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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
Download Patch File Download Diff File Expand all files Collapse all files

55
drivers/ata/sata_promise.c
View File

@@ -50,6 +50,8 @@
enum {
PDC_MMIO_BAR = 3,
/* register offsets */
PDC_FEATURE = 0x04, /* Feature/Error reg (per port) */
PDC_SECTOR_COUNT = 0x08, /* Sector count reg (per port) */
@@ -167,7 +169,7 @@ static const struct ata_port_operations pdc_sata_ops = {
.thaw = pdc_thaw,
.error_handler = pdc_error_handler,
.post_internal_cmd = pdc_post_internal_cmd,
.data_xfer = ata_mmio_data_xfer,
.data_xfer = ata_data_xfer,
.irq_handler = pdc_interrupt,
.irq_clear = pdc_irq_clear,
@@ -192,7 +194,7 @@ static const struct ata_port_operations pdc_old_sata_ops = {
.thaw = pdc_thaw,
.error_handler = pdc_error_handler,
.post_internal_cmd = pdc_post_internal_cmd,
.data_xfer = ata_mmio_data_xfer,
.data_xfer = ata_data_xfer,
.irq_handler = pdc_interrupt,
.irq_clear = pdc_irq_clear,
@@ -214,7 +216,7 @@ static const struct ata_port_operations pdc_pata_ops = {
.qc_prep = pdc_qc_prep,
.qc_issue = pdc_qc_issue_prot,
.data_xfer = ata_mmio_data_xfer,
.data_xfer = ata_data_xfer,
.eng_timeout = pdc_eng_timeout,
.irq_handler = pdc_interrupt,
.irq_clear = pdc_irq_clear,
@@ -348,7 +350,7 @@ static int pdc_port_start(struct ata_port *ap)
static void pdc_reset_port(struct ata_port *ap)
{
void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT;
void __iomem *mmio = ap->ioaddr.cmd_addr + PDC_CTLSTAT;
unsigned int i;
u32 tmp;
@@ -394,7 +396,7 @@ static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg)
{
if (sc_reg > SCR_CONTROL || ap->cbl != ATA_CBL_SATA)
return 0xffffffffU;
return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
return readl(ap->ioaddr.scr_addr + (sc_reg * 4));
}
@@ -403,7 +405,7 @@ static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg,
{
if (sc_reg > SCR_CONTROL || ap->cbl != ATA_CBL_SATA)
return;
writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
writel(val, ap->ioaddr.scr_addr + (sc_reg * 4));
}
static void pdc_atapi_pkt(struct ata_queued_cmd *qc)
@@ -627,7 +629,7 @@ static inline unsigned int pdc_host_intr( struct ata_port *ap,
{
unsigned int handled = 0;
u32 tmp;
void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL;
void __iomem *mmio = ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL;
tmp = readl(mmio);
if (tmp & PDC_ERR_MASK) {
@@ -656,7 +658,7 @@ static inline unsigned int pdc_host_intr( struct ata_port *ap,
static void pdc_irq_clear(struct ata_port *ap)
{
struct ata_host *host = ap->host;
void __iomem *mmio = host->mmio_base;
void __iomem *mmio = host->iomap[PDC_MMIO_BAR];
readl(mmio + PDC_INT_SEQMASK);
}
@@ -672,12 +674,12 @@ static irqreturn_t pdc_interrupt (int irq, void *dev_instance)
VPRINTK("ENTER\n");
if (!host || !host->mmio_base) {
if (!host || !host->iomap[PDC_MMIO_BAR]) {
VPRINTK("QUICK EXIT\n");
return IRQ_NONE;
}
mmio_base = host->mmio_base;
mmio_base = host->iomap[PDC_MMIO_BAR];
/* reading should also clear interrupts */
mask = readl(mmio_base + PDC_INT_SEQMASK);
@@ -722,18 +724,19 @@ static inline void pdc_packet_start(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct pdc_port_priv *pp = ap->private_data;
void __iomem *mmio = ap->host->iomap[PDC_MMIO_BAR];
unsigned int port_no = ap->port_no;
u8 seq = (u8) (port_no + 1);
VPRINTK("ENTER, ap %p\n", ap);
writel(0x00000001, ap->host->mmio_base + (seq * 4));
readl(ap->host->mmio_base + (seq * 4)); /* flush */
writel(0x00000001, mmio + (seq * 4));
readl(mmio + (seq * 4)); /* flush */
pp->pkt[2] = seq;
wmb(); /* flush PRD, pkt writes */
writel(pp->pkt_dma, (void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
readl((void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */
writel(pp->pkt_dma, ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
readl(ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */
}
static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc)
@@ -808,7 +811,7 @@ static int pdc_old_check_atapi_dma(struct ata_queued_cmd *qc)
return pdc_check_atapi_dma(qc);
}
static void pdc_ata_setup_port(struct ata_ioports *port, unsigned long base)
static void pdc_ata_setup_port(struct ata_ioports *port, void __iomem *base)
{
port->cmd_addr = base;
port->data_addr = base;
@@ -828,7 +831,7 @@ static void pdc_ata_setup_port(struct ata_ioports *port, unsigned long base)
static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
{
void __iomem *mmio = pe->mmio_base;
void __iomem *mmio = pe->iomap[PDC_MMIO_BAR];
struct pdc_host_priv *hp = pe->private_data;
int hotplug_offset;
u32 tmp;
@@ -884,8 +887,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
static int printed_version;
struct ata_probe_ent *probe_ent;
struct pdc_host_priv *hp;
unsigned long base;
void __iomem *mmio_base;
void __iomem *base;
unsigned int board_idx = (unsigned int) ent->driver_data;
int rc;
u8 tmp;
@@ -897,11 +899,11 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
if (rc)
return rc;
rc = pci_request_regions(pdev, DRV_NAME);
if (rc) {
rc = pcim_iomap_regions(pdev, 1 << PDC_MMIO_BAR, DRV_NAME);
if (rc == -EBUSY)
pcim_pin_device(pdev);
if (rc)
return rc;
}
rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
if (rc)
@@ -917,11 +919,6 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
probe_ent->dev = pci_dev_to_dev(pdev);
INIT_LIST_HEAD(&probe_ent->node);
mmio_base = pcim_iomap(pdev, 3, 0);
if (mmio_base == NULL)
return -ENOMEM;
base = (unsigned long) mmio_base;
hp = devm_kzalloc(&pdev->dev, sizeof(*hp), GFP_KERNEL);
if (hp == NULL)
return -ENOMEM;
@@ -937,7 +934,9 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
probe_ent->irq = pdev->irq;
probe_ent->irq_flags = IRQF_SHARED;
probe_ent->mmio_base = mmio_base;
probe_ent->iomap = pcim_iomap_table(pdev);
base = probe_ent->iomap[PDC_MMIO_BAR];
pdc_ata_setup_port(&probe_ent->port[0], base + 0x200);
pdc_ata_setup_port(&probe_ent->port[1], base + 0x280);
@@ -964,7 +963,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
/* Fall through */
case board_2037x:
/* TX2plus boards also have a PATA port */
tmp = readb(mmio_base + PDC_FLASH_CTL+1);
tmp = readb(base + PDC_FLASH_CTL+1);
if (!(tmp & 0x80)) {
probe_ent->n_ports = 3;
pdc_ata_setup_port(&probe_ent->port[2], base + 0x300);