diff options
Diffstat (limited to 'src/gallium/drivers/cell/spu/spu_main.c')
-rw-r--r-- | src/gallium/drivers/cell/spu/spu_main.c | 567 |
1 files changed, 567 insertions, 0 deletions
diff --git a/src/gallium/drivers/cell/spu/spu_main.c b/src/gallium/drivers/cell/spu/spu_main.c new file mode 100644 index 0000000..e375197 --- /dev/null +++ b/src/gallium/drivers/cell/spu/spu_main.c @@ -0,0 +1,567 @@ +/************************************************************************** + * + * 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. + * + **************************************************************************/ + + +/* main() for Cell SPU code */ + + +#include <stdio.h> +#include <libmisc.h> + +#include "spu_main.h" +#include "spu_render.h" +#include "spu_texture.h" +#include "spu_tile.h" +//#include "spu_test.h" +#include "spu_vertex_shader.h" +#include "pipe/cell/common.h" +#include "pipe/p_defines.h" + + +/* +helpful headers: +/usr/lib/gcc/spu/4.1.1/include/spu_mfcio.h +/opt/ibm/cell-sdk/prototype/sysroot/usr/include/libmisc.h +*/ + +boolean Debug = FALSE; + +struct spu_global spu; + +struct spu_vs_context draw; + +/** + * Tell the PPU that this SPU has finished copying a buffer to + * local store and that it may be reused by the PPU. + * This is done by writting a 16-byte batch-buffer-status block back into + * main memory (in cell_context->buffer_status[]). + */ +static void +release_buffer(uint buffer) +{ + /* Evidently, using less than a 16-byte status doesn't work reliably */ + static const uint status[4] ALIGN16_ATTRIB + = {CELL_BUFFER_STATUS_FREE, 0, 0, 0}; + + const uint index = 4 * (spu.init.id * CELL_NUM_BUFFERS + buffer); + uint *dst = spu.init.buffer_status + index; + + ASSERT(buffer < CELL_NUM_BUFFERS); + + mfc_put((void *) &status, /* src in local memory */ + (unsigned int) dst, /* dst in main memory */ + sizeof(status), /* size */ + TAG_MISC, /* tag is unimportant */ + 0, /* tid */ + 0 /* rid */); +} + + +/** + * For tiles whose status is TILE_STATUS_CLEAR, write solid-filled + * tiles back to the main framebuffer. + */ +static void +really_clear_tiles(uint surfaceIndex) +{ + const uint num_tiles = spu.fb.width_tiles * spu.fb.height_tiles; + uint i; + + if (surfaceIndex == 0) { + clear_c_tile(&spu.ctile); + + for (i = spu.init.id; i < num_tiles; i += spu.init.num_spus) { + uint tx = i % spu.fb.width_tiles; + uint ty = i / spu.fb.width_tiles; + if (spu.ctile_status[ty][tx] == TILE_STATUS_CLEAR) { + put_tile(tx, ty, &spu.ctile, TAG_SURFACE_CLEAR, 0); + } + } + } + else { + clear_z_tile(&spu.ztile); + + for (i = spu.init.id; i < num_tiles; i += spu.init.num_spus) { + uint tx = i % spu.fb.width_tiles; + uint ty = i / spu.fb.width_tiles; + if (spu.ztile_status[ty][tx] == TILE_STATUS_CLEAR) + put_tile(tx, ty, &spu.ctile, TAG_SURFACE_CLEAR, 1); + } + } + +#if 0 + wait_on_mask(1 << TAG_SURFACE_CLEAR); +#endif +} + + +static void +cmd_clear_surface(const struct cell_command_clear_surface *clear) +{ + const uint num_tiles = spu.fb.width_tiles * spu.fb.height_tiles; + uint i; + + if (Debug) + printf("SPU %u: CLEAR SURF %u to 0x%08x\n", spu.init.id, + clear->surface, clear->value); + +#define CLEAR_OPT 1 +#if CLEAR_OPT + /* set all tile's status to CLEAR */ + if (clear->surface == 0) { + memset(spu.ctile_status, TILE_STATUS_CLEAR, sizeof(spu.ctile_status)); + spu.fb.color_clear_value = clear->value; + } + else { + memset(spu.ztile_status, TILE_STATUS_CLEAR, sizeof(spu.ztile_status)); + spu.fb.depth_clear_value = clear->value; + } + return; +#endif + + if (clear->surface == 0) { + spu.fb.color_clear_value = clear->value; + clear_c_tile(&spu.ctile); + } + else { + spu.fb.depth_clear_value = clear->value; + clear_z_tile(&spu.ztile); + } + + /* + printf("SPU: %s num=%d w=%d h=%d\n", + __FUNCTION__, num_tiles, spu.fb.width_tiles, spu.fb.height_tiles); + */ + + for (i = spu.init.id; i < num_tiles; i += spu.init.num_spus) { + uint tx = i % spu.fb.width_tiles; + uint ty = i / spu.fb.width_tiles; + if (clear->surface == 0) + put_tile(tx, ty, &spu.ctile, TAG_SURFACE_CLEAR, 0); + else + put_tile(tx, ty, &spu.ztile, TAG_SURFACE_CLEAR, 1); + /* XXX we don't want this here, but it fixes bad tile results */ + } + +#if 0 + wait_on_mask(1 << TAG_SURFACE_CLEAR); +#endif + + if (Debug) + printf("SPU %u: CLEAR SURF done\n", spu.init.id); +} + + +static void +cmd_release_verts(const struct cell_command_release_verts *release) +{ + if (Debug) + printf("SPU %u: RELEASE VERTS %u\n", + spu.init.id, release->vertex_buf); + ASSERT(release->vertex_buf != ~0U); + release_buffer(release->vertex_buf); +} + + +static void +cmd_state_framebuffer(const struct cell_command_framebuffer *cmd) +{ + if (Debug) + printf("SPU %u: FRAMEBUFFER: %d x %d at %p, cformat 0x%x zformat 0x%x\n", + spu.init.id, + cmd->width, + cmd->height, + cmd->color_start, + cmd->color_format, + cmd->depth_format); + + ASSERT_ALIGN16(cmd->color_start); + ASSERT_ALIGN16(cmd->depth_start); + + spu.fb.color_start = cmd->color_start; + spu.fb.depth_start = cmd->depth_start; + spu.fb.color_format = cmd->color_format; + spu.fb.depth_format = cmd->depth_format; + spu.fb.width = cmd->width; + spu.fb.height = cmd->height; + spu.fb.width_tiles = (spu.fb.width + TILE_SIZE - 1) / TILE_SIZE; + spu.fb.height_tiles = (spu.fb.height + TILE_SIZE - 1) / TILE_SIZE; + + if (spu.fb.depth_format == PIPE_FORMAT_Z32_UNORM) + spu.fb.zsize = 4; + else if (spu.fb.depth_format == PIPE_FORMAT_Z16_UNORM) + spu.fb.zsize = 2; + else + spu.fb.zsize = 0; + + if (spu.fb.color_format == PIPE_FORMAT_A8R8G8B8_UNORM) + spu.color_shuffle = ((vector unsigned char) { + 12, 0, 4, 8, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0}); + else if (spu.fb.color_format == PIPE_FORMAT_B8G8R8A8_UNORM) + spu.color_shuffle = ((vector unsigned char) { + 8, 4, 0, 12, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0}); + else + ASSERT(0); +} + + +static void +cmd_state_blend(const struct pipe_blend_state *state) +{ + if (Debug) + printf("SPU %u: BLEND: enabled %d\n", + spu.init.id, + state->blend_enable); + + memcpy(&spu.blend, state, sizeof(*state)); +} + + +static void +cmd_state_depth_stencil(const struct pipe_depth_stencil_alpha_state *state) +{ + if (Debug) + printf("SPU %u: DEPTH_STENCIL: ztest %d\n", + spu.init.id, + state->depth.enabled); + + memcpy(&spu.depth_stencil, state, sizeof(*state)); +} + + +static void +cmd_state_sampler(const struct pipe_sampler_state *state) +{ + if (Debug) + printf("SPU %u: SAMPLER\n", + spu.init.id); + + memcpy(&spu.sampler[0], state, sizeof(*state)); + if (spu.sampler[0].min_img_filter == PIPE_TEX_FILTER_LINEAR) + spu.sample_texture = sample_texture_bilinear; + else + spu.sample_texture = sample_texture_nearest; +} + + +static void +cmd_state_texture(const struct cell_command_texture *texture) +{ + if (Debug) + printf("SPU %u: TEXTURE at %p size %u x %u\n", + spu.init.id, texture->start, texture->width, texture->height); + + memcpy(&spu.texture, texture, sizeof(*texture)); + spu.tex_size = (vector float) + { spu.texture.width, spu.texture.height, 0.0, 0.0}; + spu.tex_size_mask = (vector unsigned int) + { spu.texture.width - 1, spu.texture.height - 1, 0, 0 }; +} + + +static void +cmd_state_vertex_info(const struct vertex_info *vinfo) +{ + if (Debug) { + printf("SPU %u: VERTEX_INFO num_attribs=%u\n", spu.init.id, + vinfo->num_attribs); + } + ASSERT(vinfo->num_attribs >= 1); + ASSERT(vinfo->num_attribs <= 8); + memcpy(&spu.vertex_info, vinfo, sizeof(*vinfo)); +} + + +static void +cmd_state_vs_array_info(const struct cell_array_info *vs_info) +{ + const unsigned attr = vs_info->attr; + + ASSERT(attr < PIPE_ATTRIB_MAX); + draw.vertex_fetch.src_ptr[attr] = vs_info->base; + draw.vertex_fetch.pitch[attr] = vs_info->pitch; + draw.vertex_fetch.format[attr] = vs_info->format; + draw.vertex_fetch.dirty = 1; +} + + +static void +cmd_finish(void) +{ + if (Debug) + printf("SPU %u: FINISH\n", spu.init.id); + really_clear_tiles(0); + /* wait for all outstanding DMAs to finish */ + mfc_write_tag_mask(~0); + mfc_read_tag_status_all(); + /* send mbox message to PPU */ + spu_write_out_mbox(CELL_CMD_FINISH); +} + + +/** + * Execute a batch of commands + * The opcode param encodes the location of the buffer and its size. + */ +static void +cmd_batch(uint opcode) +{ + const uint buf = (opcode >> 8) & 0xff; + uint size = (opcode >> 16); + uint64_t buffer[CELL_BUFFER_SIZE / 8] ALIGN16_ATTRIB; + const unsigned usize = size / sizeof(buffer[0]); + uint pos; + + if (Debug) + printf("SPU %u: BATCH buffer %u, len %u, from %p\n", + spu.init.id, buf, size, spu.init.buffers[buf]); + + ASSERT((opcode & CELL_CMD_OPCODE_MASK) == CELL_CMD_BATCH); + + ASSERT_ALIGN16(spu.init.buffers[buf]); + + size = ROUNDUP16(size); + + ASSERT_ALIGN16(spu.init.buffers[buf]); + + mfc_get(buffer, /* dest */ + (unsigned int) spu.init.buffers[buf], /* src */ + size, + TAG_BATCH_BUFFER, + 0, /* tid */ + 0 /* rid */); + wait_on_mask(1 << TAG_BATCH_BUFFER); + + /* Tell PPU we're done copying the buffer to local store */ + if (Debug) + printf("SPU %u: release batch buf %u\n", spu.init.id, buf); + release_buffer(buf); + + for (pos = 0; pos < usize; /* no incr */) { + switch (buffer[pos]) { + case CELL_CMD_STATE_FRAMEBUFFER: + { + struct cell_command_framebuffer *fb + = (struct cell_command_framebuffer *) &buffer[pos]; + cmd_state_framebuffer(fb); + pos += sizeof(*fb) / 8; + } + break; + case CELL_CMD_CLEAR_SURFACE: + { + struct cell_command_clear_surface *clr + = (struct cell_command_clear_surface *) &buffer[pos]; + cmd_clear_surface(clr); + pos += sizeof(*clr) / 8; + } + break; + case CELL_CMD_RENDER: + { + struct cell_command_render *render + = (struct cell_command_render *) &buffer[pos]; + uint pos_incr; + cmd_render(render, &pos_incr); + pos += pos_incr; + } + break; + case CELL_CMD_RELEASE_VERTS: + { + struct cell_command_release_verts *release + = (struct cell_command_release_verts *) &buffer[pos]; + cmd_release_verts(release); + pos += sizeof(*release) / 8; + } + break; + case CELL_CMD_FINISH: + cmd_finish(); + pos += 1; + break; + case CELL_CMD_STATE_BLEND: + cmd_state_blend((struct pipe_blend_state *) + &buffer[pos+1]); + pos += (1 + ROUNDUP8(sizeof(struct pipe_blend_state)) / 8); + break; + case CELL_CMD_STATE_DEPTH_STENCIL: + cmd_state_depth_stencil((struct pipe_depth_stencil_alpha_state *) + &buffer[pos+1]); + pos += (1 + ROUNDUP8(sizeof(struct pipe_depth_stencil_alpha_state)) / 8); + break; + case CELL_CMD_STATE_SAMPLER: + cmd_state_sampler((struct pipe_sampler_state *) &buffer[pos+1]); + pos += (1 + ROUNDUP8(sizeof(struct pipe_sampler_state)) / 8); + break; + case CELL_CMD_STATE_TEXTURE: + cmd_state_texture((struct cell_command_texture *) &buffer[pos+1]); + pos += (1 + ROUNDUP8(sizeof(struct cell_command_texture)) / 8); + break; + case CELL_CMD_STATE_VERTEX_INFO: + cmd_state_vertex_info((struct vertex_info *) &buffer[pos+1]); + pos += (1 + ROUNDUP8(sizeof(struct vertex_info)) / 8); + break; + case CELL_CMD_STATE_VIEWPORT: + (void) memcpy(& draw.viewport, &buffer[pos+1], + sizeof(struct pipe_viewport_state)); + pos += (1 + ROUNDUP8(sizeof(struct pipe_viewport_state)) / 8); + break; + case CELL_CMD_STATE_VS_ARRAY_INFO: + cmd_state_vs_array_info((struct cell_array_info *) &buffer[pos+1]); + pos += (1 + ROUNDUP8(sizeof(struct cell_array_info)) / 8); + break; + default: + printf("SPU %u: bad opcode: 0x%llx\n", spu.init.id, buffer[pos]); + ASSERT(0); + break; + } + } + + if (Debug) + printf("SPU %u: BATCH complete\n", spu.init.id); +} + + +/** + * Temporary/simple main loop for SPEs: Get a command, execute it, repeat. + */ +static void +main_loop(void) +{ + struct cell_command cmd; + int exitFlag = 0; + + if (Debug) + printf("SPU %u: Enter main loop\n", spu.init.id); + + ASSERT((sizeof(struct cell_command) & 0xf) == 0); + ASSERT_ALIGN16(&cmd); + + while (!exitFlag) { + unsigned opcode; + int tag = 0; + + if (Debug) + printf("SPU %u: Wait for cmd...\n", spu.init.id); + + /* read/wait from mailbox */ + opcode = (unsigned int) spu_read_in_mbox(); + + if (Debug) + printf("SPU %u: got cmd 0x%x\n", spu.init.id, opcode); + + /* command payload */ + mfc_get(&cmd, /* dest */ + (unsigned int) spu.init.cmd, /* src */ + sizeof(struct cell_command), /* bytes */ + tag, + 0, /* tid */ + 0 /* rid */); + wait_on_mask( 1 << tag ); + + /* + * NOTE: most commands should be contained in a batch buffer + */ + + switch (opcode & CELL_CMD_OPCODE_MASK) { + case CELL_CMD_EXIT: + if (Debug) + printf("SPU %u: EXIT\n", spu.init.id); + exitFlag = 1; + break; + case CELL_CMD_VS_EXECUTE: + spu_execute_vertex_shader(&draw, &cmd.vs); + break; + case CELL_CMD_BATCH: + cmd_batch(opcode); + break; + default: + printf("Bad opcode!\n"); + } + + } + + if (Debug) + printf("SPU %u: Exit main loop\n", spu.init.id); +} + + + +static void +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(); +} + + + +/* 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. + */ +#ifdef SPU_MAIN_PARAM_LONG_LONG +typedef unsigned long long main_param_t; +#else +typedef unsigned long main_param_t; +#endif + +/** + * SPE entrypoint. + */ +int +main(main_param_t speid, main_param_t argp) +{ + int tag = 0; + + (void) speid; + + ASSERT(sizeof(tile_t) == TILE_SIZE * TILE_SIZE * 4); + ASSERT(sizeof(struct cell_command_render) % 8 == 0); + + one_time_init(); + + if (Debug) + printf("SPU: main() speid=%lu\n", speid); + + mfc_get(&spu.init, /* dest */ + (unsigned int) argp, /* src */ + sizeof(struct cell_init_info), /* bytes */ + tag, + 0, /* tid */ + 0 /* rid */); + wait_on_mask( 1 << tag ); + +#if 0 + if (spu.init.id==0) + spu_test_misc(); +#endif + + main_loop(); + + return 0; +} |