Attachment 728074 Details for Bug 1043231

[patch] 0016-dmaengine-core-expose-max-burst-capability-to-client.patch

0016-dmaengine-core-expose-max-burst-capability-to-client.patch (text/plain), 2.76 KB, created by Matwey Kornilov on 2017-06-07 19:37:42 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Matwey Kornilov

Created: 2017-06-07 19:37:42 UTC

Size: 2.76 KB

patch

obsolete

>From 621f3e8f1570d54abdcd56704cab9d83777f5ee5 Mon Sep 17 00:00:00 2001
>From: Shawn Lin <shawn.lin@rock-chips.com>
>Date: Fri, 22 Jan 2016 19:06:50 +0800
>Subject: [PATCH 16/19] dmaengine: core: expose max burst capability to clients
>
>This patch add max_burst to dma_get_slave_caps for clients
>to get the burst capability of slave dma controller.
>
>Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
>Signed-off-by: Caesar Wang <wxt@rock-chips.com>
>Signed-off-by: Vinod Koul <vinod.koul@intel.com>
>Git-commit: 6d5bbed30f89acd2ae0d23b3fff5b13b307525d9
>Patch-mainline: v4.6-rc1
>Signed-off-by: Matwey V. Kornilov <matwey.kornilov@gmail.com>
>---
> drivers/dma/dmaengine.c   | 1 +
> include/linux/dmaengine.h | 4 ++++
> 2 files changed, 5 insertions(+)
>
>diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
>index 543a25bf5927..37d144c95fab 100644
>--- a/drivers/dma/dmaengine.c
>+++ b/drivers/dma/dmaengine.c
>@@ -496,6 +496,7 @@ int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps)
> 	caps->src_addr_widths = device->src_addr_widths;
> 	caps->dst_addr_widths = device->dst_addr_widths;
> 	caps->directions = device->directions;
>+	caps->max_burst = device->max_burst;
> 	caps->residue_granularity = device->residue_granularity;
> 	caps->descriptor_reuse = device->descriptor_reuse;
> 
>diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
>index bdde3deb7cd2..bfe6714d3e61 100644
>--- a/include/linux/dmaengine.h
>+++ b/include/linux/dmaengine.h
>@@ -401,6 +401,7 @@ enum dma_residue_granularity {
>  * 	since the enum dma_transfer_direction is not defined as bits for each
>  * 	type of direction, the dma controller should fill (1 << <TYPE>) and same
>  * 	should be checked by controller as well
>+ * @max_burst: max burst capability per-transfer
>  * @cmd_pause: true, if pause and thereby resume is supported
>  * @cmd_terminate: true, if terminate cmd is supported
>  * @residue_granularity: granularity of the reported transfer residue
>@@ -411,6 +412,7 @@ struct dma_slave_caps {
> 	u32 src_addr_widths;
> 	u32 dst_addr_widths;
> 	u32 directions;
>+	u32 max_burst;
> 	bool cmd_pause;
> 	bool cmd_terminate;
> 	enum dma_residue_granularity residue_granularity;
>@@ -670,6 +672,7 @@ struct dma_filter {
>  * 	the enum dma_transfer_direction is not defined as bits for
>  * 	each type of direction, the dma controller should fill (1 <<
>  * 	<TYPE>) and same should be checked by controller as well
>+ * @max_burst: max burst capability per-transfer
>  * @residue_granularity: granularity of the transfer residue reported
>  *	by tx_status
>  * @device_alloc_chan_resources: allocate resources and return the
>@@ -728,6 +731,7 @@ struct dma_device {
> 	u32 src_addr_widths;
> 	u32 dst_addr_widths;
> 	u32 directions;
>+	u32 max_burst;
> 	bool descriptor_reuse;
> 	enum dma_residue_granularity residue_granularity;
> 
>-- 
>2.12.0
>

Actions: View | Diff

Attachments on bug 1043231: 728059 | 728060 | 728061 | 728062 | 728063 | 728064 | 728065 | 728066 | 728067 | 728068 | 728069 | 728070 | 728071 | 728072 | 728073 | 728074 | 728075 | 728076 | 728077 | 728521 | 728695 | 728770