• Jerome Glisse's avatar
    drm/radeon/kms: simplify memory controller setup V2 · d594e46a
    Jerome Glisse authored
    Get rid of _location and use _start/_end also simplify the
    computation of vram_start|end & gtt_start|end. For R1XX-R2XX
    we place VRAM at the same address of PCI aperture, those GPU
    shouldn't have much memory and seems to behave better when
    setup that way. For R3XX and newer we place VRAM at 0. For
    R6XX-R7XX AGP we place VRAM before or after AGP aperture this
    might limit to limit the VRAM size but it's very unlikely.
    For IGP we don't change the VRAM placement.
    
    Tested on (compiz,quake3,suspend/resume):
    PCI/PCIE:RV280,R420,RV515,RV570,RV610,RV710
    AGP:RV100,RV280,R420,RV350,RV620(RPB*),RV730
    IGP:RS480(RPB*),RS690,RS780(RPB*),RS880
    
    RPB: resume previously broken
    
    V2 correct commit message to reflect more accurately the bug
    and move VRAM placement to 0 for most of the GPU to avoid
    limiting VRAM.
    Signed-off-by: default avatarJerome Glisse <jglisse@redhat.com>
    Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
    d594e46a
r420.c 10.9 KB