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linux 3.0: add patch to fix SGX driver

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Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
This commit is contained in:
Koen Kooi
2011-07-27 13:44:48 +02:00
parent 93fa61d9be
commit f9d0cf6e84
2 changed files with 70 additions and 1 deletions
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recipes-kernel/linux/linux-3.0/sgx/0001-ARM-L2-Add-and-export-outer_clean_all.patch
+67
View File
@@ -0,0 +1,67 @@
From b230bde61ea3cf8e1a55b031d08d173417337a64 Mon Sep 17 00:00:00 2001
From: Vikram Pandita <vikram.pandita@ti.com>
Date: Tue, 31 May 2011 09:24:58 +0100
Subject: [PATCH] ARM: L2: Add and export outer_clean_all
The Errata 588369 and 539766 demands that clean all operation be done
as clean each way at a time
This patch also raps the implementation under the CONFIG errata
macro so that for non-errata version silicon it can be disabled
Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Woodruff, Richard <r-woodruff2@ti.com>
---
arch/arm/include/asm/outercache.h | 8 ++++++++
arch/arm/mm/cache-l2x0.c | 1 +
2 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/arch/arm/include/asm/outercache.h b/arch/arm/include/asm/outercache.h
index d838743..fa8cbd8 100644
--- a/arch/arm/include/asm/outercache.h
+++ b/arch/arm/include/asm/outercache.h
@@ -28,6 +28,7 @@ struct outer_cache_fns {
void (*clean_range)(unsigned long, unsigned long);
void (*flush_range)(unsigned long, unsigned long);
void (*flush_all)(void);
+ void (*clean_all)(void);
void (*inv_all)(void);
void (*disable)(void);
#ifdef CONFIG_OUTER_CACHE_SYNC
@@ -61,6 +62,11 @@ static inline void outer_flush_all(void)
if (outer_cache.flush_all)
outer_cache.flush_all();
}
+static inline void outer_clean_all(void)
+{
+ if (outer_cache.clean_all)
+ outer_cache.clean_all();
+}
static inline void outer_inv_all(void)
{
@@ -97,6 +103,8 @@ static inline void outer_sync(void)
#else
static inline void outer_sync(void)
{ }
+static inline void outer_clean_all(void)
+{ }
#endif
#endif /* __ASM_OUTERCACHE_H */
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index 44c0867..10b79d6 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -346,6 +346,7 @@ void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask)
outer_cache.inv_all = l2x0_inv_all;
outer_cache.disable = l2x0_disable;
outer_cache.set_debug = l2x0_set_debug;
+ outer_cache.clean_all = l2x0_clean_all;
printk(KERN_INFO "%s cache controller enabled\n", type);
printk(KERN_INFO "l2x0: %d ways, CACHE_ID 0x%08x, AUX_CTRL 0x%08x, Cache size: %d B\n",
--
1.6.6.1