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authorArnaldo Carvalho de Melo <acme@redhat.com>2020-07-08 13:49:15 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2020-07-08 13:49:15 -0300
commitfacbf0b9820f34f14b54f567862b4a96e910f468 (patch)
treeee65e875e4167dd903f2745cfbf6b2735fd1cd9e /arch/x86/kernel/cpu/resctrl/core.c
parentperf symbols: Add s390 idle functions 'psw_idle' and 'psw_idle_exit' to list of idle symbols (diff)
parentMerge tag 'perf-tools-fixes-2020-07-07' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux (diff)
downloadlinux-dev-facbf0b9820f34f14b54f567862b4a96e910f468.tar.xz
linux-dev-facbf0b9820f34f14b54f567862b4a96e910f468.zip
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up fixes and move perf/core forward, minor conflict as perf_evlist__add_dummy() lost its 'perf_' prefix as it operates on a 'struct evlist', not on a 'struct perf_evlist', i.e. its tools/perf/ specific, it is not in libperf. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'arch/x86/kernel/cpu/resctrl/core.c')
-rw-r--r--arch/x86/kernel/cpu/resctrl/core.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/resctrl/core.c b/arch/x86/kernel/cpu/resctrl/core.c
index 12f967c6b603..6a9df71c1b9e 100644
--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -981,10 +981,10 @@ void resctrl_cpu_detect(struct cpuinfo_x86 *c)
c->x86_cache_max_rmid = ecx;
c->x86_cache_occ_scale = ebx;
- if (c->x86_vendor == X86_VENDOR_INTEL)
- c->x86_cache_mbm_width_offset = eax & 0xff;
- else
- c->x86_cache_mbm_width_offset = -1;
+ c->x86_cache_mbm_width_offset = eax & 0xff;
+
+ if (c->x86_vendor == X86_VENDOR_AMD && !c->x86_cache_mbm_width_offset)
+ c->x86_cache_mbm_width_offset = MBM_CNTR_WIDTH_OFFSET_AMD;
}
}