releases/3.6.2/drm-radeon-force-msis-on-rs690-asics.patch

   1 From fb6ca6d154cdcd53e7f27f8dbba513830372699b Mon Sep 17 00:00:00 2001
   2 From: Alex Deucher <alexander.deucher@amd.com>
   3 Date: Wed, 26 Sep 2012 12:40:45 -0400
   4 Subject: drm/radeon: force MSIs on RS690 asics
   5
   6 From: Alex Deucher <alexander.deucher@amd.com>
   7
   8 commit fb6ca6d154cdcd53e7f27f8dbba513830372699b upstream.
   9
  10 There are so many quirks, lets just try and force
  11 this for all RS690s.  See:
  12 https://bugs.freedesktop.org/show_bug.cgi?id=37679
  13
  14 Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
  15 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  16
  17 ---
  18  drivers/gpu/drm/radeon/radeon_irq_kms.c |    4 ++++
  19  1 file changed, 4 insertions(+)
  20
  21 --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
  22 +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
  23 @@ -210,6 +210,10 @@ static bool radeon_msi_ok(struct radeon_
  24             (rdev->pdev->subsystem_device == 0x0185))
  25                 return true;
  26
  27 +       /* try and enable MSIs by default on all RS690s */
  28 +       if (rdev->family == CHIP_RS690)
  29 +               return true;
  30 +
  31         /* RV515 seems to have MSI issues where it loses
  32          * MSI rearms occasionally. This leads to lockups and freezes.
  33          * disable it by default.