From fedcd2c53d838e7a69df699ce2a14e45d34d7f7f Mon Sep 17 00:00:00 2001 From: Maxim Shchetynin Date: Thu, 23 Aug 2007 03:01:27 +1000 Subject: [PATCH] [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 Signed-off-by: Arnd Bergmann Signed-off-by: Paul Mackerras --- arch/powerpc/sysdev/axonram.c | 43 +++++++++-------------------------- 1 file changed, 11 insertions(+), 32 deletions(-) diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c index 2326d5dc5752..eabbf82fda3a 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, + 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_correctable = bank->irq_uncorrectable = 0; - rc = -EFAULT; - goto failed; - } - - rc = request_irq(bank->irq_uncorrectable, 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);