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Commit ee811517 authored by Markus Metzger's avatar Markus Metzger Committed by Ingo Molnar
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x86, ds: use single debug store cpu configuration 



Use a single configuration for all cpus.

Reported-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarMarkus Metzger <markus.t.metzger@intel.com>
Cc: roland@redhat.com
Cc: eranian@googlemail.com
Cc: oleg@redhat.com
Cc: juan.villacis@intel.com
Cc: ak@linux.jf.intel.com
LKML-Reference: <20090403144602.191165000@intel.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 2311f0de

arch/x86/kernel/ds.c

+5 −2
Original line number Diff line number Diff line
@@ -47,9 +47,8 @@ struct ds_configuration { 
	/* Control bit-masks indexed by enum ds_feature: */

	unsigned long		ctl[dsf_ctl_max];

};

static DEFINE_PER_CPU(struct ds_configuration, ds_cfg_array);

static struct ds_configuration ds_cfg __read_mostly;



#define ds_cfg per_cpu(ds_cfg_array, smp_processor_id())



/* Maximal size of a DS configuration: */

#define MAX_SIZEOF_DS		(12 * 8)
@@ -1268,6 +1267,10 @@ ds_configure(const struct ds_configuration *cfg, 


void __cpuinit ds_init_intel(struct cpuinfo_x86 *c)

{

	/* Only configure the first cpu. Others are identical. */

	if (ds_cfg.name)

		return;



	switch (c->x86) {

	case 0x6:

		switch (c->x86_model) {