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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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1.1 kB · 42 lines
C
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12345678910111213141516171819202122232425262728293031323334353637383940414243/* SPDX-License-Identifier: GPL-2.0 */#ifndef __ASM_GENERIC_MSI_H#define __ASM_GENERIC_MSI_H
#include <linux/types.h>
#ifdef CONFIG_GENERIC_MSI_IRQ
#ifndef NUM_MSI_ALLOC_SCRATCHPAD_REGS# define NUM_MSI_ALLOC_SCRATCHPAD_REGS 2#endif
struct msi_desc;
/** * struct msi_alloc_info - Default structure for MSI interrupt allocation. * @desc: Pointer to msi descriptor * @hwirq: Associated hw interrupt number in the domain * @scratchpad: Storage for implementation specific scratch data * * Architectures can provide their own implementation by not including * asm-generic/msi.h into their arch specific header file. */typedef struct msi_alloc_info { struct msi_desc *desc; irq_hw_number_t hwirq; unsigned long flags; union { unsigned long ul; void *ptr; } scratchpad[NUM_MSI_ALLOC_SCRATCHPAD_REGS];} msi_alloc_info_t;
/* Device generating MSIs is proxying for another device */#define MSI_ALLOC_FLAGS_PROXY_DEVICE (1UL << 0)#define MSI_ALLOC_FLAGS_FIXED_MSG_DATA (1UL << 1)
#define GENERIC_MSI_DOMAIN_OPS 1
#endif /* CONFIG_GENERIC_MSI_IRQ */
#endif