projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 77241056 MM |
1 | /* |
| 2 | * | |
| 3 | * This file is provided under a dual BSD/GPLv2 license. When using or | |
| 4 | * redistributing this file, you may do so under either license. | |
| 5 | * | |
| 6 | * GPL LICENSE SUMMARY | |
| 7 | * | |
| 8 | * Copyright(c) 2015 Intel Corporation. | |
| 9 | * | |
| 10 | * This program is free software; you can redistribute it and/or modify | |
| 11 | * it under the terms of version 2 of the GNU General Public License as | |
| 12 | * published by the Free Software Foundation. | |
| 13 | * | |
| 14 | * This program is distributed in the hope that it will be useful, but | |
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 17 | * General Public License for more details. | |
| 18 | * | |
| 19 | * BSD LICENSE | |
| 20 | * | |
| 21 | * Copyright(c) 2015 Intel Corporation. | |
| 22 | * | |
| 23 | * Redistribution and use in source and binary forms, with or without | |
| 24 | * modification, are permitted provided that the following conditions | |
| 25 | * are met: | |
| 26 | * | |
| 27 | * - Redistributions of source code must retain the above copyright | |
| 28 | * notice, this list of conditions and the following disclaimer. | |
| 29 | * - Redistributions in binary form must reproduce the above copyright | |
| 30 | * notice, this list of conditions and the following disclaimer in | |
| 31 | * the documentation and/or other materials provided with the | |
| 32 | * distribution. | |
| 33 | * - Neither the name of Intel Corporation nor the names of its | |
| 34 | * contributors may be used to endorse or promote products derived | |
| 35 | * from this software without specific prior written permission. | |
| 36 | * | |
| 37 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 38 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 39 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 40 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 41 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 42 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 43 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 44 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 45 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 46 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 47 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 48 | * | |
| 49 | */ | |
| 50 | #include <linux/device.h> | |
| 51 | #include <linux/wait.h> | |
| 52 | ||
| 53 | #include "common.h" | |
| 54 | #include "iowait.h" | |
| 55 | ||
| 56 | #define EXP_TID_TIDLEN_MASK 0x7FFULL | |
| 57 | #define EXP_TID_TIDLEN_SHIFT 0 | |
| 58 | #define EXP_TID_TIDCTRL_MASK 0x3ULL | |
| 59 | #define EXP_TID_TIDCTRL_SHIFT 20 | |
| 60 | #define EXP_TID_TIDIDX_MASK 0x7FFULL | |
| 61 | #define EXP_TID_TIDIDX_SHIFT 22 | |
| 62 | #define EXP_TID_GET(tid, field) \ | |
| 63 | (((tid) >> EXP_TID_TID##field##_SHIFT) & EXP_TID_TID##field##_MASK) | |
| 64 | ||
| 65 | extern uint extended_psn; | |
| 66 | ||
| 67 | struct hfi1_user_sdma_pkt_q { | |
| 68 | struct list_head list; | |
| 69 | unsigned ctxt; | |
| 70 | unsigned subctxt; | |
| 71 | u16 n_max_reqs; | |
| 72 | atomic_t n_reqs; | |
| 73 | u16 reqidx; | |
| 74 | struct hfi1_devdata *dd; | |
| 75 | struct kmem_cache *txreq_cache; | |
| 76 | struct user_sdma_request *reqs; | |
| 77 | struct iowait busy; | |
| 78 | unsigned state; | |
| 79 | }; | |
| 80 | ||
| 81 | struct hfi1_user_sdma_comp_q { | |
| 82 | u16 nentries; | |
| 83 | struct hfi1_sdma_comp_entry *comps; | |
| 84 | }; | |
| 85 | ||
| 86 | int hfi1_user_sdma_alloc_queues(struct hfi1_ctxtdata *, struct file *); | |
| 87 | int hfi1_user_sdma_free_queues(struct hfi1_filedata *); | |
| 88 | int hfi1_user_sdma_process_request(struct file *, struct iovec *, unsigned long, | |
| 89 | unsigned long *); |