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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 <hch@lst.de>
Acked-by: Palmer Dabbelt <palmer@sifive.com> (for riscv)
Reviewed-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig
2018-04-12 09:33:30 +02:00
parent ab74cfebaf
commit 325ef1857f
31 changed files with 0 additions and 173 deletions
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6
arch/m68k/include/asm/pci.h
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@@ -4,12 +4,6 @@
#include <asm-generic/pci.h>
/* The PCI address space does equal the physical memory
* address space. The networking and block device layers use
* this boolean for bounce buffer decisions.
*/
#define PCI_DMA_BUS_IS_PHYS (1)
#define pcibios_assign_all_busses() 1
#define PCIBIOS_MIN_IO 0x00000100