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2023-10-16firmware: qcom: qseecom: add missing include guardsBartosz Golaszewski1-0/+6
The qseecom header does not contain ifdef guards against multiple inclusion. Add them. Fixes: 00b1248606ba ("firmware: qcom_scm: Add support for Qualcomm Secure Execution Environment SCM interface") Signed-off-by: Bartosz Golaszewski <[email protected]> Reviewed-by: Maximilian Luz <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Bjorn Andersson <[email protected]>
2023-09-14firmware: qcom-scm: drop unneeded 'extern' specifiersBartosz Golaszewski1-54/+47
The 'extern' specifier in front of a function declaration has no effect. Remove all of them from the qcom-scm header. Signed-off-by: Bartosz Golaszewski <[email protected]> Reviewed-by: Krzysztof Kozlowski <[email protected]> Reviewed-by: Bjorn Andersson <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Bjorn Andersson <[email protected]>
2023-09-13firmware: qcom_scm: Add support for Qualcomm Secure Execution Environment ↵Maximilian Luz2-0/+68
SCM interface Add support for SCM calls to Secure OS and the Secure Execution Environment (SEE) residing in the TrustZone (TZ) via the QSEECOM interface. This allows communication with Secure/TZ applications, for example 'uefisecapp' managing access to UEFI variables. For better separation, make qcom_scm spin up a dedicated child (platform) device in case QSEECOM support has been detected. The corresponding driver for this device is then responsible for managing any QSEECOM clients. Specifically, this driver attempts to automatically detect known and supported applications, creating a client (auxiliary) device for each one. The respective client/auxiliary driver is then responsible for managing and communicating with the application. While this patch introduces only a very basic interface without the more advanced features (such as re-entrant and blocking SCM calls and listeners/callbacks), this is enough to talk to the aforementioned 'uefisecapp'. Signed-off-by: Maximilian Luz <[email protected]> Reviewed-by: Johan Hovold <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Bjorn Andersson <[email protected]>
2023-07-27firmware: qcom_scm: Add missing extern specifierGuru Das Srinagesh1-1/+1
Commit 3a99f121fe0b ("firmware: qcom: scm: Introduce pas_metadata context") left out the `extern` specifier for the API it introduced, so add it. Signed-off-by: Guru Das Srinagesh <[email protected]> Link: https://lore.kernel.org/r/bce25c8e215f7cfc7b0780d6965d09f5efe1cc5f.1690503893.git.quic_gurus@quicinc.com Signed-off-by: Bjorn Andersson <[email protected]>
2023-03-15firmware: qcom_scm: Use fixed width src vm bitmapElliot Berman1-1/+1
The maximum VMID for assign_mem is 63. Use a u64 to represent this bitmap instead of architecture-dependent "unsigned int" which varies in size on 32-bit and 64-bit platforms. Acked-by: Kalle Valo <[email protected]> (ath10k) Tested-by: Gokul krishna Krishnakumar <[email protected]> Signed-off-by: Elliot Berman <[email protected]> Reviewed-by: Bjorn Andersson <[email protected]> Signed-off-by: Bjorn Andersson <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2023-02-08firmware: qcom_scm: Move qcom_scm.h to include/linux/firmware/qcom/Elliot Berman1-0/+125
Move include/linux/qcom_scm.h to include/linux/firmware/qcom/qcom_scm.h. This removes 1 of a few remaining Qualcomm-specific headers into a more approciate subdirectory under include/. Suggested-by: Bjorn Andersson <[email protected]> Signed-off-by: Elliot Berman <[email protected]> Reviewed-by: Guru Das Srinagesh <[email protected]> Acked-by: Mukesh Ojha <[email protected]> Signed-off-by: Bjorn Andersson <[email protected]> Link: https://lore.kernel.org/r/[email protected]
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