mirror of
https://github.com/torvalds/linux.git
synced 2024-12-15 15:41:58 +00:00
33 lines
799 B
C
33 lines
799 B
C
|
#ifndef __ASM_GENERIC_MSI_H
|
||
|
|
#define __ASM_GENERIC_MSI_H
|
||
|
|
|
||
|
|
#include <linux/types.h>
|
||
|
|
|
||
|
|
#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;
|
||
|
|
union {
|
||
|
|
unsigned long ul;
|
||
|
|
void *ptr;
|
||
|
|
} scratchpad[NUM_MSI_ALLOC_SCRATCHPAD_REGS];
|
||
|
|
} msi_alloc_info_t;
|
||
|
|
|
||
|
|
#define GENERIC_MSI_DOMAIN_OPS 1
|
||
|
|
|
||
|
|
#endif
|