mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-21 18:27:22 +00:00
fdafd315ad
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
158 lines
5 KiB
C
158 lines
5 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (c) 2018 Justin Hibbits
|
|
* 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 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/param.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
|
|
#include <machine/bus.h>
|
|
|
|
#include <dev/ofw/ofw_bus.h>
|
|
#include <dev/ofw/ofw_bus_subr.h>
|
|
|
|
/*
|
|
* From the P1022 manual, sequence for writing to L2CTL is:
|
|
* - mbar
|
|
* - isync
|
|
* - write
|
|
* - read
|
|
* - mbar
|
|
*/
|
|
#define L2_CTL 0x0
|
|
#define L2CTL_L2E 0x80000000
|
|
#define L2CTL_L2I 0x40000000
|
|
struct mpc85xx_cache_softc {
|
|
struct resource *sc_mem;
|
|
};
|
|
|
|
static struct ofw_compat_data compats[] = {
|
|
{"fsl,8540-l2-cache-controller", 1},
|
|
{"fsl,8541-l2-cache-controller", 1},
|
|
{"fsl,8544-l2-cache-controller", 1},
|
|
{"fsl,8548-l2-cache-controller", 1},
|
|
{"fsl,8555-l2-cache-controller", 1},
|
|
{"fsl,8568-l2-cache-controller", 1},
|
|
{"fsl,b4420-l2-cache-controller", 1},
|
|
{"fsl,b4860-l2-cache-controller", 1},
|
|
{"fsl,bsc9131-l2-cache-controller", 1},
|
|
{"fsl,bsc9132-l2-cache-controller", 1},
|
|
{"fsl,c293-l2-cache-controller", 1},
|
|
{"fsl,mpc8536-l2-cache-controller", 1},
|
|
{"fsl,mpc8540-l2-cache-controller", 1},
|
|
{"fsl,mpc8541-l2-cache-controller", 1},
|
|
{"fsl,mpc8544-l2-cache-controller", 1},
|
|
{"fsl,mpc8548-l2-cache-controller", 1},
|
|
{"fsl,mpc8555-l2-cache-controller", 1},
|
|
{"fsl,mpc8560-l2-cache-controller", 1},
|
|
{"fsl,mpc8568-l2-cache-controller", 1},
|
|
{"fsl,mpc8569-l2-cache-controller", 1},
|
|
{"fsl,mpc8572-l2-cache-controller", 1},
|
|
{"fsl,p1010-l2-cache-controller", 1},
|
|
{"fsl,p1011-l2-cache-controller", 1},
|
|
{"fsl,p1012-l2-cache-controller", 1},
|
|
{"fsl,p1013-l2-cache-controller", 1},
|
|
{"fsl,p1014-l2-cache-controller", 1},
|
|
{"fsl,p1015-l2-cache-controller", 1},
|
|
{"fsl,p1016-l2-cache-controller", 1},
|
|
{"fsl,p1020-l2-cache-controller", 1},
|
|
{"fsl,p1021-l2-cache-controller", 1},
|
|
{"fsl,p1022-l2-cache-controller", 1},
|
|
{"fsl,p1023-l2-cache-controller", 1},
|
|
{"fsl,p1024-l2-cache-controller", 1},
|
|
{"fsl,p1025-l2-cache-controller", 1},
|
|
{"fsl,p2010-l2-cache-controller", 1},
|
|
{"fsl,p2020-l2-cache-controller", 1},
|
|
{"fsl,t2080-l2-cache-controller", 1},
|
|
{"fsl,t4240-l2-cache-controller", 1},
|
|
{0, 0}
|
|
};
|
|
|
|
static int
|
|
mpc85xx_cache_probe(device_t dev)
|
|
{
|
|
|
|
if (ofw_bus_search_compatible(dev, compats)->ocd_str == NULL)
|
|
return (ENXIO);
|
|
|
|
device_set_desc(dev, "MPC85xx L2 cache");
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
mpc85xx_cache_attach(device_t dev)
|
|
{
|
|
struct mpc85xx_cache_softc *sc = device_get_softc(dev);
|
|
int rid;
|
|
int cache_line_size, cache_size;
|
|
|
|
/* Map registers. */
|
|
rid = 0;
|
|
sc->sc_mem = bus_alloc_resource_any(dev,
|
|
SYS_RES_MEMORY, &rid, RF_ACTIVE);
|
|
if (sc->sc_mem == NULL)
|
|
return (ENOMEM);
|
|
|
|
/* Enable cache and flash invalidate. */
|
|
__asm __volatile ("mbar; isync" ::: "memory");
|
|
bus_write_4(sc->sc_mem, L2_CTL, L2CTL_L2E | L2CTL_L2I);
|
|
bus_read_4(sc->sc_mem, L2_CTL);
|
|
__asm __volatile ("mbar" ::: "memory");
|
|
|
|
cache_line_size = 0;
|
|
cache_size = 0;
|
|
OF_getencprop(ofw_bus_get_node(dev), "cache-size", &cache_size,
|
|
sizeof(cache_size));
|
|
OF_getencprop(ofw_bus_get_node(dev), "cache-line-size",
|
|
&cache_line_size, sizeof(cache_line_size));
|
|
|
|
if (cache_line_size != 0 && cache_size != 0)
|
|
device_printf(dev,
|
|
"L2 cache size: %dKB, cache line size: %d bytes\n",
|
|
cache_size / 1024, cache_line_size);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t mpc85xx_cache_methods[] = {
|
|
/* device methods */
|
|
DEVMETHOD(device_probe, mpc85xx_cache_probe),
|
|
DEVMETHOD(device_attach, mpc85xx_cache_attach),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static driver_t mpc85xx_cache_driver = {
|
|
"cache",
|
|
mpc85xx_cache_methods,
|
|
sizeof(struct mpc85xx_cache_softc),
|
|
};
|
|
|
|
EARLY_DRIVER_MODULE(mpc85xx_cache, simplebus, mpc85xx_cache_driver, NULL, NULL,
|
|
BUS_PASS_RESOURCE + BUS_PASS_ORDER_MIDDLE);
|