libata: convert to iomap
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>
diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index 00f2465..4a25093 100644
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -49,6 +49,8 @@
#define DRV_VERSION "2.0"
enum {
+ SIL_MMIO_BAR = 5,
+
/*
* host flags
*/
@@ -200,7 +202,7 @@
.bmdma_status = ata_bmdma_status,
.qc_prep = ata_qc_prep,
.qc_issue = ata_qc_issue_prot,
- .data_xfer = ata_mmio_data_xfer,
+ .data_xfer = ata_data_xfer,
.freeze = sil_freeze,
.thaw = sil_thaw,
.error_handler = ata_bmdma_error_handler,
@@ -295,7 +297,8 @@
{
struct ata_host *host = ap->host;
struct ata_device *dev;
- void __iomem *addr = host->mmio_base + sil_port[ap->port_no].xfer_mode;
+ void __iomem *mmio_base = host->iomap[SIL_MMIO_BAR];
+ void __iomem *addr = mmio_base + sil_port[ap->port_no].xfer_mode;
u32 tmp, dev_mode[2];
unsigned int i;
@@ -318,9 +321,9 @@
readl(addr); /* flush */
}
-static inline unsigned long sil_scr_addr(struct ata_port *ap, unsigned int sc_reg)
+static inline void __iomem *sil_scr_addr(struct ata_port *ap, unsigned int sc_reg)
{
- unsigned long offset = ap->ioaddr.scr_addr;
+ void __iomem *offset = ap->ioaddr.scr_addr;
switch (sc_reg) {
case SCR_STATUS:
@@ -339,7 +342,7 @@
static u32 sil_scr_read (struct ata_port *ap, unsigned int sc_reg)
{
- void __iomem *mmio = (void __iomem *) sil_scr_addr(ap, sc_reg);
+ void __iomem *mmio = sil_scr_addr(ap, sc_reg);
if (mmio)
return readl(mmio);
return 0xffffffffU;
@@ -347,7 +350,7 @@
static void sil_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
{
- void __iomem *mmio = (void __iomem *) sil_scr_addr(ap, sc_reg);
+ void __iomem *mmio = sil_scr_addr(ap, sc_reg);
if (mmio)
writel(val, mmio);
}
@@ -442,7 +445,7 @@
static irqreturn_t sil_interrupt(int irq, void *dev_instance)
{
struct ata_host *host = dev_instance;
- void __iomem *mmio_base = host->mmio_base;
+ void __iomem *mmio_base = host->iomap[SIL_MMIO_BAR];
int handled = 0;
int i;
@@ -474,7 +477,7 @@
static void sil_freeze(struct ata_port *ap)
{
- void __iomem *mmio_base = ap->host->mmio_base;
+ void __iomem *mmio_base = ap->host->iomap[SIL_MMIO_BAR];
u32 tmp;
/* global IRQ mask doesn't block SATA IRQ, turn off explicitly */
@@ -489,7 +492,7 @@
static void sil_thaw(struct ata_port *ap)
{
- void __iomem *mmio_base = ap->host->mmio_base;
+ void __iomem *mmio_base = ap->host->iomap[SIL_MMIO_BAR];
u32 tmp;
/* clear IRQ */
@@ -621,7 +624,6 @@
static int printed_version;
struct device *dev = &pdev->dev;
struct ata_probe_ent *probe_ent;
- unsigned long base;
void __iomem *mmio_base;
int rc;
unsigned int i;
@@ -633,11 +635,11 @@
if (rc)
return rc;
- rc = pci_request_regions(pdev, DRV_NAME);
- if (rc) {
+ rc = pcim_iomap_regions(pdev, 1 << SIL_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)
@@ -662,20 +664,16 @@
probe_ent->irq_flags = IRQF_SHARED;
probe_ent->port_flags = sil_port_info[ent->driver_data].flags;
- mmio_base = pcim_iomap(pdev, 5, 0);
- if (mmio_base == NULL)
- return -ENOMEM;
+ probe_ent->iomap = pcim_iomap_table(pdev);
- probe_ent->mmio_base = mmio_base;
-
- base = (unsigned long) mmio_base;
+ mmio_base = probe_ent->iomap[SIL_MMIO_BAR];
for (i = 0; i < probe_ent->n_ports; i++) {
- probe_ent->port[i].cmd_addr = base + sil_port[i].tf;
+ probe_ent->port[i].cmd_addr = mmio_base + sil_port[i].tf;
probe_ent->port[i].altstatus_addr =
- probe_ent->port[i].ctl_addr = base + sil_port[i].ctl;
- probe_ent->port[i].bmdma_addr = base + sil_port[i].bmdma;
- probe_ent->port[i].scr_addr = base + sil_port[i].scr;
+ probe_ent->port[i].ctl_addr = mmio_base + sil_port[i].ctl;
+ probe_ent->port[i].bmdma_addr = mmio_base + sil_port[i].bmdma;
+ probe_ent->port[i].scr_addr = mmio_base + sil_port[i].scr;
ata_std_ports(&probe_ent->port[i]);
}
@@ -702,7 +700,7 @@
return rc;
sil_init_controller(pdev, host->n_ports, host->ports[0]->flags,
- host->mmio_base);
+ host->iomap[SIL_MMIO_BAR]);
ata_host_resume(host);
return 0;