cacheinfo: add i/d cache_linesize_log
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <20180910232752.31565-2-cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/util/cacheinfo.c b/util/cacheinfo.c
index db5172d..6c8fe79 100644
--- a/util/cacheinfo.c
+++ b/util/cacheinfo.c
@@ -7,9 +7,12 @@
*/
#include "qemu/osdep.h"
+#include "qemu/host-utils.h"
int qemu_icache_linesize = 0;
+int qemu_icache_linesize_log;
int qemu_dcache_linesize = 0;
+int qemu_dcache_linesize_log;
/*
* Operating system specific detection mechanisms.
@@ -172,6 +175,11 @@
arch_cache_info(&isize, &dsize);
fallback_cache_info(&isize, &dsize);
+ assert((isize & (isize - 1)) == 0);
+ assert((dsize & (dsize - 1)) == 0);
+
qemu_icache_linesize = isize;
+ qemu_icache_linesize_log = ctz32(isize);
qemu_dcache_linesize = dsize;
+ qemu_dcache_linesize_log = ctz32(dsize);
}