LKML Archive on lore.kernel.org
 help / color / Atom feed
From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Ingo Molnar <mingo@kernel.org>, Peter Anvin <hpa@zytor.com>,
	Borislav Petkov <borislav.petkov@amd.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Mike Travis <travis@sgi.com>,
	Daniel J Blueman <daniel@numascale.com>
Subject: [patch 12/14] x86/apic: Provide default send single IPI wrapper
Date: Wed, 04 Nov 2015 22:57:07 -0000
Message-ID: <20151104220849.631111846@linutronix.de> (raw)
In-Reply-To: <20151104215716.810356093@linutronix.de>


[-- Attachment #0: x86-apic--Provide-default-send-single-IPI-wrapper --]
[-- Type: text/plain, Size: 1336 bytes --]

Instead of doing the wrapping in the smp code we can provide a default
wrapper for those APICs which insist on cpumasks.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/include/asm/ipi.h |    1 +
 arch/x86/kernel/apic/ipi.c |    8 ++++++++
 2 files changed, 9 insertions(+)

Index: linux/arch/x86/include/asm/ipi.h
===================================================================
--- linux.orig/arch/x86/include/asm/ipi.h
+++ linux/arch/x86/include/asm/ipi.h
@@ -119,6 +119,7 @@ static inline void
 	native_apic_mem_write(APIC_ICR, cfg);
 }
 
+extern void default_send_IPI_single(int cpu, int vector);
 extern void default_send_IPI_single_phys(int cpu, int vector);
 extern void default_send_IPI_mask_sequence_phys(const struct cpumask *mask,
 						 int vector);
Index: linux/arch/x86/kernel/apic/ipi.c
===================================================================
--- linux.orig/arch/x86/kernel/apic/ipi.c
+++ linux/arch/x86/kernel/apic/ipi.c
@@ -65,6 +65,14 @@ void default_send_IPI_mask_allbutself_ph
 	local_irq_restore(flags);
 }
 
+/*
+ * Helper function for APICs which insist on cpumasks
+ */
+void default_send_IPI_single(int cpu, int vector)
+{
+	apic->send_IPI_mask(cpumask_of(cpu), vector);
+}
+
 #ifdef CONFIG_X86_32
 
 void default_send_IPI_mask_sequence_logical(const struct cpumask *mask,



  parent reply index

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-04 22:56 [patch 00/14] x86/apic: Implement single target IPI callback Thomas Gleixner
2015-11-04 22:57 ` [patch 01/14] x86/apic: Add a single-target IPI function to the apic Thomas Gleixner
2015-11-05 14:42   ` [tip:x86/apic] " tip-bot for Linus Torvalds
2015-11-04 22:57 ` [patch 02/14] x86/apic: Implement single target IPI function for x2apic_cluster Thomas Gleixner
2015-11-05  6:38   ` Ingo Molnar
2015-11-05  6:46     ` Linus Torvalds
2015-11-05  8:04       ` Thomas Gleixner
2015-11-05 14:43   ` [tip:x86/apic] " tip-bot for Linus Torvalds
2015-11-04 22:57 ` [patch 03/14] x86/apic: Implement default single target IPI function Thomas Gleixner
2015-11-05 14:43   ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2015-11-04 22:57 ` [patch 04/14] x86/apic: Remove pointless indirections from apic_physflat Thomas Gleixner
2015-11-05 14:43   ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2015-11-04 22:57 ` [patch 05/14] x86/apic: Wire up single IPI for apic_physflat Thomas Gleixner
2015-11-05 14:44   ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2015-11-04 22:57 ` [patch 06/14] x86/apic: Remove pointless indirections from bigsmp_apic Thomas Gleixner
2015-11-05 14:44   ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2015-11-04 22:57 ` [patch 07/14] x86/apic: Wire up single IPI for bigsmp_apic Thomas Gleixner
2015-11-05 14:44   ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2015-11-04 22:57 ` [patch 08/14] x86/apic: Implement single IPI for x2apic_phys Thomas Gleixner
2015-11-05 14:45   ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2015-11-04 22:57 ` [patch 09/14] x86/apic: Wire up single IPI for x2apic_uv Thomas Gleixner
2015-11-05 14:45   ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2015-11-04 22:57 ` [patch 10/14] x86/apic: Implement single IPI for apic_noop Thomas Gleixner
2015-11-05 14:46   ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2015-11-04 22:57 ` [patch 11/14] x86/apic: Wire up single IPI for apic_numachip Thomas Gleixner
2015-11-05 14:45   ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2015-11-04 22:57 ` Thomas Gleixner [this message]
2015-11-05 14:46   ` [tip:x86/apic] x86/apic: Provide default send single IPI wrapper tip-bot for Thomas Gleixner
2015-11-04 22:57 ` [patch 13/14] x86/apic: Use " Thomas Gleixner
2015-11-05 14:46   ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2015-11-04 22:57 ` [patch 14/14] x86/smp: Remove " Thomas Gleixner
2015-11-05 14:47   ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2015-11-04 22:59 ` [patch 00/14] x86/apic: Implement single target IPI callback Linus Torvalds
2015-11-05  8:17   ` Thomas Gleixner

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20151104220849.631111846@linutronix.de \
    --to=tglx@linutronix.de \
    --cc=borislav.petkov@amd.com \
    --cc=daniel@numascale.com \
    --cc=hpa@zytor.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@kernel.org \
    --cc=peterz@infradead.org \
    --cc=torvalds@linux-foundation.org \
    --cc=travis@sgi.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

LKML Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/lkml/0 lkml/git/0.git
	git clone --mirror https://lore.kernel.org/lkml/1 lkml/git/1.git
	git clone --mirror https://lore.kernel.org/lkml/2 lkml/git/2.git
	git clone --mirror https://lore.kernel.org/lkml/3 lkml/git/3.git
	git clone --mirror https://lore.kernel.org/lkml/4 lkml/git/4.git
	git clone --mirror https://lore.kernel.org/lkml/5 lkml/git/5.git
	git clone --mirror https://lore.kernel.org/lkml/6 lkml/git/6.git
	git clone --mirror https://lore.kernel.org/lkml/7 lkml/git/7.git
	git clone --mirror https://lore.kernel.org/lkml/8 lkml/git/8.git
	git clone --mirror https://lore.kernel.org/lkml/9 lkml/git/9.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 lkml lkml/ https://lore.kernel.org/lkml \
		linux-kernel@vger.kernel.org
	public-inbox-index lkml

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-kernel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git