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authorThomas Gleixner <tglx@linutronix.de>2017-06-20 01:37:09 +0200
committerThomas Gleixner <tglx@linutronix.de>2017-06-22 18:21:10 +0200
commitf8409a6a4bf86e2d90ec8460df2874e4e19ebb27 (patch)
treed9811bf51cc37b32ee74885b3297c6a1fd40ca95
parentx86/htirq: Create named domain (diff)
downloadlinux-dev-f8409a6a4bf86e2d90ec8460df2874e4e19ebb27.tar.xz
linux-dev-f8409a6a4bf86e2d90ec8460df2874e4e19ebb27.zip
x86/uv: Create named irq domain
Use the fwnode to create a named domain so diagnosis works. 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/20170619235443.907511074@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--arch/x86/platform/uv/uv_irq.c18
1 files changed, 13 insertions, 5 deletions
diff --git a/arch/x86/platform/uv/uv_irq.c b/arch/x86/platform/uv/uv_irq.c
index 776c6592136c..03fc397335b7 100644
--- a/arch/x86/platform/uv/uv_irq.c
+++ b/arch/x86/platform/uv/uv_irq.c
@@ -160,13 +160,21 @@ static struct irq_domain *uv_get_irq_domain(void)
{
static struct irq_domain *uv_domain;
static DEFINE_MUTEX(uv_lock);
+ struct fwnode_handle *fn;
mutex_lock(&uv_lock);
- if (uv_domain == NULL) {
- uv_domain = irq_domain_add_tree(NULL, &uv_domain_ops, NULL);
- if (uv_domain)
- uv_domain->parent = x86_vector_domain;
- }
+ if (uv_domain)
+ goto out;
+
+ fn = irq_domain_alloc_named_fwnode("UV-CORE");
+ if (!fn)
+ goto out;
+
+ uv_domain = irq_domain_create_tree(fn, &uv_domain_ops, NULL);
+ irq_domain_free_fwnode(fn);
+ if (uv_domain)
+ uv_domain->parent = x86_vector_domain;
+out:
mutex_unlock(&uv_lock);
return uv_domain;