xfree86: vgaarb: fix device decoding interface to send resources type properly
Right now, when there is more than one vide card on the machine, we're adopting a pessimistic approach and setting all cards to decode VGA legacy address. Some cards may want to skip the arbitration and the only way to do so is through pci_device_vgaarb_decodes. Therefore, send the desired kind of resource instead force the worst case. Note that xf86VGAarbiterDeviceDecodes is not being used so far by any open-source driver. Even so, API break. Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com> Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
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@ -138,11 +138,12 @@ xf86VGAarbiterScrnInit(ScrnInfoPtr pScrn)
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}
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void
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xf86VGAarbiterDeviceDecodes(ScrnInfoPtr pScrn)
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xf86VGAarbiterDeviceDecodes(ScrnInfoPtr pScrn, int rsrc)
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{
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if (vga_no_arb)
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return;
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pci_device_vgaarb_decodes(VGA_ARB_RSRC_LEGACY_MEM | VGA_ARB_RSRC_LEGACY_IO);
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pci_device_vgaarb_set_target(pScrn->vgaDev);
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pci_device_vgaarb_decodes(rsrc);
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}
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Bool
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@ -40,7 +40,7 @@ extern void xf86VGAarbiterUnlock(ScrnInfoPtr pScrn);
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/* allow a driver to remove itself from arbiter - really should be
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* done in the kernel though */
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extern _X_EXPORT void xf86VGAarbiterDeviceDecodes(ScrnInfoPtr pScrn);
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extern _X_EXPORT void xf86VGAarbiterDeviceDecodes(ScrnInfoPtr pScrn, int rsrc);
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/* DRI and arbiter are really not possible together,
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* you really want to remove the card from arbitration if you can */
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extern _X_EXPORT Bool xf86VGAarbiterAllowDRI(ScreenPtr pScreen);
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