[tip:irq/core] x86/msi: Provide new iommu irqdomain interface

2017-06-22 Thread tip-bot for Thomas Gleixner 
Commit-ID:  667724c5a3109675cf3bfe7d75795b8608d1bcbe
Gitweb: http://git.kernel.org/tip/667724c5a3109675cf3bfe7d75795b8608d1bcbe
Author: Thomas Gleixner 
AuthorDate: Tue, 20 Jun 2017 01:37:10 +0200
Committer:  Thomas Gleixner 
CommitDate: Thu, 22 Jun 2017 18:21:10 +0200

x86/msi: Provide new iommu irqdomain interface

Provide a new interface for creating the iommu remapping domains, so that
the caller can supply a name and a id in order to create named irqdomains.

Signed-off-by: Thomas Gleixner 
Cc: Jens Axboe 
Cc: Marc Zyngier 
Cc: Michael Ellerman 
Cc: Joerg Roedel 
Cc: Keith Busch 
Cc: Peter Zijlstra 
Cc: io...@lists.linux-foundation.org
Cc: Christoph Hellwig 
Link: http://lkml.kernel.org/r/20170619235443.986661...@linutronix.de
Signed-off-by: Thomas Gleixner 

---
 arch/x86/include/asm/irq_remapping.h |  2 ++
 arch/x86/kernel/apic/msi.c   | 15 +++
 2 files changed, 17 insertions(+)

diff --git a/arch/x86/include/asm/irq_remapping.h 
b/arch/x86/include/asm/irq_remapping.h
index a210eba..0398675 100644
--- a/arch/x86/include/asm/irq_remapping.h
+++ b/arch/x86/include/asm/irq_remapping.h
@@ -56,6 +56,8 @@ irq_remapping_get_irq_domain(struct irq_alloc_info *info);
 
 /* Create PCI MSI/MSIx irqdomain, use @parent as the parent irqdomain. */
 extern struct irq_domain *arch_create_msi_irq_domain(struct irq_domain 
*parent);
+extern struct irq_domain *
+arch_create_remap_msi_irq_domain(struct irq_domain *par, const char *n, int 
id);
 
 /* Get parent irqdomain for interrupt remapping irqdomain */
 static inline struct irq_domain *arch_get_ir_parent_domain(void)
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index c61aec7..0e6618e 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -167,10 +167,25 @@ static struct msi_domain_info pci_msi_ir_domain_info = {
.handler_name   = "edge",
 };
 
+struct irq_domain *arch_create_remap_msi_irq_domain(struct irq_domain *parent,
+   const char *name, int id)
+{
+   struct fwnode_handle *fn;
+   struct irq_domain *d;
+
+   fn = irq_domain_alloc_named_id_fwnode(name, id);
+   if (!fn)
+   return NULL;
+   d = pci_msi_create_irq_domain(fn, _msi_ir_domain_info, parent);
+   irq_domain_free_fwnode(fn);
+   return d;
+}
+
 struct irq_domain *arch_create_msi_irq_domain(struct irq_domain *parent)
 {
return pci_msi_create_irq_domain(NULL, _msi_ir_domain_info, parent);
 }
+
 #endif
 
 #ifdef CONFIG_DMAR_TABLE

[tip:irq/core] x86/msi: Provide new iommu irqdomain interface

2017-06-22 Thread tip-bot for Thomas Gleixner 
Commit-ID:  667724c5a3109675cf3bfe7d75795b8608d1bcbe
Gitweb: http://git.kernel.org/tip/667724c5a3109675cf3bfe7d75795b8608d1bcbe
Author: Thomas Gleixner 
AuthorDate: Tue, 20 Jun 2017 01:37:10 +0200
Committer:  Thomas Gleixner 
CommitDate: Thu, 22 Jun 2017 18:21:10 +0200

x86/msi: Provide new iommu irqdomain interface

Provide a new interface for creating the iommu remapping domains, so that
the caller can supply a name and a id in order to create named irqdomains.

Signed-off-by: Thomas Gleixner 
Cc: Jens Axboe 
Cc: Marc Zyngier 
Cc: Michael Ellerman 
Cc: Joerg Roedel 
Cc: Keith Busch 
Cc: Peter Zijlstra 
Cc: io...@lists.linux-foundation.org
Cc: Christoph Hellwig 
Link: http://lkml.kernel.org/r/20170619235443.986661...@linutronix.de
Signed-off-by: Thomas Gleixner 

---
 arch/x86/include/asm/irq_remapping.h |  2 ++
 arch/x86/kernel/apic/msi.c   | 15 +++
 2 files changed, 17 insertions(+)

diff --git a/arch/x86/include/asm/irq_remapping.h 
b/arch/x86/include/asm/irq_remapping.h
index a210eba..0398675 100644
--- a/arch/x86/include/asm/irq_remapping.h
+++ b/arch/x86/include/asm/irq_remapping.h
@@ -56,6 +56,8 @@ irq_remapping_get_irq_domain(struct irq_alloc_info *info);
 
 /* Create PCI MSI/MSIx irqdomain, use @parent as the parent irqdomain. */
 extern struct irq_domain *arch_create_msi_irq_domain(struct irq_domain 
*parent);
+extern struct irq_domain *
+arch_create_remap_msi_irq_domain(struct irq_domain *par, const char *n, int 
id);
 
 /* Get parent irqdomain for interrupt remapping irqdomain */
 static inline struct irq_domain *arch_get_ir_parent_domain(void)
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index c61aec7..0e6618e 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -167,10 +167,25 @@ static struct msi_domain_info pci_msi_ir_domain_info = {
.handler_name   = "edge",
 };
 
+struct irq_domain *arch_create_remap_msi_irq_domain(struct irq_domain *parent,
+   const char *name, int id)
+{
+   struct fwnode_handle *fn;
+   struct irq_domain *d;
+
+   fn = irq_domain_alloc_named_id_fwnode(name, id);
+   if (!fn)
+   return NULL;
+   d = pci_msi_create_irq_domain(fn, _msi_ir_domain_info, parent);
+   irq_domain_free_fwnode(fn);
+   return d;
+}
+
 struct irq_domain *arch_create_msi_irq_domain(struct irq_domain *parent)
 {
return pci_msi_create_irq_domain(NULL, _msi_ir_domain_info, parent);
 }
+
 #endif
 
 #ifdef CONFIG_DMAR_TABLE