summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/include/asm/machdep.h
diff options
context:
space:
mode:
authorAlexey Kardashevskiy <aik@ozlabs.ru>2015-06-05 08:35:06 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2015-06-11 07:14:56 +0200
commitda004c3600f52e4f05017f60970e5010978006bc (patch)
tree2f8573ad65adccea54af87be3ecd5bb5f0fa2007 /arch/powerpc/include/asm/machdep.h
parentpowerpc/powernv: Do not set "read" flag if direction==DMA_NONE (diff)
downloadlinux-da004c3600f52e4f05017f60970e5010978006bc.tar.xz
linux-da004c3600f52e4f05017f60970e5010978006bc.zip
powerpc/iommu: Move tce_xxx callbacks from ppc_md to iommu_table
This adds a iommu_table_ops struct and puts pointer to it into the iommu_table struct. This moves tce_build/tce_free/tce_get/tce_flush callbacks from ppc_md to the new struct where they really belong to. This adds the requirement for @it_ops to be initialized before calling iommu_init_table() to make sure that we do not leave any IOMMU table with iommu_table_ops uninitialized. This is not a parameter of iommu_init_table() though as there will be cases when iommu_init_table() will not be called on TCE tables, for example - VFIO. This does s/tce_build/set/, s/tce_free/clear/ and removes "tce_" redundant prefixes. This removes tce_xxx_rm handlers from ppc_md but does not add them to iommu_table_ops as this will be done later if we decide to support TCE hypercalls in real mode. This removes _vm callbacks as only virtual mode is supported by now so this also removes @rm parameter. For pSeries, this always uses tce_buildmulti_pSeriesLP/ tce_buildmulti_pSeriesLP. This changes multi callback to fall back to tce_build_pSeriesLP/tce_free_pSeriesLP if FW_FEATURE_MULTITCE is not present. The reason for this is we still have to support "multitce=off" boot parameter in disable_multitce() and we do not want to walk through all IOMMU tables in the system and replace "multi" callbacks with single ones. For powernv, this defines _ops per PHB type which are P5IOC2/IODA1/IODA2. This makes the callbacks for them public. Later patches will extend callbacks for IODA1/2. No change in behaviour is expected. 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>
Diffstat (limited to 'arch/powerpc/include/asm/machdep.h')
-rw-r--r--arch/powerpc/include/asm/machdep.h25
1 files changed, 0 insertions, 25 deletions
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index 0d387d0570cd..952579f5e79a 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -65,31 +65,6 @@ struct machdep_calls {
* destroyed as well */
void (*hpte_clear_all)(void);
- int (*tce_build)(struct iommu_table *tbl,
- long index,
- long npages,
- unsigned long uaddr,
- enum dma_data_direction direction,
- struct dma_attrs *attrs);
- void (*tce_free)(struct iommu_table *tbl,
- long index,
- long npages);
- unsigned long (*tce_get)(struct iommu_table *tbl,
- long index);
- void (*tce_flush)(struct iommu_table *tbl);
-
- /* _rm versions are for real mode use only */
- int (*tce_build_rm)(struct iommu_table *tbl,
- long index,
- long npages,
- unsigned long uaddr,
- enum dma_data_direction direction,
- struct dma_attrs *attrs);
- void (*tce_free_rm)(struct iommu_table *tbl,
- long index,
- long npages);
- void (*tce_flush_rm)(struct iommu_table *tbl);
-
void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size,
unsigned long flags, void *caller);
void (*iounmap)(volatile void __iomem *token);