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This avoids many pipeline stalls in cairo-gl.
[ # ] backend test min(s) median(s) stddev. count
Before:
[ 0] gl firefox-talos-gfx 36.799 36.851 2.34% 3/3
[ 0] gl firefox-talos-svg 33.429 35.360 3.46% 3/3
After:
[ 0] gl firefox-talos-gfx 35.895 36.250 0.48% 3/3
[ 0] gl firefox-talos-svg 26.669 29.888 5.34% 3/3
This doesn't avoid all the pipeline stalls because the kernel reports
!busy for buffers on the flushing list. That should be fixed in .36.
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There were entries to this function (most imporantly, prepare_render
-> update_renderbuffers) that wouldn't have had NEW_BUFFERS set, but
brw_wm_surface_state (the i965 state tracking the drawing regions)
expected this to change.
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The new API makes so much more sense, I'd like to forget how the old
one worked.
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The slightly less mechanical change of converting the emit_reloc calls
will follow.
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The support for XRGB8888 appeared in the 855 and 865, and this format
is reserved on 830/845. This should fix a regression from
b4a6169412819cc3a027c6a118f0537911145a30 that caused hangs in etracer
on 845s.
Bug #26557.
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Fixes piglit fxt1-teximage since
7554b83a21bd62b20df5a7327b69f08108ac9ab6, and also OGLC tests that hit
FXT1 with a million other things.
Bug #28184.
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The pixel transfer rules state that we must set alpha to 1.0 in this case
which we can't easily do with the blitter. We can do to passes: one that
sets the alpha to 0xff and one that copies the RGB bits or we can just
use the 3D engine. Neither approach seems worth it for this case.
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Fixes the assert (and buffer overrun):
glknots: intel_batchbuffer.c:164: _intel_batchbuffer_flush: Assertion
'used >= batch->buf->size' failed.
Reported in bug:
Bug 28274 - xscreensaver's glknots hangs GPU (945GME/Pineview)
https://bugs.freedesktop.org/show_bug.cgi?id=28274
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Signed-off-by: Zou Nan hai <nanhai.zou@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
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We could potentially do this on G45 as well, though the units are
different. On 965, the timestamp is tied to hclk, which would make
supporting it harder.
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This is a workaround for Ironlake errata. The emit_mi_flush is used
for a few purposes:
1) Flushing write caches for RTT (including blit to texture)
2) Pipe fencing for sync objects
3) Spamming cache flushes to track down cache flush bugs
Spamming cache flushes seems less important than following the docs,
and we should probably do that with a different mechanism than the one
for render cache flushes.
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We should be able to do 16, but are limited by Mesa's static buffer
allocations.
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Before we would throttle in the flush callback prior to round-tripping
to the server to do copyregion or swapbuffer. Now, instead just note
that we need to throttle and do it in intel_prepare_render(), which
will be called after receiving the response from the server but before
we start rendering the next frame. Even if the server also throttles
us in swapbuffer, this just makes the throttling a no-op when we hit
intel_prepare_render(). With that we can drop the
using_dri2_swapbuffers hack and just always throttle.
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The initial call to intel_draw_buffers() happens when
intel->ctx.DrawBuffer is still NULL. Call it again after
calling _mesa_make_current().
https://bugs.freedesktop.org/show_bug.cgi?id=28112
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Note that we don't support arbitrary block size for compressed quite
yet -- block height of 4 is hard-coded all over the place.
Bug #27098 (srgb dxt1 producing a bytes per pixel of 0).
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While sometimes rendering occurs in the form of blits for TexImage, it
doesn't interact with the window system renderbuffers, so skip it.
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Now that intel_flush() deosn't use the needs_mi_flush argument, we can
finally drop one of the two flush functions.
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Without this patch, any old intel_flush() call will cause a round trip to
the server and do a copy from fake to real front. We only actually
guarantee that frontbuffer results show up when glFlush() ia called, so
move the flushing to intel_glFlush().
We also need to flush fake to front before getting new buffers, but
we just handle that manually.
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When we call intel_prepare_render() from intelReadPixels(), we'll mark
the front buffer dirty. That's silly, since we're only reading from it
and marking it dirty will cause us to copy from fake front to front
eventually.
Just clear the dirty flag after doing the read.
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Now that we have intel_prepare_render() in place, we can use it to mark
the front buffer dirty if we're rendering to the front buffer once we
get there.
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This prevents memory usage explosion in blender due to the state cache
hanging on to old fake frontbuffer regions. Sigh at blender still
using frontbuffer rendering.
Bug #24119.
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Noted on the mailing list for an app that puts each glyph for its text
into a separate texture.
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Conflicts:
src/mesa/drivers/dri/common/dri_util.h
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Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Rename old IGDNG to Ironlake, and set 'gen' number for
Ironlake as 5, so tracking the features with generation num
instead of special is_ironlake flag.
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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We were doubling up the offsets for the mipmap levels for CPU access.
Instead of reimplementing i945_miptree_layout_2d with 6 cube images
separated by qpitch, share that function and provide the level offsets
later.
Fixes piglit cubemap and fbo-cubemap.
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Add a new DRI2 configuration query extension. Allows for DRI2 client
code to query for common DRI2 configuration options.
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Make sure we have up to date buffers before we start looking at
the tiling bits to determine how to clear.
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