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Subject[Patch 10/29] GRU - Support 64-bit GRU addresses
From: Jack Steiner <steiner@sgi.com>

Increase the maximum address supported by the SGI GRU
driver to a full 64 bits. Note that GRU addresses are not
always the same as socket virtual addresses. Sockets may not
necessarily support the full 64 bits.

Signed-off-by: Jack Steiner <steiner@sgi.com>

---
drivers/misc/sgi-gru/grutables.h | 6 ------
1 file changed, 6 deletions(-)
Index: linux/drivers/misc/sgi-gru/grutables.h
===================================================================
--- linux.orig/drivers/misc/sgi-gru/grutables.h 2009-11-20 09:32:29.000000000 -0600
+++ linux/drivers/misc/sgi-gru/grutables.h 2009-11-20 09:32:31.000000000 -0600
@@ -293,13 +293,7 @@ extern struct mcs_op_statistic mcs_op_st
#define ASID_INC 8 /* number of regions */

/* Generate a GRU asid value from a GRU base asid & a virtual address. */
-#if defined CONFIG_IA64
#define VADDR_HI_BIT 64
-#elif defined CONFIG_X86_64
-#define VADDR_HI_BIT 48
-#else
-#error "Unsupported architecture"
-#endif
#define GRUREGION(addr) ((addr) >> (VADDR_HI_BIT - 3) & 3)
#define GRUASID(asid, addr) ((asid) + GRUREGION(addr))



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