x86, amd_nb: Clarify F15h, model 30h GART and L3 support
x86, amd_nb: Clarify F15h, model 30h GART and L3 support

commit 7d64ac6422092adbbdaa279ab32f9d4c90a84558 upstream.

F15h, models 0x30 and later don't have a GART. Note that. Also check
CPUID leaf 0x80000006 for L3 prescence because there are models which
don't sport an L3 cache.

Signed-off-by: Aravind Gopalakrishnan <d1386a6e24d6af768a23e2ace8645d92bd2ab963@amd.com>
[ Boris: rewrite commit message, cleanup comments. ]
Signed-off-by: Borislav Petkov <0691a664b24b6f15b20cd5aee64b72271db08be1@suse.de>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>


TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas