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authorNeil Roberts <[email protected]>2015-07-03 13:15:21 +0100
committerNeil Roberts <[email protected]>2015-07-06 08:15:31 -0700
commit493af150fb3b1c007d791b24dcd5ea8a92ad763c (patch)
tree2ff241e6bea3dbe8b6f8627bbbffa8b15bf66669
parentfc2726e4afa6dfb691affed576a38d2b0573465b (diff)
i965/skl: Set the pulls bary bit in 3DSTATE_PS_EXTRA
On Gen9+ there is a new bit in 3DSTATE_PS_EXTRA that must be set if the shader sends a message to the pixel interpolator. This fixes the interpolateAt* tests on SKL, apart from interpolateatsample-nonconst but that is not implemented anywhere so it's not a regression. Reviewed-by: Ben Widawsky <[email protected]> Reviewed-by: Kenneth Graunke <[email protected]> Cc: "10.6 10.5" <[email protected]>
-rw-r--r--src/mesa/drivers/dri/i965/brw_context.h1
-rw-r--r--src/mesa/drivers/dri/i965/brw_defines.h1
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs_nir.cpp4
-rw-r--r--src/mesa/drivers/dri/i965/gen8_ps_state.c3
4 files changed, 9 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index 3553f6ec48c..759613951d8 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -415,6 +415,7 @@ struct brw_wm_prog_data {
bool uses_pos_offset;
bool uses_omask;
bool uses_kill;
+ bool pulls_bary;
uint32_t prog_offset_16;
/**
diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h
index 66b9abc9991..19489aba5be 100644
--- a/src/mesa/drivers/dri/i965/brw_defines.h
+++ b/src/mesa/drivers/dri/i965/brw_defines.h
@@ -2145,6 +2145,7 @@ enum brw_pixel_shader_computed_depth_mode {
# define GEN8_PSX_SHADER_DISABLES_ALPHA_TO_COVERAGE (1 << 7)
# define GEN8_PSX_SHADER_IS_PER_SAMPLE (1 << 6)
# define GEN8_PSX_SHADER_COMPUTES_STENCIL (1 << 5)
+# define GEN9_PSX_SHADER_PULLS_BARY (1 << 3)
# define GEN8_PSX_SHADER_HAS_UAV (1 << 2)
# define GEN8_PSX_SHADER_USES_INPUT_COVERAGE_MASK (1 << 1)
diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
index bd71404ef8d..3ebc3a2c5e4 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
@@ -1481,6 +1481,10 @@ fs_visitor::nir_emit_intrinsic(const fs_builder &bld, nir_intrinsic_instr *instr
case nir_intrinsic_interp_var_at_centroid:
case nir_intrinsic_interp_var_at_sample:
case nir_intrinsic_interp_var_at_offset: {
+ assert(stage == MESA_SHADER_FRAGMENT);
+
+ ((struct brw_wm_prog_data *) prog_data)->pulls_bary = true;
+
fs_reg dst_xy = bld.vgrf(BRW_REGISTER_TYPE_F, 2);
/* For most messages, we need one reg of ignored data; the hardware
diff --git a/src/mesa/drivers/dri/i965/gen8_ps_state.c b/src/mesa/drivers/dri/i965/gen8_ps_state.c
index a88f109c691..d5445093e67 100644
--- a/src/mesa/drivers/dri/i965/gen8_ps_state.c
+++ b/src/mesa/drivers/dri/i965/gen8_ps_state.c
@@ -58,6 +58,9 @@ gen8_upload_ps_extra(struct brw_context *brw,
if (prog_data->uses_omask)
dw1 |= GEN8_PSX_OMASK_TO_RENDER_TARGET;
+ if (brw->gen >= 9 && prog_data->pulls_bary)
+ dw1 |= GEN9_PSX_SHADER_PULLS_BARY;
+
if (_mesa_active_fragment_shader_has_atomic_ops(&brw->ctx))
dw1 |= GEN8_PSX_SHADER_HAS_UAV;