X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-mips%2Fdma.h;h=1353c81065d1808d252d97b339fe34a052cca480;hb=13c48c490208d9e70d8d66d56f96c5054db69af7;hp=833437d31ef1634c1286d957b8cca8971bc158f2;hpb=8269cc4e2b0ddcdcb9e7f2034c464ef8613737a1;p=linux-2.6

diff --git a/include/asm-mips/dma.h b/include/asm-mips/dma.h
index 833437d31e..1353c81065 100644
--- a/include/asm-mips/dma.h
+++ b/include/asm-mips/dma.h
@@ -84,14 +84,14 @@
  * Deskstations or Acer PICA but not the much more versatile DMA logic used
  * for the local devices on Acer PICA or Magnums.
  */
-#ifdef CONFIG_SGI_IP22
-/* Horrible hack to have a correct DMA window on IP22 */
-#include <asm/sgi/mc.h>
-#define MAX_DMA_ADDRESS		(PAGE_OFFSET + SGIMC_SEG0_BADDR + 0x01000000)
+#if defined(CONFIG_SGI_IP22) || defined(CONFIG_SGI_IP28)
+/* don't care; ISA bus master won't work, ISA slave DMA supports 32bit addr */
+#define MAX_DMA_ADDRESS		PAGE_OFFSET
 #else
 #define MAX_DMA_ADDRESS		(PAGE_OFFSET + 0x01000000)
 #endif
 #define MAX_DMA_PFN		PFN_DOWN(virt_to_phys((void *)MAX_DMA_ADDRESS))
+#define MAX_DMA32_PFN		(1UL << (32 - PAGE_SHIFT))
 
 /* 8237 DMA controllers */
 #define IO_DMA1_BASE	0x00	/* 8 bit slave DMA, channels 0..3 */