blob: a1ef0109d2b4a94396eb91a834d91c5d01a799f9 (
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
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
|
/*
*
* (C) COPYRIGHT ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the
* GNU General Public License version 2 as published by the Free Software
* Foundation, and any use by you of this program is subject to the terms
* of such GNU licence.
*
* A copy of the licence is included with the program, and can also be obtained
* from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
/**
* @file mali_kbase_cpuprops.c
* Base kernel property query APIs
*/
#include "mali_kbase.h"
#ifdef BASE_LEGACY_UK7_SUPPORT
#include "mali_kbase_cpuprops.h"
#include "mali_kbase_uku.h"
#include <mali_kbase_config.h>
#include <linux/cache.h>
#include <linux/cpufreq.h>
#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
#include <asm/cputype.h>
#endif
#define KBASE_DEFAULT_CPU_NUM 0
#define L1_DCACHE_LINE_SIZE_LOG2 L1_CACHE_SHIFT
/**
* @brief Macros used to extract cpu id info
* @see Doc's for Main ID register
*/
#define KBASE_CPUPROPS_ID_GET_REV(cpuid) ((cpuid) & 0x0F) /* [3:0] Revision */
#define KBASE_CPUPROPS_ID_GET_PART_NR(cpuid)(((cpuid) >> 4) & 0xFFF) /* [15:4] Part number */
#define KBASE_CPUPROPS_ID_GET_ARCH(cpuid) (((cpuid) >> 16) & 0x0F) /* [19:16] Architecture */
#define KBASE_CPUPROPS_ID_GET_VARIANT(cpuid)(((cpuid) >> 20) & 0x0F) /* [23:20] Variant */
#define KBASE_CPUPROPS_ID_GET_CODE(cpuid) (((cpuid) >> 24) & 0xFF) /* [31:23] ASCII code of implementer trademark */
/*Below value sourced from OSK*/
#define L1_DCACHE_SIZE ((u32)0x00008000)
/**
* @brief Retrieves detailed CPU info from given cpu_val ( ID reg )
*
* @param kbase_props CPU props to be filled-in with cpu id info
*
*/
#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
static void kbasep_cpuprops_uk_get_cpu_id_info(struct kbase_uk_cpuprops * const kbase_props)
{
kbase_props->props.cpu_id.id = read_cpuid_id();
kbase_props->props.cpu_id.valid = 1;
kbase_props->props.cpu_id.rev = KBASE_CPUPROPS_ID_GET_REV(kbase_props->props.cpu_id.id);
kbase_props->props.cpu_id.part = KBASE_CPUPROPS_ID_GET_PART_NR(kbase_props->props.cpu_id.id);
kbase_props->props.cpu_id.arch = KBASE_CPUPROPS_ID_GET_ARCH(kbase_props->props.cpu_id.id);
kbase_props->props.cpu_id.variant = KBASE_CPUPROPS_ID_GET_VARIANT(kbase_props->props.cpu_id.id);
kbase_props->props.cpu_id.implementer = KBASE_CPUPROPS_ID_GET_CODE(kbase_props->props.cpu_id.id);
}
#else
static void kbasep_cpuprops_uk_get_cpu_id_info(struct kbase_uk_cpuprops * const kbase_props)
{
kbase_props->props.cpu_id.id = 0;
kbase_props->props.cpu_id.valid = 0;
kbase_props->props.cpu_id.rev = 0;
kbase_props->props.cpu_id.part = 0;
kbase_props->props.cpu_id.arch = 0;
kbase_props->props.cpu_id.variant = 0;
kbase_props->props.cpu_id.implementer = 'N';
}
#endif
/**
* This function (and file!) is kept for the backward compatibility reasons.
* It shall be removed as soon as KBASE_FUNC_CPU_PROPS_REG_DUMP_OBSOLETE
* (previously KBASE_FUNC_CPU_PROPS_REG_DUMP) ioctl call
* is removed. Removal of KBASE_FUNC_CPU_PROPS_REG_DUMP is part of having
* the function for reading cpu properties moved from base to osu.
*/
mali_error kbase_cpuprops_uk_get_props(struct kbase_context *kctx, struct kbase_uk_cpuprops * const kbase_props)
{
unsigned int max_cpu_freq;
kbase_props->props.cpu_l1_dcache_line_size_log2 = L1_DCACHE_LINE_SIZE_LOG2;
kbase_props->props.cpu_l1_dcache_size = L1_DCACHE_SIZE;
kbase_props->props.cpu_flags = BASE_CPU_PROPERTY_FLAG_LITTLE_ENDIAN;
kbase_props->props.nr_cores = NR_CPUS;
kbase_props->props.cpu_page_size_log2 = PAGE_SHIFT;
kbase_props->props.available_memory_size = totalram_pages << PAGE_SHIFT;
kbasep_cpuprops_uk_get_cpu_id_info(kbase_props);
/* check if kernel supports dynamic frequency scaling */
max_cpu_freq = cpufreq_quick_get_max(KBASE_DEFAULT_CPU_NUM);
if (max_cpu_freq != 0) {
/* convert from kHz to mHz */
kbase_props->props.max_cpu_clock_speed_mhz = max_cpu_freq / 1000;
} else {
/* fallback if CONFIG_CPU_FREQ turned off */
int result;
kbase_cpuprops_clock_speed_function kbase_cpuprops_uk_get_clock_speed;
kbase_cpuprops_uk_get_clock_speed = (kbase_cpuprops_clock_speed_function) kbasep_get_config_value(kctx->kbdev, kctx->kbdev->config_attributes, KBASE_CONFIG_ATTR_CPU_SPEED_FUNC);
result = kbase_cpuprops_uk_get_clock_speed(&kbase_props->props.max_cpu_clock_speed_mhz);
if (result != 0)
return MALI_ERROR_FUNCTION_FAILED;
}
return MALI_ERROR_NONE;
}
#endif /* BASE_LEGACY_UK7_SUPPORT */
|
