From 93c5a32f89c19a97badd0aa79d2ac2e44376b40e Mon Sep 17 00:00:00 2001 From: Blue Swirl Date: Sat, 3 Apr 2010 07:40:47 +0000 Subject: sparc32: add IOMMU chipset doc links Signed-off-by: Blue Swirl --- hw/sun4m_iommu.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'hw/sun4m_iommu.c') diff --git a/hw/sun4m_iommu.c b/hw/sun4m_iommu.c index 0cd2ed0..1dbe077 100644 --- a/hw/sun4m_iommu.c +++ b/hw/sun4m_iommu.c @@ -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 */ -- cgit v1.1