4f90f79024
i.e. alignment, max_address, max_iosize and segsize (only max_address is thought to have an negative impact regarding this issue though), after calling ata_dmainit() either directly or indirectly so these values have no effect or at least no effect on the DMA tags and the defaults are used for the latter instead. So change the drivers to set these parameters up-front and ata_dmainit() to honor them. Reviewd by: mav MFC after: 1 month
134 lines
4.2 KiB
C
134 lines
4.2 KiB
C
/*-
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* Copyright (c) 1998 - 2008 Søren Schmidt <sos@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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* without modification, immediately at the beginning of the file.
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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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 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 "opt_ata.h"
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#include <sys/param.h>
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#include <sys/module.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/ata.h>
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#include <sys/bus.h>
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#include <sys/endian.h>
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#include <sys/malloc.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/sema.h>
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#include <sys/taskqueue.h>
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#include <vm/uma.h>
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#include <machine/stdarg.h>
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#include <machine/resource.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <dev/ata/ata-all.h>
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#include <dev/ata/ata-pci.h>
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#include <ata_if.h>
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/* local prototypes */
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static int ata_national_chipinit(device_t dev);
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static int ata_national_ch_attach(device_t dev);
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static int ata_national_setmode(device_t dev, int target, int mode);
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/*
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* National chipset support functions
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*/
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static int
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ata_national_probe(device_t dev)
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{
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struct ata_pci_controller *ctlr = device_get_softc(dev);
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/* this chip is a clone of the Cyrix chip, bugs and all */
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if (pci_get_devid(dev) == ATA_SC1100) {
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device_set_desc(dev, "National Geode SC1100 ATA33 controller");
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ctlr->chipinit = ata_national_chipinit;
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return (BUS_PROBE_DEFAULT);
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}
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return ENXIO;
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}
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static int
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ata_national_chipinit(device_t dev)
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{
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struct ata_pci_controller *ctlr = device_get_softc(dev);
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if (ata_setup_interrupt(dev, ata_generic_intr))
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return ENXIO;
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ctlr->ch_attach = ata_national_ch_attach;
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ctlr->setmode = ata_national_setmode;
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return 0;
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}
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static int
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ata_national_ch_attach(device_t dev)
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{
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struct ata_channel *ch = device_get_softc(dev);
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ch->dma.alignment = 16;
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ch->dma.max_iosize = 64 * DEV_BSIZE;
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return (ata_pci_ch_attach(dev));
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}
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static int
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ata_national_setmode(device_t dev, int target, int mode)
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{
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device_t parent = device_get_parent(dev);
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struct ata_channel *ch = device_get_softc(dev);
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int devno = (ch->unit << 1) + target;
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int piomode;
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u_int32_t piotiming[] =
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{ 0x9172d132, 0x21717121, 0x00803020, 0x20102010, 0x00100010,
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0x9172d132, 0x20102010, 0x00100010 };
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u_int32_t dmatiming[] = { 0x80077771, 0x80012121, 0x80002020 };
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u_int32_t udmatiming[] = { 0x80921250, 0x80911140, 0x80911030 };
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mode = min(mode, ATA_UDMA2);
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if (mode >= ATA_UDMA0) {
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pci_write_config(parent, 0x44 + (devno << 3),
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udmatiming[mode & ATA_MODE_MASK], 4);
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piomode = ATA_PIO4;
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} else if (mode >= ATA_WDMA0) {
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pci_write_config(parent, 0x44 + (devno << 3),
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dmatiming[mode & ATA_MODE_MASK], 4);
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piomode = mode;
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} else {
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pci_write_config(parent, 0x44 + (devno << 3),
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pci_read_config(parent, 0x44 + (devno << 3), 4) |
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0x80000000, 4);
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piomode = mode;
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}
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pci_write_config(parent, 0x40 + (devno << 3),
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piotiming[ata_mode2idx(piomode)], 4);
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return (mode);
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}
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ATA_DECLARE_DRIVER(ata_national);
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