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

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

Upcoming patches are going to enable full support for buffers that keep
a constant GPU virtual address whenever they're validated for use by
the GPU.

In order for this to work properly while keeping support for large pages,
we need to know if it's ever going to be possible for a buffer to end
up in GART, and if so, disable large pages for the buffer's VMA.

This is a new restriction that's not present in earlier kernel's, but
should not break userspace as the current code never attempts to validate
buffers into a memtype other than it was created with.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

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

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

'mappable' isn't really used at all, nor is it necessary anymore as the
bo code is capable of moving buffers to mappable vram as required.

'no_vm' isn't necessary anymore either, any places that don't want to be
mapped into a GPU address space should allocate the VRAM directly instead.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Assign correct event when initializing nouveau_page_flip_state.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

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

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

The code was supposed to print registers around 0x405018 (which is read
earlier), not 0x405818.
Signed-off-by: NMarcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

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

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

The hw doesn't really appear to be designed to be used the way we have to
use it due to DRI2's design.  This leads us to having to keep the flipped
fb support active at all times.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Also imports a couple of helper functions that'll be used to implement
page flipping in the following commits..
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Just a cleanup, to avoid duplicating parts of nv50_crtc.c's code in
the page flipping routines.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

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

This should prevent a number of races from occuring, the most obvious of
which will be exposed when we start making use of the "display sync" evo
channel for page flipping.  The DS channel will reject any command stream
that doesn't completely agree with the current "master" state.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

We need to be able to have the bh run while possibly spinning waiting for
the EVO notifier to signal.  This apparently happens in some circumstances
with preempt disabled, so our workqueue was never being run.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

The nv50 display isr bh needs to be converted to a tasklet, which means
we can't sleep anymore.  The places we execute vbios init tables are
rare, and not in any way performance critical, so this isn't a huge
problem.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

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

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

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

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

More appropriate, and we're about to be using more than just the master
EVO channel.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

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

With cmwq, there's no reason for nouveau to use a dedicated workqueue.
Drop dev_priv->wq and use system_wq instead.  Each work item is sync
flushed when the containing structure is unregistered/destroyed.

Note that this change also makes sure that nv50_gpio_handler is not
freed while the contained work item is still running.
Signed-off-by: NTejun Heo <tj@kernel.org>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Signed-off-by: NLucas Stach <dev@lynxeye.de>
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

This gives a small, but noticeable performance gain at lower performance
levels, and unchanged at the higher ones.

With this commit, we're now using the same timeslice size as the NVIDIA
binary driver currently does, and dropping an unknown bit that NVIDIA
no longer appear to set.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

We may well be making more use of semaphores in the future, having the
entire VM available makes requiring DMA objects for each and every
semaphore block unnecessary.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

Evil, evil chipset.  Worst of both worlds.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

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

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

And also, don't disable PFIFO IRQs completely whenever we recieve one,
just when we don't know about it already.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

These are the same semaphores nvc0 will use, and they potentially allow
us to do much cooler things than our current inter-channel sync impl.

Lets switch to them where possible now for some testing.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

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

v2. moved nv44 pciegart table back to instmem, where it's not
    accessible by userspace clients.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

In preparation for the addition of a new nv40 backend, we'll need to be
able to distinguish between a paged dma object and the on-chip GART.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

In preparation for the addition of a new nv40 pcie backend.
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>

This reverts commit 5a893fc2.

This causes a use after free in the ttm free alloc pages path,
when it tries to get the be after the be has been destroyed.
Signed-off-by: NDave Airlie <airlied@redhat.com>