diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2020-08-26 14:16:46 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-09-16 17:52:35 +0300 |
| commit | 3b9c1d377d67072d1d8a2373b4969103cca00dab (patch) | |
| tree | bf9aa6dbe439906e75149bc7ccf30938a6771fc2 /arch/x86 | |
| parent | dfb9eb7cf6cd0c0b0f2a1111fcc47b0a297b097d (diff) | |
| download | linux-3b9c1d377d67072d1d8a2373b4969103cca00dab.tar.xz | |
x86/msi: Consolidate MSI allocation
Convert the interrupt remap drivers to retrieve the pci device from the msi
descriptor and use info::hwirq.
This is the first step to prepare x86 for using the generic MSI domain ops.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Wei Liu <wei.liu@kernel.org>
Acked-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20200826112332.466405395@linutronix.de
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/hw_irq.h | 8 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/msi.c | 7 |
2 files changed, 3 insertions, 12 deletions
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h index dd0b479ad980..a4aeeaace040 100644 --- a/arch/x86/include/asm/hw_irq.h +++ b/arch/x86/include/asm/hw_irq.h @@ -86,14 +86,6 @@ struct irq_alloc_info { union { struct ioapic_alloc_info ioapic; struct uv_alloc_info uv; - - int unused; -#ifdef CONFIG_PCI_MSI - struct { - struct pci_dev *msi_dev; - irq_hw_number_t msi_hwirq; - }; -#endif }; }; diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c index 6d7655b07f84..6b490d9a2537 100644 --- a/arch/x86/kernel/apic/msi.c +++ b/arch/x86/kernel/apic/msi.c @@ -188,7 +188,6 @@ int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type) init_irq_alloc_info(&info, NULL); info.type = X86_IRQ_ALLOC_TYPE_PCI_MSI; - info.msi_dev = dev; domain = irq_remapping_get_irq_domain(&info); if (domain == NULL) @@ -207,7 +206,7 @@ void native_teardown_msi_irq(unsigned int irq) static irq_hw_number_t pci_msi_get_hwirq(struct msi_domain_info *info, msi_alloc_info_t *arg) { - return arg->msi_hwirq; + return arg->hwirq; } int pci_msi_prepare(struct irq_domain *domain, struct device *dev, int nvec, @@ -217,7 +216,6 @@ int pci_msi_prepare(struct irq_domain *domain, struct device *dev, int nvec, struct msi_desc *desc = first_pci_msi_entry(pdev); init_irq_alloc_info(arg, NULL); - arg->msi_dev = pdev; if (desc->msi_attrib.is_msix) { arg->type = X86_IRQ_ALLOC_TYPE_PCI_MSIX; } else { @@ -231,7 +229,8 @@ EXPORT_SYMBOL_GPL(pci_msi_prepare); void pci_msi_set_desc(msi_alloc_info_t *arg, struct msi_desc *desc) { - arg->msi_hwirq = pci_msi_domain_calc_hwirq(desc); + arg->desc = desc; + arg->hwirq = pci_msi_domain_calc_hwirq(desc); } EXPORT_SYMBOL_GPL(pci_msi_set_desc); |