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Altera_Forum's avatar
Altera_Forum
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17 years ago

Linux with MMU on NEEK

Hi, all. I'm testing Linux MMU version, on my NEEK. http://www.nioswiki.com/linux It works fine and I can use "bash" shell. This is the evident proof that we are using the true 'fo...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Actually, I have it working with 32KB caches now, I'm not sure what changed (been through a few FPGA updates since I last tried it). I think at least some support for the aliasing problem is there actually - see cache_flush.c, syscall.c, Documentation/cachetlb.txt.

I did make this change, but haven't noticed any difference with or without it, but it seems more correct for the COLOUR_ALIGN macro in syscall.c and by the documentation in cachetlb.txt: 

--- a/arch/nios2/include/asm/shmparam.h
+++ b/arch/nios2/include/asm/shmparam.h
@@ -1 +1,2 @@
-#include <asm-generic/shmparam.h>
+#include <asm/nios.h>
+#define SHMLBA DCACHE_SIZE