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Commit 252943ef authored by Venkatesh Pallipadi's avatar Venkatesh Pallipadi Committed by Linus Torvalds
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[PATCH] x86: Add the check for all the cores in a package in cache information 



Signed-off-by: default avatarVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 911a62d4

arch/i386/kernel/cpu/intel_cacheinfo.c

+7 −2
Original line number Diff line number Diff line
@@ -305,6 +305,9 @@ static void __devinit cache_shared_cpu_map_setup(unsigned int cpu, int index) 
{

	struct _cpuid4_info	*this_leaf;

	unsigned long num_threads_sharing;

#ifdef CONFIG_X86_HT

	struct cpuinfo_x86 *c = cpu_data + cpu;

#endif



	this_leaf = CPUID4_INFO_IDX(cpu, index);

	num_threads_sharing = 1 + this_leaf->eax.split.num_threads_sharing;
@@ -314,10 +317,12 @@ static void __devinit cache_shared_cpu_map_setup(unsigned int cpu, int index) 
#ifdef CONFIG_X86_HT

	else if (num_threads_sharing == smp_num_siblings)

		this_leaf->shared_cpu_map = cpu_sibling_map[cpu];

#endif

	else if (num_threads_sharing == (c->x86_num_cores * smp_num_siblings))

		this_leaf->shared_cpu_map = cpu_core_map[cpu];

	else

		printk(KERN_INFO "Number of CPUs sharing cache didn't match "

		printk(KERN_DEBUG "Number of CPUs sharing cache didn't match "

				"any known set of CPUs\n");

#endif

}

#else

static void __init cache_shared_cpu_map_setup(unsigned int cpu, int index) {}