From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, Wei Liu <wei.liu@kernel.org>,
Joerg Roedel <joro@8bytes.org>,
linux-hyperv@vger.kernel.org, iommu@lists.linux-foundation.org,
"K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Jon Derrick <jonathan.derrick@intel.com>,
Lu Baolu <baolu.lu@linux.intel.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Steve Wahl <steve.wahl@hpe.com>,
Dimitri Sivanich <sivanich@hpe.com>, Russ Anderson <rja@hpe.com>,
linux-pci@vger.kernel.org, Bjorn Helgaas <bhelgaas@google.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Jonathan Derrick <jonathan.derrick@intel.com>,
Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
xen-devel@lists.xenproject.org, Juergen Gross <jgross@suse.com>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Marc Zyngier <maz@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Megha Dey <megha.dey@intel.com>,
Jason Gunthorpe <jgg@mellanox.com>,
Dave Jiang <dave.jiang@intel.com>,
Alex Williamson <alex.williamson@redhat.com>,
Jacob Pan <jacob.jun.pan@intel.com>,
Baolu Lu <baolu.lu@intel.com>, Kevin Tian <kevin.tian@intel.com>,
Dan Williams <dan.j.williams@intel.com>
Subject: [patch RFC 07/38] iommu/irq_remapping: Consolidate irq domain lookup
Date: Fri, 21 Aug 2020 02:24:31 +0200 [thread overview]
Message-ID: <20200821002945.992750750@linutronix.de> (raw)
In-Reply-To: 20200821002424.119492231@linutronix.de
[-- Attachment #1: iommu-irq_remapping--Consolidate-irq-domain-lookup.patch --]
[-- Type: text/plain, Size: 5743 bytes --]
Now that the iommu implementations handle the X86_*_GET_PARENT_DOMAIN
types, consolidate the two getter functions.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Wei Liu <wei.liu@kernel.org>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: linux-hyperv@vger.kernel.org
Cc: iommu@lists.linux-foundation.org
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Jon Derrick <jonathan.derrick@intel.com>
Cc: Lu Baolu <baolu.lu@linux.intel.com>
---
arch/x86/include/asm/irq_remapping.h | 8 --------
arch/x86/kernel/apic/io_apic.c | 2 +-
arch/x86/kernel/apic/msi.c | 2 +-
drivers/iommu/amd/iommu.c | 1 -
drivers/iommu/hyperv-iommu.c | 4 ++--
drivers/iommu/intel/irq_remapping.c | 1 -
drivers/iommu/irq_remapping.c | 23 +----------------------
drivers/iommu/irq_remapping.h | 5 +----
8 files changed, 6 insertions(+), 40 deletions(-)
--- a/arch/x86/include/asm/irq_remapping.h
+++ b/arch/x86/include/asm/irq_remapping.h
@@ -45,8 +45,6 @@ extern int irq_remap_enable_fault_handli
extern void panic_if_irq_remap(const char *msg);
extern struct irq_domain *
-irq_remapping_get_ir_irq_domain(struct irq_alloc_info *info);
-extern struct irq_domain *
irq_remapping_get_irq_domain(struct irq_alloc_info *info);
/* Create PCI MSI/MSIx irqdomain, use @parent as the parent irqdomain. */
@@ -74,12 +72,6 @@ static inline void panic_if_irq_remap(co
}
static inline struct irq_domain *
-irq_remapping_get_ir_irq_domain(struct irq_alloc_info *info)
-{
- return NULL;
-}
-
-static inline struct irq_domain *
irq_remapping_get_irq_domain(struct irq_alloc_info *info)
{
return NULL;
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2298,7 +2298,7 @@ static int mp_irqdomain_create(int ioapi
init_irq_alloc_info(&info, NULL);
info.type = X86_IRQ_ALLOC_TYPE_IOAPIC_GET_PARENT;
info.ioapic_id = mpc_ioapic_id(ioapic);
- parent = irq_remapping_get_ir_irq_domain(&info);
+ parent = irq_remapping_get_irq_domain(&info);
if (!parent)
parent = x86_vector_domain;
else
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -478,7 +478,7 @@ struct irq_domain *hpet_create_irq_domai
init_irq_alloc_info(&info, NULL);
info.type = X86_IRQ_ALLOC_TYPE_HPET_GET_PARENT;
info.hpet_id = hpet_id;
- parent = irq_remapping_get_ir_irq_domain(&info);
+ parent = irq_remapping_get_irq_domain(&info);
if (parent == NULL)
parent = x86_vector_domain;
else
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -3561,7 +3561,6 @@ struct irq_remap_ops amd_iommu_irq_ops =
.disable = amd_iommu_disable,
.reenable = amd_iommu_reenable,
.enable_faulting = amd_iommu_enable_faulting,
- .get_ir_irq_domain = get_irq_domain,
.get_irq_domain = get_irq_domain,
};
--- a/drivers/iommu/hyperv-iommu.c
+++ b/drivers/iommu/hyperv-iommu.c
@@ -182,7 +182,7 @@ static int __init hyperv_enable_irq_rema
return IRQ_REMAP_X2APIC_MODE;
}
-static struct irq_domain *hyperv_get_ir_irq_domain(struct irq_alloc_info *info)
+static struct irq_domain *hyperv_get_irq_domain(struct irq_alloc_info *info)
{
if (info->type == X86_IRQ_ALLOC_TYPE_IOAPIC_GET_PARENT)
return ioapic_ir_domain;
@@ -193,7 +193,7 @@ static struct irq_domain *hyperv_get_ir_
struct irq_remap_ops hyperv_irq_remap_ops = {
.prepare = hyperv_prepare_irq_remapping,
.enable = hyperv_enable_irq_remapping,
- .get_ir_irq_domain = hyperv_get_ir_irq_domain,
+ .get_irq_domain = hyperv_get_irq_domain,
};
#endif
--- a/drivers/iommu/intel/irq_remapping.c
+++ b/drivers/iommu/intel/irq_remapping.c
@@ -1131,7 +1131,6 @@ struct irq_remap_ops intel_irq_remap_ops
.disable = disable_irq_remapping,
.reenable = reenable_irq_remapping,
.enable_faulting = enable_drhd_fault_handling,
- .get_ir_irq_domain = intel_get_irq_domain,
.get_irq_domain = intel_get_irq_domain,
};
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -160,33 +160,12 @@ void panic_if_irq_remap(const char *msg)
}
/**
- * irq_remapping_get_ir_irq_domain - Get the irqdomain associated with the IOMMU
- * device serving request @info
- * @info: interrupt allocation information, used to identify the IOMMU device
- *
- * It's used to get parent irqdomain for HPET and IOAPIC irqdomains.
- * Returns pointer to IRQ domain, or NULL on failure.
- */
-struct irq_domain *
-irq_remapping_get_ir_irq_domain(struct irq_alloc_info *info)
-{
- if (!remap_ops || !remap_ops->get_ir_irq_domain)
- return NULL;
-
- return remap_ops->get_ir_irq_domain(info);
-}
-
-/**
* irq_remapping_get_irq_domain - Get the irqdomain serving the request @info
* @info: interrupt allocation information, used to identify the IOMMU device
*
- * There will be one PCI MSI/MSIX irqdomain associated with each interrupt
- * remapping device, so this interface is used to retrieve the PCI MSI/MSIX
- * irqdomain serving request @info.
* Returns pointer to IRQ domain, or NULL on failure.
*/
-struct irq_domain *
-irq_remapping_get_irq_domain(struct irq_alloc_info *info)
+struct irq_domain *irq_remapping_get_irq_domain(struct irq_alloc_info *info)
{
if (!remap_ops || !remap_ops->get_irq_domain)
return NULL;
--- a/drivers/iommu/irq_remapping.h
+++ b/drivers/iommu/irq_remapping.h
@@ -43,10 +43,7 @@ struct irq_remap_ops {
/* Enable fault handling */
int (*enable_faulting)(void);
- /* Get the irqdomain associated the IOMMU device */
- struct irq_domain *(*get_ir_irq_domain)(struct irq_alloc_info *);
-
- /* Get the MSI irqdomain associated with the IOMMU device */
+ /* Get the irqdomain associated to IOMMU device */
struct irq_domain *(*get_irq_domain)(struct irq_alloc_info *);
};
next prev parent reply other threads:[~2020-08-21 2:19 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-21 0:24 [patch RFC 00/38] x86, PCI, XEN, genirq ...: Prepare for device MSI Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 01/38] iommu/amd: Prevent NULL pointer dereference Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 02/38] x86/init: Remove unused init ops Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 03/38] x86/irq: Rename X86_IRQ_ALLOC_TYPE_MSI* to reflect PCI dependency Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 04/38] x86/irq: Add allocation type for parent domain retrieval Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 05/38] iommu/vt-d: Consolidate irq domain getter Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 06/38] iommu/amd: " Thomas Gleixner
2020-08-21 0:24 ` Thomas Gleixner [this message]
2020-08-21 0:24 ` [patch RFC 08/38] x86/irq: Prepare consolidation of irq_alloc_info Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 09/38] x86/msi: Consolidate HPET allocation Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 10/38] x86/ioapic: Consolidate IOAPIC allocation Thomas Gleixner
2020-08-26 8:40 ` Boqun Feng
2020-08-26 9:53 ` Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 11/38] x86/irq: Consolidate DMAR irq allocation Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 12/38] x86/irq: Consolidate UV domain allocation Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 13/38] PCI: MSI: Rework pci_msi_domain_calc_hwirq() Thomas Gleixner
2020-08-25 20:03 ` Bjorn Helgaas
2020-08-25 21:11 ` Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 14/38] x86/msi: Consolidate MSI allocation Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 15/38] x86/msi: Use generic MSI domain ops Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 16/38] x86/irq: Move apic_post_init() invocation to one place Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 17/38] x86/pci: Reducde #ifdeffery in PCI init code Thomas Gleixner
2020-08-25 20:20 ` Bjorn Helgaas
2020-08-21 0:24 ` [patch RFC 18/38] x86/irq: Initialize PCI/MSI domain at PCI init time Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 19/38] irqdomain/msi: Provide DOMAIN_BUS_VMD_MSI Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 20/38] PCI: vmd: Mark VMD irqdomain with DOMAIN_BUS_VMD_MSI Thomas Gleixner
2020-08-25 20:04 ` Bjorn Helgaas
2020-08-21 0:24 ` [patch RFC 21/38] PCI: MSI: Provide pci_dev_has_special_msi_domain() helper Thomas Gleixner
2020-08-25 20:16 ` Bjorn Helgaas
2020-08-21 0:24 ` [patch RFC 22/38] x86/xen: Make xen_msi_init() static and rename it to xen_hvm_msi_init() Thomas Gleixner
2020-08-24 4:48 ` Jürgen Groß
2020-08-21 0:24 ` [patch RFC 23/38] x86/xen: Rework MSI teardown Thomas Gleixner
2020-08-24 5:09 ` Jürgen Groß
2020-08-21 0:24 ` [patch RFC 24/38] x86/xen: Consolidate XEN-MSI init Thomas Gleixner
2020-08-24 4:59 ` Jürgen Groß
2020-08-24 21:21 ` Thomas Gleixner
2020-08-25 4:21 ` Jürgen Groß
2020-08-25 9:51 ` Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 25/38] irqdomain/msi: Allow to override msi_domain_alloc/free_irqs() Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 26/38] x86/xen: Wrap XEN MSI management into irqdomain Thomas Gleixner
2020-08-24 6:21 ` Jürgen Groß
2020-08-25 7:57 ` Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 27/38] iommm/vt-d: Store irq domain in struct device Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 28/38] iommm/amd: " Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 29/38] x86/pci: Set default irq domain in pcibios_add_device() Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 30/38] PCI/MSI: Allow to disable arch fallbacks Thomas Gleixner
2020-08-25 20:07 ` Bjorn Helgaas
2020-08-25 21:28 ` Thomas Gleixner
2020-08-25 21:35 ` Bjorn Helgaas
2020-08-25 21:40 ` Thomas Gleixner
2020-08-25 22:03 ` Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 31/38] x86/irq: Cleanup the arch_*_msi_irqs() leftovers Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 32/38] x86/irq: Make most MSI ops XEN private Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 33/38] x86/irq: Add DEV_MSI allocation type Thomas Gleixner
2020-08-21 0:24 ` [patch RFC 34/38] x86/msi: Let pci_msi_prepare() handle non-PCI MSI Thomas Gleixner
2020-08-25 20:24 ` Bjorn Helgaas
2020-08-25 21:30 ` Thomas Gleixner
2020-08-25 21:50 ` Bjorn Helgaas
2020-08-21 0:24 ` [patch RFC 35/38] platform-msi: Provide default irq_chip::ack Thomas Gleixner
2020-08-21 0:25 ` [patch RFC 36/38] platform-msi: Add device MSI infrastructure Thomas Gleixner
2020-08-21 0:25 ` [patch RFC 37/38] irqdomain/msi: Provide msi_alloc/free_store() callbacks Thomas Gleixner
2020-08-21 0:25 ` [patch RFC 38/38] irqchip: Add IMS array driver - NOT FOR MERGING Thomas Gleixner
2020-08-21 12:45 ` Jason Gunthorpe
2020-08-21 19:47 ` Thomas Gleixner
2020-08-21 20:17 ` Jason Gunthorpe
2020-08-21 23:47 ` Thomas Gleixner
2020-08-22 0:51 ` Jason Gunthorpe
2020-08-22 1:34 ` Thomas Gleixner
2020-08-22 23:05 ` Jason Gunthorpe
2020-08-23 8:03 ` Thomas Gleixner
2020-08-22 14:19 ` [patch RFC 00/38] x86, PCI, XEN, genirq ...: Prepare for device MSI Jürgen Groß
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