svn commit: r367447 - in head/sys: kern sys

[Michal Meloun]

Author: mmel
Date: Sat Nov  7 14:58:01 2020
New Revision: 367447
URL: https://svnweb.freebsd.org/changeset/base/367447

Log:
  Add a method to determine whether given interrupt is per CPU or not.
  
  MFC after:	2 weeks

Modified:
  head/sys/kern/subr_intr.c
  head/sys/sys/intr.h

Modified: head/sys/kern/subr_intr.c
==============================================================================
--- head/sys/kern/subr_intr.c	Sat Nov  7 13:16:11 2020	(r367446)
+++ head/sys/kern/subr_intr.c	Sat Nov  7 14:58:01 2020	(r367447)
@@ -946,6 +946,21 @@ intr_resolve_irq(device_t dev, intptr_t xref, struct i
 	}
 }
 
+bool
+intr_is_per_cpu(struct resource *res)
+{
+	u_int res_id;
+	struct intr_irqsrc *isrc;
+
+	res_id = (u_int)rman_get_start(res);
+	isrc = intr_map_get_isrc(res_id);
+
+	if (isrc == NULL)
+		panic("Attempt to get isrc for non-active resource id: %u\n",
+		    res_id);
+	return ((isrc->isrc_flags & INTR_ISRCF_PPI) != 0);
+}
+
 int
 intr_activate_irq(device_t dev, struct resource *res)
 {

Modified: head/sys/sys/intr.h
==============================================================================
--- head/sys/sys/intr.h	Sat Nov  7 13:16:11 2020	(r367446)
+++ head/sys/sys/intr.h	Sat Nov  7 14:58:01 2020	(r367447)
@@ -115,6 +115,7 @@ int intr_pic_deregister(device_t, intptr_t);
 int intr_pic_claim_root(device_t, intptr_t, intr_irq_filter_t *, void *, u_int);
 struct intr_pic *intr_pic_add_handler(device_t, struct intr_pic *,
     intr_child_irq_filter_t *, void *, uintptr_t, uintptr_t);
+bool intr_is_per_cpu(struct resource *);
 
 extern device_t intr_irq_root_dev;