134e535fb1639b6c026ec43
Author: Hung-Te Lin <hungte at chromium.org>
Date:   Mon Jul 8 12:27:13 2013 +0800

    libpayload: armv7: Add cache control function to invalidate range.
    
    When dealing with DMA, we need a function to invalidate cache without corrupting
    contents on main memory (clean).
    
    Change-Id: I28e632ae57a7b7ed1accee74e76045b92f92a699
    Signed-off-by: Hung-Te Lin <hungte at chromium.org>
    Reviewed-on: https://gerrit.chromium.org/gerrit/61078
    Reviewed-by: Gabe Black <gabeblack at chromium.org>
    Commit-Queue: Gabe Black <gabeblack at chromium.org>
---
 payloads/libpayload/arch/armv7/cache.c         | 9 +++++++++
 payloads/libpayload/include/armv7/arch/cache.h | 3 +++
 2 files changed, 12 insertions(+)

diff --git a/payloads/libpayload/arch/armv7/cache.c b/payloads/libpayload/arch/armv7/cache.c
index 4046451..efdf75e 100644
--- a/payloads/libpayload/arch/armv7/cache.c
+++ b/payloads/libpayload/arch/armv7/cache.c
@@ -80,6 +80,7 @@ enum dcache_op {
 	OP_DCISW,
 	OP_DCCIMVAC,
 	OP_DCCMVAC,
+	OP_DCIMVAC,
 };
 
 /*
@@ -220,6 +221,9 @@ static void dcache_op_mva(unsigned long addr,
 		case OP_DCCMVAC:
 			dccmvac(line);
 			break;
+		case OP_DCIMVAC:
+			dcimvac(line);
+			break;
 		default:
 			break;
 		}
@@ -238,6 +242,11 @@ void dcache_clean_invalidate_by_mva(unsigned long addr, unsigned long len)
 	dcache_op_mva(addr, len, OP_DCCIMVAC);
 }
 
+void dcache_invalidate_by_mva(unsigned long addr, unsigned long len)
+{
+	dcache_op_mva(addr, len, OP_DCIMVAC);
+}
+
 void dcache_mmu_disable(void)
 {
 	uint32_t sctlr;
diff --git a/payloads/libpayload/include/armv7/arch/cache.h b/payloads/libpayload/include/armv7/arch/cache.h
index 1db86dc..2571e81 100644
--- a/payloads/libpayload/include/armv7/arch/cache.h
+++ b/payloads/libpayload/include/armv7/arch/cache.h
@@ -266,6 +266,9 @@ void dcache_clean_by_mva(unsigned long addr, unsigned long len);
 /* dcache clean and invalidate by modified virtual address to PoC */
 void dcache_clean_invalidate_by_mva(unsigned long addr, unsigned long len);
 
+/* dcache invalidate by modified virtual address to PoC */
+void dcache_invalidate_by_mva(unsigned long addr, unsigned long len);
+
 /* dcache invalidate all (on current level given by CCSELR) */
 void dcache_invalidate_all(void);