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| author | Catalin Marinas <catalin.marinas@arm.com> | 2010-08-31 13:05:22 +0100 |
|---|---|---|
| committer | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2010-10-26 11:39:54 +0530 |
| commit | 9a6655e49fd98f3748bb80da20705448aad9ee57 (patch) | |
| tree | db5aba3a886712f54f4816137c4cea08b954f5c6 /arch/arm/mm/Kconfig | |
| parent | 899611ee7d373e5eeda08e9a8632684e1ebbbf00 (diff) | |
| download | linux-9a6655e49fd98f3748bb80da20705448aad9ee57.tar.bz2 | |
ARM: Improve the L2 cache performance when PL310 is used
With this L2 cache controller, the cache maintenance by PA and sync
operations are atomic and do not require a "wait" loop. This patch
conditionally defines the cache_wait() function.
Since L2x0 cache controllers do not work with ARMv7 CPUs, the patch
automatically enables CACHE_PL310 when only CPU_V7 is defined.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm/mm/Kconfig')
| -rw-r--r-- | arch/arm/mm/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index a0a2928ae4dd..4414a01e1e8a 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -779,6 +779,14 @@ config CACHE_L2X0 help This option enables the L2x0 PrimeCell. +config CACHE_PL310 + bool + depends on CACHE_L2X0 + default y if CPU_V7 && !CPU_V6 + help + This option enables optimisations for the PL310 cache + controller. + config CACHE_TAUROS2 bool "Enable the Tauros2 L2 cache controller" depends on (ARCH_DOVE || ARCH_MMP) |