[PATCH 6/6] drm/amd/display: REFERENCE for srm interface patches

[Harry Wentland]

Thanks for providing more documentation and this reference.

The patch set (1-5) is
Reviewed-by: Harry Wentland <harry.wentland at amd.com>

Harry

On 2020-01-22 4:05 p.m., Bhawanpreet Lakha wrote:
> This is just a reference for the patches. not to be merged
> 
> Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha at amd.com>
> ---
>  REFERENCE | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
>  1 file changed, 49 insertions(+)
>  create mode 100644 REFERENCE
> 
> diff --git a/REFERENCE b/REFERENCE
> new file mode 100644
> index 000000000000..2e53f9cc82ff
> --- /dev/null
> +++ b/REFERENCE
> @@ -0,0 +1,49 @@
> +SRM interface Reference Usermode scripts for ubuntu. 
> +These are just reference sciprts to facilitate the SRM interface for amdgpu.
> +
> ++-----------------------------------------------------------------------------------------------------+
> +| Main script, this is called on boot/shutdown/suspend/resume , it calls the sysfs to get/set the SRM |
> +| FILE: /home/amdgpu_hdcp_srm_script.sh                                                               |
> ++-----------------------------------------------------------------------------------------------------+
> +#!/bin/bash
> +
> +SRMFILE="/home/SRM"
> +sudo cat "$SRMFILE" > /sys/class/drm/card0/device/hdcp_srm
> +sudo cat /sys/class/drm/card0/device/hdcp_srm > "$SRMFILE"
> +
> +
> +
> +
> +
> ++-----------------------------------------------------------------------------------------------------+
> +| .service file, This is placed into /etc/systemd/system/ so it runs the main script on boot/shutdown |
> +| FILE: /etc/systemd/system/amdgpu_hdc_srm_boot_shutdown.service                                      |
> ++-----------------------------------------------------------------------------------------------------+
> +[Unit]
> +Description=HDCP SRM boot and shutdown save/load
> +
> +[Service]
> +Type=simple
> +ExecStart=/home/amdgpu_hdcp_srm_script.sh
> +ExecStop=/home/amdgpu_hdcp_srm_script.sh
> +
> +[Install]
> +WantedBy=multi-user.target
> +
> +
> +
> ++-----------------------------------------------------------------------------------------------------+
> +| To run the script on boot/start run 								      |
> ++-----------------------------------------------------------------------------------------------------+
> +sudo systemctl start amdgpu_hdc_srm_boot_shutdown
> +sudo systemctl enable amdgpu_hdc_srm_boot_shutdown
> +
> +
> +
> ++-----------------------------------------------------------------------------------------------------+
> +| To symlnk the files (adding to these directory will run the script on suspend/resume                |
> ++-----------------------------------------------------------------------------------------------------+
> +sudo ln -s $SCRIPTFILE /lib/systemd/system-sleep/amdgpu_hdcp_srm
> +sudo ln -s $SCRIPTFILE /usr/lib/pm-utils/sleep.d/95amdgpu_hdcp_srm
> +
> +
>