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From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
To: Linux PPC dev <linuxppc-dev@ozlabs.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Subject: Regarding DSISR value of 0xa410
Date: Wed, 30 Sep 2015 16:51:21 +0530	[thread overview]
Message-ID: <560BC5B1.1050609@linux.vnet.ibm.com> (raw)

Hey Ben/Michael,

Why does 0xa410 value of DSISR called weird here ? What does this
signify ? Just wondering if we can replace it with a meaningful
macro instead.

arch/powerpc/kernel/exceptions-64s.S

/*
 * Hash table stuff
 */
        .align  7
do_hash_page:
        std     r3,_DAR(r1)
        std     r4,_DSISR(r1)

        andis.  r0,r4,0xa410            /* weird error? */

Regards
Anshuman

                 reply	other threads:[~2015-09-30 11:22 UTC|newest]

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