6546665293
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>
49 lines
1.9 KiB
C
49 lines
1.9 KiB
C
/*
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* Copyright (c) 2009 Tiago Vignatti
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __XF86VGAARBITER_H
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#define __XF86VGAARBITER_H
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#include "screenint.h"
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#include "misc.h"
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#include "xf86.h"
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/* Functions */
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extern void xf86VGAarbiterInit(void);
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extern void xf86VGAarbiterFini(void);
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void xf86VGAarbiterScrnInit(ScrnInfoPtr pScrn);
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extern Bool xf86VGAarbiterWrapFunctions(void);
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extern void xf86VGAarbiterLock(ScrnInfoPtr pScrn);
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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, 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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#endif /* __XF86VGAARBITER_H */
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