HardenedBSD/sys/arm/ti/omap4/omap4_l2cache.c
Warner Losh fdafd315ad sys: Automated cleanup of cdefs and other formatting
Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by:		Netflix
2023-11-26 22:24:00 -07:00

90 lines
2.6 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2012 Olivier Houchard. All rights reserved.
*
* 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 ``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 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/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <machine/bus.h>
#include <machine/pl310.h>
#include <machine/platformvar.h>
#include <arm/ti/ti_smc.h>
#include <arm/ti/omap4/omap4_machdep.h>
#include <arm/ti/omap4/omap4_smc.h>
#include "platform_pl310_if.h"
void
omap4_pl310_init(platform_t plat, struct pl310_softc *sc)
{
uint32_t aux, prefetch;
aux = pl310_read4(sc, PL310_AUX_CTRL);
prefetch = pl310_read4(sc, PL310_PREFETCH_CTRL);
/*
* Disable instruction prefetch
*/
prefetch &= ~PREFETCH_CTRL_INSTR_PREFETCH;
aux &= ~AUX_CTRL_INSTR_PREFETCH;
// prefetch &= ~PREFETCH_CTRL_DATA_PREFETCH;
// aux &= ~AUX_CTRL_DATA_PREFETCH;
/*
* Make sure data prefetch is on
*/
prefetch |= PREFETCH_CTRL_DATA_PREFETCH;
aux |= AUX_CTRL_DATA_PREFETCH;
/*
* TODO: add tunable for prefetch offset
* and experiment with performance
*/
ti_smc0(aux, 0, WRITE_AUXCTRL_REG);
ti_smc0(prefetch, 0, WRITE_PREFETCH_CTRL_REG);
}
void
omap4_pl310_write_ctrl(platform_t plat, struct pl310_softc *sc, uint32_t val)
{
ti_smc0(val, 0, L2CACHE_WRITE_CTRL_REG);
}
void
omap4_pl310_write_debug(platform_t plat, struct pl310_softc *sc, uint32_t val)
{
ti_smc0(val, 0, L2CACHE_WRITE_DEBUG_REG);
}