From patchwork Tue Feb 12 21:18:32 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [3.5.y.z, extended, stable] Patch "drm/radeon/evergreen+: wait for the MC to settle after MC" has been added to staging queue Date: Tue, 12 Feb 2013 11:18:32 -0000 From: Herton Ronaldo Krzesinski X-Patchwork-Id: 219973 Message-Id: <1360703912-18357-1-git-send-email-herton.krzesinski@canonical.com> To: Alex Deucher Cc: kernel-team@lists.ubuntu.com This is a note to let you know that I have just added a patch titled drm/radeon/evergreen+: wait for the MC to settle after MC to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree which can be found at: http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.5.y.z tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Herton ------ >From 93fe7ed2644e75056a2a6d9ffaab2ddba3ddfd26 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 31 Jan 2013 09:00:52 -0500 Subject: [PATCH] drm/radeon/evergreen+: wait for the MC to settle after MC blackout commit ed39fadd6df01095378e499fac3674883f16b853 upstream. Some chips seem to need a little delay after blacking out the MC before the requests actually stop. May fix: https://bugs.freedesktop.org/show_bug.cgi?id=56139 https://bugs.freedesktop.org/show_bug.cgi?id=57567 Signed-off-by: Alex Deucher Signed-off-by: Herton Ronaldo Krzesinski --- drivers/gpu/drm/radeon/evergreen.c | 2 ++ 1 file changed, 2 insertions(+) -- 1.7.9.5 diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 4170e1e..ccac010 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -1183,6 +1183,8 @@ void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *sav blackout &= ~BLACKOUT_MODE_MASK; WREG32(MC_SHARED_BLACKOUT_CNTL, blackout | 1); } + /* wait for the MC to settle */ + udelay(100); } void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save)