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Commit 92d3ab27 authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz
Browse files

falconide/q40ide: add ->atapi_*put_bytes and ->ata_*put_data methods (take 2) 



* Add ->atapi_{in,out}put_bytes and ->ata_{in,out}put_data methods to
  falconide and q40ide host drivers (->ata_* methods are implemented on
  top of ->atapi_* methods so they also do byte-swapping now).

* Cleanup atapi_{in,out}put_bytes().

v2:
* Add 'struct request *rq' argument to ->ata_{in,out}put_data methods
  and don't byte-swap disk fs requests (we shouldn't un-swap fs requests
  because fs itself is stored byte-swapped on the disk) - this is how
  things were done before the patch (ideally device mapper should be
  used instead but it would break existing setups and would have some
  performance impact).

Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michael Schmitz <schmitz@debian.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Richard Zidlicky <rz@linux-m68k.org>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 284aa76b

drivers/ide/cris/ide-cris.c

+8 −6
Original line number Diff line number Diff line
@@ -673,8 +673,10 @@ cris_ide_inb(unsigned long reg) 
	return (unsigned char)cris_ide_inw(reg);

}



static void cris_ide_input_data (ide_drive_t *drive, void *, unsigned int);

static void cris_ide_output_data (ide_drive_t *drive, void *, unsigned int);

static void cris_ide_input_data(ide_drive_t *, struct request *,

				void *, unsigned int);

static void cris_ide_output_data(ide_drive_t *, struct request *,

				 void *, unsigned int);

static void cris_atapi_input_bytes(ide_drive_t *drive, void *, unsigned int);

static void cris_atapi_output_bytes(ide_drive_t *drive, void *, unsigned int);
@@ -900,8 +902,8 @@ cris_atapi_output_bytes (ide_drive_t *drive, void *buffer, unsigned int bytecoun 
/*

 * This is used for most PIO data transfers *from* the IDE interface

 */

static void

cris_ide_input_data (ide_drive_t *drive, void *buffer, unsigned int wcount)

static void cris_ide_input_data(ide_drive_t *drive, struct request *rq,

				void *buffer, unsigned int wcount)

{

	cris_atapi_input_bytes(drive, buffer, wcount << 2);

}
@@ -909,8 +911,8 @@ cris_ide_input_data (ide_drive_t *drive, void *buffer, unsigned int wcount) 
/*

 * This is used for most PIO data transfers *to* the IDE interface

 */

static void

cris_ide_output_data (ide_drive_t *drive, void *buffer, unsigned int wcount)

static void cris_ide_output_data(ide_drive_t *drive, struct request *,

				 void *buffer, unsigned int wcount)

{

	cris_atapi_output_bytes(drive, buffer, wcount << 2);

}

drivers/ide/ide-io.c

+1 −1
Original line number Diff line number Diff line
@@ -422,7 +422,7 @@ static void try_to_flush_leftover_data (ide_drive_t *drive) 
		u32 wcount = (i > 16) ? 16 : i;



		i -= wcount;

		HWIF(drive)->ata_input_data(drive, buffer, wcount);

		drive->hwif->ata_input_data(drive, NULL, buffer, wcount);

	}

}

drivers/ide/ide-iops.c

+7 −19
Original line number Diff line number Diff line
@@ -192,7 +192,8 @@ static void ata_vlb_sync(ide_drive_t *drive, unsigned long port) 
/*

 * This is used for most PIO data transfers *from* the IDE interface

 */

static void ata_input_data(ide_drive_t *drive, void *buffer, u32 wcount)

static void ata_input_data(ide_drive_t *drive, struct request *rq,

			   void *buffer, u32 wcount)

{

	ide_hwif_t *hwif = drive->hwif;

	struct ide_io_ports *io_ports = &hwif->io_ports;
@@ -215,7 +216,8 @@ static void ata_input_data(ide_drive_t *drive, void *buffer, u32 wcount) 
/*

 * This is used for most PIO data transfers *to* the IDE interface

 */

static void ata_output_data(ide_drive_t *drive, void *buffer, u32 wcount)

static void ata_output_data(ide_drive_t *drive, struct request *rq,

			    void *buffer, u32 wcount)

{

	ide_hwif_t *hwif = drive->hwif;

	struct ide_io_ports *io_ports = &hwif->io_ports;
@@ -248,14 +250,7 @@ static void atapi_input_bytes(ide_drive_t *drive, void *buffer, u32 bytecount) 
	ide_hwif_t *hwif = HWIF(drive);



	++bytecount;

#if defined(CONFIG_ATARI) || defined(CONFIG_Q40)

	if (MACH_IS_ATARI || MACH_IS_Q40) {

		/* Atari has a byte-swapped IDE interface */

		insw_swapw(hwif->io_ports.data_addr, buffer, bytecount / 2);

		return;

	}

#endif /* CONFIG_ATARI || CONFIG_Q40 */

	hwif->ata_input_data(drive, buffer, bytecount / 4);

	hwif->ata_input_data(drive, NULL, buffer, bytecount / 4);

	if ((bytecount & 0x03) >= 2)

		hwif->INSW(hwif->io_ports.data_addr,

			   (u8 *)buffer + (bytecount & ~0x03), 1);
@@ -266,14 +261,7 @@ static void atapi_output_bytes(ide_drive_t *drive, void *buffer, u32 bytecount) 
	ide_hwif_t *hwif = HWIF(drive);



	++bytecount;

#if defined(CONFIG_ATARI) || defined(CONFIG_Q40)

	if (MACH_IS_ATARI || MACH_IS_Q40) {

		/* Atari has a byte-swapped IDE interface */

		outsw_swapw(hwif->io_ports.data_addr, buffer, bytecount / 2);

		return;

	}

#endif /* CONFIG_ATARI || CONFIG_Q40 */

	hwif->ata_output_data(drive, buffer, bytecount / 4);

	hwif->ata_output_data(drive, NULL, buffer, bytecount / 4);

	if ((bytecount & 0x03) >= 2)

		hwif->OUTSW(hwif->io_ports.data_addr,

			    (u8 *)buffer + (bytecount & ~0x03), 1);
@@ -668,7 +656,7 @@ int ide_driveid_update(ide_drive_t *drive) 
		local_irq_restore(flags);

		return 0;

	}

	hwif->ata_input_data(drive, id, SECTOR_WORDS);

	hwif->ata_input_data(drive, NULL, id, SECTOR_WORDS);

	(void)ide_read_status(drive);	/* clear drive IRQ */

	local_irq_enable();

	local_irq_restore(flags);

drivers/ide/ide-probe.c

+1 −1
Original line number Diff line number Diff line
@@ -124,7 +124,7 @@ static inline void do_identify (ide_drive_t *drive, u8 cmd) 


	id = drive->id;

	/* read 512 bytes of id info */

	hwif->ata_input_data(drive, id, SECTOR_WORDS);

	hwif->ata_input_data(drive, NULL, id, SECTOR_WORDS);



	drive->id_read = 1;

	local_irq_enable();

drivers/ide/ide-taskfile.c

+9 −7
Original line number Diff line number Diff line
@@ -283,7 +283,8 @@ static u8 wait_drive_not_busy(ide_drive_t *drive) 
	return stat;

}



static void ide_pio_sector(ide_drive_t *drive, unsigned int write)

static void ide_pio_sector(ide_drive_t *drive, struct request *rq,

			   unsigned int write)

{

	ide_hwif_t *hwif = drive->hwif;

	struct scatterlist *sg = hwif->sg_table;
@@ -323,9 +324,9 @@ static void ide_pio_sector(ide_drive_t *drive, unsigned int write) 


	/* do the actual data transfer */

	if (write)

		hwif->ata_output_data(drive, buf, SECTOR_WORDS);

		hwif->ata_output_data(drive, rq, buf, SECTOR_WORDS);

	else

		hwif->ata_input_data(drive, buf, SECTOR_WORDS);

		hwif->ata_input_data(drive, rq, buf, SECTOR_WORDS);



	kunmap_atomic(buf, KM_BIO_SRC_IRQ);

#ifdef CONFIG_HIGHMEM
@@ -333,13 +334,14 @@ static void ide_pio_sector(ide_drive_t *drive, unsigned int write) 
#endif

}



static void ide_pio_multi(ide_drive_t *drive, unsigned int write)

static void ide_pio_multi(ide_drive_t *drive, struct request *rq,

			  unsigned int write)

{

	unsigned int nsect;



	nsect = min_t(unsigned int, drive->hwif->nleft, drive->mult_count);

	while (nsect--)

		ide_pio_sector(drive, write);

		ide_pio_sector(drive, rq, write);

}



static void ide_pio_datablock(ide_drive_t *drive, struct request *rq,
@@ -362,10 +364,10 @@ static void ide_pio_datablock(ide_drive_t *drive, struct request *rq, 
	switch (drive->hwif->data_phase) {

	case TASKFILE_MULTI_IN:

	case TASKFILE_MULTI_OUT:

		ide_pio_multi(drive, write);

		ide_pio_multi(drive, rq, write);

		break;

	default:

		ide_pio_sector(drive, write);

		ide_pio_sector(drive, rq, write);

		break;

	}