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| author | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-01-11 13:28:19 -0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-01-11 13:28:19 -0200 |
| commit | 734d1ece37fbf3d2ddfc71bc6c69e0fe35f02542 (patch) | |
| tree | c4805dd7e746b1feb9e09e9849f3245d0b2c0c6b /include/linux/omap-iommu.h | |
| parent | 216c82c6aba63eeb49d7654b448e0d47bea255bb (diff) | |
| parent | 9931faca02c604c22335f5a935a501bb2ace6e20 (diff) | |
Merge tag 'v3.8-rc3' into v4l_for_linus
Linux 3.8-rc3
* tag 'v3.8-rc3': (11110 commits)
Linux 3.8-rc3
mm: reinstante dropped pmd_trans_splitting() check
cred: Remove tgcred pointer from struct cred
drm/ttm: fix fence locking in ttm_buffer_object_transfer
ARM: clps711x: Fix bad merge of clockevents setup
ARM: highbank: save and restore L2 cache and GIC on suspend
ARM: highbank: add a power request clear
ARM: highbank: fix secondary boot and hotplug
ARM: highbank: fix typos with hignbank in power request functions
ARM: dts: fix highbank cpu mpidr values
ARM: dts: add device_type prop to cpu nodes on Calxeda platforms
drm/prime: drop reference on imported dma-buf come from gem
xen/netfront: improve truesize tracking
ARM: mx5: Fix MX53 flexcan2 clock
ARM: OMAP2+: am33xx-hwmod: Fix wrongly terminated am33xx_usbss_mpu_irqs array
sctp: fix Kconfig bug in default cookie hmac selection
EDAC: Cleanup device deregistering path
EDAC: Fix EDAC Kconfig menu
EDAC: Fix kernel panic on module unloading
ALSA: hda - add mute LED for HP Pavilion 17 (Realtek codec)
...
Diffstat (limited to 'include/linux/omap-iommu.h')
| -rw-r--r-- | include/linux/omap-iommu.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/include/linux/omap-iommu.h b/include/linux/omap-iommu.h new file mode 100644 index 00000000000..cac78de09c0 --- /dev/null +++ b/include/linux/omap-iommu.h @@ -0,0 +1,52 @@ +/* + * omap iommu: simple virtual address space management + * + * Copyright (C) 2008-2009 Nokia Corporation + * + * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.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. + */ + +#ifndef _INTEL_IOMMU_H_ +#define _INTEL_IOMMU_H_ + +struct iovm_struct { + struct omap_iommu *iommu; /* iommu object which this belongs to */ + u32 da_start; /* area definition */ + u32 da_end; + u32 flags; /* IOVMF_: see below */ + struct list_head list; /* linked in ascending order */ + const struct sg_table *sgt; /* keep 'page' <-> 'da' mapping */ + void *va; /* mpu side mapped address */ +}; + +#define MMU_RAM_ENDIAN_SHIFT 9 +#define MMU_RAM_ENDIAN_LITTLE (0 << MMU_RAM_ENDIAN_SHIFT) +#define MMU_RAM_ELSZ_8 (0 << MMU_RAM_ELSZ_SHIFT) +#define IOVMF_ENDIAN_LITTLE MMU_RAM_ENDIAN_LITTLE +#define MMU_RAM_ELSZ_SHIFT 7 +#define IOVMF_ELSZ_8 MMU_RAM_ELSZ_8 + +struct iommu_domain; + +extern struct iovm_struct *omap_find_iovm_area(struct device *dev, u32 da); +extern u32 +omap_iommu_vmap(struct iommu_domain *domain, struct device *dev, u32 da, + const struct sg_table *sgt, u32 flags); +extern struct sg_table *omap_iommu_vunmap(struct iommu_domain *domain, + struct device *dev, u32 da); +extern u32 +omap_iommu_vmalloc(struct iommu_domain *domain, struct device *dev, + u32 da, size_t bytes, u32 flags); +extern void +omap_iommu_vfree(struct iommu_domain *domain, struct device *dev, + const u32 da); +extern void *omap_da_to_va(struct device *dev, u32 da); + +extern void omap_iommu_save_ctx(struct device *dev); +extern void omap_iommu_restore_ctx(struct device *dev); + +#endif |