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authorLinus Torvalds <torvalds@linux-foundation.org>2021-06-28 10:39:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-06-28 10:39:46 -0700
commit43bd8a67cd10e9526656e2bc160e52920bd9e43c (patch)
treeefd95e1d1a6cf39de81c5eafc2760fdb019e2247 /drivers/ide/ide.c
parent66d9282523b3228183b14d9f812872dd2620704d (diff)
parent1af11d098db18bfda5168dc407513726e1b1bdb3 (diff)
Merge tag 'for-5.14/libata-2021-06-27' of git://git.kernel.dk/linux-block
Pull libata updates from Jens Axboe: "The big change in this round is that we're finally in a position where we can sanely remove the old drivers/ide/ code, as libata covers everything we need by now. This is exciting for two reasons: 1) we delete a lot of legacy code that doesn't really meet the standards we have today, and 2) it enables us to clean up various bits in the block layer that exist only because of the old IDE code. Outside of that, just a few minor fixes here, fixups for warnings, etc" * tag 'for-5.14/libata-2021-06-27' of git://git.kernel.dk/linux-block: (29 commits) ata: rb532_cf: remove redundant codes ide: remove the legacy ide driver m68k: use libata instead of the legacy ide driver ARM: disable CONFIG_IDE in pxa_defconfig ARM: disable CONFIG_IDE in footbridge_defconfig alpha: use libata instead of the legacy ide driver pata_cypress: add a module option to disable BM-DMA ata: pata_macio: Avoid overwriting initialised field in 'pata_macio_sht' ata: pata_serverworks: Avoid overwriting initialised field in 'serverworks_osb4_sht ata: pata_sc1200: sc1200_sht'Avoid overwriting initialised field in ' ata: pata_cs5530: Avoid overwriting initialised field in 'cs5530_sht' ata: pata_cs5520: Avoid overwriting initialised field in 'cs5520_sht' ata: pata_atiixp: Avoid overwriting initialised field in 'atiixp_sht' ata: sata_nv: Do not over-write initialise fields in 'nv_adma_sht' and 'nv_swncq_sht' ata: sata_mv: Do not over-write initialise fields in 'mv6_sht' ata: sata_sil24: Do not over-write initialise fields in 'sil24_sht' ata: ahci: Ensure initialised fields are not overwritten in AHCI_SHT() ata: include: libata: Move fields commonly over-written to separate MACRO ahci: Add support for Dell S140 and later controllers ata: ahci_sunxi: Disable DIPM ...
Diffstat (limited to 'drivers/ide/ide.c')
-rw-r--r--drivers/ide/ide.c415
1 files changed, 0 insertions, 415 deletions
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
deleted file mode 100644
index 9a9c64fd1032..000000000000
--- a/drivers/ide/ide.c
+++ /dev/null
@@ -1,415 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 1994-1998 Linus Torvalds & authors (see below)
- * Copyright (C) 2003-2005, 2007 Bartlomiej Zolnierkiewicz
- */
-
-/*
- * Mostly written by Mark Lord <mlord@pobox.com>
- * and Gadi Oxman <gadio@netvision.net.il>
- * and Andre Hedrick <andre@linux-ide.org>
- *
- * See linux/MAINTAINERS for address of current maintainer.
- *
- * This is the multiple IDE interface driver, as evolved from hd.c.
- * It supports up to MAX_HWIFS IDE interfaces, on one or more IRQs
- * (usually 14 & 15).
- * There can be up to two drives per interface, as per the ATA-2 spec.
- *
- * ...
- *
- * From hd.c:
- * |
- * | It traverses the request-list, using interrupts to jump between functions.
- * | As nearly all functions can be called within interrupts, we may not sleep.
- * | Special care is recommended. Have Fun!
- * |
- * | modified by Drew Eckhardt to check nr of hd's from the CMOS.
- * |
- * | Thanks to Branko Lankester, lankeste@fwi.uva.nl, who found a bug
- * | in the early extended-partition checks and added DM partitions.
- * |
- * | Early work on error handling by Mika Liljeberg (liljeber@cs.Helsinki.FI).
- * |
- * | IRQ-unmask, drive-id, multiple-mode, support for ">16 heads",
- * | and general streamlining by Mark Lord (mlord@pobox.com).
- *
- * October, 1994 -- Complete line-by-line overhaul for linux 1.1.x, by:
- *
- * Mark Lord (mlord@pobox.com) (IDE Perf.Pkg)
- * Delman Lee (delman@ieee.org) ("Mr. atdisk2")
- * Scott Snyder (snyder@fnald0.fnal.gov) (ATAPI IDE cd-rom)
- *
- * This was a rewrite of just about everything from hd.c, though some original
- * code is still sprinkled about. Think of it as a major evolution, with
- * inspiration from lots of linux users, esp. hamish@zot.apana.org.au
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/major.h>
-#include <linux/errno.h>
-#include <linux/genhd.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-#include <linux/hdreg.h>
-#include <linux/completion.h>
-#include <linux/device.h>
-
-struct class *ide_port_class;
-
-/**
- * ide_device_get - get an additional reference to a ide_drive_t
- * @drive: device to get a reference to
- *
- * Gets a reference to the ide_drive_t and increments the use count of the
- * underlying LLDD module.
- */
-int ide_device_get(ide_drive_t *drive)
-{
- struct device *host_dev;
- struct module *module;
-
- if (!get_device(&drive->gendev))
- return -ENXIO;
-
- host_dev = drive->hwif->host->dev[0];
- module = host_dev ? host_dev->driver->owner : NULL;
-
- if (module && !try_module_get(module)) {
- put_device(&drive->gendev);
- return -ENXIO;
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(ide_device_get);
-
-/**
- * ide_device_put - release a reference to a ide_drive_t
- * @drive: device to release a reference on
- *
- * Release a reference to the ide_drive_t and decrements the use count of
- * the underlying LLDD module.
- */
-void ide_device_put(ide_drive_t *drive)
-{
-#ifdef CONFIG_MODULE_UNLOAD
- struct device *host_dev = drive->hwif->host->dev[0];
- struct module *module = host_dev ? host_dev->driver->owner : NULL;
-
- module_put(module);
-#endif
- put_device(&drive->gendev);
-}
-EXPORT_SYMBOL_GPL(ide_device_put);
-
-static int ide_bus_match(struct device *dev, struct device_driver *drv)
-{
- return 1;
-}
-
-static int ide_uevent(struct device *dev, struct kobj_uevent_env *env)
-{
- ide_drive_t *drive = to_ide_device(dev);
-
- add_uevent_var(env, "MEDIA=%s", ide_media_string(drive));
- add_uevent_var(env, "DRIVENAME=%s", drive->name);
- add_uevent_var(env, "MODALIAS=ide:m-%s", ide_media_string(drive));
- return 0;
-}
-
-static int generic_ide_probe(struct device *dev)
-{
- ide_drive_t *drive = to_ide_device(dev);
- struct ide_driver *drv = to_ide_driver(dev->driver);
-
- return drv->probe ? drv->probe(drive) : -ENODEV;
-}
-
-static int generic_ide_remove(struct device *dev)
-{
- ide_drive_t *drive = to_ide_device(dev);
- struct ide_driver *drv = to_ide_driver(dev->driver);
-
- if (drv->remove)
- drv->remove(drive);
-
- return 0;
-}
-
-static void generic_ide_shutdown(struct device *dev)
-{
- ide_drive_t *drive = to_ide_device(dev);
- struct ide_driver *drv = to_ide_driver(dev->driver);
-
- if (dev->driver && drv->shutdown)
- drv->shutdown(drive);
-}
-
-struct bus_type ide_bus_type = {
- .name = "ide",
- .match = ide_bus_match,
- .uevent = ide_uevent,
- .probe = generic_ide_probe,
- .remove = generic_ide_remove,
- .shutdown = generic_ide_shutdown,
- .dev_groups = ide_dev_groups,
- .suspend = generic_ide_suspend,
- .resume = generic_ide_resume,
-};
-
-EXPORT_SYMBOL_GPL(ide_bus_type);
-
-int ide_vlb_clk;
-EXPORT_SYMBOL_GPL(ide_vlb_clk);
-
-module_param_named(vlb_clock, ide_vlb_clk, int, 0);
-MODULE_PARM_DESC(vlb_clock, "VLB clock frequency (in MHz)");
-
-int ide_pci_clk;
-EXPORT_SYMBOL_GPL(ide_pci_clk);
-
-module_param_named(pci_clock, ide_pci_clk, int, 0);
-MODULE_PARM_DESC(pci_clock, "PCI bus clock frequency (in MHz)");
-
-static int ide_set_dev_param_mask(const char *s, const struct kernel_param *kp)
-{
- unsigned int a, b, i, j = 1;
- unsigned int *dev_param_mask = (unsigned int *)kp->arg;
-
- /* controller . device (0 or 1) [ : 1 (set) | 0 (clear) ] */
- if (sscanf(s, "%u.%u:%u", &a, &b, &j) != 3 &&
- sscanf(s, "%u.%u", &a, &b) != 2)
- return -EINVAL;
-
- i = a * MAX_DRIVES + b;
-
- if (i >= MAX_HWIFS * MAX_DRIVES || j > 1)
- return -EINVAL;
-
- if (j)
- *dev_param_mask |= (1 << i);
- else
- *dev_param_mask &= ~(1 << i);
-
- return 0;
-}
-
-static const struct kernel_param_ops param_ops_ide_dev_mask = {
- .set = ide_set_dev_param_mask
-};
-
-#define param_check_ide_dev_mask(name, p) param_check_uint(name, p)
-
-static unsigned int ide_nodma;
-
-module_param_named(nodma, ide_nodma, ide_dev_mask, 0);
-MODULE_PARM_DESC(nodma, "disallow DMA for a device");
-
-static unsigned int ide_noflush;
-
-module_param_named(noflush, ide_noflush, ide_dev_mask, 0);
-MODULE_PARM_DESC(noflush, "disable flush requests for a device");
-
-static unsigned int ide_nohpa;
-
-module_param_named(nohpa, ide_nohpa, ide_dev_mask, 0);
-MODULE_PARM_DESC(nohpa, "disable Host Protected Area for a device");
-
-static unsigned int ide_noprobe;
-
-module_param_named(noprobe, ide_noprobe, ide_dev_mask, 0);
-MODULE_PARM_DESC(noprobe, "skip probing for a device");
-
-static unsigned int ide_nowerr;
-
-module_param_named(nowerr, ide_nowerr, ide_dev_mask, 0);
-MODULE_PARM_DESC(nowerr, "ignore the ATA_DF bit for a device");
-
-static unsigned int ide_cdroms;
-
-module_param_named(cdrom, ide_cdroms, ide_dev_mask, 0);
-MODULE_PARM_DESC(cdrom, "force device as a CD-ROM");
-
-struct chs_geom {
- unsigned int cyl;
- u8 head;
- u8 sect;
-};
-
-static unsigned int ide_disks;
-static struct chs_geom ide_disks_chs[MAX_HWIFS * MAX_DRIVES];
-
-static int ide_set_disk_chs(const char *str, const struct kernel_param *kp)
-{
- unsigned int a, b, c = 0, h = 0, s = 0, i, j = 1;
-
- /* controller . device (0 or 1) : Cylinders , Heads , Sectors */
- /* controller . device (0 or 1) : 1 (use CHS) | 0 (ignore CHS) */
- if (sscanf(str, "%u.%u:%u,%u,%u", &a, &b, &c, &h, &s) != 5 &&
- sscanf(str, "%u.%u:%u", &a, &b, &j) != 3)
- return -EINVAL;
-
- i = a * MAX_DRIVES + b;
-
- if (i >= MAX_HWIFS * MAX_DRIVES || j > 1)
- return -EINVAL;
-
- if (c > INT_MAX || h > 255 || s > 255)
- return -EINVAL;
-
- if (j)
- ide_disks |= (1 << i);
- else
- ide_disks &= ~(1 << i);
-
- ide_disks_chs[i].cyl = c;
- ide_disks_chs[i].head = h;
- ide_disks_chs[i].sect = s;
-
- return 0;
-}
-
-module_param_call(chs, ide_set_disk_chs, NULL, NULL, 0);
-MODULE_PARM_DESC(chs, "force device as a disk (using CHS)");
-
-static void ide_dev_apply_params(ide_drive_t *drive, u8 unit)
-{
- int i = drive->hwif->index * MAX_DRIVES + unit;
-
- if (ide_nodma & (1 << i)) {
- printk(KERN_INFO "ide: disallowing DMA for %s\n", drive->name);
- drive->dev_flags |= IDE_DFLAG_NODMA;
- }
- if (ide_noflush & (1 << i)) {
- printk(KERN_INFO "ide: disabling flush requests for %s\n",
- drive->name);
- drive->dev_flags |= IDE_DFLAG_NOFLUSH;
- }
- if (ide_nohpa & (1 << i)) {
- printk(KERN_INFO "ide: disabling Host Protected Area for %s\n",
- drive->name);
- drive->dev_flags |= IDE_DFLAG_NOHPA;
- }
- if (ide_noprobe & (1 << i)) {
- printk(KERN_INFO "ide: skipping probe for %s\n", drive->name);
- drive->dev_flags |= IDE_DFLAG_NOPROBE;
- }
- if (ide_nowerr & (1 << i)) {
- printk(KERN_INFO "ide: ignoring the ATA_DF bit for %s\n",
- drive->name);
- drive->bad_wstat = BAD_R_STAT;
- }
- if (ide_cdroms & (1 << i)) {
- printk(KERN_INFO "ide: forcing %s as a CD-ROM\n", drive->name);
- drive->dev_flags |= IDE_DFLAG_PRESENT;
- drive->media = ide_cdrom;
- /* an ATAPI device ignores DRDY */
- drive->ready_stat = 0;
- }
- if (ide_disks & (1 << i)) {
- drive->cyl = drive->bios_cyl = ide_disks_chs[i].cyl;
- drive->head = drive->bios_head = ide_disks_chs[i].head;
- drive->sect = drive->bios_sect = ide_disks_chs[i].sect;
-
- printk(KERN_INFO "ide: forcing %s as a disk (%d/%d/%d)\n",
- drive->name,
- drive->cyl, drive->head, drive->sect);
-
- drive->dev_flags |= IDE_DFLAG_FORCED_GEOM | IDE_DFLAG_PRESENT;
- drive->media = ide_disk;
- drive->ready_stat = ATA_DRDY;
- }
-}
-
-static unsigned int ide_ignore_cable;
-
-static int ide_set_ignore_cable(const char *s, const struct kernel_param *kp)
-{
- int i, j = 1;
-
- /* controller (ignore) */
- /* controller : 1 (ignore) | 0 (use) */
- if (sscanf(s, "%d:%d", &i, &j) != 2 && sscanf(s, "%d", &i) != 1)
- return -EINVAL;
-
- if (i >= MAX_HWIFS || j < 0 || j > 1)
- return -EINVAL;
-
- if (j)
- ide_ignore_cable |= (1 << i);
- else
- ide_ignore_cable &= ~(1 << i);
-
- return 0;
-}
-
-module_param_call(ignore_cable, ide_set_ignore_cable, NULL, NULL, 0);
-MODULE_PARM_DESC(ignore_cable, "ignore cable detection");
-
-void ide_port_apply_params(ide_hwif_t *hwif)
-{
- ide_drive_t *drive;
- int i;
-
- if (ide_ignore_cable & (1 << hwif->index)) {
- printk(KERN_INFO "ide: ignoring cable detection for %s\n",
- hwif->name);
- hwif->cbl = ATA_CBL_PATA40_SHORT;
- }
-
- ide_port_for_each_dev(i, drive, hwif)
- ide_dev_apply_params(drive, i);
-}
-
-/*
- * This is gets invoked once during initialization, to set *everything* up
- */
-static int __init ide_init(void)
-{
- int ret;
-
- printk(KERN_INFO "Uniform Multi-Platform E-IDE driver\n");
-
- ret = bus_register(&ide_bus_type);
- if (ret < 0) {
- printk(KERN_WARNING "IDE: bus_register error: %d\n", ret);
- return ret;
- }
-
- ide_port_class = class_create(THIS_MODULE, "ide_port");
- if (IS_ERR(ide_port_class)) {
- ret = PTR_ERR(ide_port_class);
- goto out_port_class;
- }
-
- ide_acpi_init();
-
- proc_ide_create();
-
- return 0;
-
-out_port_class:
- bus_unregister(&ide_bus_type);
-
- return ret;
-}
-
-static void __exit ide_exit(void)
-{
- proc_ide_destroy();
-
- class_destroy(ide_port_class);
-
- bus_unregister(&ide_bus_type);
-}
-
-module_init(ide_init);
-module_exit(ide_exit);
-
-MODULE_LICENSE("GPL");