linux - linux

	Commit message (Collapse)	Author	Age	Files	Lines
*	ARM: entry: prefetch abort: tail-call the main prefetch abort handler	Russell King	2011-07-02	1	-4/+5
\| \| \| \| \| \| \| \|	Tail-call the main C prefetch abort handler code from the per-CPU helper code. Also note that the helper function becomes ABI compliant in terms of the registers preserved. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
*	ARM: entry: prefetch abort helper: pass aborted pc in r4 rather than r0	Russell King	2011-06-30	1	-1/+2
\| \| \| \| \| \| \|	This avoids unnecessary instructions for CPUs which implement the IFAR (instruction fault address register). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
*	ARM: 5727/1: Pass IFSR register to do_PrefetchAbort()	Kirill A. Shutemov	2009-10-02	1	-0/+19
	Instruction fault status register, IFSR, was introduced on ARMv6 to provide status information about the last insturction fault. It needed for proper prefetch abort handling. Now we have three prefetch abort model: * legacy - for CPUs before ARMv6. They doesn't provide neither IFSR nor IFAR. We simulate IFSR with section translation fault status for them to generalize code; * ARMv6 - provides IFSR, but not IFAR; * ARMv7 - provides both IFSR and IFAR. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>