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authorJiang Liu <jiang.liu@linux.intel.com>2014-11-12 12:11:25 +0100
committerThomas Gleixner <tglx@linutronix.de>2014-11-23 13:01:47 +0100
commit38b6a1cf3e4df0a3267c01fab699ab65d58690f4 (patch)
treee6ff598d474183f2c7af3b17ef490ccdb526eb62 /kernel/irq/msi.c
parentaeeb59657c35da64068336c20068da237f41ab76 (diff)
PCI/MSI: Move cached entry functions to irq core
Required to support non PCI based MSI. [ tglx: Extracted from Jiangs patch series ] Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/irq/msi.c')
-rw-r--r--kernel/irq/msi.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index d0fe84d881f6..f477a2f8ce56 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -18,6 +18,19 @@
/* Temparory solution for building, will be removed later */
#include <linux/pci.h>
+void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
+{
+ *msg = entry->msg;
+}
+
+void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg)
+{
+ struct msi_desc *entry = irq_get_msi_desc(irq);
+
+ __get_cached_msi_msg(entry, msg);
+}
+EXPORT_SYMBOL_GPL(get_cached_msi_msg);
+
#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
/**
* msi_domain_set_affinity - Generic affinity setter function for MSI domains