Merge branch 'drm-nouveau-next' of git://git.freedesktop.org/git/nouveau/linux-2.6 into drm-next

* 'drm-nouveau-next' of git://git.freedesktop.org/git/nouveau/linux-2.6: (353 commits)
  drm/nouveau: remove allocations from gart populate() hook
  drm/nvc0/fb: slightly improve PMFB intr handling, move out of nvc0_graph.c
  drm/nvc0/fifo: avoid touching missing subfifos
  drm/nvd9/disp: bail out of mode_set_base if no fb bound to crtc
  drm/nvd9/disp: stub some more api hooks so we don't oops on resume
  drm/nouveau: fix printk typo in ioremap failure path
  drm/nvc0/pm: minor clock readback fixes
  drm/nv40/pm: execute memory reset script from vbios
  drm/nv50/gr: refactor initialisation
  drm/nouveau: if requested, try harder at disabling sysmem pushbufs
  drm/nv50/gr: enable ctxprog xfer only when we need it to save power
  drm/nouveau/dp: add support for displayport table 0x30
  drm/nouveau/dp: return master dp table pointer too when looking up encoder
  drm/nouveau/bios: simplify U/d table hash matching func to just match
  drm/nouveau/dp: preserve non-pattern bits in DP_TRAINING_PATTERN_SET
  drm/nvc0/gr: remove MODULE_FIRMWARE() lines
  drm/nouveau/dp: use alternate lane mask for nvaf
  drm/nouveau/dp: link rate scripts are selected with a comparison table
  drm/nv40/pm: write nv40-specific reclocking routines
  drm/nv40/pm: parse geometric delta clock from vbios
  ...

drm/nouveau: remove allocations from gart populate() hook

Since some somewhat questionable changes a while back, TTM provides a
completely empty array of struct dma_address that stays around for the
entire lifetime of the TTM object.

Lets use this array, *always*, rather than wasting yet more memory on
another array who's purpose is identical, as well as yet another bool array
of the same size saying *which* of the previous two arrays to use...

This change will also solve the high order allocation failures seen by
some people while using nouveau.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvc0/fb: slightly improve PMFB intr handling, move out of nvc0_graph.c

I'm still not certain how to determine the number of SUBPs are present on
a given board.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvc0/fifo: avoid touching missing subfifos

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd9/disp: bail out of mode_set_base if no fb bound to crtc

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd9/disp: stub some more api hooks so we don't oops on resume

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: fix printk typo in ioremap failure path

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvc0/pm: minor clock readback fixes

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nv40/pm: execute memory reset script from vbios

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nv50/gr: refactor initialisation

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: if requested, try harder at disabling sysmem pushbufs

On >=nv50, userspace would still end up allocating pushbufs in GART.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nv50/gr: enable ctxprog xfer only when we need it to save power

This patch adds instructions to ctxprog and by doing, impacts context
switching performance.  My testcase showed a 1% performance cost using
glxgears that is a context-switch bound application.

Please test and report bugs/performance/power/other.

Many thanks to Maxim Levitsky for his dedicated work on lowering power
consumption with nouveau.

More patches are coming thanks to his work:

https://bugs.freedesktop.org/show_bug.cgi?id=37922

Signed-off-by: Martin Peres <martin.peres@ensi-bourges.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/dp: add support for displayport table 0x30

Written from observations of my NVD9's vbios, completely untested due to
my NVD9 lacking actual DisplayPort connectors..

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/dp: return master dp table pointer too when looking up encoder

Will need to be able to distinguish 2.0/2.1 from 3.0 soon.  Also, move
the vbios parsing to nouveau_dp where it belongs.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/bios: simplify U/d table hash matching func to just match

The caller is now responsible for parsing its own lists (or whatever) of
possible encoders.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/dp: preserve non-pattern bits in DP_TRAINING_PATTERN_SET

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvc0/gr: remove MODULE_FIRMWARE() lines

We don't use these by default anymore, and there's been complaints from a
number of places thinking that the firmware blobs are required still.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/dp: use alternate lane mask for nvaf

Naturally...  Because Macs can't just be the same as everything else
now can they?

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/dp: link rate scripts are selected with a comparison table

Not hardcoded as originally thought.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nv40/pm: write nv40-specific reclocking routines

Not 100% perfect yet, but a good start towards what it'll look like in the
end.

Actually seems stable on a NV44 I have here, as much as running around OA
for a fair amount of time constantly switching between performance levels
can prove..

My NV49 isn't quite so happy, and semaphores mess up somehow (sometimes) as
a result of the memory reclocking.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nv40/pm: parse geometric delta clock from vbios

This changes the meaning of what we reported as "core" clock previously.

The shader/rop units are allegedly supposed to be run at the base clock
listed in the perf table, while the geometric clock can be bumped from
this value on some boards.

So that we can report both, we'll report the base clock as "shader" (since
the shaders *do* run at it), and the geometric clock as "core".

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/dp: enable down-spread if vbios and sink support it

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/dp: execute some more vbios tables relating to link rate

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/dp: store unencoded link_bw everywhere

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/dp: restructure link training code

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/dp: pass in required datarate to link training

Not used currently, but it will be used in preference to pre-determined
lane/bandwidth numbers at a later point.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/bios: check for null script pointers in parser

Allows us to be lazy elsewhere...

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nva3/backlight: add suppport for newer style backlight regs

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nv50/backlight: express brightness level in percent

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nv50/backlight: take the sor into account when bashing regs

I'm sure that out there somewhere, someone will need this.  We currently
haven't seen an example of LVDS being on a non-0 SOR so far though.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/backlight: make more consistent with rest of driver style

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: tidy connector hotplug handler, punt messages to debug

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/dp: remove reliance on vbios for native displayport

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/dp: rewrite auxch transaction routines

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: workaround semaphore hw bug causing unnecessary interrupts

The HW will only accept the DMA_FROM_MEMORY class for DMA_SEMAPHORE without
asking the driver to intervene.

It appears that semaphores will work correctly even without DMA_IN_MEMORY,
so lets avoid the large amount of interrupts generated by x-chan sync.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/tmr: fix miscalculation of ratio on pre-nv4x chipsets

The clock_get() hook returns KHz, not Hz.

Also fixed to use crystal freq from dev_priv.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nva3/pm: fixup for NVAF special

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nva3/pm: use crystal freq where appropriate

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: determine timing crystal freq from straps

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nva3/pm: pll disabled if bit 0 of ctrl not set

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: magic to make auxch on new macbooks booted in EFI mode work

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/pm: Document and expose CL and WR for 0x1002Cx

Signed-off-by: Roy Spliet <r.spliet@student.tudelft.nl>

drm/nouveau/pm: add initial NV3x/NVCx memtiming support, improve other cards

NV30: Create framework for memtm
NV50: Improve reg creation,
NV50: Use P.version instead of card codename/stepping,
NVC0: Initial memtiming code for Fermi,
Renamed regs for consistency,
Overall redesign to improve readability,
Avoid kfree on null-pointer

Signed-off-by: Roy Spliet <r.spliet@student.tudelft.nl>

drm/nouveau: remove special-casing of hotplug detection type

If we support PGPIO interrupts, and know a hotplug GPIO tag for a
connector we use HPD, otherwise POLL_CONNECT.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0: no page flipping at the moment

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvc0/gr: remove max tpc count info

Just assume a max of 16 everywhere, and hope it's okay.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0: lets not attempt to dereference a nv50_display pointer

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: enable hwmon support when both nouveau/hwmon are built as modules.

The nouveau hwmon temperature support currently only functions when hwmon is
compiled into the kernel. There's no reason why this shouldn't also work when
both hwmon and nouveau are modularised (as is the case with Slackware's stock
kernels).

Signed-off-by: Ken Milmore <ken.milmore@googlemail.com>
Reviewed-by: Martin Peres <martin.peres@ensi-bourges.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: tidy up what we have so far

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: rewrite irq handler, should be somewhat sturdier now

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: do modeset irq handling from tasklet

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: untested LVDS support

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: track down fb positioning method

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: determine U table config in or_mode_set()

Takes a gamble and presumes that we can safely store something random in
OR_MODE_CTRL+4, the hw doesn't seem to mind...

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: dac load detect

VBIOS does more than this, as does nv50/nvc0 driver in nouveau.  Traces
of the NVIDIA binary driver however, show pretty much just this being
done...  Seems to work for me, it'll be fine for the moment.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: handle sync polarity, kill off some unknown

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: scaling

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: push the update button in mode_set_base()

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: fixup clut so it actually works

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: initial attempt at modeset irq handling

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: stub dac load detect, prevents oops

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: dac encoder module

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: extend the init voodoo to cover crtcs

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: remove lp reordering from vram dmaobj, create fb dmaobjs

Fixes CLUT being messed up.  Mostly.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: some magic to make evo happeir

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: they moved the linear flag..

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: initial crtc object implementation

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: skeletal handling of modeset interrupts

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: start on SOR encoder functions

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: setup a couple of dma objects we'll need

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: start on interrupt handling

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: whip up some basic dma handling for the evo channels

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/disp: very initial evo setup

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/bios: allow passing in crtc to the init table parser

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/pm: enable clock/voltage hooks

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/bios: fix INIT_GPIO for new chipsets

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/gpio: initial implementation

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0/i2c: initial implementation

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: initial chipset description for nvdX chipsets

All the non-stubbed functions should be okay for this chipset, the rest
will be added back as they're figured out.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: allow modeset module option to select 'headless mode'

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: fixup init/fini sequence to deal with no CRTCs

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: make general drm modesetting init common

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvd0: add a card_type for 0xdX chipsets

These are different enough from 0xcX to justify it, half fermi, half
kepler(??)..

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nv04/pm: recalibrate timer on nvclk changes

Signed-off-by: Martin Peres <martin.peres@ensi-bourges.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau/tmr: calibrate for ns timestamps on init

We previously assumed (incorrectly a lot of the time) that PTIMER would
be programmed at a frequency which'd give its 64-bit timestamps in
nanoseconds.

By programming PTIMER ourselves, we avoid this problem.

Reviewed-by: Martin Peres <martin.peres@ensi-bourges.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvc0/gr: unblacklist nvcf acceleration

Reported to be working.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: don't complain for disabled timingset entries

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvc0/gr: copy GPC mpart config from PFFB

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvc0/vram: support non-uniform memory size per controller

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvc0/gr: add support for nvcf chipset

untested, written from a trace, accel disabled by default until it is

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: allow a nouveau_mm to be created with holes

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: embed nouveau_mm

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nv31/mpeg: support for a single class3174 user

Uncertain if/how the hw does multiple PMPEG channels, supporting one is
better than none however.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: rename nv40_mpeg to nv31_mpeg

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvc0/pm: more complete parsing of clock domains

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nvc0/pm: initial implementation of clocks_get()

Not too certain on memory clock yet, but it gets the right numbers for
each perflvl on my NVC0.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nva3/pm: idle graphics engine before changing clocks

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nouveau: add function to wait until a callback returns true

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nv50/gr: insert set/clr of a ctxprog flag at start/end of ctxprog

The set will be replaced with a wait on the same flag by a subsequent
commit in order to halt a ctxprog's execution temporarily.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drm/nva3/pm: tidy and add some comments here and there

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>