linux-toradex.git/include/linux/qcom_scm.h, branch v4.14-rc3

firmware: qcom_scm: add two scm calls for iommu secure page table

2017-03-28T21:03:21+00:00

Those two new SCM calls are needed from qcom-iommu driver in order
to initialize secure iommu page table.

Signed-off-by: Stanimir Varbanov 
Signed-off-by: Rob Clark 
Signed-off-by: Andy Gross

firmware/qcom: add qcom_scm_restore_sec_cfg()

2017-03-28T21:03:21+00:00

Signed-off-by: Rob Clark 
Signed-off-by: Andy Gross

firmware: qcom_scm: Add set remote state API

2017-01-17T05:45:04+00:00

This patch adds a set remote state SCM API.  This will be used by the
Venus and GPU subsystems to set state on the remote processors.

This work was based on two patch sets by Jordan Crouse and Stanimir
Varbanov.

Signed-off-by: Andy Gross

firmware: qcom: scm: Add empty functions to help compile testing

2017-01-17T05:07:36+00:00

This will help to compile testing drivers which depends on scm
functions with COMPILE_TEST Kconfig option.

Signed-off-by: Stanimir Varbanov 
Reviewed-by: Stephen Boyd 
Signed-off-by: Andy Gross

firmware: qcom: scm: Peripheral Authentication Service

2016-06-25T03:53:50+00:00

This adds the Peripheral Authentication Service (PAS) interface to the
Qualcomm SCM interface. The API is used to authenticate and boot a range
of external processors in various Qualcomm platforms.

Signed-off-by: Bjorn Andersson 
Signed-off-by: Andy Gross

qcom-scm: add missing prototype for qcom_scm_is_available()

2015-10-14T19:51:22+00:00

Signed-off-by: Rob Clark 
Signed-off-by: Andy Gross

firmware: qcom: scm: Add HDCP Support

2015-05-28T15:47:45+00:00

HDCP driver needs to check if secure environment supports HDCP.  If it's
supported, then it requires to program some registers through SCM.
Add qcom_scm_hdcp_available and qcom_scm_hdcp_req to support these
requirements.

Signed-off-by: Jilai Wang 
Signed-off-by: Kumar Gala

firmware: qcom: scm: Support cpu power down through SCM

2015-03-11T20:15:11+00:00

Support powering down the calling cpu, by trapping into SCM. This
termination function triggers the ARM cpu to execute WFI instruction,
causing the power controller to safely power the cpu down.

Caches may be flushed before powering down the cpu. If cache controller
is set to turn off when the cpu is powered down, then the flags argument
indicates to the secure mode to flush its cache lines before executing
WFI.The warm boot reset address for the cpu should be set before the
calling into this function for the cpu to resume.

The original code for the qcom_scm_call_atomic1() comes from a patch by
Stephen Boyd [1]. The function scm_call_atomic1() has been cherry picked
and renamed to match the convention used in this file. Since there are
no users of scm_call_atomic2(), the function is not included.

[1]. https://lkml.org/lkml/2014/8/4/765

Signed-off-by: Stephen Boyd 
Signed-off-by: Lina Iyer 
Signed-off-by: Kumar Gala

firmware: qcom: scm: Add qcom_scm_set_warm_boot_addr function

2015-03-11T20:15:07+00:00

A core can be powered down for cpuidle or when it is hotplugged off. In
either case, the warmboot return address would be different. Allow
setting the warmboot address for a specific cpu, optimize and write to
the firmware, if the address is different than the previously set
address.

Export qcom_scm_set_warm_boot_addr function move the warm boot flags to
implementation.

Signed-off-by: Lina Iyer 
Signed-off-by: Kumar Gala

firmware: qcom: scm: Clean cold boot entry to export only the API

2015-03-11T20:15:05+00:00

We dont need to export the SCM specific cold boot flags to the platform
code. Export only a function to set the cold boot address.

Signed-off-by: Lina Iyer 
Signed-off-by: Kumar Gala