Alexey Kardashevskiy 10b35b2b74 powerpc/powernv: Do not set "read" flag if direction==DMA_NONE ... Normally a bitmap from the iommu_table is used to track what TCE entry is in use. Since we are going to use iommu_table without its locks and do xchg() instead, it becomes essential not to put bits which are not implied in the direction flag as the old TCE value (more precisely - the permission bits) will be used to decide whether to put the page or not. This adds iommu_direction_to_tce_perm() (its counterpart is there already) and uses it for powernv's pnv_tce_build(). Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Reviewed-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2015-06-11 15:14:56 +10:00
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asm	powerpc/powernv: Do not set "read" flag if direction==DMA_NONE	2015-06-11 15:14:56 +10:00
uapi/asm	powerpc/powernv: Add opal-prd channel	2015-06-05 08:32:21 +10:00