cd01204b82
This adds in the L1I/L1D/L2 cache shape support to their respective entries in the ELF auxvt, based on the Alpha implementation. We use this on the userspace libc side for calculating a tightly packed SHMLBA amongst other things. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
31 lines
801 B
C
31 lines
801 B
C
#ifndef __ASM_SH_AUXVEC_H
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#define __ASM_SH_AUXVEC_H
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/*
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* Architecture-neutral AT_ values in 0-17, leave some room
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* for more of them.
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*/
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#ifdef CONFIG_VSYSCALL
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/*
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* Only define this in the vsyscall case, the entry point to
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* the vsyscall page gets placed here. The kernel will attempt
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* to build a gate VMA we don't care about otherwise..
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*/
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#define AT_SYSINFO_EHDR 33
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#endif
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/*
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* More complete cache descriptions than AT_[DIU]CACHEBSIZE. If the
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* value is -1, then the cache doesn't exist. Otherwise:
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*
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* bit 0-3: Cache set-associativity; 0 means fully associative.
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* bit 4-7: Log2 of cacheline size.
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* bit 8-31: Size of the entire cache >> 8.
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*/
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#define AT_L1I_CACHESHAPE 34
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#define AT_L1D_CACHESHAPE 35
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#define AT_L2_CACHESHAPE 36
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#endif /* __ASM_SH_AUXVEC_H */
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