WebSVN – Kolibri OS – Diff – /kernel/branches/Kolibri-acpi/blkdev/ide_cache.inc


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                                              ;;
;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License    ;;
;;                                                              ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
;**************************************************************************
;
;   [cache_ide[X]_pointer]
;   or [cache_ide[X]_data_pointer]  first entry in cache list
;
;            +0   - lba sector
;            +4   - state of cache sector
;                   0 = empty
;                   1 = used for read  ( same as in hd )
;                   2 = used for write ( differs from hd )
;
;  [cache_ide[X]_system_data]
;  or [cache_ide[x]_appl_data] - cache entries
;
;**************************************************************************
 
$Revision: 5565 $
 
align 4
find_empty_slot_CD_cache:
;-----------------------------------------------------------
; find empty or read slot, flush cache if next 10% is used by write
; output : edi = cache slot
;-----------------------------------------------------------
.search_again:
        call    cd_calculate_cache_3
.search_for_empty:
        inc     edi
        call    cd_calculate_cache_4
        jbe     .inside_cache
        mov     edi, 1
.inside_cache:
        call    cd_calculate_cache_5
        ret
;--------------------------------------------------------------------
clear_CD_cache:
        DEBUGF  1, 'K : clear_CD_cache\n'
        pusha
 
        mov     esi, [cdpos]
        dec     esi
        imul    esi, sizeof.IDE_CACHE
        add     esi, cache_ide0
 
        xor     eax, eax
 
        mov     [esi+IDE_CACHE.search_start], eax
        mov     ecx, [esi+IDE_CACHE.system_sad_size]
        mov     edi, [esi+IDE_CACHE.pointer]
        call    .clear
 
        mov     [esi+IDE_CACHE.appl_search_start], eax
        mov     ecx, [esi+IDE_CACHE.appl_sad_size]
        mov     edi, [esi+IDE_CACHE.data_pointer]
        call    .clear
 
        popa
        ret
;--------------------------------------
.clear:
        shl     ecx, 1
        cld
        rep stosd
        ret
;--------------------------------------------------------------------
align 4
cd_calculate_cache:
; 1 - IDE0 ... 12 - IDE11
        push    eax
 
        mov     eax, [cdpos]
        dec     eax
        imul    eax, sizeof.IDE_CACHE
        add     eax, cache_ide0
 
        cmp     [cd_appl_data], 0
        jne     @f
 
        mov     ecx, [eax+IDE_CACHE.system_sad_size]
        mov     esi, [eax+IDE_CACHE.pointer]
        pop     eax
        ret
;--------------------------------------
@@:
        mov     ecx, [eax+IDE_CACHE.appl_sad_size]
        mov     esi, [eax+IDE_CACHE.data_pointer]
        pop     eax
        ret
;--------------------------------------------------------------------
align 4
cd_calculate_cache_1:
; 1 - IDE0 ... 12 - IDE11
        push    eax
 
        mov     eax, [cdpos]
        dec     eax
        imul    eax, sizeof.IDE_CACHE
        add     eax, cache_ide0
 
        cmp     [cd_appl_data], 0
        jne     @f
 
        mov     esi, [eax+IDE_CACHE.pointer]
        pop     eax
        ret
;--------------------------------------
@@:
        mov     esi, [eax+IDE_CACHE.data_pointer]
        pop     eax
        ret
;--------------------------------------------------------------------
align 4
cd_calculate_cache_2:
; 1 - IDE0 ... 12 - IDE11
        mov     eax, [cdpos]
        dec     eax
        imul    eax, sizeof.IDE_CACHE
        add     eax, cache_ide0
 
        cmp     [cd_appl_data], 0
        jne     @f
 
        mov     eax, [eax+IDE_CACHE.system_data]
        ret
;--------------------------------------
@@:
        mov     eax, [eax+IDE_CACHE.appl_data]
        ret
;--------------------------------------------------------------------
align 4
cd_calculate_cache_3:
; 1 - IDE0 ... 12 - IDE11
        push    eax
 
        mov     eax, [cdpos]
        dec     eax
        imul    eax, sizeof.IDE_CACHE
        add     eax, cache_ide0
 
        cmp     [cd_appl_data], 0
        jne     @f
 
        mov     edi, [eax+IDE_CACHE.search_start]
        pop     eax
        ret
;--------------------------------------
@@:
        mov     edi, [eax+IDE_CACHE.appl_search_start]
        pop     eax
        ret
;--------------------------------------------------------------------
align 4
cd_calculate_cache_4:
; 1 - IDE0 ... 12 - IDE11
        push    eax
 
        mov     eax, [cdpos]
        dec     eax
        imul    eax, sizeof.IDE_CACHE
        add     eax, cache_ide0
 
        cmp     [cd_appl_data], 0
        jne     @f
 
        cmp     edi, [eax+IDE_CACHE.system_sad_size]
        pop     eax
        ret
;--------------------------------------
@@:
        cmp     edi, [eax+IDE_CACHE.appl_sad_size]
        pop     eax
        ret
;--------------------------------------------------------------------
align 4
cd_calculate_cache_5:
; 1 - IDE0 ... 12 - IDE11
        push    eax
 
        mov     eax, [cdpos]
        dec     eax
        imul    eax, sizeof.IDE_CACHE
        add     eax, cache_ide0
 
        cmp     [cd_appl_data], 0
        jne     @f
 
        mov     [eax+IDE_CACHE.search_start], edi
        pop     eax
        ret
;--------------------------------------
@@:
        mov     [eax+IDE_CACHE.appl_search_start], edi
        pop     eax
        ret
;--------------------------------------------------------------------

Rev 5201	Rev 5565
1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2	;; ;;	2	;; ;;
3	;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;;	3	;; Copyright (C) KolibriOS team 2004-2015. All rights reserved. ;;
4	;; Distributed under terms of the GNU General Public License ;;	4	;; Distributed under terms of the GNU General Public License ;;
5	;; ;;	5	;; ;;
6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
7		7
8	;**************************************************************************	8	;**************************************************************************
9	;	9	;
10	; [cache_ide[X]_pointer]	10	; [cache_ide[X]_pointer]
11	; or [cache_ide[X]_data_pointer] first entry in cache list	11	; or [cache_ide[X]_data_pointer] first entry in cache list
12	;	12	;
13	; +0 - lba sector	13	; +0 - lba sector
14	; +4 - state of cache sector	14	; +4 - state of cache sector
15	; 0 = empty	15	; 0 = empty
16	; 1 = used for read ( same as in hd )	16	; 1 = used for read ( same as in hd )
17	; 2 = used for write ( differs from hd )	17	; 2 = used for write ( differs from hd )
18	;	18	;
19	; [cache_ide[X]_system_data]	19	; [cache_ide[X]_system_data]
20	; or [cache_ide[x]_appl_data] - cache entries	20	; or [cache_ide[x]_appl_data] - cache entries
21	;	21	;
22	;**************************************************************************	22	;**************************************************************************
23		23
24	$Revision: 5201 $	24	$Revision: 5565 $
25		25
26	align 4	26	align 4
27	find_empty_slot_CD_cache:	27	find_empty_slot_CD_cache:
28	;-----------------------------------------------------------	28	;-----------------------------------------------------------
29	; find empty or read slot, flush cache if next 10% is used by write	29	; find empty or read slot, flush cache if next 10% is used by write
30	; output : edi = cache slot	30	; output : edi = cache slot
31	;-----------------------------------------------------------	31	;-----------------------------------------------------------
32	.search_again:	32	.search_again:
33	call cd_calculate_cache_3	33	call cd_calculate_cache_3
34	.search_for_empty:	34	.search_for_empty:
35	inc edi	35	inc edi
36	call cd_calculate_cache_4	36	call cd_calculate_cache_4
37	jbe .inside_cache	37	jbe .inside_cache
38	mov edi, 1	38	mov edi, 1
39	.inside_cache:	39	.inside_cache:
40	call cd_calculate_cache_5	40	call cd_calculate_cache_5
41	ret	41	ret
42	;--------------------------------------------------------------------	42	;--------------------------------------------------------------------
43	clear_CD_cache:	43	clear_CD_cache:
44	DEBUGF 1, 'K : clear_CD_cache\n'	44	DEBUGF 1, 'K : clear_CD_cache\n'
45	pusha	45	pusha
46		46
47	mov esi, [cdpos]	47	mov esi, [cdpos]
48	dec esi	48	dec esi
49	imul esi, sizeof.IDE_CACHE	49	imul esi, sizeof.IDE_CACHE
50	add esi, cache_ide0	50	add esi, cache_ide0
51		51
52	xor eax, eax	52	xor eax, eax
53		53
54	mov [esi+IDE_CACHE.search_start], eax	54	mov [esi+IDE_CACHE.search_start], eax
55	mov ecx, [esi+IDE_CACHE.system_sad_size]	55	mov ecx, [esi+IDE_CACHE.system_sad_size]
56	mov edi, [esi+IDE_CACHE.pointer]	56	mov edi, [esi+IDE_CACHE.pointer]
57	call .clear	57	call .clear
58		58
59	mov [esi+IDE_CACHE.appl_search_start], eax	59	mov [esi+IDE_CACHE.appl_search_start], eax
60	mov ecx, [esi+IDE_CACHE.appl_sad_size]	60	mov ecx, [esi+IDE_CACHE.appl_sad_size]
61	mov edi, [esi+IDE_CACHE.data_pointer]	61	mov edi, [esi+IDE_CACHE.data_pointer]
62	call .clear	62	call .clear
63		63
64	popa	64	popa
65	ret	65	ret
66	;--------------------------------------	66	;--------------------------------------
67	.clear:	67	.clear:
68	shl ecx, 1	68	shl ecx, 1
69	cld	69	cld
70	rep stosd	70	rep stosd
71	ret	71	ret
72	;--------------------------------------------------------------------	72	;--------------------------------------------------------------------
73	align 4	73	align 4
74	cd_calculate_cache:	74	cd_calculate_cache:
75	; 1 - IDE0 ... 12 - IDE11	75	; 1 - IDE0 ... 12 - IDE11
76	push eax	76	push eax
77		77
78	mov eax, [cdpos]	78	mov eax, [cdpos]
79	dec eax	79	dec eax
80	imul eax, sizeof.IDE_CACHE	80	imul eax, sizeof.IDE_CACHE
81	add eax, cache_ide0	81	add eax, cache_ide0
82		82
83	cmp [cd_appl_data], 0	83	cmp [cd_appl_data], 0
84	jne @f	84	jne @f
85		85
86	mov ecx, [eax+IDE_CACHE.system_sad_size]	86	mov ecx, [eax+IDE_CACHE.system_sad_size]
87	mov esi, [eax+IDE_CACHE.pointer]	87	mov esi, [eax+IDE_CACHE.pointer]
88	pop eax	88	pop eax
89	ret	89	ret
90	;--------------------------------------	90	;--------------------------------------
91	@@:	91	@@:
92	mov ecx, [eax+IDE_CACHE.appl_sad_size]	92	mov ecx, [eax+IDE_CACHE.appl_sad_size]
93	mov esi, [eax+IDE_CACHE.data_pointer]	93	mov esi, [eax+IDE_CACHE.data_pointer]
94	pop eax	94	pop eax
95	ret	95	ret
96	;--------------------------------------------------------------------	96	;--------------------------------------------------------------------
97	align 4	97	align 4
98	cd_calculate_cache_1:	98	cd_calculate_cache_1:
99	; 1 - IDE0 ... 12 - IDE11	99	; 1 - IDE0 ... 12 - IDE11
100	push eax	100	push eax
101		101
102	mov eax, [cdpos]	102	mov eax, [cdpos]
103	dec eax	103	dec eax
104	imul eax, sizeof.IDE_CACHE	104	imul eax, sizeof.IDE_CACHE
105	add eax, cache_ide0	105	add eax, cache_ide0
106		106
107	cmp [cd_appl_data], 0	107	cmp [cd_appl_data], 0
108	jne @f	108	jne @f
109		109
110	mov esi, [eax+IDE_CACHE.pointer]	110	mov esi, [eax+IDE_CACHE.pointer]
111	pop eax	111	pop eax
112	ret	112	ret
113	;--------------------------------------	113	;--------------------------------------
114	@@:	114	@@:
115	mov esi, [eax+IDE_CACHE.data_pointer]	115	mov esi, [eax+IDE_CACHE.data_pointer]
116	pop eax	116	pop eax
117	ret	117	ret
118	;--------------------------------------------------------------------	118	;--------------------------------------------------------------------
119	align 4	119	align 4
120	cd_calculate_cache_2:	120	cd_calculate_cache_2:
121	; 1 - IDE0 ... 12 - IDE11	121	; 1 - IDE0 ... 12 - IDE11
122	mov eax, [cdpos]	122	mov eax, [cdpos]
123	dec eax	123	dec eax
124	imul eax, sizeof.IDE_CACHE	124	imul eax, sizeof.IDE_CACHE
125	add eax, cache_ide0	125	add eax, cache_ide0
126		126
127	cmp [cd_appl_data], 0	127	cmp [cd_appl_data], 0
128	jne @f	128	jne @f
129		129
130	mov eax, [eax+IDE_CACHE.system_data]	130	mov eax, [eax+IDE_CACHE.system_data]
131	ret	131	ret
132	;--------------------------------------	132	;--------------------------------------
133	@@:	133	@@:
134	mov eax, [eax+IDE_CACHE.appl_data]	134	mov eax, [eax+IDE_CACHE.appl_data]
135	ret	135	ret
136	;--------------------------------------------------------------------	136	;--------------------------------------------------------------------
137	align 4	137	align 4
138	cd_calculate_cache_3:	138	cd_calculate_cache_3:
139	; 1 - IDE0 ... 12 - IDE11	139	; 1 - IDE0 ... 12 - IDE11
140	push eax	140	push eax
141		141
142	mov eax, [cdpos]	142	mov eax, [cdpos]
143	dec eax	143	dec eax
144	imul eax, sizeof.IDE_CACHE	144	imul eax, sizeof.IDE_CACHE
145	add eax, cache_ide0	145	add eax, cache_ide0
146		146
147	cmp [cd_appl_data], 0	147	cmp [cd_appl_data], 0
148	jne @f	148	jne @f
149		149
150	mov edi, [eax+IDE_CACHE.search_start]	150	mov edi, [eax+IDE_CACHE.search_start]
151	pop eax	151	pop eax
152	ret	152	ret
153	;--------------------------------------	153	;--------------------------------------
154	@@:	154	@@:
155	mov edi, [eax+IDE_CACHE.appl_search_start]	155	mov edi, [eax+IDE_CACHE.appl_search_start]
156	pop eax	156	pop eax
157	ret	157	ret
158	;--------------------------------------------------------------------	158	;--------------------------------------------------------------------
159	align 4	159	align 4
160	cd_calculate_cache_4:	160	cd_calculate_cache_4:
161	; 1 - IDE0 ... 12 - IDE11	161	; 1 - IDE0 ... 12 - IDE11
162	push eax	162	push eax
163		163
164	mov eax, [cdpos]	164	mov eax, [cdpos]
165	dec eax	165	dec eax
166	imul eax, sizeof.IDE_CACHE	166	imul eax, sizeof.IDE_CACHE
167	add eax, cache_ide0	167	add eax, cache_ide0
168		168
169	cmp [cd_appl_data], 0	169	cmp [cd_appl_data], 0
170	jne @f	170	jne @f
171		171
172	cmp edi, [eax+IDE_CACHE.system_sad_size]	172	cmp edi, [eax+IDE_CACHE.system_sad_size]
173	pop eax	173	pop eax
174	ret	174	ret
175	;--------------------------------------	175	;--------------------------------------
176	@@:	176	@@:
177	cmp edi, [eax+IDE_CACHE.appl_sad_size]	177	cmp edi, [eax+IDE_CACHE.appl_sad_size]
178	pop eax	178	pop eax
179	ret	179	ret
180	;--------------------------------------------------------------------	180	;--------------------------------------------------------------------
181	align 4	181	align 4
182	cd_calculate_cache_5:	182	cd_calculate_cache_5:
183	; 1 - IDE0 ... 12 - IDE11	183	; 1 - IDE0 ... 12 - IDE11
184	push eax	184	push eax
185		185
186	mov eax, [cdpos]	186	mov eax, [cdpos]
187	dec eax	187	dec eax
188	imul eax, sizeof.IDE_CACHE	188	imul eax, sizeof.IDE_CACHE
189	add eax, cache_ide0	189	add eax, cache_ide0
190		190
191	cmp [cd_appl_data], 0	191	cmp [cd_appl_data], 0
192	jne @f	192	jne @f
193		193
194	mov [eax+IDE_CACHE.search_start], edi	194	mov [eax+IDE_CACHE.search_start], edi
195	pop eax	195	pop eax
196	ret	196	ret
197	;--------------------------------------	197	;--------------------------------------
198	@@:	198	@@:
199	mov [eax+IDE_CACHE.appl_search_start], edi	199	mov [eax+IDE_CACHE.appl_search_start], edi
200	pop eax	200	pop eax
201	ret	201	ret
202	;--------------------------------------------------------------------	202	;--------------------------------------------------------------------

Subversion Repositories Kolibri OS

(root)/kernel/branches/Kolibri-acpi/blkdev/ide_cache.inc @ 6078 – Rev 5201 → 5565