* Added the original files of the driver as a basis for comparison
Conflicts: kernel/include/hfi1/sdma.h kernel/sdma.c kernel/user_sdma.c
This commit is contained in:
Aram Santogidis
committed by
Balazs Gerofi
Balazs Gerofi
parent
4a0e389953
commit
14b360e867
128
kernel/include/hfi1/user_sdma.h
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128
kernel/include/hfi1/user_sdma.h
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/*
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* Copyright(c) 2015, 2016 Intel Corporation.
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*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* BSD LICENSE
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* - Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include <linux/device.h>
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#include <linux/wait.h>
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#include "common.h"
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#include "iowait.h"
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#include "user_exp_rcv.h"
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extern uint extended_psn;
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/*
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* Define fields in the KDETH header so we can update the header
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* template.
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*/
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#define KDETH_OFFSET_SHIFT 0
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#define KDETH_OFFSET_MASK 0x7fff
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#define KDETH_OM_SHIFT 15
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#define KDETH_OM_MASK 0x1
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#define KDETH_TID_SHIFT 16
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#define KDETH_TID_MASK 0x3ff
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#define KDETH_TIDCTRL_SHIFT 26
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#define KDETH_TIDCTRL_MASK 0x3
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#define KDETH_INTR_SHIFT 28
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#define KDETH_INTR_MASK 0x1
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#define KDETH_SH_SHIFT 29
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#define KDETH_SH_MASK 0x1
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#define KDETH_KVER_SHIFT 30
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#define KDETH_KVER_MASK 0x3
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#define KDETH_JKEY_SHIFT 0x0
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#define KDETH_JKEY_MASK 0xff
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#define KDETH_HCRC_UPPER_SHIFT 16
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#define KDETH_HCRC_UPPER_MASK 0xff
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#define KDETH_HCRC_LOWER_SHIFT 24
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#define KDETH_HCRC_LOWER_MASK 0xff
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#define AHG_KDETH_INTR_SHIFT 12
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#define AHG_KDETH_SH_SHIFT 13
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#define KDETH_GET(val, field) \
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(((le32_to_cpu((val))) >> KDETH_##field##_SHIFT) & KDETH_##field##_MASK)
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#define KDETH_SET(dw, field, val) do { \
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u32 dwval = le32_to_cpu(dw); \
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dwval &= ~(KDETH_##field##_MASK << KDETH_##field##_SHIFT); \
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dwval |= (((val) & KDETH_##field##_MASK) << \
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KDETH_##field##_SHIFT); \
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dw = cpu_to_le32(dwval); \
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} while (0)
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#define KDETH_RESET(dw, field, val) ({ dw = 0; KDETH_SET(dw, field, val); })
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/* KDETH OM multipliers and switch over point */
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#define KDETH_OM_SMALL 4
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#define KDETH_OM_LARGE 64
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#define KDETH_OM_MAX_SIZE (1 << ((KDETH_OM_LARGE / KDETH_OM_SMALL) + 1))
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struct hfi1_user_sdma_pkt_q {
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struct list_head list;
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unsigned ctxt;
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unsigned subctxt;
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u16 n_max_reqs;
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atomic_t n_reqs;
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u16 reqidx;
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struct hfi1_devdata *dd;
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struct kmem_cache *txreq_cache;
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struct user_sdma_request *reqs;
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unsigned long *req_in_use;
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struct iowait busy;
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unsigned state;
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wait_queue_head_t wait;
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unsigned long unpinned;
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struct mmu_rb_handler *handler;
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atomic_t n_locked;
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struct mm_struct *mm;
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};
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struct hfi1_user_sdma_comp_q {
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u16 nentries;
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struct hfi1_sdma_comp_entry *comps;
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};
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int hfi1_user_sdma_alloc_queues(struct hfi1_ctxtdata *, struct file *);
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int hfi1_user_sdma_free_queues(struct hfi1_filedata *);
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int hfi1_user_sdma_process_request(struct file *, struct iovec *, unsigned long,
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unsigned long *);
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