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authorJesse Barnes <jbarnes@virtuousgeek.org>2012-11-14 20:43:31 +0000
committerH. Peter Anvin <hpa@linux.intel.com>2013-01-11 14:26:38 -0800
commita9acc5365dbda29f7be2884efb63771dc24bd815 (patch)
tree15d39f3b236bc5956bbe487749852c326f9d1bc6 /kernel/nsproxy.c
parent886d751a2ea99a160f2d0a472231566d9cb0cf58 (diff)
x86/Sandy Bridge: reserve pages when integrated graphics is present
SNB graphics devices have a bug that prevent them from accessing certain memory ranges, namely anything below 1M and in the pages listed in the table. So reserve those at boot if set detect a SNB gfx device on the CPU to avoid GPU hangs. Stephane Marchesin had a similar patch to the page allocator awhile back, but rather than reserving pages up front, it leaked them at allocation time. [ hpa: made a number of stylistic changes, marked arrays as static const, and made less verbose; use "memblock=debug" for full verbosity. ] Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'kernel/nsproxy.c')
0 files changed, 0 insertions, 0 deletions