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authorJiang Liu <jiang.liu@linux.intel.com>2015-06-01 16:05:12 +0800
committerThomas Gleixner <tglx@linutronix.de>2015-06-12 16:54:21 +0200
commit0d0b4c866bcce647f40d73efe5e90aeeb079050a (patch)
tree9a4dc1dd5f52dcc5b4455c3e75c2678b393bc06d /include/linux/irqdesc.h
parent77ed42f18edd486e9994ccd1f174076309a6343f (diff)
genirq: Introduce struct irq_common_data to host shared irq data
With the introduction of hierarchy irqdomain, struct irq_data becomes per-chip instead of per-irq and there may be multiple irq_datas associated with the same irq. Some per-irq data stored in struct irq_data now may get duplicated into multiple irq_datas, and causes inconsistent view. So introduce struct irq_common_data to host per-irq common data and to achieve consistent view among irq_chips. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Marc Zyngier <marc.zyngier@arm.com> Link: http://lkml.kernel.org/r/1433145945-789-4-git-send-email-jiang.liu@linux.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/irqdesc.h')
-rw-r--r--include/linux/irqdesc.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index a113a8dc7438..c52d1480f272 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -17,7 +17,7 @@ struct pt_regs;
/**
* struct irq_desc - interrupt descriptor
- * @irq_data: per irq and chip data passed down to chip functions
+ * @irq_common_data: per irq and chip data passed down to chip functions
* @kstat_irqs: irq stats per cpu
* @handle_irq: highlevel irq-events handler
* @preflow_handler: handler called before the flow handler (currently used by sparc)
@@ -47,6 +47,7 @@ struct pt_regs;
* @name: flow handler name for /proc/interrupts output
*/
struct irq_desc {
+ struct irq_common_data irq_common_data;
struct irq_data irq_data;
unsigned int __percpu *kstat_irqs;
irq_flow_handler_t handle_irq;