ide: remove ->dma_master field from ide_hwif_t (take 5)
* Convert cmd64x, hpt366 and pdc202xx_old host drivers to use
pci_resource_start(hwif->pci_dev, 4) instead of hwif->dma_master.
* Remove no longer needed ->dma_master field from ide_hwif_t.
v2:
* Use the more readable 'hwif->dma_base - (hwif->channel * 8)' instead of
pci_resource_start(hwif->pci_dev, 4).
v3:
* Use hwif->extra_base in hpt366/pdc20xx_old + some cosmetic fixups over v2
(suggested by Sergei).
v4:
* Correct offsets in hpt3xxn_set_clock().
v5:
* Use hwif->extra_base in hpt366 for _real_ this time. (Noticed by Sergei)
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index 4703837..7568c3e 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -968,11 +968,6 @@
hwif->dma_base = base;
- if (hwif->mate)
- hwif->dma_master = hwif->channel ? hwif->mate->dma_base : base;
- else
- hwif->dma_master = base;
-
if (!(hwif->dma_command))
hwif->dma_command = hwif->dma_base;
if (!(hwif->dma_vendor1))
@@ -1014,8 +1009,6 @@
hwif->drives[1].name, (dma_stat & 0x40) ? "DMA" : "pio");
}
printk("\n");
-
- BUG_ON(!hwif->dma_master);
}
EXPORT_SYMBOL_GPL(ide_setup_dma);
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 54943da..9ab5458 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -468,7 +468,6 @@
#endif
hwif->dma_base = tmp_hwif->dma_base;
- hwif->dma_master = tmp_hwif->dma_master;
hwif->dma_command = tmp_hwif->dma_command;
hwif->dma_vendor1 = tmp_hwif->dma_vendor1;
hwif->dma_status = tmp_hwif->dma_status;
@@ -602,7 +601,6 @@
(void) ide_release_dma(hwif);
hwif->dma_base = 0;
- hwif->dma_master = 0;
hwif->dma_command = 0;
hwif->dma_vendor1 = 0;
hwif->dma_status = 0;
diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c
index bc55333..f3613ba 100644
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -333,14 +333,15 @@
static int cmd648_ide_dma_end (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
+ unsigned long base = hwif->dma_base - (hwif->channel * 8);
int err = __ide_dma_end(drive);
u8 irq_mask = hwif->channel ? MRDMODE_INTR_CH1 :
MRDMODE_INTR_CH0;
- u8 mrdmode = inb(hwif->dma_master + 0x01);
+ u8 mrdmode = inb(base + 1);
/* clear the interrupt bit */
outb((mrdmode & ~(MRDMODE_INTR_CH0 | MRDMODE_INTR_CH1)) | irq_mask,
- hwif->dma_master + 0x01);
+ base + 1);
return err;
}
@@ -365,10 +366,11 @@
static int cmd648_ide_dma_test_irq (ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
+ unsigned long base = hwif->dma_base - (hwif->channel * 8);
u8 irq_mask = hwif->channel ? MRDMODE_INTR_CH1 :
MRDMODE_INTR_CH0;
u8 dma_stat = inb(hwif->dma_status);
- u8 mrdmode = inb(hwif->dma_master + 0x01);
+ u8 mrdmode = inb(base + 1);
#ifdef DEBUG
printk("%s: dma_stat: 0x%02x mrdmode: 0x%02x irq_mask: 0x%02x\n",
diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c
index df14d69..d3826a6 100644
--- a/drivers/ide/pci/hpt366.c
+++ b/drivers/ide/pci/hpt366.c
@@ -894,32 +894,33 @@
static void hpt3xxn_set_clock(ide_hwif_t *hwif, u8 mode)
{
- u8 scr2 = inb(hwif->dma_master + 0x7b);
+ unsigned long base = hwif->extra_base;
+ u8 scr2 = inb(base + 0x6b);
if ((scr2 & 0x7f) == mode)
return;
/* Tristate the bus */
- outb(0x80, hwif->dma_master + 0x73);
- outb(0x80, hwif->dma_master + 0x77);
+ outb(0x80, base + 0x63);
+ outb(0x80, base + 0x67);
/* Switch clock and reset channels */
- outb(mode, hwif->dma_master + 0x7b);
- outb(0xc0, hwif->dma_master + 0x79);
+ outb(mode, base + 0x6b);
+ outb(0xc0, base + 0x69);
/*
* Reset the state machines.
* NOTE: avoid accidentally enabling the disabled channels.
*/
- outb(inb(hwif->dma_master + 0x70) | 0x32, hwif->dma_master + 0x70);
- outb(inb(hwif->dma_master + 0x74) | 0x32, hwif->dma_master + 0x74);
+ outb(inb(base + 0x60) | 0x32, base + 0x60);
+ outb(inb(base + 0x64) | 0x32, base + 0x64);
/* Complete reset */
- outb(0x00, hwif->dma_master + 0x79);
+ outb(0x00, base + 0x69);
/* Reconnect channels to bus */
- outb(0x00, hwif->dma_master + 0x73);
- outb(0x00, hwif->dma_master + 0x77);
+ outb(0x00, base + 0x63);
+ outb(0x00, base + 0x67);
}
/**
diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c
index e09742e..22c7a75 100644
--- a/drivers/ide/pci/pdc202xx_old.c
+++ b/drivers/ide/pci/pdc202xx_old.c
@@ -162,7 +162,7 @@
*/
static void pdc_old_enable_66MHz_clock(ide_hwif_t *hwif)
{
- unsigned long clock_reg = hwif->dma_master + 0x11;
+ unsigned long clock_reg = hwif->extra_base + 0x01;
u8 clock = inb(clock_reg);
outb(clock | (hwif->channel ? 0x08 : 0x02), clock_reg);
@@ -170,7 +170,7 @@
static void pdc_old_disable_66MHz_clock(ide_hwif_t *hwif)
{
- unsigned long clock_reg = hwif->dma_master + 0x11;
+ unsigned long clock_reg = hwif->extra_base + 0x01;
u8 clock = inb(clock_reg);
outb(clock & ~(hwif->channel ? 0x08 : 0x02), clock_reg);
@@ -193,7 +193,7 @@
if (drive->media != ide_disk || drive->addressing == 1) {
struct request *rq = HWGROUP(drive)->rq;
ide_hwif_t *hwif = HWIF(drive);
- unsigned long high_16 = hwif->dma_master;
+ unsigned long high_16 = hwif->extra_base - 16;
unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
u32 word_count = 0;
u8 clock = inb(high_16 + 0x11);
@@ -212,7 +212,7 @@
{
if (drive->media != ide_disk || drive->addressing == 1) {
ide_hwif_t *hwif = HWIF(drive);
- unsigned long high_16 = hwif->dma_master;
+ unsigned long high_16 = hwif->extra_base - 16;
unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
u8 clock = 0;
@@ -228,7 +228,7 @@
static int pdc202xx_old_ide_dma_test_irq(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
- unsigned long high_16 = hwif->dma_master;
+ unsigned long high_16 = hwif->extra_base - 16;
u8 dma_stat = inb(hwif->dma_status);
u8 sc1d = inb(high_16 + 0x001d);
@@ -271,7 +271,7 @@
static void pdc202xx_reset_host (ide_hwif_t *hwif)
{
- unsigned long high_16 = hwif->dma_master;
+ unsigned long high_16 = hwif->extra_base - 16;
u8 udma_speed_flag = inb(high_16 | 0x001f);
outb(udma_speed_flag | 0x10, high_16 | 0x001f);