If we reject the front buffer because it has too large a stride, repeat
the allocation using untiled for the cases where we can utilize laxer
hardware restrictions.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Avoid a potential use-after-free of the copied mode string by reusing
the converted kernel mode on resize.
==19897== Invalid read of size 8
==19897== at 0x661C330: ??? (strcpy.S:1308)
==19897== by 0x8618AE7: drmmode_set_mode_major (drmmode_display.c:293)
==19897== by 0x8618E6F: drmmode_xf86crtc_resize (drmmode_display.c:1299)
==19897== by 0x529A77: xf86RandR12ScreenSetSize (xf86RandR12.c:708)
==19897== by 0x4BD528: ProcRRSetScreenSize (rrscreen.c:301)
==19897== by 0x42B820: Dispatch (dispatch.c:432)
==19897== by 0x4254C9: main (main.c:289)
==19897== Address 0x72e91e0 is 0 bytes inside a block of size 9 free'd
==19897== at 0x4C23DBC: free (vg_replace_malloc.c:325)
==19897== by 0x48424F: xf86DeleteMode (xf86Mode.c:1921)
==19897== by 0x4942B7: xf86ProbeOutputModes (xf86Crtc.c:1572)
==19897== by 0x5290BB: xf86RandR12GetInfo12 (xf86RandR12.c:1551)
==19897== by 0x5313AE: RRGetInfo (rrinfo.c:202)
==19897== by 0x4BCCAA: rrGetScreenResources (rrscreen.c:337)
==19897== by 0x42B820: Dispatch (dispatch.c:432)
==19897== by 0x4254C9: main (main.c:289)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Unwind the array of Pixmaps already allocated and report failure for the
old dri GetBuffers() path.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
After splitting out the i810 driver into its own legacy directory, we
can identify the common routines not as i830 but as intel. This
clarifies the code which *is* i830 specific.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
The driver is still built but is no longer under active development so
move it and supporting files to a new directory.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
If the source is outside the drawable, then CopyArea will fail to
initialise the source correctly. The simplest fix in this case is to
fallback to pixman to generate the source texture.
Fixes:
Bug 28497 - Graphics corruption after opening a specific website
https://bugs.freedesktop.org/show_bug.cgi?id=28497
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Tiling on gen 2/3 hardware is only supported for pitches up to 8192
bytes, so above this limit the surface will be untiled and we will no
longer have to comply with the power-of-two pitch alignment. So
disabling tiling for these too wide surface should ~halve the memory
requirement for the full surface.
Also the absolute limit for the 2D blitter is 32,768 bytes. The
documentation says "up to 32,768 bytes" and my PineView box was
malfunction with a surface stride of 32,768 so set the limit to be
32,767.
References:
Bug 28497 - Graphics corruption after opening a specific website
https://bugs.freedesktop.org/show_bug.cgi?id=28497
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Oops, I spent more time discussing these flushing bugs than I spent
paying attention to what I was actually doing.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This is a situation that should not be possible, need_mi_flush being
true but the list of pending flush pixmaps being clear. However, an
earlier bug in doing just that revealed this minor bug. So for
correctness, be careful not to clear need_mi_flush without emitting a
MI_FLUSH.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
The key difference between i965 and earlier, is that the surfaces passed
to the samplers through an indirect table and so the batch and render
target was not being marked dirty by the relocation (since the
relocation only happens within prepare_composite() which may have been
in another batch.) Simply call intel_pixmap_mark_dirty() when binding
the sampler table into the batch to ensure that the dirty is tracked
appropriately.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
As the batch submit may not trigger further drawing through flushing the
vertices, pass the requirement to emit the flush down to the submission
routine so that the flush can be appended after the final commands.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
A slight confusion in computing the correction image location resulted
in the application of the source offsets to the pixel location in the
target and not in the source as intended.
Fixes the visual corruption of the scrollbar in Chromium, and hopefully
the crash reported by Robert Hooker when starting gdm after plymouth.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Now with streaming uploads and downloads for composite operations in
place, shared memory pixmaps are no longer that dire performance wise.
With careful use these can in fact be the most efficient means of
transfer between a wholly software renderer in the client and a backing
store. For instance, Chromium renders internally to an ARGB32 image
buffer and uses a shared pixmap to composite dirty regions into the
backing store. Thereby using the GPU to either perform the blit or the
format conversion. Enabling shared pixmaps, reduces our CPU overhead
whilst scrolling by a factor of 5 or so.
And this is achieved simply by deleting obsolete code!
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
The presumption is that we wish to keep the target hot, so
copy to a new bo and move that to the CPU in preference to
causing ping-pong of the original.
Also the gpu is much faster at detiling.
Before (PineView):
400000 trep @ 0.1128 msec ( 8860.0/sec): GetImage 10x10 square
18000 trep @ 1.3839 msec ( 723.0/sec): GetImage 100x100 square
800 trep @ 30.0987 msec ( 33.2/sec): GetImage 500x500 square
After: (PineView)
180000 trep @ 0.1478 msec ( 6770.0/sec): GetImage 10x10 square
60000 trep @ 0.4545 msec ( 2200.0/sec): GetImage 100x100 square
4000 trep @ 8.0739 msec ( 124.0/sec): GetImage 500x500 square
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Use a single code path to upload the image data after selecting the
right bo, and take advantage of pwrite() when possible.
Fixes:
Bug 28569 - [i965] IGN's flash-based video player crashes X
https://bugs.freedesktop.org/show_bug.cgi?id=28569
Bug 28573 - [i965] Fullscreen flash and windowed SDL games fail to
update the screen
https://bugs.freedesktop.org/show_bug.cgi?id=28573
Reported-and-tested-by: Brian Rogers <brian@xyzw.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
We should be able to eliminate these as the drawable remains unchanged.
However, the implicit flush of BUF_INFO fixes the rendering in KDE.
Alternatively, we need an MI_FLUSH | INHIBIT_RENDER_CACHE_FLUSH between
composites. (Note that it is not stale cache data causing the rendering
corruption and that a pipelined flush is not sufficient either.) Also,
having tried varies points at which to flush, the only place where the
flush is effective seems to be between composite operations - that is a
flush after 2D is not sufficient.
Reported-by: Vasily Khoruzhick <anarsoul@gmail.com>
Reported-by: Clemens Eisserer <linuxhippy@gmail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
After d41684d545 we now allocate all framebuffers as tiled bo, and so
we must be careful to use the appropriate stride as returned from the
allocation, instead of assuming that it is just an aligned width.
Fixes:
Bug 28461 - screen rotation results in corrupted output.
https://bugs.freedesktop.org/show_bug.cgi?id=28461
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-by: Till Matthiesen <entropy@everymail.net>
We depend upon the recent introduction of drm_intel_bo_is_reusable().
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-by: Julien Cristau <jcristau@debian.org>
Fixes:
Bug 28446 - Garbled Font with Mathematica 7
https://bugs.freedesktop.org/show_bug.cgi?id=28446
Rewriting the glyphs to render to the destination directly and removing
the more expensive multiple invocations of CompositePicture per picture
was a great performance boost -- except that it needs special handling
in the backend in order to not fallback. Having done so for i915, I
neglected to ensure the sanity checking in i965_prepare_composite() was
sufficient. As it turns out, it was not and so we misrendered CA-glyphs
when rendering directly to the destination. This causes us to fallback
properly, but is a performance regression as we no longer try the 2-pass
magic helper before resorting to s/w. At the moment, I'd rather live
with the temporary regression and fix i965 to do the same magic as i915,
as it critical to fixing the severe performance issues currently
crippling i965, as I believe that this regression only affects the
minority of applications (incorrect, as it turns out, as the glyphs are
overlapping) rendering directly to the destination.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Even if there is only a single clip rect, since the clip may be smaller
than the drawing rectangle on the destination we need to actually
compute the clipped glyph rectangle.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Following a conversation with Owain G. Ainsworth, it was decided that
the second best approach to handling a wedged GPU was to hope that the
kernel could successfully reset it, which currently is only possible for
i965 and later chipsets.
The best approach is of course to prevent such hangs from ever occurring
in the first place.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
But emit the warning about rendering corruption every time for the
transient errors like out-of-memory.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
When I made libdrm stop overallocating so much memory for the purpose
of bo caching, things started scribbling on the bottom of my
frontbuffer (and vice versa, leading to GPU hangs). We had the usual
mistake of size = tiled_pitch * height instead of size = tiled_pitch *
tile_aligned_height.
Jesse Barnes
Chris Wilson
Carl Worth
Julien Cristau
Gaetan Nadon
Eric Anholt