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[SPARC64]: Sanitize %pstate writes for sun4v.

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If we're just switching between different alternate global
sets, nop it out on sun4v.  Also, get rid of all of the
alternate global save/restore in the OBP CIF trampoline code.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2006-02-05 22:27:28 -08:00
parent 314981ac71
commit 45fec05f80
7 changed files with 88 additions and 206 deletions
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6
include/asm-sparc64/cpudata.h
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@ -78,6 +78,12 @@ struct gl_1insn_patch_entry {
unsigned int insn;
};
extern struct gl_1insn_patch_entry __gl_1insn_patch, __gl_1insn_patch_end;
struct gl_2insn_patch_entry {
unsigned int addr;
unsigned int insns[2];
};
extern struct gl_2insn_patch_entry __gl_2insn_patch, __gl_2insn_patch_end;
#endif /* !(__ASSEMBLY__) */
#define TRAP_PER_CPU_THREAD 0x00