diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/sysdev/fsl_msi.c | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c index c84fbb1c1b4..b769982612a 100644 --- a/arch/powerpc/sysdev/fsl_msi.c +++ b/arch/powerpc/sysdev/fsl_msi.c @@ -22,6 +22,7 @@ #include <asm/prom.h> #include <asm/hw_irq.h> #include <asm/ppc-pci.h> +#include <asm/mpic.h> #include "fsl_msi.h" struct fsl_msi_feature { @@ -29,6 +30,10 @@ struct fsl_msi_feature { u32 msiir_offset; }; +struct fsl_msi_cascade_data { + struct fsl_msi *msi_data; + int index; +}; static inline u32 fsl_msi_read(u32 __iomem *base, unsigned int reg) { @@ -102,7 +107,7 @@ static void fsl_teardown_msi_irqs(struct pci_dev *pdev) list_for_each_entry(entry, &pdev->msi_list, list) { if (entry->irq == NO_IRQ) continue; - msi_data = get_irq_chip_data(entry->irq); + msi_data = get_irq_data(entry->irq); set_irq_msi(entry->irq, NULL); msi_bitmap_free_hwirqs(&msi_data->bitmap, virq_to_hw(entry->irq), 1); @@ -133,7 +138,7 @@ static void fsl_compose_msi_msg(struct pci_dev *pdev, int hwirq, static int fsl_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) { - int rc, hwirq; + int rc, hwirq = NO_IRQ; unsigned int virq; struct msi_desc *entry; struct msi_msg msg; @@ -159,6 +164,7 @@ static int fsl_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) rc = -ENOSPC; goto out_free; } + set_irq_data(virq, msi_data); set_irq_msi(virq, entry); fsl_compose_msi_msg(pdev, hwirq, &msg, msi_data); @@ -173,11 +179,15 @@ out_free: static void fsl_msi_cascade(unsigned int irq, struct irq_desc *desc) { unsigned int cascade_irq; - struct fsl_msi *msi_data = get_irq_chip_data(irq); + struct fsl_msi *msi_data; int msir_index = -1; u32 msir_value = 0; u32 intr_index; u32 have_shift = 0; + struct fsl_msi_cascade_data *cascade_data; + + cascade_data = (struct fsl_msi_cascade_data *)get_irq_data(irq); + msi_data = cascade_data->msi_data; raw_spin_lock(&desc->lock); if ((msi_data->feature & FSL_PIC_IP_MASK) == FSL_PIC_IP_IPIC) { @@ -192,7 +202,7 @@ static void fsl_msi_cascade(unsigned int irq, struct irq_desc *desc) if (unlikely(desc->status & IRQ_INPROGRESS)) goto unlock; - msir_index = (int)desc->handler_data; + msir_index = cascade_data->index; if (msir_index >= NR_MSI_REG) cascade_irq = NO_IRQ; @@ -244,6 +254,7 @@ static int __devinit fsl_of_msi_probe(struct of_device *dev, int virt_msir; const u32 *p; struct fsl_msi_feature *features = match->data; + struct fsl_msi_cascade_data *cascade_data = NULL; printk(KERN_DEBUG "Setting up Freescale MSI support\n"); @@ -310,9 +321,19 @@ static int __devinit fsl_of_msi_probe(struct of_device *dev, break; virt_msir = irq_of_parse_and_map(dev->node, i); if (virt_msir != NO_IRQ) { - set_irq_data(virt_msir, (void *)i); + cascade_data = kzalloc( + sizeof(struct fsl_msi_cascade_data), + GFP_KERNEL); + if (!cascade_data) { + dev_err(&dev->dev, + "No memory for MSI cascade data\n"); + err = -ENOMEM; + goto error_out; + } + cascade_data->index = i; + cascade_data->msi_data = msi; + set_irq_data(virt_msir, (void *)cascade_data); set_irq_chained_handler(virt_msir, fsl_msi_cascade); - set_irq_chip_data(virt_msir, msi); } } |