linux_dsm_epyc7002/arch
Fenghua Yu 4ab1586488 x86/cpufeature: Add RDT CPUID feature bits
Check CPUID leaves for all the Resource Director Technology (RDT)
Cache Allocation Technology (CAT) bits.

Presence of allocation features:
  CPUID.(EAX=7H, ECX=0):EBX[bit 15]	X86_FEATURE_RDT_A

L2 and L3 caches are each separately enabled:
  CPUID.(EAX=10H, ECX=0):EBX[bit 1]	X86_FEATURE_CAT_L3
  CPUID.(EAX=10H, ECX=0):EBX[bit 2]	X86_FEATURE_CAT_L2

L3 cache may support independent control of allocation for
code and data (CDP = Code/Data Prioritization):
  CPUID.(EAX=10H, ECX=1):ECX[bit 2]	X86_FEATURE_CDP_L3

[ tglx: Fixed up Borislavs comments and moved the feature bits into a gap ]

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Acked-by: "Borislav Petkov" <bp@suse.de>
Cc: "Ravi V Shankar" <ravi.v.shankar@intel.com>
Cc: "Tony Luck" <tony.luck@intel.com>
Cc: "David Carrillo-Cisneros" <davidcc@google.com>
Cc: "Sai Prakhya" <sai.praneeth.prakhya@intel.com>
Cc: "Peter Zijlstra" <peterz@infradead.org>
Cc: "Stephane Eranian" <eranian@google.com>
Cc: "Dave Hansen" <dave.hansen@intel.com>
Cc: "Shaohua Li" <shli@fb.com>
Cc: "Nilay Vaish" <nilayvaish@gmail.com>
Cc: "Vikas Shivappa" <vikas.shivappa@linux.intel.com>
Cc: "Ingo Molnar" <mingo@elte.hu>
Cc: "H. Peter Anvin" <h.peter.anvin@intel.com>
Link: http://lkml.kernel.org/r/1477142405-32078-5-git-send-email-fenghua.yu@intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-10-26 23:12:38 +02:00
..
alpha Merge branch 'gup_flag-cleanups' 2016-10-19 08:39:47 -07:00
arc Merge branch 'work.uaccess' into for-linus 2016-10-14 20:42:44 -04:00
arm arm/arm64: KVM: Map the BSS at HYP 2016-10-21 17:26:24 +01:00
arm64 KVM fixes for v4.9-rc2 2016-10-21 19:09:29 -07:00
avr32
blackfin Merge branch 'gup_flag-cleanups' 2016-10-19 08:39:47 -07:00
c6x
cris mm: replace access_process_vm() write parameter with gup_flags 2016-10-19 08:31:25 -07:00
frv
h8300
hexagon
ia64 Merge branch 'gup_flag-cleanups' 2016-10-19 08:39:47 -07:00
m32r mm: replace access_process_vm() write parameter with gup_flags 2016-10-19 08:31:25 -07:00
m68k Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2016-10-14 14:26:58 -07:00
metag Metag architecture fixes for v4.9-rc1 2016-10-14 11:11:39 -07:00
microblaze
mips KVM fixes for v4.9-rc2 2016-10-21 19:09:29 -07:00
mn10300
nios2
openrisc
parisc
powerpc powerpc fixes for 4.9 #3 2016-10-21 19:13:00 -07:00
s390 KVM fixes for v4.9-rc2 2016-10-21 19:09:29 -07:00
score Merge branch 'gup_flag-cleanups' 2016-10-19 08:39:47 -07:00
sh Minor changes to improve J2 support and match Kconfig expectations of 2016-10-19 11:21:06 -07:00
sparc Merge branch 'gup_flag-cleanups' 2016-10-19 08:39:47 -07:00
tile
um
unicore32
x86 x86/cpufeature: Add RDT CPUID feature bits 2016-10-26 23:12:38 +02:00
xtensa
.gitignore
Kconfig This adds a new gcc plugin named "latent_entropy". It is designed to 2016-10-15 10:03:15 -07:00