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sparc32: add IOMMU chipset doc links

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Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2010-04-03 07:40:47 +00:00
parent 240566908f
commit 93c5a32f89
1 changed files with 9 additions and 1 deletions
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10
hw/sun4m_iommu.c
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@ -1,5 +1,5 @@
/*
* QEMU SPARC iommu emulation
* QEMU Sun4m iommu emulation
*
* Copyright (c) 2003-2005 Fabrice Bellard
*
@ -35,6 +35,14 @@
#define DPRINTF(fmt, ...)
#endif
/*
* I/O MMU used by Sun4m systems
*
* Chipset docs:
* "Sun-4M System Architecture (revision 2.0) by Chuck Narad", 950-1373-01,
* http://mediacast.sun.com/users/Barton808/media/Sun4M_SystemArchitecture_edited2.pdf
*/
#define IOMMU_NREGS (4*4096/4)
#define IOMMU_CTRL (0x0000 >> 2)
#define IOMMU_CTRL_IMPL 0xf0000000 /* Implementation */