From 0ae834cebfea4cbc63db07fe927625224e842292 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Tue, 16 Feb 2010 10:32:29 -0800
Subject: [PATCH] core: remove obsolete assembly cache.inc

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
---
 core/cache.inc | 114 ---------------------------------------------------------
 1 file changed, 114 deletions(-)
 delete mode 100644 core/cache.inc

diff --git a/core/cache.inc b/core/cache.inc
deleted file mode 100644
index 3b24cf0..0000000
--- a/core/cache.inc
+++ /dev/null
@@ -1,114 +0,0 @@
-; -*- fundamental -*- ---------------------------------------------------
-;
-;   Copyright 2004-2008 H. Peter Anvin - All Rights Reserved
-;
-;   This program is free software; you can redistribute it and/or modify
-;   it under the terms of the GNU General Public License as published by
-;   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
-;   Boston MA 02111-1307, USA; either version 2 of the License, or
-;   (at your option) any later version; incorporated herein by reference.
-;
-; -----------------------------------------------------------------------
-
-		section .text16
-
-		struc cptr
-.sector:	resd 1				; Sector number
-.prev:		resw 1				; LRU pointer to previous (less recent)
-.next:		resw 1				; LRU pointer to next (more recent)
-		endstruc
-cptr_size_lg2	equ 3
-
-NCacheEntries	equ 65536/SECTOR_SIZE
-
-;
-; initcache: Initialize the cache data structures
-;
-initcache:
-		xor eax,eax			; We don't care about sector 0
-		mov di,CachePtrs
-		mov cx,NCacheEntries+1
-		mov bx,CachePtrs+NCacheEntries*cptr_size	; "prev" pointer
-.loop:
-		mov [di+cptr.sector],eax	; Zero sector number
-		mov [di+cptr.prev],bx		; Previous pointer
-		mov [bx+cptr.next],di		; Previous entry's next pointer
-		mov bx,di
-		add di,cptr_size
-		loop .loop
-		ret
-
-;
-; getcachesector: Check for a particular sector (EAX) in the sector cache,
-;		  and if it is already there, return a pointer in GS:SI
-;		  otherwise load it and return said pointer.
-;
-;		Assumes CS == DS.
-;
-getcachesector:
-		push cx
-		push bx
-		push di
-		mov si,cache_seg
-		mov gs,si
-		mov si,CachePtrs+cptr_size	; Real sector cache pointers
-		mov cx,NCacheEntries
-.search:
-		cmp eax,[si]
-		jz .hit
-		add si,cptr_size
-		loop .search
-
-.miss:
-		TRACER 'M'
-		; Need to load it.
-		push es
-		push gs
-		pop es
-		mov bx,[CachePtrs+cptr.next]	; "Next most recent than head node"
-		mov [bx+cptr.sector],eax
-		mov si,bx
-		sub bx,CachePtrs+cptr_size
-		shl bx,SECTOR_SHIFT-cptr_size_lg2	; Buffer address
-		pushad
-%if IS_EXTLINUX
-		call getonesec_ext
-%else
-		call getonesec
-%endif
-		popad
-		pop es
-.hit:
-		; Update LRU, then compute buffer address
-		TRACER 'H'
-
-		; Remove from current position in the list
-		mov bx,[si+cptr.prev]
-		mov di,[si+cptr.next]
-		mov [bx+cptr.next],di
-		mov [di+cptr.prev],bx
-
-		; Add to just before head node
-		mov bx,[CachePtrs+cptr.prev]
-		mov [si+cptr.prev],bx
-		mov [bx+cptr.next],si
-		mov [CachePtrs+cptr.prev],si
-		mov word [si+cptr.next],CachePtrs
-
-		sub si,CachePtrs+cptr_size
-		shl si,SECTOR_SHIFT-cptr_size_lg2	; Buffer address
-
-		pop di
-		pop bx
-		pop cx
-		ret
-
-		section .bss16
-
-		; Each CachePtr contains:
-		; - Block pointer
-		; - LRU previous pointer
-		; - LRU next pointer
-		; The first entry is the head node of the list
-		alignb 4
-CachePtrs	resb (NCacheEntries+1)*cptr_size
-- 
2.7.4