include/linux/msi.h

1 /* SPDX-License-Identifier: GPL-2.0 */
9 	u32	address_lo;	/* low 32 bits of msi message address */
10 	u32	address_hi;	/* high 32 bits of msi message address */
11 	u32	data;		/* 16 bits of msi message data */
33  * platform_msi_desc - Platform device specific msi descriptor data
35  * @msi_index:		The index of the MSI descriptor for multi MSI
43  * fsl_mc_msi_desc - FSL-MC device specific msi descriptor data
44  * @msi_index:		The index of the MSI descriptor
51  * ti_sci_inta_msi_desc - TISCI based INTA specific msi descriptor data
59  * struct msi_desc - Descriptor structure for MSI based interrupts
64  * @msg:	The last set MSI message cached for reuse
67  * @write_msi_msg:	Callback that may be called when the MSI message
71  * @masked:	[PCI MSI/X] Mask bits
72  * @is_msix:	[PCI MSI/X] True if MSI-X
73  * @multiple:	[PCI MSI/X] log2 num of messages allocated
74  * @multi_cap:	[PCI MSI/X] log2 num of messages supported
75  * @maskbit:	[PCI MSI/X] Mask-Pending bit supported?
76  * @is_64:	[PCI MSI/X] Address size: 0=32bit 1=64bit
77  * @entry_nr:	[PCI MSI/X] Entry which is described by this descriptor
78  * @default_irq:[PCI MSI/X] The default pre-assigned non-MSI irq
79  * @mask_pos:	[PCI MSI]   Mask register position
80  * @mask_base:	[PCI MSI-X] Mask register base address
81  * @platform:	[platform]  Platform device specific msi descriptor data
82  * @fsl_mc:	[fsl-mc]    FSL MC device specific msi descriptor data
83  * @inta:	[INTA]	    TISCI based INTA specific msi descriptor data
101 		/* PCI MSI/X specific data */
134 #define msi_desc_to_dev(desc)		((desc)->dev)
135 #define dev_to_msi_list(dev)		(&(dev)->msi_list)
146 	return desc->iommu_cookie;  in msi_desc_get_iommu_cookie()
152 	desc->iommu_cookie = iommu_cookie;  in msi_desc_set_iommu_cookie()
167 #define first_pci_msi_entry(pdev)	first_msi_entry(&(pdev)->dev)
169 	for_each_msi_entry((desc), &(pdev)->dev)
196  * The arch hooks to setup up msi irqs. Default functions are implemented
199  * drivers which depend on them via msi_controller based MSI handling.
214 	return -ENODEV;  in arch_setup_msi_irqs()
246 #include <asm/msi.h>
256  * struct msi_domain_ops - MSI interrupt domain callbacks
258  * @msi_init:		Domain specific init function for MSI interrupts
259  * @msi_free:		Domain specific function to free a MSI interrupts
263  * @set_desc:		Set the msi descriptor for an interrupt
279  * is initially for a wrapper around XENs seperate MSI universe which can't
290  * for specialized MSI irq domains which need extra work before and after
321  * struct msi_domain_info - MSI interrupt domain data
345 	 * Init non implemented ops callbacks with default MSI domain
350 	 * Init non implemented chip callbacks with default MSI chip
354 	/* Support multiple PCI MSI interrupts */
365 	/* Is level-triggered capable, using two messages */
390 /* When an MSI domain is used as an intermediate domain */