From 751303c2acf22f7fa431690efcddcc8cb0d3a84e Mon Sep 17 00:00:00 2001
From: Michael Sparmann <theseven@rockbox.org>
Date: Sun, 27 Feb 2011 22:44:30 +0000
Subject: iPod Classic CE-ATA Support (Part 1 of 4: Cacheline align some
 statically allocated sector buffers)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@29444 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/common/file.c          | 6 +++---
 firmware/drivers/fat.c          | 2 +-
 firmware/export/fat.h           | 5 +++--
 firmware/font.c                 | 5 +++--
 firmware/include/dir_uncached.h | 4 ++--
 5 files changed, 12 insertions(+), 10 deletions(-)

(limited to 'firmware')

diff --git a/firmware/common/file.c b/firmware/common/file.c
index 3477c10061..bc4a90a485 100644
--- a/firmware/common/file.c
+++ b/firmware/common/file.c
@@ -39,7 +39,7 @@
 */
 
 struct filedesc {
-    unsigned char cache[SECTOR_SIZE];
+    unsigned char cache[SECTOR_SIZE] CACHEALIGN_ATTR;
     int cacheoffset; /* invariant: 0 <= cacheoffset <= SECTOR_SIZE */
     long fileoffset;
     long size;
@@ -49,9 +49,9 @@ struct filedesc {
     bool write;
     bool dirty;
     bool trunc;
-};
+} CACHEALIGN_ATTR;
 
-static struct filedesc openfiles[MAX_OPEN_FILES];
+static struct filedesc openfiles[MAX_OPEN_FILES] CACHEALIGN_ATTR;
 
 static int flush_cache(int fd);
 
diff --git a/firmware/drivers/fat.c b/firmware/drivers/fat.c
index f055f4b170..63f4151792 100644
--- a/firmware/drivers/fat.c
+++ b/firmware/drivers/fat.c
@@ -211,7 +211,7 @@ struct fat_cache_entry
 #endif
 };
 
-static char fat_cache_sectors[FAT_CACHE_SIZE][SECTOR_SIZE];
+static char fat_cache_sectors[FAT_CACHE_SIZE][SECTOR_SIZE] CACHEALIGN_ATTR;
 static struct fat_cache_entry fat_cache[FAT_CACHE_SIZE];
 static struct mutex cache_mutex SHAREDBSS_ATTR;
 
diff --git a/firmware/export/fat.h b/firmware/export/fat.h
index 36beda711d..38ce6ee74d 100644
--- a/firmware/export/fat.h
+++ b/firmware/export/fat.h
@@ -25,6 +25,7 @@
 #include <stdbool.h>
 #include "mv.h" /* for volume definitions */
 #include "config.h"
+#include "system.h"
 
 /* This value can be overwritten by a target in config-[target].h, but
    that behaviour is still experimental */
@@ -81,17 +82,17 @@ struct fat_file
 
 struct fat_dir
 {
+    unsigned char sectorcache[SECTOR_SIZE] CACHEALIGN_ATTR;
     unsigned int entry;
     unsigned int entrycount;
     long sector;
     struct fat_file file;
-    unsigned char sectorcache[SECTOR_SIZE];
     /* There are 2-bytes per characters. We don't want to bother too much, as LFN entries are
      * at much 255 characters longs, that's at most 20 LFN entries. Each entry hold at most
      * 13 characters, that a total of 260 characters. So we keep a buffer of that size.
      * Keep coherent with fat.c code. */
     unsigned char longname[260 * 2];
-};
+} CACHEALIGN_ATTR;
 
 #ifdef HAVE_HOTSWAP
 extern void fat_lock(void);
diff --git a/firmware/font.c b/firmware/font.c
index 8538ef9490..45ddef3afe 100644
--- a/firmware/font.c
+++ b/firmware/font.c
@@ -31,6 +31,7 @@
 #include <stdlib.h>
 #include "inttypes.h"
 #include "lcd.h"
+#include "system.h"
 #include "font.h"
 #include "file.h"
 #include "debug.h"
@@ -76,11 +77,11 @@ extern struct font sysfont;
 /* structure filled in by font_load */
 static struct font font_ui;
 /* static buffer allocation structures */
-static unsigned char main_buf[MAX_FONT_SIZE];
+static unsigned char main_buf[MAX_FONT_SIZE] CACHEALIGN_ATTR;
 #ifdef HAVE_REMOTE_LCD
 #define REMOTE_FONT_SIZE 10000
 static struct font remote_font_ui;
-static unsigned char remote_buf[REMOTE_FONT_SIZE];
+static unsigned char remote_buf[REMOTE_FONT_SIZE] CACHEALIGN_ATTR;
 #endif
 
 /* system font table, in order of FONT_xxx definition */
diff --git a/firmware/include/dir_uncached.h b/firmware/include/dir_uncached.h
index c2c7d67505..19bed9af5d 100644
--- a/firmware/include/dir_uncached.h
+++ b/firmware/include/dir_uncached.h
@@ -57,9 +57,9 @@ struct dirent_uncached {
 #ifndef DIR_DEFINED
 typedef struct {
 #if (CONFIG_PLATFORM & PLATFORM_NATIVE)
+    struct fat_dir fatdir CACHEALIGN_ATTR;
     bool busy;
     long startcluster;
-    struct fat_dir fatdir;
     struct dirent_uncached theent;
 #ifdef HAVE_MULTIVOLUME
     int volumecounter; /* running counter for faked volume entries */
@@ -69,7 +69,7 @@ typedef struct {
     void *dir; /* actually a DIR* dir */
     char *name;
 #endif
-} DIR_UNCACHED;
+} DIR_UNCACHED CACHEALIGN_ATTR;
 #endif
 
 
-- 
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