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  1. 02 10月, 2012 2 次提交
    • R
      drm: support for rotated scanout · 7c80e128
      由 Rob Clark 提交于 
      For drivers that can support rotated scanout, the extra parameter
checking in drm-core, while nice, tends to get confused.  To solve
this drivers can set the crtc or plane invert_dimensions field so
that the dimension checking takes into account the rotation that
the driver is performing.

v1: original
v2: remove invert_dimensions from plane, at Ville's suggestion.
    Userspace can give rotated src coordinates, so invert_dimensions
    is not required for planes.
Signed-off-by: NRob Clark <rob@ti.com>
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>
      7c80e128
    • R
      drm: refcnt drm_framebuffer (v4.1) · f7eff60e
      由 Rob Clark 提交于 
      This simplifies drm fb lifetime, and if the crtc/plane needs to hold
a ref to the fb when disabling a pipe until the next vblank, this
avoids the need to make disabling an overlay synchronous.  This is a
problem that shows up when userspace is using a drm plane to
implement a hw cursor.. making overlay disable synchronous causes
a performance problem when x11 is rapidly enabling/disabling the
hw cursor.  But not making it synchronous opens up a race condition
for crashing if userspace turns around and immediately deletes the
fb.  Refcnt'ing the fb makes it possible to solve this problem.

v1: original
v2: add drm_framebuffer_remove() which is called in all paths where
    fb->funcs->destroy() was directly called before.  This cleans
    up the CRTCs/planes that the fb was attached to.  You should
    only directly use drm_framebuffer_unreference() if you are also
    using drm_framebuffer_reference() to keep a ref to the fb.
v3: add comment explaining the fb refcount
v4: remove duplicate 'list_del(&fb->filp_head)'

[airlied: v4.1: fix local rejection]
Signed-off-by: NRob Clark <rob@ti.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>
      f7eff60e
  3. 26 9月, 2012 1 次提交
  5. 20 9月, 2012 2 次提交
    • C
      drm/i915: Replace the array of pages with a scatterlist · 9da3da66
      由 Chris Wilson 提交于 
      Rather than have multiple data structures for describing our page layout
in conjunction with the array of pages, we can migrate all users over to
a scatterlist.

One major advantage, other than unifying the page tracking structures,
this offers is that we replace the vmalloc'ed array (which can be up to
a megabyte in size) with a chain of individual pages which helps reduce
memory pressure.

The disadvantage is that we then do not have a simple array to iterate,
or to access randomly. The common case for this is in the relocation
processing, which will typically fit within a single scatterlist page
and so be almost the same cost as the simple array. For iterating over
the array, the extra function call could be optimised away, but in
reality is an insignificant cost of either binding the pages, or
performing the pwrite/pread.

v2: Fix drm_clflush_sg() to not invoke wbinvd as well! And fix the
trivial compile error from rebasing.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      9da3da66
    • B
      drm/i915: placeholder getparam · 8c0bd3c0
      由 Ben Widawsky 提交于 
      There are internal patches for a feature which require a parameter to
query whether support exists . These patches cannot be made external
yet. In order to keep existing tests and userspace happy and free from
conflicts, reserve a number for it.
Signed-off-by: NBen Widawsky <ben@bwidawsk.net>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      8c0bd3c0
  7. 18 9月, 2012 3 次提交
  9. 17 9月, 2012 1 次提交
  11. 13 9月, 2012 1 次提交
  13. 24 8月, 2012 4 次提交
  15. 22 8月, 2012 1 次提交
  17. 17 8月, 2012 1 次提交
    • D
      drm/i915: implement dma buf begin_cpu_access (v2) · ec6f1bb9
      由 Dave Airlie 提交于 
      In order for udl vmap to work properly, we need to push the object
into the CPU domain before we start copying the data to the USB device.

This along with the udl change avoids userspace explicit mapping to
be used.

v2: add a flag for userspace to query to know if Intel kernel driver can
deal with the vmap flushing properly. In theory udl would need a flag also,
but I intend to push the patches very close to each other and other drivers
should do the right thing from the start.

I've added a test to my intel-gpu-tools prime branch, however testing
this is a bit messy since the only way to get udl to vmap is to rendering
something. I've tested this with real code as well to make sure it works.
Signed-off-by: NDave Airlie <airlied@redhat.com>
[danvet: resolved conflict, which required reallocating the PARAM
number to 21.]
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      ec6f1bb9
  19. 13 8月, 2012 2 次提交
  21. 08 8月, 2012 1 次提交
    • C
      drm/i915: Add I915_GEM_PARAM_HAS_SEMAPHORES · 2fedbff9
      由 Chris Wilson 提交于 
      Userspace tries to estimate the cost of ring switching based on whether
the GPU and GEM supports semaphores. (If we have multiple rings and no
semaphores, userspace assumes that the cost of switching rings between
batches is exorbitant and will endeavour to keep the next batch on the
active ring - as a coarse approximation to tracking both destination and
source surfaces.) Currently userspace has to guess whether semaphores
exist based on the chipset generation and the module parameter,
i915.semaphores. This is a crude and inaccurate guess as the defaults
internally depend upon other chipset features being enabled or disabled,
nor does it extend well into the future. By exporting a HAS_SEMAPHORES
parameter, we can easily query the driver and obtain an accurate answer.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
      2fedbff9
  23. 27 7月, 2012 1 次提交
  25. 26 7月, 2012 5 次提交
  27. 24 7月, 2012 1 次提交
  29. 20 7月, 2012 9 次提交
  31. 16 7月, 2012 1 次提交
    • C
      drm: Add colouring to the range allocator · 6b9d89b4
      由 Chris Wilson 提交于 
      In order to support snoopable memory on non-LLC architectures (so that
we can bind vgem objects into the i915 GATT for example), we have to
avoid the prefetcher on the GPU from crossing memory domains and so
prevent allocation of a snoopable PTE immediately following an uncached
PTE. To do that, we need to extend the range allocator with support for
tracking and segregating different node colours.

This will be used by i915 to segregate memory domains within the GTT.

v2: Now with more drm_mm helpers and less driver interference.
Signed-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Airlie <airlied@redhat.com
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NDave Airlie <airlied@gmail.com>
      6b9d89b4
  33. 22 6月, 2012 1 次提交
  35. 14 6月, 2012 2 次提交
    • B
      drm/i915/context: switch contexts with execbuf2 · 6e0a69db
      由 Ben Widawsky 提交于 
      Use the rsvd1 field in execbuf2 to specify the context ID associated
with the workload. This will allow the driver to do the proper context
switch when/if needed.

v2: Add checks for context switches on rings not supporting contexts.
Before the code would silently ignore such requests.
Signed-off-by: NBen Widawsky <ben@bwidawsk.net>
      6e0a69db
    • B
      drm/i915/context: create & destroy ioctls · 84624813
      由 Ben Widawsky 提交于 
      Add the interfaces to allow user space to create and destroy contexts.
Contexts are destroyed automatically if the file descriptor for the dri
device is closed.

Following convention as usual here causes checkpatch warnings.

v2: with is_initialized, no longer need to init at create
drop the context switch on create (daniel)

v3: Use interruptible lock (Chris)
return -ENODEV in !GEM case (Chris)
Signed-off-by: NBen Widawsky <ben@bwidawsk.net>
      84624813
  37. 13 6月, 2012 1 次提交