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libata: convert to iomap

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Convert libata core layer and LLDs to use iomap.

* managed iomap is used.  Pointer to pcim_iomap_table() is cached at
  host->iomap and used through out LLDs.  This basically replaces
  host->mmio_base.

* if possible, pcim_iomap_regions() is used

Most iomap operation conversions are taken from Jeff Garzik
<jgarzik@pobox.com>'s iomap branch.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Tejun Heo
2007-02-01 15:06:36 +09:00
committed by Jeff Garzik
parent 1a68ff13c8
commit 0d5ff56677
63 changed files with 1037 additions and 1508 deletions
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66
include/linux/libata.h
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@@ -348,21 +348,21 @@ typedef int (*ata_reset_fn_t)(struct ata_port *ap, unsigned int *classes);
typedef void (*ata_postreset_fn_t)(struct ata_port *ap, unsigned int *classes);
struct ata_ioports {
unsigned long cmd_addr;
unsigned long data_addr;
unsigned long error_addr;
unsigned long feature_addr;
unsigned long nsect_addr;
unsigned long lbal_addr;
unsigned long lbam_addr;
unsigned long lbah_addr;
unsigned long device_addr;
unsigned long status_addr;
unsigned long command_addr;
unsigned long altstatus_addr;
unsigned long ctl_addr;
unsigned long bmdma_addr;
unsigned long scr_addr;
void __iomem *cmd_addr;
void __iomem *data_addr;
void __iomem *error_addr;
void __iomem *feature_addr;
void __iomem *nsect_addr;
void __iomem *lbal_addr;
void __iomem *lbam_addr;
void __iomem *lbah_addr;
void __iomem *device_addr;
void __iomem *status_addr;
void __iomem *command_addr;
void __iomem *altstatus_addr;
void __iomem *ctl_addr;
void __iomem *bmdma_addr;
void __iomem *scr_addr;
};
struct ata_probe_ent {
@@ -381,7 +381,7 @@ struct ata_probe_ent {
unsigned int irq_flags;
unsigned long port_flags;
unsigned long _host_flags;
void __iomem *mmio_base;
void __iomem * const *iomap;
void *private_data;
/* port_info for the secondary port. Together with irq2, it's
@@ -398,7 +398,7 @@ struct ata_host {
struct device *dev;
unsigned long irq;
unsigned long irq2;
void __iomem *mmio_base;
void __iomem * const *iomap;
unsigned int n_ports;
void *private_data;
const struct ata_port_operations *ops;
@@ -768,12 +768,10 @@ extern u8 ata_altstatus(struct ata_port *ap);
extern void ata_exec_command(struct ata_port *ap, const struct ata_taskfile *tf);
extern int ata_port_start (struct ata_port *ap);
extern irqreturn_t ata_interrupt (int irq, void *dev_instance);
extern void ata_mmio_data_xfer(struct ata_device *adev, unsigned char *buf,
unsigned int buflen, int write_data);
extern void ata_pio_data_xfer(struct ata_device *adev, unsigned char *buf,
unsigned int buflen, int write_data);
extern void ata_pio_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
unsigned int buflen, int write_data);
extern void ata_data_xfer(struct ata_device *adev, unsigned char *buf,
unsigned int buflen, int write_data);
extern void ata_data_xfer_noirq(struct ata_device *adev, unsigned char *buf,
unsigned int buflen, int write_data);
extern void ata_qc_prep(struct ata_queued_cmd *qc);
extern void ata_noop_qc_prep(struct ata_queued_cmd *qc);
extern unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc);
@@ -1084,10 +1082,9 @@ static inline u8 ata_wait_idle(struct ata_port *ap)
u8 status = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
if (status != 0xff && (status & (ATA_BUSY | ATA_DRQ))) {
unsigned long l = ap->ioaddr.status_addr;
if (ata_msg_warn(ap))
printk(KERN_WARNING "ATA: abnormal status 0x%X on port 0x%lX\n",
status, l);
printk(KERN_WARNING "ATA: abnormal status 0x%X on port 0x%p\n",
status, ap->ioaddr.status_addr);
}
return status;
@@ -1172,20 +1169,11 @@ static inline u8 ata_irq_ack(struct ata_port *ap, unsigned int chk_drq)
printk(KERN_ERR "abnormal status 0x%X\n", status);
/* get controller status; clear intr, err bits */
if (ap->flags & ATA_FLAG_MMIO) {
void __iomem *mmio = (void __iomem *) ap->ioaddr.bmdma_addr;
host_stat = readb(mmio + ATA_DMA_STATUS);
writeb(host_stat | ATA_DMA_INTR | ATA_DMA_ERR,
mmio + ATA_DMA_STATUS);
host_stat = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
iowrite8(host_stat | ATA_DMA_INTR | ATA_DMA_ERR,
ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
post_stat = readb(mmio + ATA_DMA_STATUS);
} else {
host_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
outb(host_stat | ATA_DMA_INTR | ATA_DMA_ERR,
ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
post_stat = inb(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
}
post_stat = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
if (ata_msg_intr(ap))
printk(KERN_INFO "%s: irq ack: host_stat 0x%X, new host_stat 0x%X, drv_stat 0x%X\n",