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
  ...

1 files changed, 0 insertions, 267 deletions

diff --git a/drivers/ide/ide-xfer-mode.c b/drivers/ide/ide-xfer-mode.c
deleted file mode 100644
index 0b9709b489b7..000000000000
--- a/drivers/ide/ide-xfer-mode.c
+++ /dev/null
@@ -1,267 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/interrupt.h>
-#include <linux/ide.h>
-#include <linux/bitops.h>
-
-static const char *udma_str[] =
-	 { "UDMA/16", "UDMA/25",  "UDMA/33",  "UDMA/44",
-	   "UDMA/66", "UDMA/100", "UDMA/133", "UDMA7" };
-static const char *mwdma_str[] =
-	{ "MWDMA0", "MWDMA1", "MWDMA2", "MWDMA3", "MWDMA4" };
-static const char *swdma_str[] =
-	{ "SWDMA0", "SWDMA1", "SWDMA2" };
-static const char *pio_str[] =
-	{ "PIO0", "PIO1", "PIO2", "PIO3", "PIO4", "PIO5", "PIO6" };
-
-/**
- *	ide_xfer_verbose	-	return IDE mode names
- *	@mode: transfer mode
- *
- *	Returns a constant string giving the name of the mode
- *	requested.
- */
-
-const char *ide_xfer_verbose(u8 mode)
-{
-	const char *s;
-	u8 i = mode & 0xf;
-
-	if (mode >= XFER_UDMA_0 && mode <= XFER_UDMA_7)
-		s = udma_str[i];
-	else if (mode >= XFER_MW_DMA_0 && mode <= XFER_MW_DMA_4)
-		s = mwdma_str[i];
-	else if (mode >= XFER_SW_DMA_0 && mode <= XFER_SW_DMA_2)
-		s = swdma_str[i];
-	else if (mode >= XFER_PIO_0 && mode <= XFER_PIO_6)
-		s = pio_str[i & 0x7];
-	else if (mode == XFER_PIO_SLOW)
-		s = "PIO SLOW";
-	else
-		s = "XFER ERROR";
-
-	return s;
-}
-EXPORT_SYMBOL(ide_xfer_verbose);
-
-/**
- *	ide_get_best_pio_mode	-	get PIO mode from drive
- *	@drive: drive to consider
- *	@mode_wanted: preferred mode
- *	@max_mode: highest allowed mode
- *
- *	This routine returns the recommended PIO settings for a given drive,
- *	based on the drive->id information and the ide_pio_blacklist[].
- *
- *	Drive PIO mode is auto-selected if 255 is passed as mode_wanted.
- *	This is used by most chipset support modules when "auto-tuning".
- */
-
-static u8 ide_get_best_pio_mode(ide_drive_t *drive, u8 mode_wanted, u8 max_mode)
-{
-	u16 *id = drive->id;
-	int pio_mode = -1, overridden = 0;
-
-	if (mode_wanted != 255)
-		return min_t(u8, mode_wanted, max_mode);
-
-	if ((drive->hwif->host_flags & IDE_HFLAG_PIO_NO_BLACKLIST) == 0)
-		pio_mode = ide_scan_pio_blacklist((char *)&id[ATA_ID_PROD]);
-
-	if (pio_mode != -1) {
-		printk(KERN_INFO "%s: is on PIO blacklist\n", drive->name);
-	} else {
-		pio_mode = id[ATA_ID_OLD_PIO_MODES] >> 8;
-		if (pio_mode > 2) {	/* 2 is maximum allowed tPIO value */
-			pio_mode = 2;
-			overridden = 1;
-		}
-
-		if (id[ATA_ID_FIELD_VALID] & 2) {	      /* ATA2? */
-			if (ata_id_is_cfa(id) && (id[ATA_ID_CFA_MODES] & 7))
-				pio_mode = 4 + min_t(int, 2,
-						     id[ATA_ID_CFA_MODES] & 7);
-			else if (ata_id_has_iordy(id)) {
-				if (id[ATA_ID_PIO_MODES] & 7) {
-					overridden = 0;
-					if (id[ATA_ID_PIO_MODES] & 4)
-						pio_mode = 5;
-					else if (id[ATA_ID_PIO_MODES] & 2)
-						pio_mode = 4;
-					else
-						pio_mode = 3;
-				}
-			}
-		}
-
-		if (overridden)
-			printk(KERN_INFO "%s: tPIO > 2, assuming tPIO = 2\n",
-					 drive->name);
-	}
-
-	if (pio_mode > max_mode)
-		pio_mode = max_mode;
-
-	return pio_mode;
-}
-
-int ide_pio_need_iordy(ide_drive_t *drive, const u8 pio)
-{
-	/*
-	 * IORDY may lead to controller lock up on certain controllers
-	 * if the port is not occupied.
-	 */
-	if (pio == 0 && (drive->hwif->port_flags & IDE_PFLAG_PROBING))
-		return 0;
-	return ata_id_pio_need_iordy(drive->id, pio);
-}
-EXPORT_SYMBOL_GPL(ide_pio_need_iordy);
-
-int ide_set_pio_mode(ide_drive_t *drive, const u8 mode)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	const struct ide_port_ops *port_ops = hwif->port_ops;
-
-	if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
-		return 0;
-
-	if (port_ops == NULL || port_ops->set_pio_mode == NULL)
-		return -1;
-
-	/*
-	 * TODO: temporary hack for some legacy host drivers that didn't
-	 * set transfer mode on the device in ->set_pio_mode method...
-	 */
-	if (port_ops->set_dma_mode == NULL) {
-		drive->pio_mode = mode;
-		port_ops->set_pio_mode(hwif, drive);
-		return 0;
-	}
-
-	if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
-		if (ide_config_drive_speed(drive, mode))
-			return -1;
-		drive->pio_mode = mode;
-		port_ops->set_pio_mode(hwif, drive);
-		return 0;
-	} else {
-		drive->pio_mode = mode;
-		port_ops->set_pio_mode(hwif, drive);
-		return ide_config_drive_speed(drive, mode);
-	}
-}
-
-int ide_set_dma_mode(ide_drive_t *drive, const u8 mode)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	const struct ide_port_ops *port_ops = hwif->port_ops;
-
-	if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)
-		return 0;
-
-	if (port_ops == NULL || port_ops->set_dma_mode == NULL)
-		return -1;
-
-	if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) {
-		if (ide_config_drive_speed(drive, mode))
-			return -1;
-		drive->dma_mode = mode;
-		port_ops->set_dma_mode(hwif, drive);
-		return 0;
-	} else {
-		drive->dma_mode = mode;
-		port_ops->set_dma_mode(hwif, drive);
-		return ide_config_drive_speed(drive, mode);
-	}
-}
-EXPORT_SYMBOL_GPL(ide_set_dma_mode);
-
-/* req_pio == "255" for auto-tune */
-void ide_set_pio(ide_drive_t *drive, u8 req_pio)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	const struct ide_port_ops *port_ops = hwif->port_ops;
-	u8 host_pio, pio;
-
-	if (port_ops == NULL || port_ops->set_pio_mode == NULL ||
-	    (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
-		return;
-
-	BUG_ON(hwif->pio_mask == 0x00);
-
-	host_pio = fls(hwif->pio_mask) - 1;
-
-	pio = ide_get_best_pio_mode(drive, req_pio, host_pio);
-
-	/*
-	 * TODO:
-	 * - report device max PIO mode
-	 * - check req_pio != 255 against device max PIO mode
-	 */
-	printk(KERN_DEBUG "%s: host max PIO%d wanted PIO%d%s selected PIO%d\n",
-			  drive->name, host_pio, req_pio,
-			  req_pio == 255 ? "(auto-tune)" : "", pio);
-
-	(void)ide_set_pio_mode(drive, XFER_PIO_0 + pio);
-}
-EXPORT_SYMBOL_GPL(ide_set_pio);
-
-/**
- *	ide_rate_filter		-	filter transfer mode
- *	@drive: IDE device
- *	@speed: desired speed
- *
- *	Given the available transfer modes this function returns
- *	the best available speed at or below the speed requested.
- *
- *	TODO: check device PIO capabilities
- */
-
-static u8 ide_rate_filter(ide_drive_t *drive, u8 speed)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	u8 mode = ide_find_dma_mode(drive, speed);
-
-	if (mode == 0) {
-		if (hwif->pio_mask)
-			mode = fls(hwif->pio_mask) - 1 + XFER_PIO_0;
-		else
-			mode = XFER_PIO_4;
-	}
-
-/*	printk("%s: mode 0x%02x, speed 0x%02x\n", __func__, mode, speed); */
-
-	return min(speed, mode);
-}
-
-/**
- *	ide_set_xfer_rate	-	set transfer rate
- *	@drive: drive to set
- *	@rate: speed to attempt to set
- *
- *	General helper for setting the speed of an IDE device. This
- *	function knows about user enforced limits from the configuration
- *	which ->set_pio_mode/->set_dma_mode does not.
- */
-
-int ide_set_xfer_rate(ide_drive_t *drive, u8 rate)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	const struct ide_port_ops *port_ops = hwif->port_ops;
-
-	if (port_ops == NULL || port_ops->set_dma_mode == NULL ||
-	    (hwif->host_flags & IDE_HFLAG_NO_SET_MODE))
-		return -1;
-
-	rate = ide_rate_filter(drive, rate);
-
-	BUG_ON(rate < XFER_PIO_0);
-
-	if (rate >= XFER_PIO_0 && rate <= XFER_PIO_6)
-		return ide_set_pio_mode(drive, rate);
-
-	return ide_set_dma_mode(drive, rate);
-}