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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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8dfe7ac96f
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>
22 lines
444 B
ArmAsm
22 lines
444 B
ArmAsm
#include <linux/linkage.h>
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#include <asm/assembler.h>
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/*
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* Function: v7_pabort
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*
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* Params : r2 = pt_regs
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* : r4 = address of aborted instruction
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* : r5 = psr for parent context
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*
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* Returns : r4 - r11, r13 preserved
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*
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* Purpose : obtain information about current prefetch abort.
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*/
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.align 5
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ENTRY(v7_pabort)
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mrc p15, 0, r0, c6, c0, 2 @ get IFAR
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mrc p15, 0, r1, c5, c0, 1 @ get IFSR
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b do_PrefetchAbort
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ENDPROC(v7_pabort)
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