[Mesa-dev] [PATCH v2 17/20] i965/cs: Support CS program precompile

[Jordan Justen]

Signed-off-by: Jordan Justen <jordan.l.justen at intel.com>
---
 src/mesa/drivers/dri/i965/brw_context.h  |  6 ++++++
 src/mesa/drivers/dri/i965/brw_cs.cpp     | 28 ++++++++++++++++++++++++++++
 src/mesa/drivers/dri/i965/brw_shader.cpp |  4 ++++
 src/mesa/drivers/dri/i965/brw_shader.h   |  3 +++
 4 files changed, 41 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index 9e13c59..44bedf0 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -1856,6 +1856,12 @@ brw_fragment_program_const(const struct gl_fragment_program *p)
    return (const struct brw_fragment_program *) p;
 }
 
+static inline struct brw_compute_program *
+brw_compute_program(struct gl_compute_program *p)
+{
+   return (struct brw_compute_program *) p;
+}
+
 /**
  * Pre-gen6, the register file of the EUs was shared between threads,
  * and each thread used some subset allocated on a 16-register block
diff --git a/src/mesa/drivers/dri/i965/brw_cs.cpp b/src/mesa/drivers/dri/i965/brw_cs.cpp
index 648f0f0..ea74bf1 100644
--- a/src/mesa/drivers/dri/i965/brw_cs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_cs.cpp
@@ -270,3 +270,31 @@ brw_upload_cs_prog(struct brw_context *brw)
    }
    brw->cs.base.prog_data = &brw->cs.prog_data->base;
 }
+
+
+extern "C" 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;
+}
diff --git a/src/mesa/drivers/dri/i965/brw_shader.cpp b/src/mesa/drivers/dri/i965/brw_shader.cpp
index c89127a..dca8571 100644
--- a/src/mesa/drivers/dri/i965/brw_shader.cpp
+++ b/src/mesa/drivers/dri/i965/brw_shader.cpp
@@ -73,6 +73,7 @@ brw_shader_precompile(struct gl_context *ctx,
    struct gl_shader *vs = sh_prog->_LinkedShaders[MESA_SHADER_VERTEX];
    struct gl_shader *gs = sh_prog->_LinkedShaders[MESA_SHADER_GEOMETRY];
    struct gl_shader *fs = sh_prog->_LinkedShaders[MESA_SHADER_FRAGMENT];
+   struct gl_shader *cs = sh_prog->_LinkedShaders[MESA_SHADER_COMPUTE];
 
    if (fs && !brw_fs_precompile(ctx, sh_prog, fs->Program))
       return false;
@@ -83,6 +84,9 @@ brw_shader_precompile(struct gl_context *ctx,
    if (vs && !brw_vs_precompile(ctx, sh_prog, vs->Program))
       return false;
 
+   if (cs && !brw_cs_precompile(ctx, sh_prog, cs->Program))
+      return false;
+
    return true;
 }
 
diff --git a/src/mesa/drivers/dri/i965/brw_shader.h b/src/mesa/drivers/dri/i965/brw_shader.h
index ac4e62a..ebce51d 100644
--- a/src/mesa/drivers/dri/i965/brw_shader.h
+++ b/src/mesa/drivers/dri/i965/brw_shader.h
@@ -287,6 +287,9 @@ bool brw_gs_precompile(struct gl_context *ctx,
 bool brw_fs_precompile(struct gl_context *ctx,
                        struct gl_shader_program *shader_prog,
                        struct gl_program *prog);
+bool brw_cs_precompile(struct gl_context *ctx,
+                       struct gl_shader_program *shader_prog,
+                       struct gl_program *prog);
 
 #ifdef __cplusplus
 }
-- 
2.1.4