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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-06-18 20:03:30 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-06-18 20:05:48 +0100 |
| commit | b3f288de7c8add67a3364e989b865b6537838662 (patch) | |
| tree | 389c80ae471e4e24f25e6c38862a89ee5d833d86 /arch/powerpc/kernel/cpu_setup_power.S | |
| parent | 04e71d72abec3e1a2b2ac10f96ced1a471ecb3aa (diff) | |
| parent | 8d962507007357d6fbbcbdd1647faa389a9aed6d (diff) | |
Merge branch 'for-rmk/hugepages' of git://git.linaro.org/people/stevecapper/linux into devel-stable
These changes bring both HugeTLB support and Transparent HugePage
(THP) support to ARM. Only long descriptors (LPAE) are supported
in this series.
The code has been tested on an Arndale board (Exynos 5250).
Diffstat (limited to 'arch/powerpc/kernel/cpu_setup_power.S')
| -rw-r--r-- | arch/powerpc/kernel/cpu_setup_power.S | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/cpu_setup_power.S b/arch/powerpc/kernel/cpu_setup_power.S index a283b6442b26..18b5b9cf8e37 100644 --- a/arch/powerpc/kernel/cpu_setup_power.S +++ b/arch/powerpc/kernel/cpu_setup_power.S @@ -135,8 +135,12 @@ __init_HFSCR: blr __init_TLB: - /* Clear the TLB */ - li r6,128 + /* + * Clear the TLB using the "IS 3" form of tlbiel instruction + * (invalidate by congruence class). P7 has 128 CCs, P8 has 512 + * so we just always do 512 + */ + li r6,512 mtctr r6 li r7,0xc00 /* IS field = 0b11 */ ptesync |