From d15bf007b7b7507fe1a13ba449dd73a7b0ffee4c Mon Sep 17 00:00:00 2001
From: Shashank Shekhar <shashank.shekhar@motorola.com>
Date: Fri, 12 Dec 2014 13:31:13 -0600
Subject: lib: lz4: Set ARM_EFFICIENT_UNALIGNED_ACCESS

Set ARM_EFFICIENT_UNALIGNED_ACCESS to improve performance in lz4
compression and decompression.

On msm8x26 cortex-a7,

                       LZO                LZ4               LZ4 w/ UA
decompress (bs=4k)     121.21             115.52            148.7

                       LZO                LZ4               LZ4 w/ UA
compress (bs=4k)       37.5               34.5              44.8

Change-Id: I10dfea380f7558e29576d65f91c8cee13bf8e166
Signed-off-by: Chris Fries <cfries@motorola.com>
Reviewed-on: http://gerrit.mot.com/697567
Tested-by: Jira Key <jirakey@motorola.com>
Reviewed-by: Shashank Shekhar <shashankshekhar@motorola.com>
Reviewed-by: Igor Kovalenko <igork@motorola.com>
Submit-Approved: Jira Key <jirakey@motorola.com>
(cherry picked from commit 0fbb0d508f7904f0741a174de83f7aa2a65fa1a0)
---
 lib/lz4/lz4defs.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/lz4/lz4defs.h b/lib/lz4/lz4defs.h
index abcecdc..9b4182f 100644
--- a/lib/lz4/lz4defs.h
+++ b/lib/lz4/lz4defs.h
@@ -21,6 +21,7 @@
 /*
  * Architecture-specific macros
  */
+#define ARM_EFFICIENT_UNALIGNED_ACCESS
 #define BYTE	u8
 typedef struct _U16_S { u16 v; } U16_S;
 typedef struct _U32_S { u32 v; } U32_S;
-- 
cgit v1.1