diff options
| author | Joerg Roedel <joerg.roedel@amd.com> | 2012-03-30 11:47:00 -0700 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2012-05-07 14:34:59 +0200 |
| commit | 736baef4472d00574089f295bc759ac002b9558c (patch) | |
| tree | d4c9c69b1a0eecd6d87b3378a27396384e4b08f0 /arch/x86/include | |
| parent | eef93fdb7cd41ae36794db0e765059dc1039e940 (diff) | |
iommu/vt-d: Make intr-remapping initialization generic
This patch introduces irq_remap_ops to hold implementation
specific function pointer to handle interrupt remapping. As
the first part the initialization functions for VT-d are
converted to these ops.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/intr_remapping.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/arch/x86/include/asm/intr_remapping.h b/arch/x86/include/asm/intr_remapping.h new file mode 100644 index 000000000000..207c605dbdf5 --- /dev/null +++ b/arch/x86/include/asm/intr_remapping.h @@ -0,0 +1,45 @@ +/* + * Copyright (C) 2012 Advanced Micro Devices, Inc. + * Author: Joerg Roedel <joerg.roedel@amd.com> + * + * 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 the interface of the interrupt remapping code to + * the x86 interrupt management code. + */ + +#ifndef __X86_INTR_REMAPPING_H +#define __X86_INTR_REMAPPING_H + +#ifdef CONFIG_IRQ_REMAP + +extern int intr_remapping_enabled; + +extern void setup_intr_remapping(void); +extern int intr_remapping_supported(void); +extern int intr_hardware_init(void); +extern int intr_hardware_enable(void); + +#else /* CONFIG_IRQ_REMAP */ + +#define intr_remapping_enabled 0 + +static inline void setup_intr_remapping(void) { } +static inline int intr_remapping_supported(void) { return 0; } +static inline int intr_hardware_init(void) { return -ENODEV; } +static inline int intr_hardware_enable(void) { return -ENODEV; } + +#endif /* CONFIG_IRQ_REMAP */ + +#endif /* __X86_INTR_REMAPPING_H */ |