diff options
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index d147d379b1b9..f5e82629e2cd 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -779,9 +779,10 @@ config THREAD_SHIFT want. Only change this if you know what you are doing. config DATA_SHIFT_BOOL - bool "Set custom data alignment" if STRICT_KERNEL_RWX && \ - (PPC_BOOK3S_32 || PPC_8xx) + bool "Set custom data alignment" depends on ADVANCED_OPTIONS + depends on STRICT_KERNEL_RWX + depends on PPC_BOOK3S_32 || (PPC_8xx && !PIN_TLB_DATA && !PIN_TLB_TEXT) help This option allows you to set the kernel data alignment. When RAM is mapped by blocks, the alignment needs to fit the size and @@ -803,7 +804,8 @@ config DATA_SHIFT On 8xx, large pages (512kb or 8M) are used to map kernel linear memory. Aligning to 8M reduces TLB misses as only 8M pages are used - in that case. + in that case. If PIN_TLB is selected, it must be aligned to 8M as + 8M pages will be pinned. config FORCE_MAX_ZONEORDER int "Maximum zone order" |