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| author | David S. Miller <davem@sunset.davemloft.net> | 2007-07-27 22:39:14 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-07-30 00:27:34 -0700 |
| commit | ad7ad57c6127042c411353dddb723765964815db (patch) | |
| tree | 600484291d9cfa68d54dc9b230f5bd115f495213 /include/asm-sparc64/iommu.h | |
| parent | c7f439b99efbea74c70a5531f92566db5a6731f2 (diff) | |
| download | op-kernel-dev-ad7ad57c6127042c411353dddb723765964815db.zip op-kernel-dev-ad7ad57c6127042c411353dddb723765964815db.tar.gz | |
[SPARC64]: Fix conflicts in SBUS/PCI/EBUS/ISA DMA handling.
Fully unify all of the DMA ops so that subordinate bus types to
the DMA operation providers (such as ebus, isa, of_device) can
work transparently.
Basically, we just make sure that for every system device we
create, the dev->archdata 'iommu' and 'stc' fields are filled
in.
Then we have two platform variants of the DMA ops, one for SUN4U which
actually programs the real hardware, and one for SUN4V which makes
hypervisor calls.
This also fixes the crashes in parport_pc on sparc64, reported by
Meelis Roos.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64/iommu.h')
| -rw-r--r-- | include/asm-sparc64/iommu.h | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/include/asm-sparc64/iommu.h b/include/asm-sparc64/iommu.h index 0b1813f..9eac667 100644 --- a/include/asm-sparc64/iommu.h +++ b/include/asm-sparc64/iommu.h @@ -1,7 +1,6 @@ -/* $Id: iommu.h,v 1.10 2001/03/08 09:55:56 davem Exp $ - * iommu.h: Definitions for the sun5 IOMMU. +/* iommu.h: Definitions for the sun5 IOMMU. * - * Copyright (C) 1996, 1999 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1996, 1999, 2007 David S. Miller (davem@davemloft.net) */ #ifndef _SPARC64_IOMMU_H #define _SPARC64_IOMMU_H @@ -33,6 +32,7 @@ struct iommu { unsigned long iommu_tsbbase; unsigned long iommu_flush; unsigned long iommu_flushinv; + unsigned long iommu_tags; unsigned long iommu_ctxflush; unsigned long write_complete_reg; unsigned long dummy_page; @@ -54,4 +54,7 @@ struct strbuf { volatile unsigned long __flushflag_buf[(64+(64-1)) / sizeof(long)]; }; -#endif /* !(_SPARC_IOMMU_H) */ +extern int iommu_table_init(struct iommu *iommu, int tsbsize, + u32 dma_offset, u32 dma_addr_mask); + +#endif /* !(_SPARC64_IOMMU_H) */ |
