On sparc, the minimal page size we can use is 8K. Since B_PAGE_SIZE and
PAGESIZE defines were hardcoded to 4K, this resulted in a lot of
confusion in all code trying to manipulate pages.
- Remove cpu.h from headers/private/kernel/arch/*. It dates back from
NewOS and was not used anymore since our kernel uses B_PAGE_SIZE
(PAGE_SIZE was the only thing defined in this header).
- Add posix/arch/*/limits.h with the arch specific page size and include
it from the main limits.h.
- Adjust bios_ia32/debug.cpp which was the only place using the
PAGE_SIZE constant from the deleted headers.
- Change OS.h to define B_PAGE_SIZE to be the same as POSIX PAGESIZE.
- Define PAGESIZE in the build header if the host OS doesn't.
Change-Id: I8c3732cf952ea3c2f088aa16d216678fbf198b96
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3558
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
Mostly the same as PowerPC, using OpenFirmware.
Change-Id: I197cc181e92da92c272ee9cfa20c8ad2d2c63d41
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3579
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
The manually written code was all wrong (missing branch delay slots,
wrong type of return instruction used, probably more bugs). Use the same
approach as x86 to have inline functions instead, which is much better
for performance and simpler to write.
Change-Id: Iac0fc814c15311658f983da58ac7f9d3edd75b81
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3595
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
The definition in SupportDefs.h using gcc builtins is sufficient. No
need for a custom one. The same approach is used on x86 with gcc8
already, but other platforms had not been adjusted to use it.
Change-Id: I3973ff723a31f90cc8d19ac098eb1e85d471d610
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3594
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
The sparc ABI reserves the g7 register for this.
Change-Id: I93b81ecef72cde859972ef7b7f6b9991d35f9f29
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3583
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
None of these were used; they were all imported with the original
root Haiku commit, and they are totally unrelated to PulkoMandy's
new SPARC work. Plus, they were also under a BSD Advertising Clause
license.
Get enough of the mmu working to be able to allocate memory.
Unlike on PowerPC, we get both address and size as 64bit values. So
adjust of_region to allow this.
Also unlike the PPC port, we do not drive the hardware directly, instead we
rely on the openboot primitives to manage the translation table. This
allows staying independant of the hardware, which is a good idea at
least for the bootloader (we can do actual hardware things in the
kernel)
Change-Id: Ifa57619d3a09b8f707e1f8640d8b4f71bb717e2a
Reviewed-on: https://review.haiku-os.org/c/haiku/+/1482
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
Copied from PPC with the hooks for Apple hardware removed.
To be completed with the actual PCI bus implementation for Sun machines.
This is where we start doing machine specific stuff, apparently.
Change-Id: I06af4de9621e9d40593d153642478d928083e49a
Reviewed-on: https://review.haiku-os.org/c/1364
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
* Kernel is 64 bit, and we won't need a 32bit load base.
Change-Id: I729bab01c8f71083002db061e153b0e5052b9a1c
Reviewed-on: https://review.haiku-os.org/c/1326
Reviewed-by: Alex von Gluck IV <kallisti5@unixzen.com>
Add empty implementation of timer, elf, vm, debugger support, to let the
kernel link.
Also add the kernel linker script.
Change-Id: If0795fa6554aea3df1ee544c25cc4832634ffd78
Reviewed-on: https://review.haiku-os.org/c/1108
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
Previous commit adding these was merged very quickly, so here's one
more...
Change-Id: I23c424db7631db1f0ec48e2d0ae47c8409ae6af2
Reviewed-on: https://review.haiku-os.org/c/1088
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
Gets the stage0 bootstrap to run.
Imlementation is probably nonsense at this point.
Change-Id: I10876efbb54314b864c0ad951152757cdb2fd366
Reviewed-on: https://review.haiku-os.org/c/1061
Reviewed-by: waddlesplash <waddlesplash@gmail.com>
