49 lines
1000 B
C
49 lines
1000 B
C
/*
|
|
* Copyright 2014 IBM Corp.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
#ifndef _MISC_CXL_BASE_H
|
|
#define _MISC_CXL_BASE_H
|
|
|
|
#ifdef CONFIG_CXL_BASE
|
|
|
|
#define CXL_IRQ_RANGES 4
|
|
|
|
struct cxl_irq_ranges {
|
|
irq_hw_number_t offset[CXL_IRQ_RANGES];
|
|
irq_hw_number_t range[CXL_IRQ_RANGES];
|
|
};
|
|
|
|
extern atomic_t cxl_use_count;
|
|
|
|
static inline bool cxl_ctx_in_use(void)
|
|
{
|
|
return (atomic_read(&cxl_use_count) != 0);
|
|
}
|
|
|
|
static inline void cxl_ctx_get(void)
|
|
{
|
|
atomic_inc(&cxl_use_count);
|
|
}
|
|
|
|
static inline void cxl_ctx_put(void)
|
|
{
|
|
atomic_dec(&cxl_use_count);
|
|
}
|
|
|
|
void cxl_slbia(struct mm_struct *mm);
|
|
|
|
#else /* CONFIG_CXL_BASE */
|
|
|
|
static inline bool cxl_ctx_in_use(void) { return false; }
|
|
static inline void cxl_slbia(struct mm_struct *mm) {}
|
|
|
|
#endif /* CONFIG_CXL_BASE */
|
|
|
|
#endif
|