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scsi: ufs: exynos: Fix DMA alignment for PAGE_SIZE != 4096 

[ Upstream commit 86bd0c4a2a ]

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: 2b2bfc8aa5 ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Bart Van Assche 2023-01-12 15:42:13 -08:00 committed by Greg Kroah-Hartman
parent 243a79c3df
commit 473cc51699
3 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/ufs/core/ufshcd.c
View File

@ -5068,8 +5068,8 @@ static int ufshcd_slave_configure(struct scsi_device *sdev)
ufshcd_hpb_configure(hba, sdev);
blk_queue_update_dma_pad(q, PRDT_DATA_BYTE_COUNT_PAD - 1);
if (hba->quirks & UFSHCD_QUIRK_ALIGN_SG_WITH_PAGE_SIZE)
blk_queue_update_dma_alignment(q, PAGE_SIZE - 1);
if (hba->quirks & UFSHCD_QUIRK_4KB_DMA_ALIGNMENT)
blk_queue_update_dma_alignment(q, 4096 - 1);
/*
* Block runtime-pm until all consumers are added.
* Refer ufshcd_setup_links().

2
drivers/ufs/host/ufs-exynos.c
View File

@ -1673,7 +1673,7 @@ static const struct exynos_ufs_drv_data exynos_ufs_drvs = {
UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR |
UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL |
UFSHCD_QUIRK_SKIP_DEF_UNIPRO_TIMEOUT_SETTING |
UFSHCD_QUIRK_ALIGN_SG_WITH_PAGE_SIZE,
UFSHCD_QUIRK_4KB_DMA_ALIGNMENT,
.opts = EXYNOS_UFS_OPT_HAS_APB_CLK_CTRL |
EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL |
EXYNOS_UFS_OPT_BROKEN_RX_SEL_IDX |

4
include/ufs/ufshcd.h
View File

@ -566,9 +566,9 @@ 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