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Old 12-18-2009, 08:10 AM
Timo Aaltonen
Default drm fixes (fwd)


Now that KMS for radeon is turned on, you should actively monitor
upstream for fixes to the drm layer. Here is a post which lists some which
are now in .33 and F12. I'm sure that .33 has more, but I don't have a
list of those, nor do I have hw to test them.

Timo Aaltonen
Systems Specialist
IT Services, Helsinki University of Technology

---------- Forwarded message ----------
Date: Tue, 24 Nov 2009 03:10:44 +0000 (GMT)
From: Dave Airlie <airlied@linux.ie>
To: torvalds@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.sf.net
Subject: [git pull] drm fixes

Hi Linus,

Please pull the 'drm-linus' branch from
ssh://master.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git drm-linus

I've pulled the most required patches from the optional pull that you
didn't take from last week. Granted this means the F12 kernel has now got
a bunch of patches that should be in 2.6.32 but will have to wait for
2.6.33, distros thinking of packaging radeon kms do take note.


drivers/gpu/drm/drm_edid.c | 6 ++++++
drivers/gpu/drm/drm_fb_helper.c | 6 +++---
drivers/gpu/drm/drm_gem.c | 2 +-
drivers/gpu/drm/drm_mm.c | 9 +++++++++
drivers/gpu/drm/radeon/atom.c | 1 +
drivers/gpu/drm/radeon/radeon.h | 1 +
drivers/gpu/drm/radeon/radeon_agp.c | 12 ++++++++++++
drivers/gpu/drm/radeon/radeon_connectors.c | 16 ++++++++++++----
drivers/gpu/drm/radeon/radeon_device.c | 2 ++
drivers/gpu/drm/radeon/rv515.c | 9 ++++-----
10 files changed, 51 insertions(+), 13 deletions(-)

commit 5349ef3127c77075ff70b2014f17ae0fbcaaf199
Author: Clemens Ladisch <clemens@ladisch.de>
Date: Wed Nov 4 09:42:52 2009 +0100

drm/fb: fix FBIOGET/PUT_VSCREENINFO pixel clock handling

When the framebuffer driver does not publish detailed timing information
for the current video mode, the correct value for the pixclock field is
zero, not -1.

Since pixclock is actually unsigned, the value -1 would be interpreted
as 4294967295 picoseconds (i.e., about 4 milliseconds) by
register_framebuffer() and userspace programs.

This patch allows X.org's fbdev driver to work.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Tested-by: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

commit 79cc304f3e2fda202242036326afb2aeca486156
Author: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Tue Nov 17 14:08:54 2009 -0800

drm: make sure page protections are updated after changing vm_flags

Some architectures compute ->vm_page_prot depending on ->vm_flags, so we
need to update the protections after adjusting the flags.

AFAIK this only affects running X under Xen; without this patch you get
lots of coloured blobs on the screen, or maybe a complete lockup. Or
anything really.

But that still depends on lots of out-of-tree stuff, so I don't think
there are any consequences for anyone else. But it is wrong in principle.

Reported-by: Jan Beulich <JBeulich@novell.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

commit f82f5f3ac4de6c6b872fcbb3dec97f368e78ff58
Author: Jerome Glisse <jglisse@redhat.com>
Date: Thu Nov 12 14:13:53 2009 +0100

drm/radeon/kms: Report vga connector is connected according to ddc_probe

On broken EDID we were reporting vga connector to be disconnected
even if ddc probe did found a monitor. This patch report that the
connector is connected on such case. This allow drm to add a fail
safe mode (800x600 at the time of this patch) thus user can boot
and later add a mode which match its monitor capabilities.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

commit a698cf34ea867efef12fc29dd63d443f0c71a53c
Author: Jerome Glisse <jglisse@redhat.com>
Date: Fri Nov 13 20:56:58 2009 +0100

drm: mm always protect change to unused_nodes with unused_lock spinlock

unused_nodes modification needs to be protected by unused_lock spinlock.
Here is an example of an usage where there is no such protection without
this patch.

Process 1: 1-drm_mm_pre_get(this function modify unused_nodes list)
2-spin_lock(spinlock protecting mm struct)
3-drm_mm_put_block(this function might modify unused_nodes
list but doesn't protect modification with unused_lock)
4-spin_unlock(spinlock protecting mm struct)
Process2: 1-drm_mm_pre_get(this function modify unused_nodes list)
At this point Process1 & Process2 might both be doing modification to
unused_nodes list. This patch add unused_lock protection into
drm_mm_put_block to avoid such issue.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

commit 0beb81ab45c67de4b3aa85faad604cff8ed133a8
Author: Jerome Glisse <jglisse@redhat.com>
Date: Fri Nov 13 20:56:35 2009 +0100

drm/radeon/kms: Disable TV load detect on RS400,RC410,RS480

RS400,RC410,RS480 chipset seems to report a lot of false positive
with load detect on TV output. We haven't yet found a way to make
load detect reliable on those chipset, thus just disable it for TV
output. Would avoid user to experience phantom screen because X
believe there is a monitor connected to the TV output.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

commit 23115b0592bde5da249fcbdad7714c1f96a8e5f5
Author: Dave Airlie <airlied@linux.ie>
Date: Thu Nov 12 15:53:44 2009 +1000

drm/radeon/kms: read back register before writing in IIO.

This fixes RH bugzilla #527874.

On resume the atom posting wasn't working, however vbe posting was
going fine, after 2 weeks over irc, and 8 hrs with the hardware,
I tracked it down to the memory device table and it access the MC
registers via IIO, it appears the rv515 atom iio table might not
be fully functional, so adding a readback before doing a write
either provides enough delay to make things resume correctly.

Thanks to Peng Huang at Red Hat for coming to Brisbane.

Signed-off-by: Dave Airlie <airlied@redhat.com>

commit ef63062716415d6e271815872b6c6654ffa9ac26
Author: Dave Airlie <airlied@linux.ie>
Date: Thu Nov 12 09:37:39 2009 +1000

drm/radeon/kms: fix handling of d1/d2 vga

An rv515 laptop I got wouldn't startup with a montior plugged in,
found the proper bug hopefully with us not turning off D2VGA
here when we should.

Signed-off-by: Dave Airlie <airlied@redhat.com>

commit 7064fef56369c9e2c6e35ff6d6b4b63d42a859ce
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Thu Nov 5 10:12:54 2009 -0800

drm: work around EDIDs with bad htotal/vtotal values

We did this on the userspace side, but we need a similar fix for the

Fixes LP #460664.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

commit 0ebf17174b4bdd99ab81c476714c91ee335fdcbf
Author: Dave Airlie <airlied@redhat.com>
Date: Thu Nov 5 15:39:10 2009 +1000

drm/radeon/kms: resume AGP by calling init.

AGP resume was broken since we moved to the new init path,
because we never re-enabled AGP on these systems at resume time.

This patch just calls the AGP resume call which just does the reinit
at resume time like the old path did.

Since AGP is pretty much gpu independant I did it outside
the gpu specific code.

Signed-off-by: Dave Airlie <airlied@redhat.com>

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