Commit 4ec8fd03 authored Apr 23, 2024 by Jacob Pan Committed by Thomas Gleixner Apr 30, 2024

x86/irq: Unionize PID.PIR for 64bit access w/o casting



Make the PIR field into u64 such that atomic xchg64 can be used without
ugly casting.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240423174114.526704-3-jacob.jun.pan@linux.intel.com

parent 699f6751

arch/x86/include/asm/posted_intr.h

+4 −1

Original line number	Diff line number	Diff line
		@@ -9,7 +9,10 @@

		/* Posted-Interrupt Descriptor */
		struct pi_desc {
		union {
		u32 pir[8]; /* Posted interrupt requested */
		u64 pir64[4];
		};
		union {
		struct {
		/* bit 256 - Outstanding Notification */