[linux-block.git] / drivers / cpufreq / longhaul.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *  longhaul.h
 *  (C) 2003 Dave Jones.
 *
 *  VIA-specific information
 */

union msr_bcr2 {
	struct {
		unsigned Reseved:19,	// 18:0
		ESOFTBF:1,		// 19
		Reserved2:3,		// 22:20
		CLOCKMUL:4,		// 26:23
		Reserved3:5;		// 31:27
	} bits;
	unsigned long val;
};

union msr_longhaul {
	struct {
		unsigned RevisionID:4,	// 3:0
		RevisionKey:4,		// 7:4
		EnableSoftBusRatio:1,	// 8
		EnableSoftVID:1,	// 9
		EnableSoftBSEL:1,	// 10
		Reserved:3,		// 11:13
		SoftBusRatio4:1,	// 14
		VRMRev:1,		// 15
		SoftBusRatio:4,		// 19:16
		SoftVID:5,		// 24:20
		Reserved2:3,		// 27:25
		SoftBSEL:2,		// 29:28
		Reserved3:2,		// 31:30
		MaxMHzBR:4,		// 35:32
		MaximumVID:5,		// 40:36
		MaxMHzFSB:2,		// 42:41
		MaxMHzBR4:1,		// 43
		Reserved4:4,		// 47:44
		MinMHzBR:4,		// 51:48
		MinimumVID:5,		// 56:52
		MinMHzFSB:2,		// 58:57
		MinMHzBR4:1,		// 59
		Reserved5:4;		// 63:60
	} bits;
	unsigned long long val;
};

/*
 * Clock ratio tables. Div/Mod by 10 to get ratio.
 * The eblcr values specify the ratio read from the CPU.
 * The mults values specify what to write to the CPU.
 */

/*
 * VIA C3 Samuel 1  & Samuel 2 (stepping 0)
 */
static const int samuel1_mults[16] = {
	-1, /* 0000 -> RESERVED */
	30, /* 0001 ->  3.0x */
	40, /* 0010 ->  4.0x */
	-1, /* 0011 -> RESERVED */
	-1, /* 0100 -> RESERVED */
	35, /* 0101 ->  3.5x */
	45, /* 0110 ->  4.5x */
	55, /* 0111 ->  5.5x */
	60, /* 1000 ->  6.0x */
	70, /* 1001 ->  7.0x */
	80, /* 1010 ->  8.0x */
	50, /* 1011 ->  5.0x */
	65, /* 1100 ->  6.5x */
	75, /* 1101 ->  7.5x */
	-1, /* 1110 -> RESERVED */
	-1, /* 1111 -> RESERVED */
};

static const int samuel1_eblcr[16] = {
	50, /* 0000 -> RESERVED */
	30, /* 0001 ->  3.0x */
	40, /* 0010 ->  4.0x */
	-1, /* 0011 -> RESERVED */
	55, /* 0100 ->  5.5x */
	35, /* 0101 ->  3.5x */
	45, /* 0110 ->  4.5x */
	-1, /* 0111 -> RESERVED */
	-1, /* 1000 -> RESERVED */
	70, /* 1001 ->  7.0x */
	80, /* 1010 ->  8.0x */
	60, /* 1011 ->  6.0x */
	-1, /* 1100 -> RESERVED */
	75, /* 1101 ->  7.5x */
	-1, /* 1110 -> RESERVED */
	65, /* 1111 ->  6.5x */
};

/*
 * VIA C3 Samuel2 Stepping 1->15
 */
static const int samuel2_eblcr[16] = {
	50,  /* 0000 ->  5.0x */
	30,  /* 0001 ->  3.0x */
	40,  /* 0010 ->  4.0x */
	100, /* 0011 -> 10.0x */
	55,  /* 0100 ->  5.5x */
	35,  /* 0101 ->  3.5x */
	45,  /* 0110 ->  4.5x */
	110, /* 0111 -> 11.0x */
	90,  /* 1000 ->  9.0x */
	70,  /* 1001 ->  7.0x */
	80,  /* 1010 ->  8.0x */
	60,  /* 1011 ->  6.0x */
	120, /* 1100 -> 12.0x */
	75,  /* 1101 ->  7.5x */
	130, /* 1110 -> 13.0x */
	65,  /* 1111 ->  6.5x */
};

/*
 * VIA C3 Ezra
 */
static const int ezra_mults[16] = {
	100, /* 0000 -> 10.0x */
	30,  /* 0001 ->  3.0x */
	40,  /* 0010 ->  4.0x */
	90,  /* 0011 ->  9.0x */
	95,  /* 0100 ->  9.5x */
	35,  /* 0101 ->  3.5x */
	45,  /* 0110 ->  4.5x */
	55,  /* 0111 ->  5.5x */
	60,  /* 1000 ->  6.0x */
	70,  /* 1001 ->  7.0x */
	80,  /* 1010 ->  8.0x */
	50,  /* 1011 ->  5.0x */
	65,  /* 1100 ->  6.5x */
	75,  /* 1101 ->  7.5x */
	85,  /* 1110 ->  8.5x */
	120, /* 1111 -> 12.0x */
};

static const int ezra_eblcr[16] = {
	50,  /* 0000 ->  5.0x */
	30,  /* 0001 ->  3.0x */
	40,  /* 0010 ->  4.0x */
	100, /* 0011 -> 10.0x */
	55,  /* 0100 ->  5.5x */
	35,  /* 0101 ->  3.5x */
	45,  /* 0110 ->  4.5x */
	95,  /* 0111 ->  9.5x */
	90,  /* 1000 ->  9.0x */
	70,  /* 1001 ->  7.0x */
	80,  /* 1010 ->  8.0x */
	60,  /* 1011 ->  6.0x */
	120, /* 1100 -> 12.0x */
	75,  /* 1101 ->  7.5x */
	85,  /* 1110 ->  8.5x */
	65,  /* 1111 ->  6.5x */
};

/*
 * VIA C3 (Ezra-T) [C5M].
 */
static const int ezrat_mults[32] = {
	100, /* 0000 -> 10.0x */
	30,  /* 0001 ->  3.0x */
	40,  /* 0010 ->  4.0x */
	90,  /* 0011 ->  9.0x */
	95,  /* 0100 ->  9.5x */
	35,  /* 0101 ->  3.5x */
	45,  /* 0110 ->  4.5x */
	55,  /* 0111 ->  5.5x */
	60,  /* 1000 ->  6.0x */
	70,  /* 1001 ->  7.0x */
	80,  /* 1010 ->  8.0x */
	50,  /* 1011 ->  5.0x */
	65,  /* 1100 ->  6.5x */
	75,  /* 1101 ->  7.5x */
	85,  /* 1110 ->  8.5x */
	120, /* 1111 ->  12.0x */

	-1,  /* 0000 -> RESERVED (10.0x) */
	110, /* 0001 -> 11.0x */
	-1, /* 0010 -> 12.0x */
	-1,  /* 0011 -> RESERVED (9.0x)*/
	105, /* 0100 -> 10.5x */
	115, /* 0101 -> 11.5x */
	125, /* 0110 -> 12.5x */
	135, /* 0111 -> 13.5x */
	140, /* 1000 -> 14.0x */
	150, /* 1001 -> 15.0x */
	160, /* 1010 -> 16.0x */
	130, /* 1011 -> 13.0x */
	145, /* 1100 -> 14.5x */
	155, /* 1101 -> 15.5x */
	-1,  /* 1110 -> RESERVED (13.0x) */
	-1,  /* 1111 -> RESERVED (12.0x) */
};

static const int ezrat_eblcr[32] = {
	50,  /* 0000 ->  5.0x */
	30,  /* 0001 ->  3.0x */
	40,  /* 0010 ->  4.0x */
	100, /* 0011 -> 10.0x */
	55,  /* 0100 ->  5.5x */
	35,  /* 0101 ->  3.5x */
	45,  /* 0110 ->  4.5x */
	95,  /* 0111 ->  9.5x */
	90,  /* 1000 ->  9.0x */
	70,  /* 1001 ->  7.0x */
	80,  /* 1010 ->  8.0x */
	60,  /* 1011 ->  6.0x */
	120, /* 1100 -> 12.0x */
	75,  /* 1101 ->  7.5x */
	85,  /* 1110 ->  8.5x */
	65,  /* 1111 ->  6.5x */

	-1,  /* 0000 -> RESERVED (9.0x) */
	110, /* 0001 -> 11.0x */
	120, /* 0010 -> 12.0x */
	-1,  /* 0011 -> RESERVED (10.0x)*/
	135, /* 0100 -> 13.5x */
	115, /* 0101 -> 11.5x */
	125, /* 0110 -> 12.5x */
	105, /* 0111 -> 10.5x */
	130, /* 1000 -> 13.0x */
	150, /* 1001 -> 15.0x */
	160, /* 1010 -> 16.0x */
	140, /* 1011 -> 14.0x */
	-1,  /* 1100 -> RESERVED (12.0x) */
	155, /* 1101 -> 15.5x */
	-1,  /* 1110 -> RESERVED (13.0x) */
	145, /* 1111 -> 14.5x */
};

/*
 * VIA C3 Nehemiah */

static const int nehemiah_mults[32] = {
	100, /* 0000 -> 10.0x */
	-1, /* 0001 -> 16.0x */
Commit	Line	Data
4f19048f	1	/* SPDX-License-Identifier: GPL-2.0-only */
1da177e4 LT	2	/*
	3	* longhaul.h
	4	* (C) 2003 Dave Jones.
	5	*
1da177e4 LT	6	* VIA-specific information
	7	*/
	8
	9	union msr_bcr2 {
	10	struct {
	11	unsigned Reseved:19, // 18:0
	12	ESOFTBF:1, // 19
	13	Reserved2:3, // 22:20
	14	CLOCKMUL:4, // 26:23
	15	Reserved3:5; // 31:27
	16	} bits;
	17	unsigned long val;
	18	};
	19
	20	union msr_longhaul {
	21	struct {
	22	unsigned RevisionID:4, // 3:0
	23	RevisionKey:4, // 7:4
	24	EnableSoftBusRatio:1, // 8
	25	EnableSoftVID:1, // 9
	26	EnableSoftBSEL:1, // 10
	27	Reserved:3, // 11:13
	28	SoftBusRatio4:1, // 14
	29	VRMRev:1, // 15
	30	SoftBusRatio:4, // 19:16
	31	SoftVID:5, // 24:20
	32	Reserved2:3, // 27:25
	33	SoftBSEL:2, // 29:28
	34	Reserved3:2, // 31:30
	35	MaxMHzBR:4, // 35:32
	36	MaximumVID:5, // 40:36
	37	MaxMHzFSB:2, // 42:41
	38	MaxMHzBR4:1, // 43
	39	Reserved4:4, // 47:44
	40	MinMHzBR:4, // 51:48
	41	MinimumVID:5, // 56:52
	42	MinMHzFSB:2, // 58:57
	43	MinMHzBR4:1, // 59
	44	Reserved5:4; // 63:60
	45	} bits;
	46	unsigned long long val;
	47	};
	48
	49	/*
	50	* Clock ratio tables. Div/Mod by 10 to get ratio.
ac617bd0 DJ	51	* The eblcr values specify the ratio read from the CPU.
ac617bd0 DJ	52	* The mults values specify what to write to the CPU.
1da177e4 LT	53	*/
	54
	55	/*
	56	* VIA C3 Samuel 1 & Samuel 2 (stepping 0)
	57	*/
2760984f	58	static const int samuel1_mults[16] = {
1da177e4 LT	59	-1, /* 0000 -> RESERVED */
	60	30, /* 0001 -> 3.0x */
	61	40, /* 0010 -> 4.0x */
	62	-1, /* 0011 -> RESERVED */
	63	-1, /* 0100 -> RESERVED */
	64	35, /* 0101 -> 3.5x */
	65	45, /* 0110 -> 4.5x */
	66	55, /* 0111 -> 5.5x */
	67	60, /* 1000 -> 6.0x */
	68	70, /* 1001 -> 7.0x */
	69	80, /* 1010 -> 8.0x */
	70	50, /* 1011 -> 5.0x */
	71	65, /* 1100 -> 6.5x */
	72	75, /* 1101 -> 7.5x */
	73	-1, /* 1110 -> RESERVED */
	74	-1, /* 1111 -> RESERVED */
	75	};
	76
2760984f	77	static const int samuel1_eblcr[16] = {
1da177e4 LT	78	50, /* 0000 -> RESERVED */
	79	30, /* 0001 -> 3.0x */
	80	40, /* 0010 -> 4.0x */
	81	-1, /* 0011 -> RESERVED */
	82	55, /* 0100 -> 5.5x */
	83	35, /* 0101 -> 3.5x */
	84	45, /* 0110 -> 4.5x */
	85	-1, /* 0111 -> RESERVED */
	86	-1, /* 1000 -> RESERVED */
	87	70, /* 1001 -> 7.0x */
	88	80, /* 1010 -> 8.0x */
	89	60, /* 1011 -> 6.0x */
	90	-1, /* 1100 -> RESERVED */
	91	75, /* 1101 -> 7.5x */
	92	-1, /* 1110 -> RESERVED */
	93	65, /* 1111 -> 6.5x */
	94	};
	95
	96	/*
	97	* VIA C3 Samuel2 Stepping 1->15
	98	*/
2760984f	99	static const int samuel2_eblcr[16] = {
1da177e4 LT	100	50, /* 0000 -> 5.0x */
	101	30, /* 0001 -> 3.0x */
	102	40, /* 0010 -> 4.0x */
	103	100, /* 0011 -> 10.0x */
	104	55, /* 0100 -> 5.5x */
	105	35, /* 0101 -> 3.5x */
	106	45, /* 0110 -> 4.5x */
	107	110, /* 0111 -> 11.0x */
	108	90, /* 1000 -> 9.0x */
	109	70, /* 1001 -> 7.0x */
	110	80, /* 1010 -> 8.0x */
	111	60, /* 1011 -> 6.0x */
	112	120, /* 1100 -> 12.0x */
	113	75, /* 1101 -> 7.5x */
	114	130, /* 1110 -> 13.0x */
	115	65, /* 1111 -> 6.5x */
	116	};
	117
	118	/*
	119	* VIA C3 Ezra
	120	*/
2760984f	121	static const int ezra_mults[16] = {
1da177e4 LT	122	100, /* 0000 -> 10.0x */
	123	30, /* 0001 -> 3.0x */
	124	40, /* 0010 -> 4.0x */
	125	90, /* 0011 -> 9.0x */
	126	95, /* 0100 -> 9.5x */
	127	35, /* 0101 -> 3.5x */
	128	45, /* 0110 -> 4.5x */
	129	55, /* 0111 -> 5.5x */
	130	60, /* 1000 -> 6.0x */
	131	70, /* 1001 -> 7.0x */
	132	80, /* 1010 -> 8.0x */
	133	50, /* 1011 -> 5.0x */
	134	65, /* 1100 -> 6.5x */
	135	75, /* 1101 -> 7.5x */
	136	85, /* 1110 -> 8.5x */
	137	120, /* 1111 -> 12.0x */
	138	};
	139
2760984f	140	static const int ezra_eblcr[16] = {
1da177e4 LT	141	50, /* 0000 -> 5.0x */
	142	30, /* 0001 -> 3.0x */
	143	40, /* 0010 -> 4.0x */
	144	100, /* 0011 -> 10.0x */
	145	55, /* 0100 -> 5.5x */
	146	35, /* 0101 -> 3.5x */
	147	45, /* 0110 -> 4.5x */
	148	95, /* 0111 -> 9.5x */
	149	90, /* 1000 -> 9.0x */
	150	70, /* 1001 -> 7.0x */
	151	80, /* 1010 -> 8.0x */
	152	60, /* 1011 -> 6.0x */
	153	120, /* 1100 -> 12.0x */
	154	75, /* 1101 -> 7.5x */
	155	85, /* 1110 -> 8.5x */
	156	65, /* 1111 -> 6.5x */
	157	};
	158
	159	/*
	160	* VIA C3 (Ezra-T) [C5M].
	161	*/
2760984f	162	static const int ezrat_mults[32] = {
1da177e4 LT	163	100, /* 0000 -> 10.0x */
	164	30, /* 0001 -> 3.0x */
	165	40, /* 0010 -> 4.0x */
	166	90, /* 0011 -> 9.0x */
	167	95, /* 0100 -> 9.5x */
	168	35, /* 0101 -> 3.5x */
	169	45, /* 0110 -> 4.5x */
	170	55, /* 0111 -> 5.5x */
	171	60, /* 1000 -> 6.0x */
	172	70, /* 1001 -> 7.0x */
	173	80, /* 1010 -> 8.0x */
	174	50, /* 1011 -> 5.0x */
	175	65, /* 1100 -> 6.5x */
	176	75, /* 1101 -> 7.5x */
	177	85, /* 1110 -> 8.5x */
	178	120, /* 1111 -> 12.0x */
	179
	180	-1, /* 0000 -> RESERVED (10.0x) */
	181	110, /* 0001 -> 11.0x */
ce243823	182	-1, /* 0010 -> 12.0x */
1da177e4 LT	183	-1, /* 0011 -> RESERVED (9.0x)*/
	184	105, /* 0100 -> 10.5x */
	185	115, /* 0101 -> 11.5x */
	186	125, /* 0110 -> 12.5x */
	187	135, /* 0111 -> 13.5x */
	188	140, /* 1000 -> 14.0x */
	189	150, /* 1001 -> 15.0x */
	190	160, /* 1010 -> 16.0x */
	191	130, /* 1011 -> 13.0x */
	192	145, /* 1100 -> 14.5x */
	193	155, /* 1101 -> 15.5x */
	194	-1, /* 1110 -> RESERVED (13.0x) */
	195	-1, /* 1111 -> RESERVED (12.0x) */
	196	};
	197
2760984f	198	static const int ezrat_eblcr[32] = {
1da177e4 LT	199	50, /* 0000 -> 5.0x */
	200	30, /* 0001 -> 3.0x */
	201	40, /* 0010 -> 4.0x */
	202	100, /* 0011 -> 10.0x */
	203	55, /* 0100 -> 5.5x */
	204	35, /* 0101 -> 3.5x */
	205	45, /* 0110 -> 4.5x */
	206	95, /* 0111 -> 9.5x */
	207	90, /* 1000 -> 9.0x */
	208	70, /* 1001 -> 7.0x */
	209	80, /* 1010 -> 8.0x */
	210	60, /* 1011 -> 6.0x */
	211	120, /* 1100 -> 12.0x */
	212	75, /* 1101 -> 7.5x */
	213	85, /* 1110 -> 8.5x */
	214	65, /* 1111 -> 6.5x */
	215
	216	-1, /* 0000 -> RESERVED (9.0x) */
	217	110, /* 0001 -> 11.0x */
	218	120, /* 0010 -> 12.0x */
	219	-1, /* 0011 -> RESERVED (10.0x)*/
	220	135, /* 0100 -> 13.5x */
	221	115, /* 0101 -> 11.5x */
	222	125, /* 0110 -> 12.5x */
	223	105, /* 0111 -> 10.5x */
	224	130, /* 1000 -> 13.0x */
	225	150, /* 1001 -> 15.0x */
	226	160, /* 1010 -> 16.0x */
	227	140, /* 1011 -> 14.0x */
	228	-1, /* 1100 -> RESERVED (12.0x) */
	229	155, /* 1101 -> 15.5x */
	230	-1, /* 1110 -> RESERVED (13.0x) */
	231	145, /* 1111 -> 14.5x */
	232	};
	233
	234	/*
	235	* VIA C3 Nehemiah */
32ee8c3e	236
2760984f	237	static const int nehemiah_mults[32] = {
1da177e4	238	100, /* 0000 -> 10.0x */
ce243823	239	-1, /* 0001 -> 16.0x */