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path: root/drivers/sn/ioc3.c
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Diffstat (limited to 'drivers/sn/ioc3.c')
-rw-r--r--drivers/sn/ioc3.c114
1 files changed, 53 insertions, 61 deletions
diff --git a/drivers/sn/ioc3.c b/drivers/sn/ioc3.c
index aaa009f4a7b..fb7ea0d9a73 100644
--- a/drivers/sn/ioc3.c
+++ b/drivers/sn/ioc3.c
@@ -7,15 +7,16 @@
* Pat Gefre <pfg@sgi.com> - IOC3 serial port IRQ demuxer
*/
-#include <linux/config.h>
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/pci.h>
+#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <linux/ioc3.h>
#include <linux/rwsem.h>
+#include <linux/slab.h>
#define IOC3_PCI_SIZE 0x100000
@@ -25,7 +26,7 @@ static DECLARE_RWSEM(ioc3_devices_rwsem);
static struct ioc3_submodule *ioc3_submodules[IOC3_MAX_SUBMODULES];
static struct ioc3_submodule *ioc3_ethernet;
-static rwlock_t ioc3_submodules_lock = RW_LOCK_UNLOCKED;
+static DEFINE_RWLOCK(ioc3_submodules_lock);
/* NIC probing code */
@@ -38,10 +39,10 @@ static inline unsigned mcr_pack(unsigned pulse, unsigned sample)
static int nic_wait(struct ioc3_driver_data *idd)
{
- volatile unsigned mcr;
+ unsigned mcr;
do {
- mcr = (volatile unsigned)idd->vma->mcr;
+ mcr = readl(&idd->vma->mcr);
} while (!(mcr & 2));
return mcr & 1;
@@ -53,7 +54,7 @@ static int nic_reset(struct ioc3_driver_data *idd)
unsigned long flags;
local_irq_save(flags);
- idd->vma->mcr = mcr_pack(500, 65);
+ writel(mcr_pack(500, 65), &idd->vma->mcr);
presence = nic_wait(idd);
local_irq_restore(flags);
@@ -62,13 +63,13 @@ static int nic_reset(struct ioc3_driver_data *idd)
return presence;
}
-static inline int nic_read_bit(struct ioc3_driver_data *idd)
+static int nic_read_bit(struct ioc3_driver_data *idd)
{
int result;
unsigned long flags;
local_irq_save(flags);
- idd->vma->mcr = mcr_pack(6, 13);
+ writel(mcr_pack(6, 13), &idd->vma->mcr);
result = nic_wait(idd);
local_irq_restore(flags);
@@ -77,12 +78,12 @@ static inline int nic_read_bit(struct ioc3_driver_data *idd)
return result;
}
-static inline void nic_write_bit(struct ioc3_driver_data *idd, int bit)
+static void nic_write_bit(struct ioc3_driver_data *idd, int bit)
{
if (bit)
- idd->vma->mcr = mcr_pack(6, 110);
+ writel(mcr_pack(6, 110), &idd->vma->mcr);
else
- idd->vma->mcr = mcr_pack(80, 30);
+ writel(mcr_pack(80, 30), &idd->vma->mcr);
nic_wait(idd);
}
@@ -337,7 +338,7 @@ static void probe_nic(struct ioc3_driver_data *idd)
int save = 0, loops = 3;
unsigned long first, addr;
- idd->vma->gpcr_s = GPCR_MLAN_EN;
+ writel(GPCR_MLAN_EN, &idd->vma->gpcr_s);
while(loops>0) {
idd->nic_part[0] = 0;
@@ -371,8 +372,7 @@ static void probe_nic(struct ioc3_driver_data *idd)
/* Interrupts */
-static inline void
-write_ireg(struct ioc3_driver_data *idd, uint32_t val, int which)
+static void write_ireg(struct ioc3_driver_data *idd, uint32_t val, int which)
{
unsigned long flags;
@@ -399,21 +399,21 @@ static inline uint32_t get_pending_intrs(struct ioc3_driver_data *idd)
return intrs;
}
-static irqreturn_t ioc3_intr_io(int irq, void *arg, struct pt_regs *regs)
+static irqreturn_t ioc3_intr_io(int irq, void *arg)
{
unsigned long flags;
- struct ioc3_driver_data *idd = (struct ioc3_driver_data *)arg;
+ struct ioc3_driver_data *idd = arg;
int handled = 1, id;
unsigned int pending;
read_lock_irqsave(&ioc3_submodules_lock, flags);
- if(idd->dual_irq && idd->vma->eisr) {
+ if(idd->dual_irq && readb(&idd->vma->eisr)) {
/* send Ethernet IRQ to the driver */
if(ioc3_ethernet && idd->active[ioc3_ethernet->id] &&
ioc3_ethernet->intr) {
handled = handled && !ioc3_ethernet->intr(ioc3_ethernet,
- idd, 0, regs);
+ idd, 0);
}
}
pending = get_pending_intrs(idd); /* look at the IO IRQs */
@@ -425,8 +425,7 @@ static irqreturn_t ioc3_intr_io(int irq, void *arg, struct pt_regs *regs)
write_ireg(idd, ioc3_submodules[id]->irq_mask,
IOC3_W_IEC);
if(!ioc3_submodules[id]->intr(ioc3_submodules[id],
- idd, pending & ioc3_submodules[id]->irq_mask,
- regs))
+ idd, pending & ioc3_submodules[id]->irq_mask))
pending &= ~ioc3_submodules[id]->irq_mask;
if (ioc3_submodules[id]->reset_mask)
write_ireg(idd, ioc3_submodules[id]->irq_mask,
@@ -443,7 +442,7 @@ static irqreturn_t ioc3_intr_io(int irq, void *arg, struct pt_regs *regs)
return handled?IRQ_HANDLED:IRQ_NONE;
}
-static irqreturn_t ioc3_intr_eth(int irq, void *arg, struct pt_regs *regs)
+static irqreturn_t ioc3_intr_eth(int irq, void *arg)
{
unsigned long flags;
struct ioc3_driver_data *idd = (struct ioc3_driver_data *)arg;
@@ -454,8 +453,7 @@ static irqreturn_t ioc3_intr_eth(int irq, void *arg, struct pt_regs *regs)
read_lock_irqsave(&ioc3_submodules_lock, flags);
if(ioc3_ethernet && idd->active[ioc3_ethernet->id]
&& ioc3_ethernet->intr)
- handled = handled && !ioc3_ethernet->intr(ioc3_ethernet, idd, 0,
- regs);
+ handled = handled && !ioc3_ethernet->intr(ioc3_ethernet, idd, 0);
read_unlock_irqrestore(&ioc3_submodules_lock, flags);
return handled?IRQ_HANDLED:IRQ_NONE;
}
@@ -564,7 +562,7 @@ void ioc3_unregister_submodule(struct ioc3_submodule *is)
printk(KERN_WARNING
"%s: IOC3 submodule %s remove failed "
"for pci_dev %s.\n",
- __FUNCTION__, module_name(is->owner),
+ __func__, module_name(is->owner),
pci_name(idd->pdev));
idd->active[is->id] = 0;
if(is->irq_mask)
@@ -577,9 +575,8 @@ void ioc3_unregister_submodule(struct ioc3_submodule *is)
* Device management *
*********************/
-static char *
-ioc3_class_names[]={"unknown", "IP27 BaseIO", "IP30 system", "MENET 1/2/3",
- "MENET 4", "CADduo", "Altix Serial"};
+static char *ioc3_class_names[] = { "unknown", "IP27 BaseIO", "IP30 system",
+ "MENET 1/2/3", "MENET 4", "CADduo", "Altix Serial" };
static int ioc3_class(struct ioc3_driver_data *idd)
{
@@ -614,33 +611,32 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
if ((ret = pci_enable_device(pdev))) {
printk(KERN_WARNING
"%s: Failed to enable IOC3 device for pci_dev %s.\n",
- __FUNCTION__, pci_name(pdev));
+ __func__, pci_name(pdev));
goto out;
}
pci_set_master(pdev);
#ifdef USE_64BIT_DMA
- ret = pci_set_dma_mask(pdev, 0xffffffffffffffffULL);
+ ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
if (!ret) {
- ret = pci_set_consistent_dma_mask(pdev, 0xffffffffffffffffULL);
+ ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
if (ret < 0) {
printk(KERN_WARNING "%s: Unable to obtain 64 bit DMA "
"for consistent allocations\n",
- __FUNCTION__);
+ __func__);
}
}
#endif
/* Set up per-IOC3 data */
- idd = kmalloc(sizeof(struct ioc3_driver_data), GFP_KERNEL);
+ idd = kzalloc(sizeof(struct ioc3_driver_data), GFP_KERNEL);
if (!idd) {
printk(KERN_WARNING
"%s: Failed to allocate IOC3 data for pci_dev %s.\n",
- __FUNCTION__, pci_name(pdev));
+ __func__, pci_name(pdev));
ret = -ENODEV;
goto out_idd;
}
- memset(idd, 0, sizeof(struct ioc3_driver_data));
spin_lock_init(&idd->ir_lock);
spin_lock_init(&idd->gpio_lock);
idd->pdev = pdev;
@@ -653,15 +649,15 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
printk(KERN_WARNING
"%s: Unable to find IOC3 resource "
"for pci_dev %s.\n",
- __FUNCTION__, pci_name(pdev));
+ __func__, pci_name(pdev));
ret = -ENODEV;
goto out_pci;
}
- if (!request_region(idd->pma, IOC3_PCI_SIZE, "ioc3")) {
+ if (!request_mem_region(idd->pma, IOC3_PCI_SIZE, "ioc3")) {
printk(KERN_WARNING
"%s: Unable to request IOC3 region "
"for pci_dev %s.\n",
- __FUNCTION__, pci_name(pdev));
+ __func__, pci_name(pdev));
ret = -ENODEV;
goto out_pci;
}
@@ -670,7 +666,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
printk(KERN_WARNING
"%s: Unable to remap IOC3 region "
"for pci_dev %s.\n",
- __FUNCTION__, pci_name(pdev));
+ __func__, pci_name(pdev));
ret = -ENODEV;
goto out_misc_region;
}
@@ -678,11 +674,11 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
/* Track PCI-device specific data */
pci_set_drvdata(pdev, idd);
down_write(&ioc3_devices_rwsem);
- list_add(&idd->list, &ioc3_devices);
+ list_add_tail(&idd->list, &ioc3_devices);
idd->id = ioc3_counter++;
up_write(&ioc3_devices_rwsem);
- idd->gpdr_shadow = idd->vma->gpdr;
+ idd->gpdr_shadow = readl(&idd->vma->gpdr);
/* Read IOC3 NIC contents */
probe_nic(idd);
@@ -707,49 +703,47 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
writel(~0, &idd->vma->eisr);
idd->dual_irq = 1;
- if (!request_irq(pdev->irq, ioc3_intr_eth, SA_SHIRQ,
+ if (!request_irq(pdev->irq, ioc3_intr_eth, IRQF_SHARED,
"ioc3-eth", (void *)idd)) {
idd->irq_eth = pdev->irq;
} else {
printk(KERN_WARNING
"%s : request_irq fails for IRQ 0x%x\n ",
- __FUNCTION__, pdev->irq);
+ __func__, pdev->irq);
}
- if (!request_irq(pdev->irq+2, ioc3_intr_io, SA_SHIRQ,
+ if (!request_irq(pdev->irq+2, ioc3_intr_io, IRQF_SHARED,
"ioc3-io", (void *)idd)) {
idd->irq_io = pdev->irq+2;
} else {
printk(KERN_WARNING
"%s : request_irq fails for IRQ 0x%x\n ",
- __FUNCTION__, pdev->irq+2);
+ __func__, pdev->irq+2);
}
} else {
- if (!request_irq(pdev->irq, ioc3_intr_io, SA_SHIRQ,
+ if (!request_irq(pdev->irq, ioc3_intr_io, IRQF_SHARED,
"ioc3", (void *)idd)) {
idd->irq_io = pdev->irq;
} else {
printk(KERN_WARNING
"%s : request_irq fails for IRQ 0x%x\n ",
- __FUNCTION__, pdev->irq);
+ __func__, pdev->irq);
}
}
/* Add this IOC3 to all submodules */
- read_lock(&ioc3_submodules_lock);
for(id=0;id<IOC3_MAX_SUBMODULES;id++)
if(ioc3_submodules[id] && ioc3_submodules[id]->probe) {
idd->active[id] = 1;
idd->active[id] = !ioc3_submodules[id]->probe
(ioc3_submodules[id], idd);
}
- read_unlock(&ioc3_submodules_lock);
printk(KERN_INFO "IOC3 Master Driver loaded for %s\n", pci_name(pdev));
return 0;
out_misc_region:
- release_region(idd->pma, IOC3_PCI_SIZE);
+ release_mem_region(idd->pma, IOC3_PCI_SIZE);
out_pci:
kfree(idd);
out_idd:
@@ -767,7 +761,6 @@ static void ioc3_remove(struct pci_dev *pdev)
idd = pci_get_drvdata(pdev);
/* Remove this IOC3 from all submodules */
- read_lock(&ioc3_submodules_lock);
for(id=0;id<IOC3_MAX_SUBMODULES;id++)
if(idd->active[id]) {
if(ioc3_submodules[id] && ioc3_submodules[id]->remove)
@@ -776,12 +769,11 @@ static void ioc3_remove(struct pci_dev *pdev)
printk(KERN_WARNING
"%s: IOC3 submodule 0x%s remove failed "
"for pci_dev %s.\n",
- __FUNCTION__,
+ __func__,
module_name(ioc3_submodules[id]->owner),
pci_name(pdev));
idd->active[id] = 0;
}
- read_unlock(&ioc3_submodules_lock);
/* Clear and disable all IRQs */
write_ireg(idd, ~0, IOC3_W_IEC);
@@ -792,7 +784,7 @@ static void ioc3_remove(struct pci_dev *pdev)
if(idd->dual_irq)
free_irq(idd->irq_eth, (void *)idd);
iounmap(idd->vma);
- release_region(idd->pma, IOC3_PCI_SIZE);
+ release_mem_region(idd->pma, IOC3_PCI_SIZE);
/* Disable IOC3 and relinquish */
pci_disable_device(pdev);
@@ -823,15 +815,15 @@ MODULE_DEVICE_TABLE(pci, ioc3_id_table);
*********************/
/* Module load */
-static int __devinit ioc3_init(void)
+static int __init ioc3_init(void)
{
if (ia64_platform_is("sn2"))
return pci_register_driver(&ioc3_driver);
- return 0;
+ return -ENODEV;
}
/* Module unload */
-static void __devexit ioc3_exit(void)
+static void __exit ioc3_exit(void)
{
pci_unregister_driver(&ioc3_driver);
}
@@ -843,9 +835,9 @@ MODULE_AUTHOR("Stanislaw Skowronek <skylark@linux-mips.org>");
MODULE_DESCRIPTION("PCI driver for SGI IOC3");
MODULE_LICENSE("GPL");
-EXPORT_SYMBOL(ioc3_register_submodule);
-EXPORT_SYMBOL(ioc3_unregister_submodule);
-EXPORT_SYMBOL(ioc3_ack);
-EXPORT_SYMBOL(ioc3_gpcr_set);
-EXPORT_SYMBOL(ioc3_disable);
-EXPORT_SYMBOL(ioc3_enable);
+EXPORT_SYMBOL_GPL(ioc3_register_submodule);
+EXPORT_SYMBOL_GPL(ioc3_unregister_submodule);
+EXPORT_SYMBOL_GPL(ioc3_ack);
+EXPORT_SYMBOL_GPL(ioc3_gpcr_set);
+EXPORT_SYMBOL_GPL(ioc3_disable);
+EXPORT_SYMBOL_GPL(ioc3_enable);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 18:50:08 +0000