From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756275AbcC2Itv (ORCPT ); Tue, 29 Mar 2016 04:49:51 -0400 Received: from terminus.zytor.com ([198.137.202.10]:44376 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756046AbcC2Itr (ORCPT ); Tue, 29 Mar 2016 04:49:47 -0400 Date: Tue, 29 Mar 2016 01:49:34 -0700 From: tip-bot for Borislav Petkov Message-ID: Cc: bp@suse.de, tglx@linutronix.de, mingo@kernel.org, linux-kernel@vger.kernel.org, hpa@zytor.com Reply-To: tglx@linutronix.de, mingo@kernel.org, linux-kernel@vger.kernel.org, hpa@zytor.com, bp@suse.de In-Reply-To: <1458917557-8757-3-git-send-email-bp@alien8.de> References: <1458917557-8757-3-git-send-email-bp@alien8.de> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/urgent] x86/cpu: Get rid of compute_unit_id Git-Commit-ID: 8196dab4fc159943df6baaac04973bb1accb7100 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 8196dab4fc159943df6baaac04973bb1accb7100 Gitweb: http://git.kernel.org/tip/8196dab4fc159943df6baaac04973bb1accb7100 Author: Borislav Petkov AuthorDate: Fri, 25 Mar 2016 15:52:36 +0100 Committer: Thomas Gleixner CommitDate: Tue, 29 Mar 2016 10:45:04 +0200 x86/cpu: Get rid of compute_unit_id It is cpu_core_id anyway. Signed-off-by: Borislav Petkov Link: http://lkml.kernel.org/r/1458917557-8757-3-git-send-email-bp@alien8.de Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/processor.h | 2 -- arch/x86/kernel/amd_nb.c | 6 ++---- arch/x86/kernel/cpu/amd.c | 10 +++------- arch/x86/kernel/smpboot.c | 2 +- 4 files changed, 6 insertions(+), 14 deletions(-) diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 983738a..9264476 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -132,8 +132,6 @@ struct cpuinfo_x86 { u16 logical_proc_id; /* Core id: */ u16 cpu_core_id; - /* Compute unit id */ - u8 compute_unit_id; /* Index into per_cpu list: */ u16 cpu_index; u32 microcode; diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c index 29fa475..a147e67 100644 --- a/arch/x86/kernel/amd_nb.c +++ b/arch/x86/kernel/amd_nb.c @@ -170,15 +170,13 @@ int amd_get_subcaches(int cpu) { struct pci_dev *link = node_to_amd_nb(amd_get_nb_id(cpu))->link; unsigned int mask; - int cuid; if (!amd_nb_has_feature(AMD_NB_L3_PARTITIONING)) return 0; pci_read_config_dword(link, 0x1d4, &mask); - cuid = cpu_data(cpu).compute_unit_id; - return (mask >> (4 * cuid)) & 0xf; + return (mask >> (4 * cpu_data(cpu).cpu_core_id)) & 0xf; } int amd_set_subcaches(int cpu, unsigned long mask) @@ -204,7 +202,7 @@ int amd_set_subcaches(int cpu, unsigned long mask) pci_write_config_dword(nb->misc, 0x1b8, reg & ~0x180000); } - cuid = cpu_data(cpu).compute_unit_id; + cuid = cpu_data(cpu).cpu_core_id; mask <<= 4 * cuid; mask |= (0xf ^ (1 << cuid)) << 26; diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 4d0087f..7b76eb6 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -300,7 +300,6 @@ static int nearby_node(int apicid) #ifdef CONFIG_SMP static void amd_get_topology(struct cpuinfo_x86 *c) { - u32 cores_per_cu = 1; u8 node_id; int cpu = smp_processor_id(); @@ -312,9 +311,9 @@ static void amd_get_topology(struct cpuinfo_x86 *c) node_id = ecx & 7; /* get compute unit information */ - cores_per_cu = smp_num_siblings = ((ebx >> 8) & 3) + 1; + smp_num_siblings = ((ebx >> 8) & 3) + 1; c->x86_max_cores /= smp_num_siblings; - c->compute_unit_id = ebx & 0xff; + c->cpu_core_id = ebx & 0xff; } else if (cpu_has(c, X86_FEATURE_NODEID_MSR)) { u64 value; @@ -325,19 +324,16 @@ static void amd_get_topology(struct cpuinfo_x86 *c) /* fixup multi-node processor information */ if (nodes_per_socket > 1) { - u32 cores_per_node; u32 cus_per_node; set_cpu_cap(c, X86_FEATURE_AMD_DCM); cus_per_node = c->x86_max_cores / nodes_per_socket; - cores_per_node = cus_per_node * cores_per_cu; /* store NodeID, use llc_shared_map to store sibling info */ per_cpu(cpu_llc_id, cpu) = node_id; /* core id has to be in the [0 .. cores_per_node - 1] range */ - c->cpu_core_id %= cores_per_node; - c->compute_unit_id %= cus_per_node; + c->cpu_core_id %= cus_per_node; } } #endif diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index b2c99f8..a2065d3 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -422,7 +422,7 @@ static bool match_smt(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o) if (c->phys_proc_id == o->phys_proc_id && per_cpu(cpu_llc_id, cpu1) == per_cpu(cpu_llc_id, cpu2) && - c->compute_unit_id == o->compute_unit_id) + c->cpu_core_id == o->cpu_core_id) return topology_sane(c, o, "smt"); } else if (c->phys_proc_id == o->phys_proc_id &&