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Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The goal of this tool is to be usable as a test for whether something
(suspend/resume, GPU reset, bugs, whatever) may have lost various
required hardware setup specified in the docs.
Reviewed-By: Eugeni Dodonov <eugeni.dodonov@intel.com>
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Superseded by the kernel's i915_error_state dumping facility.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This app is required for debug features which seem to (undocumented)
reset themselves if/when the GT goes to sleep.
It is also useful for those doing general debugging or profiling from
userspace when they do not wish to have the GT sleep.
v2: made forcewaked more daemon-like
Cc: Chris Wilson <chris@chris-wilson.co.uk>
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A trivial tool to adjust the backlight registers (gen5+ only atm).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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It has been supersede by intel_error_decode for the user-facing role of
obtaining debug info after a crash.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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This is something I sometimes want to do in testing, to see if a
mystery bug (say, 29172) is due to broken clock gating. Sadly, in
this case it isn't. Note that it isn't supported on non-ILK chipsets
yet.
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Rather than add yet another decoder into the drivers, I rather just emit
a binary blob and use the decoder being developed here.
As it is a pure debugging feature, lets not package it.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Also add intel_reg_snapshot for creating such snapshots, and relevant
documentation.
Signed-off-by: Adam Jackson <ajax@redhat.com>
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A simple variant of intel_gpu_dump that explicitly handles parsing of
i915_error_state.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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We've used it several times in bringing up the AGP driver, so it seems
useful to have aronud.
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Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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This is a handy tool to just check state of one register, which might
not bother to be included in intel_reg_dumper tool. And also take in Ben's
original full range register dump with '-f' option.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Introduce a second decoder that simpler operates on a file so that it
can be run on dumped batchbuffers independent of the gpu.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
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A simple variant on time crossed with intel_gpu_top to estimate the
amount of GPU activity during a program's execution time.
The resource usage (sys+user, i.e. CPU %) is for the child, but the
GPU measure is global. Hmm.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Signed-off-by: Eric Anholt <eric@anholt.net>
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This caught a bug with get_user_pages usage in the kernel, which would
result in zeroes being read out of the object when faulting in a new page.
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Right now it requires a filename on the command line, (such as
/debug/dri/0/i915_batchbuffers). We plan to make it smarter in
the future by going out and collecting all the data it needs.
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