linux-kernel - [PATCH v2 1/3] dmaengine: Extend the dmaengine

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Message-Id: <20210113114923.9231-2-peter.ujfalusi@gmail.com>
Date:   Wed, 13 Jan 2021 13:49:21 +0200
From:   Peter Ujfalusi <peter.ujfalusi@...il.com>
To:     vkoul@...nel.org
Cc:     dan.j.williams@...el.com, linux-kernel@...r.kernel.org,
        dmaengine@...r.kernel.org, vigneshr@...com,
        grygorii.strashko@...com, kishon@...com
Subject: [PATCH v2 1/3] dmaengine: Extend the dmaengine_alignment for 128 and 256 bytes

From: Peter Ujfalusi <peter.ujfalusi@...com>

Some DMA device can benefit with higher order of alignment than the maximum
of 64 bytes currently defined.

Define 128 and 256 bytes alignment for these devices.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...il.com>
Tested-by: Kishon Vijay Abraham I <kishon@...com>
---
 include/linux/dmaengine.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 68130f5f599e..004736b6a9c8 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -745,6 +745,8 @@ enum dmaengine_alignment {
 	DMAENGINE_ALIGN_16_BYTES = 4,
 	DMAENGINE_ALIGN_32_BYTES = 5,
 	DMAENGINE_ALIGN_64_BYTES = 6,
+	DMAENGINE_ALIGN_128_BYTES = 7,
+	DMAENGINE_ALIGN_256_BYTES = 8,
 };
 
 /**
-- 
2.30.0