1 files changed, 194 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_cs.c b/src/mesa/drivers/dri/i965/brw_cs.c
new file mode 100644
index 0000000..012c466
--- /dev/null
+++ b/src/mesa/drivers/dri/i965/brw_cs.c
@@ -0,0 +1,194 @@
+/*
+ * Copyright (c) 2014 - 2015 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#include "util/ralloc.h"
+#include "brw_context.h"
+#include "brw_cs.h"
+#include "brw_eu.h"
+#include "brw_wm.h"
+#include "brw_shader.h"
+#include "intel_mipmap_tree.h"
+#include "brw_state.h"
+#include "intel_batchbuffer.h"
+
+bool
+brw_cs_prog_data_compare(const void *in_a, const void *in_b)
+{
+   const struct brw_cs_prog_data *a =
+      (const struct brw_cs_prog_data *)in_a;
+   const struct brw_cs_prog_data *b =
+      (const struct brw_cs_prog_data *)in_b;
+
+   /* Compare the base structure. */
+   if (!brw_stage_prog_data_compare(&a->base, &b->base))
+      return false;
+
+   /* Compare the rest of the structure. */
+   const unsigned offset = sizeof(struct brw_stage_prog_data);
+   if (memcmp(((char *) a) + offset, ((char *) b) + offset,
+              sizeof(struct brw_cs_prog_data) - offset))
+      return false;
+
+   return true;
+}
+
+static bool
+brw_codegen_cs_prog(struct brw_context *brw,
+                    struct gl_shader_program *prog,
+                    struct brw_compute_program *cp,
+                    struct brw_cs_prog_key *key)
+{
+   struct gl_context *ctx = &brw->ctx;
+   const GLuint *program;
+   void *mem_ctx = ralloc_context(NULL);
+   GLuint program_size;
+   struct brw_cs_prog_data prog_data;
+
+   struct gl_shader *cs = prog->_LinkedShaders[MESA_SHADER_COMPUTE];
+   assert (cs);
+
+   memset(&prog_data, 0, sizeof(prog_data));
+
+   /* Allocate the references to the uniforms that will end up in the
+    * prog_data associated with the compiled program, and which will be freed
+    * by the state cache.
+    */
+   int param_count = cs->num_uniform_components +
+                     cs->NumImages * BRW_IMAGE_PARAM_SIZE;
+
+   /* The backend also sometimes adds params for texture size. */
+   param_count += 2 * ctx->Const.Program[MESA_SHADER_COMPUTE].MaxTextureImageUnits;
+   prog_data.base.param =
+      rzalloc_array(NULL, const gl_constant_value *, param_count);
+   prog_data.base.pull_param =
+      rzalloc_array(NULL, const gl_constant_value *, param_count);
+   prog_data.base.image_param =
+      rzalloc_array(NULL, struct brw_image_param, cs->NumImages);
+   prog_data.base.nr_params = param_count;
+   prog_data.base.nr_image_params = cs->NumImages;
+
+   program = brw_cs_emit(brw, mem_ctx, key, &prog_data,
+                         &cp->program, prog, &program_size);
+   if (program == NULL) {
+      ralloc_free(mem_ctx);
+      return false;
+   }
+
+   if (prog_data.base.total_scratch) {
+      brw_get_scratch_bo(brw, &brw->cs.base.scratch_bo,
+                         prog_data.base.total_scratch * brw->max_cs_threads);
+   }
+
+   if (unlikely(INTEL_DEBUG & DEBUG_CS))
+      fprintf(stderr, "\n");
+
+   brw_upload_cache(&brw->cache, BRW_CACHE_CS_PROG,
+                    key, sizeof(*key),
+                    program, program_size,
+                    &prog_data, sizeof(prog_data),
+                    &brw->cs.base.prog_offset, &brw->cs.prog_data);
+   ralloc_free(mem_ctx);
+
+   return true;
+}
+
+
+static void
+brw_cs_populate_key(struct brw_context *brw, struct brw_cs_prog_key *key)
+{
+   struct gl_context *ctx = &brw->ctx;
+   /* BRW_NEW_COMPUTE_PROGRAM */
+   const struct brw_compute_program *cp =
+      (struct brw_compute_program *) brw->compute_program;
+   const struct gl_program *prog = (struct gl_program *) cp;
+
+   memset(key, 0, sizeof(*key));
+
+   /* _NEW_TEXTURE */
+   brw_populate_sampler_prog_key_data(ctx, prog, brw->cs.base.sampler_count,
+                                      &key->tex);
+
+   /* The unique compute program ID */
+   key->program_string_id = cp->id;
+}
+
+
+void
+brw_upload_cs_prog(struct brw_context *brw)
+{
+   struct gl_context *ctx = &brw->ctx;
+   struct brw_cs_prog_key key;
+   struct brw_compute_program *cp = (struct brw_compute_program *)
+      brw->compute_program;
+
+   if (!cp)
+      return;
+
+   if (!brw_state_dirty(brw, _NEW_TEXTURE, BRW_NEW_COMPUTE_PROGRAM))
+      return;
+
+   brw->cs.base.sampler_count =
+      _mesa_fls(ctx->ComputeProgram._Current->Base.SamplersUsed);
+
+   brw_cs_populate_key(brw, &key);
+
+   if (!brw_search_cache(&brw->cache, BRW_CACHE_CS_PROG,
+                         &key, sizeof(key),
+                         &brw->cs.base.prog_offset, &brw->cs.prog_data)) {
+      bool success =
+         brw_codegen_cs_prog(brw,
+                             ctx->Shader.CurrentProgram[MESA_SHADER_COMPUTE],
+                             cp, &key);
+      (void) success;
+      assert(success);
+   }
+   brw->cs.base.prog_data = &brw->cs.prog_data->base;
+}
+
+
+bool
+brw_cs_precompile(struct gl_context *ctx,
+                  struct gl_shader_program *shader_prog,
+                  struct gl_program *prog)
+{
+   struct brw_context *brw = brw_context(ctx);
+   struct brw_cs_prog_key key;
+
+   struct gl_compute_program *cp = (struct gl_compute_program *) prog;
+   struct brw_compute_program *bcp = brw_compute_program(cp);
+
+   memset(&key, 0, sizeof(key));
+   key.program_string_id = bcp->id;
+
+   brw_setup_tex_for_precompile(brw, &key.tex, prog);
+
+   uint32_t old_prog_offset = brw->cs.base.prog_offset;
+   struct brw_cs_prog_data *old_prog_data = brw->cs.prog_data;
+
+   bool success = brw_codegen_cs_prog(brw, shader_prog, bcp, &key);
+
+   brw->cs.base.prog_offset = old_prog_offset;
+   brw->cs.prog_data = old_prog_data;
+
+   return success;
+}