forked from Minki/linux
d5271be6b5
It turns out that const and __{dev}initdata cannot be mixed currently
and that generic IDE PCI host driver is also affected by the same issue:
On Thursday 25 October 2007, Ralf Baechle wrote:
> CC drivers/ide/pci/generic.o
> drivers/ide/pci/generic.c:52: error: __setup_str_ide_generic_all_on causes a
> +section type conflict
[ Also reported by Martijn Uffing <mp3project@sarijopen.student.utwente.nl>. ]
This patch workarounds the problem in a bit hackish way but without
removing const from generic_chipsets[] (it adds const to __setup() so
__setup_str_ide_generic_all becomes const).
Now all __{dev}initdata data in generic IDE PCI host driver are read-only
so it builds again (driver's .init.data section gets marked as READONLY).
Cc: Martijn Uffing <mp3project@sarijopen.student.utwente.nl>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
212 lines
6.6 KiB
C
212 lines
6.6 KiB
C
/*
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* linux/drivers/ide/pci/generic.c Version 0.11 December 30, 2002
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*
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* Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
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* Portions (C) Copyright 2002 Red Hat Inc <alan@redhat.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* For the avoidance of doubt the "preferred form" of this code is one which
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* is in an open non patent encumbered format. Where cryptographic key signing
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* forms part of the process of creating an executable the information
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* including keys needed to generate an equivalently functional executable
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* are deemed to be part of the source code.
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*/
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#include <linux/types.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/delay.h>
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#include <linux/timer.h>
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#include <linux/mm.h>
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#include <linux/ioport.h>
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#include <linux/blkdev.h>
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#include <linux/hdreg.h>
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#include <linux/pci.h>
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#include <linux/ide.h>
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#include <linux/init.h>
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#include <asm/io.h>
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static int ide_generic_all; /* Set to claim all devices */
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/*
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* the module_param_named() was added for the modular case
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* the __setup() is left as compatibility for existing setups
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*/
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#ifndef MODULE
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static int __init ide_generic_all_on(char *unused)
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{
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ide_generic_all = 1;
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printk(KERN_INFO "IDE generic will claim all unknown PCI IDE storage controllers.\n");
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return 1;
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}
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const __setup("all-generic-ide", ide_generic_all_on);
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#endif
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module_param_named(all_generic_ide, ide_generic_all, bool, 0444);
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MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers.");
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#define IDE_HFLAGS_UMC (IDE_HFLAG_NO_DMA | IDE_HFLAG_FORCE_LEGACY_IRQS)
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#define DECLARE_GENERIC_PCI_DEV(name_str, extra_flags) \
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{ \
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.name = name_str, \
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | \
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extra_flags | \
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IDE_HFLAG_BOOTABLE, \
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.swdma_mask = ATA_SWDMA2, \
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.mwdma_mask = ATA_MWDMA2, \
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.udma_mask = ATA_UDMA6, \
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}
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static const struct ide_port_info generic_chipsets[] __devinitdata = {
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/* 0 */ DECLARE_GENERIC_PCI_DEV("Unknown", 0),
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{ /* 1 */
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.name = "NS87410",
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.enablebits = {{0x43,0x08,0x08}, {0x47,0x08,0x08}},
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
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IDE_HFLAG_BOOTABLE,
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.swdma_mask = ATA_SWDMA2,
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.mwdma_mask = ATA_MWDMA2,
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.udma_mask = ATA_UDMA6,
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},
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/* 2 */ DECLARE_GENERIC_PCI_DEV("SAMURAI", 0),
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/* 3 */ DECLARE_GENERIC_PCI_DEV("HT6565", 0),
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/* 4 */ DECLARE_GENERIC_PCI_DEV("UM8673F", IDE_HFLAGS_UMC),
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/* 5 */ DECLARE_GENERIC_PCI_DEV("UM8886A", IDE_HFLAGS_UMC),
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/* 6 */ DECLARE_GENERIC_PCI_DEV("UM8886BF", IDE_HFLAGS_UMC),
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/* 7 */ DECLARE_GENERIC_PCI_DEV("HINT_IDE", 0),
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/* 8 */ DECLARE_GENERIC_PCI_DEV("VIA_IDE", IDE_HFLAG_NO_AUTODMA),
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/* 9 */ DECLARE_GENERIC_PCI_DEV("OPTI621V", IDE_HFLAG_NO_AUTODMA),
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{ /* 10 */
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.name = "VIA8237SATA",
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
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IDE_HFLAG_OFF_BOARD,
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.swdma_mask = ATA_SWDMA2,
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.mwdma_mask = ATA_MWDMA2,
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.udma_mask = ATA_UDMA6,
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},
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/* 11 */ DECLARE_GENERIC_PCI_DEV("Piccolo0102", IDE_HFLAG_NO_AUTODMA),
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/* 12 */ DECLARE_GENERIC_PCI_DEV("Piccolo0103", IDE_HFLAG_NO_AUTODMA),
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/* 13 */ DECLARE_GENERIC_PCI_DEV("Piccolo0105", IDE_HFLAG_NO_AUTODMA),
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{ /* 14 */
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.name = "Revolution",
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.host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA |
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IDE_HFLAG_OFF_BOARD,
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.swdma_mask = ATA_SWDMA2,
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.mwdma_mask = ATA_MWDMA2,
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.udma_mask = ATA_UDMA6,
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}
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};
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/**
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* generic_init_one - called when a PIIX is found
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* @dev: the generic device
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* @id: the matching pci id
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*
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* Called when the PCI registration layer (or the IDE initialization)
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* finds a device matching our IDE device tables.
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*/
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static int __devinit generic_init_one(struct pci_dev *dev, const struct pci_device_id *id)
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{
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const struct ide_port_info *d = &generic_chipsets[id->driver_data];
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int ret = -ENODEV;
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/* Don't use the generic entry unless instructed to do so */
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if (id->driver_data == 0 && ide_generic_all == 0)
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goto out;
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switch (dev->vendor) {
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case PCI_VENDOR_ID_UMC:
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if (dev->device == PCI_DEVICE_ID_UMC_UM8886A &&
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!(PCI_FUNC(dev->devfn) & 1))
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goto out; /* UM8886A/BF pair */
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break;
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case PCI_VENDOR_ID_OPTI:
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if (dev->device == PCI_DEVICE_ID_OPTI_82C558 &&
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!(PCI_FUNC(dev->devfn) & 1))
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goto out;
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break;
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case PCI_VENDOR_ID_JMICRON:
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if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 &&
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PCI_FUNC(dev->devfn) != 1)
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goto out;
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break;
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case PCI_VENDOR_ID_NS:
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if (dev->device == PCI_DEVICE_ID_NS_87410 &&
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(dev->class >> 8) != PCI_CLASS_STORAGE_IDE)
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goto out;
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break;
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}
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if (dev->vendor != PCI_VENDOR_ID_JMICRON) {
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u16 command;
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pci_read_config_word(dev, PCI_COMMAND, &command);
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if (!(command & PCI_COMMAND_IO)) {
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printk(KERN_INFO "Skipping disabled %s IDE "
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"controller.\n", d->name);
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goto out;
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}
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}
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ret = ide_setup_pci_device(dev, d);
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out:
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return ret;
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}
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static const struct pci_device_id generic_pci_tbl[] = {
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{ PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87410), 1 },
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{ PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), 2 },
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{ PCI_VDEVICE(HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), 3 },
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{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8673F), 4 },
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{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886A), 5 },
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{ PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886BF), 6 },
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{ PCI_VDEVICE(HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), 7 },
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{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C561), 8 },
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{ PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C558), 9 },
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#ifdef CONFIG_BLK_DEV_IDE_SATA
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{ PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237_SATA), 10 },
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#endif
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{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO), 11 },
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{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), 12 },
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{ PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), 13 },
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{ PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), 14 },
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/*
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* Must come last. If you add entries adjust
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* this table and generic_chipsets[] appropriately.
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*/
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{ PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 },
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{ 0, },
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};
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MODULE_DEVICE_TABLE(pci, generic_pci_tbl);
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static struct pci_driver driver = {
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.name = "PCI_IDE",
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.id_table = generic_pci_tbl,
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.probe = generic_init_one,
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};
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static int __init generic_ide_init(void)
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{
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return ide_pci_register_driver(&driver);
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}
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module_init(generic_ide_init);
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MODULE_AUTHOR("Andre Hedrick");
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MODULE_DESCRIPTION("PCI driver module for generic PCI IDE");
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MODULE_LICENSE("GPL");
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