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| author | Gautham R. Shenoy <ego@linux.vnet.ibm.com> | 2020-12-10 13:38:56 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-10 16:10:24 +0300 |
| commit | 1fdc1d6632ff3f6813a2f15b65586bde8fe0f0ba (patch) | |
| tree | a1c81f261b824fef48bf8e7ad59121f1acd6b409 /arch/powerpc/kernel/smp.c | |
| parent | 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2 (diff) | |
| download | linux-1fdc1d6632ff3f6813a2f15b65586bde8fe0f0ba.tar.xz | |
powerpc/smp: Rename cpu_l1_cache_map as thread_group_l1_cache_map
On platforms which have the "ibm,thread-groups" property, the per-cpu
variable cpu_l1_cache_map keeps a track of which group of threads
within the same core share the L1 cache, Instruction and Data flow.
This patch renames the variable to "thread_group_l1_cache_map" to make
it consistent with a subsequent patch which will introduce
thread_group_l2_cache_map.
This patch introduces no functional change.
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1607596739-32439-3-git-send-email-ego@linux.vnet.ibm.com
Diffstat (limited to 'arch/powerpc/kernel/smp.c')
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 88d88ad907a7..f3290d57fea6 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -116,10 +116,10 @@ struct thread_groups_list { static struct thread_groups_list tgl[NR_CPUS] __initdata; /* - * On big-cores system, cpu_l1_cache_map for each CPU corresponds to + * On big-cores system, thread_group_l1_cache_map for each CPU corresponds to * the set its siblings that share the L1-cache. */ -DEFINE_PER_CPU(cpumask_var_t, cpu_l1_cache_map); +DEFINE_PER_CPU(cpumask_var_t, thread_group_l1_cache_map); /* SMP operations for this machine */ struct smp_ops_t *smp_ops; @@ -866,7 +866,7 @@ out: return tg; } -static int init_cpu_l1_cache_map(int cpu) +static int init_thread_group_l1_cache_map(int cpu) { int first_thread = cpu_first_thread_sibling(cpu); @@ -885,7 +885,7 @@ static int init_cpu_l1_cache_map(int cpu) return -ENODATA; } - zalloc_cpumask_var_node(&per_cpu(cpu_l1_cache_map, cpu), + zalloc_cpumask_var_node(&per_cpu(thread_group_l1_cache_map, cpu), GFP_KERNEL, cpu_to_node(cpu)); for (i = first_thread; i < first_thread + threads_per_core; i++) { @@ -897,7 +897,7 @@ static int init_cpu_l1_cache_map(int cpu) } if (i_group_start == cpu_group_start) - cpumask_set_cpu(i, per_cpu(cpu_l1_cache_map, cpu)); + cpumask_set_cpu(i, per_cpu(thread_group_l1_cache_map, cpu)); } return 0; @@ -976,7 +976,7 @@ static int init_big_cores(void) int cpu; for_each_possible_cpu(cpu) { - int err = init_cpu_l1_cache_map(cpu); + int err = init_thread_group_l1_cache_map(cpu); if (err) return err; @@ -1372,7 +1372,7 @@ static inline void add_cpu_to_smallcore_masks(int cpu) cpumask_set_cpu(cpu, cpu_smallcore_mask(cpu)); - for_each_cpu(i, per_cpu(cpu_l1_cache_map, cpu)) { + for_each_cpu(i, per_cpu(thread_group_l1_cache_map, cpu)) { if (cpu_online(i)) set_cpus_related(i, cpu, cpu_smallcore_mask); } |