cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

msi.h (1053B)


      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __ASM_GENERIC_MSI_H
      3#define __ASM_GENERIC_MSI_H
      4
      5#include <linux/types.h>
      6
      7#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
      8
      9#ifndef NUM_MSI_ALLOC_SCRATCHPAD_REGS
     10# define NUM_MSI_ALLOC_SCRATCHPAD_REGS	2
     11#endif
     12
     13struct msi_desc;
     14
     15/**
     16 * struct msi_alloc_info - Default structure for MSI interrupt allocation.
     17 * @desc:	Pointer to msi descriptor
     18 * @hwirq:	Associated hw interrupt number in the domain
     19 * @scratchpad:	Storage for implementation specific scratch data
     20 *
     21 * Architectures can provide their own implementation by not including
     22 * asm-generic/msi.h into their arch specific header file.
     23 */
     24typedef struct msi_alloc_info {
     25	struct msi_desc			*desc;
     26	irq_hw_number_t			hwirq;
     27	unsigned long			flags;
     28	union {
     29		unsigned long		ul;
     30		void			*ptr;
     31	} scratchpad[NUM_MSI_ALLOC_SCRATCHPAD_REGS];
     32} msi_alloc_info_t;
     33
     34/* Device generating MSIs is proxying for another device */
     35#define MSI_ALLOC_FLAGS_PROXY_DEVICE	(1UL << 0)
     36
     37#define GENERIC_MSI_DOMAIN_OPS		1
     38
     39#endif /* CONFIG_GENERIC_MSI_IRQ_DOMAIN */
     40
     41#endif