Merge bk://bart.bkbits.net/ide-2.6

into ppc970.osdl.org:/home/torvalds/v2.6/linux

drivers/ide/arm/icside.c

@@ -215,8 +215,6 @@ static void icside_build_sglist(ide_drive_t *drive, struct request *rq)
 	struct scatterlist *sg = hwif->sg_table;
 	int nents;
 
-	BUG_ON(hwif->sg_dma_active);
-
 	if (rq->flags & REQ_DRIVE_TASKFILE) {
 		ide_task_t *args = rq->special;
 
@@ -401,8 +399,6 @@ static int icside_dma_end(ide_drive_t *drive)
 	dma_unmap_sg(state->dev, hwif->sg_table, hwif->sg_nents,
 		     hwif->sg_dma_direction);
 
-	hwif->sg_dma_active = 0;
-
 	return get_dma_residue(hwif->hw.dma) != 0;
 }
 
@@ -454,7 +450,6 @@ icside_dma_common(ide_drive_t *drive, struct request *rq,
 	/*
 	 * We can not enable DMA on both channels.
 	 */
-	BUG_ON(hwif->sg_dma_active);
 	BUG_ON(dma_channel_active(hwif->hw.dma));
 
 	icside_build_sglist(drive, rq);

drivers/ide/ide-dma.c

@@ -208,9 +208,6 @@ int ide_build_sglist(ide_drive_t *drive, struct request *rq)
 	struct scatterlist *sg = hwif->sg_table;
 	int nents;
 
-	if (hwif->sg_dma_active)
-		BUG();
-
 	nents = blk_rq_map_sg(drive->queue, rq, hwif->sg_table);
 		
 	if (rq_data_dir(rq) == READ)
@@ -366,7 +363,6 @@ int ide_build_dmatable (ide_drive_t *drive, struct request *rq)
 		     hwif->sg_table,
 		     hwif->sg_nents,
 		     hwif->sg_dma_direction);
-	hwif->sg_dma_active = 0;
 	return 0; /* revert to PIO for this request */
 }
 
@@ -390,7 +386,6 @@ void ide_destroy_dmatable (ide_drive_t *drive)
 	int nents = HWIF(drive)->sg_nents;
 
 	pci_unmap_sg(dev, sg, nents, HWIF(drive)->sg_dma_direction);
-	HWIF(drive)->sg_dma_active = 0;
 }
 
 EXPORT_SYMBOL_GPL(ide_destroy_dmatable);

drivers/ide/ide-io.c

@@ -384,6 +384,8 @@ void ide_end_drive_cmd (ide_drive_t *drive, u8 stat, u8 err)
 				args->hobRegister[IDE_DATA_OFFSET]	= (data >> 8) & 0xFF;
 			}
 			args->tfRegister[IDE_ERROR_OFFSET]   = err;
+			/* be sure we're looking at the low order bits */
+			hwif->OUTB(drive->ctl & ~0x80, IDE_CONTROL_REG);
 			args->tfRegister[IDE_NSECTOR_OFFSET] = hwif->INB(IDE_NSECTOR_REG);
 			args->tfRegister[IDE_SECTOR_OFFSET]  = hwif->INB(IDE_SECTOR_REG);
 			args->tfRegister[IDE_LCYL_OFFSET]    = hwif->INB(IDE_LCYL_REG);

drivers/ide/pci/amd74xx.c

@@ -416,6 +416,9 @@ static void __init init_hwif_amd74xx(ide_hwif_t *hwif)
 {
 	int i;
 
+	if (!hwif->irq)
+		hwif->irq = hwif->channel ? 15 : 14;
+
 	hwif->autodma = 0;
 
 	hwif->tuneproc = &amd74xx_tune_drive;

drivers/ide/pci/hpt34x.c

@@ -44,65 +44,6 @@
 
 #include "hpt34x.h"
 
-#if defined(DISPLAY_HPT34X_TIMINGS) && defined(CONFIG_PROC_FS)
-#include <linux/stat.h>
-#include <linux/proc_fs.h>
-
-static u8 hpt34x_proc = 0;
-
-#define HPT34X_MAX_DEVS		8
-static struct pci_dev *hpt34x_devs[HPT34X_MAX_DEVS];
-static int n_hpt34x_devs;
-
-static int hpt34x_get_info (char *buffer, char **addr, off_t offset, int count)
-{
-	char *p = buffer;
-	int i, len;
-
-	p += sprintf(p, "\n                             "
-			"HPT34X Chipset.\n");
-	for (i = 0; i < n_hpt34x_devs; i++) {
-		struct pci_dev *dev = hpt34x_devs[i];
-		unsigned long bibma = pci_resource_start(dev, 4);
-		u8  c0 = 0, c1 = 0;
-
-		/*
-		 * at that point bibma+0x2 et bibma+0xa are byte registers
-		 * to investigate:
-		 */
-		c0 = inb_p((u16)bibma + 0x02);
-		c1 = inb_p((u16)bibma + 0x0a);
-		p += sprintf(p, "\nController: %d\n", i);
-		p += sprintf(p, "--------------- Primary Channel "
-				"---------------- Secondary Channel "
-				"-------------\n");
-		p += sprintf(p, "                %sabled "
-				"                        %sabled\n",
-				(c0&0x80) ? "dis" : " en",
-				(c1&0x80) ? "dis" : " en");
-		p += sprintf(p, "--------------- drive0 --------- drive1 "
-				"-------- drive0 ---------- drive1 ------\n");
-		p += sprintf(p, "DMA enabled:    %s              %s"
-				"             %s               %s\n",
-				(c0&0x20) ? "yes" : "no ",
-				(c0&0x40) ? "yes" : "no ",
-				(c1&0x20) ? "yes" : "no ",
-				(c1&0x40) ? "yes" : "no " );
-
-		p += sprintf(p, "UDMA\n");
-		p += sprintf(p, "DMA\n");
-		p += sprintf(p, "PIO\n");
-	}
-	p += sprintf(p, "\n");
-
-	/* p - buffer must be less than 4k! */
-	len = (p - buffer) - offset;
-	*addr = buffer + offset;
-	
-	return len > count ? count : len;
-}
-#endif  /* defined(DISPLAY_HPT34X_TIMINGS) && defined(CONFIG_PROC_FS) */
-
 static u8 hpt34x_ratemask (ide_drive_t *drive)
 {
 	return 1;
@@ -277,15 +218,6 @@ static unsigned int __devinit init_chipset_hpt34x(struct pci_dev *dev, const cha
 
 	local_irq_restore(flags);
 
-#if defined(DISPLAY_HPT34X_TIMINGS) && defined(CONFIG_PROC_FS)
-	hpt34x_devs[n_hpt34x_devs++] = dev;
-
-	if (!hpt34x_proc) {
-		hpt34x_proc = 1;
-		ide_pci_create_host_proc("hpt34x", hpt34x_get_info);
-	}
-#endif /* DISPLAY_HPT34X_TIMINGS && CONFIG_PROC_FS */
-
 	return dev->irq;
 }
 

drivers/ide/pci/hpt34x.h

@@ -11,8 +11,6 @@
 #define SPLIT_BYTE(B,H,L)	((H)=(B>>4), (L)=(B-((B>>4)<<4)))
 #endif
 
-#undef DISPLAY_HPT34X_TIMINGS
-
 static unsigned int init_chipset_hpt34x(struct pci_dev *, const char *);
 static void init_hwif_hpt34x(ide_hwif_t *);
 

drivers/ide/pci/sgiioc4.c

@@ -570,7 +570,6 @@ sgiioc4_build_dma_table(ide_drive_t * drive, struct request *rq, int ddir)
 use_pio_instead:
 	pci_unmap_sg(hwif->pci_dev, hwif->sg_table, hwif->sg_nents,
 		     hwif->sg_dma_direction);
-	hwif->sg_dma_active = 0;
 
 	return 0;		/* revert to PIO for this request */
 }

drivers/ide/ppc/pmac.c

@@ -1578,9 +1578,6 @@ pmac_ide_build_sglist(ide_drive_t *drive, struct request *rq)
 	struct scatterlist *sg = pmif->sg_table;
 	int nents;
 
-	if (hwif->sg_dma_active)
-		BUG();
-		
 	nents = blk_rq_map_sg(drive->queue, rq, sg);
 		
 	if (rq_data_dir(rq) == READ)
@@ -1715,7 +1712,6 @@ pmac_ide_build_dmatable(ide_drive_t *drive, struct request *rq)
 		     pmif->sg_table,
 		     pmif->sg_nents,
 		     pmif->sg_dma_direction);
-	hwif->sg_dma_active = 0;
 	return 0; /* revert to PIO for this request */
 }
 
@@ -1731,7 +1727,6 @@ pmac_ide_destroy_dmatable (ide_drive_t *drive)
 	if (nents) {
 		pci_unmap_sg(dev, sg, nents, pmif->sg_dma_direction);
 		pmif->sg_nents = 0;
-		HWIF(drive)->sg_dma_active = 0;
 	}
 }
 

include/linux/ide.h

@@ -929,7 +929,6 @@ typedef struct hwif_s {
 	struct scatterlist *sg_table;
 	int sg_nents;			/* Current number of entries in it */
 	int sg_dma_direction;		/* dma transfer direction */
-	int sg_dma_active;		/* is it in use */
 
 	/* data phase of the active command (currently only valid for PIO/DMA) */
 	int		data_phase;