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* [ARM] Introduce new PTE memory type bitsRussell King2008-10-011-1/+1
| | | | | | | | | | | | Provide L_PTE_MT_xxx definitions to describe the memory types that we use in Linux/ARM. These definitions are carefully picked such that: 1. their LSBs match what is required for pre-ARMv6 CPUs. 2. they all have a unique encoding, including after modification by build_mem_type_table() (the result being that some have more than one combination.) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4078/1: Fix ARM copypage cache coherency problemsRichard Purdie2006-12-301-0/+6
| | | | | | | | | | | | | If PG_dcache_dirty is set for a page, we need to flush the source page before performing any copypage operation using a different virtual address. This fixes the copypage implementations for XScale, StrongARM and ARMv6. This patch fixes segmentation faults seen in the dynamic linker under the usage patterns in glibc 2.4/2.5. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Unuse another Linux PTE bitRussell King2006-12-131-1/+1
| | | | | | | | | | L_PTE_ASID is not really required to be stored in every PTE, since we can identify it via the address passed to set_pte_at(). So, create set_pte_ext() which takes the address of the PTE to set, the Linux PTE value, and the additional CPU PTE bits which aren't encoded in the Linux PTE value. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Cleanup arch/arm/mm a littleRussell King2006-09-201-2/+2
| | | | | | | | | | Move top_pmd into arch/arm/mm/mm.h - nothing outside arch/arm/mm references it. Move the repeated definition of TOP_PTE into mm/mm.h, as well as a few function prototypes. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: Fix build errorRussell King2005-05-161-3/+3
| | | | | | Mainline kernels don't have VECTORS_HIGH nor COPYPAGE_MINICACHE yet. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: Move copy/clear user_page locking into implementationRussell King2005-05-101-0/+111
Move the locking for copy_user_page() and clear_user_page() into the implementations which require locking. For simple memcpy/ memset based implementations, the locking is extra overhead which is not necessary, and prevents preemption occuring. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
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