From: Neil Armstrong <neil.armstrong@linaro.org>
Date: Mon, 30 Sep 2024 12:44:23 +0000 (+0200)
Subject: ufs: allocate descriptors with size aligned with DMA_MINALIGN
X-Git-Url: http://git.dujemihanovic.xyz/html/static/git-favicon.png?a=commitdiff_plain;h=9c223d8d8b8fbad667971f36eabe203480a8c39b;p=u-boot.git

ufs: allocate descriptors with size aligned with DMA_MINALIGN

Align the allocation size with DMA_MINALIGN to make sure we do not
flush/invalidate data from following allocations.

Reviewed-by: Neha Malcom Francis <n-francis@ti.com>
Tested-by: Venkatesh Yadav Abbarapu <venkatesh.abbarapu@amd.com>
Tested-by: Julius Lehmann <lehmanju@devpi.de>
Link: https://lore.kernel.org/r/20240930-topic-ufs-enhancements-v3-1-58234f84ab89@linaro.org
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---

diff --git a/drivers/ufs/ufs.c b/drivers/ufs/ufs.c
index be64bf971f..e005cc9060 100644
--- a/drivers/ufs/ufs.c
+++ b/drivers/ufs/ufs.c
@@ -633,7 +633,9 @@ static int ufshcd_memory_alloc(struct ufs_hba *hba)
 	/* Allocate one Transfer Request Descriptor
 	 * Should be aligned to 1k boundary.
 	 */
-	hba->utrdl = memalign(1024, sizeof(struct utp_transfer_req_desc));
+	hba->utrdl = memalign(1024,
+			      ALIGN(sizeof(struct utp_transfer_req_desc),
+				    ARCH_DMA_MINALIGN));
 	if (!hba->utrdl) {
 		dev_err(hba->dev, "Transfer Descriptor memory allocation failed\n");
 		return -ENOMEM;
@@ -642,7 +644,9 @@ static int ufshcd_memory_alloc(struct ufs_hba *hba)
 	/* Allocate one Command Descriptor
 	 * Should be aligned to 1k boundary.
 	 */
-	hba->ucdl = memalign(1024, sizeof(struct utp_transfer_cmd_desc));
+	hba->ucdl = memalign(1024,
+			     ALIGN(sizeof(struct utp_transfer_cmd_desc),
+				   ARCH_DMA_MINALIGN));
 	if (!hba->ucdl) {
 		dev_err(hba->dev, "Command descriptor memory allocation failed\n");
 		return -ENOMEM;