diff options
Diffstat (limited to 'drivers/iommu/amd_iommu_proto.h')
| -rw-r--r-- | drivers/iommu/amd_iommu_proto.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu_proto.h b/drivers/iommu/amd_iommu_proto.h new file mode 100644 index 000000000000..7ffaa64410b0 --- /dev/null +++ b/drivers/iommu/amd_iommu_proto.h @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2009-2010 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 + */ + +#ifndef _ASM_X86_AMD_IOMMU_PROTO_H +#define _ASM_X86_AMD_IOMMU_PROTO_H + +#include "amd_iommu_types.h" + +extern int amd_iommu_init_dma_ops(void); +extern int amd_iommu_init_passthrough(void); +extern irqreturn_t amd_iommu_int_thread(int irq, void *data); +extern irqreturn_t amd_iommu_int_handler(int irq, void *data); +extern void amd_iommu_apply_erratum_63(u16 devid); +extern void amd_iommu_reset_cmd_buffer(struct amd_iommu *iommu); +extern int amd_iommu_init_devices(void); +extern void amd_iommu_uninit_devices(void); +extern void amd_iommu_init_notifier(void); +extern void amd_iommu_init_api(void); +#ifndef CONFIG_AMD_IOMMU_STATS + +static inline void amd_iommu_stats_init(void) { } + +#endif /* !CONFIG_AMD_IOMMU_STATS */ + +static inline bool is_rd890_iommu(struct pci_dev *pdev) +{ + return (pdev->vendor == PCI_VENDOR_ID_ATI) && + (pdev->device == PCI_DEVICE_ID_RD890_IOMMU); +} + +static inline bool iommu_feature(struct amd_iommu *iommu, u64 f) +{ + if (!(iommu->cap & (1 << IOMMU_CAP_EFR))) + return false; + + return !!(iommu->features & f); +} + +#endif /* _ASM_X86_AMD_IOMMU_PROTO_H */ |