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authorLinus Torvalds <torvalds@linux-foundation.org>2021-06-28 20:39:46 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-06-28 20:39:46 +0300
commit43bd8a67cd10e9526656e2bc160e52920bd9e43c (patch)
treeefd95e1d1a6cf39de81c5eafc2760fdb019e2247 /drivers/ide/ide-devsets.c
parent66d9282523b3228183b14d9f812872dd2620704d (diff)
parent1af11d098db18bfda5168dc407513726e1b1bdb3 (diff)
downloadlinux-43bd8a67cd10e9526656e2bc160e52920bd9e43c.tar.xz
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-devsets.c')
-rw-r--r--drivers/ide/ide-devsets.c192
1 files changed, 0 insertions, 192 deletions
diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c
deleted file mode 100644
index ca1d4b3d3878..000000000000
--- a/drivers/ide/ide-devsets.c
+++ /dev/null
@@ -1,192 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-
-#include <linux/kernel.h>
-#include <linux/gfp.h>
-#include <linux/ide.h>
-
-DEFINE_MUTEX(ide_setting_mtx);
-
-ide_devset_get(io_32bit, io_32bit);
-
-static int set_io_32bit(ide_drive_t *drive, int arg)
-{
- if (drive->dev_flags & IDE_DFLAG_NO_IO_32BIT)
- return -EPERM;
-
- if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1))
- return -EINVAL;
-
- drive->io_32bit = arg;
-
- return 0;
-}
-
-ide_devset_get_flag(ksettings, IDE_DFLAG_KEEP_SETTINGS);
-
-static int set_ksettings(ide_drive_t *drive, int arg)
-{
- if (arg < 0 || arg > 1)
- return -EINVAL;
-
- if (arg)
- drive->dev_flags |= IDE_DFLAG_KEEP_SETTINGS;
- else
- drive->dev_flags &= ~IDE_DFLAG_KEEP_SETTINGS;
-
- return 0;
-}
-
-ide_devset_get_flag(using_dma, IDE_DFLAG_USING_DMA);
-
-static int set_using_dma(ide_drive_t *drive, int arg)
-{
-#ifdef CONFIG_BLK_DEV_IDEDMA
- int err = -EPERM;
-
- if (arg < 0 || arg > 1)
- return -EINVAL;
-
- if (ata_id_has_dma(drive->id) == 0)
- goto out;
-
- if (drive->hwif->dma_ops == NULL)
- goto out;
-
- err = 0;
-
- if (arg) {
- if (ide_set_dma(drive))
- err = -EIO;
- } else
- ide_dma_off(drive);
-
-out:
- return err;
-#else
- if (arg < 0 || arg > 1)
- return -EINVAL;
-
- return -EPERM;
-#endif
-}
-
-/*
- * handle HDIO_SET_PIO_MODE ioctl abusers here, eventually it will go away
- */
-static int set_pio_mode_abuse(ide_hwif_t *hwif, u8 req_pio)
-{
- switch (req_pio) {
- case 202:
- case 201:
- case 200:
- case 102:
- case 101:
- case 100:
- return (hwif->host_flags & IDE_HFLAG_ABUSE_DMA_MODES) ? 1 : 0;
- case 9:
- case 8:
- return (hwif->host_flags & IDE_HFLAG_ABUSE_PREFETCH) ? 1 : 0;
- case 7:
- case 6:
- return (hwif->host_flags & IDE_HFLAG_ABUSE_FAST_DEVSEL) ? 1 : 0;
- default:
- return 0;
- }
-}
-
-static int set_pio_mode(ide_drive_t *drive, int arg)
-{
- ide_hwif_t *hwif = drive->hwif;
- const struct ide_port_ops *port_ops = hwif->port_ops;
-
- if (arg < 0 || arg > 255)
- return -EINVAL;
-
- if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
- (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
- return -ENOSYS;
-
- if (set_pio_mode_abuse(drive->hwif, arg)) {
- drive->pio_mode = arg + XFER_PIO_0;
-
- if (arg == 8 || arg == 9) {
- unsigned long flags;
-
- /* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */
- spin_lock_irqsave(&hwif->lock, flags);
- port_ops->set_pio_mode(hwif, drive);
- spin_unlock_irqrestore(&hwif->lock, flags);
- } else
- port_ops->set_pio_mode(hwif, drive);
- } else {
- int keep_dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
-
- ide_set_pio(drive, arg);
-
- if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) {
- if (keep_dma)
- ide_dma_on(drive);
- }
- }
-
- return 0;
-}
-
-ide_devset_get_flag(unmaskirq, IDE_DFLAG_UNMASK);
-
-static int set_unmaskirq(ide_drive_t *drive, int arg)
-{
- if (drive->dev_flags & IDE_DFLAG_NO_UNMASK)
- return -EPERM;
-
- if (arg < 0 || arg > 1)
- return -EINVAL;
-
- if (arg)
- drive->dev_flags |= IDE_DFLAG_UNMASK;
- else
- drive->dev_flags &= ~IDE_DFLAG_UNMASK;
-
- return 0;
-}
-
-ide_ext_devset_rw_sync(io_32bit, io_32bit);
-ide_ext_devset_rw_sync(keepsettings, ksettings);
-ide_ext_devset_rw_sync(unmaskirq, unmaskirq);
-ide_ext_devset_rw_sync(using_dma, using_dma);
-__IDE_DEVSET(pio_mode, DS_SYNC, NULL, set_pio_mode);
-
-int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting,
- int arg)
-{
- struct request_queue *q = drive->queue;
- struct request *rq;
- int ret = 0;
-
- if (!(setting->flags & DS_SYNC))
- return setting->set(drive, arg);
-
- rq = blk_get_request(q, REQ_OP_DRV_IN, 0);
- ide_req(rq)->type = ATA_PRIV_MISC;
- scsi_req(rq)->cmd_len = 5;
- scsi_req(rq)->cmd[0] = REQ_DEVSET_EXEC;
- *(int *)&scsi_req(rq)->cmd[1] = arg;
- ide_req(rq)->special = setting->set;
-
- blk_execute_rq(NULL, rq, 0);
- ret = scsi_req(rq)->result;
- blk_put_request(rq);
-
- return ret;
-}
-
-ide_startstop_t ide_do_devset(ide_drive_t *drive, struct request *rq)
-{
- int err, (*setfunc)(ide_drive_t *, int) = ide_req(rq)->special;
-
- err = setfunc(drive, *(int *)&scsi_req(rq)->cmd[1]);
- if (err)
- scsi_req(rq)->result = err;
- ide_complete_rq(drive, 0, blk_rq_bytes(rq));
- return ide_stopped;
-}