On systems using kexec, the new kernel is booted straight from the old kernel, without any warning to the graphics driver. So the GPU is basically left as-is in a running state, however the CPU side is completly reset.

Without stating the saneness of anyone using kexec on live systems, we should at least try not to crash the GPU. This patch resets 3 registers to 0 that could cause bad things to happen to the running system.

This allows kexec to work on a Power6/RN50 system.
Signed-off-by: NDave Airlie <airlied@redhat.com>

This fixes a problem where on low VRAM cards we'd run out of space for validation.

[airlied: Tested on my M7, Thinkpad T42, compiz works with no problems.]
Signed-off-by: NMichel Dänzer <daenzer@vmware.com>
Cc: stable@kernel.org
Signed-off-by: NDave Airlie <airlied@redhat.com>

This is required for the NB_MISC regs on rs780/rs880 which
means HDMI/DVI/DP ports using PCIEPHY won't work without
it. It might also help with s/r (asic init) issues on other
atombios cards.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28774
and similar issues reported by Alberto Milone.

[airlied: Squash io fix patch]
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Tested-by: NRafał Miłecki <zajec5@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

We will need method of selecting encoder that should receive HDMI block. For
now we assign HDMI block to first enabled encoder. Hopefully there are not many
RS6x0 chips with two digital encoders.

[airlied: add RS740 checks as per Alex suggestion.]
Signed-off-by: NRafał Miłecki <zajec5@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

This is needed to enable audio support on devices using polling. In case user
decides to disable audio (module parameter) we still will try to use timer in
r600_audio_enable_polling. This would lead to BUG in kernel/timer.c.
Signed-off-by: NRafał Miłecki <zajec5@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Userspace needs this information to access tiled
buffers via the CPU.

v2: rebased on evergreen accel changes
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Covers depth, cb, and textures. Hopefully I got this right.

v2: - fix bugs:
      https://bugs.freedesktop.org/show_bug.cgi?id=28327
      https://bugs.freedesktop.org/show_bug.cgi?id=28381
    - use ALIGNED(), IS_ALIGNED() macros
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Check for relocs for DB_DEPTH_INFO, CB_COLOR*_INFO, and texture
resources.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Needed for scanning out of a tiled buffer.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Needed for scanning out of a tiled buffer.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

rv6xx/rv7xx/evergreen families supported; older asics did
not have an internal thermal sensor.

Note, not all oems use the internal thermal sensor, so it's
only exposed in cases where it is used.

Note also, that most laptops use an oem specific ACPI solution for
GPU thermal information rather than using the internal thermal
sensor directly.

v2: export millidegrees celsius, use hwmon device properly.
v3: fix Kconfig
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

By calling the ATIF method in the radeon driver we can make sure
that hotkeys such as the video switch key emit ACPI events when
pressed.

agd5f: fix warning
Signed-off-by: NAlberto Milone <alberto.milone@canonical.com>
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Some tables have delays that can cause the timeout to hit
even when not intended.

Should fix:
https://bugs.freedesktop.org/show_bug.cgi?id=27744
and related bugs.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

- Make the logic in r100_pll_errata_after_index() match the other
errata functions
- Use rdev->family rather than rdev->flags & RADEON_FAMILY_MASK for kms
- replace rn50 check using ids with ASIC_IS_RN50 convenience macro
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Disables the crts as per dpms and also disables the ppll
associated with the crtc.  This should save additional power.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Connectors with a shared ddc line can be connected to different
encoders.

Reported by Pasi Kärkkäinen <pasik@iki.fi> on dri-devel
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: NDave Airlie <airlied@redhat.com>

Some RV100 cards with 2 VGA ports show up with DVI+VGA, however
some boards with DVI+VGA have the same subsystem ids. Better
to have a VGA port show up as DVI than having a non-useable
DVI port.

reported by DHR in irc.
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28745Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Tested-by: NRafał Miłecki <zajec5@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

DRM / radeon / KMS: Fix hibernation regression related to radeon PM (was: Re: [Regression, post-2.6.34] Hibernation broken on machines with radeon/KMS and r300)

There is a regression from 2.6.34 related to the recent radeon power
management changes, caused by attempting to cancel a delayed work
item that's never been scheduled.  However, the code as is has some
other issues potentially leading to visible problems.

First, the mutex around cancel_delayed_work() in radeon_pm_suspend()
doesn't really serve any purpose, because cancel_delayed_work() only
tries to delete the work's timer.  Moreover, it doesn't prevent the
work handler from running, so the handler can do some wrong things if
it wins the race and in that case it will rearm itself to do some
more wrong things going forward.  So, I think it's better to wait for
the handler to return in case it's already been queued up for
execution.  Also, it should be prevented from rearming itself in that
case.

Second, in radeon_set_pm_method() the cancel_delayed_work() is not
sufficient to prevent the work handler from running and queing up
itself for the next run (the failure scenario is that
cancel_delayed_work() returns 0, so the handler is run, it waits on
the mutex and then rearms itself after the mutex has been released),
so again the work handler should be prevented from rearming itself in
that case..

Finally, there's a potential deadlock in radeon_pm_fini(), because
cancel_delayed_work_sync() is called under rdev->pm.mutex, but the
work handler tries to acquire the same mutex (if it wins the race).

Fix the issues described above.
Signed-off-by: NRafael J. Wysocki <rjw@sisk.pl>
Reviewed-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Some IGP systems specify the system memory clock in the Firmware
table rather than the IGP info table.  Check both and make sure
we have a value system memory clock value.

v2: make sure rs690_pm_info is called on rs780/rs880 as well.

fixes a regression since 07d4190327b02ab3aaad25a2d168f79d92e8f8c2.
Reported-by: NMarkus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Tested-by: NMarkus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: NDave Airlie <airlied@redhat.com>

For some reason on resume, executing the BIOS scripts locks up the whole chipset, by avoiding the dynclk table the machine resumes properly and seems to function okay.
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

They don't have an atombios so don't attempt to use it for
eng/mem clocks.

Reported by spoonb on #radeon
fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28671Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

HDP non surface should cover the whole VRAM but we were misscomputing
the size and we endup in some case not covering the VRAM at all (if
VRAM size were > 1G). Covering more than the VRAM size shouldn't be
an issue.

Fix : https://bugs.freedesktop.org/show_bug.cgi?id=28016

[airlied: add evergreen fix]
Signed-off-by: NJerome Glisse <jglisse@redhat.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Should fix fdo bug 28331:
https://bugs.freedesktop.org/show_bug.cgi?id=28331Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Since the VGA switcheroo, we'd attempt to read the BIOS from VRAM on startup
but on some unposted cards this can cause hangs/crashes.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=28592

(further problem pointed out by agd5f on IGP systems)

Reported-by: Reilithion on #radeon
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

We were returning 0 in both the success and failure paths. Noticed while
investigating FDO bug 26403.
Signed-off-by: NMatt Turner <mattst88@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

This needs similar handling to other compressed textures.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=26428

Signed-off-by: sroland@vmware.com
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Code did not handle projected 2d and depth coordinates, meaning potentially
set 3d or cube special handling might stick.
(Not sure what depth coord actually does, but I guess handling it
like a normal coordinate is the right thing to do.)
Might be related to https://bugs.freedesktop.org/show_bug.cgi?id=26428

Signed-off-by: sroland@vmware.com
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: NDave Airlie <airlied@redhat.com>

fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28459

agd5f: apply to r1xx/r2xx as well.
Signed-off-by: NRoland Scheidegger <sroland@vmware.com>
Cc: stable@kernel.org
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

This works well enough on a js21, but it would be nice if IBM could supply
more tables for the later Power6/7 machines.
Signed-off-by: NDave Airlie <airlied@redhat.com>

The transmitter needs to be enabled before the link is trained.
Reported-By: NLars Doelle <lars.doelle@on-line.de>
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: NDave Airlie <airlied@redhat.com>

When suspending, we turn the display hw off, at resume the screen will stay black.
This patch turn it on. Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=16180Signed-off-by: NCedric Godin <cedric.godin@skynet.be>
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Fixes fdo bug 27529:
https://bugs.freedesktop.org/show_bug.cgi?id=27529

Reported-by: steckdenis@yahoo.fr
Signed-off-by: NAlex Deucher <alexdeucher@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Installing 2.6.34 on a Power5/rn50 combo machine, X showed buggy sw rendering,
enabling tiling in the DDX fixed it. Investigation showed that a further /16
was needed in the untiled case on this chipset. Need further investigations
on what other chips this could affect, possibly rv100->rv280.
Signed-off-by: NDave Airlie <airlied@redhat.com>

Plugged in FireMV with the rv250 on it, and the second crtc/dac didn't work,
we were reading/writing different registers than we were modifying in the code.
Signed-off-by: NDave Airlie <airlied@redhat.com>

So when we added output polling, we'd suddenly use this code more often, and the fact that it always takes over crtc2 and messes with it during probing isn't what we really want to be happening. A more complete fix would to change it to use whatever crtc was free at the time, but for now lets stay simple and just don't poll if crtc2 is already in use.

Although a more correct fix was found I suspect we should do this as well, until we get a chance to readdres the tv out polling issues.
Reported-by: NTorsten Kaiser <just.for.lkml@googlemail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

We really don't want to be polling tv-out but since we weren't forcing the
i2c lines to invalid (tv-out has no DDC), we were adding tv connectors to the
polling setup and this was causing blinking on secondary displays.

This fixes the regression Torsten reported.
Reported-by: NTorsten Kaiser <just.for.lkml@googlemail.com>
Tested-by: NTorsten Kaiser <just.for.lkml@googlemail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>