mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-15 16:53:54 +08:00
3d9b98f4ec
Set Posted-Interrupts capability for Intel iommu when Interrupt Remapping is enabled, clear it when disabled. Signed-off-by: Feng Wu <feng.wu@intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Joerg Roedel <joro@8bytes.org> Cc: jiang.liu@linux.intel.com Cc: iommu@lists.linux-foundation.org Cc: dwmw2@infradead.org Link: http://lkml.kernel.org/r/1433827237-3382-9-git-send-email-feng.wu@intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/*
|
|
* Copyright (C) 2012 Advanced Micro Devices, Inc.
|
|
* Author: Joerg Roedel <jroedel@suse.de>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 as published
|
|
* by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* This header file contains stuff that is shared between different interrupt
|
|
* remapping drivers but with no need to be visible outside of the IOMMU layer.
|
|
*/
|
|
|
|
#ifndef __IRQ_REMAPPING_H
|
|
#define __IRQ_REMAPPING_H
|
|
|
|
#ifdef CONFIG_IRQ_REMAP
|
|
|
|
struct irq_data;
|
|
struct msi_msg;
|
|
struct irq_domain;
|
|
struct irq_alloc_info;
|
|
|
|
extern int irq_remap_broken;
|
|
extern int disable_sourceid_checking;
|
|
extern int no_x2apic_optout;
|
|
extern int irq_remapping_enabled;
|
|
|
|
extern int disable_irq_post;
|
|
|
|
struct irq_remap_ops {
|
|
/* The supported capabilities */
|
|
int capability;
|
|
|
|
/* Initializes hardware and makes it ready for remapping interrupts */
|
|
int (*prepare)(void);
|
|
|
|
/* Enables the remapping hardware */
|
|
int (*enable)(void);
|
|
|
|
/* Disables the remapping hardware */
|
|
void (*disable)(void);
|
|
|
|
/* Reenables the remapping hardware */
|
|
int (*reenable)(int);
|
|
|
|
/* Enable fault handling */
|
|
int (*enable_faulting)(void);
|
|
|
|
/* Get the irqdomain associated the IOMMU device */
|
|
struct irq_domain *(*get_ir_irq_domain)(struct irq_alloc_info *);
|
|
|
|
/* Get the MSI irqdomain associated with the IOMMU device */
|
|
struct irq_domain *(*get_irq_domain)(struct irq_alloc_info *);
|
|
};
|
|
|
|
extern struct irq_remap_ops intel_irq_remap_ops;
|
|
extern struct irq_remap_ops amd_iommu_irq_ops;
|
|
|
|
extern void ir_ack_apic_edge(struct irq_data *data);
|
|
|
|
#else /* CONFIG_IRQ_REMAP */
|
|
|
|
#define irq_remapping_enabled 0
|
|
#define irq_remap_broken 0
|
|
#define disable_irq_post 1
|
|
|
|
#endif /* CONFIG_IRQ_REMAP */
|
|
|
|
#endif /* __IRQ_REMAPPING_H */
|