linux-kernel - [patch 25/29] x86/cpu: Make topology_amd_node

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20230724172845.149433362@linutronix.de>
Date:   Mon, 24 Jul 2023 19:44:30 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     x86@...nel.org, Tom Lendacky <thomas.lendacky@....com>,
        Andrew Cooper <andrew.cooper3@...rix.com>,
        Arjan van de Ven <arjan@...ux.intel.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Dick Kennedy <dick.kennedy@...adcom.com>,
        James Smart <james.smart@...adcom.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-hwmon@...r.kernel.org,
        Jean Delvare <jdelvare@...e.com>,
        Huang Rui <ray.huang@....com>,
        Guenter Roeck <linux@...ck-us.net>,
        Steve Wahl <steve.wahl@....com>,
        Mike Travis <mike.travis@....com>,
        Dimitri Sivanich <dimitri.sivanich@....com>,
        Russ Anderson <russ.anderson@....com>
Subject: [patch 25/29] x86/cpu: Make topology_amd_node_id() use the actual
 node info

Now that everything is converted switch it over and remove the intermediate
operation.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 arch/x86/include/asm/topology.h       |    4 ++--
 arch/x86/kernel/cpu/topology_common.c |    7 ++-----
 2 files changed, 4 insertions(+), 7 deletions(-)

--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -136,7 +136,7 @@ extern const struct cpumask *cpu_cluster
 #define topology_core_id(cpu)			(cpu_data(cpu).topo.core_id)
 #define topology_ppin(cpu)			(cpu_data(cpu).ppin)
 
-#define topology_amd_node_id(cpu)		(cpu_data(cpu).topo.die_id)
+#define topology_amd_node_id(cpu)		(cpu_data(cpu).topo.amd_node_id)
 
 extern unsigned int __max_die_per_package;
 
@@ -171,7 +171,7 @@ extern unsigned int __amd_nodes_per_pkg;
 
 static inline unsigned int topology_amd_nodes_per_pkg(void)
 {
-	return __max_die_per_package;
+	return __amd_nodes_per_pkg;
 }
 
 extern struct cpumask __cpu_primary_thread_mask;
--- a/arch/x86/kernel/cpu/topology_common.c
+++ b/arch/x86/kernel/cpu/topology_common.c
@@ -143,9 +143,7 @@ static void topo_set_ids(struct topo_sca
 	/* Relative core ID */
 	c->topo.core_id = topo_relative_domain_id(apicid, TOPO_CORE_DOMAIN);
 
-	/* Temporary workaround */
-	if (tscan->amd_nodes_per_pkg)
-		c->topo.amd_node_id = c->topo.die_id = tscan->amd_node_id;
+	c->topo.amd_node_id = tscan->amd_node_id;
 
 	if (c->x86_vendor == X86_VENDOR_AMD)
 		cpu_topology_fixup_amd(tscan);
@@ -231,6 +229,5 @@ void __init cpu_init_topology(struct cpu
 	 * AMD systems have Nodes per package which cannot be mapped to
 	 * APIC ID (yet).
 	 */
-	if (c->x86_vendor == X86_VENDOR_AMD || c->x86_vendor == X86_VENDOR_HYGON)
-		__amd_nodes_per_pkg = __max_die_per_package = tscan.amd_nodes_per_pkg;
+	__amd_nodes_per_pkg = tscan.amd_nodes_per_pkg;
 }