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@xxxxxxxx
To: sshtylyov@xxxxxxxxxxxxx, alan@xxxxxxxxxxxxxxxxxxx,
B.Zolnierkiewicz@xxxxxxxxxxxxxx, mm-commits@xxxxxxxxxxxxxxx
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@xxxxxxxxxxxxx>
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@xxxxxxxxxxxxx>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@xxxxxxxxxxxxxx>
Cc: Alan Cox <alan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
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@xxxxxxxxxxxxx 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
-
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