[PATCH 7/9] ARM: Improve the L2 cache performance when PL310 is used

[PATCH 0/9] Various patches for 2.6.37-rc1 · catalin.marinas@arm.com (Catalin Marinas) · 2010-08-31
[PATCH 1/9] ARM: Allow lazy cache flushing via PG_arch_1 for highmem pages · catalin.marinas@arm.com (Catalin Marinas) · 2010-08-31
[PATCH 2/9] ARM: Assume new page cache pages have dirty D-cache · catalin.marinas@arm.com (Catalin Marinas) · 2010-08-31
[PATCH 3/9] ARM: Introduce __sync_icache_dcache() for VIPT caches · catalin.marinas@arm.com (Catalin Marinas) · 2010-08-31
[PATCH 4/9] ARM: Use lazy cache flushing on ARMv7 SMP systems · catalin.marinas@arm.com (Catalin Marinas) · 2010-08-31
[PATCH 5/9] ARM: Remove superfluous flush_kernel_dcache_page() · catalin.marinas@arm.com (Catalin Marinas) · 2010-08-31
[PATCH 6/9] ARM: Implement phys_mem_access_prot() to avoid attributes aliasing · catalin.marinas@arm.com (Catalin Marinas) · 2010-08-31
[PATCH 7/9] ARM: Improve the L2 cache performance when PL310 is used · catalin.marinas@arm.com (Catalin Marinas) · 2010-08-31
[PATCH 7/9] ARM: Improve the L2 cache performance when PL310 is used · Russell King - ARM Linux <hidden> · 2010-09-13
[PATCH 7/9] ARM: Improve the L2 cache performance when PL310 is used · catalin.marinas@arm.com (Catalin Marinas) · 2010-09-13
[PATCH 8/9] ARM: Remove the domain switching on ARMv6k/v7 CPUs · catalin.marinas@arm.com (Catalin Marinas) · 2010-08-31
[PATCH 9/9] ARM: Add SWP/SWPB emulation for ARMv7 processors (v5) · catalin.marinas@arm.com (Catalin Marinas) · 2010-08-31
[PATCH 9/9] ARM: Add SWP/SWPB emulation for ARMv7 processors (v5) · Kirill A. Shutemov <hidden> · 2010-08-31
[PATCH 9/9] ARM: Add SWP/SWPB emulation for ARMv7 processors (v5) · catalin.marinas@arm.com (Catalin Marinas) · 2010-09-06
[PATCH 9/9] ARM: Add SWP/SWPB emulation for ARMv7 processors (v5) · Russell King - ARM Linux <hidden> · 2010-09-13
[PATCH 9/9] ARM: Add SWP/SWPB emulation for ARMv7 processors (v5) · Leif Lindholm <hidden> · 2010-09-14
[PATCH 9/9] ARM: Add SWP/SWPB emulation for ARMv7 processors (v5) · Olof Johansson <hidden> · 2010-09-01
[PATCH 9/9] ARM: Add SWP/SWPB emulation for ARMv7 processors (v5) · Leif Lindholm <hidden> · 2010-09-02
[PATCH 9/9] ARM: Add SWP/SWPB emulation for ARMv7 processors (v5) · Olof Johansson <hidden> · 2010-09-02

STALE5757d

From: Russell King - ARM Linux <hidden>
Date: 2010-09-13 11:36:07

On Tue, Aug 31, 2010 at 02:58:41PM +0100, Catalin Marinas wrote:

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.

This should be a run-time test, as we're moving towards integrating
ARMv6 and ARMv7 support into a single kernel image.

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