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-rw-r--r--drivers/ide/hpt366.c8
-rw-r--r--drivers/ide/ide-probe.c50
-rw-r--r--include/linux/ide.h1
3 files changed, 6 insertions, 53 deletions
diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c
index f5afd46ed51..b18e10d99d2 100644
--- a/drivers/ide/hpt366.c
+++ b/drivers/ide/hpt366.c
@@ -135,7 +135,6 @@
/* various tuning parameters */
#define HPT_RESET_STATE_ENGINE
#undef HPT_DELAY_INTERRUPT
-#define HPT_SERIALIZE_IO 0
static const char *quirk_drives[] = {
"QUANTUM FIREBALLlct08 08",
@@ -1288,7 +1287,6 @@ static u8 hpt3xx_cable_detect(ide_hwif_t *hwif)
static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
{
struct hpt_info *info = hpt3xx_get_info(hwif->dev);
- int serialize = HPT_SERIALIZE_IO;
u8 chip_type = info->chip_type;
/* Cache the channel's MISC. control registers' offset */
@@ -1305,13 +1303,9 @@ static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
* Clock is shared between the channels,
* so we'll have to serialize them... :-(
*/
- serialize = 1;
+ hwif->host->host_flags |= IDE_HFLAG_SERIALIZE;
hwif->rw_disk = &hpt3xxn_rw_disk;
}
-
- /* Serialize access to this device if needed */
- if (serialize && hwif->mate)
- hwif->serialized = hwif->mate->serialized = 1;
}
static int __devinit init_dma_hpt366(ide_hwif_t *hwif,
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index f76c22c4508..c1cd1af2646 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -864,31 +864,6 @@ static void ide_port_tune_devices(ide_hwif_t *hwif)
}
/*
- * save_match() is used to simplify logic in init_irq() below.
- *
- * A loophole here is that we may not know about a particular
- * hwif's irq until after that hwif is actually probed/initialized..
- * This could be a problem for the case where an hwif is on a
- * dual interface that requires serialization (eg. cmd640) and another
- * hwif using one of the same irqs is initialized beforehand.
- *
- * This routine detects and reports such situations, but does not fix them.
- */
-static void save_match(ide_hwif_t *hwif, ide_hwif_t *new, ide_hwif_t **match)
-{
- ide_hwif_t *m = *match;
-
- if (m && m->hwgroup && m->hwgroup != new->hwgroup) {
- if (!new->hwgroup)
- return;
- printk(KERN_WARNING "%s: potential IRQ problem with %s and %s\n",
- hwif->name, new->name, m->name);
- }
- if (!m || m->irq != hwif->irq) /* don't undo a prior perfect match */
- *match = new;
-}
-
-/*
* init request queue
*/
static int ide_init_queue(ide_drive_t *drive)
@@ -1052,26 +1027,13 @@ static int init_irq (ide_hwif_t *hwif)
mutex_lock(&ide_cfg_mtx);
hwif->hwgroup = NULL;
- /*
- * Group up with any other hwifs that share our irq(s).
- */
for (index = 0; index < MAX_HWIFS; index++) {
ide_hwif_t *h = ide_ports[index];
if (h && h->hwgroup) { /* scan only initialized ports */
- if (hwif->irq == h->irq) {
- if (hwif->chipset != ide_pci ||
- h->chipset != ide_pci) {
- save_match(hwif, h, &match);
- }
- }
- if (hwif->serialized) {
- if (hwif->mate && hwif->mate->irq == h->irq)
- save_match(hwif, h, &match);
- }
- if (h->serialized) {
- if (h->mate && hwif->irq == h->mate->irq)
- save_match(hwif, h, &match);
+ if (hwif->host->host_flags & IDE_HFLAG_SERIALIZE) {
+ if (hwif->host == h->host)
+ match = h;
}
}
}
@@ -1437,10 +1399,8 @@ static void ide_init_port(ide_hwif_t *hwif, unsigned int port,
}
if ((d->host_flags & IDE_HFLAG_SERIALIZE) ||
- ((d->host_flags & IDE_HFLAG_SERIALIZE_DMA) && hwif->dma_base)) {
- if (hwif->mate)
- hwif->mate->serialized = hwif->serialized = 1;
- }
+ ((d->host_flags & IDE_HFLAG_SERIALIZE_DMA) && hwif->dma_base))
+ hwif->host->host_flags |= IDE_HFLAG_SERIALIZE;
if (d->max_sectors)
hwif->rqsize = d->max_sectors;
diff --git a/include/linux/ide.h b/include/linux/ide.h
index f89d6d69a38..9b89cab6d49 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -839,7 +839,6 @@ typedef struct hwif_s {
unsigned extra_ports; /* number of extra dma ports */
unsigned present : 1; /* this interface exists */
- unsigned serialized : 1; /* serialized all channel operation */
unsigned sg_mapped : 1; /* sg_table and sg_nents are ready */
struct device gendev;