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Bug #2576
closed
sys/vm/device_pager.c old_dev_pager_fault() dev_dmmap needs offset << PAGE_SHIFT
Status:
Resolved
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
08/01/2013
Due date:
% Done:
0%
Estimated time:
Description
commit f2c2051ee473577d22178d55f782ceebbd88d58f
Date: Mon Jul 29 22:39:56 2013 +0200
kernel: Port new device_pager interface from FreeBSDshould probably be amended in sys/vm/device_pager.c, function old_dev_pager_fault() to use
paddr = pmap_phys_address(
dev_dmmap(dev, offset << PAGE_SHIFT, prot));
similar to what had been used in the previous version of dev_pager_getpage().
Without this change, legacy drm systems running say a Radeon 4xxx graphics card failed to have dports Xorg start.
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