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authorIngo Molnar <mingo@elte.hu>2008-07-29 11:54:24 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-29 11:54:24 +0200
commit3825c9e8d01e4310c40a3903a354c433c32a7b6f (patch)
tree87c94a8076bbb38bd2cf20ab9bc23d6f74f6a0a8 /arch/sparc/include/asm/psrcompat.h
parent5d7b605245b1aa1a9cd6549b1f57d69273eb0c37 (diff)
parent6e86841d05f371b5b9b86ce76c02aaee83352298 (diff)
Merge commit 'v2.6.27-rc1' into x86/microcode
Conflicts: arch/x86/kernel/microcode.c Manual resolutions: arch/x86/kernel/microcode_amd.c arch/x86/kernel/microcode_intel.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sparc/include/asm/psrcompat.h')
-rw-r--r--arch/sparc/include/asm/psrcompat.h45
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 000000000000..44b6327dbbf5
--- /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) */