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sparc: Use popc if possible for hweight routines.

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Just like powerpc, we code patch at boot time.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2011-07-29 09:42:07 -07:00
parent e95ade0839
commit ef7c4d4675
7 changed files with 102 additions and 40 deletions
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7
arch/sparc/kernel/entry.h
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@ -42,6 +42,13 @@ extern void fpsave(unsigned long *fpregs, unsigned long *fsr,
extern void fpload(unsigned long *fpregs, unsigned long *fsr);
#else /* CONFIG_SPARC32 */
struct popc_3insn_patch_entry {
unsigned int addr;
unsigned int insns[3];
};
extern struct popc_3insn_patch_entry __popc_3insn_patch,
__popc_3insn_patch_end;
extern void __init per_cpu_patch(void);
extern void __init sun4v_patch(void);
extern void __init boot_cpu_id_too_large(int cpu);