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

Rev	Author	Line No.	Line
750	victor	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
2465	Serge	3	;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;;
750	victor	4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
		6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		7
580	mario79	8	;**************************************************************************
		9	;
		10	; [cache_ide[X]_pointer]
		11	; or [cache_ide[X]_data_pointer] first entry in cache list
		12	;
		13	; +0 - lba sector
		14	; +4 - state of cache sector
		15	; 0 = empty
		16	; 1 = used for read ( same as in hd )
		17	; 2 = used for write ( differs from hd )
		18	;
		19	; [cache_ide[X]_system_data]
		20	; or [cache_ide[x]_appl_data] - cache entries
		21	;
		22	;**************************************************************************
593	mikedld	23
750	victor	24	$Revision: 3555 $
593	mikedld	25
		26
580	mario79	27	align 4
		28	write_cache:
		29	;-----------------------------------------------------------
		30	; write all changed sectors to disk
		31	;-----------------------------------------------------------
3555	Serge	32	push eax ecx edx esi edi
580	mario79	33
		34	; write difference ( 2 ) from cache to hd
3555	Serge	35	call calculate_cache
2434	Serge	36	add esi, 8
		37	mov edi, 1
585	mario79	38	write_cache_more:
2434	Serge	39	cmp dword [esi+4], 2; if cache slot is not different
3555	Serge	40	jne .write_chain
2434	Serge	41	mov dword [esi+4], 1; same as in hd
		42	mov eax, [esi] ; eax = sector to write
		43	cmp eax, [PARTITION_START]
3555	Serge	44	jb danger
2434	Serge	45	cmp eax, [PARTITION_END]
3555	Serge	46	ja danger
709	diamond	47	cmp [hdpos], 0x80
		48	jae @f
580	mario79	49	; DMA write is permitted only if [allow_dma_access]=1
3555	Serge	50	cmp [allow_dma_access], 2
		51	jae .nodma
		52	cmp [dma_hdd], 1
		53	jnz .nodma
709	diamond	54	@@:
3555	Serge	55	; Объединяем запись цепочки последовательных секторов в одно обращение к диску
		56	cmp ecx, 1
		57	jz .nonext
		58	cmp dword [esi+8+4], 2
		59	jnz .nonext
		60	push eax
		61	inc eax
		62	cmp eax, [esi+8]
		63	pop eax
		64	jnz .nonext
		65	cmp [cache_chain_started], 1
		66	jz @f
		67	mov [cache_chain_started], 1
		68	mov [cache_chain_size], 0
		69	mov [cache_chain_pos], edi
		70	mov [cache_chain_ptr], esi
580	mario79	71	@@:
3555	Serge	72	inc [cache_chain_size]
		73	cmp [cache_chain_size], 16
		74	jnz .continue
		75	jmp .write_chain
580	mario79	76	.nonext:
3555	Serge	77	call flush_cache_chain
		78	mov [cache_chain_size], 1
		79	mov [cache_chain_ptr], esi
		80	call write_cache_sector
		81	jmp .continue
580	mario79	82	.nodma:
3555	Serge	83	call cache_write_pio
580	mario79	84	.write_chain:
3555	Serge	85	call flush_cache_chain
580	mario79	86	.continue:
585	mario79	87	danger:
2434	Serge	88	add esi, 8
3555	Serge	89	inc edi
		90	dec ecx
		91	jnz write_cache_more
		92	call flush_cache_chain
580	mario79	93	return_02:
3555	Serge	94	pop edi esi edx ecx eax
		95	ret
580	mario79	96
		97	flush_cache_chain:
3555	Serge	98	cmp [cache_chain_started], 0
		99	jz @f
		100	call write_cache_chain
		101	mov [cache_chain_started], 0
580	mario79	102	@@:
3555	Serge	103	ret
585	mario79	104	;--------------------------------------------------------------------
580	mario79	105	align 4
		106	find_empty_slot:
		107	;-----------------------------------------------------------
		108	; find empty or read slot, flush cache if next 10% is used by write
		109	; output : edi = cache slot
		110	;-----------------------------------------------------------
		111	; push ecx esi
		112
585	mario79	113	search_again:
3555	Serge	114	call calculate_cache_3
2434	Serge	115	shr ecx, 3
585	mario79	116	search_for_empty:
3555	Serge	117	inc edi
		118	call calculate_cache_4
		119	jbe inside_cache
2434	Serge	120	mov edi, 1
585	mario79	121	inside_cache:
3555	Serge	122	push esi
		123	call calculate_cache_1
2434	Serge	124	cmp dword [edi*8+esi+4], 2
3555	Serge	125	pop esi
		126	jb found_slot ; it's empty or read
		127	dec ecx
		128	jnz search_for_empty
		129	call write_cache ; no empty slots found, write all
2434	Serge	130	cmp [hd_error], 0
3555	Serge	131	jne found_slot_access_denied
		132	jmp search_again ; and start again
585	mario79	133	found_slot:
3555	Serge	134	call calculate_cache_5
585	mario79	135	found_slot_access_denied:
3555	Serge	136	ret
585	mario79	137	;--------------------------------------------------------------------
580	mario79	138	align 4
		139	clear_hd_cache:
3555	Serge	140	ret
580	mario79	141	;--------------------------------------------------------------------
		142	align 4
		143	calculate_cache:
		144	; mov ecx,cache_max ; entries in cache
		145	; mov esi,HD_CACHE+8
		146
		147	; 1 - IDE0 ... 4 - IDE3
		148	.ide0:
2434	Serge	149	cmp [hdpos], 1
3555	Serge	150	jne .ide1
2434	Serge	151	cmp [hdd_appl_data], 0
3555	Serge	152	jne .ide0_appl_data
2434	Serge	153	mov ecx, [cache_ide0_system_sad_size]
		154	mov esi, [cache_ide0_pointer]
3555	Serge	155	ret
580	mario79	156	.ide0_appl_data:
2434	Serge	157	mov ecx, [cache_ide0_appl_sad_size]
		158	mov esi, [cache_ide0_data_pointer]
3555	Serge	159	ret
580	mario79	160	.ide1:
2434	Serge	161	cmp [hdpos], 2
3555	Serge	162	jne .ide2
2434	Serge	163	cmp [hdd_appl_data], 0
3555	Serge	164	jne .ide1_appl_data
2434	Serge	165	mov ecx, [cache_ide1_system_sad_size]
		166	mov esi, [cache_ide1_pointer]
3555	Serge	167	ret
580	mario79	168	.ide1_appl_data:
2434	Serge	169	mov ecx, [cache_ide1_appl_sad_size]
		170	mov esi, [cache_ide1_data_pointer]
3555	Serge	171	ret
580	mario79	172	.ide2:
2434	Serge	173	cmp [hdpos], 3
3555	Serge	174	jne .ide3
2434	Serge	175	cmp [hdd_appl_data], 0
3555	Serge	176	jne .ide2_appl_data
2434	Serge	177	mov ecx, [cache_ide2_system_sad_size]
		178	mov esi, [cache_ide2_pointer]
3555	Serge	179	ret
580	mario79	180	.ide2_appl_data:
2434	Serge	181	mov ecx, [cache_ide2_appl_sad_size]
		182	mov esi, [cache_ide2_data_pointer]
3555	Serge	183	ret
580	mario79	184	.ide3:
2434	Serge	185	cmp [hdpos], 4
3555	Serge	186	jne .noide
2434	Serge	187	cmp [hdd_appl_data], 0
3555	Serge	188	jne .ide3_appl_data
2434	Serge	189	mov ecx, [cache_ide3_system_sad_size]
		190	mov esi, [cache_ide3_pointer]
3555	Serge	191	ret
580	mario79	192	.ide3_appl_data:
2434	Serge	193	mov ecx, [cache_ide3_appl_sad_size]
		194	mov esi, [cache_ide3_data_pointer]
3555	Serge	195	ret
709	diamond	196	.noide:
3555	Serge	197	push eax
2434	Serge	198	mov eax, [hdpos]
		199	sub eax, 80h
3555	Serge	200	cmp byte [BiosDisksData+eax*4+2], -1
		201	jz @f
2434	Serge	202	movzx eax, byte [BiosDisksData+eax*4+2]
		203	imul eax, cache_ide1-cache_ide0
		204	add eax, cache_ide0
3555	Serge	205	jmp .get
709	diamond	206	@@:
2434	Serge	207	imul eax, cache_ide1-cache_ide0
		208	add eax, BiosDiskCaches
709	diamond	209	.get:
2434	Serge	210	cmp [hdd_appl_data], 0
3555	Serge	211	jne .bd_appl_data
2434	Serge	212	mov ecx, [cache_ide0_system_sad_size-cache_ide0+eax]
		213	mov esi, [cache_ide0_pointer-cache_ide0+eax]
3555	Serge	214	pop eax
		215	ret
709	diamond	216	.bd_appl_data:
2434	Serge	217	mov ecx, [cache_ide0_appl_sad_size-cache_ide0+eax]
		218	mov esi, [cache_ide0_data_pointer-cache_ide0+eax]
3555	Serge	219	pop eax
		220	ret
580	mario79	221	;--------------------------------------------------------------------
		222	align 4
		223	calculate_cache_1:
		224	; lea esi,[edi*8+HD_CACHE]
		225	; 1 - IDE0 ... 4 - IDE3
		226	.ide0:
2434	Serge	227	cmp [hdpos], 1
3555	Serge	228	jne .ide1
2434	Serge	229	cmp [hdd_appl_data], 0
3555	Serge	230	jne .ide0_appl_data
2434	Serge	231	mov esi, [cache_ide0_pointer]
3555	Serge	232	ret
580	mario79	233	.ide0_appl_data:
2434	Serge	234	mov esi, [cache_ide0_data_pointer]
3555	Serge	235	ret
580	mario79	236	.ide1:
2434	Serge	237	cmp [hdpos], 2
3555	Serge	238	jne .ide2
2434	Serge	239	cmp [hdd_appl_data], 0
3555	Serge	240	jne .ide1_appl_data
2434	Serge	241	mov esi, [cache_ide1_pointer]
3555	Serge	242	ret
580	mario79	243	.ide1_appl_data:
2434	Serge	244	mov esi, [cache_ide1_data_pointer]
3555	Serge	245	ret
580	mario79	246	.ide2:
2434	Serge	247	cmp [hdpos], 3
3555	Serge	248	jne .ide3
2434	Serge	249	cmp [hdd_appl_data], 0
3555	Serge	250	jne .ide2_appl_data
2434	Serge	251	mov esi, [cache_ide2_pointer]
3555	Serge	252	ret
580	mario79	253	.ide2_appl_data:
2434	Serge	254	mov esi, [cache_ide2_data_pointer]
3555	Serge	255	ret
580	mario79	256	.ide3:
2434	Serge	257	cmp [hdpos], 4
3555	Serge	258	jne .noide
2434	Serge	259	cmp [hdd_appl_data], 0
3555	Serge	260	jne .ide3_appl_data
2434	Serge	261	mov esi, [cache_ide3_pointer]
3555	Serge	262	ret
580	mario79	263	.ide3_appl_data:
2434	Serge	264	mov esi, [cache_ide3_data_pointer]
3555	Serge	265	ret
709	diamond	266	.noide:
3555	Serge	267	push eax
2434	Serge	268	mov eax, [hdpos]
		269	sub eax, 80h
3555	Serge	270	cmp byte [BiosDisksData+eax*4+2], -1
		271	jz @f
2434	Serge	272	movzx eax, byte [BiosDisksData+eax*4+2]
		273	imul eax, cache_ide1-cache_ide0
		274	add eax, cache_ide0
3555	Serge	275	jmp .get
709	diamond	276	@@:
2434	Serge	277	imul eax, cache_ide1-cache_ide0
		278	add eax, BiosDiskCaches
709	diamond	279	.get:
2434	Serge	280	cmp [hdd_appl_data], 0
3555	Serge	281	jne .bd_appl_data
2434	Serge	282	mov esi, [cache_ide0_pointer-cache_ide0+eax]
3555	Serge	283	pop eax
		284	ret
709	diamond	285	.bd_appl_data:
2434	Serge	286	mov esi, [cache_ide0_data_pointer-cache_ide0+eax]
3555	Serge	287	pop eax
		288	ret
709	diamond	289
580	mario79	290	;--------------------------------------------------------------------
		291	align 4
		292	calculate_cache_2:
		293	; add esi,HD_CACHE+65536
		294	; 1 - IDE0 ... 4 - IDE3
		295	.ide0:
2434	Serge	296	cmp [hdpos], 1
3555	Serge	297	jne .ide1
2434	Serge	298	cmp [hdd_appl_data], 0
3555	Serge	299	jne .ide0_appl_data
2434	Serge	300	mov eax, [cache_ide0_system_data]
3555	Serge	301	ret
580	mario79	302	.ide0_appl_data:
2434	Serge	303	mov eax, [cache_ide0_appl_data]
3555	Serge	304	ret
580	mario79	305	.ide1:
2434	Serge	306	cmp [hdpos], 2
3555	Serge	307	jne .ide2
2434	Serge	308	cmp [hdd_appl_data], 0
3555	Serge	309	jne .ide1_appl_data
2434	Serge	310	mov eax, [cache_ide1_system_data]
3555	Serge	311	ret
580	mario79	312	.ide1_appl_data:
2434	Serge	313	mov eax, [cache_ide1_appl_data]
3555	Serge	314	ret
580	mario79	315	.ide2:
2434	Serge	316	cmp [hdpos], 3
3555	Serge	317	jne .ide3
2434	Serge	318	cmp [hdd_appl_data], 0
3555	Serge	319	jne .ide2_appl_data
2434	Serge	320	mov eax, [cache_ide2_system_data]
3555	Serge	321	ret
580	mario79	322	.ide2_appl_data:
2434	Serge	323	mov eax, [cache_ide2_appl_data]
3555	Serge	324	ret
580	mario79	325	.ide3:
2434	Serge	326	cmp [hdpos], 4
3555	Serge	327	jne .noide
2434	Serge	328	cmp [hdd_appl_data], 0
3555	Serge	329	jne .ide3_appl_data
2434	Serge	330	mov eax, [cache_ide3_system_data]
3555	Serge	331	ret
580	mario79	332	.ide3_appl_data:
2434	Serge	333	mov eax, [cache_ide3_appl_data]
3555	Serge	334	ret
709	diamond	335	.noide:
2434	Serge	336	mov eax, [hdpos]
		337	sub eax, 80h
3555	Serge	338	cmp byte [BiosDisksData+eax*4+2], -1
		339	jz @f
2434	Serge	340	movzx eax, byte [BiosDisksData+eax*4+2]
		341	imul eax, cache_ide1-cache_ide0
		342	add eax, cache_ide0
3555	Serge	343	jmp .get
709	diamond	344	@@:
2434	Serge	345	imul eax, cache_ide1-cache_ide0
		346	add eax, BiosDiskCaches
709	diamond	347	.get:
2434	Serge	348	cmp [hdd_appl_data], 0
3555	Serge	349	jne .bd_appl_data
2434	Serge	350	mov eax, [cache_ide0_system_data-cache_ide0+eax]
3555	Serge	351	ret
709	diamond	352	.bd_appl_data:
2434	Serge	353	mov eax, [cache_ide0_appl_data-cache_ide0+eax]
3555	Serge	354	ret
580	mario79	355	;--------------------------------------------------------------------
		356	align 4
		357	calculate_cache_3:
		358	; mov ecx,cache_max*10/100
		359	; mov edi,[cache_search_start]
		360
		361	; 1 - IDE0 ... 4 - IDE3
		362	.ide0:
2434	Serge	363	cmp [hdpos], 1
3555	Serge	364	jne .ide1
2434	Serge	365	cmp [hdd_appl_data], 0
3555	Serge	366	jne .ide0_appl_data
2434	Serge	367	mov ecx, [cache_ide0_system_sad_size]
		368	mov edi, [cache_ide0_search_start]
3555	Serge	369	ret
580	mario79	370	.ide0_appl_data:
2434	Serge	371	mov ecx, [cache_ide0_appl_sad_size]
		372	mov edi, [cache_ide0_appl_search_start]
3555	Serge	373	ret
580	mario79	374	.ide1:
2434	Serge	375	cmp [hdpos], 2
3555	Serge	376	jne .ide2
2434	Serge	377	cmp [hdd_appl_data], 0
3555	Serge	378	jne .ide1_appl_data
2434	Serge	379	mov ecx, [cache_ide1_system_sad_size]
		380	mov edi, [cache_ide1_search_start]
3555	Serge	381	ret
580	mario79	382	.ide1_appl_data:
2434	Serge	383	mov ecx, [cache_ide1_appl_sad_size]
		384	mov edi, [cache_ide1_appl_search_start]
3555	Serge	385	ret
580	mario79	386	.ide2:
2434	Serge	387	cmp [hdpos], 3
3555	Serge	388	jne .ide3
2434	Serge	389	cmp [hdd_appl_data], 0
3555	Serge	390	jne .ide2_appl_data
2434	Serge	391	mov ecx, [cache_ide2_system_sad_size]
		392	mov edi, [cache_ide2_search_start]
3555	Serge	393	ret
580	mario79	394	.ide2_appl_data:
2434	Serge	395	mov ecx, [cache_ide2_appl_sad_size]
		396	mov edi, [cache_ide2_appl_search_start]
3555	Serge	397	ret
580	mario79	398	.ide3:
2434	Serge	399	cmp [hdpos], 4
3555	Serge	400	jne .noide
2434	Serge	401	cmp [hdd_appl_data], 0
3555	Serge	402	jne .ide3_appl_data
2434	Serge	403	mov ecx, [cache_ide3_system_sad_size]
		404	mov edi, [cache_ide3_search_start]
3555	Serge	405	ret
580	mario79	406	.ide3_appl_data:
2434	Serge	407	mov ecx, [cache_ide3_appl_sad_size]
		408	mov edi, [cache_ide3_appl_search_start]
3555	Serge	409	ret
709	diamond	410	.noide:
3555	Serge	411	push eax
2434	Serge	412	mov eax, [hdpos]
		413	sub eax, 80h
3555	Serge	414	cmp byte [BiosDisksData+eax*4+2], -1
		415	jz @f
2434	Serge	416	movzx eax, byte [BiosDisksData+eax*4+2]
		417	imul eax, cache_ide1-cache_ide0
		418	add eax, cache_ide0
3555	Serge	419	jmp .get
709	diamond	420	@@:
2434	Serge	421	imul eax, cache_ide1-cache_ide0
		422	add eax, BiosDiskCaches
709	diamond	423	.get:
2434	Serge	424	cmp [hdd_appl_data], 0
3555	Serge	425	jne .bd_appl_data
2434	Serge	426	mov ecx, [cache_ide0_system_sad_size-cache_ide0+eax]
		427	mov edi, [cache_ide0_search_start-cache_ide0+eax]
3555	Serge	428	pop eax
		429	ret
709	diamond	430	.bd_appl_data:
2434	Serge	431	mov ecx, [cache_ide0_appl_sad_size-cache_ide0+eax]
		432	mov edi, [cache_ide0_appl_search_start-cache_ide0+eax]
3555	Serge	433	pop eax
		434	ret
580	mario79	435	;--------------------------------------------------------------------
		436	align 4
		437	calculate_cache_4:
		438	; cmp edi,cache_max
		439	; 1 - IDE0 ... 4 - IDE3
		440	.ide0:
2434	Serge	441	cmp [hdpos], 1
3555	Serge	442	jne .ide1
2434	Serge	443	cmp [hdd_appl_data], 0
3555	Serge	444	jne .ide0_appl_data
2434	Serge	445	cmp edi, [cache_ide0_system_sad_size]
3555	Serge	446	ret
580	mario79	447	.ide0_appl_data:
2434	Serge	448	cmp edi, [cache_ide0_appl_sad_size]
3555	Serge	449	ret
580	mario79	450	.ide1:
2434	Serge	451	cmp [hdpos], 2
3555	Serge	452	jne .ide2
2434	Serge	453	cmp [hdd_appl_data], 0
3555	Serge	454	jne .ide1_appl_data
2434	Serge	455	cmp edi, [cache_ide1_system_sad_size]
3555	Serge	456	ret
580	mario79	457	.ide1_appl_data:
2434	Serge	458	cmp edi, [cache_ide1_appl_sad_size]
3555	Serge	459	ret
580	mario79	460	.ide2:
2434	Serge	461	cmp [hdpos], 3
3555	Serge	462	jne .ide3
2434	Serge	463	cmp [hdd_appl_data], 0
3555	Serge	464	jne .ide2_appl_data
2434	Serge	465	cmp edi, [cache_ide2_system_sad_size]
3555	Serge	466	ret
580	mario79	467	.ide2_appl_data:
2434	Serge	468	cmp edi, [cache_ide2_appl_sad_size]
3555	Serge	469	ret
580	mario79	470	.ide3:
2434	Serge	471	cmp [hdpos], 4
3555	Serge	472	jne .noide
2434	Serge	473	cmp [hdd_appl_data], 0
3555	Serge	474	jne .ide3_appl_data
2434	Serge	475	cmp edi, [cache_ide3_system_sad_size]
3555	Serge	476	ret
580	mario79	477	.ide3_appl_data:
2434	Serge	478	cmp edi, [cache_ide3_appl_sad_size]
3555	Serge	479	ret
709	diamond	480	.noide:
3555	Serge	481	push eax
2434	Serge	482	mov eax, [hdpos]
		483	sub eax, 80h
3555	Serge	484	cmp byte [BiosDisksData+eax*4+2], -1
		485	jz @f
2434	Serge	486	movzx eax, byte [BiosDisksData+eax*4+2]
		487	imul eax, cache_ide1-cache_ide0
		488	add eax, cache_ide0
3555	Serge	489	jmp .get
709	diamond	490	@@:
2434	Serge	491	imul eax, cache_ide1-cache_ide0
		492	add eax, BiosDiskCaches
709	diamond	493	.get:
2434	Serge	494	cmp [hdd_appl_data], 0
3555	Serge	495	jne .bd_appl_data
2434	Serge	496	cmp edi, [cache_ide0_system_sad_size-cache_ide0+eax]
3555	Serge	497	pop eax
		498	ret
709	diamond	499	.bd_appl_data:
2434	Serge	500	cmp edi, [cache_ide0_appl_sad_size-cache_ide0+eax]
3555	Serge	501	pop eax
		502	ret
709	diamond	503
580	mario79	504	;--------------------------------------------------------------------
		505	align 4
		506	calculate_cache_5:
		507	; mov [cache_search_start],edi
		508	; 1 - IDE0 ... 4 - IDE3
		509	.ide0:
2434	Serge	510	cmp [hdpos], 1
3555	Serge	511	jne .ide1
2434	Serge	512	cmp [hdd_appl_data], 0
3555	Serge	513	jne .ide0_appl_data
2434	Serge	514	mov [cache_ide0_search_start], edi
3555	Serge	515	ret
580	mario79	516	.ide0_appl_data:
2434	Serge	517	mov [cache_ide0_appl_search_start], edi
3555	Serge	518	ret
580	mario79	519	.ide1:
2434	Serge	520	cmp [hdpos], 2
3555	Serge	521	jne .ide2
2434	Serge	522	cmp [hdd_appl_data], 0
3555	Serge	523	jne .ide1_appl_data
2434	Serge	524	mov [cache_ide1_search_start], edi
3555	Serge	525	ret
580	mario79	526	.ide1_appl_data:
2434	Serge	527	mov [cache_ide1_appl_search_start], edi
3555	Serge	528	ret
580	mario79	529	.ide2:
2434	Serge	530	cmp [hdpos], 3
3555	Serge	531	jne .ide3
2434	Serge	532	cmp [hdd_appl_data], 0
3555	Serge	533	jne .ide2_appl_data
2434	Serge	534	mov [cache_ide2_search_start], edi
3555	Serge	535	ret
580	mario79	536	.ide2_appl_data:
2434	Serge	537	mov [cache_ide2_appl_search_start], edi
3555	Serge	538	ret
580	mario79	539	.ide3:
2434	Serge	540	cmp [hdpos], 4
3555	Serge	541	jne .noide
2434	Serge	542	cmp [hdd_appl_data], 0
3555	Serge	543	jne .ide3_appl_data
2434	Serge	544	mov [cache_ide3_search_start], edi
3555	Serge	545	ret
580	mario79	546	.ide3_appl_data:
2434	Serge	547	mov [cache_ide3_appl_search_start], edi
3555	Serge	548	ret
709	diamond	549	.noide:
3555	Serge	550	push eax
2434	Serge	551	mov eax, [hdpos]
		552	sub eax, 80h
3555	Serge	553	cmp byte [BiosDisksData+eax*4+2], -1
		554	jz @f
2434	Serge	555	movzx eax, byte [BiosDisksData+eax*4+2]
		556	imul eax, cache_ide1-cache_ide0
		557	add eax, cache_ide0
3555	Serge	558	jmp .get
709	diamond	559	@@:
2434	Serge	560	imul eax, cache_ide1-cache_ide0
		561	add eax, BiosDiskCaches
709	diamond	562	.get:
2434	Serge	563	cmp [hdd_appl_data], 0
3555	Serge	564	jne .bd_appl_data
2434	Serge	565	mov [cache_ide0_search_start-cache_ide0+eax], edi
3555	Serge	566	pop eax
		567	ret
709	diamond	568	.bd_appl_data:
2434	Serge	569	mov [cache_ide0_appl_search_start-cache_ide0+eax], edi
3555	Serge	570	pop eax
		571	ret
585	mario79	572
580	mario79	573	;--------------------------------------------------------------------
		574	align 4
585	mario79	575	find_empty_slot_CD_cache:
		576	;-----------------------------------------------------------
		577	; find empty or read slot, flush cache if next 10% is used by write
		578	; output : edi = cache slot
		579	;-----------------------------------------------------------
		580	.search_again:
3555	Serge	581	call cd_calculate_cache_3
585	mario79	582	.search_for_empty:
3555	Serge	583	inc edi
		584	call cd_calculate_cache_4
		585	jbe .inside_cache
2434	Serge	586	mov edi, 1
585	mario79	587	.inside_cache:
3555	Serge	588	call cd_calculate_cache_5
		589	ret
585	mario79	590	;--------------------------------------------------------------------
		591	clear_CD_cache:
3555	Serge	592	pusha
585	mario79	593	.ide0:
2434	Serge	594	xor eax, eax
		595	cmp [cdpos], 1
3555	Serge	596	jne .ide1
2434	Serge	597	mov [cache_ide0_search_start], eax
		598	mov ecx, [cache_ide0_system_sad_size]
		599	mov edi, [cache_ide0_pointer]
3555	Serge	600	call .clear
2434	Serge	601	mov [cache_ide0_appl_search_start], eax
		602	mov ecx, [cache_ide0_appl_sad_size]
		603	mov edi, [cache_ide0_data_pointer]
3555	Serge	604	jmp .continue
585	mario79	605	.ide1:
2434	Serge	606	cmp [cdpos], 2
3555	Serge	607	jne .ide2
2434	Serge	608	mov [cache_ide1_search_start], eax
		609	mov ecx, [cache_ide1_system_sad_size]
		610	mov edi, [cache_ide1_pointer]
3555	Serge	611	call .clear
2434	Serge	612	mov [cache_ide1_appl_search_start], eax
		613	mov ecx, [cache_ide1_appl_sad_size]
		614	mov edi, [cache_ide1_data_pointer]
3555	Serge	615	jmp .continue
585	mario79	616	.ide2:
2434	Serge	617	cmp [cdpos], 3
3555	Serge	618	jne .ide3
2434	Serge	619	mov [cache_ide2_search_start], eax
		620	mov ecx, [cache_ide2_system_sad_size]
		621	mov edi, [cache_ide2_pointer]
3555	Serge	622	call .clear
2434	Serge	623	mov [cache_ide2_appl_search_start], eax
		624	mov ecx, [cache_ide2_appl_sad_size]
		625	mov edi, [cache_ide2_data_pointer]
3555	Serge	626	jmp .continue
585	mario79	627	.ide3:
2434	Serge	628	mov [cache_ide3_search_start], eax
		629	mov ecx, [cache_ide3_system_sad_size]
		630	mov edi, [cache_ide3_pointer]
3555	Serge	631	call .clear
2434	Serge	632	mov [cache_ide3_appl_search_start], eax
		633	mov ecx, [cache_ide3_appl_sad_size]
		634	mov edi, [cache_ide3_data_pointer]
585	mario79	635	.continue:
3555	Serge	636	call .clear
		637	popa
		638	ret
585	mario79	639	.clear:
2434	Serge	640	shl ecx, 1
3555	Serge	641	cld
		642	rep stosd
		643	ret
585	mario79	644	;--------------------------------------------------------------------
		645	align 4
		646	cd_calculate_cache:
		647	; mov ecx,cache_max ; entries in cache
		648	; mov esi,HD_CACHE+8
		649
		650	; 1 - IDE0 ... 4 - IDE3
		651	.ide0:
2434	Serge	652	cmp [cdpos], 1
3555	Serge	653	jne .ide1
2434	Serge	654	cmp [cd_appl_data], 0
3555	Serge	655	jne .ide0_appl_data
2434	Serge	656	mov ecx, [cache_ide0_system_sad_size]
		657	mov esi, [cache_ide0_pointer]
3555	Serge	658	ret
585	mario79	659	.ide0_appl_data:
2434	Serge	660	mov ecx, [cache_ide0_appl_sad_size]
		661	mov esi, [cache_ide0_data_pointer]
3555	Serge	662	ret
585	mario79	663	.ide1:
2434	Serge	664	cmp [cdpos], 2
3555	Serge	665	jne .ide2
2434	Serge	666	cmp [cd_appl_data], 0
3555	Serge	667	jne .ide1_appl_data
2434	Serge	668	mov ecx, [cache_ide1_system_sad_size]
		669	mov esi, [cache_ide1_pointer]
3555	Serge	670	ret
585	mario79	671	.ide1_appl_data:
2434	Serge	672	mov ecx, [cache_ide1_appl_sad_size]
		673	mov esi, [cache_ide1_data_pointer]
3555	Serge	674	ret
585	mario79	675	.ide2:
2434	Serge	676	cmp [cdpos], 3
3555	Serge	677	jne .ide3
2434	Serge	678	cmp [cd_appl_data], 0
3555	Serge	679	jne .ide2_appl_data
2434	Serge	680	mov ecx, [cache_ide2_system_sad_size]
		681	mov esi, [cache_ide2_pointer]
3555	Serge	682	ret
585	mario79	683	.ide2_appl_data:
2434	Serge	684	mov ecx, [cache_ide2_appl_sad_size]
		685	mov esi, [cache_ide2_data_pointer]
3555	Serge	686	ret
585	mario79	687	.ide3:
2434	Serge	688	cmp [cd_appl_data], 0
3555	Serge	689	jne .ide3_appl_data
2434	Serge	690	mov ecx, [cache_ide3_system_sad_size]
		691	mov esi, [cache_ide3_pointer]
3555	Serge	692	ret
585	mario79	693	.ide3_appl_data:
2434	Serge	694	mov ecx, [cache_ide3_appl_sad_size]
		695	mov esi, [cache_ide3_data_pointer]
3555	Serge	696	ret
585	mario79	697	;--------------------------------------------------------------------
		698	align 4
		699	cd_calculate_cache_1:
		700	; lea esi,[edi*8+HD_CACHE]
		701	; 1 - IDE0 ... 4 - IDE3
		702	.ide0:
2434	Serge	703	cmp [cdpos], 1
3555	Serge	704	jne .ide1
2434	Serge	705	cmp [cd_appl_data], 0
3555	Serge	706	jne .ide0_appl_data
2434	Serge	707	mov esi, [cache_ide0_pointer]
3555	Serge	708	ret
585	mario79	709	.ide0_appl_data:
2434	Serge	710	mov esi, [cache_ide0_data_pointer]
3555	Serge	711	ret
585	mario79	712	.ide1:
2434	Serge	713	cmp [cdpos], 2
3555	Serge	714	jne .ide2
2434	Serge	715	cmp [cd_appl_data], 0
3555	Serge	716	jne .ide1_appl_data
2434	Serge	717	mov esi, [cache_ide1_pointer]
3555	Serge	718	ret
585	mario79	719	.ide1_appl_data:
2434	Serge	720	mov esi, [cache_ide1_data_pointer]
3555	Serge	721	ret
585	mario79	722	.ide2:
2434	Serge	723	cmp [cdpos], 3
3555	Serge	724	jne .ide3
2434	Serge	725	cmp [cd_appl_data], 0
3555	Serge	726	jne .ide2_appl_data
2434	Serge	727	mov esi, [cache_ide2_pointer]
3555	Serge	728	ret
585	mario79	729	.ide2_appl_data:
2434	Serge	730	mov esi, [cache_ide2_data_pointer]
3555	Serge	731	ret
585	mario79	732	.ide3:
2434	Serge	733	cmp [cd_appl_data], 0
3555	Serge	734	jne .ide3_appl_data
2434	Serge	735	mov esi, [cache_ide3_pointer]
3555	Serge	736	ret
585	mario79	737	.ide3_appl_data:
2434	Serge	738	mov esi, [cache_ide3_data_pointer]
3555	Serge	739	ret
585	mario79	740	;--------------------------------------------------------------------
		741	align 4
		742	cd_calculate_cache_2:
		743	; add esi,HD_CACHE+65536
		744	; 1 - IDE0 ... 4 - IDE3
		745	.ide0:
2434	Serge	746	cmp [cdpos], 1
3555	Serge	747	jne .ide1
2434	Serge	748	cmp [cd_appl_data], 0
3555	Serge	749	jne .ide0_appl_data
2434	Serge	750	mov eax, [cache_ide0_system_data]
3555	Serge	751	ret
585	mario79	752	.ide0_appl_data:
2434	Serge	753	mov eax, [cache_ide0_appl_data]
3555	Serge	754	ret
585	mario79	755	.ide1:
2434	Serge	756	cmp [cdpos], 2
3555	Serge	757	jne .ide2
2434	Serge	758	cmp [cd_appl_data], 0
3555	Serge	759	jne .ide1_appl_data
2434	Serge	760	mov eax, [cache_ide1_system_data]
3555	Serge	761	ret
585	mario79	762	.ide1_appl_data:
2434	Serge	763	mov eax, [cache_ide1_appl_data]
3555	Serge	764	ret
585	mario79	765	.ide2:
2434	Serge	766	cmp [cdpos], 3
3555	Serge	767	jne .ide3
2434	Serge	768	cmp [cd_appl_data], 0
3555	Serge	769	jne .ide2_appl_data
2434	Serge	770	mov eax, [cache_ide2_system_data]
3555	Serge	771	ret
585	mario79	772	.ide2_appl_data:
2434	Serge	773	mov eax, [cache_ide2_appl_data]
3555	Serge	774	ret
585	mario79	775	.ide3:
2434	Serge	776	cmp [cd_appl_data], 0
3555	Serge	777	jne .ide3_appl_data
2434	Serge	778	mov eax, [cache_ide3_system_data]
3555	Serge	779	ret
585	mario79	780	.ide3_appl_data:
2434	Serge	781	mov eax, [cache_ide3_appl_data]
3555	Serge	782	ret
585	mario79	783	;--------------------------------------------------------------------
		784	align 4
		785	cd_calculate_cache_3:
		786	; mov ecx,cache_max*10/100
		787	; mov edi,[cache_search_start]
		788
		789	; 1 - IDE0 ... 4 - IDE3
		790	.ide0:
2434	Serge	791	cmp [cdpos], 1
3555	Serge	792	jne .ide1
2434	Serge	793	cmp [cd_appl_data], 0
3555	Serge	794	jne .ide0_appl_data
2434	Serge	795	mov edi, [cache_ide0_search_start]
3555	Serge	796	ret
585	mario79	797	.ide0_appl_data:
2434	Serge	798	mov edi, [cache_ide0_appl_search_start]
3555	Serge	799	ret
585	mario79	800	.ide1:
2434	Serge	801	cmp [cdpos], 2
3555	Serge	802	jne .ide2
2434	Serge	803	cmp [cd_appl_data], 0
3555	Serge	804	jne .ide1_appl_data
2434	Serge	805	mov edi, [cache_ide1_search_start]
3555	Serge	806	ret
585	mario79	807	.ide1_appl_data:
2434	Serge	808	mov edi, [cache_ide1_appl_search_start]
3555	Serge	809	ret
585	mario79	810	.ide2:
2434	Serge	811	cmp [cdpos], 3
3555	Serge	812	jne .ide3
2434	Serge	813	cmp [cd_appl_data], 0
3555	Serge	814	jne .ide2_appl_data
2434	Serge	815	mov edi, [cache_ide2_search_start]
3555	Serge	816	ret
585	mario79	817	.ide2_appl_data:
2434	Serge	818	mov edi, [cache_ide2_appl_search_start]
3555	Serge	819	ret
585	mario79	820	.ide3:
2434	Serge	821	cmp [cd_appl_data], 0
3555	Serge	822	jne .ide3_appl_data
2434	Serge	823	mov edi, [cache_ide3_search_start]
3555	Serge	824	ret
585	mario79	825	.ide3_appl_data:
2434	Serge	826	mov edi, [cache_ide3_appl_search_start]
3555	Serge	827	ret
585	mario79	828	;--------------------------------------------------------------------
		829	align 4
		830	cd_calculate_cache_4:
		831	; cmp edi,cache_max
		832	; 1 - IDE0 ... 4 - IDE3
		833	.ide0:
2434	Serge	834	cmp [cdpos], 1
3555	Serge	835	jne .ide1
2434	Serge	836	cmp [cd_appl_data], 0
3555	Serge	837	jne .ide0_appl_data
2434	Serge	838	cmp edi, [cache_ide0_system_sad_size]
3555	Serge	839	ret
585	mario79	840	.ide0_appl_data:
2434	Serge	841	cmp edi, [cache_ide0_appl_sad_size]
3555	Serge	842	ret
585	mario79	843	.ide1:
2434	Serge	844	cmp [cdpos], 2
3555	Serge	845	jne .ide2
2434	Serge	846	cmp [cd_appl_data], 0
3555	Serge	847	jne .ide1_appl_data
2434	Serge	848	cmp edi, [cache_ide1_system_sad_size]
3555	Serge	849	ret
585	mario79	850	.ide1_appl_data:
2434	Serge	851	cmp edi, [cache_ide1_appl_sad_size]
3555	Serge	852	ret
585	mario79	853	.ide2:
2434	Serge	854	cmp [cdpos], 3
3555	Serge	855	jne .ide3
2434	Serge	856	cmp [cd_appl_data], 0
3555	Serge	857	jne .ide2_appl_data
2434	Serge	858	cmp edi, [cache_ide2_system_sad_size]
3555	Serge	859	ret
585	mario79	860	.ide2_appl_data:
2434	Serge	861	cmp edi, [cache_ide2_appl_sad_size]
3555	Serge	862	ret
585	mario79	863	.ide3:
2434	Serge	864	cmp [cd_appl_data], 0
3555	Serge	865	jne .ide3_appl_data
2434	Serge	866	cmp edi, [cache_ide3_system_sad_size]
3555	Serge	867	ret
585	mario79	868	.ide3_appl_data:
2434	Serge	869	cmp edi, [cache_ide3_appl_sad_size]
3555	Serge	870	ret
585	mario79	871	;--------------------------------------------------------------------
		872	align 4
		873	cd_calculate_cache_5:
		874	; mov [cache_search_start],edi
		875	; 1 - IDE0 ... 4 - IDE3
		876	.ide0:
2434	Serge	877	cmp [cdpos], 1
3555	Serge	878	jne .ide1
2434	Serge	879	cmp [cd_appl_data], 0
3555	Serge	880	jne .ide0_appl_data
2434	Serge	881	mov [cache_ide0_search_start], edi
3555	Serge	882	ret
585	mario79	883	.ide0_appl_data:
2434	Serge	884	mov [cache_ide0_appl_search_start], edi
3555	Serge	885	ret
585	mario79	886	.ide1:
2434	Serge	887	cmp [cdpos], 2
3555	Serge	888	jne .ide2
2434	Serge	889	cmp [cd_appl_data], 0
3555	Serge	890	jne .ide1_appl_data
2434	Serge	891	mov [cache_ide1_search_start], edi
3555	Serge	892	ret
585	mario79	893	.ide1_appl_data:
2434	Serge	894	mov [cache_ide1_appl_search_start], edi
3555	Serge	895	ret
585	mario79	896	.ide2:
2434	Serge	897	cmp [cdpos], 3
3555	Serge	898	jne .ide3
2434	Serge	899	cmp [cd_appl_data], 0
3555	Serge	900	jne .ide2_appl_data
2434	Serge	901	mov [cache_ide2_search_start], edi
3555	Serge	902	ret
585	mario79	903	.ide2_appl_data:
2434	Serge	904	mov [cache_ide2_appl_search_start], edi
3555	Serge	905	ret
585	mario79	906	.ide3:
2434	Serge	907	cmp [cd_appl_data], 0
3555	Serge	908	jne .ide3_appl_data
2434	Serge	909	mov [cache_ide3_search_start], edi
3555	Serge	910	ret
585	mario79	911	.ide3_appl_data:
2434	Serge	912	mov [cache_ide3_appl_search_start], edi
3555	Serge	913	ret
585	mario79	914	;--------------------------------------------------------------------
		915	;align 4
		916	;calculate_linear_to_real:
		917	; shr eax, 12
		918	; mov eax, [page_tabs+eax*4]
		919	; and eax, 0xFFFFF000
		920	; ret

Subversion Repositories Kolibri OS

(root)/kernel/branches/Kolibri-acpi/blkdev/ide_cache.inc – Rev 3555