Anup Mahindre ae57a78c73 gpu: nvgpu: Return size of ring buffer from NVGPU_CTXSW_IOCTL_RING_SETUP ...

NVGPU_CTXSW_IOCTL_RING_SETUP is used to setup a ring buffer of custom
size for FECS tracing. It uses size field from its arguments to setup a
user-mapped ring buffer for holding FECS Trace entries.

The value from this field is rounded up to nearest page-size boundary.
This rounded up value is supposed to be returned by the IOCTL (as per
description of the field in nvgpu.h).
That is currently not the case and the IOCTL just returns the same value
as that was passed.

This change fixes this issue by returning updated value.

Bug 200469520

Change-Id: I477aefaede9a4cdba921026466db3fb8fbfd0712
Signed-off-by: Anup Mahindre <amahindre@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1955337
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2018-11-29 10:15:05 -08:00

..

nvgpu

gpu: nvgpu: Return size of ring buffer from NVGPU_CTXSW_IOCTL_RING_SETUP

2018-11-29 10:15:05 -08:00

Makefile

nvgpu: use kernel overlay features

2017-10-29 11:00:55 -07:00