Build of aperf fails as below:
```
gcc -Wall -D_GNU_SOURCE -lm aperf.c -o /tools/testing/selftests/intel_pstate/aperf
/tmp/ccKf3GF6.o: In function `main':
aperf.c:(.text+0x278): undefined reference to `sqrt'
collect2: error: ld returned 1 exit status
```
The faulure occurs because -lm was defined as LDFLAGS and implicit rule
of make places LDFLAGS before source file. This commit fixes the
problem by using LDLIBS instead of LDFLAGS.
Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Recent changes from Bamvor (88baa78d1f) have standardized the
variable names like TEST_GEN_FILES and removed the need for make targets
all and clean.
These changes bring the intel_pstate test inline with those changes.
Cc: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
This test used the cpupower utility to set the cpu frequency from the
maximum turbo value to the minimum supported value in steps of 100 MHz.
The results are displayed in a table which indicate the "Target" state,
or the requested frequency in MHz, the Actual frequency, as read from
/proc/cpuinfo, the difference between the Target and Actual frequencies,
and the value of MSR 0x199 (MSR_IA32_PERF_CTL) which indicates what
pstate the cpu is in, and the value of
/sys/devices/system/cpu/intel_pstate/max_perf_pct X maximum turbo state
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Cc: linux-api@vger.kernel.org
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
