On Wed, Aug 12, 2015 at 09:05:15AM -0700, Linus Torvalds wrote:
[ Again, I'm responding to one random patch - this pattern was in
other patches too. ]
A question: do we actually expect to mix page-less and pageful SG
entries in the same SG list?
How does that happen?
Both for DAX and
On Wed, Aug 12, 2015 at 03:42:47PM +0300, Boaz Harrosh wrote:
The support I have suggested and submitted for zone-less sections.
(In my add_persistent_memory() patchset)
Would work perfectly well and transparent for all such multimedia cases.
(All hacks removed). In fact I have loaded pmem
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 a/arch
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
--- a/include/asm
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 changed
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 a/arch
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
---
arch
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 a/arch
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
-by: Christoph Hellwig h...@lst.de
---
arch/sparc/mm/iommu.c | 17 +
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c
index 491511d..3ed53d7 100644
--- a/arch/sparc/mm/iommu.c
+++ b/arch/sparc/mm/iommu.c
@@ -174,7 +174,7 @@ static void
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/arc/Kconfig | 1 +
arch/arc/include/asm/dma-mapping.h | 187 +
arch/arc/mm/dma.c | 151 --
3 files changed, 109 insertions(+), 230 del
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/m68k/Kconfig | 1 +
arch/m68k/include/asm/dma-mapping.h | 112 ++--
arch/m68k/kernel/dma.c | 61 +---
3 files changed, 32 insertions(+), 142 deletions(-)
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/nios2/Kconfig | 1 +
arch/nios2/include/asm/dma-mapping.h | 123 ++---
arch/nios2/mm/dma-mapping.c | 147 +++
3 files changed, 85 insertions(+
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
arch/metag/Kconfig | 1 +
arch/metag/include/asm/dma-mapping.h | 179 +--
arch/metag/kernel/dma.c | 146 +---
3 files changed, 117 insertions(+
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