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author | Sam Ravnborg <sam@ravnborg.org> | 2008-07-27 21:00:59 (GMT) |
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committer | Sam Ravnborg <sam@ravnborg.org> | 2008-07-27 21:00:59 (GMT) |
commit | a439fe51a1f8eb087c22dd24d69cebae4a3addac (patch) | |
tree | e32d1fa97a220ab598d8ab364205817c5bf2bd6f /arch/sparc/include/asm/psrcompat.h | |
parent | 837b41b5de356aa67abb2cadb5eef3efc7776f91 (diff) | |
download | linux-fsl-qoriq-a439fe51a1f8eb087c22dd24d69cebae4a3addac.tar.xz |
sparc, sparc64: use arch/sparc/include
The majority of this patch was created by the following script:
***
ASM=arch/sparc/include/asm
mkdir -p $ASM
git mv include/asm-sparc64/ftrace.h $ASM
git rm include/asm-sparc64/*
git mv include/asm-sparc/* $ASM
sed -ie 's/asm-sparc64/asm/g' $ASM/*
sed -ie 's/asm-sparc/asm/g' $ASM/*
***
The rest was an update of the top-level Makefile to use sparc
for header files when sparc64 is being build.
And a small fixlet to pick up the correct unistd.h from
sparc64 code.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'arch/sparc/include/asm/psrcompat.h')
-rw-r--r-- | arch/sparc/include/asm/psrcompat.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/psrcompat.h b/arch/sparc/include/asm/psrcompat.h new file mode 100644 index 0000000..44b6327 --- /dev/null +++ b/arch/sparc/include/asm/psrcompat.h @@ -0,0 +1,45 @@ +#ifndef _SPARC64_PSRCOMPAT_H +#define _SPARC64_PSRCOMPAT_H + +#include <asm/pstate.h> + +/* Old 32-bit PSR fields for the compatibility conversion code. */ +#define PSR_CWP 0x0000001f /* current window pointer */ +#define PSR_ET 0x00000020 /* enable traps field */ +#define PSR_PS 0x00000040 /* previous privilege level */ +#define PSR_S 0x00000080 /* current privilege level */ +#define PSR_PIL 0x00000f00 /* processor interrupt level */ +#define PSR_EF 0x00001000 /* enable floating point */ +#define PSR_EC 0x00002000 /* enable co-processor */ +#define PSR_SYSCALL 0x00004000 /* inside of a syscall */ +#define PSR_LE 0x00008000 /* SuperSparcII little-endian */ +#define PSR_ICC 0x00f00000 /* integer condition codes */ +#define PSR_C 0x00100000 /* carry bit */ +#define PSR_V 0x00200000 /* overflow bit */ +#define PSR_Z 0x00400000 /* zero bit */ +#define PSR_N 0x00800000 /* negative bit */ +#define PSR_VERS 0x0f000000 /* cpu-version field */ +#define PSR_IMPL 0xf0000000 /* cpu-implementation field */ + +#define PSR_V8PLUS 0xff000000 /* fake impl/ver, meaning a 64bit CPU is present */ +#define PSR_XCC 0x000f0000 /* if PSR_V8PLUS, this is %xcc */ + +static inline unsigned int tstate_to_psr(unsigned long tstate) +{ + return ((tstate & TSTATE_CWP) | + PSR_S | + ((tstate & TSTATE_ICC) >> 12) | + ((tstate & TSTATE_XCC) >> 20) | + ((tstate & TSTATE_SYSCALL) ? PSR_SYSCALL : 0) | + PSR_V8PLUS); +} + +static inline unsigned long psr_to_tstate_icc(unsigned int psr) +{ + unsigned long tstate = ((unsigned long)(psr & PSR_ICC)) << 12; + if ((psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS) + tstate |= ((unsigned long)(psr & PSR_XCC)) << 20; + return tstate; +} + +#endif /* !(_SPARC64_PSRCOMPAT_H) */ |