Add the infrastructure to capture the state current state of the
GPU and store it in memory. This is useful for storing the state
of a hung GPU so it can be dumped later.
For now grab the same basic ringbuffer information and registers
that are provided by the debugfs 'gpu' node but obviously thi
Convert the existing GPU show functions to use the GPU state to
dump the information rather than reading it directly from the hardware.
This will require an additional step to capture the state before
dumping it for the existing nodes but it will greatly facilitate reusing
the same code for dumping
Use drm_printer to abstract the show/dump debug code so we can
use the same code for both the kernel log and seq_file paths.
Maintaining the existing dump format mandates that we break the
single show function into two but thats a small price to pay for
removing a bunch of code and consolidating th
Capture the GPU state on a GPU hang and store it for later playback
using the 'crash' node in the debugfs directory. Only one crash
state is stored at a time on the assumption that the first hang is
usually the most interesting. The existing crash state can be cleared
by writing to the debugfs nod
This is a request for comment on code to store and dump a GPU state
a hang with inspiration from the very good i915 GPU error state and
the binary GPU snapshot in the downstream kernel.
The goal is to store and provide enough information to debug software
and hardware issues on the Adreno hardware
Quoting Jordan Crouse (2018-01-05 18:00:17)
> This is a request for comment on code to store and dump a GPU state
> a hang with inspiration from the very good i915 GPU error state and
> the binary GPU snapshot in the downstream kernel.
>
> The goal is to store and provide enough information to deb
On Fri, Jan 05, 2018 at 06:32:22PM +, Chris Wilson wrote:
> Quoting Jordan Crouse (2018-01-05 18:00:17)
> > This is a request for comment on code to store and dump a GPU state
> > a hang with inspiration from the very good i915 GPU error state and
> > the binary GPU snapshot in the downstream k
On Fri, Jan 5, 2018 at 5:11 PM, Jordan Crouse wrote:
> On Fri, Jan 05, 2018 at 06:32:22PM +, Chris Wilson wrote:
>> Quoting Jordan Crouse (2018-01-05 18:00:17)
>> > This is a request for comment on code to store and dump a GPU state
>> > a hang with inspiration from the very good i915 GPU erro
