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Shenoy" To: Srikar Dronamraju , Anton Blanchard , Vaidyanathan Srinivasan , Michael Ellerman , Michael Neuling , Nicholas Piggin , Nathan Lynch , Peter Zijlstra , Valentin Schneider Subject: [PATCH v3 2/5] powerpc/smp: Rename cpu_l1_cache_map as thread_group_l1_cache_map Date: Thu, 10 Dec 2020 16:08:56 +0530 Message-Id: <1607596739-32439-3-git-send-email-ego@linux.vnet.ibm.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1607596739-32439-1-git-send-email-ego@linux.vnet.ibm.com> References: <1607596739-32439-1-git-send-email-ego@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343, 18.0.737 definitions=2020-12-10_03:2020-12-09, 2020-12-10 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 spamscore=0 phishscore=0 clxscore=1015 mlxlogscore=999 bulkscore=0 suspectscore=0 adultscore=0 mlxscore=0 malwarescore=0 priorityscore=1501 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2012100070 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Gautham R. Shenoy" , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: "Gautham R. Shenoy" 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 --- arch/powerpc/kernel/smp.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 88d88ad..f3290d5 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 @@ 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); } -- 1.9.4