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* [Fwd: - ide-remove-dma_base2-field-form-ide_hwif_t.patch removed from -mm tree]
@ 2006-07-24 20:25 Sergei Shtylyov
  2006-07-24 22:57 ` Jeremy Higdon
  2006-07-25 18:25 ` Alan Cox
  0 siblings, 2 replies; 6+ messages in thread
From: Sergei Shtylyov @ 2006-07-24 20:25 UTC (permalink / raw)
  To: Jeremy Higdon, Jes Sorensen, Brent Casavant, jpk
  Cc: Andrew Morton, Alan Cox, Linux IDE

Hello.

    Alan and Andrew wanted me to coordinate the change with SGI before 
recasting this patch because the sgiioc4.c is the only real user of the
'dma_base2' field which the IDE maintaner wanted me to remove. The use of
this field in this driver doesn't seem necessary or even well grounded -- 
hwif_data seem to fit the task better... Will you ACK this change?

WBR, Sergei

-------- Original Message --------
Subject: - ide-remove-dma_base2-field-form-ide_hwif_t.patch removed from -mm tree
Date: Mon, 26 Jun 2006 11:19:17 -0700
From: akpm@osdl.org
To: sshtylyov@ru.mvista.com, alan@lxorguk.ukuu.org.uk,
B.Zolnierkiewicz@elka.pw.edu.pl, mm-commits@vger.kernel.org


The patch titled

      IDE: remove 'dma_base2' field form 'ide_hwif_t'

has been removed from the -mm tree.  Its filename is

      ide-remove-dma_base2-field-form-ide_hwif_t.patch

This patch was dropped because it conflicts with ide-clean-up-siimage.patch

------------------------------------------------------
Subject: IDE: remove 'dma_base2' field form 'ide_hwif_t'
From: Sergei Shtylylov <sshtylyov@ru.mvista.com>


Remove 'dma_base2' field from 'ide_hwif_t' as it's used only by 2 drivers
and without a great need.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

  drivers/ide/ide-dma.c     |   14 +-------------
  drivers/ide/pci/sgiioc4.c |   22 ++++++++++------------
  include/linux/ide.h       |    1 -
  3 files changed, 11 insertions(+), 26 deletions(-)

diff -puN drivers/ide/ide-dma.c~ide-remove-dma_base2-field-form-ide_hwif_t
drivers/ide/ide-dma.c
--- a/drivers/ide/ide-dma.c~ide-remove-dma_base2-field-form-ide_hwif_t
+++ a/drivers/ide/ide-dma.c
@@ -802,8 +802,6 @@ static int ide_release_iomio_dma(ide_hwi
  	release_region(hwif->dma_base, 8);
  	if (hwif->extra_ports)
  		release_region(hwif->extra_base, hwif->extra_ports);
-	if (hwif->dma_base2)
-		release_region(hwif->dma_base, 8);
  	return 1;
  }

@@ -877,19 +875,9 @@ static int ide_iomio_dma(ide_hwif_t *hwi
  	}

  	if(hwif->mate)
-		hwif->dma_master = (hwif->channel) ? hwif->mate->dma_base : base;
+		hwif->dma_master = (hwif->channel) ? hwif->mate->dma_base:base;
  	else
  		hwif->dma_master = base;
-	if (hwif->dma_base2) {
-		if (!request_region(hwif->dma_base2, ports, hwif->name))
-		{
-			printk(" -- Error, secondary ports in use.\n");
-			release_region(base, ports);
-			if (hwif->extra_ports)
-				release_region(hwif->extra_base, hwif->extra_ports);
-			return 1;
-		}
-	}
  	return 0;
  }

diff -puN drivers/ide/pci/sgiioc4.c~ide-remove-dma_base2-field-form-ide_hwif_t
drivers/ide/pci/sgiioc4.c
--- a/drivers/ide/pci/sgiioc4.c~ide-remove-dma_base2-field-form-ide_hwif_t
+++ a/drivers/ide/pci/sgiioc4.c
@@ -220,7 +220,7 @@ sgiioc4_ide_dma_end(ide_drive_t * drive)
  	ide_hwif_t *hwif = HWIF(drive);
  	u64 dma_base = hwif->dma_base;
  	int dma_stat = 0;
-	unsigned long *ending_dma = (unsigned long *) hwif->dma_base2;
+	unsigned long *ending_dma = ide_get_hwifdata(hwif);

  	hwif->OUTL(IOC4_S_DMA_STOP, dma_base + IOC4_DMA_CTRL * 4);

@@ -367,7 +367,8 @@ sgiioc4_INB(unsigned long port)
  static void __devinit
  ide_dma_sgiioc4(ide_hwif_t * hwif, unsigned long dma_base)
  {
-	int num_ports = sizeof (ioc4_dma_regs_t);
+	int   num_ports = sizeof(ioc4_dma_regs_t);
+	void *pad;

  	printk(KERN_INFO "%s: BM-DMA at 0x%04lx-0x%04lx\n", hwif->name,
  	       dma_base, dma_base + num_ports - 1);
@@ -391,17 +392,14 @@ ide_dma_sgiioc4(ide_hwif_t * hwif, unsig

  	hwif->sg_max_nents = IOC4_PRD_ENTRIES;

-	hwif->dma_base2 = (unsigned long)
-		pci_alloc_consistent(hwif->pci_dev,
-				     IOC4_IDE_CACHELINE_SIZE,
-				     (dma_addr_t *) &(hwif->dma_status));
+	pad = pci_alloc_consistent(hwif->pci_dev, IOC4_IDE_CACHELINE_SIZE,
+				   (dma_addr_t *) &(hwif->dma_status));

-	if (!hwif->dma_base2)
-		goto dma_base2alloc_failure;
-
-	return;
+	if (pad) {
+		ide_set_hwifdata(hwif, pad);
+		return;
+	}

-dma_base2alloc_failure:
  	pci_free_consistent(hwif->pci_dev,
  			    IOC4_PRD_ENTRIES * IOC4_PRD_BYTES,
  			    hwif->dmatable_cpu, hwif->dmatable_dma);
@@ -461,7 +459,7 @@ sgiioc4_configure_for_dma(int dma_direct
  	hwif->OUTL(dma_addr, dma_base + IOC4_DMA_PTR_L * 4);

  	/* Address of the Ending DMA */
-	memset((unsigned int *) hwif->dma_base2, 0, IOC4_IDE_CACHELINE_SIZE);
+	memset(ide_get_hwifdata(hwif), 0, IOC4_IDE_CACHELINE_SIZE);
  	ending_dma_addr = cpu_to_le32(hwif->dma_status);
  	hwif->OUTL(ending_dma_addr, dma_base + IOC4_DMA_END_ADDR * 4);

diff -puN drivers/ide/pci/siimage.c~ide-remove-dma_base2-field-form-ide_hwif_t
drivers/ide/pci/siimage.c
diff -puN include/linux/ide.h~ide-remove-dma_base2-field-form-ide_hwif_t
include/linux/ide.h
--- a/include/linux/ide.h~ide-remove-dma_base2-field-form-ide_hwif_t
+++ a/include/linux/ide.h
@@ -773,7 +773,6 @@ typedef struct hwif_s {
  	unsigned long	dma_status;	/* dma status register */
  	unsigned long	dma_vendor3;	/* dma vendor 3 register */
  	unsigned long	dma_prdtable;	/* actual prd table address */
-	unsigned long	dma_base2;	/* extended base addr for dma ports */

  	unsigned long	config_data;	/* for use by chipset-specific code */
  	unsigned long	select_data;	/* for use by chipset-specific code */
_

Patches currently in -mm which might be from sshtylyov@ru.mvista.com are

origin.patch
ide-actually-honor-drives-minimum-pio-dma-cycle-times.patch
ide-pdc202xx_old-remove-the-obsolete-busproc.patch
pdc202xx_old-depends-on-config_blk_dev_idedma.patch
remove-code-that-has-long-been-commented-out-from-pdc20265_old.patch
ide-clean-up-siimage.patch
ide-claim-extra-dma-ports-regardless-of-channel.patch
ide-remove-dma_base2-field-form-ide_hwif_t.patch
ide-always-release-dma-engine.patch
ide-hpt3xxn-clocking-fixes.patch
ide-fix-hpt37x-timing-tables.patch
ide-optimize-hpt37x-timing-tables.patch
ide-fix-hpt3xx-hotswap-support.patch
ide-fix-the-case-of-multiple-hpt3xx-chips-present.patch
ide-hpt3xx-fix-pci-clock-detection.patch
ide-hpt3xx-fix-pci-clock-detection-fix-2.patch
piix-fix-82371mx-enablebits.patch
piix-remove-check-for-broken-mw-dma-mode-0.patch
piix-slc90e66-pio-mode-fallback-fix.patch
ide_dma_speed-fixes.patch
hpt3xx-rework-rate-filtering.patch
hpt3xx-rework-rate-filtering-tidy.patch
hpt3xx-print-the-real-chip-name-at-startup.patch
hpt3xx-switch-to-using-pci_get_slot.patch
hpt3xx-cache-channels-mcr-address.patch
hpt3x7-merge-speedproc-handlers.patch
hpt370-clean-up-dma-timeout-handling.patch
enable-cdrom-dma-access-with-pdc20265_old.patch


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2006-07-26 19:30 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2006-07-24 20:25 [Fwd: - ide-remove-dma_base2-field-form-ide_hwif_t.patch removed from -mm tree] Sergei Shtylyov
2006-07-24 22:57 ` Jeremy Higdon
2006-07-26 19:21   ` [PATCH] remove dma_base2 field form ide_hwif_t Sergei Shtylyov
2006-07-26 19:23   ` [Fwd: - ide-remove-dma_base2-field-form-ide_hwif_t.patch removed from -mm tree] Sergei Shtylyov
2006-07-26 19:29     ` Brent Casavant
2006-07-25 18:25 ` Alan Cox

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