diff options
Diffstat (limited to 'drivers/misc/habanalabs/command_buffer.c')
| -rw-r--r-- | drivers/misc/habanalabs/command_buffer.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/misc/habanalabs/command_buffer.c b/drivers/misc/habanalabs/command_buffer.c index 28e359731fb8..85f75806a9a7 100644 --- a/drivers/misc/habanalabs/command_buffer.c +++ b/drivers/misc/habanalabs/command_buffer.c @@ -236,11 +236,14 @@ int hl_cb_ioctl(struct hl_fpriv *hpriv, void *data) static void cb_vm_close(struct vm_area_struct *vma) { struct hl_cb *cb = (struct hl_cb *) vma->vm_private_data; + long new_mmap_size; - cb->mmap_size -= vma->vm_end - vma->vm_start; + new_mmap_size = cb->mmap_size - (vma->vm_end - vma->vm_start); - if (cb->mmap_size) + if (new_mmap_size > 0) { + cb->mmap_size = new_mmap_size; return; + } spin_lock(&cb->lock); cb->mmap = false; @@ -273,7 +276,7 @@ int hl_cb_mmap(struct hl_fpriv *hpriv, struct vm_area_struct *vma) } /* Validation check */ - if ((vma->vm_end - vma->vm_start) != cb->size) { + if ((vma->vm_end - vma->vm_start) != ALIGN(cb->size, PAGE_SIZE)) { dev_err(hdev->dev, "CB mmap failed, mmap size 0x%lx != 0x%x cb size\n", vma->vm_end - vma->vm_start, cb->size); |