On Wed, Jun 06, 2007 at 08:38:18AM +0200, Franck Bui-Huu wrote: > >diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c > >index 4975da0..62ef100 100644 > >--- a/arch/mips/kernel/setup.c > >+++ b/arch/mips/kernel/setup.c > >@@ -509,6 +509,14 @@ static void __init resource_init(void) > > res->end = end; > > > > res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; > >+#if defined(CONFIG_LEMOTE_FULONG) && defined(CONFIG_64BIT) > >+ /* to keep memory continous, we tell system 0x10000000 - > >0x20000000 is reserved > >+ * for memory, in fact it is io region, don't occupy it > >+ * > >+ * SPARSEMEM? > > Definetly yes ! It has been designed for such issue and it should save > you some memory. A hole of 256MB size in the memory address map will cost 3.5MB with a 64-bit kernel. The other reason why I don't like this patch is that it drags platform specific code into the generic MIPS code. Ralf
