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authorArnaldo Carvalho de Melo <acme@redhat.com>2012-05-18 16:13:33 (GMT)
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-05-18 16:13:33 (GMT)
commit16ee6576e25b83806d26eb771138249fcfb5eddc (patch)
tree7c717b80f28b5c59ba673dc00f2ca9bd0fc068d4 /arch/x86/kernel/cpu
parent16fa7e8200fb9066b77a3f27cbed8e4a9fc71998 (diff)
parent9b63776fa3ca96c4ecda76f6fa947b7b0add66ac (diff)
downloadlinux-16ee6576e25b83806d26eb771138249fcfb5eddc.tar.xz
Merge remote-tracking branch 'tip/perf/urgent' into perf/core
Merge reason: We are going to queue up a dependent patch: "perf tools: Move parse event automated tests to separated object" That depends on: commit e7c72d8 perf tools: Add 'G' and 'H' modifiers to event parsing Conflicts: tools/perf/builtin-stat.c Conflicted with the recent 'perf_target' patches when checking the result of perf_evsel open routines to see if a retry is needed to cope with older kernels where the exclude guest/host perf_event_attr bits were not used. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'arch/x86/kernel/cpu')
-rw-r--r--arch/x86/kernel/cpu/amd.c11
-rw-r--r--arch/x86/kernel/cpu/common.c9
-rw-r--r--arch/x86/kernel/cpu/intel_cacheinfo.c8
3 files changed, 10 insertions, 18 deletions
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 0a44b90..1c67ca1 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -26,7 +26,8 @@
* contact AMD for precise details and a CPU swap.
*
* See http://www.multimania.com/poulot/k6bug.html
- * http://www.amd.com/K6/k6docs/revgd.html
+ * and section 2.6.2 of "AMD-K6 Processor Revision Guide - Model 6"
+ * (Publication # 21266 Issue Date: August 1998)
*
* The following test is erm.. interesting. AMD neglected to up
* the chip setting when fixing the bug but they also tweaked some
@@ -94,7 +95,6 @@ static void __cpuinit init_amd_k6(struct cpuinfo_x86 *c)
"system stability may be impaired when more than 32 MB are used.\n");
else
printk(KERN_CONT "probably OK (after B9730xxxx).\n");
- printk(KERN_INFO "Please see http://membres.lycos.fr/poulot/k6bug.html\n");
}
/* K6 with old style WHCR */
@@ -353,10 +353,11 @@ static void __cpuinit srat_detect_node(struct cpuinfo_x86 *c)
node = per_cpu(cpu_llc_id, cpu);
/*
- * If core numbers are inconsistent, it's likely a multi-fabric platform,
- * so invoke platform-specific handler
+ * On multi-fabric platform (e.g. Numascale NumaChip) a
+ * platform-specific handler needs to be called to fixup some
+ * IDs of the CPU.
*/
- if (c->phys_proc_id != node)
+ if (x86_cpuinit.fixup_cpu_id)
x86_cpuinit.fixup_cpu_id(c, node);
if (!node_online(node)) {
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 67e2583..cf79302 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1163,15 +1163,6 @@ static void dbg_restore_debug_regs(void)
#endif /* ! CONFIG_KGDB */
/*
- * Prints an error where the NUMA and configured core-number mismatch and the
- * platform didn't override this to fix it up
- */
-void __cpuinit x86_default_fixup_cpu_id(struct cpuinfo_x86 *c, int node)
-{
- pr_err("NUMA core number %d differs from configured core number %d\n", node, c->phys_proc_id);
-}
-
-/*
* cpu_init() initializes state that is per-CPU. Some data is already
* initialized (naturally) in the bootstrap process, such as the GDT
* and IDT. We reload them nevertheless, this function acts as a
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 73d08ed..b8f3653 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -433,14 +433,14 @@ int amd_set_l3_disable_slot(struct amd_northbridge *nb, int cpu, unsigned slot,
/* check if @slot is already used or the index is already disabled */
ret = amd_get_l3_disable_slot(nb, slot);
if (ret >= 0)
- return -EINVAL;
+ return -EEXIST;
if (index > nb->l3_cache.indices)
return -EINVAL;
/* check whether the other slot has disabled the same index already */
if (index == amd_get_l3_disable_slot(nb, !slot))
- return -EINVAL;
+ return -EEXIST;
amd_l3_disable_index(nb, cpu, slot, index);
@@ -468,8 +468,8 @@ static ssize_t store_cache_disable(struct _cpuid4_info *this_leaf,
err = amd_set_l3_disable_slot(this_leaf->base.nb, cpu, slot, val);
if (err) {
if (err == -EEXIST)
- printk(KERN_WARNING "L3 disable slot %d in use!\n",
- slot);
+ pr_warning("L3 slot %d in use/index already disabled!\n",
+ slot);
return err;
}
return count;