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powerpc/smp: Rename cpu_l1_cache_map as thread_group_l1_cache_map

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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
This commit is contained in:
Gautham R. Shenoy 2020-12-10 16:08:56 +05:30 committed by Michael Ellerman
parent 790a1662d3
commit 1fdc1d6632
1 changed files with 7 additions and 7 deletions
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14
arch/powerpc/kernel/smp.c
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@ -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 @@ static struct thread_groups *__init get_thread_groups(int cpu,
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);
}