From 65c21ebcac30ca3c5a1303149f2c795bde5f990f Mon Sep 17 00:00:00 2001
From: John Hodge <tpg@mutabah.net>
Date: Sun, 7 Aug 2011 11:53:49 +0800
Subject: [PATCH] Kernel - Planning for IOCache to use pages for cache instead
of heap
---
Kernel/drv/iocache.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/Kernel/drv/iocache.c b/Kernel/drv/iocache.c
index 2b4755cf..ba822df8 100644
--- a/Kernel/drv/iocache.c
+++ b/Kernel/drv/iocache.c
@@ -3,6 +3,8 @@
* - IO Cache
*
* By thePowersGang (John Hodge)
+ *
+ * TODO: Convert to use spare physical pages instead
*/
#define DEBUG 0
#include <acess.h>
@@ -10,6 +12,7 @@
// === TYPES ===
typedef struct sIOCache_Ent tIOCache_Ent;
+typedef struct sIOCache_PageInfo tIOCache_PageInfo;
// === STRUCTURES ===
struct sIOCache_Ent
@@ -21,6 +24,15 @@ struct sIOCache_Ent
Uint8 Data[];
};
+struct sIOCache_PageInfo
+{
+ tIOCache_PageInfo *GlobalNext;
+ tIOCache_PageInfo *CacheNext;
+ tIOCache *Owner;
+ tPAddr BasePhys;
+ Uint64 BaseOffset;
+};
+
struct sIOCache
{
tIOCache *Next;
@@ -38,6 +50,7 @@ struct sIOCache
tShortSpinlock glIOCache_Caches;
tIOCache *gIOCache_Caches = NULL;
int giIOCache_NumCaches = 0;
+tIOCache_PageInfo *gIOCache_GlobalPages;
// === CODE ===
/**
--
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