From 5c0d7dbcb9575bd8126d4d4ef83753664b848d27 Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Mon, 3 Dec 2012 18:28:29 -0800 Subject: i965: Rework vertex uploads for Broadwell. v2: Emit a dummy 3DSTATE_VF_SGVS packet when not needed. v3: Add WARN_ONCE and perf_debugs requested by Eric Anholt. v4: Program 3DSTATE_SGVS even in the no-elements case so gl_VertexID continues working. Fix 3DSTATE_VF_INSTANCING to not use an element index to access the buffers array. Some ARB_draw_indirect prep work. Signed-off-by: Kenneth Graunke Reviewed-by: Eric Anholt --- src/mesa/drivers/dri/i965/gen8_draw_upload.c | 250 +++++++++++++++++++++++++++ 1 file changed, 250 insertions(+) create mode 100644 src/mesa/drivers/dri/i965/gen8_draw_upload.c (limited to 'src/mesa/drivers/dri/i965/gen8_draw_upload.c') diff --git a/src/mesa/drivers/dri/i965/gen8_draw_upload.c b/src/mesa/drivers/dri/i965/gen8_draw_upload.c new file mode 100644 index 00000000000..f927c135dd9 --- /dev/null +++ b/src/mesa/drivers/dri/i965/gen8_draw_upload.c @@ -0,0 +1,250 @@ +/* + * Copyright © 2012 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + */ + +#include "main/glheader.h" +#include "main/bufferobj.h" +#include "main/context.h" +#include "main/enums.h" +#include "main/macros.h" + +#include "brw_draw.h" +#include "brw_defines.h" +#include "brw_context.h" +#include "brw_state.h" + +#include "intel_batchbuffer.h" +#include "intel_buffer_objects.h" + +static void +gen8_emit_vertices(struct brw_context *brw) +{ + struct gl_context *ctx = &brw->ctx; + + brw_prepare_vertices(brw); + + if (brw->vs.prog_data->uses_vertexid) { + unsigned vue = brw->vb.nr_enabled; + + WARN_ONCE(brw->vs.prog_data->inputs_read & VERT_BIT_EDGEFLAG, + "Using VID/IID with edgeflags, need to reorder the " + "vertex attributes"); + WARN_ONCE(vue >= 33, + "Trying to insert VID/IID past 33rd vertex element, " + "need to reorder the vertex attrbutes."); + + BEGIN_BATCH(2); + OUT_BATCH(_3DSTATE_VF_SGVS << 16 | (2 - 2)); + OUT_BATCH(GEN8_SGVS_ENABLE_VERTEX_ID | + (0 << GEN8_SGVS_VERTEX_ID_COMPONENT_SHIFT) | /* .x channel */ + (vue << GEN8_SGVS_VERTEX_ID_ELEMENT_OFFSET_SHIFT) | + GEN8_SGVS_ENABLE_INSTANCE_ID | + (1 << GEN8_SGVS_INSTANCE_ID_COMPONENT_SHIFT) | /* .y channel */ + (vue << GEN8_SGVS_INSTANCE_ID_ELEMENT_OFFSET_SHIFT)); + ADVANCE_BATCH(); + } else { + BEGIN_BATCH(2); + OUT_BATCH(_3DSTATE_VF_SGVS << 16 | (2 - 2)); + OUT_BATCH(0); + ADVANCE_BATCH(); + } + + /* If the VS doesn't read any inputs (calculating vertex position from + * a state variable for some reason, for example), emit a single pad + * VERTEX_ELEMENT struct and bail. + * + * The stale VB state stays in place, but they don't do anything unless + * a VE loads from them. + */ + if (brw->vb.nr_enabled == 0) { + BEGIN_BATCH(3); + OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS << 16) | (3 - 2)); + OUT_BATCH((0 << GEN6_VE0_INDEX_SHIFT) | + GEN6_VE0_VALID | + (BRW_SURFACEFORMAT_R32G32B32A32_FLOAT << BRW_VE0_FORMAT_SHIFT) | + (0 << BRW_VE0_SRC_OFFSET_SHIFT)); + OUT_BATCH((BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_0_SHIFT) | + (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_1_SHIFT) | + (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) | + (BRW_VE1_COMPONENT_STORE_1_FLT << BRW_VE1_COMPONENT_3_SHIFT)); + ADVANCE_BATCH(); + return; + } + + /* Now emit 3DSTATE_VERTEX_BUFFERS and 3DSTATE_VERTEX_ELEMENTS packets. */ + if (brw->vb.nr_buffers) { + assert(brw->vb.nr_buffers <= 33); + + perf_debug("Missing MOCS setup for 3DSTATE_VERTEX_BUFFERS."); + + BEGIN_BATCH(1 + 4*brw->vb.nr_buffers); + OUT_BATCH((_3DSTATE_VERTEX_BUFFERS << 16) | (4*brw->vb.nr_buffers - 1)); + for (unsigned i = 0; i < brw->vb.nr_buffers; i++) { + struct brw_vertex_buffer *buffer = &brw->vb.buffers[i]; + uint32_t dw0 = 0; + + dw0 |= i << GEN6_VB0_INDEX_SHIFT; + dw0 |= GEN7_VB0_ADDRESS_MODIFYENABLE; + dw0 |= buffer->stride << BRW_VB0_PITCH_SHIFT; + + OUT_BATCH(dw0); + OUT_RELOC64(buffer->bo, I915_GEM_DOMAIN_VERTEX, 0, buffer->offset); + OUT_BATCH(buffer->bo->size); + } + ADVANCE_BATCH(); + } + + unsigned nr_elements = brw->vb.nr_enabled; + + /* The hardware allows one more VERTEX_ELEMENTS than VERTEX_BUFFERS, + * presumably for VertexID/InstanceID. + */ + assert(nr_elements <= 34); + + struct brw_vertex_element *gen6_edgeflag_input = NULL; + + BEGIN_BATCH(1 + nr_elements * 2); + OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS << 16) | (2 * nr_elements - 1)); + for (unsigned i = 0; i < brw->vb.nr_enabled; i++) { + struct brw_vertex_element *input = brw->vb.enabled[i]; + uint32_t format = brw_get_vertex_surface_type(brw, input->glarray); + uint32_t comp0 = BRW_VE1_COMPONENT_STORE_SRC; + uint32_t comp1 = BRW_VE1_COMPONENT_STORE_SRC; + uint32_t comp2 = BRW_VE1_COMPONENT_STORE_SRC; + uint32_t comp3 = BRW_VE1_COMPONENT_STORE_SRC; + + /* The gen4 driver expects edgeflag to come in as a float, and passes + * that float on to the tests in the clipper. Mesa's current vertex + * attribute value for EdgeFlag is stored as a float, which works out. + * glEdgeFlagPointer, on the other hand, gives us an unnormalized + * integer ubyte. Just rewrite that to convert to a float. + */ + if (input->attrib == VERT_ATTRIB_EDGEFLAG) { + /* Gen6+ passes edgeflag as sideband along with the vertex, instead + * of in the VUE. We have to upload it sideband as the last vertex + * element according to the B-Spec. + */ + gen6_edgeflag_input = input; + continue; + } + + switch (input->glarray->Size) { + case 0: comp0 = BRW_VE1_COMPONENT_STORE_0; + case 1: comp1 = BRW_VE1_COMPONENT_STORE_0; + case 2: comp2 = BRW_VE1_COMPONENT_STORE_0; + case 3: comp3 = input->glarray->Integer ? BRW_VE1_COMPONENT_STORE_1_INT + : BRW_VE1_COMPONENT_STORE_1_FLT; + break; + } + + OUT_BATCH((input->buffer << GEN6_VE0_INDEX_SHIFT) | + GEN6_VE0_VALID | + (format << BRW_VE0_FORMAT_SHIFT) | + (input->offset << BRW_VE0_SRC_OFFSET_SHIFT)); + + OUT_BATCH((comp0 << BRW_VE1_COMPONENT_0_SHIFT) | + (comp1 << BRW_VE1_COMPONENT_1_SHIFT) | + (comp2 << BRW_VE1_COMPONENT_2_SHIFT) | + (comp3 << BRW_VE1_COMPONENT_3_SHIFT)); + } + + if (gen6_edgeflag_input) { + uint32_t format = + brw_get_vertex_surface_type(brw, gen6_edgeflag_input->glarray); + + OUT_BATCH((gen6_edgeflag_input->buffer << GEN6_VE0_INDEX_SHIFT) | + GEN6_VE0_VALID | + GEN6_VE0_EDGE_FLAG_ENABLE | + (format << BRW_VE0_FORMAT_SHIFT) | + (gen6_edgeflag_input->offset << BRW_VE0_SRC_OFFSET_SHIFT)); + OUT_BATCH((BRW_VE1_COMPONENT_STORE_SRC << BRW_VE1_COMPONENT_0_SHIFT) | + (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_1_SHIFT) | + (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) | + (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_3_SHIFT)); + } + ADVANCE_BATCH(); + + for (unsigned i = 0; i < brw->vb.nr_enabled; i++) { + const struct brw_vertex_element *input = brw->vb.enabled[i]; + const struct brw_vertex_buffer *buffer = &brw->vb.buffers[input->buffer]; + + BEGIN_BATCH(3); + OUT_BATCH(_3DSTATE_VF_INSTANCING << 16 | (3 - 2)); + OUT_BATCH(i | (buffer->step_rate ? GEN8_VF_INSTANCING_ENABLE : 0)); + OUT_BATCH(buffer->step_rate); + ADVANCE_BATCH(); + } +} + +const struct brw_tracked_state gen8_vertices = { + .dirty = { + .mesa = _NEW_POLYGON, + .brw = BRW_NEW_BATCH | BRW_NEW_VERTICES, + .cache = CACHE_NEW_VS_PROG, + }, + .emit = gen8_emit_vertices, +}; + +static void +gen8_emit_index_buffer(struct brw_context *brw) +{ + const struct _mesa_index_buffer *index_buffer = brw->ib.ib; + + if (index_buffer == NULL) + return; + + perf_debug("Missing MOCS setup for 3DSTATE_INDEX_BUFFER."); + + BEGIN_BATCH(5); + OUT_BATCH(CMD_INDEX_BUFFER << 16 | (5 - 2)); + OUT_BATCH(brw_get_index_type(index_buffer->type) << 8); + OUT_RELOC64(brw->ib.bo, I915_GEM_DOMAIN_VERTEX, 0, 0); + OUT_BATCH(brw->ib.bo->size); + ADVANCE_BATCH(); +} + +const struct brw_tracked_state gen8_index_buffer = { + .dirty = { + .mesa = 0, + .brw = BRW_NEW_BATCH | BRW_NEW_INDEX_BUFFER, + .cache = 0, + }, + .emit = gen8_emit_index_buffer, +}; + +static void +gen8_emit_vf_topology(struct brw_context *brw) +{ + BEGIN_BATCH(2); + OUT_BATCH(_3DSTATE_VF_TOPOLOGY << 16 | (2 - 2)); + OUT_BATCH(brw->primitive); + ADVANCE_BATCH(); +} + +const struct brw_tracked_state gen8_vf_topology = { + .dirty = { + .mesa = 0, + .brw = BRW_NEW_PRIMITIVE, + .cache = 0, + }, + .emit = gen8_emit_vf_topology, +}; -- cgit v1.2.3