5 files changed, 12 insertions, 1 deletions
diff --git a/src/gallium/drivers/virgl/virgl_context.c b/src/gallium/drivers/virgl/virgl_context.c
index 5f643788664..987cdc38be2 100644
--- a/src/gallium/drivers/virgl/virgl_context.c
+++ b/src/gallium/drivers/virgl/virgl_context.c
@@ -1409,6 +1409,10 @@ static void virgl_send_tweaks(struct virgl_context *vctx, struct virgl_screen *r
 
    if (rs->tweak_gles_apply_bgra_dest_swizzle)
       virgl_encode_tweak(vctx, virgl_tweak_gles_brga_apply_dest_swizzle, 1);
+
+   if (rs->tweak_gles_tf3_value > 0)
+      virgl_encode_tweak(vctx, virgl_tweak_gles_tf3_samples_passes_multiplier,
+                         rs->tweak_gles_tf3_value);
 }
 
 struct pipe_context *virgl_context_create(struct pipe_screen *pscreen,
diff --git a/src/gallium/drivers/virgl/virgl_driinfo.h.in b/src/gallium/drivers/virgl/virgl_driinfo.h.in
index d6162b3f39a..cbb0bc5a77b 100644
--- a/src/gallium/drivers/virgl/virgl_driinfo.h.in
+++ b/src/gallium/drivers/virgl/virgl_driinfo.h.in
@@ -9,5 +9,5 @@
 DRI_CONF_SECTION_MISCELLANEOUS
     DRI_CONF_GLES_EMULATE_BGRA("false")
     DRI_CONF_GLES_APPLY_BGRA_DEST_SWIZZLE("false")
+    DRI_CONF_GLES_SAMPLES_PASSED_VALUE(int, 1024, "1:400000000")
 DRI_CONF_SECTION_END
-
diff --git a/src/gallium/drivers/virgl/virgl_protocol.h b/src/gallium/drivers/virgl/virgl_protocol.h
index 73795a8a7cd..d14caa292b3 100644
--- a/src/gallium/drivers/virgl/virgl_protocol.h
+++ b/src/gallium/drivers/virgl/virgl_protocol.h
@@ -594,6 +594,7 @@ enum virgl_context_cmd {
 enum vrend_tweak_type {
    virgl_tweak_gles_brga_emulate,
    virgl_tweak_gles_brga_apply_dest_swizzle,
+   virgl_tweak_gles_tf3_samples_passes_multiplier,
    virgl_tweak_undefined
 };
 
diff --git a/src/gallium/drivers/virgl/virgl_screen.c b/src/gallium/drivers/virgl/virgl_screen.c
index e96a10ffbc7..be684dbf3c1 100644
--- a/src/gallium/drivers/virgl/virgl_screen.c
+++ b/src/gallium/drivers/virgl/virgl_screen.c
@@ -856,6 +856,8 @@ virgl_create_screen(struct virgl_winsys *vws, const struct pipe_screen_config *c
 
    const char *VIRGL_GLES_EMULATE_BGRA = "gles_emulate_bgra";
    const char *VIRGL_GLES_APPLY_BGRA_DEST_SWIZZLE = "gles_apply_bgra_dest_swizzle";
+   const char *VIRGL_GLES_SAMPLES_PASSED_VALUE = "gles_samples_passed_value";
+
    if (!screen)
       return NULL;
 
@@ -866,7 +868,10 @@ virgl_create_screen(struct virgl_winsys *vws, const struct pipe_screen_config *c
             driQueryOptionb(config->options, VIRGL_GLES_EMULATE_BGRA);
       screen->tweak_gles_apply_bgra_dest_swizzle =
             driQueryOptionb(config->options, VIRGL_GLES_APPLY_BGRA_DEST_SWIZZLE);
+      screen->tweak_gles_tf3_value =
+            driQueryOptioni(config->options, VIRGL_GLES_SAMPLES_PASSED_VALUE);
    }
+
    screen->vws = vws;
    screen->base.get_name = virgl_get_name;
    screen->base.get_vendor = virgl_get_vendor;
diff --git a/src/gallium/drivers/virgl/virgl_screen.h b/src/gallium/drivers/virgl/virgl_screen.h
index 89b06a25e35..089402d576d 100644
--- a/src/gallium/drivers/virgl/virgl_screen.h
+++ b/src/gallium/drivers/virgl/virgl_screen.h
@@ -48,6 +48,7 @@ struct virgl_screen {
    uint32_t sub_ctx_id;
    bool tweak_gles_emulate_bgra;
    bool tweak_gles_apply_bgra_dest_swizzle;
+   int32_t tweak_gles_tf3_value;
 };