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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-io-std.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-io-std.c')
-rw-r--r--drivers/ide/ide-io-std.c262
1 files changed, 0 insertions, 262 deletions
diff --git a/drivers/ide/ide-io-std.c b/drivers/ide/ide-io-std.c
deleted file mode 100644
index 94bdcf1ea186..000000000000
--- a/drivers/ide/ide-io-std.c
+++ /dev/null
@@ -1,262 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/ide.h>
-
-#if defined(CONFIG_ARM) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) || \
- defined(CONFIG_PARISC) || defined(CONFIG_PPC) || defined(CONFIG_SPARC)
-#include <asm/ide.h>
-#else
-#include <asm-generic/ide_iops.h>
-#endif
-
-/*
- * Conventional PIO operations for ATA devices
- */
-
-static u8 ide_inb(unsigned long port)
-{
- return (u8) inb(port);
-}
-
-static void ide_outb(u8 val, unsigned long port)
-{
- outb(val, port);
-}
-
-/*
- * MMIO operations, typically used for SATA controllers
- */
-
-static u8 ide_mm_inb(unsigned long port)
-{
- return (u8) readb((void __iomem *) port);
-}
-
-static void ide_mm_outb(u8 value, unsigned long port)
-{
- writeb(value, (void __iomem *) port);
-}
-
-void ide_exec_command(ide_hwif_t *hwif, u8 cmd)
-{
- if (hwif->host_flags & IDE_HFLAG_MMIO)
- writeb(cmd, (void __iomem *)hwif->io_ports.command_addr);
- else
- outb(cmd, hwif->io_ports.command_addr);
-}
-EXPORT_SYMBOL_GPL(ide_exec_command);
-
-u8 ide_read_status(ide_hwif_t *hwif)
-{
- if (hwif->host_flags & IDE_HFLAG_MMIO)
- return readb((void __iomem *)hwif->io_ports.status_addr);
- else
- return inb(hwif->io_ports.status_addr);
-}
-EXPORT_SYMBOL_GPL(ide_read_status);
-
-u8 ide_read_altstatus(ide_hwif_t *hwif)
-{
- if (hwif->host_flags & IDE_HFLAG_MMIO)
- return readb((void __iomem *)hwif->io_ports.ctl_addr);
- else
- return inb(hwif->io_ports.ctl_addr);
-}
-EXPORT_SYMBOL_GPL(ide_read_altstatus);
-
-void ide_write_devctl(ide_hwif_t *hwif, u8 ctl)
-{
- if (hwif->host_flags & IDE_HFLAG_MMIO)
- writeb(ctl, (void __iomem *)hwif->io_ports.ctl_addr);
- else
- outb(ctl, hwif->io_ports.ctl_addr);
-}
-EXPORT_SYMBOL_GPL(ide_write_devctl);
-
-void ide_dev_select(ide_drive_t *drive)
-{
- ide_hwif_t *hwif = drive->hwif;
- u8 select = drive->select | ATA_DEVICE_OBS;
-
- if (hwif->host_flags & IDE_HFLAG_MMIO)
- writeb(select, (void __iomem *)hwif->io_ports.device_addr);
- else
- outb(select, hwif->io_ports.device_addr);
-}
-EXPORT_SYMBOL_GPL(ide_dev_select);
-
-void ide_tf_load(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct ide_io_ports *io_ports = &hwif->io_ports;
- void (*tf_outb)(u8 addr, unsigned long port);
- u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
-
- if (mmio)
- tf_outb = ide_mm_outb;
- else
- tf_outb = ide_outb;
-
- if (valid & IDE_VALID_FEATURE)
- tf_outb(tf->feature, io_ports->feature_addr);
- if (valid & IDE_VALID_NSECT)
- tf_outb(tf->nsect, io_ports->nsect_addr);
- if (valid & IDE_VALID_LBAL)
- tf_outb(tf->lbal, io_ports->lbal_addr);
- if (valid & IDE_VALID_LBAM)
- tf_outb(tf->lbam, io_ports->lbam_addr);
- if (valid & IDE_VALID_LBAH)
- tf_outb(tf->lbah, io_ports->lbah_addr);
- if (valid & IDE_VALID_DEVICE)
- tf_outb(tf->device, io_ports->device_addr);
-}
-EXPORT_SYMBOL_GPL(ide_tf_load);
-
-void ide_tf_read(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct ide_io_ports *io_ports = &hwif->io_ports;
- u8 (*tf_inb)(unsigned long port);
- u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
-
- if (mmio)
- tf_inb = ide_mm_inb;
- else
- tf_inb = ide_inb;
-
- if (valid & IDE_VALID_ERROR)
- tf->error = tf_inb(io_ports->feature_addr);
- if (valid & IDE_VALID_NSECT)
- tf->nsect = tf_inb(io_ports->nsect_addr);
- if (valid & IDE_VALID_LBAL)
- tf->lbal = tf_inb(io_ports->lbal_addr);
- if (valid & IDE_VALID_LBAM)
- tf->lbam = tf_inb(io_ports->lbam_addr);
- if (valid & IDE_VALID_LBAH)
- tf->lbah = tf_inb(io_ports->lbah_addr);
- if (valid & IDE_VALID_DEVICE)
- tf->device = tf_inb(io_ports->device_addr);
-}
-EXPORT_SYMBOL_GPL(ide_tf_read);
-
-/*
- * Some localbus EIDE interfaces require a special access sequence
- * when using 32-bit I/O instructions to transfer data. We call this
- * the "vlb_sync" sequence, which consists of three successive reads
- * of the sector count register location, with interrupts disabled
- * to ensure that the reads all happen together.
- */
-static void ata_vlb_sync(unsigned long port)
-{
- (void)inb(port);
- (void)inb(port);
- (void)inb(port);
-}
-
-/*
- * This is used for most PIO data transfers *from* the IDE interface
- *
- * These routines will round up any request for an odd number of bytes,
- * so if an odd len is specified, be sure that there's at least one
- * extra byte allocated for the buffer.
- */
-void ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf,
- unsigned int len)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct ide_io_ports *io_ports = &hwif->io_ports;
- unsigned long data_addr = io_ports->data_addr;
- unsigned int words = (len + 1) >> 1;
- u8 io_32bit = drive->io_32bit;
- u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
-
- if (io_32bit) {
- unsigned long flags;
-
- if ((io_32bit & 2) && !mmio) {
- local_irq_save(flags);
- ata_vlb_sync(io_ports->nsect_addr);
- }
-
- words >>= 1;
- if (mmio)
- __ide_mm_insl((void __iomem *)data_addr, buf, words);
- else
- insl(data_addr, buf, words);
-
- if ((io_32bit & 2) && !mmio)
- local_irq_restore(flags);
-
- if (((len + 1) & 3) < 2)
- return;
-
- buf += len & ~3;
- words = 1;
- }
-
- if (mmio)
- __ide_mm_insw((void __iomem *)data_addr, buf, words);
- else
- insw(data_addr, buf, words);
-}
-EXPORT_SYMBOL_GPL(ide_input_data);
-
-/*
- * This is used for most PIO data transfers *to* the IDE interface
- */
-void ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf,
- unsigned int len)
-{
- ide_hwif_t *hwif = drive->hwif;
- struct ide_io_ports *io_ports = &hwif->io_ports;
- unsigned long data_addr = io_ports->data_addr;
- unsigned int words = (len + 1) >> 1;
- u8 io_32bit = drive->io_32bit;
- u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0;
-
- if (io_32bit) {
- unsigned long flags;
-
- if ((io_32bit & 2) && !mmio) {
- local_irq_save(flags);
- ata_vlb_sync(io_ports->nsect_addr);
- }
-
- words >>= 1;
- if (mmio)
- __ide_mm_outsl((void __iomem *)data_addr, buf, words);
- else
- outsl(data_addr, buf, words);
-
- if ((io_32bit & 2) && !mmio)
- local_irq_restore(flags);
-
- if (((len + 1) & 3) < 2)
- return;
-
- buf += len & ~3;
- words = 1;
- }
-
- if (mmio)
- __ide_mm_outsw((void __iomem *)data_addr, buf, words);
- else
- outsw(data_addr, buf, words);
-}
-EXPORT_SYMBOL_GPL(ide_output_data);
-
-const struct ide_tp_ops default_tp_ops = {
- .exec_command = ide_exec_command,
- .read_status = ide_read_status,
- .read_altstatus = ide_read_altstatus,
- .write_devctl = ide_write_devctl,
-
- .dev_select = ide_dev_select,
- .tf_load = ide_tf_load,
- .tf_read = ide_tf_read,
-
- .input_data = ide_input_data,
- .output_data = ide_output_data,
-};