From bbe888864ec32435e93923c40b9d6ce2bb73844b Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Tue, 8 May 2007 22:27:46 +0100 Subject: [ARM] armv7: add support for ARMv7 cores. This patch adds support for the ARMv7 cores. Signed-off-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/mm/abort-ev7.S | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 arch/arm/mm/abort-ev7.S (limited to 'arch/arm/mm/abort-ev7.S') diff --git a/arch/arm/mm/abort-ev7.S b/arch/arm/mm/abort-ev7.S new file mode 100644 index 00000000000..eb90bce38e1 --- /dev/null +++ b/arch/arm/mm/abort-ev7.S @@ -0,0 +1,32 @@ +#include +#include +/* + * Function: v7_early_abort + * + * Params : r2 = address of aborted instruction + * : r3 = saved SPSR + * + * Returns : r0 = address of abort + * : r1 = FSR, bit 11 = write + * : r2-r8 = corrupted + * : r9 = preserved + * : sp = pointer to registers + * + * Purpose : obtain information about current aborted instruction. + */ + .align 5 +ENTRY(v7_early_abort) + /* + * The effect of data aborts on on the exclusive access monitor are + * UNPREDICTABLE. Do a CLREX to clear the state + */ + clrex + + mrc p15, 0, r1, c5, c0, 0 @ get FSR + mrc p15, 0, r0, c6, c0, 0 @ get FAR + + /* + * V6 code adjusts the returned DFSR. + * New designs should not need to patch up faults. + */ + mov pc, lr -- cgit v1.2.3