/*
 * 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

#include <misc/cxl.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);
}

struct cxl_afu *cxl_afu_get(struct cxl_afu *afu);
void cxl_afu_put(struct cxl_afu *afu);
void cxl_slbia(struct mm_struct *mm);
bool cxl_pci_associate_default_context(struct pci_dev *dev, struct cxl_afu *afu);
void cxl_pci_disable_device(struct pci_dev *dev);
int cxl_cx4_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type);
void cxl_cx4_teardown_msi_irqs(struct pci_dev *pdev);

#else /* CONFIG_CXL_BASE */

static inline bool cxl_ctx_in_use(void) { return false; }
static inline struct cxl_afu *cxl_afu_get(struct cxl_afu *afu) { return NULL; }
static inline void cxl_afu_put(struct cxl_afu *afu) {}
static inline void cxl_slbia(struct mm_struct *mm) {}
static inline bool cxl_pci_associate_default_context(struct pci_dev *dev, struct cxl_afu *afu) { return false; }
static inline void cxl_pci_disable_device(struct pci_dev *dev) {}
static inline int cxl_cx4_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) { return -ENODEV; }
static inline void cxl_cx4_teardown_msi_irqs(struct pci_dev *pdev) {}

#endif /* CONFIG_CXL_BASE */

#endif
mp;id=4087a1fffe38106e10646606a27f10d40451862d'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/include/trace?h=nds-private-remove&amp;id=4087a1fffe38106e10646606a27f10d40451862d'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/trace?h=nds-private-remove&amp;id=4087a1fffe38106e10646606a27f10d40451862d'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/trace'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='4087a1fffe38106e10646606a27f10d40451862d'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=4087a1fffe38106e10646606a27f10d40451862d'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/include?h=nds-private-remove&amp;id=4087a1fffe38106e10646606a27f10d40451862d'>include</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/trace?h=nds-private-remove&amp;id=4087a1fffe38106e10646606a27f10d40451862d'>trace</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/include/trace?h=nds-private-remove&amp;id=4087a1fffe38106e10646606a27f10d40451862d&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>