This works in conjunction with newer kernels. If we succeed in requesting
interface 1.4, the we know the kernel provides proper domain numbers. If
not, ignore the domain number as it's bogus (except on Alpha).
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
The high layers expect to receive a status code on error (on the
pessimistic assumption that the errno value will have been overwritten
by the time the failure is propagated all the way up), so convert
xf86drmMode.c to return -errno on an ioctl error and be consistent with
the rest of the libdrm API.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
If the mapping succeeds we have a valid pointer. If setting the domain
failures we may incur cache corruption. However the usual failure mode
is because of a hung GPU, in which case it is preferable to ignore the
minor error from setting the domain and continue on oblivious. If
these errors persist, we should rate limit the warning [or even just
remove it].
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Mesa uses the returned pitch from alloc_tiled, so make sure that we set
it correctly before modifying the stride used for the SET_TILING call.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Ensure that the user doesn't attempt to specify a stride to use with a
linear buffer by forcing such to be zero.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
execbuffer() returns ENOSPC if it cannot fit the batch buffer into the
aperture which is the error we want to diagnose here.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Rearrange the cache cleanup so that we always scan following a final
unreference, and guard against multiple scans in a single second.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
When allocating a tiled buffer, if we remove the desired tiling mode due
to it being beyond hardware limits, also remove the stride. This ensures
that we only ever use stride 0 with I915_TILING_NONE.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
As we now expose a method to allocate tiled buffers, it makes more sense
to defer the SET_TILING until required. Besides the slim chance that it
will be a no-op, by delaying the change we are less likely to stall on
waiting for a bound buffer to release a fence register.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
We need to inform the kernel if the tiling stride changes and not only
for changes of the tiling mode.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
We had two cases recently where the rounding to powers of two hurt
badly: 4:2:0 YUV HD video frames would round up from 2.2MB to 4MB, and
Urban Terror was hitting aperture size limitations. For UT, this is
because mipmap trees for power of two texture sizes will land right in
the middle between two cache buckets.
By giving a few more sizes between powers of two, Urban Terror on my
945 ends up consuming 207MB of GEM objects instead of 272MB, and HD
video decode on Ironlake goes from 99MB to 75MB.
cairo-perf-diff of the benchmarks for gl and xlib shows a 1.09x and
1.06x speedup and a 1.07x, 1.08x, and 1.11x slowdown. From this, I
think this patch was really a no-op in terms of performance for these
CPU-bound workloads.
If the pitch is too large for the hardware to tile, recompute the
required surface size based on the untiled pitch and alignments. For the
older hardware, which has smaller limits and greater restrictions, this
may be a considerable saving in allocation size.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This introduces a new API to exec on BSD ring buffer, for H.264 VLD
decoding.
Signed-off-by: Xiang Hai hao <haihao.xiang@intel.com>
Signed-off-by: Zou Nan hai <nanhai.zou@intel.com>
Fixes:
Bug 26686 - Some textures are distorted with libdrm 2.4.18 in GTAVC>A3
http://bugs.freedesktop.org/show_bug.cgi?id=26686
This bug continues to haunt me. The kernel SET_TILING ioctl is
inconsistent in its return values when reporting an error. If one of its
sanity checks fail, then the input values are left unchanged. If the
kernel later fails to change the tiling mode, then the input values are
modified to match the current tiling on the object. In short, userspace
cannot trust the return values upon error and so we must assume that
upon error our current tiling mode matches reality and not update.
This reverts commit 7ca558494d.
This was pushed ahead of an essential review of bo level locking in
mesa, without which we cannot know whether removing this lock is safe.
Currently, all the tests for libdrm are built during 'make all', even
if you do not wish to run tests. Attached is a patch, based on
version 2.4.15, to make the tests build in 'make check'.
Thomas tracked down this error with kdm and commit b509640:
==4320== Invalid write of size 8
==4320== at 0x9A97998: do_bo_emit_reloc (in /usr/lib/libdrm_intel.so.1.0.0)
==4320== by 0x9A97B9C: drm_intel_gem_bo_emit_reloc (in /usr/lib/libdrm_intel.so.1.0.0)
==4320== by 0xAED3234: intel_batchbuffer_emit_reloc (in /usr/lib/xorg/modules/dri/i965_dri.so)
==4320== by 0xAF13827: brw_emit_vertices (in /usr/lib/xorg/modules/dri/i965_dri.so)
==4320== by 0xAF1F14D: brw_upload_state (in /usr/lib/xorg/modules/dri/i965_dri.so)
==4320== by 0xAF12122: brw_draw_prims (in /usr/lib/xorg/modules/dri/i965_dri.so)
==4320== by 0xB256824: vbo_exec_vtx_flush (in /usr/lib/xorg/modules/dri/libdricore.so)
==4320== by 0xB2523BB: vbo_exec_FlushVertices_internal (in /usr/lib/xorg/modules/dri/libdricore.so)
==4320== by 0xB252411: vbo_exec_FlushVertices (in /usr/lib/xorg/modules/dri/libdricore.so)
==4320== by 0xB195A3D: _mesa_PopAttrib (in /usr/lib/xorg/modules/dri/libdricore.so)
==4320== by 0x8DF0F02: __glXDisp_Render (in /usr/lib/xorg/modules/extensions/libglx.xorg)
==4320== by 0x8DF517F: __glXDispatch (in /usr/lib/xorg/modules/extensions/libglx.xorg)
==4320== Address 0x126a8b80 is 0 bytes after a block of size 16,368 alloc'd
==4320== at 0x4C23E03: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==4320== by 0x9A97A64: do_bo_emit_reloc (in /usr/lib/libdrm_intel.so.1.0.0)
==4320== by 0x9A97B9C: drm_intel_gem_bo_emit_reloc (in /usr/lib/libdrm_intel.so.1.0.0)
==4320== by 0xAED3234: intel_batchbuffer_emit_reloc (in /usr/lib/xorg/modules/dri/i965_dri.so)
==4320== by 0xAF191DB: upload_binding_table_pointers (in /usr/lib/xorg/modules/dri/i965_dri.so)
==4320== by 0xAF1F14D: brw_upload_state (in /usr/lib/xorg/modules/dri/i965_dri.so)
==4320== by 0xAF12122: brw_draw_prims (in /usr/lib/xorg/modules/dri/i965_dri.so)
==4320== by 0xB255EF6: vbo_exec_DrawArrays (in /usr/lib/xorg/modules/dri/libdricore.so)
==4320== by 0x8DF67A3: __glXDisp_DrawArrays (in /usr/lib/xorg/modules/extensions/libglx.xorg)
==4320== by 0x8DF0F02: __glXDisp_Render (in /usr/lib/xorg/modules/extensions/libglx.xorg)
==4320== by 0x8DF517F: __glXDispatch (in /usr/lib/xorg/modules/extensions/libglx.xorg)
==4320== by 0x446293: ??? (in /usr/bin/Xorg)
which is simply due to only allocating space for the pointers and not
the structs themselves. D'oh.
Reported-by: Thomas Bächler <thomas@archlinux.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This reverts commit 245d695779.
libdrm now install headers in ${includedir}/libdrm and /usr/include/drm
is reserved for the kernel headers. We should only ever add one of these
to the CFLAGS.
The motivation behind this is that by shipping it here, it's essentially
an API which causes issues while bisecting across changes to the header
files.
Carl Worth
Chris Wilson
Ben Skeggs
Jesse Barnes
Eric Anholt
Benjamin Herrenschmidt
Dave Airlie
Fernando Carrijo
Zou Nan hai
Jesse Barnes
Daniel Stone
Jonathan Callen
Kristian Høgsberg
Michel Dänzer
Jesse Barnes
Marek Olšák
Alan Coopersmith