Commit Graph

7 Commits

Author SHA1 Message Date
Mike Gilbert
c5e29796cf cpupower: avoid multiple definition with gcc -fno-common
[ Upstream commit 2de7fb60a4740135e03cf55c1982e393ccb87b6b ]

Building cpupower with -fno-common in CFLAGS results in errors due to
multiple definitions of the 'cpu_count' and 'start_time' variables.

./utils/idle_monitor/snb_idle.o:./utils/idle_monitor/cpupower-monitor.h:28:
multiple definition of `cpu_count';
./utils/idle_monitor/nhm_idle.o:./utils/idle_monitor/cpupower-monitor.h:28:
first defined here
...
./utils/idle_monitor/cpuidle_sysfs.o:./utils/idle_monitor/cpuidle_sysfs.c:22:
multiple definition of `start_time';
./utils/idle_monitor/amd_fam14h_idle.o:./utils/idle_monitor/amd_fam14h_idle.c:85:
first defined here

The -fno-common option will be enabled by default in GCC 10.

Bug: https://bugs.gentoo.org/707462
Signed-off-by: Mike Gilbert <floppym@gentoo.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-07 14:23:57 +02:00
Nathan Chancellor
5b2ea0ee69 tools/power/cpupower: Fix initializer override in hsw_ext_cstates
[ Upstream commit 7e5705c635ecfccde559ebbbe1eaf05b5cc60529 ]

When building cpupower with clang, the following warning appears:

 utils/idle_monitor/hsw_ext_idle.c:42:16: warning: initializer overrides
 prior initialization of this subobject [-Winitializer-overrides]
                 .desc                   = N_("Processor Package C2"),
                                              ^~~~~~~~~~~~~~~~~~~~~~
 ./utils/helpers/helpers.h:25:33: note: expanded from macro 'N_'
 #define N_(String) gettext_noop(String)
                                 ^~~~~~
 ./utils/helpers/helpers.h:23:30: note: expanded from macro
 'gettext_noop'
 #define gettext_noop(String) String
                              ^~~~~~
 utils/idle_monitor/hsw_ext_idle.c:41:16: note: previous initialization
 is here
                 .desc                   = N_("Processor Package C9"),
                                              ^~~~~~~~~~~~~~~~~~~~~~
 ./utils/helpers/helpers.h:25:33: note: expanded from macro 'N_'
 #define N_(String) gettext_noop(String)
                                 ^~~~~~
 ./utils/helpers/helpers.h:23:30: note: expanded from macro
 'gettext_noop'
 #define gettext_noop(String) String
                             ^~~~~~
 1 warning generated.

This appears to be a copy and paste or merge mistake because the name
and id fields both have PC9 in them, not PC2. Remove the second
assignment to fix the warning.

Fixes: 7ee767b69b68 ("cpupower: Add Haswell family 0x45 specific idle monitor to show PC8,9,10 states")
Link: https://github.com/ClangBuiltLinux/linux/issues/718
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-07 13:20:20 +02:00
Naoya Horiguchi
fada379dc3 tools/power turbostat: fix buffer overrun
[ Upstream commit eeb71c950bc6eee460f2070643ce137e067b234c ]

turbostat could be terminated by general protection fault on some latest
hardwares which (for example) support 9 levels of C-states and show 18
"tADDED" lines. That bloats the total output and finally causes buffer
overrun.  So let's extend the buffer to avoid this.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-06 21:36:59 +02:00
Abhishek Goel
3323c52229 cpupower : frequency-set -r option misses the last cpu in related cpu list
[ Upstream commit 04507c0a9385cc8280f794a36bfff567c8cc1042 ]

To set frequency on specific cpus using cpupower, following syntax can
be used :
cpupower -c #i frequency-set -f #f -r

While setting frequency using cpupower frequency-set command, if we use
'-r' option, it is expected to set frequency for all cpus related to
cpu #i. But it is observed to be missing the last cpu in related cpu
list. This patch fixes the problem.

Signed-off-by: Abhishek Goel <huntbag@linux.vnet.ibm.com>
Reviewed-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-06 19:54:39 +02:00
Thomas Gleixner
9c34cebc88 x86/msr-index: Cleanup bit defines
commit d8eabc37310a92df40d07c5a8afc53cebf996716 upstream.

Greg pointed out that speculation related bit defines are using (1 << N)
format instead of BIT(N). Aside of that (1 << N) is wrong as it should use
1UL at least.

Clean it up.

[ Josh Poimboeuf: Fix tools build ]

Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Reviewed-by: Jon Masters <jcm@redhat.com>
Tested-by: Jon Masters <jcm@redhat.com>
[bwh: Backported to 4.4:
 - Drop change to x86_energy_perf_policy, which doesn't use msr-index.h here
 - Drop changes to flush MSRs which we haven't defined]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-06 16:55:23 +02:00
David Arcari
d062f91acc tools/power turbostat: return the exit status of a command
[ Upstream commit 2a95496634a017c19641f26f00907af75b962f01 ]

turbostat failed to return a non-zero exit status even though the
supplied command (turbostat <command>) failed.  Currently when turbostat
forks a command it returns zero instead of the actual exit status of the
command.  Modify the code to return the exit status.

Signed-off-by: David Arcari <darcari@redhat.com>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-06 15:17:11 +02:00
prashantpaddune
3bca37f224 A750FXXU4CTBC 2020-03-27 21:51:54 +05:30