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| author | Rob Clark <robdclark@gmail.com> | 2017-12-13 15:12:57 -0500 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2018-02-20 10:41:20 -0500 |
| commit | 6a8bd08d0465b2b8d214007c58598e2c15312296 (patch) | |
| tree | 2f776c4b220a2885a4de8f10182a63bbd1c9d5b7 /drivers/gpu/drm/msm/Kconfig | |
| parent | 331dc0bc195bb77fcbe60b4513464b406a6d20cb (diff) | |
| download | op-kernel-dev-6a8bd08d0465b2b8d214007c58598e2c15312296.zip op-kernel-dev-6a8bd08d0465b2b8d214007c58598e2c15312296.tar.gz | |
drm/msm: add sudo flag to submit ioctl
This flags cause cmdstream to be executed from the ringbuffer (RB)
instead of IB1. Normally not something you'd ever want to do, but
it is super useful for firmware debugging.
Hidden behind CAP_SYS_RAWIO and a default=n kconfig option which
depends on EXPERT (and has a suitably scary warning), to prevent
it from being used on accident.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/Kconfig')
| -rw-r--r-- | drivers/gpu/drm/msm/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig index 99d39b2..3065cb2 100644 --- a/drivers/gpu/drm/msm/Kconfig +++ b/drivers/gpu/drm/msm/Kconfig @@ -28,6 +28,19 @@ config DRM_MSM_REGISTER_LOGGING that can be parsed by envytools demsm tool. If enabled, register logging can be switched on via msm.reglog=y module param. +config DRM_MSM_GPU_SUDO + bool "Enable SUDO flag on submits" + depends on DRM_MSM && EXPERT + default n + help + Enable userspace that has CAP_SYS_RAWIO to submit GPU commands + that are run from RB instead of IB1. This essentially gives + userspace kernel level access, but is useful for firmware + debugging. + + Only use this if you are a driver developer. This should *not* + be enabled for production kernels. If unsure, say N. + config DRM_MSM_HDMI_HDCP bool "Enable HDMI HDCP support in MSM DRM driver" depends on DRM_MSM && QCOM_SCM |
