Cell driver state-setter functions, basic tile get/put, glClear.

The state setting code was mostly just copied from the softpipe driver.
The SPUs can now get/put framebuffer tiles from/to main memory and clear
them to a given color.  Lots of debug code in effect.
Tiled framebuffer is displayed in X window via the xmwinsys layer.
To enable Cell driver, export GALLIUM_CELL=1

1 files changed, 223 insertions, 0 deletions

diff --git a/src/mesa/pipe/cell/ppu/cell_spu.c b/src/mesa/pipe/cell/ppu/cell_spu.c
new file mode 100644
index 0000000000..ed56250ff1
--- /dev/null
+++ b/src/mesa/pipe/cell/ppu/cell_spu.c
@@ -0,0 +1,223 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+
+#include <cbe_mfc.h>
+
+#include "cell_spu.h"
+#include "pipe/p_format.h"
+#include "pipe/p_state.h"
+#include "pipe/cell/common.h"
+
+
+/*
+helpful headers:
+/opt/ibm/cell-sdk/prototype/src/include/ppu/cbe_mfc.h
+*/
+
+
+/**
+ * SPU/SPE handles, etc
+ */
+speid_t speid[MAX_SPUS];
+spe_spu_control_area_t *control_ps_area[MAX_SPUS];
+
+
+/**
+ * Data sent to SPUs
+ */
+struct cell_init_info inits[MAX_SPUS] ALIGN16;
+struct cell_command command[MAX_SPUS] ALIGN16;
+
+
+/**
+ * Write a 1-word message to the given SPE mailbox.
+ */
+void
+send_mbox_message(spe_spu_control_area_t *ca, unsigned int msg)
+{
+   while (_spe_in_mbox_status(ca) < 1)
+      ;
+   _spe_in_mbox_write(ca, msg);
+}
+
+
+/**
+ * Wait for a 1-word message to arrive in given mailbox.
+ */
+uint
+wait_mbox_message(spe_spu_control_area_t *ca)
+{
+   uint k;
+   while (_spe_out_mbox_status(ca) < 1)
+      ;
+   k = _spe_out_mbox_read(ca);
+   return k;
+}
+
+
+/**
+ * Create the SPU threads
+ */
+void
+cell_start_spus(uint num_spus)
+{
+   uint i;
+
+   assert((sizeof(struct cell_command) & 0xf) == 0);
+   ASSERT_ALIGN16(&command[0]);
+   ASSERT_ALIGN16(&command[1]);
+
+   assert((sizeof(struct cell_init_info) & 0xf) == 0);
+   ASSERT_ALIGN16(&inits[0]);
+   ASSERT_ALIGN16(&inits[1]);
+
+   /* XXX do we need to create a gid with spe_create_group()? */
+
+   for (i = 0; i < num_spus; i++) {
+      inits[i].id = i;
+      inits[i].num_spus = num_spus;
+      inits[i].cmd = &command[i];
+
+      speid[i] = spe_create_thread(0,          /* gid */
+                                   &g3d_spu,   /* spe program handle */
+                                   &inits[i],  /* argp */
+                                   NULL,       /* envp */
+                                   -1,         /* mask */
+                                   SPE_MAP_PS/*0*/ );        /* flags */
+
+      control_ps_area[i] = spe_get_ps_area(speid[i], SPE_CONTROL_AREA);
+      assert(control_ps_area[i]);
+   }
+}
+
+
+/** wait for all SPUs to finish working */
+/** XXX temporary */
+void
+finish_all(uint num_spus)
+{
+   uint i;
+
+   for (i = 0; i < num_spus; i++) {
+      send_mbox_message(control_ps_area[i], CELL_CMD_FINISH);
+   }
+   for (i = 0; i < num_spus; i++) {
+      /* wait for mbox message */
+      unsigned k;
+      while (_spe_out_mbox_status(control_ps_area[i]) < 1)
+         ;
+      k = _spe_out_mbox_read(control_ps_area[i]);
+      assert(k == CELL_CMD_FINISH);
+   }
+}
+
+
+/**
+ ** Send test commands (XXX temporary)
+ **/
+void
+test_spus(struct cell_context *cell)
+{
+   uint i;
+   struct pipe_surface *surf = cell->framebuffer.cbufs[0];
+
+   printf("PPU: sleep(2)\n\n\n");
+   sleep(2);
+
+   for (i = 0; i < cell->num_spus; i++) {
+      command[i].fb.start = surf->map;
+      command[i].fb.width = surf->width;
+      command[i].fb.height = surf->height;
+      command[i].fb.format = PIPE_FORMAT_A8R8G8B8_UNORM;
+      send_mbox_message(control_ps_area[i], CELL_CMD_FRAMEBUFFER);
+   }
+
+   for (i = 0; i < cell->num_spus; i++) {
+      command[i].clear.value = 0xff880044; /* XXX */
+      send_mbox_message(control_ps_area[i], CELL_CMD_CLEAR_TILES);
+   }
+
+   finish_all(cell->num_spus);
+
+   {
+      uint *b = (uint*) surf->map;
+      printf("PPU: Clear results: 0x%x 0x%x 0x%x 0x%x\n",
+             b[0], b[1000], b[2000], b[3000]);
+   }
+
+   for (i = 0; i < cell->num_spus; i++) {
+      send_mbox_message(control_ps_area[i], CELL_CMD_INVERT_TILES);
+   }
+
+   finish_all(cell->num_spus);
+
+   {
+      uint *b = (uint*) surf->map;
+      printf("PPU: Inverted results: 0x%x 0x%x 0x%x 0x%x\n",
+             b[0], b[1000], b[2000], b[3000]);
+   }
+
+
+
+   for (i = 0; i < cell->num_spus; i++) {
+      send_mbox_message(control_ps_area[i], CELL_CMD_EXIT);
+   }
+}
+
+
+/**
+ * Wait for all SPUs to exit/return.
+ */
+void
+wait_spus(uint num_spus)
+{
+   int i, status;
+
+   for (i = 0; i < num_spus; i++) {
+      spe_wait( speid[i], &status, 1 );
+   }
+}
+
+
+/**
+ * Tell all the SPUs to stop/exit.
+ */
+void
+cell_spu_exit(struct cell_context *cell)
+{
+   uint i;
+   int status;
+
+   for (i = 0; i < cell->num_spus; i++) {
+      send_mbox_message(control_ps_area[i], CELL_CMD_EXIT);
+   }
+
+   for (i = 0; i < cell->num_spus; i++) {
+      spe_wait( speid[i], &status, 1 );
+   }
+}