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Groups > linux.kernel > #1195256 > unrolled thread
| Started by | Arnd Bergmann <arnd@arndb.de> |
|---|---|
| First post | 2015-07-29 16:40 +0200 |
| Last post | 2015-08-01 23:30 +0200 |
| Articles | 3 — 2 participants |
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Re: [PATCH] dmaengine: xgene-dma: Add ACPI support for X-Gene DMA engine driver Arnd Bergmann <arnd@arndb.de> - 2015-07-29 16:40 +0200
Re: [PATCH] dmaengine: xgene-dma: Add ACPI support for X-Gene DMA engine driver Rameshwar Sahu <rsahu@apm.com> - 2015-07-30 11:00 +0200
Re: [PATCH] dmaengine: xgene-dma: Add ACPI support for X-Gene DMA engine driver Arnd Bergmann <arnd@arndb.de> - 2015-08-01 23:30 +0200
| From | Arnd Bergmann <arnd@arndb.de> |
|---|---|
| Date | 2015-07-29 16:40 +0200 |
| Subject | Re: [PATCH] dmaengine: xgene-dma: Add ACPI support for X-Gene DMA engine driver |
| Message-ID | <pRAGt-2rb-5@gated-at.bofh.it> |
On Tuesday 21 July 2015 18:44:39 Rameshwar Prasad Sahu wrote: > This patch adds ACPI support for the APM X-Gene DMA engine driver. > > Signed-off-by: Rameshwar Prasad Sahu <rsahu@apm.com> > How does a slave driver refer to a channel in case of ACPI? Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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| From | Rameshwar Sahu <rsahu@apm.com> |
|---|---|
| Date | 2015-07-30 11:00 +0200 |
| Subject | Re: [PATCH] dmaengine: xgene-dma: Add ACPI support for X-Gene DMA engine driver |
| Message-ID | <pRRR0-1NU-15@gated-at.bofh.it> |
| In reply to | #1195256 |
Hi Arnd, On Wed, Jul 29, 2015 at 8:04 PM, Arnd Bergmann <arnd@arndb.de> wrote: > On Tuesday 21 July 2015 18:44:39 Rameshwar Prasad Sahu wrote: >> This patch adds ACPI support for the APM X-Gene DMA engine driver. >> >> Signed-off-by: Rameshwar Prasad Sahu <rsahu@apm.com> >> > > How does a slave driver refer to a channel in case of ACPI? We don't support slave dma here. This driver supports only memcp, xor, pq, scatter-gather offloading, so, client driver can use linux dmaengine APIs like dma_request_channel() etc to request channel. > > Arnd > -- > To unsubscribe from this list: send the line "unsubscribe dmaengine" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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| From | Arnd Bergmann <arnd@arndb.de> |
|---|---|
| Date | 2015-08-01 23:30 +0200 |
| Message-ID | <pSMvT-8nO-1@gated-at.bofh.it> |
| In reply to | #1195825 |
On Thursday 30 July 2015 14:21:07 Rameshwar Sahu wrote: > Hi Arnd, > > On Wed, Jul 29, 2015 at 8:04 PM, Arnd Bergmann <arnd@arndb.de> wrote: > > On Tuesday 21 July 2015 18:44:39 Rameshwar Prasad Sahu wrote: > >> This patch adds ACPI support for the APM X-Gene DMA engine driver. > >> > >> Signed-off-by: Rameshwar Prasad Sahu <rsahu@apm.com> > >> > > > > How does a slave driver refer to a channel in case of ACPI? > > We don't support slave dma here. This driver supports only memcp, xor, > pq, scatter-gather offloading, so, > client driver can use linux dmaengine APIs like dma_request_channel() > etc to request channel. Ok, makes sense. Thanks! Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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