en Copyright 2015 Java http://172.16.0.5:8080/history/linux-6.15/drivers/firmware/qcom/Makefile#84f5a7b6 firmware: qcom: add a dedicated TrustZone buffer allocatorWe have several SCM calls that require passing buffers to the TrustZoneon top of the SMC core which allocates memory for calls that requiremore than 4 arguments.Currently every user does their own thing which leads to codeduplication. Many users call dma_alloc_coherent() for every call whichis terribly unperformant (speed- and size-wise).Provide a set of library functions for creating and managing pools ofmemory which is suitable for sharing with the TrustZone, that is:page-aligned, contiguous and non-cachable as well as provides a way ofmapping of kernel virtual addresses to physical space.Make the allocator ready for extending with additional modes of operationwhich will allow us to support the SHM bridge safety mechanism once allusers convert.Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>Reviewed-by: Andrew Halaney <ahalaney@redhat.com>Tested-by: Andrew Halaney <ahalaney@redhat.com> # sc8280xp-lenovo-thinkpad-x13sTested-by: Deepti Jaggi <quic_djaggi@quicinc.com> #sa8775p-rideReviewed-by: Elliot Berman <quic_eberman@quicinc.com>Link: https://lore.kernel.org/r/20240527-shm-bridge-v10-2-ce7afaa58d3a@linaro.orgSigned-off-by: Bjorn Andersson <andersson@kernel.org> List of files: /linux-6.15/drivers/firmware/qcom/Makefile Mon, 27 May 2024 12:54:52 +0000 Bartosz Golaszewski <bartosz.golaszewski@linaro.org> http://172.16.0.5:8080/history/linux-6.15/drivers/firmware/qcom/Makefile#bdac188e firmware: qcom: move Qualcomm code into its own directoryWe're getting more and more qcom specific .c files in drivers/firmware/and about to get even more. Create a separate directory for Qualcommfirmware drivers and move existing sources in there.Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>Acked-by: Elliot Berman <quic_eberman@quicinc.com>Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com>Tested-by: Andrew Halaney <ahalaney@redhat.com> # sc8280xp-lenovo-thinkpad-x13sLink: https://lore.kernel.org/r/20231017092732.19983-2-brgl@bgdev.plSigned-off-by: Bjorn Andersson <andersson@kernel.org> List of files: /linux-6.15/drivers/firmware/qcom/Makefile Tue, 17 Oct 2023 09:27:18 +0000 Bartosz Golaszewski <bartosz.golaszewski@linaro.org>