Make all cache invalidation conditional on sg_has_page() and use
sg_phys to get the physical address directly.
Signed-off-by: Christoph Hellwig h...@lst.de
---
arch/nios2/mm/dma-mapping.c | 29 +++--
1 file changed, 15 insertions(+), 14 deletions(-)
diff --git
Signed-off-by: Christoph Hellwig h...@lst.de
---
include/asm-generic/dma-mapping-common.h | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/include/asm-generic/dma-mapping-common.h
b/include/asm-generic/dma-mapping-common.h
index 940d5ec..afc3eaf 100644
---
For the iommu offset we just need and offset into the page. Calculate
that using the physical address instead of using the virtual address
so that we don't require a virtual mapping.
Signed-off-by: Christoph Hellwig h...@lst.de
---
arch/powerpc/kernel/iommu.c | 14 +++---
1 file
Make all cache invalidation conditional on sg_has_page() and use
sg_phys to get the physical address directly.
Signed-off-by: Christoph Hellwig h...@lst.de
---
arch/arc/include/asm/dma-mapping.h | 26 +++---
1 file changed, 19 insertions(+), 7 deletions(-)
diff --git
Make all cache invalidation conditional on sg_has_page() and use
sg_phys to get the physical address directly. To do this consolidate
the two platform callouts using pages and virtual addresses into a
single one using a physical address.
Signed-off-by: Christoph Hellwig h...@lst.de
---
Make all cache invalidation conditional on sg_has_page() and use
sg_phys to get the physical address directly.
Signed-off-by: Christoph Hellwig h...@lst.de
---
arch/parisc/kernel/pci-dma.c | 29 ++---
1 file changed, 18 insertions(+), 11 deletions(-)
diff --git
Make all cache invalidation conditional on sg_has_page().
Signed-off-by: Christoph Hellwig h...@lst.de
---
arch/sh/kernel/dma-nommu.c | 11 ++-
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c
index 5b0bfcd..3b64dc7
Pass a PFN to iommu_get_one instad of calculating it locall from a
page structure so that we don't need pages for every address we can
DMA to or from.
Also further restrict the cache flushing as we now have a non-highmem
way of not kernel virtual mapped physical addresses.
Signed-off-by:
On Wed, 12 Aug 2015, Christoph Hellwig wrote:
Use sg_phys() instead of page_to_phys(sg_page(sg)) so that we don't
require a page structure for all DMA memory.
Signed-off-by: Christoph Hellwig h...@lst.de
Acked-by: Sebastian Ott seb...@linux.vnet.ibm.com
---
arch/s390/pci/pci_dma.c | 20
