diff options
Diffstat (limited to 'src/gallium/drivers/cell/spu')
| -rw-r--r-- | src/gallium/drivers/cell/spu/spu_command.c | 111 | ||||
| -rw-r--r-- | src/gallium/drivers/cell/spu/spu_command.h | 32 | ||||
| -rw-r--r-- | src/gallium/drivers/cell/spu/spu_main.c | 15 | ||||
| -rw-r--r-- | src/gallium/drivers/cell/spu/spu_main.h | 4 |
4 files changed, 120 insertions, 42 deletions
diff --git a/src/gallium/drivers/cell/spu/spu_command.c b/src/gallium/drivers/cell/spu/spu_command.c index d5faf4e3aa..8500d19754 100644 --- a/src/gallium/drivers/cell/spu/spu_command.c +++ b/src/gallium/drivers/cell/spu/spu_command.c @@ -210,45 +210,72 @@ cmd_release_verts(const struct cell_command_release_verts *release) static void cmd_state_fragment_ops(const struct cell_command_fragment_ops *fops) { - static int warned = 0; - D_PRINTF(CELL_DEBUG_CMD, "CMD_STATE_FRAGMENT_OPS\n"); - /* Copy SPU code from batch buffer to spu buffer */ - memcpy(spu.fragment_ops_code_front, fops->code_front, SPU_MAX_FRAGMENT_OPS_INSTS * 4); - memcpy(spu.fragment_ops_code_back, fops->code_back, SPU_MAX_FRAGMENT_OPS_INSTS * 4); - /* Copy state info (for fallback case only) */ + + /* Copy state info (for fallback case only - this will eventually + * go away when the fallback case goes away) + */ memcpy(&spu.depth_stencil_alpha, &fops->dsa, sizeof(fops->dsa)); memcpy(&spu.blend, &fops->blend, sizeof(fops->blend)); memcpy(&spu.blend_color, &fops->blend_color, sizeof(fops->blend_color)); - /* Parity twist! For now, always use the fallback code by default, - * only switching to codegen when specifically requested. This - * allows us to develop freely without risking taking down the - * branch. - * - * Later, the parity of this check will be reversed, so that - * codegen is *always* used, unless we specifically indicate that - * we don't want it. - * - * Eventually, the option will be removed completely, because in - * final code we'll always use codegen and won't even provide the - * raw state records that the fallback code requires. + /* Make sure the SPU knows which buffers it's expected to read when + * it's told to pull tiles. */ - if ((spu.init.debug_flags & CELL_DEBUG_FRAGMENT_OP_FALLBACK) == 0) { - spu.fragment_ops[CELL_FACING_FRONT] = (spu_fragment_ops_func) spu.fragment_ops_code_front; - spu.fragment_ops[CELL_FACING_BACK] = (spu_fragment_ops_func) spu.fragment_ops_code_back; - } - else { - /* otherwise, the default fallback code remains in place */ + spu.read_depth_stencil = (spu.depth_stencil_alpha.depth.enabled || spu.depth_stencil_alpha.stencil[0].enabled); + + /* If we're forcing the fallback code to be used (for debug purposes), + * install that. Otherwise install the incoming SPU code. + */ + if ((spu.init.debug_flags & CELL_DEBUG_FRAGMENT_OP_FALLBACK) != 0) { + static unsigned int warned = 0; if (!warned) { fprintf(stderr, "Cell Warning: using fallback per-fragment code\n"); warned = 1; } + /* The following two lines aren't really necessary if you + * know the debug flags won't change during a run, and if you + * know that the function pointers are initialized correctly. + * We set them here to allow a person to change the debug + * flags during a run (from inside a debugger). + */ + spu.fragment_ops[CELL_FACING_FRONT] = spu_fallback_fragment_ops; + spu.fragment_ops[CELL_FACING_BACK] = spu_fallback_fragment_ops; + return; } - spu.read_depth_stencil = (spu.depth_stencil_alpha.depth.enabled || spu.depth_stencil_alpha.stencil[0].enabled); -} + /* Make sure the SPU code buffer is large enough to hold the incoming code. + * Note that we *don't* use align_malloc() and align_free(), because + * those utility functions are *not* available in SPU code. + * */ + if (spu.fragment_ops_code_size < fops->total_code_size) { + if (spu.fragment_ops_code != NULL) { + free(spu.fragment_ops_code); + } + spu.fragment_ops_code_size = fops->total_code_size; + spu.fragment_ops_code = malloc(fops->total_code_size); + if (spu.fragment_ops_code == NULL) { + /* Whoops. */ + fprintf(stderr, "CELL Warning: failed to allocate fragment ops code (%d bytes) - using fallback\n", fops->total_code_size); + spu.fragment_ops_code = NULL; + spu.fragment_ops_code_size = 0; + spu.fragment_ops[CELL_FACING_FRONT] = spu_fallback_fragment_ops; + spu.fragment_ops[CELL_FACING_BACK] = spu_fallback_fragment_ops; + return; + } + } + /* Copy the SPU code from the command buffer to the spu buffer */ + memcpy(spu.fragment_ops_code, fops->code, fops->total_code_size); + + /* Set the pointers for the front-facing and back-facing fragments + * to the specified offsets within the code. Note that if the + * front-facing and back-facing code are the same, they'll have + * the same offset. + */ + spu.fragment_ops[CELL_FACING_FRONT] = (spu_fragment_ops_func) &spu.fragment_ops_code[fops->front_code_index]; + spu.fragment_ops[CELL_FACING_BACK] = (spu_fragment_ops_func) &spu.fragment_ops_code[fops->back_code_index]; +} static void cmd_state_fragment_program(const struct cell_command_fragment_program *fp) @@ -588,7 +615,8 @@ cmd_batch(uint opcode) struct cell_command_fragment_ops *fops = (struct cell_command_fragment_ops *) &buffer[pos]; cmd_state_fragment_ops(fops); - pos += sizeof(*fops) / 8; + /* This is a variant-sized command */ + pos += (sizeof(*fops) + fops->total_code_size)/ 8; } break; case CELL_CMD_STATE_FRAGMENT_PROGRAM: @@ -756,3 +784,32 @@ command_loop(void) if (spu.init.debug_flags & CELL_DEBUG_CACHE) spu_dcache_report(); } + +/* Initialize this module; we manage the fragment ops buffer here. */ +void +spu_command_init(void) +{ + /* Install default/fallback fragment processing function. + * This will normally be overriden by a code-gen'd function + * unless CELL_FORCE_FRAGMENT_OPS_FALLBACK is set. + */ + spu.fragment_ops[CELL_FACING_FRONT] = spu_fallback_fragment_ops; + spu.fragment_ops[CELL_FACING_BACK] = spu_fallback_fragment_ops; + + /* Set up the basic empty buffer for code-gen'ed fragment ops */ + spu.fragment_ops_code = NULL; + spu.fragment_ops_code_size = 0; +} + +void +spu_command_close(void) +{ + /* Deallocate the code-gen buffer for fragment ops, and reset the + * fragment ops functions to their initial setting (just to leave + * things in a good state). + */ + if (spu.fragment_ops_code != NULL) { + free(spu.fragment_ops_code); + } + spu_command_init(); +} diff --git a/src/gallium/drivers/cell/spu/spu_command.h b/src/gallium/drivers/cell/spu/spu_command.h index 853e9aa549..83dcdade28 100644 --- a/src/gallium/drivers/cell/spu/spu_command.h +++ b/src/gallium/drivers/cell/spu/spu_command.h @@ -1,7 +1,35 @@ - - +/************************************************************************** + * + * Copyright 2008 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. + * + **************************************************************************/ extern void command_loop(void); +extern void +spu_command_init(void); +extern void +spu_command_close(void); diff --git a/src/gallium/drivers/cell/spu/spu_main.c b/src/gallium/drivers/cell/spu/spu_main.c index 7033f6037d..97c86d194d 100644 --- a/src/gallium/drivers/cell/spu/spu_main.c +++ b/src/gallium/drivers/cell/spu/spu_main.c @@ -58,17 +58,8 @@ one_time_init(void) memset(spu.ctile_status, TILE_STATUS_DEFINED, sizeof(spu.ctile_status)); memset(spu.ztile_status, TILE_STATUS_DEFINED, sizeof(spu.ztile_status)); invalidate_tex_cache(); - - /* Install default/fallback fragment processing function. - * This will normally be overriden by a code-gen'd function - * unless CELL_FORCE_FRAGMENT_OPS_FALLBACK is set. - */ - spu.fragment_ops[CELL_FACING_FRONT] = spu_fallback_fragment_ops; - spu.fragment_ops[CELL_FACING_BACK] = spu_fallback_fragment_ops; } - - /* In some versions of the SDK the SPE main takes 'unsigned long' as a * parameter. In others it takes 'unsigned long long'. Use a define to * select between the two. @@ -91,11 +82,11 @@ main(main_param_t speid, main_param_t argp) ASSERT(sizeof(tile_t) == TILE_SIZE * TILE_SIZE * 4); ASSERT(sizeof(struct cell_command_render) % 8 == 0); - ASSERT(((unsigned long) &spu.fragment_ops_code_front) % 8 == 0); - ASSERT(((unsigned long) &spu.fragment_ops_code_back) % 8 == 0); + ASSERT(sizeof(struct cell_command_fragment_ops) % 8 == 0); ASSERT(((unsigned long) &spu.fragment_program_code) % 8 == 0); one_time_init(); + spu_command_init(); D_PRINTF(CELL_DEBUG_CMD, "main() speid=%lu\n", (unsigned long) speid); D_PRINTF(CELL_DEBUG_FRAGMENT_OP_FALLBACK, "using fragment op fallback\n"); @@ -120,5 +111,7 @@ main(main_param_t speid, main_param_t argp) command_loop(); + spu_command_close(); + return 0; } diff --git a/src/gallium/drivers/cell/spu/spu_main.h b/src/gallium/drivers/cell/spu/spu_main.h index 24cf7d77ce..33767e7c51 100644 --- a/src/gallium/drivers/cell/spu/spu_main.h +++ b/src/gallium/drivers/cell/spu/spu_main.h @@ -169,8 +169,8 @@ struct spu_global ubyte ztile_status[CELL_MAX_HEIGHT/TILE_SIZE][CELL_MAX_WIDTH/TILE_SIZE] ALIGN16_ATTRIB; /** Current fragment ops machine code, at 8-byte boundary */ - uint fragment_ops_code_front[SPU_MAX_FRAGMENT_OPS_INSTS] ALIGN8_ATTRIB; - uint fragment_ops_code_back[SPU_MAX_FRAGMENT_OPS_INSTS] ALIGN8_ATTRIB; + uint *fragment_ops_code; + uint fragment_ops_code_size; /** Current fragment ops functions, 0 = frontfacing, 1 = backfacing */ spu_fragment_ops_func fragment_ops[2]; |