blob: 2791938ced20e81d3e88d70acd5304d311e9b33e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2014 Google Inc.
*
* 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; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc.
*/
#ifndef _BROADWELL_CPU_H_
#define _BROADWELL_CPU_H_
#include <arch/cpu.h>
#include <device/device.h>
/* CPU types */
#define HASWELL_FAMILY_ULT 0x40650
#define BROADWELL_FAMILY_ULT 0x306d0
/* Supported CPUIDs */
#define CPUID_HASWELL_A0 0x306c1
#define CPUID_HASWELL_B0 0x306c2
#define CPUID_HASWELL_C0 0x306c3
#define CPUID_HASWELL_ULT_B0 0x40650
#define CPUID_HASWELL_ULT 0x40651
#define CPUID_HASWELL_HALO 0x40661
#define CPUID_BROADWELL_C0 0x306d2
#define CPUID_BROADWELL_D0 0x306d3
#define CPUID_BROADWELL_E0 0x306d4
/* CPU bus clock is fixed at 100MHz */
#define CPU_BCLK 100
/* Latency times in units of 1024ns. */
#define C_STATE_LATENCY_CONTROL_0_LIMIT 0x42
#define C_STATE_LATENCY_CONTROL_1_LIMIT 0x73
#define C_STATE_LATENCY_CONTROL_2_LIMIT 0x91
#define C_STATE_LATENCY_CONTROL_3_LIMIT 0xe4
#define C_STATE_LATENCY_CONTROL_4_LIMIT 0x145
#define C_STATE_LATENCY_CONTROL_5_LIMIT 0x1ef
#define C_STATE_LATENCY_MICRO_SECONDS(limit, base) \
(((1 << ((base)*5)) * (limit)) / 1000)
#define C_STATE_LATENCY_FROM_LAT_REG(reg) \
C_STATE_LATENCY_MICRO_SECONDS(C_STATE_LATENCY_CONTROL_ ##reg## _LIMIT, \
(IRTL_1024_NS >> 10))
/* Configure power limits for turbo mode */
void set_power_limits(u8 power_limit_1_time);
int cpu_config_tdp_levels(void);
/*
* Determine if HyperThreading is disabled.
* The variable is not valid until setup_ap_init() has been called.
*/
extern int ht_disabled;
/* CPU identification */
u32 cpu_family_model(void);
u32 cpu_stepping(void);
int cpu_is_ult(void);
#endif
|
