Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 43 insertions, 0 deletions

diff --git a/Documentation/sound/oss/VIA-chipset b/Documentation/sound/oss/VIA-chipset
new file mode 100644
index 000000000000..37865234e54d
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+Running sound cards on VIA chipsets
+
+o       There are problems with VIA chipsets and sound cards that appear to
+        lock the hardware solidly. Test programs under DOS have verified the
+        problem exists on at least some (but apparently not all) VIA boards
+
+o       VIA have so far failed to bother to answer support mail on the subject
+        so if you are a VIA engineer feeling aggrieved as you read this 
+        document go chase your own people. If there is a workaround please
+        let us know so we can implement it.
+
+
+Certain patterns of ISA DMA access used for most PC sound cards cause the
+VIA chipsets to lock up. From the collected reports this appears to cover a
+wide range of boards. Some also lock up with sound cards under Win* as well.
+
+Linux implements a workaround providing your chipset is PCI and you compiled
+with PCI Quirks enabled. If so you will see a message
+        "Activating ISA DMA bug workarounds"
+
+during booting. If you have a VIA PCI chipset that hangs when you use the
+sound and is not generating this message even with PCI quirks enabled
+please report the information to the linux-kernel list (see REPORTING-BUGS).
+
+If you are one of the tiny number of unfortunates with a 486 ISA/VLB VIA
+chipset board you need to do the following to build a special kernel for
+your board
+
+        edit linux/include/asm-i386/dma.h
+
+change
+
+#define isa_dma_bridge_buggy    (0)
+
+to
+
+#define isa_dma_bridge_buggy    (1)
+
+and rebuild a kernel without PCI quirk support.
+
+
+Other than this particular glitch the VIA [M]VP* chipsets appear to work
+perfectly with Linux.