ide: move ide_init_port_data() and friends to ide-probe.c
* Move IDE_DEFAULT_MAX_FAILURES to <linux/ide.h>. * Move ide_cfg_mtx, ide_hwif_to_major[], ide_port_init_devices_data(), ide_init_port_data(), ide_init_port_hw() and ide_unregister() to ide-probe.c from ide.c. * Make ide_unregister(), ide_init_port_data(), ide_init_port_hw() and ide_cfg_mtx static. While at it: * Remove stale ide_init_port_data() documentation and ide_lock extern. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz
parent
ff670e632e
commit
b40d1b88f1
3 changed files with 136 additions and 154 deletions
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@ -918,6 +918,8 @@ static int ide_init_queue(ide_drive_t *drive)
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return 0;
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}
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static DEFINE_MUTEX(ide_cfg_mtx);
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/*
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* For any present drive:
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* - allocate the block device queue
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@ -1273,6 +1275,69 @@ static void ide_port_cable_detect(ide_hwif_t *hwif)
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}
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}
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static const u8 ide_hwif_to_major[] =
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{ IDE0_MAJOR, IDE1_MAJOR, IDE2_MAJOR, IDE3_MAJOR, IDE4_MAJOR,
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IDE5_MAJOR, IDE6_MAJOR, IDE7_MAJOR, IDE8_MAJOR, IDE9_MAJOR };
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static void ide_port_init_devices_data(ide_hwif_t *hwif)
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{
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int unit;
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for (unit = 0; unit < MAX_DRIVES; ++unit) {
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ide_drive_t *drive = &hwif->drives[unit];
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u8 j = (hwif->index * MAX_DRIVES) + unit;
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memset(drive, 0, sizeof(*drive));
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drive->media = ide_disk;
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drive->select = (unit << 4) | ATA_DEVICE_OBS;
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drive->hwif = hwif;
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drive->ready_stat = ATA_DRDY;
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drive->bad_wstat = BAD_W_STAT;
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drive->special.b.recalibrate = 1;
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drive->special.b.set_geometry = 1;
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drive->name[0] = 'h';
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drive->name[1] = 'd';
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drive->name[2] = 'a' + j;
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drive->max_failures = IDE_DEFAULT_MAX_FAILURES;
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INIT_LIST_HEAD(&drive->list);
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init_completion(&drive->gendev_rel_comp);
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}
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}
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static void ide_init_port_data(ide_hwif_t *hwif, unsigned int index)
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{
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/* bulk initialize hwif & drive info with zeros */
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memset(hwif, 0, sizeof(ide_hwif_t));
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/* fill in any non-zero initial values */
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hwif->index = index;
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hwif->major = ide_hwif_to_major[index];
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hwif->name[0] = 'i';
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hwif->name[1] = 'd';
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hwif->name[2] = 'e';
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hwif->name[3] = '0' + index;
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init_completion(&hwif->gendev_rel_comp);
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hwif->tp_ops = &default_tp_ops;
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ide_port_init_devices_data(hwif);
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}
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static void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw)
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{
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memcpy(&hwif->io_ports, &hw->io_ports, sizeof(hwif->io_ports));
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hwif->irq = hw->irq;
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hwif->chipset = hw->chipset;
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hwif->dev = hw->dev;
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hwif->gendev.parent = hw->parent ? hw->parent : hw->dev;
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hwif->ack_intr = hw->ack_intr;
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hwif->config_data = hw->config;
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}
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static unsigned int ide_indexes;
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/**
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@ -1503,6 +1568,76 @@ int ide_host_add(const struct ide_port_info *d, hw_regs_t **hws,
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}
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EXPORT_SYMBOL_GPL(ide_host_add);
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static void __ide_port_unregister_devices(ide_hwif_t *hwif)
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{
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int i;
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for (i = 0; i < MAX_DRIVES; i++) {
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ide_drive_t *drive = &hwif->drives[i];
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if (drive->dev_flags & IDE_DFLAG_PRESENT) {
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device_unregister(&drive->gendev);
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wait_for_completion(&drive->gendev_rel_comp);
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}
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}
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}
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void ide_port_unregister_devices(ide_hwif_t *hwif)
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{
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mutex_lock(&ide_cfg_mtx);
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__ide_port_unregister_devices(hwif);
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hwif->present = 0;
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ide_port_init_devices_data(hwif);
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mutex_unlock(&ide_cfg_mtx);
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}
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EXPORT_SYMBOL_GPL(ide_port_unregister_devices);
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/**
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* ide_unregister - free an IDE interface
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* @hwif: IDE interface
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*
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* Perform the final unregister of an IDE interface.
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*
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* Locking:
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* The caller must not hold the IDE locks.
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*
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* It is up to the caller to be sure there is no pending I/O here,
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* and that the interface will not be reopened (present/vanishing
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* locking isn't yet done BTW).
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*/
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static void ide_unregister(ide_hwif_t *hwif)
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{
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BUG_ON(in_interrupt());
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BUG_ON(irqs_disabled());
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mutex_lock(&ide_cfg_mtx);
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if (hwif->present) {
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__ide_port_unregister_devices(hwif);
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hwif->present = 0;
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}
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ide_proc_unregister_port(hwif);
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free_irq(hwif->irq, hwif);
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device_unregister(hwif->portdev);
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device_unregister(&hwif->gendev);
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wait_for_completion(&hwif->gendev_rel_comp);
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/*
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* Remove us from the kernel's knowledge
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*/
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blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS);
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kfree(hwif->sg_table);
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unregister_blkdev(hwif->major, hwif->name);
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ide_release_dma_engine(hwif);
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mutex_unlock(&ide_cfg_mtx);
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}
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void ide_host_free(struct ide_host *host)
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{
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ide_hwif_t *hwif;
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@ -60,154 +60,8 @@
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#include <linux/completion.h>
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#include <linux/device.h>
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/* default maximum number of failures */
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#define IDE_DEFAULT_MAX_FAILURES 1
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struct class *ide_port_class;
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static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR,
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IDE2_MAJOR, IDE3_MAJOR,
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IDE4_MAJOR, IDE5_MAJOR,
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IDE6_MAJOR, IDE7_MAJOR,
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IDE8_MAJOR, IDE9_MAJOR };
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DEFINE_MUTEX(ide_cfg_mtx);
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static void ide_port_init_devices_data(ide_hwif_t *);
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/*
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* Do not even *think* about calling this!
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*/
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void ide_init_port_data(ide_hwif_t *hwif, unsigned int index)
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{
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/* bulk initialize hwif & drive info with zeros */
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memset(hwif, 0, sizeof(ide_hwif_t));
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/* fill in any non-zero initial values */
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hwif->index = index;
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hwif->major = ide_hwif_to_major[index];
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hwif->name[0] = 'i';
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hwif->name[1] = 'd';
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hwif->name[2] = 'e';
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hwif->name[3] = '0' + index;
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init_completion(&hwif->gendev_rel_comp);
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hwif->tp_ops = &default_tp_ops;
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ide_port_init_devices_data(hwif);
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}
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static void ide_port_init_devices_data(ide_hwif_t *hwif)
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{
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int unit;
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for (unit = 0; unit < MAX_DRIVES; ++unit) {
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ide_drive_t *drive = &hwif->drives[unit];
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u8 j = (hwif->index * MAX_DRIVES) + unit;
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memset(drive, 0, sizeof(*drive));
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drive->media = ide_disk;
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drive->select = (unit << 4) | ATA_DEVICE_OBS;
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drive->hwif = hwif;
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drive->ready_stat = ATA_DRDY;
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drive->bad_wstat = BAD_W_STAT;
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drive->special.b.recalibrate = 1;
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drive->special.b.set_geometry = 1;
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drive->name[0] = 'h';
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drive->name[1] = 'd';
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drive->name[2] = 'a' + j;
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drive->max_failures = IDE_DEFAULT_MAX_FAILURES;
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INIT_LIST_HEAD(&drive->list);
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init_completion(&drive->gendev_rel_comp);
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}
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}
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static void __ide_port_unregister_devices(ide_hwif_t *hwif)
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{
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int i;
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for (i = 0; i < MAX_DRIVES; i++) {
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ide_drive_t *drive = &hwif->drives[i];
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if (drive->dev_flags & IDE_DFLAG_PRESENT) {
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device_unregister(&drive->gendev);
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wait_for_completion(&drive->gendev_rel_comp);
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}
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}
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}
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void ide_port_unregister_devices(ide_hwif_t *hwif)
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{
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mutex_lock(&ide_cfg_mtx);
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__ide_port_unregister_devices(hwif);
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hwif->present = 0;
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ide_port_init_devices_data(hwif);
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mutex_unlock(&ide_cfg_mtx);
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}
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EXPORT_SYMBOL_GPL(ide_port_unregister_devices);
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/**
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* ide_unregister - free an IDE interface
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* @hwif: IDE interface
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*
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* Perform the final unregister of an IDE interface.
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*
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* Locking:
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* The caller must not hold the IDE locks.
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*
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* It is up to the caller to be sure there is no pending I/O here,
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* and that the interface will not be reopened (present/vanishing
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* locking isn't yet done BTW).
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*/
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void ide_unregister(ide_hwif_t *hwif)
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{
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BUG_ON(in_interrupt());
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BUG_ON(irqs_disabled());
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mutex_lock(&ide_cfg_mtx);
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if (hwif->present) {
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__ide_port_unregister_devices(hwif);
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hwif->present = 0;
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}
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ide_proc_unregister_port(hwif);
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free_irq(hwif->irq, hwif);
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device_unregister(hwif->portdev);
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device_unregister(&hwif->gendev);
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wait_for_completion(&hwif->gendev_rel_comp);
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/*
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* Remove us from the kernel's knowledge
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*/
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blk_unregister_region(MKDEV(hwif->major, 0), MAX_DRIVES<<PARTN_BITS);
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kfree(hwif->sg_table);
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unregister_blkdev(hwif->major, hwif->name);
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ide_release_dma_engine(hwif);
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mutex_unlock(&ide_cfg_mtx);
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}
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void ide_init_port_hw(ide_hwif_t *hwif, hw_regs_t *hw)
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{
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memcpy(&hwif->io_ports, &hw->io_ports, sizeof(hwif->io_ports));
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hwif->irq = hw->irq;
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hwif->chipset = hw->chipset;
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hwif->dev = hw->dev;
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hwif->gendev.parent = hw->parent ? hw->parent : hw->dev;
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hwif->ack_intr = hw->ack_intr;
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hwif->config_data = hw->config;
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}
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/*
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* Locks for IDE setting functionality
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*/
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@ -37,6 +37,7 @@ typedef unsigned char byte; /* used everywhere */
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/*
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* Probably not wise to fiddle with these
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*/
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#define IDE_DEFAULT_MAX_FAILURES 1
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#define ERROR_MAX 8 /* Max read/write errors per sector */
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#define ERROR_RESET 3 /* Reset controller every 4th retry */
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#define ERROR_RECAL 1 /* Recalibrate every 2nd retry */
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@ -184,9 +185,6 @@ typedef struct hw_regs_s {
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unsigned long config;
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} hw_regs_t;
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void ide_init_port_data(struct hwif_s *, unsigned int);
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void ide_init_port_hw(struct hwif_s *, hw_regs_t *);
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static inline void ide_std_init_ports(hw_regs_t *hw,
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unsigned long io_addr,
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unsigned long ctl_addr)
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@ -1506,8 +1504,6 @@ static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; }
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static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {}
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#endif
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void ide_unregister(ide_hwif_t *);
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void ide_register_region(struct gendisk *);
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void ide_unregister_region(struct gendisk *);
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@ -1592,9 +1588,6 @@ static inline void ide_set_max_pio(ide_drive_t *drive)
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ide_set_pio(drive, 255);
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}
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extern spinlock_t ide_lock;
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extern struct mutex ide_cfg_mtx;
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#define local_irq_set(flags) do { local_save_flags((flags)); local_irq_enable_in_hardirq(); } while (0)
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char *ide_media_string(ide_drive_t *);
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