From: Antonios Motakis <a.motakis@virtualopensystems.com>
Date: Mon, 16 Mar 2015 20:08:50 +0000 (-0600)
Subject: vfio/platform: trigger an interrupt via eventfd
X-Git-Tag: omap-for-v4.2/o2_dc~137^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=57f972e2b341dd6a73533f9293ec55d584a5d833;p=pandora-kernel.git

vfio/platform: trigger an interrupt via eventfd

This patch allows to set an eventfd for a platform device's interrupt,
and also to trigger the interrupt eventfd from userspace for testing.
Level sensitive interrupts are marked as maskable and are handled in
a later patch. Edge triggered interrupts are not advertised as maskable
and are implemented here using a simple and efficient IRQ handler.

Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com>
[Baptiste Reynal: fix masked interrupt initialization]
Signed-off-by: Baptiste Reynal <b.reynal@virtualopensystems.com>
Reviewed-by: Eric Auger <eric.auger@linaro.org>
Tested-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---

Reading git-diff-tree failed