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/**************************************************************************
*
* 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 );
}
}
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