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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2016-04-29 16:25:24 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2016-05-01 11:32:13 +0300
commit8ffb4103f5e28d7e7890ed4774d8e009f253f56e (patch)
treeff1ac82b4edb32fbda14adae78a034f2240ee8bf /arch/powerpc/Kconfig.debug
parent5bcca743cb6e3ab97ff400ef92c7f57c787020f6 (diff)
downloadlinux-8ffb4103f5e28d7e7890ed4774d8e009f253f56e.tar.xz
IB/qib: Use cache inhibitted and guarded mapping on powerpc
The driver was requesting for a writethrough mapping. But with those flags we will end up with an SAO mapping because we now have memory conherence always enabled. ie, the existing mapping will end up with a WIMG value 0b1110 which is Strong Access Order. Update this to use cache inhibitted guarded mapping. Cc: Doug Ledford <dledford@redhat.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: linux-rdma@vger.kernel.org Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/Kconfig.debug')
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