tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Common header file for blackfin family of processors.
3 *
4 */
5
6#ifndef _BLACKFIN_H_
7#define _BLACKFIN_H_
8
9#define LO(con32) ((con32) & 0xFFFF)
10#define lo(con32) ((con32) & 0xFFFF)
11#define HI(con32) (((con32) >> 16) & 0xFFFF)
12#define hi(con32) (((con32) >> 16) & 0xFFFF)
13
14#include <asm/mach/anomaly.h>
15
16#ifndef __ASSEMBLY__
17
18/* SSYNC implementation for C file */
19static inline void SSYNC(void)
20{
21 int _tmp;
22 if (ANOMALY_05000312)
23 __asm__ __volatile__(
24 "cli %0;"
25 "nop;"
26 "nop;"
27 "ssync;"
28 "sti %0;"
29 : "=d" (_tmp)
30 );
31 else if (ANOMALY_05000244)
32 __asm__ __volatile__(
33 "nop;"
34 "nop;"
35 "nop;"
36 "ssync;"
37 );
38 else
39 __asm__ __volatile__("ssync;");
40}
41
42/* CSYNC implementation for C file */
43static inline void CSYNC(void)
44{
45 int _tmp;
46 if (ANOMALY_05000312)
47 __asm__ __volatile__(
48 "cli %0;"
49 "nop;"
50 "nop;"
51 "csync;"
52 "sti %0;"
53 : "=d" (_tmp)
54 );
55 else if (ANOMALY_05000244)
56 __asm__ __volatile__(
57 "nop;"
58 "nop;"
59 "nop;"
60 "csync;"
61 );
62 else
63 __asm__ __volatile__("csync;");
64}
65
66#else /* __ASSEMBLY__ */
67
68/* SSYNC & CSYNC implementations for assembly files */
69
70#define ssync(x) SSYNC(x)
71#define csync(x) CSYNC(x)
72
73#if ANOMALY_05000312
74#define SSYNC(scratch) cli scratch; nop; nop; SSYNC; sti scratch;
75#define CSYNC(scratch) cli scratch; nop; nop; CSYNC; sti scratch;
76
77#elif ANOMALY_05000244
78#define SSYNC(scratch) nop; nop; nop; SSYNC;
79#define CSYNC(scratch) nop; nop; nop; CSYNC;
80
81#else
82#define SSYNC(scratch) SSYNC;
83#define CSYNC(scratch) CSYNC;
84
85#endif /* ANOMALY_05000312 & ANOMALY_05000244 handling */
86
87#endif /* __ASSEMBLY__ */
88
89#include <asm/mach/blackfin.h>
90#include <asm/bfin-global.h>
91
92#endif /* _BLACKFIN_H_ */