i965: Giant pile of flushing to track down SNB bringup issues.

[mesa.git] / src / mesa / drivers / dri / i965 / gen6_gs_state.c

diff --git a/src/mesa/drivers/dri/i965/gen6_gs_state.c b/src/mesa/drivers/dri/i965/gen6_gs_state.c
index 3a16bd368ceefed59dc70a00baa46e6c8d09f81a..47702f7f3029ca2db6924d2439a89bd0900e054a 100644 (file)
--- a/src/mesa/drivers/dri/i965/gen6_gs_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_gs_state.c
@@ -38,19 +38,33 @@ upload_gs_state(struct brw_context *brw)
 {
    struct intel_context *intel = &brw->intel;
 
-   BEGIN_BATCH(6);
-   OUT_BATCH(CMD_3D_GS_STATE << 16 | (6 - 2));
-   OUT_BATCH(0); /* prog_bo */
-   /* OUT_RELOC(brw->gs.prog_bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 0); */
-   OUT_BATCH((0 << GEN6_GS_SAMPLER_COUNT_SHIFT) |
-            (0 << GEN6_GS_BINDING_TABLE_ENTRY_COUNT_SHIFT));
-   OUT_BATCH(0); /* scratch space base offset */
-   OUT_BATCH((1 << GEN6_GS_DISPATCH_START_GRF_SHIFT) |
-            (brw->gs.prog_data->urb_read_length << GEN6_GS_URB_READ_LENGTH_SHIFT) |
-            (0 << GEN6_GS_URB_ENTRY_READ_OFFSET_SHIFT));
-   OUT_BATCH((0 << GEN6_GS_MAX_THREADS_SHIFT) |
-            GEN6_GS_STATISTICS_ENABLE);
-   ADVANCE_BATCH();
+   if (brw->gs.prog_bo) {
+      BEGIN_BATCH(6);
+      OUT_BATCH(CMD_3D_GS_STATE << 16 | (6 - 2));
+      OUT_RELOC(brw->gs.prog_bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 0);
+      OUT_BATCH((0 << GEN6_GS_SAMPLER_COUNT_SHIFT) |
+               (0 << GEN6_GS_BINDING_TABLE_ENTRY_COUNT_SHIFT));
+      OUT_BATCH(0); /* scratch space base offset */
+      OUT_BATCH((1 << GEN6_GS_DISPATCH_START_GRF_SHIFT) |
+               (brw->gs.prog_data->urb_read_length << GEN6_GS_URB_READ_LENGTH_SHIFT) |
+               (0 << GEN6_GS_URB_ENTRY_READ_OFFSET_SHIFT));
+      OUT_BATCH((0 << GEN6_GS_MAX_THREADS_SHIFT) |
+               GEN6_GS_STATISTICS_ENABLE);
+      ADVANCE_BATCH();
+   } else {
+      BEGIN_BATCH(6);
+      OUT_BATCH(CMD_3D_GS_STATE << 16 | (6 - 2));
+      OUT_BATCH(0); /* prog_bo */
+      OUT_BATCH((0 << GEN6_GS_SAMPLER_COUNT_SHIFT) |
+               (0 << GEN6_GS_BINDING_TABLE_ENTRY_COUNT_SHIFT));
+      OUT_BATCH(0); /* scratch space base offset */
+      OUT_BATCH((1 << GEN6_GS_DISPATCH_START_GRF_SHIFT) |
+               (0 << GEN6_GS_URB_READ_LENGTH_SHIFT) |
+               (0 << GEN6_GS_URB_ENTRY_READ_OFFSET_SHIFT));
+      OUT_BATCH((0 << GEN6_GS_MAX_THREADS_SHIFT) |
+               GEN6_GS_STATISTICS_ENABLE);
+      ADVANCE_BATCH();
+   }
 
    /* Disable all the constant buffers. */
    BEGIN_BATCH(5);
@@ -60,6 +74,8 @@ upload_gs_state(struct brw_context *brw)
    OUT_BATCH(0);
    OUT_BATCH(0);
    ADVANCE_BATCH();
+
+   intel_batchbuffer_emit_mi_flush(intel->batch);
 }
 
 const struct brw_tracked_state gen6_gs_state = {