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powerpc/powernv: Move pnv_ioda_setup_bus_dma under CONFIG_IOMMU_API

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pnv_ioda_setup_bus_dma() is only used when a passed through PE is
returned to the host. If the kernel is built without IOMMU support
this is dead code. Move it under the #ifdef with the rest of the
IOMMU API support.

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200705133557.443607-2-oohall@gmail.com
This commit is contained in:
Oliver O'Halloran 2020-07-05 23:35:57 +10:00 • committed by Michael Ellerman
parent 93eacd94e0
commit e3417faec5
1 changed files with 13 additions and 13 deletions
Download patch file Download diff file Expand all files Collapse all files

26
arch/powerpc/platforms/powernv/pci-ioda.c
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@ -1885,19 +1885,6 @@ static bool pnv_pci_ioda_iommu_bypass_supported(struct pci_dev *pdev,
return false; return false;
} }
static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe, struct pci_bus *bus)
{
struct pci_dev *dev;
list_for_each_entry(dev, &bus->devices, bus_list) {
set_iommu_table_base(&dev->dev, pe->table_group.tables[0]);
dev->dev.archdata.dma_offset = pe->tce_bypass_base;
if ((pe->flags & PNV_IODA_PE_BUS_ALL) && dev->subordinate)
pnv_ioda_setup_bus_dma(pe, dev->subordinate);
}
}
static inline __be64 __iomem *pnv_ioda_get_inval_reg(struct pnv_phb *phb, static inline __be64 __iomem *pnv_ioda_get_inval_reg(struct pnv_phb *phb,
bool real_mode) bool real_mode)
{ {
@ -2547,6 +2534,19 @@ static long pnv_pci_ioda2_create_table_userspace(
return ret; return ret;
} }
static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe, struct pci_bus *bus)
{
struct pci_dev *dev;
list_for_each_entry(dev, &bus->devices, bus_list) {
set_iommu_table_base(&dev->dev, pe->table_group.tables[0]);
dev->dev.archdata.dma_offset = pe->tce_bypass_base;
if ((pe->flags & PNV_IODA_PE_BUS_ALL) && dev->subordinate)
pnv_ioda_setup_bus_dma(pe, dev->subordinate);
}
}
static void pnv_ioda2_take_ownership(struct iommu_table_group *table_group) static void pnv_ioda2_take_ownership(struct iommu_table_group *table_group)
{ {
struct pnv_ioda_pe *pe = container_of(table_group, struct pnv_ioda_pe, struct pnv_ioda_pe *pe = container_of(table_group, struct pnv_ioda_pe,