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-rw-r--r--src/gallium/drivers/cell/spu/spu_command.c621
1 files changed, 621 insertions, 0 deletions
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 0000000000..91a4c137e7
--- /dev/null
+++ b/src/gallium/drivers/cell/spu/spu_command.c
@@ -0,0 +1,621 @@
+/**************************************************************************
+ *
+ * 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 uint
+cmd_state_fs_constants(const uint64_t *buffer, uint pos)
+{
+ const uint num_const = buffer[pos + 1];
+ const float *constants = (const float *) &buffer[pos + 2];
+ uint i;
+
+ DEBUG_PRINTF("CMD_STATE_FS_CONSTANTS (%u)\n", num_const);
+
+ /* Expand each float to float[4] for SOA execution */
+ for (i = 0; i < num_const; i++) {
+ spu.constants[i] = spu_splats(constants[i]);
+ }
+
+ /* return new buffer pos (in 8-byte words) */
+ return pos + 2 + num_const / 2;
+}
+
+
+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_FS_CONSTANTS:
+ pos = cmd_state_fs_constants(buffer, pos);
+ 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();
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-07 00:36:16 +0000