diff options
Diffstat (limited to 'src/gallium/drivers/cell/ppu/cell_spu.c')
| -rw-r--r-- | src/gallium/drivers/cell/ppu/cell_spu.c | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/src/gallium/drivers/cell/ppu/cell_spu.c b/src/gallium/drivers/cell/ppu/cell_spu.c deleted file mode 100644 index 39284f3a5d1..00000000000 --- a/src/gallium/drivers/cell/ppu/cell_spu.c +++ /dev/null @@ -1,219 +0,0 @@ -/************************************************************************** - * - * 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. - * - **************************************************************************/ - - -/** - * Utility/wrappers for communicating with the SPUs. - */ - - -#include <pthread.h> - -#include "cell_spu.h" -#include "pipe/p_format.h" -#include "pipe/p_state.h" -#include "util/u_memory.h" -#include "cell/common.h" - - -/* -helpful headers: -/opt/ibm/cell-sdk/prototype/src/include/ppu/cbe_mfc.h -*/ - - -/** - * Cell/SPU info that's not per-context. - */ -struct cell_global_info cell_global; - - -/** - * Scan /proc/cpuinfo to determine the timebase for the system. - * This is used by the SPUs to convert 'decrementer' ticks to seconds. - * There may be a better way to get this value... - */ -static unsigned -get_timebase(void) -{ - FILE *f = fopen("/proc/cpuinfo", "r"); - unsigned timebase; - - assert(f); - while (!feof(f)) { - char line[80]; - fgets(line, sizeof(line), f); - if (strncmp(line, "timebase", 8) == 0) { - char *colon = strchr(line, ':'); - if (colon) { - timebase = atoi(colon + 2); - break; - } - } - } - fclose(f); - - return timebase; -} - - -/** - * Write a 1-word message to the given SPE mailbox. - */ -void -send_mbox_message(spe_context_ptr_t ctx, unsigned int msg) -{ - spe_in_mbox_write(ctx, &msg, 1, SPE_MBOX_ALL_BLOCKING); -} - - -/** - * Wait for a 1-word message to arrive in given mailbox. - */ -uint -wait_mbox_message(spe_context_ptr_t ctx) -{ - do { - unsigned data; - int count = spe_out_mbox_read(ctx, &data, 1); - - if (count == 1) { - return data; - } - - if (count < 0) { - /* error */ ; - } - } while (1); -} - - -/** - * Called by pthread_create() to spawn an SPU thread. - */ -static void * -cell_thread_function(void *arg) -{ - struct cell_init_info *init = (struct cell_init_info *) arg; - unsigned entry = SPE_DEFAULT_ENTRY; - - ASSERT_ALIGN16(init); - - if (spe_context_run(cell_global.spe_contexts[init->id], &entry, 0, - init, NULL, NULL) < 0) { - fprintf(stderr, "spe_context_run() failed\n"); - exit(1); - } - - pthread_exit(NULL); -} - - -/** - * Create the SPU threads. This is done once during driver initialization. - * This involves setting the "init" message which is sent to each SPU. - * The init message specifies an SPU id, total number of SPUs, location - * and number of batch buffers, etc. - */ -void -cell_start_spus(struct cell_context *cell) -{ - static boolean one_time_init = FALSE; - uint i, j; - uint timebase = get_timebase(); - - if (one_time_init) { - fprintf(stderr, "PPU: Multiple rendering contexts not yet supported " - "on Cell.\n"); - abort(); - } - - one_time_init = TRUE; - - assert(cell->num_spus <= CELL_MAX_SPUS); - - ASSERT_ALIGN16(&cell_global.inits[0]); - ASSERT_ALIGN16(&cell_global.inits[1]); - - /* - * Initialize the global 'inits' structure for each SPU. - * A pointer to the init struct will be passed to each SPU. - * The SPUs will then each grab their init info with mfc_get(). - */ - 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].inv_timebase = 1000.0f / timebase; - - for (j = 0; j < CELL_NUM_BUFFERS; j++) { - cell_global.inits[i].buffers[j] = cell->buffer[j]; - } - cell_global.inits[i].buffer_status = &cell->buffer_status[0][0][0]; - - cell_global.inits[i].spu_functions = &cell->spu_functions; - - cell_global.spe_contexts[i] = spe_context_create(0, NULL); - if (!cell_global.spe_contexts[i]) { - fprintf(stderr, "spe_context_create() failed\n"); - exit(1); - } - - if (spe_program_load(cell_global.spe_contexts[i], &g3d_spu)) { - fprintf(stderr, "spe_program_load() failed\n"); - exit(1); - } - - pthread_create(&cell_global.spe_threads[i], /* returned thread handle */ - NULL, /* pthread attribs */ - &cell_thread_function, /* start routine */ - &cell_global.inits[i]); /* thread argument */ - } -} - - -/** - * Tell all the SPUs to stop/exit. - * This is done when the driver's exiting / cleaning up. - */ -void -cell_spu_exit(struct cell_context *cell) -{ - uint i; - - for (i = 0; i < cell->num_spus; i++) { - send_mbox_message(cell_global.spe_contexts[i], CELL_CMD_EXIT); - } - - /* wait for threads to exit */ - for (i = 0; i < cell->num_spus; i++) { - void *value; - pthread_join(cell_global.spe_threads[i], &value); - cell_global.spe_threads[i] = 0; - cell_global.spe_contexts[i] = 0; - } -} |