Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/microblaze/include/asm/cpuinfo.h
26439 views
1
/* SPDX-License-Identifier: GPL-2.0 */

2
/*

3
 * Generic support for queying CPU info

4
 *

5
 * Copyright (C) 2007-2009 Michal Simek <[email protected]>

6
 * Copyright (C) 2007-2009 PetaLogix

7
 * Copyright (C) 2007 John Williams <[email protected]>

8
 */

9


10
#ifndef _ASM_MICROBLAZE_CPUINFO_H

11
#define _ASM_MICROBLAZE_CPUINFO_H

12


13
#include <linux/of.h>

14


15
/* CPU Version and FPGA Family code conversion table type */

16
struct cpu_ver_key {

17
	const char *s;

18
	const unsigned k;

19
};

20


21
extern const struct cpu_ver_key cpu_ver_lookup[];

22


23
struct family_string_key {

24
	const char *s;

25
	const unsigned k;

26
};

27


28
extern const struct family_string_key family_string_lookup[];

29


30
struct cpuinfo {

31
	/* Core CPU configuration */

32
	u32 use_instr;

33
	u32 use_mult;

34
	u32 use_fpu;

35
	u32 use_exc;

36
	u32 ver_code;

37
	u32 mmu;

38
	u32 mmu_privins;

39
	u32 endian;

40


41
	/* CPU caches */

42
	u32 use_icache;

43
	u32 icache_tagbits;

44
	u32 icache_write;

45
	u32 icache_line_length;

46
	u32 icache_size;

47
	unsigned long icache_base;

48
	unsigned long icache_high;

49


50
	u32 use_dcache;

51
	u32 dcache_tagbits;

52
	u32 dcache_write;

53
	u32 dcache_line_length;

54
	u32 dcache_size;

55
	u32 dcache_wb;

56
	unsigned long dcache_base;

57
	unsigned long dcache_high;

58


59
	/* Bus connections */

60
	u32 use_dopb;

61
	u32 use_iopb;

62
	u32 use_dlmb;

63
	u32 use_ilmb;

64
	u32 num_fsl;

65


66
	/* CPU interrupt line info */

67
	u32 irq_edge;

68
	u32 irq_positive;

69


70
	u32 area_optimised;

71


72
	/* HW debug support */

73
	u32 hw_debug;

74
	u32 num_pc_brk;

75
	u32 num_rd_brk;

76
	u32 num_wr_brk;

77
	u32 cpu_clock_freq; /* store real freq of cpu */

78


79
	/* FPGA family */

80
	u32 fpga_family_code;

81


82
	/* User define */

83
	u32 pvr_user1;

84
	u32 pvr_user2;

85
};

86


87
extern struct cpuinfo cpuinfo;

88


89
/* fwd declarations of the various CPUinfo populators */

90
void setup_cpuinfo(void);

91
void setup_cpuinfo_clk(void);

92


93
void set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu);

94
void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu);

95


96
static inline unsigned int fcpu(struct device_node *cpu, char *n)

97
{

98
	u32 val = 0;

99


100
	of_property_read_u32(cpu, n, &val);

101


102
	return val;

103
}

104


105
#endif /* _ASM_MICROBLAZE_CPUINFO_H */

106


107