Quoting Jordan Crouse (2018-07-12 19:59:22)
> Add a put function for the coredump printer to bypass printf()
> for constant strings for a speed boost.
>
> v2: Add EXPORT_SYMBOL for _drm_puts_coredump
> Signed-off-by: Jordan Crouse
> ---
> drivers/gpu/drm/drm_print.c | 43
Quoting Jordan Crouse (2018-07-12 19:59:24)
> Convert the existing GPU show function 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
On Thu, Jul 12, 2018 at 12:59:19PM -0600, Jordan Crouse wrote:
> Add a drm printer suitable for use with the read callback for
> devcoredump or other suitable buffer based output format that
> isn't otherwise covered by seq_file.
>
> Signed-off-by: Jordan Crouse
Hm, why not add seq_file support
Quoting Jordan Crouse (2018-07-12 19:59:18)
> The i915 DRM driver very cleverly used ascii85 encoding for their
> GPU state file. Move the encode functions to a general header file to
> support other drivers that might be interested in the same
> functionality.
>
> v3: Fix error_puts -> err_puts
Quoting Jordan Crouse (2018-07-12 19:59:19)
> Add a drm printer suitable for use with the read callback for
> devcoredump or other suitable buffer based output format that
> isn't otherwise covered by seq_file.
>
> Signed-off-by: Jordan Crouse
> ---
> drivers/gpu/drm/drm_print.c | 74
From: Jeykumar Sankaran
Adds bindings for Snapdragon 845 display processing unit
Changes in v2:
- Use SoC specific compatibles for mdss and dpu
- Use assigned-clocks to set initial clock frequency
Signed-off-by: Jeykumar Sankaran
Signed-off-by: Rajesh Yadav
Signed-off-by: Sean Paul
---
Quoting Jordan Crouse (2018-07-12 19:59:25)
> Do a bit of cleanup to prepare for upcoming changes to pass the
> hanging task comm and cmdline to the crash dump function.
>
> Signed-off-by: Jordan Crouse
> ---
> drivers/gpu/drm/msm/msm_gpu.c | 18 ++
> 1 file changed, 10
On Thu, Jul 12, 2018 at 12:59:21PM -0600, Jordan Crouse wrote:
> Add a puts() function to use seq_puts() to help speed up
> up print time for constant strings.
>
> Signed-off-by: Jordan Crouse
Reviewed-by: Daniel Vetter
> ---
> drivers/gpu/drm/drm_print.c | 6 ++
>
On Thu, Jul 12, 2018 at 12:59:20PM -0600, Jordan Crouse wrote:
> Add drm_puts() for a much faster path to print constant strings
> into a drm_printer object with memcpy and friends. This can
> shave seconds off of really large outputs such as GPU dumps.
>
> If the drm_printer object supports a
DPU is short for the Display Processing Unit. It is the display
controller on Qualcomm SDM845 chips.
While the dts is pretty sparse for sdm845 atm, the only piece
we're missing is the iommu. It's commented out for now, and should be
uncommented once support is provided.
Changes in v2:
- Beefed
Capture the GPU state on a GPU hang and store it for later playback
via the devcoredump facility. 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 after capturing
it and then a new one will be
HLSQ, SP and TP registers are only accessible from a special
aperture and to make matters worse the aperture is blocked from
the CPU on targets that can support secure rendering. Luckily the
GPU hardware has its own purpose built register dumper that can
access the registers from the aperture. Add
Add a drm printer suitable for use with the read callback for
devcoredump or other suitable buffer based output format that
isn't otherwise covered by seq_file.
Signed-off-by: Jordan Crouse
---
drivers/gpu/drm/drm_print.c | 74 +
include/drm/drm_print.h |
Add drm_puts() for a much faster path to print constant strings
into a drm_printer object with memcpy and friends. This can
shave seconds off of really large outputs such as GPU dumps.
If the drm_printer object supports a custom puts function then
use that otherwise fall back to the slower legacy
Add the contents of each ringbuffer to the GPU state and dump the
data in the crash file encoded with ascii85. To save space only
the used portions of the ringbuffer are dumped.
Signed-off-by: Jordan Crouse
---
Documentation/gpu/drm-msm-crash-dump.txt | 5 +++
Add the infrastructure to capture the current state of the GPU and
store it in memory so that 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 this should
be extended to capture a much larger set of
Convert the format of the 'show' debugfs file and the crash
dump to a format resembling YAML. This should be easier to
parse and be more flexible for future changes and expansions.
Signed-off-by: Jordan Crouse
---
Documentation/gpu/drm-msm-crash-dump.txt | 46
For hangs, dump copy out the contents of the buffer objects attached to the
guilty submission and print them in the crash dump report.
v2: Use %zd to print the size of the buffer correctly
Signed-off-by: Jordan Crouse
---
Documentation/gpu/drm-msm-crash-dump.txt | 7 +++
Convert the existing GPU show function 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
Add a put function for the coredump printer to bypass printf()
for constant strings for a speed boost.
v2: Add EXPORT_SYMBOL for _drm_puts_coredump
Signed-off-by: Jordan Crouse
---
drivers/gpu/drm/drm_print.c | 43 +
include/drm/drm_print.h | 2 ++
2
Hi Rafael,
On Wed, Jul 11, 2018 at 4:06 PM, Vivek Gautam
wrote:
> Hi Rafael,
>
>
>
> On 7/11/2018 3:23 PM, Rafael J. Wysocki wrote:
>>
>> On Sunday, July 8, 2018 7:34:12 PM CEST Vivek Gautam wrote:
>>>
>>> From: Sricharan R
>>>
>>> Finally add the device link between the master device and
>>>
21 matches
Mail list logo
