From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 26 Sep 2012 16:40:45 +0000 (-0400)
Subject: drm/radeon: force MSIs on RS690 asics
X-Git-Tag: firefly_0821_release~7541^2~511
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a0e49be3b9bb651376b12682bd57212d1033ef36;p=firefly-linux-kernel-4.4.55.git

drm/radeon: force MSIs on RS690 asics

commit fb6ca6d154cdcd53e7f27f8dbba513830372699b upstream.

There are so many quirks, lets just try and force
this for all RS690s.  See:
https://bugs.freedesktop.org/show_bug.cgi?id=37679

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index d6bb436f5081..1cfe7539fd9f 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -149,6 +149,10 @@ static bool radeon_msi_ok(struct radeon_device *rdev)
 	    (rdev->pdev->subsystem_device == 0x0185))
 		return true;
 
+	/* try and enable MSIs by default on all RS690s */
+	if (rdev->family == CHIP_RS690)
+		return true;
+
 	/* RV515 seems to have MSI issues where it loses
 	 * MSI rearms occasionally. This leads to lockups and freezes.
 	 * disable it by default.