| Message ID | 20240910-topic-ufs-enhancements-v1-1-3ee0bffacc64@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | ufs: enhancements to support Qualcomm UFS controllers | expand |
Hi Neil, On 10/09/24 14:50, Neil Armstrong wrote: > Align the allocation size with DMA_MINALIGN to make sure we do not > flush/invalidate data from following allocations. > > Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> > --- > drivers/ufs/ufs.c | 8 ++++++-- > 1 file changed, 6 insertions(+), 2 deletions(-) > > diff --git a/drivers/ufs/ufs.c b/drivers/ufs/ufs.c > index be64bf971f1..e005cc90608 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; > Reviewed-by: Neha Malcom Francis <n-francis@ti.com> Sorry for the delay in sending out this review, I had reviewed the first few patches that you had send in an earlier version and looks like this cleanup/fix was needed. Thanks!
diff --git a/drivers/ufs/ufs.c b/drivers/ufs/ufs.c index be64bf971f1..e005cc90608 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;
Align the allocation size with DMA_MINALIGN to make sure we do not flush/invalidate data from following allocations. Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> --- drivers/ufs/ufs.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)