7 files changed, 25 insertions, 2 deletions
diff --git a/src/gallium/include/state_tracker/st_api.h b/src/gallium/include/state_tracker/st_api.h
index a2e37d2e488..1b9ef290b1f 100644
--- a/src/gallium/include/state_tracker/st_api.h
+++ b/src/gallium/include/state_tracker/st_api.h
@@ -245,6 +245,7 @@ struct st_config_options
    unsigned force_glsl_version;
    boolean force_s3tc_enable;
    boolean allow_glsl_extension_directive_midshader;
+   boolean allow_higher_compat_version;
    boolean glsl_zero_init;
 };
 
diff --git a/src/gallium/state_trackers/dri/dri_screen.c b/src/gallium/state_trackers/dri/dri_screen.c
index a950f5241d2..1e278c3d1c2 100644
--- a/src/gallium/state_trackers/dri/dri_screen.c
+++ b/src/gallium/state_trackers/dri/dri_screen.c
@@ -70,6 +70,7 @@ const __DRIconfigOptionsExtension gallium_config_options = {
          DRI_CONF_DISABLE_SHADER_BIT_ENCODING("false")
          DRI_CONF_FORCE_GLSL_VERSION(0)
          DRI_CONF_ALLOW_GLSL_EXTENSION_DIRECTIVE_MIDSHADER("false")
+         DRI_CONF_ALLOW_HIGHER_COMPAT_VERSION("false")
       DRI_CONF_SECTION_END
 
       DRI_CONF_SECTION_MISCELLANEOUS
@@ -99,6 +100,8 @@ dri_fill_st_options(struct st_config_options *options,
       driQueryOptionb(optionCache, "force_s3tc_enable");
    options->allow_glsl_extension_directive_midshader =
       driQueryOptionb(optionCache, "allow_glsl_extension_directive_midshader");
+   options->allow_higher_compat_version =
+      driQueryOptionb(optionCache, "allow_higher_compat_version");
    options->glsl_zero_init = driQueryOptionb(optionCache, "glsl_zero_init");
 }
 
diff --git a/src/mesa/drivers/dri/common/xmlpool/t_options.h b/src/mesa/drivers/dri/common/xmlpool/t_options.h
index a189bbedec6..f200093177d 100644
--- a/src/mesa/drivers/dri/common/xmlpool/t_options.h
+++ b/src/mesa/drivers/dri/common/xmlpool/t_options.h
@@ -115,6 +115,11 @@ DRI_CONF_OPT_BEGIN_B(allow_glsl_extension_directive_midshader, def) \
         DRI_CONF_DESC(en,gettext("Allow GLSL #extension directives in the middle of shaders")) \
 DRI_CONF_OPT_END
 
+#define DRI_CONF_ALLOW_HIGHER_COMPAT_VERSION(def) \
+DRI_CONF_OPT_BEGIN_B(allow_higher_compat_version, def) \
+        DRI_CONF_DESC(en,gettext("Allow a higher compat profile (version 3.1+) for apps that request it")) \
+DRI_CONF_OPT_END
+
 
 
 /**
diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index 7240b1f4455..c56a14e3d66 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -916,6 +916,9 @@ brw_process_driconf_options(struct brw_context *brw)
    ctx->Const.AllowGLSLExtensionDirectiveMidShader =
       driQueryOptionb(options, "allow_glsl_extension_directive_midshader");
 
+   ctx->Const.AllowHigherCompatVersion =
+      driQueryOptionb(options, "allow_higher_compat_version");
+
    ctx->Const.GLSLZeroInit = driQueryOptionb(options, "glsl_zero_init");
 
    brw->dual_color_blend_by_location =
diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index a845a394c8f..08bd929255c 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -3501,6 +3501,13 @@ struct gl_constants
    GLboolean AllowGLSLExtensionDirectiveMidShader;
 
    /**
+    * Allow creating a higher compat profile (version 3.1+) for apps that
+    * request it. Be careful when adding that driconf option because some
+    * features are unimplemented and might not work correctly.
+    */
+   GLboolean AllowHigherCompatVersion;
+
+   /**
     * Force uninitialized variables to default to zero.
     */
    GLboolean GLSLZeroInit;
diff --git a/src/mesa/main/version.c b/src/mesa/main/version.c
index 85ec9de6122..3d54d21a042 100644
--- a/src/mesa/main/version.c
+++ b/src/mesa/main/version.c
@@ -566,8 +566,10 @@ _mesa_get_version(const struct gl_extensions *extensions,
    case API_OPENGL_COMPAT:
       /* Disable GLSL 1.40 and later for legacy contexts.
        * This disallows creation of the GL 3.1 compatibility context. */
-      if (consts->GLSLVersion > 130) {
-         consts->GLSLVersion = 130;
+      if (!consts->AllowHigherCompatVersion) {
+         if (consts->GLSLVersion > 130) {
+            consts->GLSLVersion = 130;
+         }
       }
       /* fall through */
    case API_OPENGL_CORE:
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
index 293814e3aec..37fe4469c37 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -879,6 +879,8 @@ void st_init_extensions(struct pipe_screen *screen,
       consts->ForceGLSLVersion = options->force_glsl_version;
    }
 
+   consts->AllowHigherCompatVersion = options->allow_higher_compat_version;
+
    if (consts->GLSLVersion >= 400)
       extensions->ARB_gpu_shader5 = GL_TRUE;
    if (consts->GLSLVersion >= 410)