Commit Graph

3 Commits

Author SHA1 Message Date
Eitan Adler
7a22215c53 Fix undefined behavior: (1 << 31) is not defined as 1 is an int and this
shifts into the sign bit.  Instead use (1U << 31) which gets the
expected result.

This fix is not ideal as it assumes a 32 bit int, but does fix the issue
for most cases.

A similar change was made in OpenBSD.

Discussed with:	-arch, rdivacky
Reviewed by:	cperciva
2013-11-30 22:17:27 +00:00
Eitan Adler
c8aef31d30 Similar to the (1 << 31) case it is not defined to do (2 << 30). 2013-11-30 22:16:37 +00:00
Jean-Sébastien Pédron
0adf4921fb drm/radeon: Import the Radeon KMS driver
This driver is based on Linux 3.8 and a previous effort by kan@.

More informations about this project can be found on the FreeBSD wiki:
    https://wiki.freebsd.org/AMD_GPU

The driver is split into:

  sys/dev/drm2:
    The driver sources.

  sys/modules/drm2/radeonkmw:
    The driver main kernel module's Makefile.

  sys/modules/drm2/radeonkmsfw:
    All firmware kernel module Makefiles. There's one directory and one
    Makefile for each firmware.

  sys/contrib/dev/drm2/radeonkmsfw:
    All firmware binary sources.

  tools/tools/drm/radeon
    Tools to update firmwares or regenerate some headers.

Merging the driver to FreeBSD 9.x may be possible but not a priority for
now.

Help from:	kib@, kan@
Tested by:	avg@, kwm@, ray@,
		Alexander Yerenkow <yerenkow@gmail.com>,
		Anders Bolt-Evensen <andersbo87@me.com>,
		Denis Djubajlo <stdedjub@googlemail.com>,
		J.R. Oldroyd <fbsd@opal.com>,
		Mikaël Urankar <mikael.urankar@gmail.com>,
		Pierre-Emmanuel Pédron <pepcitron@gmail.com>,
		Sam Fourman Jr. <sfourman@gmail.com>,
		Wade <wade-is-great@live.com>,
		(probably other I forgot...)
HW donations:	kyzh, Yakaz
2013-08-25 19:37:15 +00:00