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path: root/drivers/macintosh/macio_asic.c
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Diffstat (limited to 'drivers/macintosh/macio_asic.c')
-rw-r--r--drivers/macintosh/macio_asic.c134
1 files changed, 99 insertions, 35 deletions
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index ec9e5f32f0a..4f12c6f01fe 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -24,6 +24,8 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
#include <asm/machdep.h>
#include <asm/macio.h>
@@ -33,20 +35,18 @@
#undef DEBUG
-#define MAX_NODE_NAME_SIZE (BUS_ID_SIZE - 12)
+#define MAX_NODE_NAME_SIZE (20 - 12)
static struct macio_chip *macio_on_hold;
static int macio_bus_match(struct device *dev, struct device_driver *drv)
{
- struct macio_dev * macio_dev = to_macio_device(dev);
- struct macio_driver * macio_drv = to_macio_driver(drv);
- const struct of_device_id * matches = macio_drv->match_table;
+ const struct of_device_id * matches = drv->of_match_table;
if (!matches)
return 0;
- return of_match_device(matches, &macio_dev->ofdev) != NULL;
+ return of_match_device(matches, dev) != NULL;
}
struct macio_dev *macio_dev_get(struct macio_dev *dev)
@@ -84,7 +84,7 @@ static int macio_device_probe(struct device *dev)
macio_dev_get(macio_dev);
- match = of_match_device(drv->match_table, &macio_dev->ofdev);
+ match = of_match_device(drv->driver.of_match_table, dev);
if (match)
error = drv->probe(macio_dev, match);
if (error)
@@ -139,7 +139,7 @@ extern struct device_attribute macio_dev_attrs[];
struct bus_type macio_bus_type = {
.name = "macio",
.match = macio_bus_match,
- .uevent = of_device_uevent,
+ .uevent = of_device_uevent_modalias,
.probe = macio_device_probe,
.remove = macio_device_remove,
.shutdown = macio_device_shutdown,
@@ -240,7 +240,7 @@ static void macio_create_fixup_irq(struct macio_dev *dev, int index,
if (irq != NO_IRQ) {
dev->interrupt[index].start = irq;
dev->interrupt[index].flags = IORESOURCE_IRQ;
- dev->interrupt[index].name = dev->ofdev.dev.bus_id;
+ dev->interrupt[index].name = dev_name(&dev->ofdev.dev);
}
if (dev->n_interrupts <= index)
dev->n_interrupts = index + 1;
@@ -248,7 +248,7 @@ static void macio_create_fixup_irq(struct macio_dev *dev, int index,
static void macio_add_missing_resources(struct macio_dev *dev)
{
- struct device_node *np = dev->ofdev.node;
+ struct device_node *np = dev->ofdev.dev.of_node;
unsigned int irq_base;
/* Gatwick has some missing interrupts on child nodes */
@@ -289,21 +289,22 @@ static void macio_add_missing_resources(struct macio_dev *dev)
static void macio_setup_interrupts(struct macio_dev *dev)
{
- struct device_node *np = dev->ofdev.node;
+ struct device_node *np = dev->ofdev.dev.of_node;
unsigned int irq;
int i = 0, j = 0;
for (;;) {
- struct resource *res = &dev->interrupt[j];
+ struct resource *res;
if (j >= MACIO_DEV_COUNT_IRQS)
break;
+ res = &dev->interrupt[j];
irq = irq_of_parse_and_map(np, i++);
if (irq == NO_IRQ)
break;
res->start = irq;
res->flags = IORESOURCE_IRQ;
- res->name = dev->ofdev.dev.bus_id;
+ res->name = dev_name(&dev->ofdev.dev);
if (macio_resource_quirks(np, res, i - 1)) {
memset(res, 0, sizeof(struct resource));
continue;
@@ -316,16 +317,17 @@ static void macio_setup_interrupts(struct macio_dev *dev)
static void macio_setup_resources(struct macio_dev *dev,
struct resource *parent_res)
{
- struct device_node *np = dev->ofdev.node;
+ struct device_node *np = dev->ofdev.dev.of_node;
struct resource r;
int index;
for (index = 0; of_address_to_resource(np, index, &r) == 0; index++) {
- struct resource *res = &dev->resource[index];
+ struct resource *res;
if (index >= MACIO_DEV_COUNT_RESOURCES)
break;
+ res = &dev->resource[index];
*res = r;
- res->name = dev->ofdev.dev.bus_id;
+ res->name = dev_name(&dev->ofdev.dev);
if (macio_resource_quirks(np, res, index)) {
memset(res, 0, sizeof(struct resource));
@@ -338,7 +340,7 @@ static void macio_setup_resources(struct macio_dev *dev,
if (insert_resource(parent_res, res)) {
printk(KERN_WARNING "Can't request resource "
"%d for MacIO device %s\n",
- index, dev->ofdev.dev.bus_id);
+ index, dev_name(&dev->ofdev.dev));
}
}
dev->n_resources = index;
@@ -371,12 +373,27 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip,
dev->bus = &chip->lbus;
dev->media_bay = in_bay;
- dev->ofdev.node = np;
- dev->ofdev.dma_mask = 0xffffffffUL;
- dev->ofdev.dev.dma_mask = &dev->ofdev.dma_mask;
+ dev->ofdev.dev.of_node = np;
+ dev->ofdev.archdata.dma_mask = 0xffffffffUL;
+ dev->ofdev.dev.dma_mask = &dev->ofdev.archdata.dma_mask;
dev->ofdev.dev.parent = parent;
dev->ofdev.dev.bus = &macio_bus_type;
dev->ofdev.dev.release = macio_release_dev;
+ dev->ofdev.dev.dma_parms = &dev->dma_parms;
+
+ /* Standard DMA paremeters */
+ dma_set_max_seg_size(&dev->ofdev.dev, 65536);
+ dma_set_seg_boundary(&dev->ofdev.dev, 0xffffffff);
+
+#ifdef CONFIG_PCI
+ /* Set the DMA ops to the ones from the PCI device, this could be
+ * fishy if we didn't know that on PowerMac it's always direct ops
+ * or iommu ops that will work fine
+ *
+ * To get all the fields, copy all archdata
+ */
+ dev->ofdev.dev.archdata = chip->lbus.pdev->dev.archdata;
+#endif /* CONFIG_PCI */
#ifdef DEBUG
printk("preparing mdev @%p, ofdev @%p, dev @%p, kobj @%p\n",
@@ -385,8 +402,8 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip,
/* MacIO itself has a different reg, we use it's PCI base */
if (np == chip->of_node) {
- sprintf(dev->ofdev.dev.bus_id, "%1d.%08x:%.*s",
- chip->lbus.index,
+ dev_set_name(&dev->ofdev.dev, "%1d.%08x:%.*s",
+ chip->lbus.index,
#ifdef CONFIG_PCI
(unsigned int)pci_resource_start(chip->lbus.pdev, 0),
#else
@@ -395,9 +412,9 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip,
MAX_NODE_NAME_SIZE, np->name);
} else {
reg = of_get_property(np, "reg", NULL);
- sprintf(dev->ofdev.dev.bus_id, "%1d.%08x:%.*s",
- chip->lbus.index,
- reg ? *reg : 0, MAX_NODE_NAME_SIZE, np->name);
+ dev_set_name(&dev->ofdev.dev, "%1d.%08x:%.*s",
+ chip->lbus.index,
+ reg ? *reg : 0, MAX_NODE_NAME_SIZE, np->name);
}
/* Setup interrupts & resources */
@@ -408,7 +425,7 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip,
/* Register with core */
if (of_device_register(&dev->ofdev) != 0) {
printk(KERN_DEBUG"macio: device registration error for %s!\n",
- dev->ofdev.dev.bus_id);
+ dev_name(&dev->ofdev.dev));
kfree(dev);
return NULL;
}
@@ -476,9 +493,9 @@ static void macio_pci_add_devices(struct macio_chip *chip)
}
/* Add media bay devices if any */
- if (mbdev)
- for (np = NULL; (np = of_get_next_child(mbdev->ofdev.node, np))
- != NULL;) {
+ if (mbdev) {
+ pnode = mbdev->ofdev.dev.of_node;
+ for (np = NULL; (np = of_get_next_child(pnode, np)) != NULL;) {
if (macio_skip_device(np))
continue;
of_node_get(np);
@@ -486,11 +503,12 @@ static void macio_pci_add_devices(struct macio_chip *chip)
mbdev, root_res) == NULL)
of_node_put(np);
}
+ }
/* Add serial ports if any */
if (sdev) {
- for (np = NULL; (np = of_get_next_child(sdev->ofdev.node, np))
- != NULL;) {
+ pnode = sdev->ofdev.dev.of_node;
+ for (np = NULL; (np = of_get_next_child(pnode, np)) != NULL;) {
if (macio_skip_device(np))
continue;
of_node_get(np);
@@ -509,7 +527,6 @@ static void macio_pci_add_devices(struct macio_chip *chip)
int macio_register_driver(struct macio_driver *drv)
{
/* initialize common driver fields */
- drv->driver.name = drv->name;
drv->driver.bus = &macio_bus_type;
/* register with core */
@@ -525,6 +542,42 @@ void macio_unregister_driver(struct macio_driver *drv)
driver_unregister(&drv->driver);
}
+/* Managed MacIO resources */
+struct macio_devres {
+ u32 res_mask;
+};
+
+static void maciom_release(struct device *gendev, void *res)
+{
+ struct macio_dev *dev = to_macio_device(gendev);
+ struct macio_devres *dr = res;
+ int i, max;
+
+ max = min(dev->n_resources, 32);
+ for (i = 0; i < max; i++) {
+ if (dr->res_mask & (1 << i))
+ macio_release_resource(dev, i);
+ }
+}
+
+int macio_enable_devres(struct macio_dev *dev)
+{
+ struct macio_devres *dr;
+
+ dr = devres_find(&dev->ofdev.dev, maciom_release, NULL, NULL);
+ if (!dr) {
+ dr = devres_alloc(maciom_release, sizeof(*dr), GFP_KERNEL);
+ if (!dr)
+ return -ENOMEM;
+ }
+ return devres_get(&dev->ofdev.dev, dr, NULL, NULL) != NULL;
+}
+
+static struct macio_devres * find_macio_dr(struct macio_dev *dev)
+{
+ return devres_find(&dev->ofdev.dev, maciom_release, NULL, NULL);
+}
+
/**
* macio_request_resource - Request an MMIO resource
* @dev: pointer to the device holding the resource
@@ -542,6 +595,8 @@ void macio_unregister_driver(struct macio_driver *drv)
int macio_request_resource(struct macio_dev *dev, int resource_no,
const char *name)
{
+ struct macio_devres *dr = find_macio_dr(dev);
+
if (macio_resource_len(dev, resource_no) == 0)
return 0;
@@ -549,6 +604,9 @@ int macio_request_resource(struct macio_dev *dev, int resource_no,
macio_resource_len(dev, resource_no),
name))
goto err_out;
+
+ if (dr && resource_no < 32)
+ dr->res_mask |= 1 << resource_no;
return 0;
@@ -558,7 +616,7 @@ err_out:
resource_no,
macio_resource_len(dev, resource_no),
macio_resource_start(dev, resource_no),
- dev->ofdev.dev.bus_id);
+ dev_name(&dev->ofdev.dev));
return -EBUSY;
}
@@ -569,10 +627,14 @@ err_out:
*/
void macio_release_resource(struct macio_dev *dev, int resource_no)
{
+ struct macio_devres *dr = find_macio_dr(dev);
+
if (macio_resource_len(dev, resource_no) == 0)
return;
release_mem_region(macio_resource_start(dev, resource_no),
macio_resource_len(dev, resource_no));
+ if (dr && resource_no < 32)
+ dr->res_mask &= ~(1 << resource_no);
}
/**
@@ -619,7 +681,7 @@ void macio_release_resources(struct macio_dev *dev)
#ifdef CONFIG_PCI
-static int __devinit macio_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+static int macio_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct device_node* np;
struct macio_chip* chip;
@@ -679,7 +741,7 @@ static int __devinit macio_pci_probe(struct pci_dev *pdev, const struct pci_devi
return 0;
}
-static void __devexit macio_pci_remove(struct pci_dev* pdev)
+static void macio_pci_remove(struct pci_dev* pdev)
{
panic("removing of macio-asic not supported !\n");
}
@@ -688,7 +750,7 @@ static void __devexit macio_pci_remove(struct pci_dev* pdev)
* MacIO is matched against any Apple ID, it's probe() function
* will then decide wether it applies or not
*/
-static const struct pci_device_id __devinitdata pci_ids [] = { {
+static const struct pci_device_id pci_ids[] = { {
.vendor = PCI_VENDOR_ID_APPLE,
.device = PCI_ANY_ID,
.subvendor = PCI_ANY_ID,
@@ -731,3 +793,5 @@ EXPORT_SYMBOL(macio_request_resource);
EXPORT_SYMBOL(macio_release_resource);
EXPORT_SYMBOL(macio_request_resources);
EXPORT_SYMBOL(macio_release_resources);
+EXPORT_SYMBOL(macio_enable_devres);
+
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 02:03:13 +0000