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From: Sudeep Holla <sudeep.holla@arm.com>
To: linux-kernel@vger.kernel.org
Cc: Sudeep Holla <sudeep.holla@arm.com>,
	Atish Patra <atishp@atishpatra.org>,
	Atish Patra <atishp@rivosinc.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Morten Rasmussen <morten.rasmussen@arm.com>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Qing Wang <wangqing@vivo.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-riscv@lists.infradead.org, Rob Herring <robh+dt@kernel.org>
Subject: [PATCH v3 08/16] arm64: topology: Remove redundant setting of llc_id in CPU topology
Date: Wed, 25 May 2022 09:14:08 +0100	[thread overview]
Message-ID: <20220525081416.3306043-9-sudeep.holla@arm.com> (raw)
In-Reply-To: <20220525081416.3306043-8-sudeep.holla@arm.com>

Since the cacheinfo LLC information is used directly in arch_topology,
there is no need to parse and fetch the LLC ID information only for
ACPI systems.

Just drop the redundant parsing and setting of llc_id in CPU topology
from ACPI PPTT.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
---
 arch/arm64/kernel/topology.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c
index 9ab78ad826e2..869ffc4d4484 100644
--- a/arch/arm64/kernel/topology.c
+++ b/arch/arm64/kernel/topology.c
@@ -89,8 +89,6 @@ int __init parse_acpi_topology(void)
 		return 0;
 
 	for_each_possible_cpu(cpu) {
-		int i, cache_id;
-
 		topology_id = find_acpi_cpu_topology(cpu, 0);
 		if (topology_id < 0)
 			return topology_id;
@@ -107,18 +105,6 @@ int __init parse_acpi_topology(void)
 		cpu_topology[cpu].cluster_id = topology_id;
 		topology_id = find_acpi_cpu_topology_package(cpu);
 		cpu_topology[cpu].package_id = topology_id;
-
-		i = acpi_find_last_cache_level(cpu);
-
-		if (i > 0) {
-			/*
-			 * this is the only part of cpu_topology that has
-			 * a direct relationship with the cache topology
-			 */
-			cache_id = find_acpi_cpu_cache_topology(cpu, i);
-			if (cache_id > 0)
-				cpu_topology[cpu].llc_id = cache_id;
-		}
 	}
 
 	return 0;
-- 
2.36.1


WARNING: multiple messages have this Message-ID (diff)
From: Sudeep Holla <sudeep.holla@arm.com>
To: linux-kernel@vger.kernel.org
Cc: Sudeep Holla <sudeep.holla@arm.com>,
	Atish Patra <atishp@atishpatra.org>,
	Atish Patra <atishp@rivosinc.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Morten Rasmussen <morten.rasmussen@arm.com>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Qing Wang <wangqing@vivo.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-riscv@lists.infradead.org, Rob Herring <robh+dt@kernel.org>
Subject: [PATCH v3 08/16] arm64: topology: Remove redundant setting of llc_id in CPU topology
Date: Wed, 25 May 2022 09:14:08 +0100	[thread overview]
Message-ID: <20220525081416.3306043-9-sudeep.holla@arm.com> (raw)
In-Reply-To: <20220525081416.3306043-8-sudeep.holla@arm.com>

Since the cacheinfo LLC information is used directly in arch_topology,
there is no need to parse and fetch the LLC ID information only for
ACPI systems.

Just drop the redundant parsing and setting of llc_id in CPU topology
from ACPI PPTT.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
---
 arch/arm64/kernel/topology.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c
index 9ab78ad826e2..869ffc4d4484 100644
--- a/arch/arm64/kernel/topology.c
+++ b/arch/arm64/kernel/topology.c
@@ -89,8 +89,6 @@ int __init parse_acpi_topology(void)
 		return 0;
 
 	for_each_possible_cpu(cpu) {
-		int i, cache_id;
-
 		topology_id = find_acpi_cpu_topology(cpu, 0);
 		if (topology_id < 0)
 			return topology_id;
@@ -107,18 +105,6 @@ int __init parse_acpi_topology(void)
 		cpu_topology[cpu].cluster_id = topology_id;
 		topology_id = find_acpi_cpu_topology_package(cpu);
 		cpu_topology[cpu].package_id = topology_id;
-
-		i = acpi_find_last_cache_level(cpu);
-
-		if (i > 0) {
-			/*
-			 * this is the only part of cpu_topology that has
-			 * a direct relationship with the cache topology
-			 */
-			cache_id = find_acpi_cpu_cache_topology(cpu, i);
-			if (cache_id > 0)
-				cpu_topology[cpu].llc_id = cache_id;
-		}
 	}
 
 	return 0;
-- 
2.36.1


_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

WARNING: multiple messages have this Message-ID (diff)
From: Sudeep Holla <sudeep.holla@arm.com>
To: linux-kernel@vger.kernel.org
Cc: Sudeep Holla <sudeep.holla@arm.com>,
	Atish Patra <atishp@atishpatra.org>,
	Atish Patra <atishp@rivosinc.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Morten Rasmussen <morten.rasmussen@arm.com>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Qing Wang <wangqing@vivo.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-riscv@lists.infradead.org, Rob Herring <robh+dt@kernel.org>
Subject: [PATCH v3 08/16] arm64: topology: Remove redundant setting of llc_id in CPU topology
Date: Wed, 25 May 2022 09:14:08 +0100	[thread overview]
Message-ID: <20220525081416.3306043-9-sudeep.holla@arm.com> (raw)
In-Reply-To: <20220525081416.3306043-8-sudeep.holla@arm.com>

Since the cacheinfo LLC information is used directly in arch_topology,
there is no need to parse and fetch the LLC ID information only for
ACPI systems.

Just drop the redundant parsing and setting of llc_id in CPU topology
from ACPI PPTT.

Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
---
 arch/arm64/kernel/topology.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c
index 9ab78ad826e2..869ffc4d4484 100644
--- a/arch/arm64/kernel/topology.c
+++ b/arch/arm64/kernel/topology.c
@@ -89,8 +89,6 @@ int __init parse_acpi_topology(void)
 		return 0;
 
 	for_each_possible_cpu(cpu) {
-		int i, cache_id;
-
 		topology_id = find_acpi_cpu_topology(cpu, 0);
 		if (topology_id < 0)
 			return topology_id;
@@ -107,18 +105,6 @@ int __init parse_acpi_topology(void)
 		cpu_topology[cpu].cluster_id = topology_id;
 		topology_id = find_acpi_cpu_topology_package(cpu);
 		cpu_topology[cpu].package_id = topology_id;
-
-		i = acpi_find_last_cache_level(cpu);
-
-		if (i > 0) {
-			/*
-			 * this is the only part of cpu_topology that has
-			 * a direct relationship with the cache topology
-			 */
-			cache_id = find_acpi_cpu_cache_topology(cpu, i);
-			if (cache_id > 0)
-				cpu_topology[cpu].llc_id = cache_id;
-		}
 	}
 
 	return 0;
-- 
2.36.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2022-05-25  8:15 UTC|newest]

Thread overview: 153+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-25  8:14 [PATCH v3 00/16] arch_topology: Updates to add socket support and fix cluster ids Sudeep Holla
2022-05-25  8:14 ` Sudeep Holla
2022-05-25  8:14 ` Sudeep Holla
2022-05-25  8:14 ` [PATCH v3 01/16] cacheinfo: Use of_cpu_device_node_get instead cpu_dev->of_node Sudeep Holla
2022-05-25  8:14   ` Sudeep Holla
2022-05-25  8:14   ` Sudeep Holla
2022-05-25  8:14   ` [PATCH v3 02/16] cacheinfo: Add helper to access any cache index for a given CPU Sudeep Holla
2022-05-25  8:14     ` Sudeep Holla
2022-05-25  8:14     ` Sudeep Holla
2022-05-25  8:14     ` [PATCH v3 03/16] cacheinfo: Move cache_leaves_are_shared out of CONFIG_OF Sudeep Holla
2022-05-25  8:14       ` Sudeep Holla
2022-05-25  8:14       ` Sudeep Holla
2022-05-25  8:14       ` [PATCH v3 04/16] cacheinfo: Add support to check if last level cache(LLC) is valid or shared Sudeep Holla
2022-05-25  8:14         ` Sudeep Holla
2022-05-25  8:14         ` Sudeep Holla
2022-05-25  8:14         ` [PATCH v3 05/16] cacheinfo: Allow early detection and population of cache attributes Sudeep Holla
2022-05-25  8:14           ` Sudeep Holla
2022-05-25  8:14           ` Sudeep Holla
2022-05-25  8:14           ` [PATCH v3 06/16] arch_topology: Add support to parse and detect " Sudeep Holla
2022-05-25  8:14             ` Sudeep Holla
2022-05-25  8:14             ` Sudeep Holla
2022-05-25  8:14             ` [PATCH v3 07/16] arch_topology: Use the last level cache information from the cacheinfo Sudeep Holla
2022-05-25  8:14               ` Sudeep Holla
2022-05-25  8:14               ` Sudeep Holla
2022-05-25  8:14               ` Sudeep Holla [this message]
2022-05-25  8:14                 ` [PATCH v3 08/16] arm64: topology: Remove redundant setting of llc_id in CPU topology Sudeep Holla
2022-05-25  8:14                 ` Sudeep Holla
2022-05-25  8:14                 ` [PATCH v3 09/16] arch_topology: Drop LLC identifier stash from the " Sudeep Holla
2022-05-25  8:14                   ` Sudeep Holla
2022-05-25  8:14                   ` Sudeep Holla
2022-05-25  8:14                   ` [PATCH v3 10/16] arch_topology: Set thread sibling cpumask only within the cluster Sudeep Holla
2022-05-25  8:14                     ` Sudeep Holla
2022-05-25  8:14                     ` Sudeep Holla
2022-05-25  8:14                     ` [PATCH v3 11/16] arch_topology: Check for non-negative value rather than -1 for IDs validity Sudeep Holla
2022-05-25  8:14                       ` Sudeep Holla
2022-05-25  8:14                       ` Sudeep Holla
2022-05-25  8:14                       ` [PATCH v3 12/16] arch_topology: Avoid parsing through all the CPUs once a outlier CPU is found Sudeep Holla
2022-05-25  8:14                         ` Sudeep Holla
2022-05-25  8:14                         ` Sudeep Holla
2022-05-25  8:14                         ` [PATCH v3 13/16] arch_topology: Don't set cluster identifier as physical package identifier Sudeep Holla
2022-05-25  8:14                           ` Sudeep Holla
2022-05-25  8:14                           ` Sudeep Holla
2022-05-25  8:14                           ` [PATCH v3 14/16] arch_topology: Drop unnecessary check for uninitialised package_id Sudeep Holla
2022-05-25  8:14                             ` Sudeep Holla
2022-05-25  8:14                             ` Sudeep Holla
2022-05-25  8:14                             ` [PATCH v3 15/16] arch_topology: Set cluster identifier in each core/thread from /cpu-map Sudeep Holla
2022-05-25  8:14                               ` Sudeep Holla
2022-05-25  8:14                               ` Sudeep Holla
2022-05-25  8:14                               ` [PATCH v3 16/16] arch_topology: Add support for parsing sockets in /cpu-map Sudeep Holla
2022-05-25  8:14                                 ` Sudeep Holla
2022-05-25  8:14                                 ` Sudeep Holla
2022-06-03 12:30                               ` [PATCH v3 15/16] arch_topology: Set cluster identifier in each core/thread from /cpu-map Dietmar Eggemann
2022-06-03 12:30                                 ` Dietmar Eggemann
2022-06-03 12:30                                 ` Dietmar Eggemann
2022-06-06 10:21                                 ` Sudeep Holla
2022-06-06 10:21                                   ` Sudeep Holla
2022-06-06 10:21                                   ` Sudeep Holla
2022-06-10 10:08                                   ` Vincent Guittot
2022-06-10 10:08                                     ` Vincent Guittot
2022-06-10 10:08                                     ` Vincent Guittot
2022-06-10 10:27                                     ` Sudeep Holla
2022-06-10 10:27                                       ` Sudeep Holla
2022-06-10 10:27                                       ` Sudeep Holla
2022-06-13  9:19                                       ` Dietmar Eggemann
2022-06-13  9:19                                         ` Dietmar Eggemann
2022-06-13  9:19                                         ` Dietmar Eggemann
2022-06-13 11:17                                         ` Sudeep Holla
2022-06-13 11:17                                           ` Sudeep Holla
2022-06-13 11:17                                           ` Sudeep Holla
2022-06-16 16:02                                           ` Dietmar Eggemann
2022-06-16 16:02                                             ` Dietmar Eggemann
2022-06-16 16:02                                             ` Dietmar Eggemann
2022-06-17 11:16                                             ` Sudeep Holla
2022-06-17 11:16                                               ` Sudeep Holla
2022-06-17 11:16                                               ` Sudeep Holla
2022-06-20 13:27                                               ` Dietmar Eggemann
2022-06-20 13:27                                                 ` Dietmar Eggemann
2022-06-20 13:27                                                 ` Dietmar Eggemann
2022-06-21 16:00                                                 ` Sudeep Holla
2022-06-21 16:00                                                   ` Sudeep Holla
2022-06-21 16:00                                                   ` Sudeep Holla
2022-06-14 17:59                                       ` Vincent Guittot
2022-06-14 17:59                                         ` Vincent Guittot
2022-06-14 17:59                                         ` Vincent Guittot
2022-06-15 17:00                                         ` Sudeep Holla
2022-06-15 17:00                                           ` Sudeep Holla
2022-06-15 17:00                                           ` Sudeep Holla
2022-06-15 22:44                                           ` Vincent Guittot
2022-06-15 22:44                                             ` Vincent Guittot
2022-06-15 22:44                                             ` Vincent Guittot
2022-06-15 22:45                                           ` Vincent Guittot
2022-06-15 22:45                                             ` Vincent Guittot
2022-06-15 22:45                                             ` Vincent Guittot
2022-06-01  3:40                         ` [PATCH v3 12/16] arch_topology: Avoid parsing through all the CPUs once a outlier CPU is found Gavin Shan
2022-06-01  3:40                           ` Gavin Shan
2022-06-01  3:40                           ` Gavin Shan
2022-06-01  3:38                       ` [PATCH v3 11/16] arch_topology: Check for non-negative value rather than -1 for IDs validity Gavin Shan
2022-06-01  3:38                         ` Gavin Shan
2022-06-01  3:38                         ` Gavin Shan
2022-06-01  3:36                     ` [PATCH v3 10/16] arch_topology: Set thread sibling cpumask only within the cluster Gavin Shan
2022-06-01  3:36                       ` Gavin Shan
2022-06-01  3:36                       ` Gavin Shan
2022-06-01  3:35                   ` [PATCH v3 09/16] arch_topology: Drop LLC identifier stash from the CPU topology Gavin Shan
2022-06-01  3:35                     ` Gavin Shan
2022-06-01  3:35                     ` Gavin Shan
2022-06-01 12:06                     ` Sudeep Holla
2022-06-01 12:06                       ` Sudeep Holla
2022-06-01 12:06                       ` Sudeep Holla
2022-06-02  6:44                       ` Gavin Shan
2022-06-02  6:44                         ` Gavin Shan
2022-06-02  6:44                         ` Gavin Shan
2022-06-02  6:42                   ` Gavin Shan
2022-06-02  6:42                     ` Gavin Shan
2022-06-02  6:42                     ` Gavin Shan
2022-06-02  6:42                 ` [PATCH v3 08/16] arm64: topology: Remove redundant setting of llc_id in " Gavin Shan
2022-06-02  6:42                   ` Gavin Shan
2022-06-02  6:42                   ` Gavin Shan
2022-06-01  3:31               ` [PATCH v3 07/16] arch_topology: Use the last level cache information from the cacheinfo Gavin Shan
2022-06-01  3:31                 ` Gavin Shan
2022-06-01  3:31                 ` Gavin Shan
2022-06-02 14:26               ` Dietmar Eggemann
2022-06-02 14:26                 ` Dietmar Eggemann
2022-06-02 14:26                 ` Dietmar Eggemann
2022-06-06  9:54                 ` Sudeep Holla
2022-06-06  9:54                   ` Sudeep Holla
2022-06-06  9:54                   ` Sudeep Holla
2022-06-01  3:29             ` [PATCH v3 06/16] arch_topology: Add support to parse and detect cache attributes Gavin Shan
2022-06-01  3:29               ` Gavin Shan
2022-06-01  3:29               ` Gavin Shan
2022-06-01  3:25           ` [PATCH v3 05/16] cacheinfo: Allow early detection and population of " Gavin Shan
2022-06-01  3:25             ` Gavin Shan
2022-06-01  3:25             ` Gavin Shan
2022-06-01  3:20         ` [PATCH v3 04/16] cacheinfo: Add support to check if last level cache(LLC) is valid or shared Gavin Shan
2022-06-01  3:20           ` Gavin Shan
2022-06-01  3:20           ` Gavin Shan
2022-06-01  2:51       ` [PATCH v3 03/16] cacheinfo: Move cache_leaves_are_shared out of CONFIG_OF Gavin Shan
2022-06-01  2:51         ` Gavin Shan
2022-06-01  2:51         ` Gavin Shan
2022-06-01  2:44     ` [PATCH v3 02/16] cacheinfo: Add helper to access any cache index for a given CPU Gavin Shan
2022-06-01  2:44       ` Gavin Shan
2022-06-01  2:44       ` Gavin Shan
2022-06-01 12:45       ` Sudeep Holla
2022-06-01 12:45         ` Sudeep Holla
2022-06-01 12:45         ` Sudeep Holla
2022-06-01  2:45   ` [PATCH v3 01/16] cacheinfo: Use of_cpu_device_node_get instead cpu_dev->of_node Gavin Shan
2022-06-01  2:45     ` Gavin Shan
2022-06-01  2:45     ` Gavin Shan
2022-06-01  3:49 ` [PATCH v3 00/16] arch_topology: Updates to add socket support and fix cluster ids Gavin Shan
2022-06-01  3:49   ` Gavin Shan
2022-06-01  3:49   ` Gavin Shan
2022-06-01 12:03   ` Sudeep Holla
2022-06-01 12:03     ` Sudeep Holla
2022-06-01 12:03     ` Sudeep Holla

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