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From: Sascha Hauer <s.hauer@pengutronix.de>
To: barebox@lists.infradead.org
Subject: [PATCH 7/9] block: use dma_alloc to allocate buffers
Date: Thu, 21 Jun 2012 11:55:15 +0200	[thread overview]
Message-ID: <1340272517-8972-8-git-send-email-s.hauer@pengutronix.de> (raw)
In-Reply-To: <1340272517-8972-1-git-send-email-s.hauer@pengutronix.de>

Drivers may use dma to transfer blocks, so put them into
dma save memory.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 common/block.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/common/block.c b/common/block.c
index 71ecfd5..f3bcdc8 100644
--- a/common/block.c
+++ b/common/block.c
@@ -24,6 +24,7 @@
 #include <malloc.h>
 #include <linux/err.h>
 #include <linux/list.h>
+#include <dma.h>
 
 #define BLOCKSIZE(blk)	(1 << blk->blockbits)
 
@@ -357,7 +358,7 @@ int blockdevice_register(struct block_device *blk)
 
 	for (i = 0; i < 8; i++) {
 		struct chunk *chunk = xzalloc(sizeof(*chunk));
-		chunk->data = xmalloc(BUFSIZE);
+		chunk->data = dma_alloc(BUFSIZE);
 		chunk->num = i;
 		list_add_tail(&chunk->list, &blk->idle_blocks);
 	}
@@ -376,12 +377,12 @@ int blockdevice_unregister(struct block_device *blk)
 	writebuffer_flush(blk);
 
 	list_for_each_entry_safe(chunk, tmp, &blk->buffered_blocks, list) {
-		free(chunk->data);
+		dma_free(chunk->data);
 		free(chunk);
 	}
 
 	list_for_each_entry_safe(chunk, tmp, &blk->idle_blocks, list) {
-		free(chunk->data);
+		dma_free(chunk->data);
 		free(chunk);
 	}
 
-- 
1.7.10


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  parent reply	other threads:[~2012-06-21  9:55 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-06-21  9:55 [PATCH] more dma fixes Sascha Hauer
2012-06-21  9:55 ` [PATCH 1/9] USB core: allocate setup_packet using dma_alloc Sascha Hauer
2012-06-21  9:55 ` [PATCH 2/9] USB core: device descriptor " Sascha Hauer
2012-06-21  9:55 ` [PATCH 3/9] USB core: Allocate tmpbuf " Sascha Hauer
2012-06-21  9:55 ` [PATCH 4/9] USB ehci: Use dma coherent buffers for qh/qtd Sascha Hauer
2012-06-21  9:55 ` [PATCH 5/9] USB ehci: put fields of struct qTD directly into struct QH Sascha Hauer
2012-06-21  9:55 ` [PATCH 6/9] USB storage: use dma_alloc where appropriate Sascha Hauer
2012-06-21  9:55 ` Sascha Hauer [this message]
2012-06-21  9:55 ` [PATCH 8/9] partition: Use dma_alloc for allocating buffers Sascha Hauer
2012-06-21  9:55 ` [PATCH 9/9] USB ehci: rework cache handling Sascha Hauer

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