Displaying 6 results from an estimated 6 matches for "c59226d7e2f6b5".
2020 Sep 15
0
[PATCH 13/18] 53c700: convert to dma_alloc_noncoherent
Use the new non-coherent DMA API including proper ownership transfers.
Signed-off-by: Christoph Hellwig <hch at lst.de>
---
drivers/scsi/53c700.c | 20 ++++++++++++++------
1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index c59226d7e2f6b5..5117d90ccd9edf 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -269,18 +269,25 @@ NCR_700_get_SXFER(struct scsi_device *SDp)
spi_period(SDp->sdev_target));
}
+static inline dma_addr_t virt_to_dma(struct NCR_700_Host_Parameters *h, void *p)
+{
+ return h->pScr...
2020 Sep 15
0
[PATCH 07/18] 53c700: improve non-coherent DMA handling
...gned-off-by: Christoph Hellwig <hch at lst.de>
---
drivers/scsi/53c700.c | 113 +++++++++++++++++++++++-------------------
drivers/scsi/53c700.h | 17 ++++---
2 files changed, 72 insertions(+), 58 deletions(-)
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index 84b57a8f86bfa9..c59226d7e2f6b5 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -269,6 +269,20 @@ NCR_700_get_SXFER(struct scsi_device *SDp)
spi_period(SDp->sdev_target));
}
+static inline void dma_sync_to_dev(struct NCR_700_Host_Parameters *h,
+ void *addr, size_t size)
+{
+ if (h->noncohe...
2020 Sep 14
2
[PATCH 07/17] 53c700: improve non-coherent DMA handling
...Signed-off-by: Christoph Hellwig <hch at lst.de>
---
drivers/scsi/53c700.c | 113 +++++++++++++++++++++++-------------------
drivers/scsi/53c700.h | 9 ++--
2 files changed, 68 insertions(+), 54 deletions(-)
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index 84b57a8f86bfa9..c59226d7e2f6b5 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -269,6 +269,20 @@ NCR_700_get_SXFER(struct scsi_device *SDp)
spi_period(SDp->sdev_target));
}
+static inline void dma_sync_to_dev(struct NCR_700_Host_Parameters *h,
+ void *addr, size_t size)
+{
+ if (h->noncohe...
2020 Sep 14
2
[PATCH 11/17] sgiseeq: convert to dma_alloc_noncoherent
...sp->srings,
- sp->srings_dma, DMA_ATTR_NON_CONSISTENT);
+ dma_free_noncoherent(&pdev->dev, sizeof(*sp->srings), sp->srings,
+ sp->srings_dma, DMA_BIDIRECTIONAL);
free_netdev(dev);
return 0;
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index c59226d7e2f6b5..9a343f8ecb6c3e 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -300,8 +300,8 @@ NCR_700_detect(struct scsi_host_template *tpnt,
memory = dma_alloc_coherent(dev, TOTAL_MEM_SIZE, &pScript, GFP_KERNEL);
if (!memory) {
hostdata->noncoherent = 1;
- memory = dma_alloc_at...
2020 Sep 14
20
a saner API for allocating DMA addressable pages v2
Hi all,
this series replaced the DMA_ATTR_NON_CONSISTENT flag to dma_alloc_attrs
with a separate new dma_alloc_pages API, which is available on all
platforms. In addition to cleaning up the convoluted code path, this
ensures that other drivers that have asked for better support for
non-coherent DMA to pages with incurring bounce buffering over can finally
be properly supported.
I'm still a
2020 Sep 15
32
a saner API for allocating DMA addressable pages v3
Hi all,
this series replaced the DMA_ATTR_NON_CONSISTENT flag to dma_alloc_attrs
with a separate new dma_alloc_pages API, which is available on all
platforms. In addition to cleaning up the convoluted code path, this
ensures that other drivers that have asked for better support for
non-coherent DMA to pages with incurring bounce buffering over can finally
be properly supported.
As a follow up I