cell: checkpoint: support for function calls in SPU shaders

Will be used for instructions like SIN/COS/POW/TEX/etc.  The PPU needs to
know the address of some functions in the SPU address space.  Send that
info to the PPU/main memory rather than patch up shaders on the SPU side.
Not finished/tested yet...

1 files changed, 17 insertions, 1 deletions

diff --git a/src/gallium/drivers/cell/common.h b/src/gallium/drivers/cell/common.h
index f0ff96eb478..99329fd8e22 100644
--- a/src/gallium/drivers/cell/common.h
+++ b/src/gallium/drivers/cell/common.h
@@ -130,7 +130,7 @@ struct cell_command_fragment_ops
 #define SPU_MAX_FRAGMENT_PROGRAM_INSTS 128
 
 /**
- * Command to send a fragment progra to SPUs.
+ * Command to send a fragment program to SPUs.
  */
 struct cell_command_fragment_program
 {
@@ -267,6 +267,20 @@ struct cell_command
 } ALIGN16_ATTRIB;
 
 
+#define MAX_SPU_FUNCTIONS 12
+/**
+ * Used to tell the PPU about the address of particular functions in the
+ * SPU's address space.
+ */
+struct cell_spu_function_info
+{
+   uint num;
+   char names[MAX_SPU_FUNCTIONS][16];
+   uint addrs[MAX_SPU_FUNCTIONS];
+   char pad[12];   /**< Pad struct to multiple of 16 bytes (256 currently) */
+};
+
+
 /** This is the object passed to spe_create_thread() */
 struct cell_init_info
 {
@@ -278,6 +292,8 @@ struct cell_init_info
    /** Buffers for command batches, vertex/index data */
    ubyte *buffers[CELL_NUM_BUFFERS];
    uint *buffer_status;  /**< points at cell_context->buffer_status */
+
+   struct cell_spu_function_info *spu_functions;
 } ALIGN16_ATTRIB;