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authorMaxim Shchetynin <maxim@de.ibm.com>2007-08-23 03:01:27 +1000
committerPaul Mackerras <paulus@samba.org>2007-08-25 16:58:27 +1000
commitfedcd2c53d838e7a69df699ce2a14e45d34d7f7f (patch)
tree24b1c61d889f836c31103ab67e1ce491fa7b42c9 /arch/powerpc
parent3addf55c9415f9da039947b33d064332137e49fe (diff)
[POWERPC] axonram: Module modification for latest firmware API changes
Firmware would not deliver two interrupt numbers in device-tree any more but only one, for correctable ECC, because uncorrectable ECC from now is handled by firmware itself. Changes in the axonram module are necessary because in the old version, if it is not allowed to fetch the second interrupt number from device-tree, it interpretes this as an error case and exits. Signed-off-by: Maximilian <maxim@de.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/sysdev/axonram.c43
1 files changed, 11 insertions, 32 deletions
diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c
index 2326d5dc575..eabbf82fda3 100644
--- a/arch/powerpc/sysdev/axonram.c
+++ b/arch/powerpc/sysdev/axonram.c
@@ -59,8 +59,7 @@
struct axon_ram_bank {
struct of_device *device;
struct gendisk *disk;
- unsigned int irq_correctable;
- unsigned int irq_uncorrectable;
+ unsigned int irq_id;
unsigned long ph_addr;
unsigned long io_addr;
unsigned long size;
@@ -93,16 +92,9 @@ axon_ram_irq_handler(int irq, void *dev)
BUG_ON(!bank);
- if (irq == bank->irq_correctable) {
- dev_err(&device->dev, "Correctable memory error occured\n");
- bank->ecc_counter++;
- return IRQ_HANDLED;
- } else if (irq == bank->irq_uncorrectable) {
- dev_err(&device->dev, "Uncorrectable memory error occured\n");
- panic("Critical ECC error on %s", device->node->full_name);
- }
-
- return IRQ_NONE;
+ dev_err(&device->dev, "Correctable memory error occured\n");
+ bank->ecc_counter++;
+ return IRQ_HANDLED;
}
/**
@@ -259,28 +251,18 @@ axon_ram_probe(struct of_device *device, const struct of_device_id *device_id)
blk_queue_hardsect_size(bank->disk->queue, AXON_RAM_SECTOR_SIZE);
add_disk(bank->disk);
- bank->irq_correctable = irq_of_parse_and_map(device->node, 0);
- bank->irq_uncorrectable = irq_of_parse_and_map(device->node, 1);
- if ((bank->irq_correctable <= 0) || (bank->irq_uncorrectable <= 0)) {
+ bank->irq_id = irq_of_parse_and_map(device->node, 0);
+ if (bank->irq_id == NO_IRQ) {
dev_err(&device->dev, "Cannot access ECC interrupt ID\n");
rc = -EFAULT;
goto failed;
}
- rc = request_irq(bank->irq_correctable, axon_ram_irq_handler,
- AXON_RAM_IRQ_FLAGS, bank->disk->disk_name, device);
- if (rc != 0) {
- dev_err(&device->dev, "Cannot register ECC interrupt handler\n");
- bank->irq_correctable = bank->irq_uncorrectable = 0;
- rc = -EFAULT;
- goto failed;
- }
-
- rc = request_irq(bank->irq_uncorrectable, axon_ram_irq_handler,
+ rc = request_irq(bank->irq_id, axon_ram_irq_handler,
AXON_RAM_IRQ_FLAGS, bank->disk->disk_name, device);
if (rc != 0) {
dev_err(&device->dev, "Cannot register ECC interrupt handler\n");
- bank->irq_uncorrectable = 0;
+ bank->irq_id = NO_IRQ;
rc = -EFAULT;
goto failed;
}
@@ -296,10 +278,8 @@ axon_ram_probe(struct of_device *device, const struct of_device_id *device_id)
failed:
if (bank != NULL) {
- if (bank->irq_uncorrectable > 0)
- free_irq(bank->irq_uncorrectable, device);
- if (bank->irq_correctable > 0)
- free_irq(bank->irq_correctable, device);
+ if (bank->irq_id != NO_IRQ)
+ free_irq(bank->irq_id, device);
if (bank->disk != NULL) {
if (bank->disk->queue != NULL)
blk_cleanup_queue(bank->disk->queue);
@@ -329,8 +309,7 @@ axon_ram_remove(struct of_device *device)
BUG_ON(!bank || !bank->disk);
device_remove_file(&device->dev, &dev_attr_ecc);
- free_irq(bank->irq_uncorrectable, device);
- free_irq(bank->irq_correctable, device);
+ free_irq(bank->irq_id, device);
blk_cleanup_queue(bank->disk->queue);
unregister_blkdev(bank->disk->major, bank->disk->disk_name);
del_gendisk(bank->disk);