From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751925AbdIMVjk (ORCPT ); Wed, 13 Sep 2017 17:39:40 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:40179 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751709AbdIMVfH (ORCPT ); Wed, 13 Sep 2017 17:35:07 -0400 Message-Id: <20170913213155.030264903@linutronix.de> User-Agent: quilt/0.63-1 Date: Wed, 13 Sep 2017 23:29:37 +0200 From: Thomas Gleixner To: LKML Cc: Ingo Molnar , Peter Anvin , Marc Zyngier , Peter Zijlstra , Borislav Petkov , Chen Yu , Rui Zhang , "Rafael J. Wysocki" , Len Brown , Dan Williams , Christoph Hellwig , Paolo Bonzini , Joerg Roedel , Boris Ostrovsky , Juergen Gross , Tony Luck , "K. Y. Srinivasan" , Alok Kataria , Steven Rostedt , Arjan van de Ven Subject: [patch 35/52] x86/apic: Add replacement for cpu_mask_to_apicid() References: <20170913212902.530704676@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Disposition: inline; filename=x86-apic--Add-replacement-for-cpu_mask_to_apicid--.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org As preparation for replacing the vector allocator, provide a new function which takes a cpu number instead of a cpu mask to calculate/lookup the resulting APIC destination id. Signed-off-by: Thomas Gleixner --- arch/x86/include/asm/apic.h | 5 +++++ arch/x86/kernel/apic/apic_common.c | 10 ++++++++++ arch/x86/kernel/apic/apic_flat_64.c | 2 ++ arch/x86/kernel/apic/apic_noop.c | 1 + arch/x86/kernel/apic/apic_numachip.c | 2 ++ arch/x86/kernel/apic/bigsmp_32.c | 1 + arch/x86/kernel/apic/probe_32.c | 1 + arch/x86/kernel/apic/x2apic_cluster.c | 6 ++++++ arch/x86/kernel/apic/x2apic_phys.c | 1 + arch/x86/kernel/apic/x2apic_uv_x.c | 6 ++++++ arch/x86/xen/apic.c | 1 + 11 files changed, 36 insertions(+) --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -294,6 +294,7 @@ struct apic { int (*cpu_mask_to_apicid)(const struct cpumask *cpumask, struct irq_data *irqdata, unsigned int *apicid); + u32 (*calc_dest_apicid)(unsigned int cpu); /* ICR related functions */ u64 (*icr_read)(void); @@ -477,6 +478,10 @@ static inline unsigned int read_apic_id( extern int default_apic_id_valid(int apicid); extern int default_acpi_madt_oem_check(char *, char *); extern void default_setup_apic_routing(void); + +extern u32 apic_default_calc_apicid(unsigned int cpu); +extern u32 apic_flat_calc_apicid(unsigned int cpu); + extern int flat_cpu_mask_to_apicid(const struct cpumask *cpumask, struct irq_data *irqdata, unsigned int *apicid); --- a/arch/x86/kernel/apic/apic_common.c +++ b/arch/x86/kernel/apic/apic_common.c @@ -6,6 +6,11 @@ #include #include +u32 apic_default_calc_apicid(unsigned int cpu) +{ + return per_cpu(x86_cpu_to_apicid, cpu); +} + int default_cpu_mask_to_apicid(const struct cpumask *msk, struct irq_data *irqd, unsigned int *apicid) { @@ -18,6 +23,11 @@ int default_cpu_mask_to_apicid(const str return 0; } +u32 apic_flat_calc_apicid(unsigned int cpu) +{ + return 1U << cpu; +} + int flat_cpu_mask_to_apicid(const struct cpumask *mask, struct irq_data *irqd, unsigned int *apicid) --- a/arch/x86/kernel/apic/apic_flat_64.c +++ b/arch/x86/kernel/apic/apic_flat_64.c @@ -172,6 +172,7 @@ static struct apic apic_flat __ro_after_ .set_apic_id = set_apic_id, .cpu_mask_to_apicid = flat_cpu_mask_to_apicid, + .calc_dest_apicid = apic_flat_calc_apicid, .send_IPI = default_send_IPI_single, .send_IPI_mask = flat_send_IPI_mask, @@ -267,6 +268,7 @@ static struct apic apic_physflat __ro_af .set_apic_id = set_apic_id, .cpu_mask_to_apicid = default_cpu_mask_to_apicid, + .calc_dest_apicid = apic_default_calc_apicid, .send_IPI = default_send_IPI_single_phys, .send_IPI_mask = default_send_IPI_mask_sequence_phys, --- a/arch/x86/kernel/apic/apic_noop.c +++ b/arch/x86/kernel/apic/apic_noop.c @@ -142,6 +142,7 @@ struct apic apic_noop __ro_after_init = .set_apic_id = NULL, .cpu_mask_to_apicid = flat_cpu_mask_to_apicid, + .calc_dest_apicid = apic_flat_calc_apicid, .send_IPI = noop_send_IPI, .send_IPI_mask = noop_send_IPI_mask, --- a/arch/x86/kernel/apic/apic_numachip.c +++ b/arch/x86/kernel/apic/apic_numachip.c @@ -267,6 +267,7 @@ static const struct apic apic_numachip1 .set_apic_id = numachip1_set_apic_id, .cpu_mask_to_apicid = default_cpu_mask_to_apicid, + .calc_dest_apicid = apic_default_calc_apicid, .send_IPI = numachip_send_IPI_one, .send_IPI_mask = numachip_send_IPI_mask, @@ -317,6 +318,7 @@ static const struct apic apic_numachip2 .set_apic_id = numachip2_set_apic_id, .cpu_mask_to_apicid = default_cpu_mask_to_apicid, + .calc_dest_apicid = apic_default_calc_apicid, .send_IPI = numachip_send_IPI_one, .send_IPI_mask = numachip_send_IPI_mask, --- a/arch/x86/kernel/apic/bigsmp_32.c +++ b/arch/x86/kernel/apic/bigsmp_32.c @@ -172,6 +172,7 @@ static struct apic apic_bigsmp __ro_afte .set_apic_id = NULL, .cpu_mask_to_apicid = default_cpu_mask_to_apicid, + .calc_dest_apicid = apic_default_calc_apicid, .send_IPI = default_send_IPI_single_phys, .send_IPI_mask = default_send_IPI_mask_sequence_phys, --- a/arch/x86/kernel/apic/probe_32.c +++ b/arch/x86/kernel/apic/probe_32.c @@ -127,6 +127,7 @@ static struct apic apic_default __ro_aft .set_apic_id = NULL, .cpu_mask_to_apicid = flat_cpu_mask_to_apicid, + .calc_dest_apicid = apic_flat_calc_apicid, .send_IPI = default_send_IPI_single, .send_IPI_mask = default_send_IPI_mask_logical, --- a/arch/x86/kernel/apic/x2apic_cluster.c +++ b/arch/x86/kernel/apic/x2apic_cluster.c @@ -114,6 +114,11 @@ x2apic_cpu_mask_to_apicid(const struct c return 0; } +static u32 x2apic_calc_apicid(unsigned int cpu) +{ + return per_cpu(x86_cpu_to_logical_apicid, cpu); +} + static void init_x2apic_ldr(void) { struct cluster_mask *cmsk = this_cpu_read(cluster_masks); @@ -245,6 +250,7 @@ static struct apic apic_x2apic_cluster _ .set_apic_id = x2apic_set_apic_id, .cpu_mask_to_apicid = x2apic_cpu_mask_to_apicid, + .calc_dest_apicid = x2apic_calc_apicid, .send_IPI = x2apic_send_IPI, .send_IPI_mask = x2apic_send_IPI_mask, --- a/arch/x86/kernel/apic/x2apic_phys.c +++ b/arch/x86/kernel/apic/x2apic_phys.c @@ -165,6 +165,7 @@ static struct apic apic_x2apic_phys __ro .set_apic_id = x2apic_set_apic_id, .cpu_mask_to_apicid = default_cpu_mask_to_apicid, + .calc_dest_apicid = apic_default_calc_apicid, .send_IPI = x2apic_send_IPI, .send_IPI_mask = x2apic_send_IPI_mask, --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -537,6 +537,11 @@ uv_cpu_mask_to_apicid(const struct cpuma return ret; } +static u32 apic_uv_calc_apicid(unsigned int cpu) +{ + return apic_default_calc_apicid(cpu) | uv_apicid_hibits; +} + static unsigned int x2apic_get_apic_id(unsigned long x) { unsigned int id; @@ -602,6 +607,7 @@ static struct apic apic_x2apic_uv_x __ro .set_apic_id = set_apic_id, .cpu_mask_to_apicid = uv_cpu_mask_to_apicid, + .calc_dest_apicid = apic_uv_calc_apicid, .send_IPI = uv_send_IPI_one, .send_IPI_mask = uv_send_IPI_mask, --- a/arch/x86/xen/apic.c +++ b/arch/x86/xen/apic.c @@ -178,6 +178,7 @@ static struct apic xen_pv_apic = { .set_apic_id = xen_set_apic_id, /* Can be NULL on 32-bit. */ .cpu_mask_to_apicid = flat_cpu_mask_to_apicid, + .calc_dest_apicid = apic_flat_calc_apicid, #ifdef CONFIG_SMP .send_IPI_mask = xen_send_IPI_mask,