boot_loader: add missing stubs

u_boot build still broken

Change-Id: Iba93ce7bf0d5c30a95ff98420a2e419eb28bb398
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2412
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

system/boot: Unify spin design, add missing symbols to asm/ld

Change-Id: I1dd98a2243d498ec1c827f7a60385237d12a0d39
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2283
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

cpu: Extract shared x86 code from efi & bios_ia32

This issue was initially detected by PVS Studio (issue number V547) and fixed
as part of Google Code-in 2019.

The initial problem was the calculate_cpu_conversion_factor function
which had been copied in the BIOS and EFI versions of the boot code.
Further investigation led to more duplicated or very similar functions
being identified.

Introduce an arch_cpu.h for the x86 boot platform to group these things
in a single place, and adjust the BIOS and EFI code to call into that.
Note that the BIOS and EFI code is still a little platform specific,
ideally there should be a boot_arch_cpu_init() function for each
architecture as already done for openfirmware and u-boot.

Also remove some irrelevant comments from copypasted files for other
architectures, as that was filling my git grep with useless noise.

Change-Id: I16d815f0bf015cec0b4e03cc14f3cc447c7164c5
Reviewed-on: https://review.haiku-os.org/c/haiku/+/1985
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

U-Boot: cleanup

Remove commented asm code. We should use the U-Boot API later on.

U-Boot: split cpu.cpp into arch-specific and common parts

* the common part should try to use the U-Boot API when found.
* the arch part can make use of cpu features (like timer register)
* the ppc code enables the FPU in the MSR, since it's used by vsnprintf(),
which at least saves one FP register in its prologue.

U-Boot: Fix comments and ppc build

* those are not ARM-specific.
* this asm code doesn't build for ppc, and is not really useful for ARM either.

[GSoC] [ARM] Patch by Johannes Wischert.
Stubbed u-boot platform code. Mostly copied from other platforms.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31818 a95241bf-73f2-0310-859d-f6bbb57e9c96

U-Boot: cleanup

Remove commented asm code. We should use the U-Boot API later on.

U-Boot: split cpu.cpp into arch-specific and common parts

* the common part should try to use the U-Boot API when found.
* the arch part can make use of cpu features (like timer register)
* the ppc code enables the FPU in the MSR, since it's used by vsnprintf(),
which at least saves one FP register in its prologue.

U-Boot: Fix comments and ppc build

* those are not ARM-specific.
* this asm code doesn't build for ppc, and is not really useful for ARM either.

[GSoC] [ARM] Patch by Johannes Wischert.
Stubbed u-boot platform code. Mostly copied from other platforms.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@31818 a95241bf-73f2-0310-859d-f6bbb57e9c96