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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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788e6af37a
sys_cacheflush should return with EINVAL if the cache parameter is not one of ICACHE, DCACHE or BCACHE. So, we need to include 0 in the first check. It also adds the three definitions above as wrapper of the existent macros. PS: ltp cacheflush01 test now passes. Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
20 lines
585 B
C
20 lines
585 B
C
#ifndef _SH_CACHECTL_H
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#define _SH_CACHECTL_H
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/* Definitions for the cacheflush system call. */
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#define CACHEFLUSH_D_INVAL 0x1 /* invalidate (without write back) */
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#define CACHEFLUSH_D_WB 0x2 /* write back (without invalidate) */
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#define CACHEFLUSH_D_PURGE 0x3 /* writeback and invalidate */
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#define CACHEFLUSH_I 0x4
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/*
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* Options for cacheflush system call
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*/
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#define ICACHE CACHEFLUSH_I /* flush instruction cache */
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#define DCACHE CACHEFLUSH_D_PURGE /* writeback and flush data cache */
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#define BCACHE (ICACHE|DCACHE) /* flush both caches */
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#endif /* _SH_CACHECTL_H */
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