ru.unix.bsd

 
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 From : Slawa Olhovchenkov                   2:5030/500     29 Aug 2006  12:35:34
 To : All
 Subject : Вести с полей
 -------------------------------------------------------------------------------- 
 

 
 jhb         2006-08-11 19:22:57 UTC
 
   FreeBSD src repository
 
   Modified files:
     sys/amd64/acpica     madt.c
     sys/amd64/amd64      pmap.c
     sys/amd64/include    pmap.h
     sys/dev/acpica/Osd   OsdMemory.c
     sys/i386/acpica      acpi_machdep.c madt.c
     sys/i386/i386        pmap.c
     sys/i386/include     pmap.h
     sys/ia64/include     pmap.h
   Log:
   First pass at allowing memory to be mapped using cache modes other than
   WB (write-back) on x86 via control bits in PTEs and PDEs (including making
   use of the PAT MSR).  Changes include:
   - A new pmap_mapdev_attr() function for amd64 and i386 which takes an
     additional parameter (relative to pmap_mapdev()) specifying the cache
     mode for this mapping.  Note that on amd64 only WB mappings are done with
     the direct map, all other modes result in a private mapping.
   - pmap_mapdev() on i386 and amd64 now defaults to using UC (uncached)
     mappings rather than WB.  Previously we relied on the BIOS setting up
     MTRR's to enforce memio regions being treated as UC.  This might make
     hw.cbb_start_memory unnecessary in some cases now for example.
   - A new pmap_mapbios()/pmap_unmapbios() API has been added to allow places
     that used pmap_mapdev() to map non-device memory (such as ACPI tables)
     to do so using WB as before.
   - A new pmap_change_attr() function for amd64 and i386 that changes the
     caching mode for a range of KVA.
 
   Reviewed by:    alc
 ... Многозадачность Windows: глючит и pаботает одновpеменно.
 --- GoldED+/BSD 1.1.5
  * Origin:  (2:5030/500)
 
 

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Тема:    Автор:    Дата:    Вести с полей   Slawa Olhovchenkov   29 Aug 2006 12:35:34   Re: Вести с полей   Eugene Grosbein   29 Aug 2006 16:26:02   Вести с полей   Slawa Olhovchenkov   29 Aug 2006 13:43:28