linux_dsm_epyc7002/arch/x86/include/asm/numachip
Daniel J Blueman ad03a9c25d x86/numachip: Add Numachip IPI optimisations
When sending IPIs, first check if the non-local part of the source and
destination APIC IDs match; if so, send via the local APIC for efficiency.

Secondly, since the AMD BIOS-kernel developer guide states IPI delivery
will occur invarient of prior deliver status, avoid polling the delivery
status bit for efficiency.

Signed-off-by: Daniel J Blueman <daniel@numascale.com>
Acked-by: Steffen Persvold <sp@numascale.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: http://lkml.kernel.org/r/1442768522-19217-3-git-send-email-daniel@numascale.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-09-22 22:25:33 +02:00
..
numachip_csr.h x86/numachip: Add Numachip IPI optimisations 2015-09-22 22:25:33 +02:00
numachip.h x86/numachip: Add Numachip2 APIC support 2015-09-22 22:25:33 +02:00