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-rw-r--r--drivers/remoteproc/remoteproc_core.c12
-rw-r--r--drivers/remoteproc/remoteproc_virtio.c2
-rw-r--r--include/linux/remoteproc.h9
3 files changed, 10 insertions, 13 deletions
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index ca02f12..9be5dad 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -298,14 +298,15 @@ __rproc_handle_vring(struct rproc_vdev *rvdev, struct fw_rsc_vdev *rsc, int i)
return -EINVAL;
}
- /* the firmware must provide the expected queue size */
- if (!vring->num) {
- dev_err(dev, "invalid qsz (%d)\n", vring->num);
+ /* verify queue size and vring alignment are sane */
+ if (!vring->num || !vring->align) {
+ dev_err(dev, "invalid qsz (%d) or alignment (%d)\n",
+ vring->num, vring->align);
return -EINVAL;
}
/* actual size of vring (in bytes) */
- size = PAGE_ALIGN(vring_size(vring->num, AMP_VRING_ALIGN));
+ size = PAGE_ALIGN(vring_size(vring->num, vring->align));
if (!idr_pre_get(&rproc->notifyids, GFP_KERNEL)) {
dev_err(dev, "idr_pre_get failed\n");
@@ -340,6 +341,7 @@ __rproc_handle_vring(struct rproc_vdev *rvdev, struct fw_rsc_vdev *rsc, int i)
dma, size, notifyid);
rvdev->vring[i].len = vring->num;
+ rvdev->vring[i].align = vring->align;
rvdev->vring[i].va = va;
rvdev->vring[i].dma = dma;
rvdev->vring[i].notifyid = notifyid;
@@ -354,7 +356,7 @@ static void __rproc_free_vrings(struct rproc_vdev *rvdev, int i)
for (i--; i > 0; i--) {
struct rproc_vring *rvring = &rvdev->vring[i];
- int size = PAGE_ALIGN(vring_size(rvring->len, AMP_VRING_ALIGN));
+ int size = PAGE_ALIGN(vring_size(rvring->len, rvring->align));
dma_free_coherent(rproc->dev, size, rvring->va, rvring->dma);
idr_remove(&rproc->notifyids, rvring->notifyid);
diff --git a/drivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c
index 0700410..ecf6121 100644
--- a/drivers/remoteproc/remoteproc_virtio.c
+++ b/drivers/remoteproc/remoteproc_virtio.c
@@ -99,7 +99,7 @@ static struct virtqueue *rp_find_vq(struct virtio_device *vdev,
* Create the new vq, and tell virtio we're not interested in
* the 'weak' smp barriers, since we're talking with a real device.
*/
- vq = vring_new_virtqueue(len, AMP_VRING_ALIGN, vdev, false, addr,
+ vq = vring_new_virtqueue(len, rvring->align, vdev, false, addr,
rproc_virtio_notify, callback, name);
if (!vq) {
dev_err(rproc->dev, "vring_new_virtqueue %s failed\n", name);
diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h
index 7750d8a..f1ffabb 100644
--- a/include/linux/remoteproc.h
+++ b/include/linux/remoteproc.h
@@ -43,13 +43,6 @@
#include <linux/completion.h>
#include <linux/idr.h>
-/*
- * The alignment between the consumer and producer parts of the vring.
- * Note: this is part of the "wire" protocol. If you change this, you need
- * to update your peers too.
- */
-#define AMP_VRING_ALIGN (4096)
-
/**
* struct resource_table - firmware resource table header
* @ver: version number
@@ -423,6 +416,7 @@ struct rproc {
* @dma: dma address
* @len: length, in bytes
* @da: device address
+ * @align: vring alignment
* @notifyid: rproc-specific unique vring index
* @rvdev: remote vdev
* @vq: the virtqueue of this vring
@@ -432,6 +426,7 @@ struct rproc_vring {
dma_addr_t dma;
int len;
u32 da;
+ u32 align;
int notifyid;
struct rproc_vdev *rvdev;
struct virtqueue *vq;
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