mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 02:30:34 +02:00
13e7accb81
Adjust to reality and remove another layer of pointless Kconfig indirection. CONFIG_GENERIC_MSI_IRQ is good enough to serve all purposes. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20221111122014.524842979@linutronix.de
41 lines
1 KiB
C
41 lines
1 KiB
C
/* 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 GENERIC_MSI_DOMAIN_OPS 1
|
|
|
|
#endif /* CONFIG_GENERIC_MSI_IRQ */
|
|
|
|
#endif
|