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PCI: remove PCI_DMA_BUS_IS_PHYS

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This was used by the ide, scsi and networking code in the past to
determine if they should bounce payloads.  Now that the dma mapping
always have to support dma to all physical memory (thanks to swiotlb
for non-iommu systems) there is no need to this crude hack any more.

Signed-off-by: Christoph Hellwig <[email protected]>
Acked-by: Palmer Dabbelt <[email protected]> (for riscv)
Reviewed-by: Jens Axboe <[email protected]>
This commit is contained in:
Christoph Hellwig 2018-04-12 09:33:30 +02:00
commit 325ef1857f
31 changed files with 0 additions and 173 deletions
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6
arch/microblaze/include/asm/pci.h
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@ -62,12 +62,6 @@ extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
#define HAVE_PCI_LEGACY 1
/* The PCI address space does equal the physical memory
* address space (no IOMMU). The IDE and SCSI device layers use
* this boolean for bounce buffer decisions.
*/
#define PCI_DMA_BUS_IS_PHYS (1)
extern void pcibios_claim_one_bus(struct pci_bus *b);
extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);