enable vce states when vce is active.  When vce is active,
it adjusts the currently selected state (performance, battery,
uvd, etc.)

v2: add code comments
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>

TODO: plug in cik_vce_suspend()/resume() so we can enable
vce powergating. See XXX in code.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

VCE dpm dynamically adjusts the uvd clocks on
demand.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

It's needed by by both the asic specific functions and the
extended table parser.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Similar to uvd clock setting.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Also make the result available to userspace.
Signed-off-by: Christian König <christian.koenig@amd.com>

Signed-off-by: Christian König <christian.koenig@amd.com>

Only VCE 2.0 support so far.

v2: squashing multiple patches into this one
v3: add IRQ support for CIK, major cleanups,
    basic code documentation
v4: remove HAINAN from chipset list
Signed-off-by: Christian König <christian.koenig@amd.com>

The CP semaphore queue on CIK has a bug that triggers if uncompleted
waits use the same address while a signal is still pending. Work around
this by using different addresses for each sync.
Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org

Fixes a compile error with debugfs disabled.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

If we take the false branch of the if quoted in the diff below, we
end up doing a return ret, without ever having initialized it.

Picked up by coverity.
Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

When we parse the power tables use the stored mac_vddc value
rather than lookig it up manually each time.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

For btc and newer, we may modify the power state depending
on the circumstances.  Use the modified state rather than
the base state.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Otherwise decoding isn't really useable.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Otherwise decoding isn't really useable.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=71448Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

the evergreen CS parser has allowed this for a while, just port
the code to the r600 one.

This is required before geom shaders can be made work.

v2: agd5f: minor cleanup and add additional 7xx reg.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

Merge tag 'vmwgfx-fixes-3.14-2014-02-05' of git://people.freedesktop.org/~thomash/linux into drm-next

A couple of vmwgfx fixes together with missing bits of legacy device
emulation to facilitate old user-space drivers on new devices.

The shader emulation bits are a bit large, but since they mostly touch the
new device code, regressions are unlikely. I figure the gain of having
this from the start clearly outweighs the risc of adding these bits at
this point.

Pull request of 2014-02-05

* tag 'vmwgfx-fixes-3.14-2014-02-05' of git://people.freedesktop.org/~thomash/linux:
  vmwgfx: Fix unitialized stack read in vmw_setup_otable_base
  drm/vmwgfx: Reemit context bindings when necessary v2
  drm/vmwgfx: Detect old user-space drivers and set up legacy emulation v2
  drm/vmwgfx: Emulate legacy shaders on guest-backed devices v2
  drm/vmwgfx: Fix legacy surface reference size copyback
  drm/vmwgfx: Fix SET_SHADER_CONST emulation on guest-backed devices
  drm/vmwgfx: Fix regression caused by "drm/ttm: make ttm reservation calls behave like reservation calls"
  drm/vmwgfx: Don't commit staged bindings if execbuf fails

Two ttm regression fixes.

Pull request of 2014-02-05

* tag 'ttm-fixes-3.14-2014-02-05' of git://people.freedesktop.org/~thomash/linux:
  drm/ttm: Don't clear page metadata of imported sg pages
  drm/ttm: Fix TTM object open regression

I totally sign inverted my way out of this one.

Cc: stable@vger.kernel.org
Reported-by: "Sabrina Dubroca" <sd@queasysnail.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>

These page pointers shouldn't be visible to TTM in the first place, but
until we fix that up, don't clear the page metadata because that
will upset the exporter.
Reported-and-tested-by: Cristoph Haag <haagch.christoph@googleemail.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>

Commit drm/ttm: ttm object security fixes for render nodes introduced a
regression where, if a TTM object was opened multiple times from the same
open file, the caller would spin uninterruptibly in the kernel.

Fix this.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>

One of the error paths in vmw_setup_otable_base causes us to return with
'ret' having never been set to anything causing us to return whatever was
on the stack.

Found with Coverity
Signed-off-by: Dave Jones <davej@fedoraproject.org>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>

When a context is first referenced in the command stream, make sure that all
scrubbed (as a result of eviction) bindings are re-emitted. Also make sure that
all bound resources are put on the resource validate list.

This is needed for legacy emulation, since legacy user-space drivers will
typically not re-emit shader bindings. It also removes the requirement for
user-space drivers to re-emit render-target- and texture bindings.

Makes suspend and hibernate now also work with legacy user-space drivers on
guest-backed devices.

v2: Don't rebind on legacy devices.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>

GB aware mesa userspace drivers are detected by the fact that they are
calling the vmw getparam ioctl querying DRM_VMW_PARAM_HW_CAPS to detect
whether the device is Guest-backed object capable. For other drivers,
lie about hardware version and send the 3D capabilities in a format they
expect.

v2:
Use DRM_VMW_PARAM_MAX_MOB_MEMORY to detect gb awareness,
Make sure we don't ovwerwrite bounce buffer or write past user-space buffer
indicated size.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>

Command stream legacy shader creation and destruction is replaced by
NOPs in the command stream, and instead guest-backed shaders are created
and destroyed as part of the command validation process.

v2: Removed some stray debug messages.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>

Surfaces created using the guest-backed surface interface only keeps the
base mip size, so only copy that if the legacy surface reference
ioctl requests the size information.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>

Emulate the SET_SHADER_CONST legacy command on guest-backed devices by
issuing a SET_GB_SHADERCONSTS_INLINE command.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>

drm/vmwgfx: Fix regression caused by "drm/ttm: make ttm reservation calls behave like reservation calls"

The call to ttm_eu_backoff_reservation() as part of an error path would cause
a lock imbalance if the reservation ticket was not initialized. This error is
easily triggered from user-space by submitting a bogus command stream.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Cc: stable@vger.kernel.org
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Dave Airlie <airlied@redhat.com>

If execbuf fails and binding commands are never sent to the device,
don't commit the staged context bindings to the tracker.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>

mode->mdev otherwise the bw limits never kick in.

Reported in RHEL testing.

Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

Pull parisc updates from Helge Deller:
 "The three major changes in this patchset is a implementation for
  flexible userspace memory maps, cache-flushing fixes (again), and a
  long-discussed ABI change to make EWOULDBLOCK the same value as
  EAGAIN.

  parisc has been the only platform where we had EWOULDBLOCK != EAGAIN
  to keep HP-UX compatibility.  Since we will probably never implement
  full HP-UX support, we prefer to drop this compatibility to make it
  easier for us with Linux userspace programs which mostly never checked
  for both values.  We don't expect major fall-outs because of this
  change, and if we face some, we will simply rebuild the necessary
  applications in the debian archives"

* 'parisc-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: add flexible mmap memory layout support
  parisc: Make EWOULDBLOCK be equal to EAGAIN on parisc
  parisc: convert uapi/asm/stat.h to use native types only
  parisc: wire up sched_setattr and sched_getattr
  parisc: fix cache-flushing
  parisc/sti_console: prefer Linux fonts over built-in ROM fonts

HPFS needs to load 4 consecutive 512-byte sectors when accessing the
directory nodes or bitmaps.  We can't switch to 2048-byte block size
because files are allocated in the units of 512-byte sectors.

Previously, the driver would allocate a 2048-byte area using kmalloc,
copy the data from four buffers to this area and eventually copy them
back if they were modified.

In the current implementation of the buffer cache, buffers are allocated
in the pagecache.  That means that 4 consecutive 512-byte buffers are
stored in consecutive areas in the kernel address space.  So, we don't
need to allocate extra memory and copy the content of the buffers there.

This patch optimizes the code to avoid copying the buffers.  It checks
if the four buffers are stored in contiguous memory - if they are not,
it falls back to allocating a 2048-byte area and copying data there.
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Previously, hpfs scanned all bitmaps each time the user asked for free
space using statfs.  This patch changes it so that hpfs scans the
bitmaps only once, remembes the free space and on next invocation of
statfs it returns the value instantly.

New versions of wine are hammering on the statfs syscall very heavily,
making some games unplayable when they're stored on hpfs, with load
times in minutes.

This should be backported to the stable kernels because it fixes
user-visible problem (excessive level load times in wine).
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Add support for the flexible mmap memory layout (as described in
http://lwn.net/Articles/91829). This is especially very interesting on
parisc since we currently only support 32bit userspace (even with a
64bit Linux kernel).
Signed-off-by: Helge Deller <deller@gmx.de>