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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/c6x/include/asm/special_insns.h | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/c6x/include/asm/special_insns.h')
-rw-r--r-- | arch/c6x/include/asm/special_insns.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/c6x/include/asm/special_insns.h b/arch/c6x/include/asm/special_insns.h new file mode 100644 index 00000000..59672bca --- /dev/null +++ b/arch/c6x/include/asm/special_insns.h @@ -0,0 +1,63 @@ +/* + * Port on Texas Instruments TMS320C6x architecture + * + * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated + * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef _ASM_C6X_SPECIAL_INSNS_H +#define _ASM_C6X_SPECIAL_INSNS_H + + +#define get_creg(reg) \ + ({ unsigned int __x; \ + asm volatile ("mvc .s2 " #reg ",%0\n" : "=b"(__x)); __x; }) + +#define set_creg(reg, v) \ + do { unsigned int __x = (unsigned int)(v); \ + asm volatile ("mvc .s2 %0," #reg "\n" : : "b"(__x)); \ + } while (0) + +#define or_creg(reg, n) \ + do { unsigned __x, __n = (unsigned)(n); \ + asm volatile ("mvc .s2 " #reg ",%0\n" \ + "or .l2 %1,%0,%0\n" \ + "mvc .s2 %0," #reg "\n" \ + "nop\n" \ + : "=&b"(__x) : "b"(__n)); \ + } while (0) + +#define and_creg(reg, n) \ + do { unsigned __x, __n = (unsigned)(n); \ + asm volatile ("mvc .s2 " #reg ",%0\n" \ + "and .l2 %1,%0,%0\n" \ + "mvc .s2 %0," #reg "\n" \ + "nop\n" \ + : "=&b"(__x) : "b"(__n)); \ + } while (0) + +#define get_coreid() (get_creg(DNUM) & 0xff) + +/* Set/get IST */ +#define set_ist(x) set_creg(ISTP, x) +#define get_ist() get_creg(ISTP) + +/* + * Exception management + */ +#define disable_exception() +#define get_except_type() get_creg(EFR) +#define ack_exception(type) set_creg(ECR, 1 << (type)) +#define get_iexcept() get_creg(IERR) +#define set_iexcept(mask) set_creg(IERR, (mask)) + +#define _extu(x, s, e) \ + ({ unsigned int __x; \ + asm volatile ("extu .S2 %3,%1,%2,%0\n" : \ + "=b"(__x) : "n"(s), "n"(e), "b"(x)); \ + __x; }) + +#endif /* _ASM_C6X_SPECIAL_INSNS_H */ |