Ignore:
Timestamp:
2013-09-10T17:48:57Z (11 years ago)
Author:
Martin Decky <martin@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
85147f3
Parents:
86733f3
Message:

new physical memory allocator supporting physical address constrains
the buddy allocator framework is retired and replaced by a two-level bitmap
the allocator can allocate an arbitrary number of frames, not only a power-of-two count

Caution: Change of semantics
The physical memory allocator no longer allocates naturally aligned blocks. If you require an aligned block, specify it as the constraint.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • kernel/arch/abs32le/include/arch/mm/page.h

    r86733f3 rb0c2075  
    5757
    5858/* Page table sizes for each level. */
    59 #define PTL0_SIZE_ARCH  ONE_FRAME
    60 #define PTL1_SIZE_ARCH  0
    61 #define PTL2_SIZE_ARCH  0
    62 #define PTL3_SIZE_ARCH  ONE_FRAME
     59#define PTL0_FRAMES_ARCH  1
     60#define PTL1_FRAMES_ARCH  1
     61#define PTL2_FRAMES_ARCH  1
     62#define PTL3_FRAMES_ARCH  1
    6363
    6464/* Macros calculating indices for each level. */
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