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Retrieve the cache parms in the proper arch-specific way.

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Submitted by:	Michal Meloun <meloun@miracle.cz>
This commit is contained in:
ian 2015-05-15 18:07:58 +00:00
parent b4dd94dc42
commit fc794c706b
1 changed files with 11 additions and 2 deletions
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13
sys/arm/arm/cpuinfo.c
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@ -131,8 +131,17 @@ cpuinfo_init(void)
cpuinfo.security_ext = (cpuinfo.id_pfr1 >> 4) & 0xF;
/* L1 Cache sizes */
cpuinfo.dcache_line_size = 1 << (CPU_CT_DMINLINE(cpuinfo.ctr ) + 2);
if (CPU_CT_FORMAT(cpuinfo.ctr) == CPU_CT_ARMV7) {
cpuinfo.dcache_line_size =
1 << (CPU_CT_DMINLINE(cpuinfo.ctr) + 2);
cpuinfo.icache_line_size =
1 << (CPU_CT_IMINLINE(cpuinfo.ctr) + 2);
} else {
cpuinfo.dcache_line_size =
1 << (CPU_CT_xSIZE_LEN(CPU_CT_DSIZE(cpuinfo.ctr)) + 3);
cpuinfo.icache_line_size =
1 << (CPU_CT_xSIZE_LEN(CPU_CT_ISIZE(cpuinfo.ctr)) + 3);
}
cpuinfo.dcache_line_mask = cpuinfo.dcache_line_size - 1;
cpuinfo.icache_line_size= 1 << (CPU_CT_IMINLINE(cpuinfo.ctr ) + 2);
cpuinfo.icache_line_mask = cpuinfo.icache_line_size - 1;
}