So far, barebox support for OP-TEE was restricted to loading it either early in PBL or via bootm and to not step over it when allocating memory. This was guarded behind CONFIG_HAVE_OPTEE. To prepare porting the Linux driver behind CONFIG_OPTEE, which brings actual bidirectional communication with OP-TEE to barebox, let's import some of the headers and APIs used by the v6.6 Linux driver. v1 -> v2: See individual change log in every patch. Ahmad Fatoum (20): include: provide linux/errno.h include: add linux/refcount.h bitops: split off linux/bits.h include: import <linux/instruction_pointer.h> asm-generic: split off typeconfused readl and friends asm-generic: migrate relaxed helpers into asm-generic/io.h include: add linux/io.h with strict prototypes include: import Linux word-at-a-time.h string: implement strscpy of: add CONFIG_OF for Linux compatibility include: asm-generic/atomic.h: define atomic_cmpxchg kbuild: build barebox for -std=gnu11 include: linux/idr.h: implement more Linux API test: self: add simple IDR test include: implement dev_warn_once and friends include: add blocking notifier aliases include: add Linux ktime API of: constify string pointed to by struct of_device_id::compatible of: define of_devices_ensure_probed_by_compatible include: add linux/device.h wrapper around driver.h Makefile | 4 +- arch/arm/include/asm/word-at-a-time.h | 59 +++++ arch/kvx/include/asm/word-at-a-time.h | 2 + arch/mips/include/asm/word-at-a-time.h | 2 + arch/openrisc/include/asm/word-at-a-time.h | 2 + arch/powerpc/include/asm/word-at-a-time.h | 156 +++++++++++ arch/powerpc/lib/misc.S | 2 +- arch/powerpc/lib/ppcstring.S | 2 +- arch/riscv/include/asm/word-at-a-time.h | 48 ++++ arch/sandbox/include/asm/word-at-a-time.h | 2 + arch/x86/include/asm/word-at-a-time.h | 73 ++++++ common/optee.c | 2 +- drivers/firmware/Kconfig | 1 + drivers/firmware/arm_scmi/driver.c | 4 +- drivers/of/Kconfig | 4 + include/asm-generic/atomic.h | 2 + include/asm-generic/cmpxchg-local.h | 64 +++++ include/asm-generic/cmpxchg.h | 26 ++ include/asm-generic/errno.h | 11 - include/asm-generic/io-typeconfused.h | 75 ++++++ include/asm-generic/io.h | 284 +++++++++++++++++---- include/asm-generic/word-at-a-time.h | 121 +++++++++ include/bbu.h | 2 +- include/errno.h | 2 +- include/io.h | 34 --- include/linux/atomic.h | 63 +++++ include/linux/bitops.h | 21 +- include/linux/bits.h | 30 +++ include/linux/device.h | 66 +++++ include/linux/err.h | 2 +- include/linux/errno.h | 36 +++ include/linux/idr.h | 61 ++--- include/linux/instruction_pointer.h | 11 + include/linux/io.h | 9 + include/linux/kernel.h | 11 +- include/linux/kref.h | 90 +++++++ include/linux/ktime.h | 212 +++++++++++++++ include/linux/notifier.h | 16 ++ include/linux/printk.h | 29 ++- include/linux/pstore.h | 2 +- include/linux/refcount.h | 271 ++++++++++++++++++++ include/linux/string.h | 3 + include/mach/at91/iomux.h | 2 +- include/notifier.h | 3 + include/of.h | 12 +- include/tee/optee.h | 2 +- lib/Kconfig | 3 + lib/Makefile | 2 + lib/idr.c | 100 ++++++++ lib/reed_solomon/reed_solomon.c | 2 +- lib/refcount.c | 34 +++ lib/string.c | 71 ++++++ test/self/Kconfig | 5 + test/self/Makefile | 1 + test/self/idr.c | 119 +++++++++ 55 files changed, 2103 insertions(+), 170 deletions(-) create mode 100644 arch/arm/include/asm/word-at-a-time.h create mode 100644 arch/kvx/include/asm/word-at-a-time.h create mode 100644 arch/mips/include/asm/word-at-a-time.h create mode 100644 arch/openrisc/include/asm/word-at-a-time.h create mode 100644 arch/powerpc/include/asm/word-at-a-time.h create mode 100644 arch/riscv/include/asm/word-at-a-time.h create mode 100644 arch/sandbox/include/asm/word-at-a-time.h create mode 100644 arch/x86/include/asm/word-at-a-time.h create mode 100644 include/asm-generic/cmpxchg-local.h create mode 100644 include/asm-generic/cmpxchg.h create mode 100644 include/asm-generic/io-typeconfused.h create mode 100644 include/asm-generic/word-at-a-time.h create mode 100644 include/linux/bits.h create mode 100644 include/linux/device.h create mode 100644 include/linux/errno.h create mode 100644 include/linux/instruction_pointer.h create mode 100644 include/linux/io.h create mode 100644 include/linux/kref.h create mode 100644 include/linux/ktime.h create mode 100644 include/linux/notifier.h create mode 100644 include/linux/refcount.h create mode 100644 lib/idr.c create mode 100644 lib/refcount.c create mode 100644 test/self/idr.c -- 2.39.2
