mem.c
Split out ioctl handler a little more cleanly, add memory range attribute handling for both kernel and user-space consumers. pmap.c Remove obsolete P6 MTRR-related code. i686_mem.c Map generic memory-range attribute interface to the P6 MTRR model.
This commit is contained in:
msmith
parent
d5bcd921f5
commit
5b395b16b7
554
sys/amd64/amd64/amd64_mem.c
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554
sys/amd64/amd64/amd64_mem.c
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@ -0,0 +1,554 @@
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/*-
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* Copyright (c) 1999 Michael Smith <msmith@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, this list of conditions and the following 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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* $Id$
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*/
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#include "opt_smp.h"
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/ioccom.h>
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#include <sys/malloc.h>
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#include <sys/memrange.h>
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#include <machine/md_var.h>
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#include <machine/specialreg.h>
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/*
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* i686 memory range operations
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*
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* This code will probably be impenetrable without reference to the
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* Intel Pentium Pro documentation.
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*/
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static char *mem_owner_bios = "BIOS";
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#define MR686_FIXMTRR (1<<0)
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#define mrwithin(mr, a) \
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(((a) >= (mr)->mr_base) && ((a) < ((mr)->mr_base + (mr)->mr_len)))
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#define mroverlap(mra, mrb) \
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(mrwithin(mra, mrb->mr_base) || mrwithin(mrb, mra->mr_base))
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#define mrvalid(base, len) \
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((!(base & ((1 << 12) - 1))) && /* base is multiple of 4k */ \
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((len) >= (1 << 12)) && /* length is >= 4k */ \
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powerof2((len)) && /* ... and power of two */ \
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!((base) & ((len) - 1))) /* range is not discontiuous */
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#define mrcopyflags(curr, new) (((curr) & ~MDF_ATTRMASK) | ((new) & MDF_ATTRMASK))
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static void i686_mrinit(struct mem_range_softc *);
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static int i686_mrset(struct mem_range_softc *,
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struct mem_range_desc *,
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int *);
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static struct mem_range_ops i686_mrops = {
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i686_mrinit,
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i686_mrset
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};
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static struct mem_range_desc *mem_range_match(struct mem_range_softc *sc,
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struct mem_range_desc *mrd);
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static void i686_mrfetch(struct mem_range_softc *sc);
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static int i686_mtrrtype(int flags);
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static int i686_mrstore(struct mem_range_softc *sc);
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static struct mem_range_desc *i686_mtrrfixsearch(struct mem_range_softc *sc,
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u_int64_t addr);
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static int i686_mrsetlow(struct mem_range_softc *sc,
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struct mem_range_desc *mrd,
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int *arg);
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static int i686_mrsetvariable(struct mem_range_softc *sc,
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struct mem_range_desc *mrd,
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int *arg);
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/* i686 MTRR type to memory range type conversion */
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static int i686_mtrrtomrt[] = {
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MDF_UNCACHEABLE,
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MDF_WRITECOMBINE,
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0,
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0,
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MDF_WRITETHROUGH,
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MDF_WRITEPROTECT,
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MDF_WRITEBACK
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};
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/* MTRR type to text conversion */
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static char *i686_mtrrtotext[] = {
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"uncacheable",
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"write-combine",
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"invalid",
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"invalid",
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"write-through"
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"write-protect",
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"write-back"
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};
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/*
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* Look for an exactly-matching range.
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*/
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static struct mem_range_desc *
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mem_range_match(struct mem_range_softc *sc, struct mem_range_desc *mrd)
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{
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struct mem_range_desc *cand;
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int i;
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for (i = 0, cand = sc->mr_desc; i < sc->mr_ndesc; i++, cand++)
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if ((cand->mr_base == mrd->mr_base) &&
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(cand->mr_len == mrd->mr_len))
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return(cand);
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return(NULL);
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}
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/*
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* Fetch the current mtrr settings from the current CPU (assumed to all
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* be in sync in the SMP case). Note that if we are here, we assume
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* that MTRRs are enabled, and we may or may not have fixed MTRRs.
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*/
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static void
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i686_mrfetch(struct mem_range_softc *sc)
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{
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struct mem_range_desc *mrd;
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u_int64_t msrv;
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int i, j, msr;
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mrd = sc->mr_desc;
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/* Get fixed-range MTRRs */
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if (sc->mr_cap & MR686_FIXMTRR) {
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msr = MSR_MTRR64kBase;
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for (i = 0; i < (MTRR_N64K / 8); i++, msr++) {
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msrv = rdmsr(msr);
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for (j = 0; j < 8; j++, mrd++) {
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mrd->mr_flags = (mrd->mr_flags & ~MDF_ATTRMASK) |
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i686_mtrrtomrt[msrv & 0xff] |
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MDF_ACTIVE;
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if (mrd->mr_owner[0] == 0)
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strcpy(mrd->mr_owner, mem_owner_bios);
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msrv = msrv >> 8;
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}
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}
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msr = MSR_MTRR16kBase;
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for (i = 0; i < (MTRR_N16K / 8); i++, msr++) {
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msrv = rdmsr(msr);
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for (j = 0; j < 8; j++, mrd++) {
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mrd->mr_flags = (mrd->mr_flags & ~MDF_ATTRMASK) |
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i686_mtrrtomrt[msrv & 0xff] |
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MDF_ACTIVE;
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if (mrd->mr_owner[0] == 0)
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strcpy(mrd->mr_owner, mem_owner_bios);
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msrv = msrv >> 8;
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}
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}
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msr = MSR_MTRR4kBase;
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for (i = 0; i < (MTRR_N4K / 8); i++, msr++) {
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msrv = rdmsr(msr);
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for (j = 0; j < 8; j++, mrd++) {
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mrd->mr_flags = (mrd->mr_flags & ~MDF_ATTRMASK) |
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i686_mtrrtomrt[msrv & 0xff] |
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MDF_ACTIVE;
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if (mrd->mr_owner[0] == 0)
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strcpy(mrd->mr_owner, mem_owner_bios);
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msrv = msrv >> 8;
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}
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}
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}
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/* Get remainder which must be variable MTRRs */
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msr = MSR_MTRRVarBase;
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for (; (mrd - sc->mr_desc) < sc->mr_ndesc; msr += 2, mrd++) {
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msrv = rdmsr(msr);
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mrd->mr_flags = (mrd->mr_flags & ~MDF_ATTRMASK) |
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i686_mtrrtomrt[msrv & 0xff];
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mrd->mr_base = msrv & 0x0000000ffffff000LL;
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msrv = rdmsr(msr + 1);
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mrd->mr_flags = (msrv & 0x800) ?
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(mrd->mr_flags | MDF_ACTIVE) :
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(mrd->mr_flags & ~MDF_ACTIVE);
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/* Compute the range from the mask. Ick. */
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mrd->mr_len = (~(msrv & 0x0000000ffffff000LL) & 0x0000000fffffffffLL) + 1;
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if (!mrvalid(mrd->mr_base, mrd->mr_len))
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mrd->mr_flags |= MDF_BOGUS;
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/* If unclaimed and active, must be the BIOS */
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if ((mrd->mr_flags & MDF_ACTIVE) && (mrd->mr_owner[0] == 0))
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strcpy(mrd->mr_owner, mem_owner_bios);
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}
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}
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/*
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* Return the MTRR memory type matching a region's flags
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*/
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static int
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i686_mtrrtype(int flags)
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{
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int i;
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flags &= MDF_ATTRMASK;
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for (i = 0; i < (sizeof(i686_mtrrtomrt) / sizeof(i686_mtrrtomrt[0])); i++) {
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if (i686_mtrrtomrt[i] == 0)
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continue;
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if (flags == i686_mtrrtomrt[i])
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return(i);
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}
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return(-1);
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}
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/*
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* Update the current CPU's MTRRs with those represented in the
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* descriptor list.
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*/
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static int
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i686_mrstore(struct mem_range_softc *sc)
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{
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struct mem_range_desc *mrd;
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u_int64_t msrv;
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int i, j, msr;
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u_int cr4save;
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#ifdef SMP
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/*
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* We should use all_but_self_ipi() to call other CPUs into a
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* locking gate, then call a target function to do this work.
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* The "proper" solution involves a generalised locking gate
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* implementation, not ready yet.
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*/
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return(EOPNOTSUPP);
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#endif
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disable_intr(); /* disable interrupts */
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cr4save = rcr4(); /* save cr4 */
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if (cr4save & CR4_PGE)
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load_cr4(cr4save & ~CR4_PGE);
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load_cr0((rcr0() & ~CR0_NW) | CR0_CD); /* disable caches (CD = 1, NW = 0) */
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wbinvd(); /* flush caches */
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invltlb(); /* flush TLBs */
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wrmsr(MSR_MTRRdefType, rdmsr(MSR_MTRRdefType) & ~0x800); /* disable MTRRs (E = 0) */
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mrd = sc->mr_desc;
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/* Set fixed-range MTRRs */
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if (sc->mr_cap & MR686_FIXMTRR) {
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msr = MSR_MTRR64kBase;
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for (i = 0; i < (MTRR_N64K / 8); i++, msr++) {
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msrv = 0;
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for (j = 7; j >= 0; j--) {
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msrv = msrv << 8;
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msrv |= (i686_mtrrtype((mrd + j)->mr_flags) & 0xff);
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}
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wrmsr(msr, msrv);
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mrd += 8;
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}
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msr = MSR_MTRR16kBase;
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for (i = 0; i < (MTRR_N16K / 8); i++, msr++) {
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msrv = 0;
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for (j = 7; j >= 0; j--) {
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msrv = msrv << 8;
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msrv |= (i686_mtrrtype((mrd + j)->mr_flags) & 0xff);
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}
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wrmsr(msr, msrv);
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mrd += 8;
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}
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msr = MSR_MTRR4kBase;
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for (i = 0; i < (MTRR_N4K / 8); i++, msr++) {
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msrv = 0;
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for (j = 7; j >= 0; j--) {
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msrv = msrv << 8;
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msrv |= (i686_mtrrtype((mrd + j)->mr_flags) & 0xff);
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}
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wrmsr(msr, msrv);
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mrd += 8;
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}
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}
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/* Set remainder which must be variable MTRRs */
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msr = MSR_MTRRVarBase;
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for (; (mrd - sc->mr_desc) < sc->mr_ndesc; msr += 2, mrd++) {
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/* base/type register */
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if (mrd->mr_flags & MDF_ACTIVE) {
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msrv = mrd->mr_base & 0x0000000ffffff000LL;
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msrv |= (i686_mtrrtype(mrd->mr_flags) & 0xff);
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} else {
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msrv = 0;
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}
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wrmsr(msr, msrv);
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/* mask/active register */
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if (mrd->mr_flags & MDF_ACTIVE) {
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msrv = 0x800 | (~(mrd->mr_len - 1) & 0x0000000ffffff000LL);
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} else {
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msrv = 0;
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}
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wrmsr(msr + 1, msrv);
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}
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wbinvd(); /* flush caches */
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invltlb(); /* flush TLB */
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wrmsr(MSR_MTRRdefType, rdmsr(MSR_MTRRdefType) | 0x800); /* restore MTRR state */
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load_cr0(rcr0() & ~(CR0_CD | CR0_NW)); /* enable caches CD = 0 and NW = 0 */
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load_cr4(cr4save); /* restore cr4 */
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enable_intr(); /* enable interrupts */
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return(0);
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}
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/*
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* Hunt for the fixed MTRR referencing (addr)
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*/
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static struct mem_range_desc *
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i686_mtrrfixsearch(struct mem_range_softc *sc, u_int64_t addr)
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{
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struct mem_range_desc *mrd;
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int i;
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for (i = 0, mrd = sc->mr_desc; i < (MTRR_N64K + MTRR_N16K + MTRR_N4K); i++, mrd++)
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if ((addr >= mrd->mr_base) && (addr < (mrd->mr_base + mrd->mr_len)))
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return(mrd);
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return(NULL);
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}
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/*
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* Try to satisfy the given range request by manipulating the fixed MTRRs that
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* cover low memory.
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*
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* Note that we try to be generous here; we'll bloat the range out to the
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* next higher/lower boundary to avoid the consumer having to know too much
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* about the mechanisms here.
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*
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* XXX note that this will have to be updated when we start supporting "busy" ranges.
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*/
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static int
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i686_mrsetlow(struct mem_range_softc *sc, struct mem_range_desc *mrd, int *arg)
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{
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struct mem_range_desc *first_md, *last_md, *curr_md;
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/* range check */
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if (((first_md = i686_mtrrfixsearch(sc, mrd->mr_base)) == NULL) ||
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((last_md = i686_mtrrfixsearch(sc, mrd->mr_base + mrd->mr_len - 1)) == NULL))
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return(EINVAL);
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/* set flags, clear set-by-firmware flag */
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for (curr_md = first_md; curr_md <= last_md; curr_md++) {
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curr_md->mr_flags = mrcopyflags(curr_md->mr_flags & ~MDF_FIRMWARE, mrd->mr_flags);
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bcopy(mrd->mr_owner, curr_md->mr_owner, sizeof(mrd->mr_owner));
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}
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return(0);
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}
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/*
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* Modify/add a variable MTRR to satisfy the request.
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*
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* XXX needs to be updated to properly support "busy" ranges.
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*/
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static int
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i686_mrsetvariable(struct mem_range_softc *sc, struct mem_range_desc *mrd, int *arg)
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{
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struct mem_range_desc *curr_md, *free_md;
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int i;
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/*
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* Scan the currently active variable descriptors, look for
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* one we exactly match (straight takeover) and for possible
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* accidental overlaps.
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* Keep track of the first empty variable descriptor in case we
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* can't perform a takeover.
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*/
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i = (sc->mr_cap & MR686_FIXMTRR) ? MTRR_N64K + MTRR_N16K + MTRR_N4K : 0;
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curr_md = sc->mr_desc + i;
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free_md = NULL;
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for (; i < sc->mr_ndesc; i++, curr_md++) {
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if (curr_md->mr_flags & MDF_ACTIVE) {
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/* exact match? */
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if ((curr_md->mr_base == mrd->mr_base) &&
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(curr_md->mr_len == mrd->mr_len)) {
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/* whoops, owned by someone */
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if (curr_md->mr_flags & MDF_BUSY)
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return(EBUSY);
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/* Ok, just hijack this entry */
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free_md = curr_md;
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break;
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}
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/* non-exact overlap? */
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if (mroverlap(curr_md, mrd))
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return(EINVAL);
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} else if (free_md == NULL) {
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free_md = curr_md;
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}
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}
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/* got somewhere to put it? */
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if (free_md == NULL)
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return(ENOSPC);
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/* Set up new descriptor */
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free_md->mr_base = mrd->mr_base;
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free_md->mr_len = mrd->mr_len;
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free_md->mr_flags = mrcopyflags(MDF_ACTIVE, mrd->mr_flags);
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bcopy(mrd->mr_owner, free_md->mr_owner, sizeof(mrd->mr_owner));
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return(0);
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}
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/*
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* Handle requests to set memory range attributes by manipulating MTRRs.
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*
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* Note that we're not too smart here; we'll split a range to insert a
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* region inside, and coalesce regions to make smaller ones, but nothing
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* really fancy.
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*/
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static int
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i686_mrset(struct mem_range_softc *sc, struct mem_range_desc *mrd, int *arg)
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{
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struct mem_range_desc *targ;
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int error = 0;
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switch(*arg) {
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case MEMRANGE_SET_UPDATE:
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/* make sure that what's being asked for is even possible at all */
|
||||
if (!mrvalid(mrd->mr_base, mrd->mr_len) ||
|
||||
(i686_mtrrtype(mrd->mr_flags & MDF_ATTRMASK) == -1))
|
||||
return(EINVAL);
|
||||
|
||||
#define FIXTOP ((MTRR_N64K * 0x10000) + (MTRR_N16K * 0x4000) + (MTRR_N4K * 0x1000))
|
||||
|
||||
/* are the "low memory" conditions applicable? */
|
||||
if ((sc->mr_cap & MR686_FIXMTRR) &&
|
||||
((mrd->mr_base + mrd->mr_len) <= FIXTOP)) {
|
||||
if ((error = i686_mrsetlow(sc, mrd, arg)) != 0)
|
||||
return(error);
|
||||
} else {
|
||||
/* it's time to play with variable MTRRs */
|
||||
if ((error = i686_mrsetvariable(sc, mrd, arg)) != 0)
|
||||
return(error);
|
||||
}
|
||||
break;
|
||||
|
||||
case MEMRANGE_SET_REMOVE:
|
||||
if ((targ = mem_range_match(sc, mrd)) == NULL)
|
||||
return(ENOENT);
|
||||
if (targ->mr_flags & MDF_FIXACTIVE)
|
||||
return(EPERM);
|
||||
if (targ->mr_flags & MDF_BUSY)
|
||||
return(EBUSY);
|
||||
targ->mr_flags &= ~MDF_ACTIVE;
|
||||
targ->mr_owner[0] = 0;
|
||||
break;
|
||||
|
||||
default:
|
||||
return(EOPNOTSUPP);
|
||||
}
|
||||
|
||||
/* update the hardware */
|
||||
if (i686_mrstore(sc))
|
||||
error = EIO;
|
||||
i686_mrfetch(sc); /* refetch to see where we're at */
|
||||
return(error);
|
||||
}
|
||||
|
||||
/*
|
||||
* Work out how many ranges we support, initialise storage for them,
|
||||
* fetch the initial settings.
|
||||
*/
|
||||
static void
|
||||
i686_mrinit(struct mem_range_softc *sc)
|
||||
{
|
||||
struct mem_range_desc *mrd;
|
||||
u_int64_t mtrrcap, mtrrdef;
|
||||
int nmdesc = 0;
|
||||
int i;
|
||||
|
||||
mtrrcap = rdmsr(MSR_MTRRcap);
|
||||
mtrrdef = rdmsr(MSR_MTRRdefType);
|
||||
|
||||
/* For now, bail out if MTRRs are not enabled */
|
||||
if (!(mtrrdef & 0x800)) {
|
||||
if (bootverbose)
|
||||
printf("CPU supports MTRRs but not enabled\n");
|
||||
return;
|
||||
}
|
||||
nmdesc = mtrrcap & 0xff;
|
||||
printf("Pentium Pro MTRR support enabled, default memory type is %s\n",
|
||||
i686_mtrrtotext[mtrrdef & 0xff]);
|
||||
|
||||
/* If fixed MTRRs supported and enabled */
|
||||
if ((mtrrcap & 0x100) && (mtrrdef & 0x400)) {
|
||||
sc->mr_cap = MR686_FIXMTRR;
|
||||
nmdesc += MTRR_N64K + MTRR_N16K + MTRR_N4K;
|
||||
}
|
||||
|
||||
sc->mr_desc =
|
||||
(struct mem_range_desc *)malloc(nmdesc * sizeof(struct mem_range_desc),
|
||||
M_MEMDESC, M_WAITOK);
|
||||
bzero(sc->mr_desc, nmdesc * sizeof(struct mem_range_desc));
|
||||
sc->mr_ndesc = nmdesc;
|
||||
|
||||
mrd = sc->mr_desc;
|
||||
|
||||
/* Populate the fixed MTRR entries' base/length */
|
||||
if (sc->mr_cap & MR686_FIXMTRR) {
|
||||
for (i = 0; i < MTRR_N64K; i++, mrd++) {
|
||||
mrd->mr_base = i * 0x10000;
|
||||
mrd->mr_len = 0x10000;
|
||||
mrd->mr_flags = MDF_FIXBASE | MDF_FIXLEN | MDF_FIXACTIVE;
|
||||
}
|
||||
for (i = 0; i < MTRR_N16K; i++, mrd++) {
|
||||
mrd->mr_base = i * 0x4000 + 0x80000;
|
||||
mrd->mr_len = 0x4000;
|
||||
mrd->mr_flags = MDF_FIXBASE | MDF_FIXLEN | MDF_FIXACTIVE;
|
||||
}
|
||||
for (i = 0; i < MTRR_N4K; i++, mrd++) {
|
||||
mrd->mr_base = i * 0x1000 + 0xc0000;
|
||||
mrd->mr_len = 0x1000;
|
||||
mrd->mr_flags = MDF_FIXBASE | MDF_FIXLEN | MDF_FIXACTIVE;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Get current settings, anything set now is considered to have
|
||||
* been set by the firmware. (XXX has something already played here?)
|
||||
*/
|
||||
i686_mrfetch(sc);
|
||||
mrd = sc->mr_desc;
|
||||
for (i = 0; i < sc->mr_ndesc; i++, mrd++) {
|
||||
if (mrd->mr_flags & MDF_ACTIVE)
|
||||
mrd->mr_flags |= MDF_FIRMWARE;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
i686_mem_drvinit(void *unused)
|
||||
{
|
||||
|
||||
/* Try for i686 MTRRs */
|
||||
if (cpu_feature & CPUID_MTRR) {
|
||||
mem_range_softc.mr_op = &i686_mrops;
|
||||
}
|
||||
}
|
||||
|
||||
SYSINIT(i686memdev,SI_SUB_DRIVERS,SI_ORDER_FIRST,i686_mem_drvinit,NULL)
|
||||
|
||||
|
||||
@ -38,7 +38,7 @@
|
||||
*
|
||||
* from: Utah $Hdr: mem.c 1.13 89/10/08$
|
||||
* from: @(#)mem.c 7.2 (Berkeley) 5/9/91
|
||||
* $Id: mem.c,v 1.53 1998/11/08 12:39:01 dfr Exp $
|
||||
* $Id: mem.c,v 1.54 1999/02/02 14:14:05 bde Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -57,13 +57,17 @@
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/uio.h>
|
||||
#include <sys/ioccom.h>
|
||||
#include <sys/malloc.h>
|
||||
#include <sys/memrange.h>
|
||||
#include <sys/proc.h>
|
||||
#include <sys/signalvar.h>
|
||||
|
||||
#include <machine/frame.h>
|
||||
#include <machine/md_var.h>
|
||||
#include <machine/random.h>
|
||||
#include <machine/psl.h>
|
||||
#include <machine/specialreg.h>
|
||||
#ifdef PERFMON
|
||||
#include <machine/perfmon.h>
|
||||
#endif
|
||||
@ -75,7 +79,6 @@
|
||||
#include <vm/vm_extern.h>
|
||||
|
||||
|
||||
|
||||
static d_open_t mmopen;
|
||||
static d_close_t mmclose;
|
||||
static d_read_t mmrw;
|
||||
@ -92,6 +95,12 @@ static struct cdevsw mem_cdevsw =
|
||||
static struct random_softc random_softc[16];
|
||||
static caddr_t zbuf;
|
||||
|
||||
MALLOC_DEFINE(M_MEMDESC, "memdesc", "memory range descriptors");
|
||||
static int mem_ioctl __P((dev_t, u_long, caddr_t, int, struct proc *));
|
||||
static int random_ioctl __P((dev_t, u_long, caddr_t, int, struct proc *));
|
||||
|
||||
struct mem_range_softc mem_range_softc;
|
||||
|
||||
#ifdef DEVFS
|
||||
static void *mem_devfs_token;
|
||||
static void *kmem_devfs_token;
|
||||
@ -418,23 +427,119 @@ mmioctl(dev, cmd, data, flags, p)
|
||||
int flags;
|
||||
struct proc *p;
|
||||
{
|
||||
static intrmask_t interrupt_allowed;
|
||||
intrmask_t interrupt_mask;
|
||||
int error, intr;
|
||||
struct random_softc *sc;
|
||||
|
||||
switch (minor(dev)) {
|
||||
case 0:
|
||||
return mem_ioctl(dev, cmd, data, flags, p);
|
||||
case 3:
|
||||
case 4:
|
||||
break;
|
||||
return random_ioctl(dev, cmd, data, flags, p);
|
||||
#ifdef PERFMON
|
||||
case 32:
|
||||
return perfmon_ioctl(dev, cmd, data, flags, p);
|
||||
#endif
|
||||
default:
|
||||
return (ENODEV);
|
||||
}
|
||||
return (ENODEV);
|
||||
}
|
||||
|
||||
/*
|
||||
* Operations for changing memory attributes.
|
||||
*
|
||||
* This is basically just an ioctl shim for mem_range_attr_get
|
||||
* and mem_range_attr_set.
|
||||
*/
|
||||
static int
|
||||
mem_ioctl(dev, cmd, data, flags, p)
|
||||
dev_t dev;
|
||||
u_long cmd;
|
||||
caddr_t data;
|
||||
int flags;
|
||||
struct proc *p;
|
||||
{
|
||||
int nd, error = 0;
|
||||
struct mem_range_op *mo = (struct mem_range_op *)data;
|
||||
struct mem_range_desc *md;
|
||||
|
||||
/* is this for us? */
|
||||
if ((cmd != MEMRANGE_GET) &&
|
||||
(cmd != MEMRANGE_SET))
|
||||
return(ENODEV);
|
||||
|
||||
/* any chance we can handle this? */
|
||||
if (mem_range_softc.mr_op == NULL)
|
||||
return(EOPNOTSUPP);
|
||||
|
||||
/* do we have any descriptors? */
|
||||
if (mem_range_softc.mr_ndesc == 0)
|
||||
return(ENXIO);
|
||||
|
||||
switch(cmd) {
|
||||
case MEMRANGE_GET:
|
||||
nd = imin(mo->mo_arg[0], mem_range_softc.mr_ndesc);
|
||||
if (nd > 0) {
|
||||
md = (struct mem_range_desc *)
|
||||
malloc(nd * sizeof(struct mem_range_desc),
|
||||
M_MEMDESC, M_WAITOK);
|
||||
mem_range_attr_get(md, &nd);
|
||||
error = copyout(md, mo->mo_desc,
|
||||
nd * sizeof(struct mem_range_desc));
|
||||
free(md, M_MEMDESC);
|
||||
} else {
|
||||
nd = mem_range_softc.mr_ndesc;
|
||||
}
|
||||
mo->mo_arg[0] = nd;
|
||||
break;
|
||||
|
||||
case MEMRANGE_SET:
|
||||
md = (struct mem_range_desc *)malloc(sizeof(struct mem_range_desc),
|
||||
M_MEMDESC, M_WAITOK);
|
||||
error = copyin(mo->mo_desc, md, sizeof(struct mem_range_desc));
|
||||
/* clamp description string */
|
||||
md->mr_owner[sizeof(md->mr_owner) - 1] = 0;
|
||||
if (error == 0)
|
||||
error = mem_range_attr_set(md, &mo->mo_arg[0]);
|
||||
free(md, M_MEMDESC);
|
||||
break;
|
||||
|
||||
default:
|
||||
error = EOPNOTSUPP;
|
||||
}
|
||||
return(error);
|
||||
}
|
||||
|
||||
/*
|
||||
* Implementation-neutral, kernel-callable functions for manipulating
|
||||
* memory range attributes.
|
||||
*/
|
||||
void
|
||||
mem_range_attr_get(struct mem_range_desc *mrd, int *arg)
|
||||
{
|
||||
if (*arg == 0) {
|
||||
*arg = mem_range_softc.mr_ndesc;
|
||||
} else {
|
||||
bcopy(mem_range_softc.mr_desc, mrd, (*arg) * sizeof(struct mem_range_desc));
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
mem_range_attr_set(struct mem_range_desc *mrd, int *arg)
|
||||
{
|
||||
return(mem_range_softc.mr_op->set(&mem_range_softc, mrd, arg));
|
||||
}
|
||||
|
||||
static int
|
||||
random_ioctl(dev, cmd, data, flags, p)
|
||||
dev_t dev;
|
||||
u_long cmd;
|
||||
caddr_t data;
|
||||
int flags;
|
||||
struct proc *p;
|
||||
{
|
||||
static intrmask_t interrupt_allowed;
|
||||
intrmask_t interrupt_mask;
|
||||
int error, intr;
|
||||
struct random_softc *sc;
|
||||
|
||||
/*
|
||||
* We're the random or urandom device. The only ioctls are for
|
||||
* selecting and inspecting which interrupts are used in the muck
|
||||
@ -539,7 +644,13 @@ mem_drvinit(void *unused)
|
||||
{
|
||||
dev_t dev;
|
||||
|
||||
/* Initialise memory range handling */
|
||||
if (mem_range_softc.mr_op != NULL)
|
||||
mem_range_softc.mr_op->init(&mem_range_softc);
|
||||
|
||||
/* device registration */
|
||||
if( ! mem_devsw_installed ) {
|
||||
|
||||
dev = makedev(CDEV_MAJOR, 0);
|
||||
cdevsw_add(&dev,&mem_cdevsw, NULL);
|
||||
mem_devsw_installed = 1;
|
||||
|
||||
@ -39,7 +39,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)pmap.c 7.7 (Berkeley) 5/12/91
|
||||
* $Id: pmap.c,v 1.227 1999/04/05 19:38:28 julian Exp $
|
||||
* $Id: pmap.c,v 1.228 1999/04/06 04:52:27 alc Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -184,11 +184,6 @@ static caddr_t CADDR2;
|
||||
static pt_entry_t *msgbufmap;
|
||||
struct msgbuf *msgbufp=0;
|
||||
|
||||
/*
|
||||
* PPro_vmtrr
|
||||
*/
|
||||
struct ppro_vmtrr PPro_vmtrr[NPPROVMTRR];
|
||||
|
||||
/* AIO support */
|
||||
extern struct vmspace *aiovmspace;
|
||||
|
||||
@ -464,96 +459,6 @@ pmap_bootstrap(firstaddr, loadaddr)
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
getmtrr()
|
||||
{
|
||||
int i;
|
||||
|
||||
if (cpu_class == CPUCLASS_686) {
|
||||
for(i = 0; i < NPPROVMTRR; i++) {
|
||||
PPro_vmtrr[i].base = rdmsr(PPRO_VMTRRphysBase0 + i * 2);
|
||||
PPro_vmtrr[i].mask = rdmsr(PPRO_VMTRRphysMask0 + i * 2);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
putmtrr()
|
||||
{
|
||||
int i;
|
||||
|
||||
if (cpu_class == CPUCLASS_686) {
|
||||
wbinvd();
|
||||
for(i = 0; i < NPPROVMTRR; i++) {
|
||||
wrmsr(PPRO_VMTRRphysBase0 + i * 2, PPro_vmtrr[i].base);
|
||||
wrmsr(PPRO_VMTRRphysMask0 + i * 2, PPro_vmtrr[i].mask);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
pmap_setvidram(void)
|
||||
{
|
||||
#if 0
|
||||
if (cpu_class == CPUCLASS_686) {
|
||||
wbinvd();
|
||||
/*
|
||||
* Set memory between 0-640K to be WB
|
||||
*/
|
||||
wrmsr(0x250, 0x0606060606060606LL);
|
||||
wrmsr(0x258, 0x0606060606060606LL);
|
||||
/*
|
||||
* Set normal, PC video memory to be WC
|
||||
*/
|
||||
wrmsr(0x259, 0x0101010101010101LL);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
void
|
||||
pmap_setdevram(unsigned long long basea, vm_offset_t sizea)
|
||||
{
|
||||
int i, free, skip;
|
||||
unsigned basepage, basepaget;
|
||||
unsigned long long base;
|
||||
unsigned long long mask;
|
||||
|
||||
if (cpu_class != CPUCLASS_686)
|
||||
return;
|
||||
|
||||
free = -1;
|
||||
skip = 0;
|
||||
basea &= ~0xfff;
|
||||
base = basea | 0x1;
|
||||
mask = (long long) (0xfffffffffLL - ((long) sizea - 1)) | (long long) 0x800;
|
||||
mask &= ~0x7ff;
|
||||
|
||||
basepage = (long long) (base >> 12);
|
||||
for(i = 0; i < NPPROVMTRR; i++) {
|
||||
PPro_vmtrr[i].base = rdmsr(PPRO_VMTRRphysBase0 + i * 2);
|
||||
PPro_vmtrr[i].mask = rdmsr(PPRO_VMTRRphysMask0 + i * 2);
|
||||
basepaget = (long long) (PPro_vmtrr[i].base >> 12);
|
||||
if (basepage == basepaget)
|
||||
skip = 1;
|
||||
if ((PPro_vmtrr[i].mask & 0x800) == 0) {
|
||||
if (free == -1)
|
||||
free = i;
|
||||
}
|
||||
}
|
||||
|
||||
if (!skip && free != -1) {
|
||||
wbinvd();
|
||||
PPro_vmtrr[free].base = base;
|
||||
PPro_vmtrr[free].mask = mask;
|
||||
wrmsr(PPRO_VMTRRphysBase0 + free * 2, base);
|
||||
wrmsr(PPRO_VMTRRphysMask0 + free * 2, mask);
|
||||
printf(
|
||||
"pmap: added WC mapping at page: 0x%x %x, size: %u mask: 0x%x %x\n",
|
||||
(u_int)(base >> 32), (u_int)base, sizea,
|
||||
(u_int)(mask >> 32), (u_int)mask);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Set 4mb pdir for mp startup, and global flags
|
||||
*/
|
||||
|
||||
554
sys/i386/i386/i686_mem.c
Normal file
554
sys/i386/i386/i686_mem.c
Normal file
@ -0,0 +1,554 @@
|
||||
/*-
|
||||
* Copyright (c) 1999 Michael Smith <msmith@freebsd.org>
|
||||
* 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.
|
||||
*
|
||||
* $Id$
|
||||
*/
|
||||
|
||||
#include "opt_smp.h"
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/ioccom.h>
|
||||
#include <sys/malloc.h>
|
||||
#include <sys/memrange.h>
|
||||
|
||||
#include <machine/md_var.h>
|
||||
#include <machine/specialreg.h>
|
||||
|
||||
/*
|
||||
* i686 memory range operations
|
||||
*
|
||||
* This code will probably be impenetrable without reference to the
|
||||
* Intel Pentium Pro documentation.
|
||||
*/
|
||||
|
||||
static char *mem_owner_bios = "BIOS";
|
||||
|
||||
#define MR686_FIXMTRR (1<<0)
|
||||
|
||||
#define mrwithin(mr, a) \
|
||||
(((a) >= (mr)->mr_base) && ((a) < ((mr)->mr_base + (mr)->mr_len)))
|
||||
#define mroverlap(mra, mrb) \
|
||||
(mrwithin(mra, mrb->mr_base) || mrwithin(mrb, mra->mr_base))
|
||||
|
||||
#define mrvalid(base, len) \
|
||||
((!(base & ((1 << 12) - 1))) && /* base is multiple of 4k */ \
|
||||
((len) >= (1 << 12)) && /* length is >= 4k */ \
|
||||
powerof2((len)) && /* ... and power of two */ \
|
||||
!((base) & ((len) - 1))) /* range is not discontiuous */
|
||||
|
||||
#define mrcopyflags(curr, new) (((curr) & ~MDF_ATTRMASK) | ((new) & MDF_ATTRMASK))
|
||||
|
||||
static void i686_mrinit(struct mem_range_softc *);
|
||||
static int i686_mrset(struct mem_range_softc *,
|
||||
struct mem_range_desc *,
|
||||
int *);
|
||||
|
||||
static struct mem_range_ops i686_mrops = {
|
||||
i686_mrinit,
|
||||
i686_mrset
|
||||
};
|
||||
|
||||
static struct mem_range_desc *mem_range_match(struct mem_range_softc *sc,
|
||||
struct mem_range_desc *mrd);
|
||||
static void i686_mrfetch(struct mem_range_softc *sc);
|
||||
static int i686_mtrrtype(int flags);
|
||||
static int i686_mrstore(struct mem_range_softc *sc);
|
||||
static struct mem_range_desc *i686_mtrrfixsearch(struct mem_range_softc *sc,
|
||||
u_int64_t addr);
|
||||
static int i686_mrsetlow(struct mem_range_softc *sc,
|
||||
struct mem_range_desc *mrd,
|
||||
int *arg);
|
||||
static int i686_mrsetvariable(struct mem_range_softc *sc,
|
||||
struct mem_range_desc *mrd,
|
||||
int *arg);
|
||||
|
||||
/* i686 MTRR type to memory range type conversion */
|
||||
static int i686_mtrrtomrt[] = {
|
||||
MDF_UNCACHEABLE,
|
||||
MDF_WRITECOMBINE,
|
||||
0,
|
||||
0,
|
||||
MDF_WRITETHROUGH,
|
||||
MDF_WRITEPROTECT,
|
||||
MDF_WRITEBACK
|
||||
};
|
||||
|
||||
/* MTRR type to text conversion */
|
||||
static char *i686_mtrrtotext[] = {
|
||||
"uncacheable",
|
||||
"write-combine",
|
||||
"invalid",
|
||||
"invalid",
|
||||
"write-through"
|
||||
"write-protect",
|
||||
"write-back"
|
||||
};
|
||||
|
||||
/*
|
||||
* Look for an exactly-matching range.
|
||||
*/
|
||||
static struct mem_range_desc *
|
||||
mem_range_match(struct mem_range_softc *sc, struct mem_range_desc *mrd)
|
||||
{
|
||||
struct mem_range_desc *cand;
|
||||
int i;
|
||||
|
||||
for (i = 0, cand = sc->mr_desc; i < sc->mr_ndesc; i++, cand++)
|
||||
if ((cand->mr_base == mrd->mr_base) &&
|
||||
(cand->mr_len == mrd->mr_len))
|
||||
return(cand);
|
||||
return(NULL);
|
||||
}
|
||||
|
||||
/*
|
||||
* Fetch the current mtrr settings from the current CPU (assumed to all
|
||||
* be in sync in the SMP case). Note that if we are here, we assume
|
||||
* that MTRRs are enabled, and we may or may not have fixed MTRRs.
|
||||
*/
|
||||
static void
|
||||
i686_mrfetch(struct mem_range_softc *sc)
|
||||
{
|
||||
struct mem_range_desc *mrd;
|
||||
u_int64_t msrv;
|
||||
int i, j, msr;
|
||||
|
||||
mrd = sc->mr_desc;
|
||||
|
||||
/* Get fixed-range MTRRs */
|
||||
if (sc->mr_cap & MR686_FIXMTRR) {
|
||||
msr = MSR_MTRR64kBase;
|
||||
for (i = 0; i < (MTRR_N64K / 8); i++, msr++) {
|
||||
msrv = rdmsr(msr);
|
||||
for (j = 0; j < 8; j++, mrd++) {
|
||||
mrd->mr_flags = (mrd->mr_flags & ~MDF_ATTRMASK) |
|
||||
i686_mtrrtomrt[msrv & 0xff] |
|
||||
MDF_ACTIVE;
|
||||
if (mrd->mr_owner[0] == 0)
|
||||
strcpy(mrd->mr_owner, mem_owner_bios);
|
||||
msrv = msrv >> 8;
|
||||
}
|
||||
}
|
||||
msr = MSR_MTRR16kBase;
|
||||
for (i = 0; i < (MTRR_N16K / 8); i++, msr++) {
|
||||
msrv = rdmsr(msr);
|
||||
for (j = 0; j < 8; j++, mrd++) {
|
||||
mrd->mr_flags = (mrd->mr_flags & ~MDF_ATTRMASK) |
|
||||
i686_mtrrtomrt[msrv & 0xff] |
|
||||
MDF_ACTIVE;
|
||||
if (mrd->mr_owner[0] == 0)
|
||||
strcpy(mrd->mr_owner, mem_owner_bios);
|
||||
msrv = msrv >> 8;
|
||||
}
|
||||
}
|
||||
msr = MSR_MTRR4kBase;
|
||||
for (i = 0; i < (MTRR_N4K / 8); i++, msr++) {
|
||||
msrv = rdmsr(msr);
|
||||
for (j = 0; j < 8; j++, mrd++) {
|
||||
mrd->mr_flags = (mrd->mr_flags & ~MDF_ATTRMASK) |
|
||||
i686_mtrrtomrt[msrv & 0xff] |
|
||||
MDF_ACTIVE;
|
||||
if (mrd->mr_owner[0] == 0)
|
||||
strcpy(mrd->mr_owner, mem_owner_bios);
|
||||
msrv = msrv >> 8;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* Get remainder which must be variable MTRRs */
|
||||
msr = MSR_MTRRVarBase;
|
||||
for (; (mrd - sc->mr_desc) < sc->mr_ndesc; msr += 2, mrd++) {
|
||||
msrv = rdmsr(msr);
|
||||
mrd->mr_flags = (mrd->mr_flags & ~MDF_ATTRMASK) |
|
||||
i686_mtrrtomrt[msrv & 0xff];
|
||||
mrd->mr_base = msrv & 0x0000000ffffff000LL;
|
||||
msrv = rdmsr(msr + 1);
|
||||
mrd->mr_flags = (msrv & 0x800) ?
|
||||
(mrd->mr_flags | MDF_ACTIVE) :
|
||||
(mrd->mr_flags & ~MDF_ACTIVE);
|
||||
/* Compute the range from the mask. Ick. */
|
||||
mrd->mr_len = (~(msrv & 0x0000000ffffff000LL) & 0x0000000fffffffffLL) + 1;
|
||||
if (!mrvalid(mrd->mr_base, mrd->mr_len))
|
||||
mrd->mr_flags |= MDF_BOGUS;
|
||||
/* If unclaimed and active, must be the BIOS */
|
||||
if ((mrd->mr_flags & MDF_ACTIVE) && (mrd->mr_owner[0] == 0))
|
||||
strcpy(mrd->mr_owner, mem_owner_bios);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Return the MTRR memory type matching a region's flags
|
||||
*/
|
||||
static int
|
||||
i686_mtrrtype(int flags)
|
||||
{
|
||||
int i;
|
||||
|
||||
flags &= MDF_ATTRMASK;
|
||||
|
||||
for (i = 0; i < (sizeof(i686_mtrrtomrt) / sizeof(i686_mtrrtomrt[0])); i++) {
|
||||
if (i686_mtrrtomrt[i] == 0)
|
||||
continue;
|
||||
if (flags == i686_mtrrtomrt[i])
|
||||
return(i);
|
||||
}
|
||||
return(-1);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Update the current CPU's MTRRs with those represented in the
|
||||
* descriptor list.
|
||||
*/
|
||||
static int
|
||||
i686_mrstore(struct mem_range_softc *sc)
|
||||
{
|
||||
struct mem_range_desc *mrd;
|
||||
u_int64_t msrv;
|
||||
int i, j, msr;
|
||||
u_int cr4save;
|
||||
|
||||
#ifdef SMP
|
||||
/*
|
||||
* We should use all_but_self_ipi() to call other CPUs into a
|
||||
* locking gate, then call a target function to do this work.
|
||||
* The "proper" solution involves a generalised locking gate
|
||||
* implementation, not ready yet.
|
||||
*/
|
||||
return(EOPNOTSUPP);
|
||||
#endif
|
||||
|
||||
disable_intr(); /* disable interrupts */
|
||||
cr4save = rcr4(); /* save cr4 */
|
||||
if (cr4save & CR4_PGE)
|
||||
load_cr4(cr4save & ~CR4_PGE);
|
||||
load_cr0((rcr0() & ~CR0_NW) | CR0_CD); /* disable caches (CD = 1, NW = 0) */
|
||||
wbinvd(); /* flush caches */
|
||||
invltlb(); /* flush TLBs */
|
||||
wrmsr(MSR_MTRRdefType, rdmsr(MSR_MTRRdefType) & ~0x800); /* disable MTRRs (E = 0) */
|
||||
|
||||
mrd = sc->mr_desc;
|
||||
|
||||
/* Set fixed-range MTRRs */
|
||||
if (sc->mr_cap & MR686_FIXMTRR) {
|
||||
msr = MSR_MTRR64kBase;
|
||||
for (i = 0; i < (MTRR_N64K / 8); i++, msr++) {
|
||||
msrv = 0;
|
||||
for (j = 7; j >= 0; j--) {
|
||||
msrv = msrv << 8;
|
||||
msrv |= (i686_mtrrtype((mrd + j)->mr_flags) & 0xff);
|
||||
}
|
||||
wrmsr(msr, msrv);
|
||||
mrd += 8;
|
||||
}
|
||||
msr = MSR_MTRR16kBase;
|
||||
for (i = 0; i < (MTRR_N16K / 8); i++, msr++) {
|
||||
msrv = 0;
|
||||
for (j = 7; j >= 0; j--) {
|
||||
msrv = msrv << 8;
|
||||
msrv |= (i686_mtrrtype((mrd + j)->mr_flags) & 0xff);
|
||||
}
|
||||
wrmsr(msr, msrv);
|
||||
mrd += 8;
|
||||
}
|
||||
msr = MSR_MTRR4kBase;
|
||||
for (i = 0; i < (MTRR_N4K / 8); i++, msr++) {
|
||||
msrv = 0;
|
||||
for (j = 7; j >= 0; j--) {
|
||||
msrv = msrv << 8;
|
||||
msrv |= (i686_mtrrtype((mrd + j)->mr_flags) & 0xff);
|
||||
}
|
||||
wrmsr(msr, msrv);
|
||||
mrd += 8;
|
||||
}
|
||||
}
|
||||
|
||||
/* Set remainder which must be variable MTRRs */
|
||||
msr = MSR_MTRRVarBase;
|
||||
for (; (mrd - sc->mr_desc) < sc->mr_ndesc; msr += 2, mrd++) {
|
||||
/* base/type register */
|
||||
if (mrd->mr_flags & MDF_ACTIVE) {
|
||||
msrv = mrd->mr_base & 0x0000000ffffff000LL;
|
||||
msrv |= (i686_mtrrtype(mrd->mr_flags) & 0xff);
|
||||
} else {
|
||||
msrv = 0;
|
||||
}
|
||||
wrmsr(msr, msrv);
|
||||
|
||||
/* mask/active register */
|
||||
if (mrd->mr_flags & MDF_ACTIVE) {
|
||||
msrv = 0x800 | (~(mrd->mr_len - 1) & 0x0000000ffffff000LL);
|
||||
} else {
|
||||
msrv = 0;
|
||||
}
|
||||
wrmsr(msr + 1, msrv);
|
||||
}
|
||||
|
||||
wbinvd(); /* flush caches */
|
||||
invltlb(); /* flush TLB */
|
||||
wrmsr(MSR_MTRRdefType, rdmsr(MSR_MTRRdefType) | 0x800); /* restore MTRR state */
|
||||
load_cr0(rcr0() & ~(CR0_CD | CR0_NW)); /* enable caches CD = 0 and NW = 0 */
|
||||
load_cr4(cr4save); /* restore cr4 */
|
||||
enable_intr(); /* enable interrupts */
|
||||
return(0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Hunt for the fixed MTRR referencing (addr)
|
||||
*/
|
||||
static struct mem_range_desc *
|
||||
i686_mtrrfixsearch(struct mem_range_softc *sc, u_int64_t addr)
|
||||
{
|
||||
struct mem_range_desc *mrd;
|
||||
int i;
|
||||
|
||||
for (i = 0, mrd = sc->mr_desc; i < (MTRR_N64K + MTRR_N16K + MTRR_N4K); i++, mrd++)
|
||||
if ((addr >= mrd->mr_base) && (addr < (mrd->mr_base + mrd->mr_len)))
|
||||
return(mrd);
|
||||
return(NULL);
|
||||
}
|
||||
|
||||
/*
|
||||
* Try to satisfy the given range request by manipulating the fixed MTRRs that
|
||||
* cover low memory.
|
||||
*
|
||||
* Note that we try to be generous here; we'll bloat the range out to the
|
||||
* next higher/lower boundary to avoid the consumer having to know too much
|
||||
* about the mechanisms here.
|
||||
*
|
||||
* XXX note that this will have to be updated when we start supporting "busy" ranges.
|
||||
*/
|
||||
static int
|
||||
i686_mrsetlow(struct mem_range_softc *sc, struct mem_range_desc *mrd, int *arg)
|
||||
{
|
||||
struct mem_range_desc *first_md, *last_md, *curr_md;
|
||||
|
||||
/* range check */
|
||||
if (((first_md = i686_mtrrfixsearch(sc, mrd->mr_base)) == NULL) ||
|
||||
((last_md = i686_mtrrfixsearch(sc, mrd->mr_base + mrd->mr_len - 1)) == NULL))
|
||||
return(EINVAL);
|
||||
|
||||
/* set flags, clear set-by-firmware flag */
|
||||
for (curr_md = first_md; curr_md <= last_md; curr_md++) {
|
||||
curr_md->mr_flags = mrcopyflags(curr_md->mr_flags & ~MDF_FIRMWARE, mrd->mr_flags);
|
||||
bcopy(mrd->mr_owner, curr_md->mr_owner, sizeof(mrd->mr_owner));
|
||||
}
|
||||
|
||||
return(0);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Modify/add a variable MTRR to satisfy the request.
|
||||
*
|
||||
* XXX needs to be updated to properly support "busy" ranges.
|
||||
*/
|
||||
static int
|
||||
i686_mrsetvariable(struct mem_range_softc *sc, struct mem_range_desc *mrd, int *arg)
|
||||
{
|
||||
struct mem_range_desc *curr_md, *free_md;
|
||||
int i;
|
||||
|
||||
/*
|
||||
* Scan the currently active variable descriptors, look for
|
||||
* one we exactly match (straight takeover) and for possible
|
||||
* accidental overlaps.
|
||||
* Keep track of the first empty variable descriptor in case we
|
||||
* can't perform a takeover.
|
||||
*/
|
||||
i = (sc->mr_cap & MR686_FIXMTRR) ? MTRR_N64K + MTRR_N16K + MTRR_N4K : 0;
|
||||
curr_md = sc->mr_desc + i;
|
||||
free_md = NULL;
|
||||
for (; i < sc->mr_ndesc; i++, curr_md++) {
|
||||
if (curr_md->mr_flags & MDF_ACTIVE) {
|
||||
/* exact match? */
|
||||
if ((curr_md->mr_base == mrd->mr_base) &&
|
||||
(curr_md->mr_len == mrd->mr_len)) {
|
||||
/* whoops, owned by someone */
|
||||
if (curr_md->mr_flags & MDF_BUSY)
|
||||
return(EBUSY);
|
||||
/* Ok, just hijack this entry */
|
||||
free_md = curr_md;
|
||||
break;
|
||||
}
|
||||
/* non-exact overlap? */
|
||||
if (mroverlap(curr_md, mrd))
|
||||
return(EINVAL);
|
||||
} else if (free_md == NULL) {
|
||||
free_md = curr_md;
|
||||
}
|
||||
}
|
||||
/* got somewhere to put it? */
|
||||
if (free_md == NULL)
|
||||
return(ENOSPC);
|
||||
|
||||
/* Set up new descriptor */
|
||||
free_md->mr_base = mrd->mr_base;
|
||||
free_md->mr_len = mrd->mr_len;
|
||||
free_md->mr_flags = mrcopyflags(MDF_ACTIVE, mrd->mr_flags);
|
||||
bcopy(mrd->mr_owner, free_md->mr_owner, sizeof(mrd->mr_owner));
|
||||
return(0);
|
||||
}
|
||||
|
||||
/*
|
||||
* Handle requests to set memory range attributes by manipulating MTRRs.
|
||||
*
|
||||
* Note that we're not too smart here; we'll split a range to insert a
|
||||
* region inside, and coalesce regions to make smaller ones, but nothing
|
||||
* really fancy.
|
||||
*/
|
||||
static int
|
||||
i686_mrset(struct mem_range_softc *sc, struct mem_range_desc *mrd, int *arg)
|
||||
{
|
||||
struct mem_range_desc *targ;
|
||||
int error = 0;
|
||||
|
||||
switch(*arg) {
|
||||
case MEMRANGE_SET_UPDATE:
|
||||
/* make sure that what's being asked for is even possible at all */
|
||||
if (!mrvalid(mrd->mr_base, mrd->mr_len) ||
|
||||
(i686_mtrrtype(mrd->mr_flags & MDF_ATTRMASK) == -1))
|
||||
return(EINVAL);
|
||||
|
||||
#define FIXTOP ((MTRR_N64K * 0x10000) + (MTRR_N16K * 0x4000) + (MTRR_N4K * 0x1000))
|
||||
|
||||
/* are the "low memory" conditions applicable? */
|
||||
if ((sc->mr_cap & MR686_FIXMTRR) &&
|
||||
((mrd->mr_base + mrd->mr_len) <= FIXTOP)) {
|
||||
if ((error = i686_mrsetlow(sc, mrd, arg)) != 0)
|
||||
return(error);
|
||||
} else {
|
||||
/* it's time to play with variable MTRRs */
|
||||
if ((error = i686_mrsetvariable(sc, mrd, arg)) != 0)
|
||||
return(error);
|
||||
}
|
||||
break;
|
||||
|
||||
case MEMRANGE_SET_REMOVE:
|
||||
if ((targ = mem_range_match(sc, mrd)) == NULL)
|
||||
return(ENOENT);
|
||||
if (targ->mr_flags & MDF_FIXACTIVE)
|
||||
return(EPERM);
|
||||
if (targ->mr_flags & MDF_BUSY)
|
||||
return(EBUSY);
|
||||
targ->mr_flags &= ~MDF_ACTIVE;
|
||||
targ->mr_owner[0] = 0;
|
||||
break;
|
||||
|
||||
default:
|
||||
return(EOPNOTSUPP);
|
||||
}
|
||||
|
||||
/* update the hardware */
|
||||
if (i686_mrstore(sc))
|
||||
error = EIO;
|
||||
i686_mrfetch(sc); /* refetch to see where we're at */
|
||||
return(error);
|
||||
}
|
||||
|
||||
/*
|
||||
* Work out how many ranges we support, initialise storage for them,
|
||||
* fetch the initial settings.
|
||||
*/
|
||||
static void
|
||||
i686_mrinit(struct mem_range_softc *sc)
|
||||
{
|
||||
struct mem_range_desc *mrd;
|
||||
u_int64_t mtrrcap, mtrrdef;
|
||||
int nmdesc = 0;
|
||||
int i;
|
||||
|
||||
mtrrcap = rdmsr(MSR_MTRRcap);
|
||||
mtrrdef = rdmsr(MSR_MTRRdefType);
|
||||
|
||||
/* For now, bail out if MTRRs are not enabled */
|
||||
if (!(mtrrdef & 0x800)) {
|
||||
if (bootverbose)
|
||||
printf("CPU supports MTRRs but not enabled\n");
|
||||
return;
|
||||
}
|
||||
nmdesc = mtrrcap & 0xff;
|
||||
printf("Pentium Pro MTRR support enabled, default memory type is %s\n",
|
||||
i686_mtrrtotext[mtrrdef & 0xff]);
|
||||
|
||||
/* If fixed MTRRs supported and enabled */
|
||||
if ((mtrrcap & 0x100) && (mtrrdef & 0x400)) {
|
||||
sc->mr_cap = MR686_FIXMTRR;
|
||||
nmdesc += MTRR_N64K + MTRR_N16K + MTRR_N4K;
|
||||
}
|
||||
|
||||
sc->mr_desc =
|
||||
(struct mem_range_desc *)malloc(nmdesc * sizeof(struct mem_range_desc),
|
||||
M_MEMDESC, M_WAITOK);
|
||||
bzero(sc->mr_desc, nmdesc * sizeof(struct mem_range_desc));
|
||||
sc->mr_ndesc = nmdesc;
|
||||
|
||||
mrd = sc->mr_desc;
|
||||
|
||||
/* Populate the fixed MTRR entries' base/length */
|
||||
if (sc->mr_cap & MR686_FIXMTRR) {
|
||||
for (i = 0; i < MTRR_N64K; i++, mrd++) {
|
||||
mrd->mr_base = i * 0x10000;
|
||||
mrd->mr_len = 0x10000;
|
||||
mrd->mr_flags = MDF_FIXBASE | MDF_FIXLEN | MDF_FIXACTIVE;
|
||||
}
|
||||
for (i = 0; i < MTRR_N16K; i++, mrd++) {
|
||||
mrd->mr_base = i * 0x4000 + 0x80000;
|
||||
mrd->mr_len = 0x4000;
|
||||
mrd->mr_flags = MDF_FIXBASE | MDF_FIXLEN | MDF_FIXACTIVE;
|
||||
}
|
||||
for (i = 0; i < MTRR_N4K; i++, mrd++) {
|
||||
mrd->mr_base = i * 0x1000 + 0xc0000;
|
||||
mrd->mr_len = 0x1000;
|
||||
mrd->mr_flags = MDF_FIXBASE | MDF_FIXLEN | MDF_FIXACTIVE;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Get current settings, anything set now is considered to have
|
||||
* been set by the firmware. (XXX has something already played here?)
|
||||
*/
|
||||
i686_mrfetch(sc);
|
||||
mrd = sc->mr_desc;
|
||||
for (i = 0; i < sc->mr_ndesc; i++, mrd++) {
|
||||
if (mrd->mr_flags & MDF_ACTIVE)
|
||||
mrd->mr_flags |= MDF_FIRMWARE;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
i686_mem_drvinit(void *unused)
|
||||
{
|
||||
|
||||
/* Try for i686 MTRRs */
|
||||
if (cpu_feature & CPUID_MTRR) {
|
||||
mem_range_softc.mr_op = &i686_mrops;
|
||||
}
|
||||
}
|
||||
|
||||
SYSINIT(i686memdev,SI_SUB_DRIVERS,SI_ORDER_FIRST,i686_mem_drvinit,NULL)
|
||||
|
||||
|
||||
@ -38,7 +38,7 @@
|
||||
*
|
||||
* from: Utah $Hdr: mem.c 1.13 89/10/08$
|
||||
* from: @(#)mem.c 7.2 (Berkeley) 5/9/91
|
||||
* $Id: mem.c,v 1.53 1998/11/08 12:39:01 dfr Exp $
|
||||
* $Id: mem.c,v 1.54 1999/02/02 14:14:05 bde Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -57,13 +57,17 @@
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/uio.h>
|
||||
#include <sys/ioccom.h>
|
||||
#include <sys/malloc.h>
|
||||
#include <sys/memrange.h>
|
||||
#include <sys/proc.h>
|
||||
#include <sys/signalvar.h>
|
||||
|
||||
#include <machine/frame.h>
|
||||
#include <machine/md_var.h>
|
||||
#include <machine/random.h>
|
||||
#include <machine/psl.h>
|
||||
#include <machine/specialreg.h>
|
||||
#ifdef PERFMON
|
||||
#include <machine/perfmon.h>
|
||||
#endif
|
||||
@ -75,7 +79,6 @@
|
||||
#include <vm/vm_extern.h>
|
||||
|
||||
|
||||
|
||||
static d_open_t mmopen;
|
||||
static d_close_t mmclose;
|
||||
static d_read_t mmrw;
|
||||
@ -92,6 +95,12 @@ static struct cdevsw mem_cdevsw =
|
||||
static struct random_softc random_softc[16];
|
||||
static caddr_t zbuf;
|
||||
|
||||
MALLOC_DEFINE(M_MEMDESC, "memdesc", "memory range descriptors");
|
||||
static int mem_ioctl __P((dev_t, u_long, caddr_t, int, struct proc *));
|
||||
static int random_ioctl __P((dev_t, u_long, caddr_t, int, struct proc *));
|
||||
|
||||
struct mem_range_softc mem_range_softc;
|
||||
|
||||
#ifdef DEVFS
|
||||
static void *mem_devfs_token;
|
||||
static void *kmem_devfs_token;
|
||||
@ -418,23 +427,119 @@ mmioctl(dev, cmd, data, flags, p)
|
||||
int flags;
|
||||
struct proc *p;
|
||||
{
|
||||
static intrmask_t interrupt_allowed;
|
||||
intrmask_t interrupt_mask;
|
||||
int error, intr;
|
||||
struct random_softc *sc;
|
||||
|
||||
switch (minor(dev)) {
|
||||
case 0:
|
||||
return mem_ioctl(dev, cmd, data, flags, p);
|
||||
case 3:
|
||||
case 4:
|
||||
break;
|
||||
return random_ioctl(dev, cmd, data, flags, p);
|
||||
#ifdef PERFMON
|
||||
case 32:
|
||||
return perfmon_ioctl(dev, cmd, data, flags, p);
|
||||
#endif
|
||||
default:
|
||||
return (ENODEV);
|
||||
}
|
||||
return (ENODEV);
|
||||
}
|
||||
|
||||
/*
|
||||
* Operations for changing memory attributes.
|
||||
*
|
||||
* This is basically just an ioctl shim for mem_range_attr_get
|
||||
* and mem_range_attr_set.
|
||||
*/
|
||||
static int
|
||||
mem_ioctl(dev, cmd, data, flags, p)
|
||||
dev_t dev;
|
||||
u_long cmd;
|
||||
caddr_t data;
|
||||
int flags;
|
||||
struct proc *p;
|
||||
{
|
||||
int nd, error = 0;
|
||||
struct mem_range_op *mo = (struct mem_range_op *)data;
|
||||
struct mem_range_desc *md;
|
||||
|
||||
/* is this for us? */
|
||||
if ((cmd != MEMRANGE_GET) &&
|
||||
(cmd != MEMRANGE_SET))
|
||||
return(ENODEV);
|
||||
|
||||
/* any chance we can handle this? */
|
||||
if (mem_range_softc.mr_op == NULL)
|
||||
return(EOPNOTSUPP);
|
||||
|
||||
/* do we have any descriptors? */
|
||||
if (mem_range_softc.mr_ndesc == 0)
|
||||
return(ENXIO);
|
||||
|
||||
switch(cmd) {
|
||||
case MEMRANGE_GET:
|
||||
nd = imin(mo->mo_arg[0], mem_range_softc.mr_ndesc);
|
||||
if (nd > 0) {
|
||||
md = (struct mem_range_desc *)
|
||||
malloc(nd * sizeof(struct mem_range_desc),
|
||||
M_MEMDESC, M_WAITOK);
|
||||
mem_range_attr_get(md, &nd);
|
||||
error = copyout(md, mo->mo_desc,
|
||||
nd * sizeof(struct mem_range_desc));
|
||||
free(md, M_MEMDESC);
|
||||
} else {
|
||||
nd = mem_range_softc.mr_ndesc;
|
||||
}
|
||||
mo->mo_arg[0] = nd;
|
||||
break;
|
||||
|
||||
case MEMRANGE_SET:
|
||||
md = (struct mem_range_desc *)malloc(sizeof(struct mem_range_desc),
|
||||
M_MEMDESC, M_WAITOK);
|
||||
error = copyin(mo->mo_desc, md, sizeof(struct mem_range_desc));
|
||||
/* clamp description string */
|
||||
md->mr_owner[sizeof(md->mr_owner) - 1] = 0;
|
||||
if (error == 0)
|
||||
error = mem_range_attr_set(md, &mo->mo_arg[0]);
|
||||
free(md, M_MEMDESC);
|
||||
break;
|
||||
|
||||
default:
|
||||
error = EOPNOTSUPP;
|
||||
}
|
||||
return(error);
|
||||
}
|
||||
|
||||
/*
|
||||
* Implementation-neutral, kernel-callable functions for manipulating
|
||||
* memory range attributes.
|
||||
*/
|
||||
void
|
||||
mem_range_attr_get(struct mem_range_desc *mrd, int *arg)
|
||||
{
|
||||
if (*arg == 0) {
|
||||
*arg = mem_range_softc.mr_ndesc;
|
||||
} else {
|
||||
bcopy(mem_range_softc.mr_desc, mrd, (*arg) * sizeof(struct mem_range_desc));
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
mem_range_attr_set(struct mem_range_desc *mrd, int *arg)
|
||||
{
|
||||
return(mem_range_softc.mr_op->set(&mem_range_softc, mrd, arg));
|
||||
}
|
||||
|
||||
static int
|
||||
random_ioctl(dev, cmd, data, flags, p)
|
||||
dev_t dev;
|
||||
u_long cmd;
|
||||
caddr_t data;
|
||||
int flags;
|
||||
struct proc *p;
|
||||
{
|
||||
static intrmask_t interrupt_allowed;
|
||||
intrmask_t interrupt_mask;
|
||||
int error, intr;
|
||||
struct random_softc *sc;
|
||||
|
||||
/*
|
||||
* We're the random or urandom device. The only ioctls are for
|
||||
* selecting and inspecting which interrupts are used in the muck
|
||||
@ -539,7 +644,13 @@ mem_drvinit(void *unused)
|
||||
{
|
||||
dev_t dev;
|
||||
|
||||
/* Initialise memory range handling */
|
||||
if (mem_range_softc.mr_op != NULL)
|
||||
mem_range_softc.mr_op->init(&mem_range_softc);
|
||||
|
||||
/* device registration */
|
||||
if( ! mem_devsw_installed ) {
|
||||
|
||||
dev = makedev(CDEV_MAJOR, 0);
|
||||
cdevsw_add(&dev,&mem_cdevsw, NULL);
|
||||
mem_devsw_installed = 1;
|
||||
|
||||
@ -39,7 +39,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)pmap.c 7.7 (Berkeley) 5/12/91
|
||||
* $Id: pmap.c,v 1.227 1999/04/05 19:38:28 julian Exp $
|
||||
* $Id: pmap.c,v 1.228 1999/04/06 04:52:27 alc Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -184,11 +184,6 @@ static caddr_t CADDR2;
|
||||
static pt_entry_t *msgbufmap;
|
||||
struct msgbuf *msgbufp=0;
|
||||
|
||||
/*
|
||||
* PPro_vmtrr
|
||||
*/
|
||||
struct ppro_vmtrr PPro_vmtrr[NPPROVMTRR];
|
||||
|
||||
/* AIO support */
|
||||
extern struct vmspace *aiovmspace;
|
||||
|
||||
@ -464,96 +459,6 @@ pmap_bootstrap(firstaddr, loadaddr)
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
getmtrr()
|
||||
{
|
||||
int i;
|
||||
|
||||
if (cpu_class == CPUCLASS_686) {
|
||||
for(i = 0; i < NPPROVMTRR; i++) {
|
||||
PPro_vmtrr[i].base = rdmsr(PPRO_VMTRRphysBase0 + i * 2);
|
||||
PPro_vmtrr[i].mask = rdmsr(PPRO_VMTRRphysMask0 + i * 2);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
putmtrr()
|
||||
{
|
||||
int i;
|
||||
|
||||
if (cpu_class == CPUCLASS_686) {
|
||||
wbinvd();
|
||||
for(i = 0; i < NPPROVMTRR; i++) {
|
||||
wrmsr(PPRO_VMTRRphysBase0 + i * 2, PPro_vmtrr[i].base);
|
||||
wrmsr(PPRO_VMTRRphysMask0 + i * 2, PPro_vmtrr[i].mask);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
pmap_setvidram(void)
|
||||
{
|
||||
#if 0
|
||||
if (cpu_class == CPUCLASS_686) {
|
||||
wbinvd();
|
||||
/*
|
||||
* Set memory between 0-640K to be WB
|
||||
*/
|
||||
wrmsr(0x250, 0x0606060606060606LL);
|
||||
wrmsr(0x258, 0x0606060606060606LL);
|
||||
/*
|
||||
* Set normal, PC video memory to be WC
|
||||
*/
|
||||
wrmsr(0x259, 0x0101010101010101LL);
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
void
|
||||
pmap_setdevram(unsigned long long basea, vm_offset_t sizea)
|
||||
{
|
||||
int i, free, skip;
|
||||
unsigned basepage, basepaget;
|
||||
unsigned long long base;
|
||||
unsigned long long mask;
|
||||
|
||||
if (cpu_class != CPUCLASS_686)
|
||||
return;
|
||||
|
||||
free = -1;
|
||||
skip = 0;
|
||||
basea &= ~0xfff;
|
||||
base = basea | 0x1;
|
||||
mask = (long long) (0xfffffffffLL - ((long) sizea - 1)) | (long long) 0x800;
|
||||
mask &= ~0x7ff;
|
||||
|
||||
basepage = (long long) (base >> 12);
|
||||
for(i = 0; i < NPPROVMTRR; i++) {
|
||||
PPro_vmtrr[i].base = rdmsr(PPRO_VMTRRphysBase0 + i * 2);
|
||||
PPro_vmtrr[i].mask = rdmsr(PPRO_VMTRRphysMask0 + i * 2);
|
||||
basepaget = (long long) (PPro_vmtrr[i].base >> 12);
|
||||
if (basepage == basepaget)
|
||||
skip = 1;
|
||||
if ((PPro_vmtrr[i].mask & 0x800) == 0) {
|
||||
if (free == -1)
|
||||
free = i;
|
||||
}
|
||||
}
|
||||
|
||||
if (!skip && free != -1) {
|
||||
wbinvd();
|
||||
PPro_vmtrr[free].base = base;
|
||||
PPro_vmtrr[free].mask = mask;
|
||||
wrmsr(PPRO_VMTRRphysBase0 + free * 2, base);
|
||||
wrmsr(PPRO_VMTRRphysMask0 + free * 2, mask);
|
||||
printf(
|
||||
"pmap: added WC mapping at page: 0x%x %x, size: %u mask: 0x%x %x\n",
|
||||
(u_int)(base >> 32), (u_int)base, sizea,
|
||||
(u_int)(mask >> 32), (u_int)mask);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Set 4mb pdir for mp startup, and global flags
|
||||
*/
|
||||
|
||||
Loading…
Reference in New Issue
Block a user