Messages in this thread Patch in this message | | | From | Sudeep Holla <> | Subject | [PATCH v3 07/16] arch_topology: Use the last level cache information from the cacheinfo | Date | Wed, 25 May 2022 09:14:07 +0100 |
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The cacheinfo is now initialised early along with the CPU topology initialisation. Instead of relying on the LLC ID information parsed separately only with ACPI PPTT elsewhere, migrate to use the similar information from the cacheinfo.
This is generic for both DT and ACPI systems. The ACPI LLC ID information parsed separately can now be removed from arch specific code.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> --- drivers/base/arch_topology.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c index 765723448b10..4c486e4e6f2f 100644 --- a/drivers/base/arch_topology.c +++ b/drivers/base/arch_topology.c @@ -663,7 +663,8 @@ const struct cpumask *cpu_coregroup_mask(int cpu) /* not numa in package, lets use the package siblings */ core_mask = &cpu_topology[cpu].core_sibling; } - if (cpu_topology[cpu].llc_id != -1) { + + if (last_level_cache_is_valid(cpu)) { if (cpumask_subset(&cpu_topology[cpu].llc_sibling, core_mask)) core_mask = &cpu_topology[cpu].llc_sibling; } @@ -694,7 +695,7 @@ void update_siblings_masks(unsigned int cpuid) for_each_online_cpu(cpu) { cpu_topo = &cpu_topology[cpu]; - if (cpu_topo->llc_id != -1 && cpuid_topo->llc_id == cpu_topo->llc_id) { + if (last_level_cache_is_shared(cpu, cpuid)) { cpumask_set_cpu(cpu, &cpuid_topo->llc_sibling); cpumask_set_cpu(cpuid, &cpu_topo->llc_sibling); } -- 2.36.1
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