diff options
Diffstat (limited to 'src/mesa/drivers/dri')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs.h | 1 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_visitor.cpp | 22 |
2 files changed, 23 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h index 6200deb7218..3d82adc1a22 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.h +++ b/src/mesa/drivers/dri/i965/brw_fs.h @@ -388,6 +388,7 @@ public: bool use_2nd_half = false); void emit_fb_writes(); void emit_urb_writes(); + void emit_cs_terminate(); void emit_shader_time_begin(); void emit_shader_time_end(); diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp index f37fdea6978..01d4cbd1ac7 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp @@ -4156,6 +4156,28 @@ fs_visitor::resolve_ud_negate(fs_reg *reg) *reg = temp; } +void +fs_visitor::emit_cs_terminate() +{ + assert(brw->gen >= 7); + + /* We are getting the thread ID from the compute shader header */ + assert(stage == MESA_SHADER_COMPUTE); + + /* We can't directly send from g0, since sends with EOT have to use + * g112-127. So, copy it to a virtual register, The register allocator will + * make sure it uses the appropriate register range. + */ + struct brw_reg g0 = retype(brw_vec8_grf(0, 0), BRW_REGISTER_TYPE_UD); + fs_reg payload = fs_reg(GRF, alloc.allocate(1), BRW_REGISTER_TYPE_UD); + fs_inst *inst = emit(MOV(payload, g0)); + inst->force_writemask_all = true; + + /* Send a message to the thread spawner to terminate the thread. */ + inst = emit(CS_OPCODE_CS_TERMINATE, reg_undef, payload); + inst->eot = true; +} + /** * Resolve the result of a Gen4-5 CMP instruction to a proper boolean. * |