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https://github.com/mpv-player/mpv
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40 lines
1.2 KiB
Plaintext
40 lines
1.2 KiB
Plaintext
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MTRR beallitasa X11 es/vagy mga_vid-hez:
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========================================
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1. baziscim megkeresese
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~~~~~~~~~~~~~~~~~~~~~~~
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3 modszer is van ra:
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- az X11 uzeneteibol, peldaul:
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(--) SVGA: PCI: Matrox MGA G400 AGP rev 4, Memory @ 0xd8000000, 0xd4000000
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(--) SVGA: Linear framebuffer at 0xD8000000
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- /proc/pci-bol (hasznald az 'lspci -v' parancsot):
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01:00.0 VGA compatible controller: Matrox Graphics, Inc.: Unknown device 0525
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Memory at d8000000 (32-bit, prefetchable)
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- az mga_vid uzeneteibol (pl. 'dmesg' parancs):
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mga_mem_base = d8000000
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2. memoria merete
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~~~~~~~~~~~~~~~~~
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Nagyon konnyu, csak at kell konvertalni a videomemoria meretet
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hexadecimalisba, vagy hasznald ezt a tablazatot:
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1 MB 0x100000
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2 MB 0x200000
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4 MB 0x400000
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8 MB 0x800000
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16 MB 0x1000000
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32 MB 0x2000000
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3. MTRR beallitasa
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~~~~~~~~~~~~~~~~~~
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Most hogy megvan a baziscim es a meret, allitsuk be a regisztereket!
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Peldaul, a fenti Matrox kartyahoz (base=0xd8000000) 32Mb rammal
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(size=0x2000000) a kovetkezot kell beirni:
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echo "base=0xd8000000 size=0x2000000 type=write-combining" >| /proc/mtrr
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- Regebbi K6/2-k [a 266Mhz-koruliek, stepping 0] nem tamogatjak az MTRR-t,
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mig a stepping 12-k ('cat /proc/cpuinfo' kiirja) igen.
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