redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

ide: skip "VLB sync" if host uses MMIO 

* Skip "VLB sync" in ata_{in,out}put_data() if host uses MMIO.

* Use I/O ops directly in ata_vlb_sync() an drop no longer needed
  'ide_drive_t *drive' argument.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
hifive-unleashed-5.1
Bartlomiej Zolnierkiewicz 2008-04-28 23:44:41 +02:00
parent 9f87abe892
commit 22cdd6cedc
1 changed files with 10 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/ide/ide-iops.c
View File

@ -227,11 +227,11 @@ static void ide_tf_read(ide_drive_t *drive, ide_task_t *task)
* of the sector count register location, with interrupts disabled
* to ensure that the reads all happen together.
*/
static void ata_vlb_sync(ide_drive_t *drive, unsigned long port)
static void ata_vlb_sync(unsigned long port)
{
(void) HWIF(drive)->INB(port);
(void) HWIF(drive)->INB(port);
(void) HWIF(drive)->INB(port);
(void)inb(port);
(void)inb(port);
(void)inb(port);
}
/*
@ -255,9 +255,9 @@ static void ata_input_data(ide_drive_t *drive, struct request *rq,
if (io_32bit) {
unsigned long uninitialized_var(flags);
if (io_32bit & 2) {
if ((io_32bit & 2) && !mmio) {
local_irq_save(flags);
ata_vlb_sync(drive, io_ports->nsect_addr);
ata_vlb_sync(io_ports->nsect_addr);
}
if (mmio)
@ -265,7 +265,7 @@ static void ata_input_data(ide_drive_t *drive, struct request *rq,
else
insl(data_addr, buf, len / 4);
if (io_32bit & 2)
if ((io_32bit & 2) && !mmio)
local_irq_restore(flags);
if ((len & 3) >= 2) {
@ -298,9 +298,9 @@ static void ata_output_data(ide_drive_t *drive, struct request *rq,
if (io_32bit) {
unsigned long uninitialized_var(flags);
if (io_32bit & 2) {
if ((io_32bit & 2) && !mmio) {
local_irq_save(flags);
ata_vlb_sync(drive, io_ports->nsect_addr);
ata_vlb_sync(io_ports->nsect_addr);
}
if (mmio)
@ -308,7 +308,7 @@ static void ata_output_data(ide_drive_t *drive, struct request *rq,
else
outsl(data_addr, buf, len / 4);
if (io_32bit & 2)
if ((io_32bit & 2) && !mmio)
local_irq_restore(flags);
if ((len & 3) >= 2) {