Commit Graph

65 Commits

Author SHA1 Message Date
Axel Dörfler
ba61df6d0b Beginnings of APM support: we now connect to the APM BIOS in 32 bit protected mode.
We don't do anything with it yet, though, so the BIOS will probably ignore us since
we are supposed to poll for events.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15900 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-10 22:54:36 +00:00
Ingo Weinhold
e55e1a0e66 Implemented the PPC specific RTC support. We search for an "rtc"
device in the Open Firmware implementation of boot loader and
pass its path to the kernel, where it's opened and used for
getting/setting the real time. The expensive atomic_*64() on PPC
32-bit make things a bit more complicated. Moreover, missing
64 bit multiplication and division instructions won't really
allow system_time() to be anywhere near as fast as on x86. :-/


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15837 a95241bf-73f2-0310-859d-f6bbb57e9c96
2006-01-04 04:55:04 +00:00
Ingo Weinhold
957a1b17eb * Introduced new build system variables
{HAIKU,HOST,TARGET}_KERNEL_PIC_{CC,LINK}FLAGS which define the
  compiler/linker flags specifying the kind of position independence
  the kernel shall have. For x86 we had and still have -fno-pic, but the
  PPC kernel has -fPIE (position independent executable) now, as we
  need to relocate it.
* The boot loader relocates the kernel now. Mostly copied the relocation
  code from the kernel ELF loader. Almost completely rewrote the PPC
  specific relocation code, though. It's more correct and more complete now
  (some things are still missing though).
* Added boot platform awareness to the kernel. Moved the generic
  Open Firmware code (openfirmware.c/h) from the boot loader to the kernel.
* The kernel PPC serial debug output is sent to the console for the time
  being.
* The PPC boot loader counts the CPUs now and allocates the kernel stacks
  (made OF device iteration a bit more flexible on the way -- the search
  can be restricted to subtree). Furthermore we really enter the kernel...
  (Yay! :-) ... and crash in the first dprintf() (in the atomic_set()
  called by acquire_spinlock()). kprintf() works, though.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15756 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-30 21:20:07 +00:00
Ingo Weinhold
c83d9dad1c * platform_allocate_region() has a new boolean parameter "exactAddress"
specifying whether only the exact supplied address is acceptable. If
  false, the address is considered a hint only. It will be picked, if
  available, otherwise a greater address is tried to be acquired, and
  as last resort any address. This feature is only implemented for PPC.
  It is needed since the preferred kernel text base address 0x80000000
  might not be available (and actually isn't on my Mac mini).
* Fixed a bug in the PPC memory management code:
  is_{virtual,physical}_allocated() were checking whether the given
  range was completely contained by an existing range instead of
  checking for intersection. As a consequence we could (and did) allocate
  a range intersecting with already allocated ranges. The kernel segment
  thus overwrote OF memory for instance.
* The ELF loader makes sure that it got both text and data segment of
  the image to be loaded.

The PPC boot loader successfully loads kernel and modules now. Next
comes the hard part, I'm afraid.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15708 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-29 01:50:23 +00:00
Ingo Weinhold
4c62b0919f Pulled platform independent part of the BIOS boot menu out into
platform/generic/...


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15587 a95241bf-73f2-0310-859d-f6bbb57e9c96
2005-12-19 13:35:01 +00:00
Axel Dörfler
b193fcc716 Some work on the boot disk identification: the kernel_args structure has
now fields that carry information about the boot disk and partition.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9956 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-11-15 17:59:15 +00:00
Axel Dörfler
f2ea9af307 The boot loader now can tell the x86 serial driver the serial port base
addresses as reported by the BIOS.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9526 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-10-27 01:02:05 +00:00
Axel Dörfler
840ed4b067 Added a dummy member of the platform_kernel_args structure: obviously, the
kernel didn't count an empty structure, while the boot loader reserved
4 bytes for it - dunno why, a _PACKED everywhere didn't help; it's probably
a compile option issue.
To be on the safe side always, I've now added this dummy.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@7278 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-04-21 01:32:44 +00:00
Axel Dörfler
e5fabd56bf Added prototype for setting OpenFirmware's callback for MMU actions.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5196 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-10-28 21:06:42 +00:00
Axel Dörfler
b73b3e5a2d Changes for the ELF loader in the boot loader.
Removed the arch_mmu_alloc() function, added (empty) arch_mmu_free() function.
Added platform prototypes for allocating and freeing a region.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@5044 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-10-16 17:55:21 +00:00
Axel Dörfler
1d8adcd3f6 Added two more arch related calls for the OpenFirmware platform.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4989 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-10-11 18:59:08 +00:00
Axel Dörfler
64881aa93e Added platform_kernel_args.h for the BIOS IA32 platform.
platform_stage2_args.h can now only be included from stage2_args.h.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4973 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-10-07 23:39:45 +00:00
Axel Dörfler
bf25fe99f6 Added new platform_kernel_args - might need an arch dependent part as well, though.
Only stage2_args.h can now include platform_stage2_args.h.
Only kernel_args.h can now include platform_kernel_args.h.


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4960 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-10-07 22:02:43 +00:00
Axel Dörfler
c9b0bae94c Needed to compile the boot loader stuff under x86.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3640 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-06-24 17:27:07 +00:00
Axel Dörfler
59eb57ae58 Some work-in-progress headers that are needed to build the heap test.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3639 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-06-24 17:22:11 +00:00