Mesa (gallium-0.2): cell: move command processing code into new spu_command .c file
Brian Paul
brianp at kemper.freedesktop.org
Fri Sep 26 17:04:31 UTC 2008
Module: Mesa
Branch: gallium-0.2
Commit: 9d00cd3fc726a3fe01b98fd222dd4c71b3e95d44
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=9d00cd3fc726a3fe01b98fd222dd4c71b3e95d44
Author: Brian Paul <brian.paul at tungstengraphics.com>
Date: Fri Sep 26 10:15:11 2008 -0600
cell: move command processing code into new spu_command.c file
---
src/gallium/drivers/cell/spu/Makefile | 3 +-
src/gallium/drivers/cell/spu/spu_command.c | 599 ++++++++++++++++++++++++++++
src/gallium/drivers/cell/spu/spu_command.h | 7 +
src/gallium/drivers/cell/spu/spu_main.c | 558 +--------------------------
4 files changed, 611 insertions(+), 556 deletions(-)
diff --git a/src/gallium/drivers/cell/spu/Makefile b/src/gallium/drivers/cell/spu/Makefile
index c2db852..116453b 100644
--- a/src/gallium/drivers/cell/spu/Makefile
+++ b/src/gallium/drivers/cell/spu/Makefile
@@ -16,8 +16,9 @@ PROG_SPU_EMBED_O = $(PROG)_spu-embed.o
SOURCES = \
- spu_funcs.c \
+ spu_command.c \
spu_dcache.c \
+ spu_funcs.c \
spu_main.c \
spu_per_fragment_op.c \
spu_render.c \
diff --git a/src/gallium/drivers/cell/spu/spu_command.c b/src/gallium/drivers/cell/spu/spu_command.c
new file mode 100644
index 0000000..ec9da5d
--- /dev/null
+++ b/src/gallium/drivers/cell/spu/spu_command.c
@@ -0,0 +1,599 @@
+/**************************************************************************
+ *
+ * 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.
+ *
+ **************************************************************************/
+
+
+/**
+ * SPU command processing code
+ */
+
+
+#include <stdio.h>
+#include <libmisc.h>
+
+#include "pipe/p_defines.h"
+
+#include "spu_command.h"
+#include "spu_main.h"
+#include "spu_render.h"
+#include "spu_per_fragment_op.h"
+#include "spu_texture.h"
+#include "spu_tile.h"
+#include "spu_vertex_shader.h"
+#include "spu_dcache.h"
+#include "spu_debug.h"
+#include "cell/common.h"
+
+
+struct spu_vs_context draw;
+
+
+/**
+ * Buffers containing dynamically generated SPU code:
+ */
+static unsigned char attribute_fetch_code_buffer[136 * PIPE_MAX_ATTRIBS]
+ ALIGN16_ATTRIB;
+
+
+
+/**
+ * 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 */);
+}
+
+
+static void
+cmd_clear_surface(const struct cell_command_clear_surface *clear)
+{
+ DEBUG_PRINTF("CLEAR SURF %u to 0x%08x\n", clear->surface, clear->value);
+
+ if (clear->surface == 0) {
+ spu.fb.color_clear_value = clear->value;
+ if (spu.init.debug_flags & CELL_DEBUG_CHECKER) {
+ uint x = (spu.init.id << 4) | (spu.init.id << 12) |
+ (spu.init.id << 20) | (spu.init.id << 28);
+ spu.fb.color_clear_value ^= x;
+ }
+ }
+ else {
+ spu.fb.depth_clear_value = clear->value;
+ }
+
+#define CLEAR_OPT 1
+#if CLEAR_OPT
+
+ /* Simply set all tiles' status to CLEAR.
+ * When we actually begin rendering into a tile, we'll initialize it to
+ * the clear value. If any tiles go untouched during the frame,
+ * really_clear_tiles() will set them to the clear value.
+ */
+ if (clear->surface == 0) {
+ memset(spu.ctile_status, TILE_STATUS_CLEAR, sizeof(spu.ctile_status));
+ }
+ else {
+ memset(spu.ztile_status, TILE_STATUS_CLEAR, sizeof(spu.ztile_status));
+ }
+
+#else
+
+ /*
+ * This path clears the whole framebuffer to the clear color right now.
+ */
+
+ /*
+ printf("SPU: %s num=%d w=%d h=%d\n",
+ __FUNCTION__, num_tiles, spu.fb.width_tiles, spu.fb.height_tiles);
+ */
+
+ /* init a single tile to the clear value */
+ if (clear->surface == 0) {
+ clear_c_tile(&spu.ctile);
+ }
+ else {
+ clear_z_tile(&spu.ztile);
+ }
+
+ /* walk over my tiles, writing the 'clear' tile's data */
+ {
+ const uint num_tiles = spu.fb.width_tiles * spu.fb.height_tiles;
+ uint i;
+ 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);
+ }
+ }
+
+ if (spu.init.debug_flags & CELL_DEBUG_SYNC) {
+ wait_on_mask(1 << TAG_SURFACE_CLEAR);
+ }
+
+#endif /* CLEAR_OPT */
+
+ DEBUG_PRINTF("CLEAR SURF done\n");
+}
+
+
+static void
+cmd_release_verts(const struct cell_command_release_verts *release)
+{
+ DEBUG_PRINTF("RELEASE VERTS %u\n", release->vertex_buf);
+ ASSERT(release->vertex_buf != ~0U);
+ release_buffer(release->vertex_buf);
+}
+
+
+/**
+ * Process a CELL_CMD_STATE_FRAGMENT_OPS command.
+ * This involves installing new fragment ops SPU code.
+ * If this function is never called, we'll use a regular C fallback function
+ * for fragment processing.
+ */
+static void
+cmd_state_fragment_ops(const struct cell_command_fragment_ops *fops)
+{
+ static int warned = 0;
+
+ DEBUG_PRINTF("CMD_STATE_FRAGMENT_OPS\n");
+ /* Copy SPU code from batch buffer to spu buffer */
+ memcpy(spu.fragment_ops_code, fops->code, SPU_MAX_FRAGMENT_OPS_INSTS * 4);
+ /* Copy state info (for fallback case only) */
+ memcpy(&spu.depth_stencil_alpha, &fops->dsa, sizeof(fops->dsa));
+ memcpy(&spu.blend, &fops->blend, sizeof(fops->blend));
+
+ /* 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.
+ */
+ if ((spu.init.debug_flags & CELL_DEBUG_FRAGMENT_OP_FALLBACK) == 0) {
+ spu.fragment_ops = (spu_fragment_ops_func) spu.fragment_ops_code;
+ }
+ else {
+ /* otherwise, the default fallback code remains in place */
+ if (!warned) {
+ fprintf(stderr, "Cell Warning: using fallback per-fragment code\n");
+ warned = 1;
+ }
+ }
+
+ spu.read_depth = spu.depth_stencil_alpha.depth.enabled;
+ spu.read_stencil = spu.depth_stencil_alpha.stencil[0].enabled;
+}
+
+
+static void
+cmd_state_fragment_program(const struct cell_command_fragment_program *fp)
+{
+ DEBUG_PRINTF("CMD_STATE_FRAGMENT_PROGRAM\n");
+ /* Copy SPU code from batch buffer to spu buffer */
+ memcpy(spu.fragment_program_code, fp->code,
+ SPU_MAX_FRAGMENT_PROGRAM_INSTS * 4);
+#if 01
+ /* Point function pointer at new code */
+ spu.fragment_program = (spu_fragment_program_func)spu.fragment_program_code;
+#endif
+}
+
+
+static void
+cmd_state_framebuffer(const struct cell_command_framebuffer *cmd)
+{
+ DEBUG_PRINTF("FRAMEBUFFER: %d x %d at %p, cformat 0x%x zformat 0x%x\n",
+ 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;
+
+ switch (spu.fb.depth_format) {
+ case PIPE_FORMAT_Z32_UNORM:
+ spu.fb.zsize = 4;
+ spu.fb.zscale = (float) 0xffffffffu;
+ break;
+ case PIPE_FORMAT_Z24S8_UNORM:
+ case PIPE_FORMAT_S8Z24_UNORM:
+ case PIPE_FORMAT_Z24X8_UNORM:
+ case PIPE_FORMAT_X8Z24_UNORM:
+ spu.fb.zsize = 4;
+ spu.fb.zscale = (float) 0x00ffffffu;
+ break;
+ case PIPE_FORMAT_Z16_UNORM:
+ spu.fb.zsize = 2;
+ spu.fb.zscale = (float) 0xffffu;
+ break;
+ default:
+ spu.fb.zsize = 0;
+ break;
+ }
+}
+
+
+static void
+cmd_state_sampler(const struct cell_command_sampler *sampler)
+{
+ DEBUG_PRINTF("SAMPLER [%u]\n", sampler->unit);
+
+ spu.sampler[sampler->unit] = sampler->state;
+ if (spu.sampler[sampler->unit].min_img_filter == PIPE_TEX_FILTER_LINEAR)
+ spu.sample_texture[sampler->unit] = sample_texture_bilinear;
+ else
+ spu.sample_texture[sampler->unit] = sample_texture_nearest;
+}
+
+
+static void
+cmd_state_texture(const struct cell_command_texture *texture)
+{
+ const uint unit = texture->unit;
+ const uint width = texture->width;
+ const uint height = texture->height;
+
+ DEBUG_PRINTF("TEXTURE [%u] at %p size %u x %u\n",
+ texture->unit, texture->start,
+ texture->width, texture->height);
+
+ spu.texture[unit].start = texture->start;
+ spu.texture[unit].width = width;
+ spu.texture[unit].height = height;
+
+ spu.texture[unit].tiles_per_row = width / TILE_SIZE;
+
+ spu.texture[unit].tex_size = (vector float) { width, height, 0.0, 0.0};
+ spu.texture[unit].tex_size_mask = (vector unsigned int)
+ { width - 1, height - 1, 0, 0 };
+ spu.texture[unit].tex_size_x_mask = spu_splats(width - 1);
+ spu.texture[unit].tex_size_y_mask = spu_splats(height - 1);
+}
+
+
+static void
+cmd_state_vertex_info(const struct vertex_info *vinfo)
+{
+ DEBUG_PRINTF("VERTEX_INFO num_attribs=%u\n", 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_MAX_ATTRIBS);
+ draw.vertex_fetch.src_ptr[attr] = vs_info->base;
+ draw.vertex_fetch.pitch[attr] = vs_info->pitch;
+ draw.vertex_fetch.size[attr] = vs_info->size;
+ draw.vertex_fetch.code_offset[attr] = vs_info->function_offset;
+ draw.vertex_fetch.dirty = 1;
+}
+
+
+static void
+cmd_state_attrib_fetch(const struct cell_attribute_fetch_code *code)
+{
+ mfc_get(attribute_fetch_code_buffer,
+ (unsigned int) code->base, /* src */
+ code->size,
+ TAG_BATCH_BUFFER,
+ 0, /* tid */
+ 0 /* rid */);
+ wait_on_mask(1 << TAG_BATCH_BUFFER);
+
+ draw.vertex_fetch.code = attribute_fetch_code_buffer;
+}
+
+
+static void
+cmd_finish(void)
+{
+ DEBUG_PRINTF("FINISH\n");
+ 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 which was sent to us by the PPU.
+ * See the cell_emit_state.c code to see where the commands come from.
+ *
+ * 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;
+
+ DEBUG_PRINTF("BATCH buffer %u, len %u, from %p\n",
+ 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 */
+ DEBUG_PRINTF("release batch buf %u\n", buf);
+ release_buffer(buf);
+
+ /*
+ * Loop over commands in the batch buffer
+ */
+ for (pos = 0; pos < usize; /* no incr */) {
+ switch (buffer[pos]) {
+ /*
+ * rendering commands
+ */
+ 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;
+ /*
+ * state-update commands
+ */
+ 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_STATE_FRAGMENT_OPS:
+ {
+ struct cell_command_fragment_ops *fops
+ = (struct cell_command_fragment_ops *) &buffer[pos];
+ cmd_state_fragment_ops(fops);
+ pos += sizeof(*fops) / 8;
+ }
+ break;
+ case CELL_CMD_STATE_FRAGMENT_PROGRAM:
+ {
+ struct cell_command_fragment_program *fp
+ = (struct cell_command_fragment_program *) &buffer[pos];
+ cmd_state_fragment_program(fp);
+ pos += sizeof(*fp) / 8;
+ }
+ break;
+ case CELL_CMD_STATE_SAMPLER:
+ {
+ struct cell_command_sampler *sampler
+ = (struct cell_command_sampler *) &buffer[pos];
+ cmd_state_sampler(sampler);
+ pos += sizeof(*sampler) / 8;
+ }
+ break;
+ case CELL_CMD_STATE_TEXTURE:
+ {
+ struct cell_command_texture *texture
+ = (struct cell_command_texture *) &buffer[pos];
+ cmd_state_texture(texture);
+ pos += sizeof(*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_UNIFORMS:
+ draw.constants = (const float (*)[4]) (uintptr_t) buffer[pos + 1];
+ pos += 2;
+ 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;
+ case CELL_CMD_STATE_BIND_VS:
+#if 0
+ spu_bind_vertex_shader(&draw,
+ (struct cell_shader_info *) &buffer[pos+1]);
+#endif
+ pos += (1 + ROUNDUP8(sizeof(struct cell_shader_info)) / 8);
+ break;
+ case CELL_CMD_STATE_ATTRIB_FETCH:
+ cmd_state_attrib_fetch((struct cell_attribute_fetch_code *)
+ &buffer[pos+1]);
+ pos += (1 + ROUNDUP8(sizeof(struct cell_attribute_fetch_code)) / 8);
+ break;
+ /*
+ * misc commands
+ */
+ case CELL_CMD_FINISH:
+ cmd_finish();
+ pos += 1;
+ 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_FLUSH_BUFFER_RANGE: {
+ struct cell_buffer_range *br = (struct cell_buffer_range *)
+ &buffer[pos+1];
+
+ spu_dcache_mark_dirty((unsigned) br->base, br->size);
+ pos += (1 + ROUNDUP8(sizeof(struct cell_buffer_range)) / 8);
+ break;
+ }
+ default:
+ printf("SPU %u: bad opcode: 0x%llx\n", spu.init.id, buffer[pos]);
+ ASSERT(0);
+ break;
+ }
+ }
+
+ DEBUG_PRINTF("BATCH complete\n");
+}
+
+
+
+/**
+ * Main loop for SPEs: Get a command, execute it, repeat.
+ */
+void
+command_loop(void)
+{
+ struct cell_command cmd;
+ int exitFlag = 0;
+
+ DEBUG_PRINTF("Enter command loop\n");
+
+ ASSERT((sizeof(struct cell_command) & 0xf) == 0);
+ ASSERT_ALIGN16(&cmd);
+
+ while (!exitFlag) {
+ unsigned opcode;
+ int tag = 0;
+
+ DEBUG_PRINTF("Wait for cmd...\n");
+
+ /* read/wait from mailbox */
+ opcode = (unsigned int) spu_read_in_mbox();
+
+ DEBUG_PRINTF("got cmd 0x%x\n", 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:
+ DEBUG_PRINTF("EXIT\n");
+ exitFlag = 1;
+ break;
+ case CELL_CMD_VS_EXECUTE:
+#if 0
+ spu_execute_vertex_shader(&draw, &cmd.vs);
+#endif
+ break;
+ case CELL_CMD_BATCH:
+ cmd_batch(opcode);
+ break;
+ default:
+ printf("Bad opcode 0x%x!\n", opcode & CELL_CMD_OPCODE_MASK);
+ }
+
+ }
+
+ DEBUG_PRINTF("Exit command loop\n");
+
+ spu_dcache_report();
+}
diff --git a/src/gallium/drivers/cell/spu/spu_command.h b/src/gallium/drivers/cell/spu/spu_command.h
new file mode 100644
index 0000000..853e9aa
--- /dev/null
+++ b/src/gallium/drivers/cell/spu/spu_command.h
@@ -0,0 +1,7 @@
+
+
+
+extern void
+command_loop(void);
+
+
diff --git a/src/gallium/drivers/cell/spu/spu_main.c b/src/gallium/drivers/cell/spu/spu_main.c
index bc94674..4becd0f 100644
--- a/src/gallium/drivers/cell/spu/spu_main.c
+++ b/src/gallium/drivers/cell/spu/spu_main.c
@@ -35,14 +35,11 @@
#include "pipe/p_defines.h"
#include "spu_funcs.h"
+#include "spu_command.h"
#include "spu_main.h"
-#include "spu_render.h"
#include "spu_per_fragment_op.h"
#include "spu_texture.h"
-#include "spu_tile.h"
//#include "spu_test.h"
-#include "spu_vertex_shader.h"
-#include "spu_dcache.h"
#include "spu_debug.h"
#include "cell/common.h"
@@ -55,8 +52,6 @@ helpful headers:
struct spu_global spu;
-struct spu_vs_context draw;
-
#if DEBUG
boolean Debug = FALSE;
@@ -64,554 +59,6 @@ boolean force_fragment_ops_fallback = TRUE;
#endif
-/**
- * Buffers containing dynamically generated SPU code:
- */
-static unsigned char attribute_fetch_code_buffer[136 * PIPE_MAX_ATTRIBS]
- ALIGN16_ATTRIB;
-
-
-
-/**
- * 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 */);
-}
-
-
-static void
-cmd_clear_surface(const struct cell_command_clear_surface *clear)
-{
- DEBUG_PRINTF("CLEAR SURF %u to 0x%08x\n", clear->surface, clear->value);
-
- if (clear->surface == 0) {
- spu.fb.color_clear_value = clear->value;
- if (spu.init.debug_flags & CELL_DEBUG_CHECKER) {
- uint x = (spu.init.id << 4) | (spu.init.id << 12) |
- (spu.init.id << 20) | (spu.init.id << 28);
- spu.fb.color_clear_value ^= x;
- }
- }
- else {
- spu.fb.depth_clear_value = clear->value;
- }
-
-#define CLEAR_OPT 1
-#if CLEAR_OPT
-
- /* Simply set all tiles' status to CLEAR.
- * When we actually begin rendering into a tile, we'll initialize it to
- * the clear value. If any tiles go untouched during the frame,
- * really_clear_tiles() will set them to the clear value.
- */
- if (clear->surface == 0) {
- memset(spu.ctile_status, TILE_STATUS_CLEAR, sizeof(spu.ctile_status));
- }
- else {
- memset(spu.ztile_status, TILE_STATUS_CLEAR, sizeof(spu.ztile_status));
- }
-
-#else
-
- /*
- * This path clears the whole framebuffer to the clear color right now.
- */
-
- /*
- printf("SPU: %s num=%d w=%d h=%d\n",
- __FUNCTION__, num_tiles, spu.fb.width_tiles, spu.fb.height_tiles);
- */
-
- /* init a single tile to the clear value */
- if (clear->surface == 0) {
- clear_c_tile(&spu.ctile);
- }
- else {
- clear_z_tile(&spu.ztile);
- }
-
- /* walk over my tiles, writing the 'clear' tile's data */
- {
- const uint num_tiles = spu.fb.width_tiles * spu.fb.height_tiles;
- uint i;
- 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);
- }
- }
-
- if (spu.init.debug_flags & CELL_DEBUG_SYNC) {
- wait_on_mask(1 << TAG_SURFACE_CLEAR);
- }
-
-#endif /* CLEAR_OPT */
-
- DEBUG_PRINTF("CLEAR SURF done\n");
-}
-
-
-static void
-cmd_release_verts(const struct cell_command_release_verts *release)
-{
- DEBUG_PRINTF("RELEASE VERTS %u\n", release->vertex_buf);
- ASSERT(release->vertex_buf != ~0U);
- release_buffer(release->vertex_buf);
-}
-
-
-/**
- * Process a CELL_CMD_STATE_FRAGMENT_OPS command.
- * This involves installing new fragment ops SPU code.
- * If this function is never called, we'll use a regular C fallback function
- * for fragment processing.
- */
-static void
-cmd_state_fragment_ops(const struct cell_command_fragment_ops *fops)
-{
- static int warned = 0;
-
- DEBUG_PRINTF("CMD_STATE_FRAGMENT_OPS\n");
- /* Copy SPU code from batch buffer to spu buffer */
- memcpy(spu.fragment_ops_code, fops->code, SPU_MAX_FRAGMENT_OPS_INSTS * 4);
- /* Copy state info (for fallback case only) */
- memcpy(&spu.depth_stencil_alpha, &fops->dsa, sizeof(fops->dsa));
- memcpy(&spu.blend, &fops->blend, sizeof(fops->blend));
-
- /* 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.
- */
- if ((spu.init.debug_flags & CELL_DEBUG_FRAGMENT_OP_FALLBACK) == 0) {
- spu.fragment_ops = (spu_fragment_ops_func) spu.fragment_ops_code;
- }
- else {
- /* otherwise, the default fallback code remains in place */
- if (!warned) {
- fprintf(stderr, "Cell Warning: using fallback per-fragment code\n");
- warned = 1;
- }
- }
-
- spu.read_depth = spu.depth_stencil_alpha.depth.enabled;
- spu.read_stencil = spu.depth_stencil_alpha.stencil[0].enabled;
-}
-
-
-static void
-cmd_state_fragment_program(const struct cell_command_fragment_program *fp)
-{
- DEBUG_PRINTF("CMD_STATE_FRAGMENT_PROGRAM\n");
- /* Copy SPU code from batch buffer to spu buffer */
- memcpy(spu.fragment_program_code, fp->code,
- SPU_MAX_FRAGMENT_PROGRAM_INSTS * 4);
-#if 01
- /* Point function pointer at new code */
- spu.fragment_program = (spu_fragment_program_func)spu.fragment_program_code;
-#endif
-}
-
-
-static void
-cmd_state_framebuffer(const struct cell_command_framebuffer *cmd)
-{
- DEBUG_PRINTF("FRAMEBUFFER: %d x %d at %p, cformat 0x%x zformat 0x%x\n",
- 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;
-
- switch (spu.fb.depth_format) {
- case PIPE_FORMAT_Z32_UNORM:
- spu.fb.zsize = 4;
- spu.fb.zscale = (float) 0xffffffffu;
- break;
- case PIPE_FORMAT_Z24S8_UNORM:
- case PIPE_FORMAT_S8Z24_UNORM:
- case PIPE_FORMAT_Z24X8_UNORM:
- case PIPE_FORMAT_X8Z24_UNORM:
- spu.fb.zsize = 4;
- spu.fb.zscale = (float) 0x00ffffffu;
- break;
- case PIPE_FORMAT_Z16_UNORM:
- spu.fb.zsize = 2;
- spu.fb.zscale = (float) 0xffffu;
- break;
- default:
- spu.fb.zsize = 0;
- break;
- }
-}
-
-
-static void
-cmd_state_sampler(const struct cell_command_sampler *sampler)
-{
- DEBUG_PRINTF("SAMPLER [%u]\n", sampler->unit);
-
- spu.sampler[sampler->unit] = sampler->state;
- if (spu.sampler[sampler->unit].min_img_filter == PIPE_TEX_FILTER_LINEAR)
- spu.sample_texture[sampler->unit] = sample_texture_bilinear;
- else
- spu.sample_texture[sampler->unit] = sample_texture_nearest;
-}
-
-
-static void
-cmd_state_texture(const struct cell_command_texture *texture)
-{
- const uint unit = texture->unit;
- const uint width = texture->width;
- const uint height = texture->height;
-
- DEBUG_PRINTF("TEXTURE [%u] at %p size %u x %u\n",
- texture->unit, texture->start,
- texture->width, texture->height);
-
- spu.texture[unit].start = texture->start;
- spu.texture[unit].width = width;
- spu.texture[unit].height = height;
-
- spu.texture[unit].tiles_per_row = width / TILE_SIZE;
-
- spu.texture[unit].tex_size = (vector float) { width, height, 0.0, 0.0};
- spu.texture[unit].tex_size_mask = (vector unsigned int)
- { width - 1, height - 1, 0, 0 };
- spu.texture[unit].tex_size_x_mask = spu_splats(width - 1);
- spu.texture[unit].tex_size_y_mask = spu_splats(height - 1);
-}
-
-
-static void
-cmd_state_vertex_info(const struct vertex_info *vinfo)
-{
- DEBUG_PRINTF("VERTEX_INFO num_attribs=%u\n", 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_MAX_ATTRIBS);
- draw.vertex_fetch.src_ptr[attr] = vs_info->base;
- draw.vertex_fetch.pitch[attr] = vs_info->pitch;
- draw.vertex_fetch.size[attr] = vs_info->size;
- draw.vertex_fetch.code_offset[attr] = vs_info->function_offset;
- draw.vertex_fetch.dirty = 1;
-}
-
-
-static void
-cmd_state_attrib_fetch(const struct cell_attribute_fetch_code *code)
-{
- mfc_get(attribute_fetch_code_buffer,
- (unsigned int) code->base, /* src */
- code->size,
- TAG_BATCH_BUFFER,
- 0, /* tid */
- 0 /* rid */);
- wait_on_mask(1 << TAG_BATCH_BUFFER);
-
- draw.vertex_fetch.code = attribute_fetch_code_buffer;
-}
-
-
-static void
-cmd_finish(void)
-{
- DEBUG_PRINTF("FINISH\n");
- 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 which was sent to us by the PPU.
- * See the cell_emit_state.c code to see where the commands come from.
- *
- * 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;
-
- DEBUG_PRINTF("BATCH buffer %u, len %u, from %p\n",
- 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 */
- DEBUG_PRINTF("release batch buf %u\n", buf);
- release_buffer(buf);
-
- /*
- * Loop over commands in the batch buffer
- */
- for (pos = 0; pos < usize; /* no incr */) {
- switch (buffer[pos]) {
- /*
- * rendering commands
- */
- 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;
- /*
- * state-update commands
- */
- 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_STATE_FRAGMENT_OPS:
- {
- struct cell_command_fragment_ops *fops
- = (struct cell_command_fragment_ops *) &buffer[pos];
- cmd_state_fragment_ops(fops);
- pos += sizeof(*fops) / 8;
- }
- break;
- case CELL_CMD_STATE_FRAGMENT_PROGRAM:
- {
- struct cell_command_fragment_program *fp
- = (struct cell_command_fragment_program *) &buffer[pos];
- cmd_state_fragment_program(fp);
- pos += sizeof(*fp) / 8;
- }
- break;
- case CELL_CMD_STATE_SAMPLER:
- {
- struct cell_command_sampler *sampler
- = (struct cell_command_sampler *) &buffer[pos];
- cmd_state_sampler(sampler);
- pos += sizeof(*sampler) / 8;
- }
- break;
- case CELL_CMD_STATE_TEXTURE:
- {
- struct cell_command_texture *texture
- = (struct cell_command_texture *) &buffer[pos];
- cmd_state_texture(texture);
- pos += sizeof(*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_UNIFORMS:
- draw.constants = (const float (*)[4]) (uintptr_t) buffer[pos + 1];
- pos += 2;
- 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;
- case CELL_CMD_STATE_BIND_VS:
-#if 0
- spu_bind_vertex_shader(&draw,
- (struct cell_shader_info *) &buffer[pos+1]);
-#endif
- pos += (1 + ROUNDUP8(sizeof(struct cell_shader_info)) / 8);
- break;
- case CELL_CMD_STATE_ATTRIB_FETCH:
- cmd_state_attrib_fetch((struct cell_attribute_fetch_code *)
- &buffer[pos+1]);
- pos += (1 + ROUNDUP8(sizeof(struct cell_attribute_fetch_code)) / 8);
- break;
- /*
- * misc commands
- */
- case CELL_CMD_FINISH:
- cmd_finish();
- pos += 1;
- 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_FLUSH_BUFFER_RANGE: {
- struct cell_buffer_range *br = (struct cell_buffer_range *)
- &buffer[pos+1];
-
- spu_dcache_mark_dirty((unsigned) br->base, br->size);
- pos += (1 + ROUNDUP8(sizeof(struct cell_buffer_range)) / 8);
- break;
- }
- default:
- printf("SPU %u: bad opcode: 0x%llx\n", spu.init.id, buffer[pos]);
- ASSERT(0);
- break;
- }
- }
-
- DEBUG_PRINTF("BATCH complete\n");
-}
-
-
-/**
- * Temporary/simple main loop for SPEs: Get a command, execute it, repeat.
- */
-static void
-main_loop(void)
-{
- struct cell_command cmd;
- int exitFlag = 0;
-
- DEBUG_PRINTF("Enter main loop\n");
-
- ASSERT((sizeof(struct cell_command) & 0xf) == 0);
- ASSERT_ALIGN16(&cmd);
-
- while (!exitFlag) {
- unsigned opcode;
- int tag = 0;
-
- DEBUG_PRINTF("Wait for cmd...\n");
-
- /* read/wait from mailbox */
- opcode = (unsigned int) spu_read_in_mbox();
-
- DEBUG_PRINTF("got cmd 0x%x\n", 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:
- DEBUG_PRINTF("EXIT\n");
- exitFlag = 1;
- break;
- case CELL_CMD_VS_EXECUTE:
-#if 0
- spu_execute_vertex_shader(&draw, &cmd.vs);
-#endif
- break;
- case CELL_CMD_BATCH:
- cmd_batch(opcode);
- break;
- default:
- printf("Bad opcode 0x%x!\n", opcode & CELL_CMD_OPCODE_MASK);
- }
-
- }
-
- DEBUG_PRINTF("Exit main loop\n");
-
- spu_dcache_report();
-}
-
-
-
static void
one_time_init(void)
{
@@ -658,6 +105,7 @@ main(main_param_t speid, main_param_t argp)
DEBUG_PRINTF("main() speid=%lu\n", (unsigned long) speid);
D_PRINTF(CELL_DEBUG_FRAGMENT_OP_FALLBACK, "using fragment op fallback\n");
+ /* get initialization data */
mfc_get(&spu.init, /* dest */
(unsigned int) argp, /* src */
sizeof(struct cell_init_info), /* bytes */
@@ -675,7 +123,7 @@ main(main_param_t speid, main_param_t argp)
spu_test_misc(spu.init.id);
#endif
- main_loop();
+ command_loop();
return 0;
}
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