Release 4.14 arch/x86/mm/pat_internal.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __PAT_INTERNAL_H_

#define __PAT_INTERNAL_H_

extern int pat_debug_enable;


#define dprintk(fmt, arg...) \
	do { if (pat_debug_enable) pr_info("x86/PAT: " fmt, ##arg); } while (0)


struct memtype {
	
u64			start;
	
u64			end;
	
u64			subtree_max_end;
	
enum page_cache_mode	type;
	
struct rb_node		rb;
};



static inline char *cattr_name(enum page_cache_mode pcm)
{
	switch (pcm) {
	case _PAGE_CACHE_MODE_UC:		return "uncached";
	case _PAGE_CACHE_MODE_UC_MINUS:		return "uncached-minus";
	case _PAGE_CACHE_MODE_WB:		return "write-back";
	case _PAGE_CACHE_MODE_WC:		return "write-combining";
	case _PAGE_CACHE_MODE_WT:		return "write-through";
	case _PAGE_CACHE_MODE_WP:		return "write-protected";
	default:				return "broken";
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Venkatesh Pallipadi
38
65.52%
1
50.00%
Juergen Gross
20
34.48%
1
50.00%
Total
58
100.00%
2
100.00%

#ifdef CONFIG_X86_PAT
extern int rbt_memtype_check_insert(struct memtype *new,
					enum page_cache_mode *new_type);
extern struct memtype *rbt_memtype_erase(u64 start, u64 end);
extern struct memtype *rbt_memtype_lookup(u64 addr);
extern int rbt_memtype_copy_nth_element(struct memtype *out, loff_t pos);
#else


static inline int rbt_memtype_check_insert(struct memtype *new,
					enum page_cache_mode *new_type)
{ return 0; }
Contributors
Person
Tokens
Prop
Commits
CommitProp
Venkatesh Pallipadi
18
90.00%
1
50.00%
Juergen Gross
2
10.00%
1
50.00%
Total
20
100.00%
2
100.00%



static inline struct memtype *rbt_memtype_erase(u64 start, u64 end)
{ return NULL; }
Contributors
Person
Tokens
Prop
Commits
CommitProp
Venkatesh Pallipadi
14
77.78%
1
50.00%
Xiaotian Feng
4
22.22%
1
50.00%
Total
18
100.00%
2
100.00%



static inline struct memtype *rbt_memtype_lookup(u64 addr)
{ return NULL; }
Contributors
Person
Tokens
Prop
Commits
CommitProp
Venkatesh Pallipadi
15
100.00%
1
100.00%
Total
15
100.00%
1
100.00%



static inline int rbt_memtype_copy_nth_element(struct memtype *out, loff_t pos)
{ return 0; }
Contributors
Person
Tokens
Prop
Commits
CommitProp
Venkatesh Pallipadi
18
100.00%
1
100.00%
Total
18
100.00%
1
100.00%

#endif

#endif /* __PAT_INTERNAL_H_ */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Venkatesh Pallipadi
199
85.04%
2
33.33%
Juergen Gross
26
11.11%
1
16.67%
Xiaotian Feng
7
2.99%
1
16.67%
Greg Kroah-Hartman
1
0.43%
1
16.67%
Luis R. Rodriguez
1
0.43%
1
16.67%
Total
234
100.00%
6
100.00%
Directory: arch/x86/mm

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.