Mark DMA devices on AXS103 and HSDK boards connected through IOC
port as dma-coherent.
Signed-off-by: Eugeniy Paltsev
---
arch/arc/boot/dts/axc003.dtsi | 26 ++
arch/arc/boot/dts/axc003_idu.dtsi | 26 ++
arch/arc/boot/dts/hsdk.dts| 4 +
The ARC HS processor provides an IOC port (I/O coherency bus
interface) that allows external devices such as DMA devices
to access memory through the cache hierarchy, providing
coherency between I/O transactions and the complete memory
hierarchy.
Some recent SoC with ARC HS (like HSDK) allow to se
Refactoring, no functional change intended.
Signed-off-by: Eugeniy Paltsev
---
arch/arc/mm/dma.c | 28 ++--
1 file changed, 10 insertions(+), 18 deletions(-)
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index b693818cd8e5..46584c7c2858 100644
--- a/arch/arc/mm/dma.
The ARC HS processor provides an IOC port (I/O coherency bus
interface) that allows external devices such as DMA devices
to access memory through the cache hierarchy, providing
coherency between I/O transactions and the complete memory
hierarchy.
Some recent SoC with ARC HS (like HSDK) allow to se
Signed-off-by: Eugeniy Paltsev
---
arch/arc/mm/cache.c | 13 +
1 file changed, 13 insertions(+)
diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index 34935ce38631..e0b3484641c3 100644
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -1143,6 +1143,19 @@ noinline void __in
From: Leon Romanovsky
Signed-off-by: Leon Romanovsky
---
Resend with proper Vineet's email
---
MAINTAINERS | 1 +
1 file changed, 1 insertion(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index c79f306a936a..6be664ed0527 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5444,6 +5444,7 @@ F:d
All DMA devices on ARC haven't worked with SW cache control
since commit a8eb92d02dd7 ("arc: fix arc_dma_{map,unmap}_page")
This happens because we don't check direction argument at all in
new implementation. Fix that.
Fixies: commit a8eb92d02dd7 ("arc: fix arc_dma_{map,unmap}_page")
Signed-off-by
On 07/24/2018 07:13 AM, Eugeniy Paltsev wrote:
> All DMA devices on ARC haven't worked with SW cache control
> since commit a8eb92d02dd7 ("arc: fix arc_dma_{map,unmap}_page")
> This happens because we don't check direction argument at all in
> new implementation. Fix that.
Good find and I presume
From: Eugeniy Paltsev
ARC backend for dma_sync_single_for_(device|cpu) was broken as it was
not honoring the @dir argument and simply forcing it based on the call:
- arc_dma_sync_single_for_device(dir) assumed DMA_TO_DEVICE (cache wback)
- arc_dma_sync_single_for_cpu(dir) assumed DMA_FROM_DEVIC
From: Randy Dunlap
../arch/arc/mm/cache.c: In function 'flush_anon_page':
../arch/arc/mm/cache.c:1062:55: warning: passing argument 2 of
'__flush_dcache_page' makes integer from pointer without a cast
[-Wint-conversion]
__flush_dcache_page((phys_addr_t)page_address(page), page_address(page));
From: Randy Dunlap
Fix printk format warning in arch/arc/plat-eznps/mtm.c:
In file included from ../include/linux/printk.h:7,
from ../include/linux/kernel.h:14,
from ../include/linux/list.h:9,
from ../include/linux/smp.h:12,
fro
From: Randy Dunlap
Add to fix build errors.
Both ctop.h and use u32 types and cause many
errors.
Examples:
../include/soc/nps/common.h:71:4: error: unknown type name 'u32'
u32 __reserved:20, cluster:4, core:4, thread:4;
../include/soc/nps/common.h:76:3: error: unknown type name 'u32'
u3
From: Randy Dunlap
Fix build errors in arch/arc/'s delay.h:
- add for loops_per_jiffy
- add for "u64"
In file included from ../drivers/infiniband/hw/cxgb3/cxio_hal.c:32:
../arch/arc/include/asm/delay.h: In function '__udelay':
../arch/arc/include/asm/delay.h:61:12: error: 'u64' undeclared (fir
From: Randy Dunlap
Hi,
Here are a few patches that fix build errors or warnings that
I encountered while doing arc "allmodconfig" builds.
These patches do not fix all of the build issues.
arch/arc/include/asm/delay.h|2 ++
arch/arc/mm/cache.c | 11 ++
On 07/24/2018 01:46 PM, Randy Dunlap wrote:
> From: Randy Dunlap
>
> Fix build errors in arch/arc/'s delay.h:
> - add for loops_per_jiffy
> - add for "u64"
>
> In file included from ../drivers/infiniband/hw/cxgb3/cxio_hal.c:32:
> ../arch/arc/include/asm/delay.h: In function '__udelay':
> ../arch
On 07/24/2018 03:04 PM, Vineet Gupta wrote:
> On 07/24/2018 01:46 PM, Randy Dunlap wrote:
>> From: Randy Dunlap
>>
>> Fix build errors in arch/arc/'s delay.h:
>> - add for loops_per_jiffy
>> - add for "u64"
>>
>> In file included from ../drivers/infiniband/hw/cxgb3/cxio_hal.c:32:
>> ../arch/arc/
On 07/24/2018 01:46 PM, Randy Dunlap wrote:
> From: Randy Dunlap
>
> ../arch/arc/mm/cache.c: In function 'flush_anon_page':
> ../arch/arc/mm/cache.c:1062:55: warning: passing argument 2 of
> '__flush_dcache_page' makes integer from pointer without a cast
> [-Wint-conversion]
> __flush_dcache_p
On 07/24/2018 05:02 PM, Vineet Gupta wrote:
> On 07/24/2018 01:46 PM, Randy Dunlap wrote:
>> From: Randy Dunlap
>>
>> ../arch/arc/mm/cache.c: In function 'flush_anon_page':
>> ../arch/arc/mm/cache.c:1062:55: warning: passing argument 2 of
>> '__flush_dcache_page' makes integer from pointer withou
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