[SPARC64]: Initial sun4v TLB miss handling infrastructure.
Things are a little tricky because, unlike sun4u, we have
to:
1) do a hypervisor trap to do the TLB load.
2) do the TSB lookup calculations by hand
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h
index 998145b..a3dc4af 100644
--- a/include/asm-sparc64/cpudata.h
+++ b/include/asm-sparc64/cpudata.h
@@ -6,6 +6,8 @@
#ifndef _SPARC64_CPUDATA_H
#define _SPARC64_CPUDATA_H
+#include <asm/hypervisor.h>
+
#ifndef __ASSEMBLY__
#include <linux/percpu.h>
@@ -57,6 +59,9 @@
/* D-cache line 2 */
unsigned long __pad2[4];
+
+/* Dcache lines 3 and 4 */
+ struct hv_fault_status fault_info;
} __attribute__((aligned(64)));
extern struct trap_per_cpu trap_block[NR_CPUS];
extern void init_cur_cpu_trap(void);
@@ -88,8 +93,9 @@
#define TRAP_PER_CPU_THREAD 0x00
#define TRAP_PER_CPU_PGD_PADDR 0x08
+#define TRAP_PER_CPU_FAULT_INFO 0x20
-#define TRAP_BLOCK_SZ_SHIFT 6
+#define TRAP_BLOCK_SZ_SHIFT 7
#include <asm/scratchpad.h>
