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authorBart Van Assche <bvanassche@acm.org>2023-01-13 02:42:13 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2023-01-24 05:35:54 +0300
commit86bd0c4a2a5dc4265884648cb92c681646509692 (patch)
tree38b3b0cff95831d3809a1642e22b37bdff3f0e11 /include/ufs
parent5a5ef64f28edda2d62109e9dfc87a9212f06bf5b (diff)
downloadlinux-86bd0c4a2a5dc4265884648cb92c681646509692.tar.xz
scsi: ufs: exynos: Fix DMA alignment for PAGE_SIZE != 4096
The Exynos UFS controller only supports scatter/gather list elements that are aligned on a 4 KiB boundary. Fix DMA alignment in case PAGE_SIZE != 4096. Rename UFSHCD_QUIRK_ALIGN_SG_WITH_PAGE_SIZE into UFSHCD_QUIRK_4KB_DMA_ALIGNMENT. Cc: Kiwoong Kim <kwmad.kim@samsung.com> Fixes: 2b2bfc8aa519 ("scsi: ufs: Introduce a quirk to allow only page-aligned sg entries") Signed-off-by: Bart Van Assche <bvanassche@acm.org> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Tested-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/ufs')
-rw-r--r--include/ufs/ufshcd.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index 1779238d8a56..57a5af27522a 100644
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -583,9 +583,9 @@ enum ufshcd_quirks {
UFSHCD_QUIRK_SKIP_DEF_UNIPRO_TIMEOUT_SETTING = 1 << 13,
/*
- * This quirk allows only sg entries aligned with page size.
+ * Align DMA SG entries on a 4 KiB boundary.
*/
- UFSHCD_QUIRK_ALIGN_SG_WITH_PAGE_SIZE = 1 << 14,
+ UFSHCD_QUIRK_4KB_DMA_ALIGNMENT = 1 << 14,
/*
* This quirk needs to be enabled if the host controller does not