On Thursday, May 07, 2015 11:07:08 AM Arnd Bergmann wrote:
> On Wednesday 06 May 2015 17:16:35 Suravee Suthikulanit wrote:
> > On 5/6/2015 5:21 PM, Rafael J. Wysocki wrote:
> > > >>+ bool
> > > >>+
> > > >>+config ACPI_SUPPORT_CCA_ZERO
> > >>> > >
> > >>> > >I guess this means "
On Wednesday 06 May 2015 17:16:35 Suravee Suthikulanit wrote:
> On 5/6/2015 5:21 PM, Rafael J. Wysocki wrote:
> > >>+ bool
> > >>+
> > >>+config ACPI_SUPPORT_CCA_ZERO
> >>> > >
> >>> > >I guess this means "we support devices that can DMA, but are not
> >>> > >coherent".
> >>> >
On 5/6/2015 5:21 PM, Rafael J. Wysocki wrote:
> >>+ bool
> >>+
> >>+config ACPI_SUPPORT_CCA_ZERO
> >
> >I guess this means "we support devices that can DMA, but are not coherent".
> >right?
>
>Yes, basically when _CCA=0.
So what about
ARCH_SUPPORT_CACHE_INCOHERENT_DMA
Since this is
On Tuesday, May 05, 2015 11:15:37 PM Suravee Suthikulpanit wrote:
> [RESEND]
>
> On 5/5/15 15:36, Rafael J. Wysocki wrote:
> > On Tuesday, May 05, 2015 10:12:05 AM Suravee Suthikulpanit wrote:
> >> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
> >> index ab2cbb5..dd386e9 100644
> >> ---
On 5/5/15 22:13, Hanjun Guo wrote:
On 2015年05月05日 23:12, Suravee Suthikulpanit wrote:
This patch implements support for ACPI _CCA object, which is
introduced in
ACPIv5.1, can be used for specifying device DMA coherency attribute.
The parsing logic traverses device namespace to parse coherency
i
[RESEND]
On 5/5/15 15:36, Rafael J. Wysocki wrote:
On Tuesday, May 05, 2015 10:12:05 AM Suravee Suthikulpanit wrote:
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index ab2cbb5..dd386e9 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -54,6 +54,12 @@ config ACPI_GENERI
On 2015年05月05日 23:12, Suravee Suthikulpanit wrote:
This patch implements support for ACPI _CCA object, which is introduced in
ACPIv5.1, can be used for specifying device DMA coherency attribute.
The parsing logic traverses device namespace to parse coherency
information, and stores it in acpi_de
On Tuesday, May 05, 2015 10:12:05 AM Suravee Suthikulpanit wrote:
> This patch implements support for ACPI _CCA object, which is introduced in
> ACPIv5.1, can be used for specifying device DMA coherency attribute.
>
> The parsing logic traverses device namespace to parse coherency
> information, a
This patch implements support for ACPI _CCA object, which is introduced in
ACPIv5.1, can be used for specifying device DMA coherency attribute.
The parsing logic traverses device namespace to parse coherency
information, and stores it in acpi_device_flags. Then uses it to call
arch_setup_dma_ops()
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