This patch from jbarnes and myself adds FIFO watermark control to the
driver.  This is needed for both power saving features on new platforms
with the so-called "big FIFO" and for controlling FIFO allocation
between pipes in multi-head configurations.

It's also necessary infrastructure to support things like framebuffer
compression and configuration supportability checks (i.e. checking a
configuration against available bandwidth).
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NShaohua Li <shaohua.li@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

The array of DAC limits was only ever referenced with #defined constant
offsets, and keeping those #define values in sync with the array itself was a
nuisance. This will make future changes to the set of DAC limits less
error-prone.
Signed-off-by: NKeith Packard <keithp@keithp.com>

Signed-off-by: NKeith Packard <keithp@keithp.com>

With the work by Jesse Barnes to eliminate allocation of fences during
execbuffer, it becomes possible to write to the scan-out buffer with it
never acquiring a fence (simply by only ever writing to the object using
tiled GPU commands and never writing to it via the GTT). So for pre-i965
chipsets which require fenced access for tiled scan-out buffers, we need
to obtain a fence register.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NEric Anholt <eric@anholt.net>

duplicate the mode into fbcon storage, so when we free modes later
we don't just lose this.
Signed-off-by: NDave Airlie <airlied@redhat.com>

With the DRM-driven DPMS code, encoders are considered idle unless a
connector is hooked to them, so mode setting is skipped. This makes load
detection fail as none of the hardware is enabled.
Signed-off-by: NKeith Packard <keithp@keithp.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

Ensure that the drm_vblank_pre_modeset() is always balanced by
drm_vblank_post_modeset() within intel_crtc_mode_set().
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NEric Anholt <eric@anholt.net>

We can safely assume that cursor addresses will not extend beyond the
addressable screen dimensions; setting the additional bits is harmless in
any case.
Signed-off-by: NKeith Packard <keithp@keithp.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

Signed-off-by: NZhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

Signed-off-by: NZhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

This adds kernel mode setting on IGDNG with VGA output support.
Note that suspend/resume doesn't work yet.
Signed-off-by: NZhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

For some reason we never added 8xx desktop cursor support to the
kernel.  This patch fixes that.

[krh: Also set the size on pre-i915 hw.]
Tested-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NEric Anholt <eric@anholt.net>

This allows userlevel code to discover the pipe number corresponding
to a given CRTC ID. This is necessary for doing pipe-specific
operations such as waiting for vblank on a given CRTC.  Failure to use
the right pipe mapping can result in GPU hangs, or at least failure
to actually sync to vblank.
Signed-off-by: NCarl Worth <cworth@cworth.org>
[anholt: Style touchups from review]
Signed-off-by: NEric Anholt <eric@anholt.net>

This patch corrects a pretty big oversight in the KMS code for 965+
chips.  The current code is missing tiled surface register programming,
so userland can allocate a tiled surface and use it for mode setting,
resulting in corruption.  This patch fixes that, allowing for tiled
front buffers on 965+.

Cc: stable@kernel.org
Tested-by: NArkadiusz Miskiewicz <arekm@maven.pl>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NEric Anholt <eric@anholt.net>

Signed-off-by: NShaohua Li <shaohua.li@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

This brings SDVO TV support from 2D driver, including origin
fix f1ca56e17d0 and later fix 2fcf4fcccfe. Also fix wrong modeline
definitions for SDVO TV.
Signed-off-by: NZhenyu Wang <zhenyu.z.wang@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

udelay() of 20 milliseconds really ought to just use mdelay(), that avoids
the various wrap scenarios and also is more readable
Signed-off-by: NArjan van de Ven <arjan@linux.intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

This is a G33-like desktop and mobile chipset.
Signed-off-by: NShaohua Li <shaohua.li@intel.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

This fixes incorrect detection of the second SDVO/HDMI output on G4X, and
extra boot time on pre-G4X.
Signed-off-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NEric Anholt <eric@anholt.net>

This improves the PLL timings according to the suggestion of the hardware
engineers.  This results in some outputs being able to sync that weren't
able to before.

This is part of fixing fd.o bug #17508.
Signed-off-by: NMa Ling <ling.ma@intel.com>
[anholt: cleaned up a couple of redundant comments]
Signed-off-by: NEric Anholt <eric@anholt.net>

The values come from the internal reference spreadsheet on PLL
timing limits for the G4X chipsets.

Part of fixing fd.o bug #17508
Signed-off-by: NMa Ling <ling.ma@intel.com>
[anholt: Cleaned up some whitespace]
Signed-off-by: NEric Anholt <eric@anholt.net>

These are normal; we walk through different values looking for the right
one, so why flood the screen with messages?
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@linux.ie>

there might be a nicer way to fix this but this is the simplest for now.
Signed-off-by: NPierre Willenbrock <pierre@pirsoft.de>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Need to do this in case the unref ends up doing a free.
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Lifted from the DDX modesetting.
Signed-off-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@redhat.com>

They used to be different.  Now they're identical.
Signed-off-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@redhat.com>

We need to hold the struct_mutex around pinning and the phys object
operations.
Signed-off-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Check the error paths within intel_pipe_set_base() to first cleanup and
then report back the error.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@linux.ie>

Set the request alignment to 0, and leave it up to i915_gem_object_pin()
to set the appropriate alignment to match the fence covering the object.

Eric Anholt mentioned that the pinning code is meant to choose the
maximum of the request alignment and that of the fence covering the
object... However currently, the pinning code will only apply the fence
constraints if the supplied alignment is 0.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@linux.ie>

Pull in an update from the 2D driver (hopefully the last one, future work
should be done here and pulled back into xf86-video-intel as needed).
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@linux.ie>

This saves startup time from probing SDVO, and saves setting up HDMI outputs
on G4X devices that don't have them.
Signed-off-by: NDave Airlie <airlied@linux.ie>

This makes sure the mutex is held around the unreference.
Signed-off-by: NDave Airlie <airlied@redhat.com>

This is an initial patch to do support for objects which needs physical
contiguous main ram, cursors and overlay registers on older chipsets.

These objects are bound on cursor bin, like pinning, and we copy
the data to/from the backing store object into the real one on attach/detach.

notes:
possible over the top in attach/detach operations.
no overlay support yet.
Signed-off-by: NDave Airlie <airlied@redhat.com>

Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@linux.ie>

Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@linux.ie>

This is ported directly from the userland 2D driver code.  The HDMI audio bits
aren't hooked up yet.
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@linux.ie>

We also didn't track the cursor bo before and would leak a reference
when the cursor image was change.
Signed-off-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@linux.ie>

This removes the requirement for user space to pin a buffer before
setting a mode that is backed by the pixels from that buffer.
Signed-off-by: NKristian Høgsberg <krh@redhat.com>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@linux.ie>

Signed-off-by: NHannes Eder <hannes@hanneseder.net>
Signed-off-by: NEric Anholt <eric@anholt.net>
Signed-off-by: NDave Airlie <airlied@linux.ie>