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wsfb: Disable broken DGA support: 

- dga(1) crashes X server since pScrn->AdjustFrame is NULL.
 - If nop is provided as pScrn->AdjustFrame, dga(1) crashes X server *AND*
   kernel. This is because DGA uses physical address of framebuffer via
   /dev/mem (oops!), but we provide only mmap(2)'ed virtual address.
This commit is contained in:
rin 2022-08-20 01:02:44 +00:00
parent 8bc6221bad
commit 8de68ddd0b
1 changed files with 9 additions and 1 deletions
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10
external/mit/xorg/server/drivers/xf86-video-wsfb/Makefile vendored
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@ -1,4 +1,4 @@
# $NetBSD: Makefile,v 1.5 2018/08/03 02:26:00 kamil Exp $
# $NetBSD: Makefile,v 1.6 2022/08/20 01:02:44 rin Exp $
DRIVER= xf86-video-wsfb
DRIVER_NAME= wsfb_drv
@ -11,3 +11,11 @@ CPPFLAGS+= -DHAVE_CONFIG_H -I${X11SRCDIR.${DRIVER}}/../include
CWARNFLAGS.clang+= -Wno-format
.include "../Makefile.xf86-driver"
# XXX
# DGA support for this driver is broken:
# - dga(1) crashes X server since pScrn->AdjustFrame is NULL.
# - If nop is provided as pScrn->AdjustFrame, dga(1) crashes X server *AND*
# kernel. This is because DGA uses physical address of framebuffer via
# /dev/mem (oops!), but we provide only mmap(2)'ed virtual address.
CPPFLAGS+= -UXFreeXDGA