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This simplifies driver code in handling object allocation, and also gives us
an opportunity to possibly cache tiled buffers if it turns out to be a win.
[anholt: This is chopped out of the execbuf2 patch, as it seems to be useful
separately and cleans up the execbuf2 changes to be more obvious]
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This is done with:
Lindent *.[ch]
perl -pi -e 's|drm_intel_bo \* |drm_intel_bo *|g' *.[ch]
perl -pi -e 's|drm_intel_bufmgr \* |drm_intel_bufmgr *|g' *.[ch]
perl -pi -e 's|drm_intel_bo_gem \* |drm_intel_bo_gem *|g' *.[ch]
perl -pi -e 's|drm_intel_bufmgr_gem \* |drm_intel_bufmgr_gem *|g' *.[ch]
perl -pi -e 's|_fake \* |_fake *|g' *.[ch]
hand-editing to whack indented comments into line and other touchups.
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Fixes assertion failures on later use of the object.
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This avoids using the oldest BO in the BO cache and waiting for it to be
idle before we turn around and render to it with the GPU. Thanks to
Chris Wilson for pointing out how silly we were being.
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It's also unused, so worthless.
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This reverts commit 6656db10551bbb8770dd945b6d81d5138521f208.
We really just want the libdrm and ioctl bits, not all the driver
stuff.
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Conflicts:
libdrm/Makefile.am
libdrm/intel/intel_bufmgr.h
libdrm/intel/intel_bufmgr_fake.c
libdrm/intel/intel_bufmgr_gem.c
shared-core/drm.h
shared-core/i915_dma.c
shared-core/i915_irq.c
shared-core/radeon_cp.c
shared-core/radeon_drv.h
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I wanted to avoid doing this, as it's a bunch of churn, but there was a
conflict between the dri_ symbols in libdrm and the symbols that were in
Mesa in 7.2, which broke Mesa 7.2 AIGLX when the 2D driver had loaded new
libdrm symbols. The new naming was recommended by cworth for giving the
code a unique prefix identifying where the code lives.
Additionally, take the opportunity to fix up two API mistakes: emit_reloc's
arguments were in a nonsensical order, and set_tiling lacked the stride
argument that the kernel will want to use soon. API compatibility with
released code is maintained using #defines.
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We want to be able to use the bufmgr from multiple threads for GL, and thus
we need to protect the internal structures.
The pthread-stubs package is used so that programs not linked against
pthreads get weak symbols to stubs and don't eat most of the cost.
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Bug #18035. Fixes deadlock in glean texCube testcase.
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When using bufmgr_fake without DRM, the X server idles the ring whenever it
wants to wait for something to complete (brutal, but effective). In this
case, bufmgr_fake must treat the pending fence as having passed. However, it
wasn't recording the fences as it emitted them, nor cleaning buffers as they
passed.
Signed-off-by: Keith Packard <keithp@keithp.com>
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We want to be able to use the bufmgr from multiple threads for GL, and thus
we need to protect the internal structures.
The pthread-stubs package is used so that programs not linked against
pthreads get weak symbols to stubs and don't eat most of the cost.
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http://bugs.freedesktop.org/show_bug.cgi?id=17705
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Conflicts:
libdrm/Makefile.am
libdrm/dri_bufmgr.h
linux-core/drm_irq.c
linux-core/drm_sysfs.c
linux-core/drm_ttm.c
shared-core/i915_dma.c
shared-core/i915_irq.c
shared-core/nouveau_drv.h
shared-core/radeon_cp.c
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Fixes http://bugs.freedesktop.org/show_bug.cgi?id=17705
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The gltestperf demo in some cases took over seven seconds to make it through
one batchbuffer on a GM965.
Bug #17004.
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I'd swapped the operands, so if we weren't in lockstep with the hardware we
said the sequence was always passed. Additionally, a race was available that
we might have failed at recovering from. Instead, I've replaced the logic
with new stuff that should be more robust and not rely on all the parties in
userland following the same IRQ_EMIT() == 1 protocol. Also, in a radical
departure from past efforts, include a long comment describing the failure
modes and how we're working around them.
Thanks to haihao for catching the original issue.
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Thanks to airlied for catching this.
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This avoids duplicating the effort in 3 places. Also, added emit/wait fence
callbacks back in bufmgr_fake since we need it for non-drm 2d. Sigh.
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In the process, work around the glaring bugs of the kernel irq wait function.
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dri_bufmgr.h is replaced by intel_bufmgr.h, and several functions are renamed,
though the structures and many functions remain dri_bufmgr_* and dri_bo_*
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Conflicts:
libdrm/xf86drm.c
linux-core/Makefile.kernel
linux-core/drmP.h
linux-core/drm_compat.h
linux-core/drm_drv.c
linux-core/drm_stub.c
linux-core/drm_vm.c
shared-core/i915_dma.c
shared-core/r300_cmdbuf.c
shared-core/radeon_drv.h
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While the bufmgr isn't thread-safe at the moment, we need it to be for shared
objects between contexts.
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This reduces the diff from Mesa and reduces the illegibility of what I did.
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This is the create (may want location flags), pread/pwrite/mmap
(performance tuning hints), and set_domain (will 32 bits be enough for
everyone?) ioctls. Left in the generic set are just flink/open/close.
The 2D driver must be updated for this change, and API but not ABI is broken
for 3D. The driver version is bumped to mark this.
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This will be used by the X Server for VT switch.
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