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| author |   Christophe Leroy <christophe.leroy@c-s.fr> | 2018-11-29 14:07:13 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2018-12-04 19:45:01 +1100 |
| commit | 5af543be14cdad5d515631c5fe6984813fe0db70 (patch) | |
| tree | 2ac55599f7dc58accf45beac0783f1649f254fb7 /arch/powerpc/Kconfig | |
| parent | powerpc/8xx: Move SW perf counters in first 32kb of memory (diff) | |
| download | linux-dev-5af543be14cdad5d515631c5fe6984813fe0db70.tar.xz linux-dev-5af543be14cdad5d515631c5fe6984813fe0db70.zip | |
powerpc/8xx: Temporarily disable 16k pages and hugepages
In preparation of making use of hardware assistance in TLB handlers,
this patch temporarily disables 16K pages and hugepages. The reason
is that when using HW assistance in 4K pages mode, the linux model
fit with the HW model for 4K pages and 8M pages.
However for 16K pages and 512K mode some additional work is needed
to get linux model fit with HW model.
For the 8M pages, they will naturaly come back when we switch to
HW assistance, without any additional handling.
In order to keep the following patch smaller, the removal of the
current special handling for 8M pages gets removed here as well.
Therefore the 4K pages mode will be implemented first and without
support for 512k hugepages. Then the 512k hugepages will be brought
back. And the 16K pages will be implemented in the following step.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 8ea7c2c02cbf..bfb5ee99396c 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -689,7 +689,7 @@ config PPC_4K_PAGES config PPC_16K_PAGES bool "16k page size" - depends on 44x || PPC_8xx + depends on 44x config PPC_64K_PAGES bool "64k page size" |