[...]
>
> 2. Add missing stuff to support multislot mode in DesignWare MMC driver.
> * Add missing slot switch to __dw_mci_start_request() function.
> * Refactor set_ios function:
>a) Calculate common clock which is
> suitable for all slots instead of directly use clock value
> p
Hi Ulf,
On Fri, 2018-04-20 at 09:35 +0200, Ulf Hansson wrote:
> [...]
>
> >
> > 2. Add missing stuff to support multislot mode in DesignWare MMC driver.
> > * Add missing slot switch to __dw_mci_start_request() function.
> > * Refactor set_ios function:
> >a) Calculate common clock which i
To: io...@lists.linux-foundation.org
Cc: linux-a...@vger.kernel.org
Cc: Michal Simek
Cc: Greentime Hu
Cc: Vincent Chen
Cc: linux-al...@vger.kernel.org
Cc: linux-snps-arc@lists.infradead.org
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-c6x-...@linux-c6x.org
Cc: linux-hexa...@vger.kernel.org
Most mainstream architectures are using 65536 entries, so lets stick to
that. If someone is really desperate to override it that can still be
done through , but I'd rather see a really good
rationale for that.
Signed-off-by: Christoph Hellwig
---
arch/arm/mm/dma-mapping-nommu.c | 9 -
The generic dma_direct implementation does the same thing as the alpha
pci-noop implementation, just with more bells and whistles. And unlike
the current code it at least has a theoretical chance to actually compile.
Signed-off-by: Christoph Hellwig
---
arch/alpha/Kconfig | 1
ARCH_DMA_ADDR_T_64BIT is always true for 64-bit architectures now, so we
can skip the clause requiring it. 'n' is the default default, so no need
to explicitly state it.
Signed-off-by: Christoph Hellwig
---
lib/Kconfig | 6 ++
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/li
Add a new dma_map_ops implementation that uses dma-direct for the
address mapping of streaming mappings, and which requires arch-specific
implemenations of coherent allocate/free.
Architectures have to provide flushing helpers to ownership trasnfers
to the device and/or CPU, and can provide option
Remove the dma_ops indirection.
Signed-off-by: Christoph Hellwig
---
arch/alpha/include/asm/dma-mapping.h | 4 ++--
arch/alpha/kernel/pci_iommu.c| 4 +---
2 files changed, 3 insertions(+), 5 deletions(-)
diff --git a/arch/alpha/include/asm/dma-mapping.h
b/arch/alpha/include/asm/dma-map
Switch to the generic noncoherent direct mapping implementation.
Signed-off-by: Christoph Hellwig
---
arch/arc/Kconfig | 4 +
arch/arc/include/asm/Kbuild| 1 +
arch/arc/include/asm/dma-mapping.h | 21 -
arch/arc/mm/dma.c | 141 +++--
Switch to the generic noncoherent direct mapping implementation.
Signed-off-by: Christoph Hellwig
---
arch/c6x/Kconfig | 3 +
arch/c6x/include/asm/Kbuild| 1 +
arch/c6x/include/asm/dma-mapping.h | 28 --
arch/c6x/include/asm/setup.h | 2 +
arch/c6x/kern
Switch to the generic noncoherent direct mapping implementation.
Signed-off-by: Christoph Hellwig
---
arch/m68k/Kconfig | 2 +
arch/m68k/include/asm/Kbuild| 1 +
arch/m68k/include/asm/dma-mapping.h | 12 -
arch/m68k/kernel/dma.c | 68 -
Switch to the generic noncoherent direct mapping implementation.
This removes the previous sync_single_for_cpu implementation, which looks
bogus given that no syncing is happening in the similar but more
important unmap_single case.
This adds the previously missing sync_sg_for_device implementati
Switch to the generic noncoherent direct mapping implementation.
This removes the direction-based optimizations in
sync_{single,sg}_for_{cpu,device} which were marked untestested and
do not match the usually very well tested {un,}map_{single,sg}
implementations.
Signed-off-by: Christoph Hellwig
Both unused.
Signed-off-by: Christoph Hellwig
---
arch/microblaze/include/asm/pgtable.h | 3 --
arch/microblaze/mm/consistent.c | 45 ---
2 files changed, 48 deletions(-)
diff --git a/arch/microblaze/include/asm/pgtable.h
b/arch/microblaze/include/asm/pgtable.h
i
Switch to the generic noncoherent direct mapping implementation.
This makes sure kmap_atomic_pfn is consistently used for access to
virtual addresses instead of either using the slower plain kmap
or blindly expecting page_address() to work.
This makes sure the cache_sync routines is called in the
Remove the indirection through the dma_ops variable, and just return
nommu_dma_ops directly from get_arch_dma_ops.
Signed-off-by: Christoph Hellwig
---
arch/sh/include/asm/dma-mapping.h | 5 ++---
arch/sh/kernel/dma-nommu.c| 8 +---
arch/sh/mm/consistent.c | 3 ---
arch/
Switch to the generic noncoherent direct mapping implementation.
Fix sync_single_for_device to do the same cache coherency operations as
the more tested map_single path, as both should transfer ownership to
the device.
Remove the sync_single_for_cpu implementation as no cache coherency
operations
Switch to the generic noncoherent direct mapping implementation.
This removes the previous sync_single_for_device implementation, which
looks bogus given that no syncing is happening in the similar but more
important map_single case.
Signed-off-by: Christoph Hellwig
---
arch/sparc/Kconfig
Switch to the generic noncoherent direct mapping implementation.
Signed-off-by: Christoph Hellwig
---
arch/xtensa/Kconfig | 3 +
arch/xtensa/include/asm/Kbuild| 1 +
arch/xtensa/include/asm/dma-mapping.h | 26 --
arch/xtensa/kernel/pci-dma.c | 130 +++-
Switch to the generic noncoherent direct mapping implementation.
Parisc previously had two different non-coherent dma ops implementation
that just different in the way coherent allocations were handled or not
handled. The different behavior is not selected at runtime in the
arch_dma_alloc and arc
This is a slight change in behavior as we avoid the detour through the
virtual mapping for the coherent allocator, but if this CPU really is
coherent that should be the right thing to do.
Signed-off-by: Christoph Hellwig
---
arch/sh/Kconfig | 1 +
arch/sh/include/asm/dma-mappin
Switch to the generic noncoherent direct mapping implementation.
Signed-off-by: Christoph Hellwig
---
arch/nios2/Kconfig | 3 +
arch/nios2/include/asm/Kbuild| 1 +
arch/nios2/include/asm/dma-mapping.h | 20
arch/nios2/mm/dma-mapping.c | 139 +++---
And use it in the maple bus code to avoid a dma API dependency.
Signed-off-by: Christoph Hellwig
---
arch/sh/include/asm/cacheflush.h | 7 +++
arch/sh/mm/consistent.c | 5 +
drivers/sh/maple/maple.c | 7 ---
3 files changed, 12 insertions(+), 7 deletions(-)
diff --g
Switch to the generic noncoherent direct mapping implementation for
the nommu dma map implementation.
Signed-off-by: Christoph Hellwig
---
arch/arc/Kconfig| 1 +
arch/arm/Kconfig| 4 +
arch/arm/mm/dma-mapping-nommu.c | 139 +---
3 f
Switch to the generic noncoherent direct mapping implementation.
Signed-off-by: Christoph Hellwig
---
arch/sh/Kconfig | 3 +-
arch/sh/include/asm/Kbuild| 1 +
arch/sh/include/asm/dma-mapping.h | 26 ---
arch/sh/kernel/Makefile | 1 -
arch/sh/kernel/
On 20 April 2018 at 09:42, Alexey Brodkin wrote:
> Hi Ulf,
>
> On Fri, 2018-04-20 at 09:35 +0200, Ulf Hansson wrote:
>> [...]
>>
>> >
>> > 2. Add missing stuff to support multislot mode in DesignWare MMC driver.
>> > * Add missing slot switch to __dw_mci_start_request() function.
>> > * Refactor
Hi Christoph,
Nice cleanup! Looks good overall, just a couple of nits.
On 20/04/18 09:02, Christoph Hellwig wrote:
[...]
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 7f5cdc1e6b29..712a897174e4 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -41,6 +41,11 @@
#define HASH_FN_SHIFT
Hi Ulf,
On Fri, 2018-04-20 at 09:35 +0200, Ulf Hansson wrote:
> [...]
>
> >
> > 2. Add missing stuff to support multislot mode in DesignWare MMC driver.
> > * Add missing slot switch to __dw_mci_start_request() function.
> > * Refactor set_ios function:
> >a) Calculate common clock which i
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