From: "tip-bot2 for Thomas Gleixner" <tip-bot2@linutronix.de>
To: linux-tip-commits@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>,
Kevin Tian <kevin.tian@intel.com>, Marc Zyngier <maz@kernel.org>,
x86@kernel.org, linux-kernel@vger.kernel.org
Subject: [tip: irq/core] genirq/msi: Provide msi_match_device_domain()
Date: Mon, 05 Dec 2022 18:25:15 -0000 [thread overview]
Message-ID: <167026471551.4906.2567791541055402967.tip-bot2@tip-bot2> (raw)
In-Reply-To: <20221124232325.738047902@linutronix.de>
The following commit has been merged into the irq/core branch of tip:
Commit-ID: 26e91b75bf6108550035355c835bf0c93c885b61
Gitweb: https://git.kernel.org/tip/26e91b75bf6108550035355c835bf0c93c885b61
Author: Thomas Gleixner <tglx@linutronix.de>
AuthorDate: Fri, 25 Nov 2022 00:25:57 +01:00
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Mon, 05 Dec 2022 19:21:01 +01:00
genirq/msi: Provide msi_match_device_domain()
Provide an interface to match a per device domain bus token. This allows to
query which type of domain is installed for a particular domain id. Will be
used for PCI to avoid frequent create/remove cycles for the MSI resp. MSI-X
domains.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221124232325.738047902@linutronix.de
---
include/linux/msi.h | 3 +++
kernel/irq/msi.c | 25 +++++++++++++++++++++++++
2 files changed, 28 insertions(+)
diff --git a/include/linux/msi.h b/include/linux/msi.h
index ef46a3e..b4ab005 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -553,6 +553,9 @@ bool msi_create_device_irq_domain(struct device *dev, unsigned int domid,
void *chip_data);
void msi_remove_device_irq_domain(struct device *dev, unsigned int domid);
+bool msi_match_device_irq_domain(struct device *dev, unsigned int domid,
+ enum irq_domain_bus_token bus_token);
+
int msi_domain_alloc_irqs_range_locked(struct device *dev, unsigned int domid,
unsigned int first, unsigned int last);
int msi_domain_alloc_irqs_range(struct device *dev, unsigned int domid,
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index 8b415bd..7449998 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -986,6 +986,31 @@ unlock:
msi_unlock_descs(dev);
}
+/**
+ * msi_match_device_irq_domain - Match a device irq domain against a bus token
+ * @dev: Pointer to the device
+ * @domid: Domain id
+ * @bus_token: Bus token to match against the domain bus token
+ *
+ * Return: True if device domain exists and bus tokens match.
+ */
+bool msi_match_device_irq_domain(struct device *dev, unsigned int domid,
+ enum irq_domain_bus_token bus_token)
+{
+ struct msi_domain_info *info;
+ struct irq_domain *domain;
+ bool ret = false;
+
+ msi_lock_descs(dev);
+ domain = msi_get_device_domain(dev, domid);
+ if (domain && irq_domain_is_msi_device(domain)) {
+ info = domain->host_data;
+ ret = info->bus_token == bus_token;
+ }
+ msi_unlock_descs(dev);
+ return ret;
+}
+
int msi_domain_prepare_irqs(struct irq_domain *domain, struct device *dev,
int nvec, msi_alloc_info_t *arg)
{
next prev parent reply other threads:[~2022-12-05 18:26 UTC|newest]
Thread overview: 126+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-24 23:25 [patch V3 00/33] genirq, PCI/MSI: Support for per device MSI and PCI/IMS - Part 3 implementation Thomas Gleixner
2022-11-24 23:25 ` [patch V3 01/33] genirq/msi: Rearrange MSI domain flags Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:25 ` [patch V3 02/33] genirq/msi: Provide struct msi_parent_ops Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:25 ` [patch V3 03/33] genirq/msi: Provide data structs for per device domains Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:25 ` [patch V3 04/33] genirq/msi: Add size info to struct msi_domain_info Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:25 ` [patch V3 05/33] genirq/msi: Split msi_create_irq_domain() Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:25 ` [patch V3 06/33] genirq/irqdomain: Add irq_domain::dev for per device MSI domains Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] genirq/irqdomain: Add irq_domain:: Dev " tip-bot2 for Thomas Gleixner
2022-11-24 23:25 ` [patch V3 07/33] genirq/msi: Provide msi_create/free_device_irq_domain() Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-11-24 23:25 ` [patch V3 08/33] genirq/msi: Provide msi_match_device_domain() Thomas Gleixner
2022-12-05 18:25 ` tip-bot2 for Thomas Gleixner [this message]
2022-11-24 23:25 ` [patch V3 09/33] genirq/msi: Add range checking to msi_insert_desc() Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-12-13 19:04 ` [patch V3 09/33] " Guenter Roeck
2022-12-14 9:42 ` Niklas Schnelle
2022-12-15 14:49 ` Thomas Gleixner
2022-12-15 16:23 ` Matthew Rosato
2022-12-15 21:32 ` Guenter Roeck
2022-12-16 9:53 ` Marc Zyngier
2022-12-16 13:50 ` Matthew Rosato
2022-12-16 13:58 ` Marc Zyngier
2022-12-16 14:03 ` Marc Zyngier
2022-12-16 14:11 ` Matthew Rosato
2022-12-16 17:30 ` Marc Zyngier
2022-12-16 15:47 ` Guenter Roeck
2022-12-17 0:45 ` Guenter Roeck
2022-12-17 10:46 ` Marc Zyngier
2022-12-17 13:36 ` Guenter Roeck
2023-02-20 17:11 ` [REGRESSION] " Russell King (Oracle)
2023-02-20 18:29 ` Marc Zyngier
2023-02-20 18:43 ` Thomas Gleixner
2023-02-20 19:00 ` Russell King (Oracle)
2023-02-20 19:17 ` Russell King (Oracle)
2023-02-20 19:43 ` Andrew Lunn
2023-02-20 20:15 ` phylib locking (was: Re: [REGRESSION] Re: [patch V3 09/33] genirq/msi: Add range checking) " Russell King (Oracle)
2023-02-21 14:57 ` Russell King (Oracle)
2023-02-20 18:30 ` [REGRESSION] Re: [patch V3 09/33] genirq/msi: Add range checking " Thomas Gleixner
2022-11-24 23:26 ` [patch V3 10/33] PCI/MSI: Split __pci_write_msi_msg() Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 11/33] genirq/msi: Provide BUS_DEVICE_PCI_MSI[X] Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 12/33] PCI/MSI: Add support for per device MSI[X] domains Thomas Gleixner
2022-11-28 4:46 ` Tian, Kevin
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 13/33] x86/apic/vector: Provide MSI parent domain Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2023-01-04 12:34 ` [patch V3 13/33] " Jason Gunthorpe
2023-01-09 20:32 ` Thomas Gleixner
2023-01-10 12:14 ` Thomas Gleixner
2023-01-10 14:59 ` Jason Gunthorpe
2023-01-11 16:02 ` Kalle Valo
2023-01-11 16:35 ` Jason Gunthorpe
2023-01-11 17:07 ` Kalle Valo
2022-11-24 23:26 ` [patch V3 14/33] PCI/MSI: Remove unused pci_dev_has_special_msi_domain() Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 15/33] iommu/vt-d: Switch to MSI parent domains Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 16/33] iommu/amd: Switch to MSI base domains Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 17/33] x86/apic/msi: Remove arch_create_remap_msi_irq_domain() Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 18/33] genirq/msi: Provide struct msi_map Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 19/33] genirq/msi: Provide msi_desc::msi_data Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] genirq/msi: Provide msi_desc:: Msi_data tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 20/33] genirq/msi: Provide msi_domain_ops::prepare_desc() Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] genirq/msi: Provide msi_domain_ops:: Prepare_desc() tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 21/33] genirq/msi: Provide msi_domain_alloc_irq_at() Thomas Gleixner
2022-11-28 14:39 ` Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 22/33] genirq/msi: Provide MSI_FLAG_MSIX_ALLOC_DYN Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 23/33] PCI/MSI: Split MSI-X descriptor setup Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 24/33] PCI/MSI: Provide prepare_desc() MSI domain op Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 25/33] PCI/MSI: Provide post-enable dynamic allocation interfaces for MSI-X Thomas Gleixner
2022-11-24 23:26 ` [patch V3 26/33] x86/apic/msi: Enable MSI_FLAG_PCI_MSIX_ALLOC_DYN Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 27/33] genirq/msi: Provide constants for PCI/IMS support Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 28/33] PCI/MSI: Provide IMS (Interrupt Message Store) support Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2024-03-27 16:32 ` [patch V3 28/33] " Bjorn Helgaas
2024-03-29 1:41 ` Tian, Kevin
2022-11-24 23:26 ` [patch V3 29/33] PCI/MSI: Provide pci_ims_alloc/free_irq() Thomas Gleixner
2022-11-28 4:47 ` Tian, Kevin
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 30/33] x86/apic/msi: Enable PCI/IMS Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 31/33] iommu/vt-d: " Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 32/33] iommu/amd: " Thomas Gleixner
2022-12-05 18:25 ` [tip: irq/core] " tip-bot2 for Thomas Gleixner
2022-12-05 21:41 ` tip-bot2 for Thomas Gleixner
2022-11-24 23:26 ` [patch V3 33/33] irqchip: Add IDXD Interrupt Message Store driver Thomas Gleixner
2022-11-28 4:50 ` [patch V3 00/33] genirq, PCI/MSI: Support for per device MSI and PCI/IMS - Part 3 implementation Tian, Kevin
2022-12-05 11:07 ` Marc Zyngier
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=167026471551.4906.2567791541055402967.tip-bot2@tip-bot2 \
--to=tip-bot2@linutronix.de \
--cc=kevin.tian@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-tip-commits@vger.kernel.org \
--cc=maz@kernel.org \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
/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
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).