cell: implement CELL_DEBUG env/options var

Options so far:
  "checker"  module tile clear color by SPU ID to see where the tiles are
  "sync"  to do synchronous DMA (only partially implemented)

3 files changed, 16 insertions, 0 deletions

diff --git a/src/gallium/drivers/cell/ppu/cell_context.c b/src/gallium/drivers/cell/ppu/cell_context.c
index 9ff4e86943..c8828e644c 100644
--- a/src/gallium/drivers/cell/ppu/cell_context.c
+++ b/src/gallium/drivers/cell/ppu/cell_context.c
@@ -85,6 +85,15 @@ cell_draw_create(struct cell_context *cell)
 }
 
 
+#ifdef DEBUG
+static const struct debug_named_value cell_debug_flags[] = {
+   {"checker", CELL_DEBUG_CHECKER},/**< modulate tile clear color by SPU ID */
+   {"sync", CELL_DEBUG_SYNC},      /**< SPUs do synchronous DMA */
+   {NULL, 0}
+};
+#endif
+
+
 struct pipe_context *
 cell_create_context(struct pipe_screen *screen,
                     struct cell_winsys *cws)
@@ -136,6 +145,10 @@ cell_create_context(struct pipe_screen *screen,
    draw_wide_point_threshold(cell->draw, 0.0);
    draw_wide_line_threshold(cell->draw, 0.0);
 
+   cell->debug_flags = debug_get_flags_option("CELL_DEBUG", 
+                                              cell_debug_flags, 
+                                              0 );
+
    /*
     * SPU stuff
     */
diff --git a/src/gallium/drivers/cell/ppu/cell_context.h b/src/gallium/drivers/cell/ppu/cell_context.h
index 9ca153d52f..8cec9f45b2 100644
--- a/src/gallium/drivers/cell/ppu/cell_context.h
+++ b/src/gallium/drivers/cell/ppu/cell_context.h
@@ -163,6 +163,8 @@ struct cell_context
 
    struct spe_function attrib_fetch;
    unsigned attrib_fetch_offsets[PIPE_MAX_ATTRIBS];
+
+   unsigned debug_flags;
 };
 
 
diff --git a/src/gallium/drivers/cell/ppu/cell_spu.c b/src/gallium/drivers/cell/ppu/cell_spu.c
index 5e75f409a3..2df90fdcb7 100644
--- a/src/gallium/drivers/cell/ppu/cell_spu.c
+++ b/src/gallium/drivers/cell/ppu/cell_spu.c
@@ -131,6 +131,7 @@ cell_start_spus(struct cell_context *cell)
    for (i = 0; i < cell->num_spus; i++) {
       cell_global.inits[i].id = i;
       cell_global.inits[i].num_spus = cell->num_spus;
+      cell_global.inits[i].debug_flags = cell->debug_flags;
       cell_global.inits[i].cmd = &cell_global.command[i];
       for (j = 0; j < CELL_NUM_BUFFERS; j++) {
          cell_global.inits[i].buffers[j] = cell->buffer[j];