Commit 8209e054 authored by Thomas Renninger's avatar Thomas Renninger Committed by Len Brown
Browse files

tools: turbostat: fix bitwise and operand



bug could cause false positive on indicating
presence of invarient TSC or APERF support.
Signed-off-by: default avatarThomas Renninger <trenn@suse.de>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 6148a47a
......@@ -892,7 +892,7 @@ void check_cpuid()
* this check is valid for both Intel and AMD
*/
asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x80000007));
has_invariant_tsc = edx && (1 << 8);
has_invariant_tsc = edx & (1 << 8);
if (!has_invariant_tsc) {
fprintf(stderr, "No invariant TSC\n");
......@@ -905,7 +905,7 @@ void check_cpuid()
*/
asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x6));
has_aperf = ecx && (1 << 0);
has_aperf = ecx & (1 << 0);
if (!has_aperf) {
fprintf(stderr, "No APERF MSR\n");
exit(1);
......
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