diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/file_ops.c | 4 | ||||
| -rw-r--r-- | drivers/infiniband/hw/hfi1/user_exp_rcv.c | 16 |
2 files changed, 11 insertions, 9 deletions
diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c index 302f0cdd8119..4f39bffad74a 100644 --- a/drivers/infiniband/hw/hfi1/file_ops.c +++ b/drivers/infiniband/hw/hfi1/file_ops.c @@ -1132,6 +1132,10 @@ static int get_ctxt_info(struct file *fp, void __user *ubase, __u32 len) HFI1_CAP_MISC_MASK) << HFI1_CAP_USER_SHIFT) | HFI1_CAP_UGET_MASK(uctxt->flags, MASK) | HFI1_CAP_KGET_MASK(uctxt->flags, K2U); + /* adjust flag if this fd is not able to cache */ + if (!fd->handler) + cinfo.runtime_flags |= HFI1_CAP_TID_UNMAP; /* no caching */ + cinfo.num_active = hfi1_count_active_units(); cinfo.unit = uctxt->dd->unit; cinfo.ctxt = uctxt->ctxt; diff --git a/drivers/infiniband/hw/hfi1/user_exp_rcv.c b/drivers/infiniband/hw/hfi1/user_exp_rcv.c index 269a948189e0..9b740db34963 100644 --- a/drivers/infiniband/hw/hfi1/user_exp_rcv.c +++ b/drivers/infiniband/hw/hfi1/user_exp_rcv.c @@ -196,7 +196,7 @@ int hfi1_user_exp_rcv_init(struct file *fp) if (!fd->entry_to_rb) return -ENOMEM; - if (!HFI1_CAP_IS_USET(TID_UNMAP)) { + if (!HFI1_CAP_UGET_MASK(uctxt->flags, TID_UNMAP)) { fd->invalid_tid_idx = 0; fd->invalid_tids = kzalloc(uctxt->expected_count * sizeof(u32), GFP_KERNEL); @@ -207,15 +207,13 @@ int hfi1_user_exp_rcv_init(struct file *fp) /* * Register MMU notifier callbacks. If the registration - * fails, continue but turn off the TID caching for - * all user contexts. + * fails, continue without TID caching for this context. */ ret = hfi1_mmu_rb_register(fd, fd->mm, &tid_rb_ops, &fd->handler); if (ret) { dd_dev_info(dd, "Failed MMU notifier registration %d\n", ret); - HFI1_CAP_USET(TID_UNMAP); ret = 0; } } @@ -234,7 +232,7 @@ int hfi1_user_exp_rcv_init(struct file *fp) * init. */ spin_lock(&fd->tid_lock); - if (uctxt->subctxt_cnt && !HFI1_CAP_IS_USET(TID_UNMAP)) { + if (uctxt->subctxt_cnt && fd->handler) { u16 remainder; fd->tid_limit = uctxt->expected_count / uctxt->subctxt_cnt; @@ -260,7 +258,7 @@ int hfi1_user_exp_rcv_free(struct hfi1_filedata *fd) * The notifier would have been removed when the process'es mm * was freed. */ - if (!HFI1_CAP_IS_USET(TID_UNMAP)) + if (fd->handler) hfi1_mmu_rb_unregister(fd->handler); kfree(fd->invalid_tids); @@ -857,7 +855,7 @@ static int set_rcvarray_entry(struct file *fp, unsigned long vaddr, node->freed = false; memcpy(node->pages, pages, sizeof(struct page *) * npages); - if (HFI1_CAP_IS_USET(TID_UNMAP)) + if (!fd->handler) ret = tid_rb_insert(fd, &node->mmu); else ret = hfi1_mmu_rb_insert(fd->handler, &node->mmu); @@ -900,7 +898,7 @@ static int unprogram_rcvarray(struct file *fp, u32 tidinfo, node = fd->entry_to_rb[rcventry]; if (!node || node->rcventry != (uctxt->expected_base + rcventry)) return -EBADF; - if (HFI1_CAP_IS_USET(TID_UNMAP)) + if (!fd->handler) tid_rb_remove(fd, &node->mmu, fd->mm); else hfi1_mmu_rb_remove(fd->handler, &node->mmu); @@ -963,7 +961,7 @@ static void unlock_exp_tids(struct hfi1_ctxtdata *uctxt, uctxt->expected_base]; if (!node || node->rcventry != rcventry) continue; - if (HFI1_CAP_IS_USET(TID_UNMAP)) + if (!fd->handler) tid_rb_remove(fd, &node->mmu, fd->mm); else hfi1_mmu_rb_remove(fd->handler, |