diff options
Diffstat (limited to 'kernel/irq/msi.c')
| -rw-r--r-- | kernel/irq/msi.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c index 396a067a8a56..5c8d43cdb0a3 100644 --- a/kernel/irq/msi.c +++ b/kernel/irq/msi.c @@ -15,6 +15,7 @@ #include <linux/mutex.h> #include <linux/pci.h> #include <linux/slab.h> +#include <linux/seq_file.h> #include <linux/sysfs.h> #include <linux/types.h> #include <linux/xarray.h> @@ -756,12 +757,30 @@ static int msi_domain_translate(struct irq_domain *domain, struct irq_fwspec *fw return info->ops->msi_translate(domain, fwspec, hwirq, type); } +#ifdef CONFIG_GENERIC_IRQ_DEBUGFS +static void msi_domain_debug_show(struct seq_file *m, struct irq_domain *d, + struct irq_data *irqd, int ind) +{ + struct msi_desc *desc = irq_data_get_msi_desc(irqd); + + if (!desc) + return; + + seq_printf(m, "\n%*saddress_hi: 0x%08x", ind + 1, "", desc->msg.address_hi); + seq_printf(m, "\n%*saddress_lo: 0x%08x", ind + 1, "", desc->msg.address_lo); + seq_printf(m, "\n%*smsg_data: 0x%08x\n", ind + 1, "", desc->msg.data); +} +#endif + static const struct irq_domain_ops msi_domain_ops = { .alloc = msi_domain_alloc, .free = msi_domain_free, .activate = msi_domain_activate, .deactivate = msi_domain_deactivate, .translate = msi_domain_translate, +#ifdef CONFIG_GENERIC_IRQ_DEBUGFS + .debug_show = msi_domain_debug_show, +#endif }; static irq_hw_number_t msi_domain_ops_get_hwirq(struct msi_domain_info *info, @@ -1143,7 +1162,7 @@ static bool msi_check_reservation_mode(struct irq_domain *domain, if (!(info->flags & MSI_FLAG_MUST_REACTIVATE)) return false; - if (IS_ENABLED(CONFIG_PCI_MSI) && pci_msi_ignore_mask) + if (info->flags & MSI_FLAG_NO_MASK) return false; /* |