u-boot.git/arch/x86/lib, branch v2018.07

x86: efi_loader: Build EFI memory map per E820 table

2018-07-02T01:23:28Z

On x86 traditional E820 table is used to pass the memory information to kernel. With EFI loader we can build the EFI memory map from it. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

x86: Use microcode update from device tree for all processors

2018-07-02T01:23:28Z

Built without a ROM image with FSP (u-boot.rom), the U-Boot loader applies the microcode update data block encoded in Device Tree to the bootstrap processor but not passed to the other CPUs when multiprocessing is enabled. If the bootstrap processor successfully performs a microcode update from Device Tree, use the same data block for the other processors. Signed-off-by: Ivan Gorinov Reviewed-by: Bin Meng [bmeng: fixed build errors on edison and qemu-x86] Signed-off-by: Bin Meng

x86: efi: Refactor the directory of EFI app and payload support

2018-06-17T13:16:04Z

At present the EFI application and payload support codes in the x86 directory is distributed in a hybrid way. For example, the Kconfig options for both app and payload are in arch/x86/lib/efi/Kconfig, but the source codes in the same directory get built only for CONFIG_EFI_STUB. This refactors the codes by consolidating all the EFI support codes into arch/x86/cpu/efi, just like other x86 targets. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

x86: use EFI calling convention for efi_main on x86_64

2018-06-17T13:16:04Z

UEFI specifies the calling convention used in Microsoft compilers; first arguments of a function are passed in (%rcx, %rdx, %r8, %r9). All other compilers use System V ABI by default, passing first integer arguments of a function in (%rdi, %rsi, %rdx, %rcx, %r8, %r9). These ABI also specify different sets of registers that must be preserved across function calls (callee-saved). GCC allows using the Microsoft calling convention by adding the ms_abi attribute to a function declaration. Current EFI implementation in U-Boot specifies EFIAPI for efi_main() in the test apps but uses default calling convention in lib/efi. Save efi_main() arguments in the startup code on x86_64; use EFI calling convention for _relocate() on x86_64; consistently use EFI calling convention for efi_main() everywhere. Signed-off-by: Ivan Gorinov Reviewed-by: Alexander Graf Reviewed-by: Bin Meng Tested-by: Bin Meng

x86: efi: payload: Enforce toolchain to generate 64-bit EFI payload stub codes

2018-06-13T01:50:57Z

Attempting to use a toolchain that is preconfigured to generate code for the 32-bit architecture (i386), for example, the i386-linux-gcc toolchain on kernel.org, to compile the 64-bit EFI payload does not build. This updates the makefile fragments to ensure '-m64' is passed to toolchain when building the 64-bit EFI payload stub codes. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

x86: Conditionally build the pinctrl_ich6 driver

2018-06-13T01:50:57Z

The pinctrl_ich6 driver is currently unconditionally built for all x86 boards. Let's use a Kconfig option to control the build. Signed-off-by: Bin Meng Reviewed-by: Simon Glass

Define board_quiesce_devices() in a shared location

2018-06-03T13:27:21Z

This undocumented function relies on arch-specific code to declare a nop weak version. Add the weak function in common code instead to avoid having to duplicate the same function in each arch. Signed-off-by: Simon Glass Signed-off-by: Alexander Graf

efi_loader: build CRT0 and RELOC on x86_64

2018-06-03T13:27:20Z

The efi selftest and the hello application require CRT0 and RELOC to be built. Signed-off-by: Heinrich Schuchardt Reviewed-by: Simon Glass Signed-off-by: Alexander Graf

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12Z

When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini

Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR

2018-04-27T18:54:48Z

We have a large number of places where while we historically referenced gd in the code we no longer do, as well as cases where the code added that line "just in case" during development and never dropped it. Signed-off-by: Tom Rini