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30bda41aba
linux_dsm_epyc7002/arch/powerpc
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Aneesh Kumar K.V 30bda41aba powerpc/mm: Drop WIMG in favour of new constants 
PowerISA 3.0 introduces two pte bits with the below meaning for radix:
  00 -> Normal Memory
  01 -> Strong Access Order (SAO)
  10 -> Non idempotent I/O (Cache inhibited and guarded)
  11 -> Tolerant I/O (Cache inhibited)

We drop the existing WIMG bits in the Linux page table in favour of the
above constants. We loose _PAGE_WRITETHRU with this conversion. We only
use writethru via pgprot_cached_wthru() which is used by
fbdev/controlfb.c which is Apple control display and also PPC32.

With respect to _PAGE_COHERENCE, we have been marking hpte always
coherent for some time now. htab_convert_pte_flags() always added
HPTE_R_M.

NOTE: KVM changes need closer review.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-05-01 18:32:33 +10:00
..
boot powerpc/fsl/dts: Add "jedec,spi-nor" flash compatible 2016-03-11 20:06:41 -06:00
configs powerpc updates for 4.6 2016-03-19 15:38:41 -07:00
crypto powerpc updates for 4.6 2016-03-19 15:38:41 -07:00
include powerpc/mm: Drop WIMG in favour of new constants 2016-05-01 18:32:33 +10:00
kernel powerpc/mm: Use a helper for finding pte bits mapping I/O area 2016-05-01 18:32:32 +10:00
kvm powerpc/mm: Drop WIMG in favour of new constants 2016-05-01 18:32:33 +10:00
lib powerpc: rework sparse for lib/xor_vmx.c 2016-04-27 09:33:37 +10:00
math-emu
mm powerpc/mm: Drop WIMG in favour of new constants 2016-05-01 18:32:33 +10:00
net net: filter: make JITs zero A for SKF_AD_ALU_XOR_X 2016-01-06 00:43:52 -05:00
oprofile powerpc: Fix misspellings in comments. 2016-03-01 19:27:20 +11:00
perf powerpc/mm: Use pte_user() instead of open coding 2016-05-01 18:32:25 +10:00
platforms powerpc/mm: Drop WIMG in favour of new constants 2016-05-01 18:32:33 +10:00
scripts powerpc/ftrace: Add Kconfig & Make glue for mprofile-kernel 2016-03-07 14:53:56 +11:00
sysdev powerpc/mpic: handle subsys_system_register() failure 2016-04-27 09:23:41 +10:00
xmon powerpc/xmon: Add xmon command to dump process/task similar to ps(1) 2016-02-10 10:22:04 +11:00
Kconfig powerpc/perf: Add support for sampling interrupt register state 2016-04-21 23:32:59 +10:00
Kconfig.debug powerpc/mm: Always use STRICT_MM_TYPECHECKS 2016-05-01 18:32:14 +10:00
Makefile Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux into next 2016-03-14 20:05:14 +11:00
relocs_check.sh powerpc: Convert relocs_check to a shell script using grep 2015-03-23 14:47:39 +11:00