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

When "buffer in list" check does not pass, don't free validation lists - they were
not initialized yet.

Fixes this oops:

[drm] nouveau 0000:02:00.0: push 105 buffer not in list
BUG: unable to handle kernel NULL pointer dereference at 000000000000057c
IP: [<ffffffff81236aa4>] do_raw_spin_lock+0x14/0x13c
PGD 1ac6cb067 PUD 1aaa52067 PMD 0
CPU 0
Modules linked in: nouveau ttm drm_kms_helper snd_hda_codec_realtek snd_hda_intel snd_hda_codec

Pid: 6265, comm: OilRush_x86 Not tainted 2.6.38-rc6-nv+ #632 System manufacturer System Product Name/P6T SE
RIP: 0010:[<ffffffff81236aa4>]  [<ffffffff81236aa4>] do_raw_spin_lock+0x14/0x13c
(...)
Process OilRush_x86 (pid: 6265, threadinfo ffff8801a6aee000, task ffff8801a26c0000)
 0000000000000000 ffff8801ac74c618 0000000000000000 0000000000000578
 0000000000000000 ffff8801ac74c618 0000000000000000 ffff8801bd9d0000
 [<ffffffff81417f78>] _raw_spin_lock+0x1e/0x22
 [<ffffffffa00a2746>] nouveau_bo_fence+0x2e/0x60 [nouveau]
 [<ffffffffa00a540b>] validate_fini_list+0x35/0xeb [nouveau]
 [<ffffffffa00a54d3>] validate_fini+0x12/0x31 [nouveau]
 [<ffffffffa00a6386>] nouveau_gem_ioctl_pushbuf+0xe94/0xf6b [nouveau]
 [<ffffffff8141ac56>] ? sub_preempt_count+0x9e/0xb2
 [<ffffffff81417e94>] ? _raw_spin_unlock_irqrestore+0x30/0x4d
 [<ffffffff8105dea2>] ? __wake_up+0x3f/0x48
 [<ffffffff812aebb4>] drm_ioctl+0x289/0x361
 [<ffffffff8141ac56>] ? sub_preempt_count+0x9e/0xb2
 [<ffffffffa00a54f2>] ? nouveau_gem_ioctl_pushbuf+0x0/0xf6b [nouveau]
 [<ffffffff8141ac56>] ? sub_preempt_count+0x9e/0xb2
 [<ffffffffa010caa2>] nouveau_compat_ioctl+0x16/0x1c [nouveau]
 [<ffffffff81142c0d>] compat_sys_ioctl+0x1c8/0x12d7
 [<ffffffff814179ca>] ? trace_hardirqs_off_thunk+0x3a/0x6c
 [<ffffffff81058099>] sysenter_dispatch+0x7/0x30
 [<ffffffff8141798e>] ? trace_hardirqs_on_thunk+0x3a/0x3c
RIP  [<ffffffff81236aa4>] do_raw_spin_lock+0x14/0x13c
 RSP <ffff8801a6aefb88>
---[ end trace 0014d5d93e6147e1 ]---

Additionally, don't call validate_fini twice in case of validation failure.
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Maarten Maathuis <madman2003@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Appears to be fixed with commit:

"drm/nv50-nvc0: make sure vma is definitely unmapped when destroying bo"
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

This allows libkms to make an easier decision.
Signed-off-by: Dave Airlie <airlied@redhat.com>

We're coming to see a need to have a set of generic capability checks in
the core DRM, in addition to the driver-specific ioctls that already
exist.

This patch defines an ioctl to do as such, but does not yet define any
capabilities.

[airlied: drop the driver callback for now.]
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

hdmi 1.3 raises the max clock from 165 Mhz to 340 Mhz.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

* korg/drm-radeon-cayman:
  drm/radeon/kms: add cayman pci ids
  drm/radeon/kms: cayman/evergreen cs checker updates
  drm/radeon/kms/cayman: always set certain VGT regs at CP init
  drm/radeon/kms: additional default context regs for cayman
  drm/radeon/kms: add cayman CS check support
  drm/radeon/kms: add radeon_asic entry for cayman
  drm/radeon/kms: add cayman safe regs
  drm/radeon/kms/cayman: add asic init/startup/fini/suspend/resume functions
  drm/radeon/kms: add cayman asic reset support
  drm/radeon/kms: add support for cayman irqs
  drm/radeon/kms: add support for CP setup on cayman asics
  drm/radeon/kms: add support for cayman gart setup
  drm/radeon/kms: add gpu_init function for cayman
  drm/radeon/kms: add ucode loader for cayman
  drm/radeon/kms: add cayman chip family

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

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

These should be handled by the clear_state setup, but set them
directly as well just to be sure.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

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

Added to existing evergreen CS checker.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

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

For the CS checker.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Cayman is different enough from evergreen to warrant it's own functions.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

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

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

Cayman asics have 3 ring buffers:
ring 0 supports both gfx and compute
rings 1 and 2 are compute only

At the moment we only support ring 0.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

This patch sets up the gart in legacy mode.  We
probably want to switch to full VM mode at some point.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

This may some work to get accel going.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

The MC ucode is no longer loaded by the vbios
tables as on previous asics.  It now must be loaded
by the driver.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Cayman is DCE5 display plus a new 4-way shader block.
3D state programming is similar to evergreen.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

This allows userspace to work out how many DBs there are
for conditional rendering to work.
Signed-off-by: Dave Airlie <airlied@redhat.com>

This could free things twice, just deref the GEM object
and hope its enough.
Signed-off-by: Dave Airlie <airlied@redhat.com>

This lets r600g enable texture formats and some more extensions.
Signed-off-by: Dave Airlie <airlied@redhat.com>

This is required for NV_conditional_render and EXT_transform_feedback.

v2: add evergreen support.
Signed-off-by: Dave Airlie <airlied@redhat.com>

have to read values from the IB in order as we could cross
a page boundary at any time and won't be able to go backwards.
Signed-off-by: Dave Airlie <airlied@redhat.com>

There are a bunch of off by one errors in the sanity checks here.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

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

* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (50 commits)
  drm/nv50: flesh out ZCULL init and match nvidia on later chipsets
  drm/nv50: support for compression
  drm/nv50-nvc0: delay GART binding until move_notify time
  drm/nouveau: rename nouveau_vram to nouveau_mem
  drm/nvc0: allow creation of buffers with any non-compressed memtype
  drm/nv50-nvc0: unmap buffers from the vm when they're evicted
  drm/nv50-nvc0: move vm bind/unbind to move_notify hook
  drm/nv50-nvc0: restrict memtype to those specified at creation time
  drm/nouveau: pass domain rather than ttm flags to gem_new()
  drm/nv50: simplify bo moves now that they're all through the vm
  drm/nouveau: remove no_vm/mappable flags from nouveau_bo
  drm/nouveau: Fix pageflip event
  drm/nouveau/vbios: parse more gpio tag bits from connector table
  drm/nouveau: decode PFIFO DMA_PUSHER error codes
  drm/nv50: fix typos in CCACHE error reporting
  drm/nvc0: support for sw methods + enable page flipping
  drm/nv50: enable page flipping
  drm/nv50-nvc0: activate/update ds channel's framebuffer on modesets
  drm/nv50-nvc0: initialise display sync channels
  drm/nv50-nvc0: precalculate some fb state when creating them
  ...

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

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

The immediate benefit of doing this is that on NV50 and up, the GPU
virtual address of any buffer is now constant, regardless of what
memtype they're placed in.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

This structure will also be used for GART in the near future.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

This adds a table of known nvc0 memtypes, and modifies the validity check
to allow any non-compressed type.  Support for Z compression will come at
a later point.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

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

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

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

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