[SPARC64]: Sun4v cross-call sending support.

Technically the hypervisor call supports sending in a list
of all cpus to get the cross-call, but I only pass in one
cpu at a time for now.

The multi-cpu support is there, just ifdef'd out so it's easy to
enable or delete it later.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 12 insertions, 2 deletions

diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h
index 7f0a74ec47f6..338b0ca5b519 100644
--- a/include/asm-sparc64/cpudata.h
+++ b/include/asm-sparc64/cpudata.h
@@ -65,8 +65,16 @@ struct trap_per_cpu {
         unsigned long           nonresum_mondo_pa;
         unsigned long           nonresum_kernel_buf_pa;
 
-/* Dcache lines 3 and 4: Hypervisor Fault Status */
+/* Dcache lines 3, 4, 5, and 6: Hypervisor Fault Status */
         struct hv_fault_status  fault_info;
+
+/* Dcache line 7: Physical addresses of CPU send mondo block and CPU list.  */
+        unsigned long           cpu_mondo_block_pa;
+        unsigned long           cpu_list_pa;
+        unsigned long           __pad1[2];
+
+/* Dcache line 8: Unused, needed to keep trap_block a power-of-2 in size.  */
+        unsigned long           __pad2[4];
 } __attribute__((aligned(64)));
 extern struct trap_per_cpu trap_block[NR_CPUS];
 extern void init_cur_cpu_trap(void);
@@ -108,8 +116,10 @@ extern struct sun4v_2insn_patch_entry __sun4v_2insn_patch,
 #define TRAP_PER_CPU_NONRESUM_MONDO_PA  0x30
 #define TRAP_PER_CPU_NONRESUM_KBUF_PA   0x38
 #define TRAP_PER_CPU_FAULT_INFO         0x40
+#define TRAP_PER_CPU_CPU_MONDO_BLOCK_PA 0xc0
+#define TRAP_PER_CPU_CPU_LIST_PA        0xc8
 
-#define TRAP_BLOCK_SZ_SHIFT             7
+#define TRAP_BLOCK_SZ_SHIFT             8
 
 #include <asm/scratchpad.h>