From: Faiz Abbas <faiz_abbas@ti.com>
Date: Tue, 19 Sep 2017 11:23:50 +0000 (+0530)
Subject: dm: core: Round up size when allocating so that it is cache line aligned
X-Git-Tag: v2017.11-rc2~62^2~2
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=5924da1dfe56d32a45b8adf29bdc8caf788bd4c8;p=u-boot

dm: core: Round up size when allocating so that it is cache line aligned

The size variable may not be always be a mulitple of
ARCH_DMA_MINALIGN and using it to flush cache leads to cache
misaligned warnings.

Therefore, round up the size to a multiple of ARCH_DMA_MINLAIGN
when allocating private data.

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---

diff --git a/drivers/core/device.c b/drivers/core/device.c
index de63e5335a..9a46a7bbe5 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -254,6 +254,7 @@ static void *alloc_priv(int size, uint flags)
 	void *priv;
 
 	if (flags & DM_FLAG_ALLOC_PRIV_DMA) {
+		size = ROUND(size, ARCH_DMA_MINALIGN);
 		priv = memalign(ARCH_DMA_MINALIGN, size);
 		if (priv) {
 			memset(priv, '\0', size);