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-rw-r--r--drivers/misc/mic/Kconfig1
-rw-r--r--drivers/misc/mic/bus/mic_bus.c1
-rw-r--r--drivers/misc/mic/bus/scif_bus.c2
-rw-r--r--drivers/misc/mic/bus/scif_bus.h2
-rw-r--r--drivers/misc/mic/bus/vop_bus.c2
-rw-r--r--drivers/misc/mic/host/mic_boot.c1
-rw-r--r--drivers/misc/mic/scif/scif_nodeqp.c2
-rw-r--r--drivers/misc/mic/scif/scif_rma.c4
-rw-r--r--drivers/misc/mic/vop/Makefile2
-rw-r--r--drivers/misc/mic/vop/vop_main.c3
-rw-r--r--drivers/misc/mic/vop/vop_vringh.c24
11 files changed, 28 insertions, 16 deletions
diff --git a/drivers/misc/mic/Kconfig b/drivers/misc/mic/Kconfig
index b9bb086785db..8a7c2c5711d5 100644
--- a/drivers/misc/mic/Kconfig
+++ b/drivers/misc/mic/Kconfig
@@ -35,6 +35,7 @@ config SCIF_BUS
config VOP_BUS
tristate "VOP Bus Driver"
+ depends on HAS_DMA
select DMA_OPS
help
This option is selected by any driver which registers a
diff --git a/drivers/misc/mic/bus/mic_bus.c b/drivers/misc/mic/bus/mic_bus.c
index ed9a8351c3bf..a08cb29692a8 100644
--- a/drivers/misc/mic/bus/mic_bus.c
+++ b/drivers/misc/mic/bus/mic_bus.c
@@ -9,6 +9,7 @@
* This implementation is very similar to the the virtio bus driver
* implementation @ drivers/virtio/virtio.c
*/
+#include <linux/dma-map-ops.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/idr.h>
diff --git a/drivers/misc/mic/bus/scif_bus.c b/drivers/misc/mic/bus/scif_bus.c
index ae84109649d0..ad7c3604f151 100644
--- a/drivers/misc/mic/bus/scif_bus.c
+++ b/drivers/misc/mic/bus/scif_bus.c
@@ -9,7 +9,7 @@
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/idr.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-map-ops.h>
#include "scif_bus.h"
diff --git a/drivers/misc/mic/bus/scif_bus.h b/drivers/misc/mic/bus/scif_bus.h
index 642cd43bcabc..4981eb56f879 100644
--- a/drivers/misc/mic/bus/scif_bus.h
+++ b/drivers/misc/mic/bus/scif_bus.h
@@ -12,7 +12,7 @@
* Everything a scif driver needs to work with any particular scif
* hardware abstraction layer.
*/
-#include <linux/dma-mapping.h>
+#include <linux/dma-map-ops.h>
#include <linux/mic_common.h>
#include "../common/mic_dev.h"
diff --git a/drivers/misc/mic/bus/vop_bus.c b/drivers/misc/mic/bus/vop_bus.c
index 3c865534868a..6935ddca1bd5 100644
--- a/drivers/misc/mic/bus/vop_bus.c
+++ b/drivers/misc/mic/bus/vop_bus.c
@@ -9,7 +9,7 @@
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/idr.h>
-#include <linux/dma-mapping.h>
+#include <linux/dma-map-ops.h>
#include "vop_bus.h"
diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c
index fb5b3989753d..8cb85b8b3e19 100644
--- a/drivers/misc/mic/host/mic_boot.c
+++ b/drivers/misc/mic/host/mic_boot.c
@@ -10,6 +10,7 @@
#include <linux/firmware.h>
#include <linux/pci.h>
#include <linux/kmod.h>
+#include <linux/dma-map-ops.h>
#include <linux/mic_common.h>
#include <linux/mic_bus.h>
#include "../bus/scif_bus.h"
diff --git a/drivers/misc/mic/scif/scif_nodeqp.c b/drivers/misc/mic/scif/scif_nodeqp.c
index e0748be373f1..384ce08fa98a 100644
--- a/drivers/misc/mic/scif/scif_nodeqp.c
+++ b/drivers/misc/mic/scif/scif_nodeqp.c
@@ -363,7 +363,7 @@ scif_p2p_setsg(phys_addr_t pa, int page_size, int page_cnt)
struct page *page;
int i;
- sg = kcalloc(page_cnt, sizeof(struct scatterlist), GFP_KERNEL);
+ sg = kmalloc_array(page_cnt, sizeof(struct scatterlist), GFP_KERNEL);
if (!sg)
return NULL;
sg_init_table(sg, page_cnt);
diff --git a/drivers/misc/mic/scif/scif_rma.c b/drivers/misc/mic/scif/scif_rma.c
index 2da3b474f486..18fb9d8b8a4b 100644
--- a/drivers/misc/mic/scif/scif_rma.c
+++ b/drivers/misc/mic/scif/scif_rma.c
@@ -1392,6 +1392,8 @@ retry:
(prot & SCIF_PROT_WRITE) ? FOLL_WRITE : 0,
pinned_pages->pages);
if (nr_pages != pinned_pages->nr_pages) {
+ if (pinned_pages->nr_pages < 0)
+ pinned_pages->nr_pages = 0;
if (try_upgrade) {
if (ulimit)
__scif_dec_pinned_vm_lock(mm, nr_pages);
@@ -1408,7 +1410,6 @@ retry:
if (pinned_pages->nr_pages < nr_pages) {
err = -EFAULT;
- pinned_pages->nr_pages = nr_pages;
goto dec_pinned;
}
@@ -1421,7 +1422,6 @@ dec_pinned:
__scif_dec_pinned_vm_lock(mm, nr_pages);
/* Something went wrong! Rollback */
error_unmap:
- pinned_pages->nr_pages = nr_pages;
scif_destroy_pinned_pages(pinned_pages);
*pages = NULL;
dev_dbg(scif_info.mdev.this_device,
diff --git a/drivers/misc/mic/vop/Makefile b/drivers/misc/mic/vop/Makefile
index 579da3868c8e..51b9b0022786 100644
--- a/drivers/misc/mic/vop/Makefile
+++ b/drivers/misc/mic/vop/Makefile
@@ -3,7 +3,7 @@
# Makefile - Intel MIC Linux driver.
# Copyright(c) 2016, Intel Corporation.
#
-obj-m := vop.o
+obj-$(CONFIG_VOP) := vop.o
vop-objs += vop_main.o
vop-objs += vop_debugfs.o
diff --git a/drivers/misc/mic/vop/vop_main.c b/drivers/misc/mic/vop/vop_main.c
index 55e7f21e51f4..714b94f42d38 100644
--- a/drivers/misc/mic/vop/vop_main.c
+++ b/drivers/misc/mic/vop/vop_main.c
@@ -124,6 +124,7 @@ static void vop_transport_features(struct virtio_device *vdev)
* creates virtio rings on preallocated memory.
*/
__virtio_clear_bit(vdev, VIRTIO_F_RING_PACKED);
+ __virtio_set_bit(vdev, VIRTIO_F_ACCESS_PLATFORM);
}
static int vop_finalize_features(struct virtio_device *vdev)
@@ -320,7 +321,7 @@ static struct virtqueue *vop_find_vq(struct virtio_device *dev,
/* First assign the vring's allocated in host memory */
vqconfig = _vop_vq_config(vdev->desc) + index;
memcpy_fromio(&config, vqconfig, sizeof(config));
- _vr_size = vring_size(le16_to_cpu(config.num), MIC_VIRTIO_RING_ALIGN);
+ _vr_size = round_up(vring_size(le16_to_cpu(config.num), MIC_VIRTIO_RING_ALIGN), 4);
vr_size = PAGE_ALIGN(_vr_size + sizeof(struct _mic_vring_info));
va = vpdev->hw_ops->remap(vpdev, le64_to_cpu(config.address), vr_size);
if (!va)
diff --git a/drivers/misc/mic/vop/vop_vringh.c b/drivers/misc/mic/vop/vop_vringh.c
index 30eac172f017..7014ffe88632 100644
--- a/drivers/misc/mic/vop/vop_vringh.c
+++ b/drivers/misc/mic/vop/vop_vringh.c
@@ -296,7 +296,7 @@ static int vop_virtio_add_device(struct vop_vdev *vdev,
num = le16_to_cpu(vqconfig[i].num);
mutex_init(&vvr->vr_mutex);
- vr_size = PAGE_ALIGN(vring_size(num, MIC_VIRTIO_RING_ALIGN) +
+ vr_size = PAGE_ALIGN(round_up(vring_size(num, MIC_VIRTIO_RING_ALIGN), 4) +
sizeof(struct _mic_vring_info));
vr->va = (void *)
__get_free_pages(GFP_KERNEL | __GFP_ZERO,
@@ -308,7 +308,7 @@ static int vop_virtio_add_device(struct vop_vdev *vdev,
goto err;
}
vr->len = vr_size;
- vr->info = vr->va + vring_size(num, MIC_VIRTIO_RING_ALIGN);
+ vr->info = vr->va + round_up(vring_size(num, MIC_VIRTIO_RING_ALIGN), 4);
vr->info->magic = cpu_to_le32(MIC_MAGIC + vdev->virtio_id + i);
vr_addr = dma_map_single(&vpdev->dev, vr->va, vr_size,
DMA_BIDIRECTIONAL);
@@ -602,6 +602,7 @@ static int vop_virtio_copy_from_user(struct vop_vdev *vdev, void __user *ubuf,
size_t partlen;
bool dma = VOP_USE_DMA && vi->dma_ch;
int err = 0;
+ size_t offset = 0;
if (dma) {
dma_alignment = 1 << vi->dma_ch->device->copy_align;
@@ -655,13 +656,20 @@ memcpy:
* We are copying to IO below and should ideally use something
* like copy_from_user_toio(..) if it existed.
*/
- if (copy_from_user((void __force *)dbuf, ubuf, len)) {
- err = -EFAULT;
- dev_err(vop_dev(vdev), "%s %d err %d\n",
- __func__, __LINE__, err);
- goto err;
+ while (len) {
+ partlen = min_t(size_t, len, VOP_INT_DMA_BUF_SIZE);
+
+ if (copy_from_user(vvr->buf, ubuf + offset, partlen)) {
+ err = -EFAULT;
+ dev_err(vop_dev(vdev), "%s %d err %d\n",
+ __func__, __LINE__, err);
+ goto err;
+ }
+ memcpy_toio(dbuf + offset, vvr->buf, partlen);
+ offset += partlen;
+ vdev->out_bytes += partlen;
+ len -= partlen;
}
- vdev->out_bytes += len;
err = 0;
err:
vpdev->hw_ops->unmap(vpdev, dbuf);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-17 18:24:05 +0300