6cc1d135cd
COP2 disabled and lazily allocate COP2 context structure in exception
handler. Keep kernel and userland contexts separated.
63 lines
2.1 KiB
C
63 lines
2.1 KiB
C
/*-
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* Copyright (c) 2011, Oleksandr Tymoshenko <gonzo@FreeBSD.org>
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* All rights reserved.
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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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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <sys/systm.h>
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <vm/uma.h>
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#include <machine/octeon_cop2.h>
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static uma_zone_t ctxzone;
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static void
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octeon_cop2_init(void* dummy)
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{
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printf("Create COP2 context zone\n");
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ctxzone = uma_zcreate("COP2 context",
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sizeof(struct octeon_cop2_state),
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NULL, NULL, NULL, NULL, 8, 0);
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}
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struct octeon_cop2_state *
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octeon_cop2_alloc_ctx()
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{
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return uma_zalloc(ctxzone, M_NOWAIT);
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}
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void
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octeon_cop2_free_ctx(struct octeon_cop2_state *ctx)
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{
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uma_zfree(ctxzone, ctx);
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}
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SYSINIT(octeon_cop2, SI_SUB_CPU, SI_ORDER_FIRST, octeon_cop2_init, NULL);
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