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| author | David S. Miller <davem@sunset.davemloft.net> | 2007-05-03 04:31:36 +0400 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-05-07 09:44:06 +0400 |
| commit | 861fe90656b8e20d750d73c57088dc52d316ce7b (patch) | |
| tree | 3f7df274478242ecf9f4186637c9cc38f59b5b8a /include/asm-sparc64 | |
| parent | 4cad69174f385c183b2bcb369fb4304d8624ab96 (diff) | |
| download | linux-861fe90656b8e20d750d73c57088dc52d316ce7b.tar.xz | |
[SPARC64]: SUN4U PCI-E controller support.
Some minor refactoring in the generic code was necessary for
this:
1) This controller requires 8-byte access to the interrupt map
and clear register. They are 64-bits on all the other
SBUS and PCI controllers anyways, so this was easy to cure.
2) The IMAP register has a different layout and some bits that we
need to preserve, so use a read/modify/write when making
changes to the IMAP register in generic code.
3) Flushing the entire IOMMU TLB is best done with a single write
to a register on this PCI controller, add a iommu->iommu_flushinv
for this.
Still lacks MSI support, that will come later.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64')
| -rw-r--r-- | include/asm-sparc64/iommu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-sparc64/iommu.h b/include/asm-sparc64/iommu.h index e199594a1e9b..0b1813f41045 100644 --- a/include/asm-sparc64/iommu.h +++ b/include/asm-sparc64/iommu.h @@ -32,6 +32,7 @@ struct iommu { unsigned long iommu_control; unsigned long iommu_tsbbase; unsigned long iommu_flush; + unsigned long iommu_flushinv; unsigned long iommu_ctxflush; unsigned long write_complete_reg; unsigned long dummy_page; |