aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/ide/pci/sgiioc4.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-13 14:15:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-13 14:15:06 -0700
commit7591103c08abade60aeddb432ed0686ddd0de1c6 (patch)
tree523343b43b0c420666da18c64e1e9f21ff63dea5 /drivers/ide/pci/sgiioc4.c
parent2be4ff2f084842839b041b793ed6237e8d1d315a (diff)
parent9c6102d446985bca9c426cb2d9b478ed21d2b024 (diff)
downloadkernel_samsung_smdk4412-7591103c08abade60aeddb432ed0686ddd0de1c6.zip
kernel_samsung_smdk4412-7591103c08abade60aeddb432ed0686ddd0de1c6.tar.gz
kernel_samsung_smdk4412-7591103c08abade60aeddb432ed0686ddd0de1c6.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (66 commits) ata: Add documentation for hard disk shock protection interface (v3) ide: Implement disk shock protection support (v4) ide-cd: fix printk format warning piix: add Hercules EC-900 mini-notebook to ich_laptop short cable list ide-atapi: assign taskfile flags per device type ide-cd: move cdrom_info.dma to ide_drive_t.dma ide: add ide_drive_t.dma flag ide-cd: add a debug_mask module parameter ide-cd: convert driver to new ide debugging macro (v3) ide: move SFF DMA code to ide-dma-sff.c ide: cleanup ide-dma.c ide: cleanup ide_build_dmatable() ide: remove needless includes from ide-dma.c ide: switch to DMA-mapping API part #2 ide: make ide_dma_timeout() available also for CONFIG_BLK_DEV_IDEDMA_SFF=n ide: make ide_dma_lost_irq() available also for CONFIG_BLK_DEV_IDEDMA_SFF=n ide: __ide_dma_end() -> ide_dma_end() pmac: remove needless pmac_ide_destroy_dmatable() wrapper pmac: remove superfluous pmif == NULL checks ide: Two fixes regarding memory allocation ...
Diffstat (limited to 'drivers/ide/pci/sgiioc4.c')
-rw-r--r--drivers/ide/pci/sgiioc4.c59
1 files changed, 26 insertions, 33 deletions
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index 1017fb4..dd63454 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -1,5 +1,6 @@
/*
* Copyright (c) 2003-2006 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (C) 2008 MontaVista Software, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
@@ -150,7 +151,7 @@ sgiioc4_clearirq(ide_drive_t * drive)
int count = 0;
stat = sgiioc4_read_status(hwif);
- while ((stat & 0x80) && (count++ < 100)) {
+ while ((stat & ATA_BUSY) && (count++ < 100)) {
udelay(1);
stat = sgiioc4_read_status(hwif);
}
@@ -310,7 +311,7 @@ static u8 sgiioc4_read_status(ide_hwif_t *hwif)
u8 reg = (u8) readb((void __iomem *) port);
if ((port & 0xFFF) == 0x11C) { /* Status register of IOC4 */
- if (reg & 0x51) { /* Not busy...check for interrupt */
+ if (!(reg & ATA_BUSY)) { /* Not busy... check for interrupt */
unsigned long other_ir = port - 0x110;
unsigned int intr_reg = (u32) readl((void __iomem *) other_ir);
@@ -338,35 +339,31 @@ ide_dma_sgiioc4(ide_hwif_t *hwif, const struct ide_port_info *d)
if (dma_base == 0)
return -1;
- printk(KERN_INFO "%s: BM-DMA at 0x%04lx-0x%04lx\n", hwif->name,
- dma_base, dma_base + num_ports - 1);
+ printk(KERN_INFO " %s: MMIO-DMA\n", hwif->name);
- if (!request_mem_region(dma_base, num_ports, hwif->name)) {
- printk(KERN_ERR
- "%s(%s) -- ERROR, Addresses 0x%p to 0x%p "
- "ALREADY in use\n",
- __func__, hwif->name, (void *) dma_base,
- (void *) dma_base + num_ports - 1);
+ if (request_mem_region(dma_base, num_ports, hwif->name) == NULL) {
+ printk(KERN_ERR "%s(%s) -- ERROR: addresses 0x%08lx to 0x%08lx "
+ "already in use\n", __func__, hwif->name,
+ dma_base, dma_base + num_ports - 1);
return -1;
}
virt_dma_base = ioremap(dma_base, num_ports);
if (virt_dma_base == NULL) {
- printk(KERN_ERR
- "%s(%s) -- ERROR, Unable to map addresses 0x%lx to 0x%lx\n",
- __func__, hwif->name, dma_base, dma_base + num_ports - 1);
+ printk(KERN_ERR "%s(%s) -- ERROR: unable to map addresses "
+ "0x%lx to 0x%lx\n", __func__, hwif->name,
+ dma_base, dma_base + num_ports - 1);
goto dma_remap_failure;
}
hwif->dma_base = (unsigned long) virt_dma_base;
- hwif->dmatable_cpu = pci_alloc_consistent(dev,
- IOC4_PRD_ENTRIES * IOC4_PRD_BYTES,
- &hwif->dmatable_dma);
+ hwif->sg_max_nents = IOC4_PRD_ENTRIES;
- if (!hwif->dmatable_cpu)
- goto dma_pci_alloc_failure;
+ hwif->prd_max_nents = IOC4_PRD_ENTRIES;
+ hwif->prd_ent_size = IOC4_PRD_BYTES;
- hwif->sg_max_nents = IOC4_PRD_ENTRIES;
+ if (ide_allocate_dma_engine(hwif))
+ goto dma_pci_alloc_failure;
pad = pci_alloc_consistent(dev, IOC4_IDE_CACHELINE_SIZE,
(dma_addr_t *)&hwif->extra_base);
@@ -375,13 +372,11 @@ ide_dma_sgiioc4(ide_hwif_t *hwif, const struct ide_port_info *d)
return 0;
}
- pci_free_consistent(dev, IOC4_PRD_ENTRIES * IOC4_PRD_BYTES,
- hwif->dmatable_cpu, hwif->dmatable_dma);
- printk(KERN_INFO
- "%s() -- Error! Unable to allocate DMA Maps for drive %s\n",
+ ide_release_dma_engine(hwif);
+
+ printk(KERN_ERR "%s(%s) -- ERROR: Unable to allocate DMA maps\n",
__func__, hwif->name);
- printk(KERN_INFO
- "Changing from DMA to PIO mode for Drive %s\n", hwif->name);
+ printk(KERN_INFO "%s: changing from DMA to PIO mode", hwif->name);
dma_pci_alloc_failure:
iounmap(virt_dma_base);
@@ -617,14 +612,12 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev)
irqport = (unsigned long) virt_base + IOC4_INTR_OFFSET;
cmd_phys_base = bar0 + IOC4_CMD_OFFSET;
- if (!request_mem_region(cmd_phys_base, IOC4_CMD_CTL_BLK_SIZE,
- DRV_NAME)) {
- printk(KERN_ERR
- "%s %s: -- ERROR, Addresses "
- "0x%p to 0x%p ALREADY in use\n",
- DRV_NAME, pci_name(dev), (void *)cmd_phys_base,
- (void *) cmd_phys_base + IOC4_CMD_CTL_BLK_SIZE);
- return -ENOMEM;
+ if (request_mem_region(cmd_phys_base, IOC4_CMD_CTL_BLK_SIZE,
+ DRV_NAME) == NULL) {
+ printk(KERN_ERR "%s %s -- ERROR: addresses 0x%08lx to 0x%08lx "
+ "already in use\n", DRV_NAME, pci_name(dev),
+ cmd_phys_base, cmd_phys_base + IOC4_CMD_CTL_BLK_SIZE);
+ return -EBUSY;
}
/* Initialize the IO registers */