PCI/MSI: Move cached entry functions to irq core
Required to support non PCI based MSI. [ tglx: Extracted from Jiangs patch series ] Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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@ -4,6 +4,7 @@
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config PCI_MSI
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bool "Message Signaled Interrupts (MSI and MSI-X)"
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depends on PCI
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select GENERIC_MSI_IRQ
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help
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This allows device drivers to enable MSI (Message Signaled
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Interrupts). Message Signaled Interrupts enable a device to
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@ -290,24 +290,6 @@ void __pci_read_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
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}
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}
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void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
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{
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/* Assert that the cache is valid, assuming that
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* valid messages are not all-zeroes. */
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BUG_ON(!(entry->msg.address_hi | entry->msg.address_lo |
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entry->msg.data));
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*msg = entry->msg;
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}
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void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg)
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{
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struct msi_desc *entry = irq_get_msi_desc(irq);
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__get_cached_msi_msg(entry, msg);
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}
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EXPORT_SYMBOL_GPL(get_cached_msi_msg);
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void __pci_write_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
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{
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if (entry->dev->current_state != PCI_D0) {
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@ -18,6 +18,19 @@
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/* Temparory solution for building, will be removed later */
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#include <linux/pci.h>
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void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
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{
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*msg = entry->msg;
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}
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void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg)
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{
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struct msi_desc *entry = irq_get_msi_desc(irq);
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__get_cached_msi_msg(entry, msg);
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}
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EXPORT_SYMBOL_GPL(get_cached_msi_msg);
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#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
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/**
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* msi_domain_set_affinity - Generic affinity setter function for MSI domains
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