From: Michal Simek <monstr@monstr.eu>
Date: Tue, 26 May 2009 14:30:29 +0000 (+0200)
Subject: microblaze_mmu_v2: Update dma.h for MMU
X-Git-Tag: firefly_0821_release~13950^2~7
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=dcffc1b29115cc26686b8ae62b587e63f0e139f0;p=firefly-linux-kernel-4.4.55.git

microblaze_mmu_v2: Update dma.h for MMU

Signed-off-by: Michal Simek <monstr@monstr.eu>
---

diff --git a/arch/microblaze/include/asm/dma.h b/arch/microblaze/include/asm/dma.h
index 0967fa04fc5e..08c073badf19 100644
--- a/arch/microblaze/include/asm/dma.h
+++ b/arch/microblaze/include/asm/dma.h
@@ -9,8 +9,13 @@
 #ifndef _ASM_MICROBLAZE_DMA_H
 #define _ASM_MICROBLAZE_DMA_H
 
+#ifndef CONFIG_MMU
 /* we don't have dma address limit. define it as zero to be
  * unlimited. */
 #define MAX_DMA_ADDRESS		(0)
+#else
+/* Virtual address corresponding to last available physical memory address.  */
+#define MAX_DMA_ADDRESS (CONFIG_KERNEL_START + memory_size - 1)
+#endif
 
 #endif /* _ASM_MICROBLAZE_DMA_H */