tile PCI RC: add comment about "PCI hole" problem
authorChris Metcalf <cmetcalf@tilera.com>
Mon, 12 Aug 2013 19:25:22 +0000 (15:25 -0400)
committerChris Metcalf <cmetcalf@tilera.com>
Tue, 3 Sep 2013 18:52:20 +0000 (14:52 -0400)
commit5e7705df28720c424c11bdedf0d568177351c55a
tree28c341353900c87e7ddcd097bb8e599070b3bbf7
parentbdb8205455a31362fc72075583aedd63ff0c944b
tile PCI RC: add comment about "PCI hole" problem

Explain the rationale of not overlapping the 64-bit DMA window
with the PA range.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
arch/tile/include/asm/pci.h