[Mesa-dev] [PATCH 1/2] i965: Trigger CS state reemission when new sampler state is uploaded.

[Francisco Jerez]

This reuses the NEW_SAMPLER_STATE_TABLE state bit (currently only used
on pre-Gen7 hardware) to signal that the sampler state tables have
changed in order to make sure that the GPGPU interface descriptor is
updated.
---
 src/mesa/drivers/dri/i965/brw_sampler_state.c | 2 +-
 src/mesa/drivers/dri/i965/gen7_cs_state.c     | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/brw_sampler_state.c b/src/mesa/drivers/dri/i965/brw_sampler_state.c
index d181468..24798a5 100644
--- a/src/mesa/drivers/dri/i965/brw_sampler_state.c
+++ b/src/mesa/drivers/dri/i965/brw_sampler_state.c
@@ -582,7 +582,7 @@ brw_upload_sampler_state_table(struct brw_context *brw,
       batch_offset_for_sampler_state += size_in_bytes;
    }
 
-   if (brw->gen >= 7) {
+   if (brw->gen >= 7 && stage_state->stage != MESA_SHADER_COMPUTE) {
       /* Emit a 3DSTATE_SAMPLER_STATE_POINTERS_XS packet. */
       gen7_emit_sampler_state_pointers_xs(brw, stage_state);
    } else {
diff --git a/src/mesa/drivers/dri/i965/gen7_cs_state.c b/src/mesa/drivers/dri/i965/gen7_cs_state.c
index a025bb9..6d6988c 100644
--- a/src/mesa/drivers/dri/i965/gen7_cs_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_cs_state.c
@@ -196,6 +196,7 @@ const struct brw_tracked_state brw_cs_state = {
       .brw = BRW_NEW_BATCH |
              BRW_NEW_CS_PROG_DATA |
              BRW_NEW_PUSH_CONSTANT_ALLOCATION |
+             BRW_NEW_SAMPLER_STATE_TABLE |
              BRW_NEW_SURFACES,
    },
    .emit = brw_upload_cs_state
-- 
2.7.0