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x86/cpu: Get rid of compute_unit_id

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It is cpu_core_id anyway.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1458917557-8757-3-git-send-email-bp@alien8.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Borislav Petkov
2016-03-25 15:52:36 +01:00
committed by Thomas Gleixner
parent 32b62f4468
commit 8196dab4fc
4 changed files with 6 additions and 14 deletions
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10
arch/x86/kernel/cpu/amd.c
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@@ -300,7 +300,6 @@ static int nearby_node(int apicid)
#ifdef CONFIG_SMP
static void amd_get_topology(struct cpuinfo_x86 *c)
{
u32 cores_per_cu = 1;
u8 node_id;
int cpu = smp_processor_id();
@@ -312,9 +311,9 @@ static void amd_get_topology(struct cpuinfo_x86 *c)
node_id = ecx & 7;
/* get compute unit information */
cores_per_cu = smp_num_siblings = ((ebx >> 8) & 3) + 1;
smp_num_siblings = ((ebx >> 8) & 3) + 1;
c->x86_max_cores /= smp_num_siblings;
c->compute_unit_id = ebx & 0xff;
c->cpu_core_id = ebx & 0xff;
} else if (cpu_has(c, X86_FEATURE_NODEID_MSR)) {
u64 value;
@@ -325,19 +324,16 @@ static void amd_get_topology(struct cpuinfo_x86 *c)
/* fixup multi-node processor information */
if (nodes_per_socket > 1) {
u32 cores_per_node;
u32 cus_per_node;
set_cpu_cap(c, X86_FEATURE_AMD_DCM);
cus_per_node = c->x86_max_cores / nodes_per_socket;
cores_per_node = cus_per_node * cores_per_cu;
/* store NodeID, use llc_shared_map to store sibling info */
per_cpu(cpu_llc_id, cpu) = node_id;
/* core id has to be in the [0 .. cores_per_node - 1] range */
c->cpu_core_id %= cores_per_node;
c->compute_unit_id %= cus_per_node;
c->cpu_core_id %= cus_per_node;
}
}
#endif