Changeset dcbc8be in mainline for arch/mips


Ignore:
Timestamp:
2005-06-02T23:56:26Z (20 years ago)
Author:
Jakub Jermar <jakub@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
ac5d02b
Parents:
7dcbc0a1
Message:

Big changes in IA-32 address space map.
Now the kernel is mapped above 0x80000000. Finally!
Userspace address space starts at 0x00000000.
Changes in many places.
This improvement temporarily breaks SMP and most likely also other stuff.
Supported size of memory is now only 4M as it is the biggest size that can be mapped at once on IA-32.

Changes in linker script.
Changes required because of the above.
Do not patch hardcoded_* variables but assign to them instead.

Cosmetic changes here and there.

Location:
arch/mips
Files:
2 edited

Legend:

Unmodified
Added
Removed

  • arch/mips/include/mm/vm.h

    r7dcbc0a1 rdcbc8be  
    3838
    3939#define UTEXT_ADDRESS_ARCH      0x00001000
    40 #define USTACK_ADDRESS_ARCH     0x7ffff000
     40#define USTACK_ADDRESS_ARCH     (0x7fffffff-(PAGE_SIZE-1))
    4141#define UDATA_ADDRESS_ARCH      0x01001000
    4242

  • arch/mips/src/asm.s

    r7dcbc0a1 rdcbc8be  
    149149        nop
    150150
     151.global memcopy
     152memcopy:
     153        j _memcopy
     154        nop
     155
    151156# THIS IS USERSPACE CODE
    152157.global utext
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