kernel/drivers/tee/optee, branch linux-5.1.y

Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2019-03-06T17:41:12Z

Pull ARM SoC driver updates from Arnd Bergmann: "As usual, the drivers/tee and drivers/reset subsystems get merged here, with the expected set of smaller updates and some new hardware support. The tee subsystem now supports device drivers to be attached to a tee, the first example here is a random number driver with its implementation in the secure world. Three new power domain drivers get added for specific chip families: - Broadcom BCM283x chips (used in Raspberry Pi) - Qualcomm Snapdragon phone chips - Xilinx ZynqMP FPGA SoCs One new driver is added to talk to the BPMP firmware on NVIDIA Tegra210 Existing drivers are extended for new SoC variants from NXP, NVIDIA, Amlogic and Qualcomm" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (113 commits) tee: optee: update optee_msg.h and optee_smc.h to dual license tee: add cancellation support to client interface dpaa2-eth: configure the cache stashing amount on a queue soc: fsl: dpio: configure cache stashing destination soc: fsl: dpio: enable frame data cache stashing per software portal soc: fsl: guts: make fsl_guts_get_svr() static hwrng: make symbol 'optee_rng_id_table' static tee: optee: Fix unsigned comparison with less than zero hwrng: Fix unsigned comparison with less than zero tee: fix possible error pointer ctx dereferencing hwrng: optee: Initialize some structs using memset instead of braces tee: optee: Initialize some structs using memset instead of braces soc: fsl: dpio: fix memory leak of a struct qbman on error exit path clk: tegra: dfll: Make symbol 'tegra210_cpu_cvb_tables' static soc: qcom: llcc-slice: Fix typos qcom: soc: llcc-slice: Consolidate some code qcom: soc: llcc-slice: Clear the global drv_data pointer on error drivers: soc: xilinx: Add ZynqMP power domain driver firmware: xilinx: Add APIs to control node status/power dt-bindings: power: Add ZynqMP power domain bindings ...

Merge tag 'tee-misc-for-v5.1' of https://git.linaro.org/people/jens.wiklander/linux-tee into arm/drivers

2019-03-01T14:01:16Z

OP-TEE driver - dual license for optee_msg.h and optee_smc.h Generic - add cancellation support to client interface * tag 'tee-misc-for-v5.1' of https://git.linaro.org/people/jens.wiklander/linux-tee: tee: optee: update optee_msg.h and optee_smc.h to dual license tee: add cancellation support to client interface Signed-off-by: Arnd Bergmann

tee: optee: update optee_msg.h and optee_smc.h to dual license

2019-02-28T12:49:29Z

The files optee_msg.h and optee_smc.h (under drivers/tee/optee) contain information originating from the OP-TEE OS project [1] [2], where the licensing terms are BSD 2-Clause. Therefore, apply a dual license to those files. Link: [1] https://github.com/OP-TEE/optee_os/blob/master/core/include/optee_msg.h Link: [2] https://github.com/OP-TEE/optee_os/blob/master/core/arch/arm/include/sm/optee_smc.h Signed-off-by: Jerome Forissier Signed-off-by: Jens Wiklander

tee: optee: add missing of_node_put after of_device_is_available

2019-02-28T09:23:04Z

Add an of_node_put when a tested device node is not available. The semantic patch that fixes this problem is as follows (http://coccinelle.lip6.fr): // @@ identifier f; local idexpression e; expression x; @@ e = f(...); ... when != of_node_put(e) when != x = e when != e = x when any if (<+...of_device_is_available(e)...+>) { ... when != of_node_put(e) ( return e; | + of_node_put(e); return ...; ) } // Fixes: db878f76b9ff ("tee: optee: take DT status property into account") Signed-off-by: Julia Lawall Signed-off-by: Jens Wiklander

tee: optee: Fix unsigned comparison with less than zero

2019-02-20T16:57:47Z

The return from the call to tee_client_invoke_func can be a negative error code however this is being assigned to an unsigned variable 'ret' hence the check is always false. Fix this by making 'ret' an int. Detected by Coccinelle ("Unsigned expression compared with zero: ret < 0") Fixes: c3fa24af9244 ("tee: optee: add TEE bus device enumeration support") Signed-off-by: YueHaibing Reviewed-by: Sumit Garg Signed-off-by: Arnd Bergmann

tee: optee: Initialize some structs using memset instead of braces

2019-02-20T15:24:09Z

Clang warns: drivers/tee/optee/device.c:39:31: warning: suggest braces around initialization of subobject [-Wmissing-braces] struct tee_param param[4] = {0}; ^ {} drivers/tee/optee/device.c:92:48: warning: suggest braces around initialization of subobject [-Wmissing-braces] struct tee_ioctl_open_session_arg sess_arg = {0}; ^ {} 2 warnings generated. One way to fix these warnings is to add additional braces like Clang suggests; however, there has been a bit of push back from some maintainers, who just prefer memset as it is unambiguous, doesn't depend on a particular compiler version, and properly initializes all subobjects [1][2]. Do that here so there are no more warnings. [1]: https://lore.kernel.org/lkml/022e41c0-8465-dc7a-a45c-64187ecd9684@amd.com/ [2]: https://lore.kernel.org/lkml/20181128.215241.702406654469517539.davem@davemloft.net/ Fixes: c3fa24af9244 ("tee: optee: add TEE bus device enumeration support") Link: https://github.com/ClangBuiltLinux/linux/issues/370 Signed-off-by: Nathan Chancellor Reviewed-by: Sumit Garg Signed-off-by: Arnd Bergmann

tee: optee: add TEE bus device enumeration support

2019-02-01T14:12:46Z

OP-TEE provides a pseudo TA to enumerate TAs which can act as devices/ services for TEE bus. So implement device enumeration using invoke function: PTA_CMD_GET_DEVICES provided by pseudo TA to fetch array of device UUIDs. Also register these enumerated devices with TEE bus as "optee-clntX" device. Signed-off-by: Sumit Garg Reviewed-by: Daniel Thompson [jw: fix optee_enumerate_devices() with no devices found] Signed-off-by: Jens Wiklander

tee: add supp_nowait flag in tee_context struct

2019-02-01T14:12:46Z

This flag indicates that requests in this context should not wait for tee-supplicant daemon to be started if not present and just return with an error code. It is needed for requests which should be non-blocking in nature like ones arising from TEE based kernel drivers or any in kernel api that uses TEE internal client interface. Signed-off-by: Sumit Garg Reviewed-by: Daniel Thompson Signed-off-by: Jens Wiklander

Merge tag 'tee-subsys-optee-for-4.21' of https://git.linaro.org/people/jens.wiklander/linux-tee into next/late

2018-12-31T21:06:30Z

OP-TEE dynamic shm log message Adds a log message in the OP-TEE driver to inform that dynamic shared memory is enabled. * tag 'tee-subsys-optee-for-4.21' of https://git.linaro.org/people/jens.wiklander/linux-tee: tee: optee: log message if dynamic shm is enabled Signed-off-by: Olof Johansson

tee: optee: log message if dynamic shm is enabled

2018-12-11T13:38:40Z

When dynamic shared memory support is enabled in the OP-TEE Trusted OS, it doesn't mean that the driver supports it, which can confuse users during debugging. Log a message when dynamic shared memory is enabled in the driver, to let users know for sure. Suggested-by: Jerome Forissier Signed-off-by: Victor Chong Reviewed-by: Jerome Forissier Signed-off-by: Jens Wiklander