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2018-07-21firmware: qcom: scm: add a dummy qcom_scm_assign_mem()Niklas Cassel1-0/+4
Add a dummy qcom_scm_assign_mem() to enable building drivers when CONFIG_COMPILE_TEST=y && CONFIG_QCOM_SCM=n. All other qcom_scm_* functions already have a dummy version. Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2017-12-20firmware: qcom_scm: Add dependent headers to qcom_scm.hJordan Crouse1-0/+3
qcom_scm.h makes heavy use of <linux/types.h> and <linux/cpumask.h>. Add the dependent header files so that users of SCM don't need to include header files they don't otherwise use. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2017-11-17Merge tag 'rproc-v4.15' of git://github.com/andersson/remoteprocLinus Torvalds1-0/+16
Pull remoteproc updates from Bjorn Andersson: "This adds an interface for configuring Qualcomm's "secure SMMU" and adds support for booting the modem Hexagon on MSM8996. Two new debugfs entries are added in the remoteproc core to introspect the list of memory carveouts and the loaded resource table" * tag 'rproc-v4.15' of git://github.com/andersson/remoteproc: remoteproc: qcom: Fix error handling paths in order to avoid memory leaks remoteproc: qcom: Drop pr_err in q6v5_xfer_mem_ownership() remoteproc: debug: add carveouts list dump feature remoteproc: debug: add resource table dump feature remoteproc: qcom: Add support for mss remoteproc on msm8996 remoteproc: qcom: Make secure world call for mem ownership switch remoteproc: qcom: refactor mss fw image loading sequence firmware: scm: Add new SCM call API for switching memory ownership
2017-10-30firmware: scm: Add new SCM call API for switching memory ownershipAvaneesh Kumar Dwivedi1-0/+16
Two different processors on a SOC need to switch memory ownership during load/unload. To enable this, second level memory map table need to be updated, which is done by secure layer. This patch adds the interface for making secure monitor call for memory ownership switching request. Acked-by: Andy Gross <andy.gross@linaro.org> Signed-off-by: Avaneesh Kumar Dwivedi <akdwived@codeaurora.org> [bjorn: Minor style and kerneldoc updates] Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-10-11firmware: qcom: scm: Expose secure IO serviceBjorn Andersson1-0/+4
The secure IO service provides operations for reading and writing secure memory from non-secure mode, expose this API through SCM. Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2017-03-28firmware: qcom_scm: add two scm calls for iommu secure page tableStanimir Varbanov1-0/+4
Those two new SCM calls are needed from qcom-iommu driver in order to initialize secure iommu page table. Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> Signed-off-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2017-03-28firmware/qcom: add qcom_scm_restore_sec_cfg()Rob Clark1-0/+2
Signed-off-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2017-01-16firmware: qcom_scm: Add set remote state APIAndy Gross1-1/+3
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 <andy.gross@linaro.org>
2017-01-16firmware: qcom: scm: Add empty functions to help compile testingStanimir Varbanov1-15/+35
This will help to compile testing drivers which depends on scm functions with COMPILE_TEST Kconfig option. Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2016-06-24firmware: qcom: scm: Peripheral Authentication ServiceBjorn Andersson1-0/+8
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 <bjorn.andersson@sonymobile.com> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2015-10-14qcom-scm: add missing prototype for qcom_scm_is_available()Rob Clark1-0/+2
Signed-off-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Andy Gross <agross@codeaurora.org>
2015-05-28firmware: qcom: scm: Add HDCP Supportjilai wang1-1/+12
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 <jilaiw@codeaurora.org> Signed-off-by: Kumar Gala <galak@codeaurora.org>
2015-03-11firmware: qcom: scm: Support cpu power down through SCMLina Iyer1-1/+6
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 <sboyd@codeauraro.org> Signed-off-by: Lina Iyer <lina.iyer@linaro.org> Signed-off-by: Kumar Gala <galak@codeaurora.org>
2015-03-11firmware: qcom: scm: Add qcom_scm_set_warm_boot_addr functionLina Iyer1-5/+2
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 <lina.iyer@linaro.org> Signed-off-by: Kumar Gala <galak@codeaurora.org>
2015-03-11firmware: qcom: scm: Clean cold boot entry to export only the APILina Iyer1-4/+1
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 <lina.iyer@linaro.org> Signed-off-by: Kumar Gala <galak@codeaurora.org>
2015-03-11firmware: qcom: scm: Move the scm driver to drivers/firmwareKumar Gala1-0/+29
Architectural changes in the ARM Linux kernel tree mandate the eventual removal of the mach-* directories. Move the scm driver to drivers/firmware and the scm header to include/linux to support that removal. Signed-off-by: Kumar Gala <galak@codeaurora.org>
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