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From: tip-bot for Thomas Gleixner <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: hch@lst.de, tglx@linutronix.de, marc.zyngier@arm.com,
	mpe@ellerman.id.au, peterz@infradead.org,
	linux-kernel@vger.kernel.org, hpa@zytor.com, axboe@kernel.dk,
	mingo@kernel.org, keith.busch@intel.com
Subject: [tip:irq/core] x86/apic: Add irq_data argument to apic->cpu_mask_to_apicid()
Date: Thu, 22 Jun 2017 10:04:43 -0700
Message-ID: <tip-0e24f7c9f67e218546ad44160d2a12d9d8be0171@git.kernel.org> (raw)
In-Reply-To: <20170619235446.720739075@linutronix.de>

Commit-ID:  0e24f7c9f67e218546ad44160d2a12d9d8be0171
Gitweb:     http://git.kernel.org/tip/0e24f7c9f67e218546ad44160d2a12d9d8be0171
Author:     Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Tue, 20 Jun 2017 01:37:44 +0200
Committer:  Thomas Gleixner <tglx@linutronix.de>
CommitDate: Thu, 22 Jun 2017 18:21:22 +0200

x86/apic: Add irq_data argument to apic->cpu_mask_to_apicid()

The decision to which CPUs an interrupt is effectively routed happens in
the various apic->cpu_mask_to_apicid() implementations

To support effective affinity masks this information needs to be updated in
irq_data. Add a pointer to irq_data to the callbacks and feed it through
the call chain.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Link: http://lkml.kernel.org/r/20170619235446.720739075@linutronix.de

---
 arch/x86/include/asm/apic.h           |  5 +++++
 arch/x86/kernel/apic/apic.c           |  9 +++++++--
 arch/x86/kernel/apic/vector.c         | 25 +++++++++++++++----------
 arch/x86/kernel/apic/x2apic_cluster.c |  3 ++-
 arch/x86/kernel/apic/x2apic_uv_x.c    |  5 +++--
 5 files changed, 32 insertions(+), 15 deletions(-)

diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 3e64e99..5f01671 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -252,6 +252,8 @@ static inline int x2apic_enabled(void) { return 0; }
 #define	x2apic_supported()	(0)
 #endif /* !CONFIG_X86_X2APIC */
 
+struct irq_data;
+
 /*
  * Copyright 2004 James Cleverdon, IBM.
  * Subject to the GNU Public License, v.2
@@ -297,6 +299,7 @@ struct apic {
 	unsigned long (*set_apic_id)(unsigned int id);
 
 	int (*cpu_mask_to_apicid)(const struct cpumask *cpumask,
+				  struct irq_data *irqdata,
 				  unsigned int *apicid);
 
 	/* ipi */
@@ -540,8 +543,10 @@ static inline int default_phys_pkg_id(int cpuid_apic, int index_msb)
 #endif
 
 extern int flat_cpu_mask_to_apicid(const struct cpumask *cpumask,
+				   struct irq_data *irqdata,
 				   unsigned int *apicid);
 extern int default_cpu_mask_to_apicid(const struct cpumask *cpumask,
+				      struct irq_data *irqdata,
 				      unsigned int *apicid);
 
 static inline void
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 169dd42..14e5a47 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -2201,7 +2201,9 @@ void default_init_apic_ldr(void)
 	apic_write(APIC_LDR, val);
 }
 
-int default_cpu_mask_to_apicid(const struct cpumask *mask, unsigned int *apicid)
+int default_cpu_mask_to_apicid(const struct cpumask *mask,
+			       struct irq_data *irqdata,
+			       unsigned int *apicid)
 {
 	unsigned int cpu = cpumask_first(mask);
 
@@ -2211,7 +2213,10 @@ int default_cpu_mask_to_apicid(const struct cpumask *mask, unsigned int *apicid)
 	return 0;
 }
 
-int flat_cpu_mask_to_apicid(const struct cpumask *mask, unsigned int *apicid)
+int flat_cpu_mask_to_apicid(const struct cpumask *mask,
+			    struct irq_data *irqdata,
+			    unsigned int *apicid)
+
 {
 	unsigned long cpu_mask = cpumask_bits(mask)[0] & APIC_ALL_CPUS;
 
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 1f57f5a..b270a76 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -103,7 +103,8 @@ static void free_apic_chip_data(struct apic_chip_data *data)
 }
 
 static int __assign_irq_vector(int irq, struct apic_chip_data *d,
-			       const struct cpumask *mask)
+			       const struct cpumask *mask,
+			       struct irq_data *irqdata)
 {
 	/*
 	 * NOTE! The local APIC isn't very good at handling
@@ -226,32 +227,35 @@ success:
 	 * cpus masked out.
 	 */
 	cpumask_and(vector_searchmask, vector_searchmask, mask);
-	BUG_ON(apic->cpu_mask_to_apicid(vector_searchmask, &d->cfg.dest_apicid));
+	BUG_ON(apic->cpu_mask_to_apicid(vector_searchmask, irqdata,
+					&d->cfg.dest_apicid));
 	return 0;
 }
 
 static int assign_irq_vector(int irq, struct apic_chip_data *data,
-			     const struct cpumask *mask)
+			     const struct cpumask *mask,
+			     struct irq_data *irqdata)
 {
 	int err;
 	unsigned long flags;
 
 	raw_spin_lock_irqsave(&vector_lock, flags);
-	err = __assign_irq_vector(irq, data, mask);
+	err = __assign_irq_vector(irq, data, mask, irqdata);
 	raw_spin_unlock_irqrestore(&vector_lock, flags);
 	return err;
 }
 
 static int assign_irq_vector_policy(int irq, int node,
 				    struct apic_chip_data *data,
-				    struct irq_alloc_info *info)
+				    struct irq_alloc_info *info,
+				    struct irq_data *irqdata)
 {
 	if (info && info->mask)
-		return assign_irq_vector(irq, data, info->mask);
+		return assign_irq_vector(irq, data, info->mask, irqdata);
 	if (node != NUMA_NO_NODE &&
-	    assign_irq_vector(irq, data, cpumask_of_node(node)) == 0)
+	    assign_irq_vector(irq, data, cpumask_of_node(node), irqdata) == 0)
 		return 0;
-	return assign_irq_vector(irq, data, apic->target_cpus());
+	return assign_irq_vector(irq, data, apic->target_cpus(), irqdata);
 }
 
 static void clear_irq_vector(int irq, struct apic_chip_data *data)
@@ -363,7 +367,8 @@ static int x86_vector_alloc_irqs(struct irq_domain *domain, unsigned int virq,
 		irq_data->chip = &lapic_controller;
 		irq_data->chip_data = data;
 		irq_data->hwirq = virq + i;
-		err = assign_irq_vector_policy(virq + i, node, data, info);
+		err = assign_irq_vector_policy(virq + i, node, data, info,
+					       irq_data);
 		if (err)
 			goto error;
 	}
@@ -537,7 +542,7 @@ static int apic_set_affinity(struct irq_data *irq_data,
 	if (!cpumask_intersects(dest, cpu_online_mask))
 		return -EINVAL;
 
-	err = assign_irq_vector(irq, data, dest);
+	err = assign_irq_vector(irq, data, dest, irq_data);
 	return err ? err : IRQ_SET_MASK_OK;
 }
 
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index 6147425..305031e 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -104,7 +104,8 @@ static void x2apic_send_IPI_all(int vector)
 }
 
 static int
-x2apic_cpu_mask_to_apicid(const struct cpumask *mask, unsigned int *apicid)
+x2apic_cpu_mask_to_apicid(const struct cpumask *mask, struct irq_data *irqdata,
+			  unsigned int *apicid)
 {
 	unsigned int cpu;
 	u32 dest = 0;
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index ad0223f..0d57bb9 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -526,9 +526,10 @@ static void uv_init_apic_ldr(void)
 }
 
 static int
-uv_cpu_mask_to_apicid(const struct cpumask *mask, unsigned int *apicid)
+uv_cpu_mask_to_apicid(const struct cpumask *mask, struct irq_data *irqdata,
+		      unsigned int *apicid)
 {
-	int ret = default_cpu_mask_to_apicid(mask, apicid);
+	int ret = default_cpu_mask_to_apicid(mask, irqdata, apicid);
 
 	if (!ret)
 		*apicid |= uv_apicid_hibits;

  reply index

Thread overview: 122+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-19 23:37 [patch 00/55] genirq: Debuggability, consolidation and managed affinities Thomas Gleixner
2017-06-19 23:37 ` [patch 01/55] x86/apic: Add name to irq chip Thomas Gleixner
2017-06-22 16:40   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 02/55] iommu/amd: " Thomas Gleixner
2017-06-21 15:51   ` Joerg Roedel
2017-06-22 16:40   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 03/55] iommu/vt-d: " Thomas Gleixner
2017-06-21 15:51   ` Joerg Roedel
2017-06-22 16:41   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 04/55] genirq/msi: Prevent overwriting domain name Thomas Gleixner
2017-06-22 16:41   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 05/55] genirq: Allow fwnode to carry name information only Thomas Gleixner
2017-06-22 16:42   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 06/55] x86/vector: Create named irq domain Thomas Gleixner
2017-06-22 16:42   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 07/55] x86/ioapic: " Thomas Gleixner
2017-06-22 16:43   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 08/55] x86/htirq: Create named domain Thomas Gleixner
2017-06-22 16:44   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 09/55] x86/uv: Create named irq domain Thomas Gleixner
2017-06-22 16:44   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 10/55] x86/msi: Provide new iommu irqdomain interface Thomas Gleixner
2017-06-22 16:45   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 11/55] iommu/vt-d: Use named irq domain interface Thomas Gleixner
2017-06-21 15:52   ` Joerg Roedel
2017-06-22 16:45   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 12/55] iommu/amd: " Thomas Gleixner
2017-06-21 15:52   ` Joerg Roedel
2017-06-22 16:46   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 13/55] x86/msi: Remove unused remap " Thomas Gleixner
2017-06-22 16:46   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 14/55] x86/msi: Create named irq domains Thomas Gleixner
2017-06-22 16:47   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 15/55] PCI: vmd: Create named irq domain Thomas Gleixner
2017-06-20 20:07   ` Keith Busch
2017-06-20 20:07     ` Thomas Gleixner
2017-06-20 20:39       ` Thomas Gleixner
2017-06-22 16:47   ` [tip:irq/core] PCI/vmd: " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 16/55] genirq/irqdomain: Add map counter Thomas Gleixner
2017-06-22 16:48   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 17/55] genirq/debugfs: Add proper debugfs interface Thomas Gleixner
2017-06-22 16:49   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 18/55] genirq: Add missing comment for IRQD_STARTED Thomas Gleixner
2017-06-22 16:49   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 19/55] genirq: Provide irq_fixup_move_pending() Thomas Gleixner
2017-06-20  4:21   ` Dou Liyang
2017-06-20  6:58     ` Thomas Gleixner
2017-06-22 16:50   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 20/55] x86/irq: Cleanup pending irq move in fixup_irqs() Thomas Gleixner
2017-06-22 16:50   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 21/55] genirq: Remove mask argument from setup_affinity() Thomas Gleixner
2017-06-22 16:51   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 22/55] genirq: Rename setup_affinity() to irq_setup_affinity() Thomas Gleixner
2017-06-22 16:52   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 23/55] genirq: Move initial affinity setup to irq_startup() Thomas Gleixner
2017-06-22 16:52   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 24/55] genirq: Move pending helpers to internal.h Thomas Gleixner
2017-06-22 16:53   ` [tip:irq/core] " tip-bot for Christoph Hellwig
2017-06-19 23:37 ` [patch 25/55] genirq/cpuhotplug: Remove irq disabling logic Thomas Gleixner
2017-06-22 16:53   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 26/55] genirq/cpuhotplug: Dont claim success on error Thomas Gleixner
2017-06-22 16:54   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 27/55] genirq/cpuhotplug: Reorder check logic Thomas Gleixner
2017-06-22 16:54   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 28/55] genirq/cpuhotplug: Do not migrated shutdown irqs Thomas Gleixner
2017-06-22 16:55   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 29/55] genirq/cpuhotplug: Add support for cleaning up move in progress Thomas Gleixner
2017-06-22 16:56   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 30/55] genirq/cpuhotplug: Add support for conditional masking Thomas Gleixner
2017-06-22 16:56   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 31/55] genirq/cpuhotplug: Set force affinity flag on hotplug migration Thomas Gleixner
2017-06-22 16:57   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 32/55] x86/irq: Restructure fixup_irqs() Thomas Gleixner
2017-06-20 21:34   ` Keith Busch
2017-06-20 21:28     ` Thomas Gleixner
2017-06-22 16:57   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 33/55] x86/irq: Use irq_migrate_all_off_this_cpu() Thomas Gleixner
2017-06-22 16:58   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 34/55] genirq: Move irq_fixup_move_pending() to core Thomas Gleixner
2017-06-22 16:58   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 35/55] genirq: Remove pointless arg from show_irq_affinity Thomas Gleixner
2017-06-22 16:59   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 36/55] genirq: Remove pointless gfp argument Thomas Gleixner
2017-06-22 17:00   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 37/55] genirq/proc: Replace ever repeating type cast Thomas Gleixner
2017-06-22 17:00   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 38/55] genirq: Introduce effective affinity mask Thomas Gleixner
2017-06-22 17:01   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 39/55] genirq/cpuhotplug: Use " Thomas Gleixner
2017-06-22 17:01   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 40/55] x86/apic: Move flat_cpu_mask_to_apicid_and() into C source Thomas Gleixner
2017-06-22 17:02   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 41/55] x86/uv: Use default_cpu_mask_to_apicid_and() Thomas Gleixner
2017-06-22 17:03   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 42/55] x86/apic: Move online masking to core code Thomas Gleixner
2017-06-22 17:03   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 43/55] x86/apic: Move cpumask and " Thomas Gleixner
2017-06-22 17:04   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 44/55] x86/apic: Add irq_data argument to apic->cpu_mask_to_apicid() Thomas Gleixner
2017-06-22 17:04   ` tip-bot for Thomas Gleixner [this message]
2017-06-19 23:37 ` [patch 45/55] xen/events: Add support for effective affinity mask Thomas Gleixner
2017-06-22 17:05   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 46/55] x86/apic: Implement effective irq mask update Thomas Gleixner
2017-06-22 17:05   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 47/55] genirq: Introduce IRQD_MANAGED_SHUTDOWN Thomas Gleixner
2017-06-22 17:06   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 48/55] genirq: Split out irq_startup() code Thomas Gleixner
2017-06-22 17:06   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 49/55] genirq: Add force argument to irq_startup() Thomas Gleixner
2017-06-22 17:07   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 50/55] genirq: Handle managed irqs gracefully in irq_startup() Thomas Gleixner
2017-06-22 17:08   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 51/55] genirq/cpuhotplug: Handle managed IRQs on CPU hotplug Thomas Gleixner
2017-06-22 17:08   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 52/55] genirq: Introduce IRQD_SINGLE_TARGET flag Thomas Gleixner
2017-06-22 17:09   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 53/55] genirq/cpuhotplug: Avoid irq affinity setting for single targets Thomas Gleixner
2017-06-22 17:09   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 54/55] x86/apic: Mark single target interrupts Thomas Gleixner
2017-06-22 17:10   ` [tip:irq/core] " tip-bot for Thomas Gleixner
2017-06-19 23:37 ` [patch 55/55] genirq/affinity: Assign vectors to all present CPUs Thomas Gleixner
2017-06-20  9:23 ` [patch 00/55] genirq: Debuggability, consolidation and managed affinities Christoph Hellwig

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