From: Heiner Kallweit <hkallweit1@gmail.com>
To: Ulf Hansson <ulf.hansson@linaro.org>,
Carlo Caione <carlo@caione.org>,
Kevin Hilman <khilman@baylibre.com>
Cc: linux-mmc@vger.kernel.org, linux-amlogic@lists.infradead.org
Subject: [PATCH v2 7/9] mmc: meson-gx: reduce bounce buffer size
Date: Wed, 1 Feb 2017 07:49:18 +0100 [thread overview]
Message-ID: <90d34a64-bd3e-dcf2-4c36-5ef4e2ac8666@gmail.com> (raw)
In-Reply-To: <584e5061-d359-1436-05ee-3767a5a4b10f@gmail.com>
A bounce buffer of 512K isn't needed as the max request size is
511 * 512 byte.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
v2:
- no changes
---
drivers/mmc/host/meson-gx-mmc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
index 883263c5..48ce4ba4 100644
--- a/drivers/mmc/host/meson-gx-mmc.c
+++ b/drivers/mmc/host/meson-gx-mmc.c
@@ -785,7 +785,7 @@ static int meson_mmc_probe(struct platform_device *pdev)
mmc->max_req_size = mmc->max_blk_count * mmc->max_blk_size;
/* data bounce buffer */
- host->bounce_buf_size = SZ_512K;
+ host->bounce_buf_size = mmc->max_req_size;
host->bounce_buf =
dma_alloc_coherent(host->dev, host->bounce_buf_size,
&host->bounce_dma_addr, GFP_KERNEL);
--
2.11.0
next prev parent reply other threads:[~2017-02-01 6:49 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <584e5061-d359-1436-05ee-3767a5a4b10f@gmail.com>
2017-02-01 6:48 ` [PATCH v2 2/9] mmc: meson-gx: minor improvements in meson_mmc_set_ios Heiner Kallweit
2017-02-01 6:48 ` [PATCH v2 3/9] mmc: meson-gx: improve meson_mmc_clk_set Heiner Kallweit
2017-02-01 6:48 ` [PATCH v2 4/9] mmc: meson-gx: improve meson_mmc_irq_thread Heiner Kallweit
2017-02-03 18:03 ` Kevin Hilman
2017-02-01 6:48 ` [PATCH v2 5/9] mmc: meson-gx: improve interrupt handling Heiner Kallweit
2017-02-03 18:10 ` Kevin Hilman
2017-02-01 6:49 ` [PATCH v2 6/9] mmc: meson-gx: set max block count and request size Heiner Kallweit
2017-02-01 6:49 ` Heiner Kallweit [this message]
2017-02-03 18:18 ` [PATCH v2 7/9] mmc: meson-gx: reduce bounce buffer size Kevin Hilman
2017-02-01 6:49 ` [PATCH v2 8/9] mmc: meson-gx: remove unneeded checks in remove Heiner Kallweit
2017-02-03 18:20 ` Kevin Hilman
2017-02-01 6:49 ` [PATCH v2 9/9] mmc: meson-gx: add support for HS400 mode Heiner Kallweit
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