e2e050c8ef
This allows replacing "sys/eventfilter.h" includes with "sys/_eventfilter.h"
in other header files (e.g., sys/{bus,conf,cpu}.h) and reduces header
pollution substantially.
EVENTHANDLER_DECLARE and EVENTHANDLER_LIST_DECLAREs were moved out of .c
files into appropriate headers (e.g., sys/proc.h, powernv/opal.h).
As a side effect of reduced header pollution, many .c files and headers no
longer contain needed definitions. The remainder of the patch addresses
adding appropriate includes to fix those files.
LOCK_DEBUG and LOCK_FILE_LINE_ARG are moved to sys/_lock.h, as required by
sys/mutex.h since r326106 (but silently protected by header pollution prior
to this change).
No functional change (intended). Of course, any out of tree modules that
relied on header pollution for sys/eventhandler.h, sys/lock.h, or
sys/mutex.h inclusion need to be fixed. __FreeBSD_version has been bumped.
107 lines
3.0 KiB
C
107 lines
3.0 KiB
C
/*-
|
|
* Copyright (c) 2017-2019 Ruslan Bukin <br@bsdpad.com>
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by SRI International and the University of
|
|
* Cambridge Computer Laboratory under DARPA/AFRL contract FA8750-10-C-0237
|
|
* ("CTSRD"), as part of the DARPA CRASH research programme.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "opt_platform.h"
|
|
#include <sys/param.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/lock.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/mutex.h>
|
|
|
|
#include <machine/bus.h>
|
|
|
|
#include <dev/xdma/xdma.h>
|
|
|
|
int
|
|
xdma_dequeue_bio(xdma_channel_t *xchan, struct bio **bp,
|
|
xdma_transfer_status_t *status)
|
|
{
|
|
struct xdma_request *xr_tmp;
|
|
struct xdma_request *xr;
|
|
|
|
QUEUE_OUT_LOCK(xchan);
|
|
TAILQ_FOREACH_SAFE(xr, &xchan->queue_out, xr_next, xr_tmp) {
|
|
TAILQ_REMOVE(&xchan->queue_out, xr, xr_next);
|
|
break;
|
|
}
|
|
QUEUE_OUT_UNLOCK(xchan);
|
|
|
|
if (xr == NULL)
|
|
return (-1);
|
|
|
|
*bp = xr->bp;
|
|
|
|
status->error = xr->status.error;
|
|
status->transferred = xr->status.transferred;
|
|
|
|
xchan_bank_put(xchan, xr);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
xdma_enqueue_bio(xdma_channel_t *xchan, struct bio **bp,
|
|
bus_addr_t addr, uint8_t src_width, uint8_t dst_width,
|
|
enum xdma_direction dir)
|
|
{
|
|
struct xdma_request *xr;
|
|
xdma_controller_t *xdma;
|
|
|
|
xdma = xchan->xdma;
|
|
|
|
xr = xchan_bank_get(xchan);
|
|
if (xr == NULL)
|
|
return (-1); /* No space is available yet. */
|
|
|
|
xr->direction = dir;
|
|
xr->bp = *bp;
|
|
xr->req_type = XR_TYPE_BIO;
|
|
xr->src_width = src_width;
|
|
xr->dst_width = dst_width;
|
|
if (dir == XDMA_MEM_TO_DEV) {
|
|
xr->dst_addr = addr;
|
|
xr->src_addr = 0;
|
|
} else {
|
|
xr->dst_addr = 0;
|
|
xr->src_addr = addr;
|
|
}
|
|
|
|
QUEUE_IN_LOCK(xchan);
|
|
TAILQ_INSERT_TAIL(&xchan->queue_in, xr, xr_next);
|
|
QUEUE_IN_UNLOCK(xchan);
|
|
|
|
return (0);
|
|
}
|