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authorLinus Torvalds <torvalds@g5.osdl.org>2006-10-03 18:45:46 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-03 18:47:14 +0200
commit8ccb3dcd1f8e80e8702642e1de26541b52f6bb7c (patch)
treead03dadb63ee1fbc70e271b4962b91b376058040 /drivers/media/dvb/dvb-usb
parentMerge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm (diff)
downloadlinux-8ccb3dcd1f8e80e8702642e1de26541b52f6bb7c.tar.xz
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x86: Fix booting with "no387 nofxsr"
Jesper Juhl reported that testing the software math-emulation by forcing "no387" doesn't work on modern CPU's. The reason was two-fold: - you also need to pass in "nofxsr" to make sure that we not only don't touch the old i387 legacy hardware, it also needs to disable the modern XMM/FXSR sequences - "nofxsr" didn't actually clear the capability bits immediately, leaving the early boot sequence still using FXSR until we got to the identify_cpu() stage. This fixes the "nofxsr" flag to take effect immediately on the boot CPU. Debugging by Randy Dunlap Acked-by: Randy Dunlap <rdunlap@xenotime.net> Cc: Jesper Juhl <jesper.juhl@gmail.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/media/dvb/dvb-usb')
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