Linux Kernel  3.7.1
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cplbinit.h
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1 /*
2  * Common CPLB definitions for CPLB init
3  *
4  * Copyright 2006-2008 Analog Devices Inc.
5  *
6  * Licensed under the GPL-2 or later.
7  */
8 
9 #ifndef __ASM_CPLBINIT_H__
10 #define __ASM_CPLBINIT_H__
11 
12 #include <asm/blackfin.h>
13 #include <asm/cplb.h>
14 #include <linux/threads.h>
15 
16 #ifdef CONFIG_CPLB_SWITCH_TAB_L1
17 # define PDT_ATTR __attribute__((l1_data))
18 #else
19 # define PDT_ATTR
20 #endif
21 
22 struct cplb_entry {
23  unsigned long data, addr;
24 };
25 
26 struct cplb_boundary {
27  unsigned long eaddr; /* End of this region. */
28  unsigned long data; /* CPLB data value. */
29 };
30 
31 extern struct cplb_boundary dcplb_bounds[];
32 extern struct cplb_boundary icplb_bounds[];
34 
35 extern struct cplb_entry dcplb_tbl[NR_CPUS][MAX_CPLBS];
36 extern struct cplb_entry icplb_tbl[NR_CPUS][MAX_CPLBS];
37 extern int first_switched_icplb;
38 extern int first_switched_dcplb;
39 
41 extern int nr_dcplb_prot[], nr_cplb_flush[];
42 
43 #ifdef CONFIG_MPU
44 
45 extern int first_mask_dcplb;
46 
47 extern int page_mask_order;
48 extern int page_mask_nelts;
49 
50 extern unsigned long *current_rwx_mask[NR_CPUS];
51 
52 extern void flush_switched_cplbs(unsigned int);
53 extern void set_mask_dcplbs(unsigned long *, unsigned int);
54 
55 extern void __noreturn panic_cplb_error(int seqstat, struct pt_regs *);
56 
57 #endif /* CONFIG_MPU */
58 
59 extern void bfin_icache_init(struct cplb_entry *icplb_tbl);
60 extern void bfin_dcache_init(struct cplb_entry *icplb_tbl);
61 
62 #if defined(CONFIG_BFIN_DCACHE) || defined(CONFIG_BFIN_ICACHE)
63 extern void generate_cplb_tables_all(void);
64 extern void generate_cplb_tables_cpu(unsigned int cpu);
65 #endif
66 #endif