Changeset 22f0561 in mainline for kernel/arch/ia64/include/mm/page.h


Ignore:
Timestamp:
2011-12-31T00:12:58Z (13 years ago)
Author:
Jakub Jermar <jakub@…>
Branches:
lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
Children:
2107e79, c520034
Parents:
efb48eb
Message:

Get rid of kernel static non-identity mappings on ia64.

  • IO_OFFSET is replaced by legacyio_virt_base and LEGACYIO_USER_BASE.
  • VIO_OFFSET and FW_OFFSET are removed entirely.
  • Legacy I/O and IO SAPIC are mapped via hw_map().
  • Remove corresponding locked translation records.
  • Cleanup ia64 kernel pio_read/write_8|16|32().
File:
1 edited

Legend:

Unmodified
Added
Removed

  • kernel/arch/ia64/include/mm/page.h

    refb48eb r22f0561  
    4343
    4444/** Bit width of the TLB-locked portion of kernel address space. */
    45 #define KERNEL_PAGE_WIDTH  28  /* 256M */
    46 #define IO_PAGE_WIDTH      26  /* 64M */
    47 #define FW_PAGE_WIDTH      28  /* 256M */
    48 
    49 #define USPACE_IO_PAGE_WIDTH  12  /* 4K */
    50 
    51 
    52 /*
    53  * Statically mapped IO spaces - offsets to 0xe...00 of virtual addresses
    54  * because of "minimal virtual bits implemented is 51" it is possible to
    55  * have values up to 0x0007000000000000
    56  */
    57 
    58 /* Firmware area (bellow 4GB in phys mem) */
    59 #define FW_OFFSET   0x00000000F0000000  // FIXME: [non-ident]
    60 /* Legacy IO space */
    61 #define IO_OFFSET   0x0001000000000000  // FIXME: [non-ident]
    62 /* Videoram - now mapped to 0 as VGA text mode vram on 0xb8000 */
    63 #define VIO_OFFSET  0x0002000000000000  // FIXME: [non-ident]
    64 
     45#define KERNEL_PAGE_WIDTH       28      /* 256M */
    6546
    6647#define PPN_SHIFT  12
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