Merge remote-tracking branch 'lsk/v3.10/topic/of' into linux-linaro-lsk
[firefly-linux-kernel-4.4.55.git] / include / linux / compiler-intel.h
1 #ifndef __LINUX_COMPILER_H
2 #error "Please don't include <linux/compiler-intel.h> directly, include <linux/compiler.h> instead."
3 #endif
4
5 #ifdef __ECC
6
7 /* Some compiler specific definitions are overwritten here
8  * for Intel ECC compiler
9  */
10
11 #include <asm/intrinsics.h>
12
13 /* Intel ECC compiler doesn't support gcc specific asm stmts.
14  * It uses intrinsics to do the equivalent things.
15  */
16 #undef barrier
17 #undef RELOC_HIDE
18 #undef OPTIMIZER_HIDE_VAR
19
20 #define barrier() __memory_barrier()
21
22 #define RELOC_HIDE(ptr, off)                                    \
23   ({ unsigned long __ptr;                                       \
24      __ptr = (unsigned long) (ptr);                             \
25     (typeof(ptr)) (__ptr + (off)); })
26
27 /* This should act as an optimization barrier on var.
28  * Given that this compiler does not have inline assembly, a compiler barrier
29  * is the best we can do.
30  */
31 #define OPTIMIZER_HIDE_VAR(var) barrier()
32
33 /* Intel ECC compiler doesn't support __builtin_types_compatible_p() */
34 #define __must_be_array(a) 0
35
36 #endif
37
38 #ifndef __HAVE_BUILTIN_BSWAP16__
39 /* icc has this, but it's called _bswap16 */
40 #define __HAVE_BUILTIN_BSWAP16__
41 #define __builtin_bswap16 _bswap16
42 #endif
43