A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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[SPARC64]: SUN4U PCI-E controller support.

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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 <[email protected]>
This commit is contained in:
David S. Miller 2007-05-02 17:31:36 -07:00
commit 861fe90656
7 changed files with 535 additions and 22 deletions
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1
include/asm-sparc64/iommu.h
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@ -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;