i965/gen9: Optimize slice and subslice load balancing behavior.
[mesa.git] / src / mesa / drivers / dri / i965 / genX_blorp_exec.c
index faa0bfc83d47580a2b4e9f96b636d0e3077091d3..62a8310f68bc766740338620cb2e2f3b3a456470 100644 (file)
 
 #include "intel_batchbuffer.h"
 #include "intel_mipmap_tree.h"
+#include "intel_fbo.h"
 
 #include "brw_context.h"
 #include "brw_state.h"
 
-#include "blorp_priv.h"
+#include "blorp/blorp_genX_exec.h"
 
-#include "genxml/gen_macros.h"
+#if GEN_GEN <= 5
+#include "gen4_blorp_exec.h"
+#endif
+
+#include "brw_blorp.h"
 
 static void *
-blorp_emit_dwords(struct brw_context *brw, unsigned n)
+blorp_emit_dwords(struct blorp_batch *batch, unsigned n)
 {
-   intel_batchbuffer_begin(brw, n, RENDER_RING);
+   assert(batch->blorp->driver_ctx == batch->driver_batch);
+   struct brw_context *brw = batch->driver_batch;
+
+   intel_batchbuffer_begin(brw, n);
    uint32_t *map = brw->batch.map_next;
    brw->batch.map_next += n;
    intel_batchbuffer_advance(brw);
    return map;
 }
 
-struct blorp_address {
-   drm_intel_bo *buffer;
-   uint32_t read_domains;
-   uint32_t write_domain;
-   uint32_t offset;
-};
-
 static uint64_t
-blorp_emit_reloc(struct brw_context *brw, void *location,
-                 struct blorp_address address, uint32_t delta)
+blorp_emit_reloc(struct blorp_batch *batch,
+                 void *location, struct blorp_address address, uint32_t delta)
 {
-   uint32_t offset = (char *)location - (char *)brw->batch.map;
-   if (brw->gen >= 8) {
-      return intel_batchbuffer_reloc64(brw, address.buffer, offset,
-                                       address.read_domains,
-                                       address.write_domain,
-                                       address.offset + delta);
-   } else {
-      return intel_batchbuffer_reloc(brw, address.buffer, offset,
-                                     address.read_domains,
-                                     address.write_domain,
-                                     address.offset + delta);
+   assert(batch->blorp->driver_ctx == batch->driver_batch);
+   struct brw_context *brw = batch->driver_batch;
+   uint32_t offset;
+
+   if (GEN_GEN < 6 && brw_ptr_in_state_buffer(&brw->batch, location)) {
+      offset = (char *)location - (char *)brw->batch.state.map;
+      return brw_state_reloc(&brw->batch, offset,
+                             address.buffer, address.offset + delta,
+                             address.reloc_flags);
    }
+
+   assert(!brw_ptr_in_state_buffer(&brw->batch, location));
+
+   offset = (char *)location - (char *)brw->batch.batch.map;
+   return brw_batch_reloc(&brw->batch, offset,
+                          address.buffer, address.offset + delta,
+                          address.reloc_flags);
 }
 
-#define __gen_address_type struct blorp_address
-#define __gen_user_data struct brw_context
+static void
+blorp_surface_reloc(struct blorp_batch *batch, uint32_t ss_offset,
+                    struct blorp_address address, uint32_t delta)
+{
+   assert(batch->blorp->driver_ctx == batch->driver_batch);
+   struct brw_context *brw = batch->driver_batch;
+   struct brw_bo *bo = address.buffer;
+
+   uint64_t reloc_val =
+      brw_state_reloc(&brw->batch, ss_offset, bo, address.offset + delta,
+                      address.reloc_flags);
+
+   void *reloc_ptr = (void *)brw->batch.state.map + ss_offset;
+#if GEN_GEN >= 8
+   *(uint64_t *)reloc_ptr = reloc_val;
+#else
+   *(uint32_t *)reloc_ptr = reloc_val;
+#endif
+}
 
 static uint64_t
-__gen_combine_address(struct brw_context *brw, void *location,
-                      struct blorp_address address, uint32_t delta)
+blorp_get_surface_address(struct blorp_batch *blorp_batch,
+                          struct blorp_address address)
 {
-   if (address.buffer == NULL) {
-      return address.offset + delta;
-   } else {
-      return blorp_emit_reloc(brw, location, address, delta);
-   }
+   /* We'll let blorp_surface_reloc write the address. */
+   return 0ull;
 }
 
-#include "genxml/genX_pack.h"
+#if GEN_GEN >= 7 && GEN_GEN < 10
+static struct blorp_address
+blorp_get_surface_base_address(struct blorp_batch *batch)
+{
+   assert(batch->blorp->driver_ctx == batch->driver_batch);
+   struct brw_context *brw = batch->driver_batch;
+   return (struct blorp_address) {
+      .buffer = brw->batch.state.bo,
+      .offset = 0,
+   };
+}
+#endif
 
-#define _blorp_cmd_length(cmd) cmd ## _length
-#define _blorp_cmd_header(cmd) cmd ## _header
-#define _blorp_cmd_pack(cmd) cmd ## _pack
+static void *
+blorp_alloc_dynamic_state(struct blorp_batch *batch,
+                          uint32_t size,
+                          uint32_t alignment,
+                          uint32_t *offset)
+{
+   assert(batch->blorp->driver_ctx == batch->driver_batch);
+   struct brw_context *brw = batch->driver_batch;
 
-#define blorp_emit(brw, cmd, name)                                \
-   for (struct cmd name = { _blorp_cmd_header(cmd) },             \
-        *_dst = blorp_emit_dwords(brw, _blorp_cmd_length(cmd));   \
-        __builtin_expect(_dst != NULL, 1);                        \
-        _blorp_cmd_pack(cmd)(brw, (void *)_dst, &name),           \
-        _dst = NULL)
+   return brw_state_batch(brw, size, alignment, offset);
+}
 
 static void
-blorp_emit_sf_config(struct brw_context *brw,
-                     const struct brw_blorp_params *params)
+blorp_alloc_binding_table(struct blorp_batch *batch, unsigned num_entries,
+                          unsigned state_size, unsigned state_alignment,
+                          uint32_t *bt_offset, uint32_t *surface_offsets,
+                          void **surface_maps)
 {
-   const struct brw_blorp_prog_data *prog_data = params->wm_prog_data;
-
-   /* 3DSTATE_SF
-    *
-    * Disable ViewportTransformEnable (dw2.1)
-    *
-    * From the SandyBridge PRM, Volume 2, Part 1, Section 1.3, "3D
-    * Primitives Overview":
-    *     RECTLIST: Viewport Mapping must be DISABLED (as is typical with the
-    *     use of screen- space coordinates).
-    *
-    * A solid rectangle must be rendered, so set FrontFaceFillMode (dw2.4:3)
-    * and BackFaceFillMode (dw2.5:6) to SOLID(0).
-    *
-    * From the Sandy Bridge PRM, Volume 2, Part 1, Section
-    * 6.4.1.1 3DSTATE_SF, Field FrontFaceFillMode:
-    *     SOLID: Any triangle or rectangle object found to be front-facing
-    *     is rendered as a solid object. This setting is required when
-    *     (rendering rectangle (RECTLIST) objects.
-    */
-   blorp_emit(brw, GENX(3DSTATE_SF), sf) {
-      sf.FrontFaceFillMode = FILL_MODE_SOLID;
-      sf.BackFaceFillMode = FILL_MODE_SOLID;
-
-      sf.MultisampleRasterizationMode = params->dst.surf.samples > 1 ?
-         MSRASTMODE_ON_PATTERN : MSRASTMODE_OFF_PIXEL;
-
-      sf.VertexURBEntryReadOffset = BRW_SF_URB_ENTRY_READ_OFFSET;
-      if (prog_data) {
-         sf.NumberofSFOutputAttributes = prog_data->num_varying_inputs;
-         sf.VertexURBEntryReadLength = brw_blorp_get_urb_length(prog_data);
-         sf.ConstantInterpolationEnable = prog_data->flat_inputs;
-      } else {
-         sf.NumberofSFOutputAttributes = 0;
-         sf.VertexURBEntryReadLength = 1;
-      }
+   assert(batch->blorp->driver_ctx == batch->driver_batch);
+   struct brw_context *brw = batch->driver_batch;
+
+   uint32_t *bt_map = brw_state_batch(brw,
+                                      num_entries * sizeof(uint32_t), 32,
+                                      bt_offset);
+
+   for (unsigned i = 0; i < num_entries; i++) {
+      surface_maps[i] = brw_state_batch(brw,
+                                        state_size, state_alignment,
+                                        &(surface_offsets)[i]);
+      bt_map[i] = surface_offsets[i];
    }
 }
 
-static void
-blorp_emit_wm_config(struct brw_context *brw,
-                     const struct brw_blorp_params *params)
+static void *
+blorp_alloc_vertex_buffer(struct blorp_batch *batch, uint32_t size,
+                          struct blorp_address *addr)
 {
-   const struct brw_blorp_prog_data *prog_data = params->wm_prog_data;
+   assert(batch->blorp->driver_ctx == batch->driver_batch);
+   struct brw_context *brw = batch->driver_batch;
 
-   /* Even when thread dispatch is disabled, max threads (dw5.25:31) must be
-    * nonzero to prevent the GPU from hanging.  While the documentation doesn't
-    * mention this explicitly, it notes that the valid range for the field is
-    * [1,39] = [2,40] threads, which excludes zero.
+   /* From the Skylake PRM, 3DSTATE_VERTEX_BUFFERS:
+    *
+    *    "The VF cache needs to be invalidated before binding and then using
+    *    Vertex Buffers that overlap with any previously bound Vertex Buffer
+    *    (at a 64B granularity) since the last invalidation.  A VF cache
+    *    invalidate is performed by setting the "VF Cache Invalidation Enable"
+    *    bit in PIPE_CONTROL."
     *
-    * To be safe (and to minimize extraneous code) we go ahead and fully
-    * configure the WM state whether or not there is a WM program.
+    * This restriction first appears in the Skylake PRM but the internal docs
+    * also list it as being an issue on Broadwell.  In order to avoid this
+    * problem, we align all vertex buffer allocations to 64 bytes.
     */
-   blorp_emit(brw, GENX(3DSTATE_WM), wm) {
-      wm.MaximumNumberofThreads = brw->max_wm_threads - 1;
-
-      switch (params->hiz_op) {
-      case GEN6_HIZ_OP_DEPTH_CLEAR:
-         wm.DepthBufferClear = true;
-         break;
-      case GEN6_HIZ_OP_DEPTH_RESOLVE:
-         wm.DepthBufferResolveEnable = true;
-         break;
-      case GEN6_HIZ_OP_HIZ_RESOLVE:
-         wm.HierarchicalDepthBufferResolveEnable = true;
-         break;
-      case GEN6_HIZ_OP_NONE:
-         break;
-      default:
-         unreachable("not reached");
-      }
-
-      if (prog_data) {
-         wm.ThreadDispatchEnable = true;
-
-         wm.DispatchGRFStartRegisterforConstantSetupData0 =
-            prog_data->first_curbe_grf_0;
-         wm.DispatchGRFStartRegisterforConstantSetupData2 =
-            prog_data->first_curbe_grf_2;
-
-         wm.KernelStartPointer0 = params->wm_prog_kernel;
-         wm.KernelStartPointer2 =
-            params->wm_prog_kernel + prog_data->ksp_offset_2;
-
-         wm._8PixelDispatchEnable = prog_data->dispatch_8;
-         wm._16PixelDispatchEnable = prog_data->dispatch_16;
-
-         wm.NumberofSFOutputAttributes = prog_data->num_varying_inputs;
-      }
-
-      if (params->src.bo) {
-         wm.SamplerCount = 1; /* Up to 4 samplers */
-         wm.PixelShaderKillPixel = true; /* TODO: temporarily smash on */
-      }
+   uint32_t offset;
+   void *data = brw_state_batch(brw, size, 64, &offset);
+
+   *addr = (struct blorp_address) {
+      .buffer = brw->batch.state.bo,
+      .offset = offset,
+
+      /* The VF cache designers apparently cut corners, and made the cache
+       * only consider the bottom 32 bits of memory addresses.  If you happen
+       * to have two vertex buffers which get placed exactly 4 GiB apart and
+       * use them in back-to-back draw calls, you can get collisions.  To work
+       * around this problem, we restrict vertex buffers to the low 32 bits of
+       * the address space.
+       */
+      .reloc_flags = RELOC_32BIT,
+
+#if GEN_GEN == 11
+      .mocs = ICL_MOCS_WB,
+#elif GEN_GEN == 10
+      .mocs = CNL_MOCS_WB,
+#elif GEN_GEN == 9
+      .mocs = SKL_MOCS_WB,
+#elif GEN_GEN == 8
+      .mocs = BDW_MOCS_WB,
+#elif GEN_GEN == 7
+      .mocs = GEN7_MOCS_L3,
+#elif GEN_GEN > 6
+#error "Missing MOCS setting!"
+#endif
+   };
 
-      if (params->dst.surf.samples > 1) {
-         wm.MultisampleRasterizationMode = MSRASTMODE_ON_PATTERN;
-         wm.MultisampleDispatchMode =
-            (prog_data && prog_data->persample_msaa_dispatch) ?
-            MSDISPMODE_PERSAMPLE : MSDISPMODE_PERPIXEL;
-      } else {
-         wm.MultisampleRasterizationMode = MSRASTMODE_OFF_PIXEL;
-         wm.MultisampleDispatchMode = MSDISPMODE_PERSAMPLE;
-      }
-   }
+   return data;
 }
 
-
+/**
+ * See vf_invalidate_for_vb_48b_transitions in genX_state_upload.c.
+ */
 static void
-blorp_emit_depth_stencil_config(struct brw_context *brw,
-                                const struct brw_blorp_params *params)
+blorp_vf_invalidate_for_vb_48b_transitions(struct blorp_batch *batch,
+                                           const struct blorp_address *addrs,
+                                           unsigned num_vbs)
 {
-   brw_emit_depth_stall_flushes(brw);
-
-   blorp_emit(brw, GENX(3DSTATE_DEPTH_BUFFER), db) {
-      switch (params->depth.surf.dim) {
-      case ISL_SURF_DIM_1D:
-         db.SurfaceType = SURFTYPE_1D;
-         break;
-      case ISL_SURF_DIM_2D:
-         db.SurfaceType = SURFTYPE_2D;
-         break;
-      case ISL_SURF_DIM_3D:
-         db.SurfaceType = SURFTYPE_3D;
-         break;
+#if GEN_GEN >= 8 && GEN_GEN < 11
+   struct brw_context *brw = batch->driver_batch;
+   bool need_invalidate = false;
+
+   for (unsigned i = 0; i < num_vbs; i++) {
+      struct brw_bo *bo = addrs[i].buffer;
+      uint16_t high_bits =
+         bo && (bo->kflags & EXEC_OBJECT_PINNED) ? bo->gtt_offset >> 32u : 0;
+
+      if (high_bits != brw->vb.last_bo_high_bits[i]) {
+         need_invalidate = true;
+         brw->vb.last_bo_high_bits[i] = high_bits;
       }
-
-      db.SurfaceFormat = params->depth_format;
-
-      db.TiledSurface = true;
-      db.TileWalk = TILEWALK_YMAJOR;
-      db.MIPMapLayoutMode = MIPLAYOUT_BELOW;
-
-      db.HierarchicalDepthBufferEnable = true;
-      db.SeparateStencilBufferEnable = true;
-
-      db.Width = params->depth.surf.logical_level0_px.width - 1;
-      db.Height = params->depth.surf.logical_level0_px.height - 1;
-      db.RenderTargetViewExtent = db.Depth =
-         MAX2(params->depth.surf.logical_level0_px.depth,
-              params->depth.surf.logical_level0_px.array_len) - 1;
-
-      db.LOD = params->depth.view.base_level;
-      db.MinimumArrayElement = params->depth.view.base_array_layer;
-
-      db.SurfacePitch = params->depth.surf.row_pitch - 1;
-      db.SurfaceBaseAddress = (struct blorp_address) {
-         .buffer = params->depth.bo,
-         .read_domains = I915_GEM_DOMAIN_RENDER,
-         .write_domain = I915_GEM_DOMAIN_RENDER,
-         .offset = params->depth.offset,
-      };
    }
 
-   blorp_emit(brw, GENX(3DSTATE_HIER_DEPTH_BUFFER), hiz) {
-      hiz.SurfacePitch = params->depth.aux_surf.row_pitch - 1;
-      hiz.SurfaceBaseAddress = (struct blorp_address) {
-         .buffer = params->depth.aux_bo,
-         .read_domains = I915_GEM_DOMAIN_RENDER,
-         .write_domain = I915_GEM_DOMAIN_RENDER,
-         .offset = params->depth.aux_offset,
-      };
+   if (need_invalidate) {
+      brw_emit_pipe_control_flush(brw, PIPE_CONTROL_VF_CACHE_INVALIDATE | PIPE_CONTROL_CS_STALL);
    }
-
-   blorp_emit(brw, GENX(3DSTATE_STENCIL_BUFFER), sb);
-}
-
-static uint32_t
-blorp_emit_blend_state(struct brw_context *brw,
-                       const struct brw_blorp_params *params)
-{
-   struct GENX(BLEND_STATE) blend;
-   memset(&blend, 0, sizeof(blend));
-
-   for (unsigned i = 0; i < params->num_draw_buffers; ++i) {
-      blend.Entry[i].PreBlendColorClampEnable = true;
-      blend.Entry[i].PostBlendColorClampEnable = true;
-      blend.Entry[i].ColorClampRange = COLORCLAMP_RTFORMAT;
-
-      blend.Entry[i].WriteDisableRed = params->color_write_disable[0];
-      blend.Entry[i].WriteDisableGreen = params->color_write_disable[1];
-      blend.Entry[i].WriteDisableBlue = params->color_write_disable[2];
-      blend.Entry[i].WriteDisableAlpha = params->color_write_disable[3];
-   }
-
-   uint32_t offset;
-   void *state = brw_state_batch(brw, AUB_TRACE_BLEND_STATE,
-                                 GENX(BLEND_STATE_length) * 4, 64, &offset);
-   GENX(BLEND_STATE_pack)(NULL, state, &blend);
-
-   return offset;
+#endif
 }
 
-static uint32_t
-blorp_emit_color_calc_state(struct brw_context *brw,
-                            const struct brw_blorp_params *params)
+#if GEN_GEN >= 8
+static struct blorp_address
+blorp_get_workaround_page(struct blorp_batch *batch)
 {
-   uint32_t offset;
-   void *state = brw_state_batch(brw, AUB_TRACE_CC_STATE,
-                                 GENX(COLOR_CALC_STATE_length) * 4, 64, &offset);
-   memset(state, 0, GENX(COLOR_CALC_STATE_length) * 4);
+   assert(batch->blorp->driver_ctx == batch->driver_batch);
+   struct brw_context *brw = batch->driver_batch;
 
-   return offset;
+   return (struct blorp_address) {
+      .buffer = brw->workaround_bo,
+   };
 }
+#endif
 
-static uint32_t
-blorp_emit_depth_stencil_state(struct brw_context *brw,
-                               const struct brw_blorp_params *params)
+static void
+blorp_flush_range(UNUSED struct blorp_batch *batch, UNUSED void *start,
+                  UNUSED size_t size)
 {
-   /* See the following sections of the Sandy Bridge PRM, Volume 1, Part2:
-    *   - 7.5.3.1 Depth Buffer Clear
-    *   - 7.5.3.2 Depth Buffer Resolve
-    *   - 7.5.3.3 Hierarchical Depth Buffer Resolve
+   /* All allocated states come from the batch which we will flush before we
+    * submit it.  There's nothing for us to do here.
     */
-   struct GENX(DEPTH_STENCIL_STATE) ds = {
-      .DepthBufferWriteEnable = true,
-   };
-
-   if (params->hiz_op == GEN6_HIZ_OP_DEPTH_RESOLVE) {
-      ds.DepthTestEnable = true;
-      ds.DepthTestFunction = COMPAREFUNCTION_NEVER;
-   }
-
-   uint32_t offset;
-   void *state = brw_state_batch(brw, AUB_TRACE_DEPTH_STENCIL_STATE,
-                                 GENX(DEPTH_STENCIL_STATE_length) * 4, 64,
-                                 &offset);
-   GENX(DEPTH_STENCIL_STATE_pack)(NULL, state, &ds);
-
-   return offset;
 }
 
 static void
-blorp_emit_sampler_state(struct brw_context *brw,
-                         const struct brw_blorp_params *params)
+blorp_emit_urb_config(struct blorp_batch *batch,
+                      unsigned vs_entry_size,
+                      UNUSED unsigned sf_entry_size)
 {
-   struct GENX(SAMPLER_STATE) sampler = {
-      .MipModeFilter = MIPFILTER_NONE,
-      .MagModeFilter = MAPFILTER_LINEAR,
-      .MinModeFilter = MAPFILTER_LINEAR,
-      .MinLOD = 0,
-      .MaxLOD = 0,
-      .TCXAddressControlMode = TCM_CLAMP,
-      .TCYAddressControlMode = TCM_CLAMP,
-      .TCZAddressControlMode = TCM_CLAMP,
-      .MaximumAnisotropy = RATIO21,
-      .RAddressMinFilterRoundingEnable = true,
-      .RAddressMagFilterRoundingEnable = true,
-      .VAddressMinFilterRoundingEnable = true,
-      .VAddressMagFilterRoundingEnable = true,
-      .UAddressMinFilterRoundingEnable = true,
-      .UAddressMagFilterRoundingEnable = true,
-      .NonnormalizedCoordinateEnable = true,
-   };
-
-   uint32_t offset;
-   void *state = brw_state_batch(brw, AUB_TRACE_SAMPLER_STATE,
-                                 GENX(SAMPLER_STATE_length) * 4, 32, &offset);
-   GENX(SAMPLER_STATE_pack)(NULL, state, &sampler);
-
-   blorp_emit(brw, GENX(3DSTATE_SAMPLER_STATE_POINTERS), ssp) {
-      ssp.VSSamplerStateChange = true;
-      ssp.GSSamplerStateChange = true;
-      ssp.PSSamplerStateChange = true;
-      ssp.PointertoPSSamplerState = offset;
-   }
+   assert(batch->blorp->driver_ctx == batch->driver_batch);
+   struct brw_context *brw = batch->driver_batch;
+
+#if GEN_GEN >= 7
+   if (brw->urb.vsize >= vs_entry_size)
+      return;
+
+   gen7_upload_urb(brw, vs_entry_size, false, false);
+#elif GEN_GEN == 6
+   gen6_upload_urb(brw, vs_entry_size, false, 0);
+#else
+   /* We calculate it now and emit later. */
+   brw_calculate_urb_fence(brw, 0, vs_entry_size, sf_entry_size);
+#endif
 }
 
-/* 3DSTATE_VIEWPORT_STATE_POINTERS */
-static void
-blorp_emit_viewport_state(struct brw_context *brw,
-                          const struct brw_blorp_params *params)
+void
+genX(blorp_exec)(struct blorp_batch *batch,
+                 const struct blorp_params *params)
 {
-   uint32_t cc_vp_offset;
-
-   void *state = brw_state_batch(brw, AUB_TRACE_CC_VP_STATE,
-                                 GENX(CC_VIEWPORT_length) * 4, 32,
-                                 &cc_vp_offset);
-
-   GENX(CC_VIEWPORT_pack)(brw, state,
-      &(struct GENX(CC_VIEWPORT)) {
-         .MinimumDepth = 0.0,
-         .MaximumDepth = 1.0,
-      });
+   assert(batch->blorp->driver_ctx == batch->driver_batch);
+   struct brw_context *brw = batch->driver_batch;
+   struct gl_context *ctx = &brw->ctx;
+   bool check_aperture_failed_once = false;
 
-   blorp_emit(brw, GENX(3DSTATE_VIEWPORT_STATE_POINTERS), vsp) {
-      vsp.CCViewportStateChange = true;
-      vsp.PointertoCC_VIEWPORT = cc_vp_offset;
+#if GEN_GEN >= 11
+   /* The PIPE_CONTROL command description says:
+    *
+    * "Whenever a Binding Table Index (BTI) used by a Render Taget Message
+    *  points to a different RENDER_SURFACE_STATE, SW must issue a Render
+    *  Target Cache Flush by enabling this bit. When render target flush
+    *  is set due to new association of BTI, PS Scoreboard Stall bit must
+    *  be set in this packet."
+   */
+   brw_emit_pipe_control_flush(brw,
+                               PIPE_CONTROL_RENDER_TARGET_FLUSH |
+                               PIPE_CONTROL_STALL_AT_SCOREBOARD);
+#endif
+
+   /* Flush the sampler and render caches.  We definitely need to flush the
+    * sampler cache so that we get updated contents from the render cache for
+    * the glBlitFramebuffer() source.  Also, we are sometimes warned in the
+    * docs to flush the cache between reinterpretations of the same surface
+    * data with different formats, which blorp does for stencil and depth
+    * data.
+    */
+   if (params->src.enabled)
+      brw_cache_flush_for_read(brw, params->src.addr.buffer);
+   if (params->dst.enabled) {
+      brw_cache_flush_for_render(brw, params->dst.addr.buffer,
+                                 params->dst.view.format,
+                                 params->dst.aux_usage);
    }
-}
+   if (params->depth.enabled)
+      brw_cache_flush_for_depth(brw, params->depth.addr.buffer);
+   if (params->stencil.enabled)
+      brw_cache_flush_for_depth(brw, params->stencil.addr.buffer);
 
+   brw_select_pipeline(brw, BRW_RENDER_PIPELINE);
 
-/**
- * \brief Execute a blit or render pass operation.
- *
- * To execute the operation, this function manually constructs and emits a
- * batch to draw a rectangle primitive. The batchbuffer is flushed before
- * constructing and after emitting the batch.
- *
- * This function alters no GL state.
- */
-void
-genX(blorp_exec)(struct brw_context *brw,
-                 const struct brw_blorp_params *params)
-{
-   uint32_t blend_state_offset = 0;
-   uint32_t color_calc_state_offset = 0;
-   uint32_t depth_stencil_state_offset;
-   uint32_t wm_bind_bo_offset = 0;
+retry:
+   intel_batchbuffer_require_space(brw, 1400);
+   brw_require_statebuffer_space(brw, 600);
+   intel_batchbuffer_save_state(brw);
+   check_aperture_failed_once |= intel_batchbuffer_saved_state_is_empty(brw);
+   brw->batch.no_wrap = true;
 
+#if GEN_GEN == 6
    /* Emit workaround flushes when we switch from drawing to blorping. */
    brw_emit_post_sync_nonzero_flush(brw);
+#endif
 
    brw_upload_state_base_address(brw);
 
-   gen6_blorp_emit_vertices(brw, params);
+#if GEN_GEN >= 8
+   gen7_l3_state.emit(brw);
+#endif
 
-   /* 3DSTATE_URB
-    *
-    * Assign the entire URB to the VS. Even though the VS disabled, URB space
-    * is still needed because the clipper loads the VUE's from the URB. From
-    * the Sandybridge PRM, Volume 2, Part 1, Section 3DSTATE,
-    * Dword 1.15:0 "VS Number of URB Entries":
-    *     This field is always used (even if VS Function Enable is DISABLED).
-    *
-    * The warning below appears in the PRM (Section 3DSTATE_URB), but we can
-    * safely ignore it because this batch contains only one draw call.
-    *     Because of URB corruption caused by allocating a previous GS unit
-    *     URB entry to the VS unit, software is required to send a “GS NULL
-    *     Fence” (Send URB fence with VS URB size == 1 and GS URB size == 0)
-    *     plus a dummy DRAW call before any case where VS will be taking over
-    *     GS URB space.
-    */
-   blorp_emit(brw, GENX(3DSTATE_URB), urb) {
-      urb.VSNumberofURBEntries = brw->urb.max_vs_entries;
-   }
+#if GEN_GEN >= 6
+   brw_emit_depth_stall_flushes(brw);
+#endif
 
-   if (params->wm_prog_data) {
-      blend_state_offset = blorp_emit_blend_state(brw, params);
-      color_calc_state_offset = blorp_emit_color_calc_state(brw, params);
-   }
-   depth_stencil_state_offset = blorp_emit_depth_stencil_state(brw, params);
+#if GEN_GEN == 8
+   gen8_write_pma_stall_bits(brw, 0);
+#endif
 
-   /* 3DSTATE_CC_STATE_POINTERS
-    *
-    * The pointer offsets are relative to
-    * CMD_STATE_BASE_ADDRESS.DynamicStateBaseAddress.
-    *
-    * The HiZ op doesn't use BLEND_STATE or COLOR_CALC_STATE.
-    */
-   blorp_emit(brw, GENX(3DSTATE_CC_STATE_POINTERS), cc) {
-      cc.BLEND_STATEChange = true;
-      cc.COLOR_CALC_STATEChange = true;
-      cc.DEPTH_STENCIL_STATEChange = true;
-      cc.PointertoBLEND_STATE = blend_state_offset;
-      cc.PointertoCOLOR_CALC_STATE = color_calc_state_offset;
-      cc.PointertoDEPTH_STENCIL_STATE = depth_stencil_state_offset;
+   const unsigned scale = params->fast_clear_op ? UINT_MAX : 1;
+   if (brw->current_hash_scale != scale) {
+      brw_emit_hashing_mode(brw, params->x1 - params->x0,
+                            params->y1 - params->y0, scale);
    }
 
-   blorp_emit(brw, GENX(3DSTATE_CONSTANT_VS), vs);
-   blorp_emit(brw, GENX(3DSTATE_CONSTANT_GS), gs);
-   blorp_emit(brw, GENX(3DSTATE_CONSTANT_PS), ps);
-
-   if (params->wm_prog_data) {
-      uint32_t wm_surf_offset_renderbuffer;
-      uint32_t wm_surf_offset_texture = 0;
-
-      wm_surf_offset_renderbuffer =
-         brw_blorp_emit_surface_state(brw, &params->dst,
-                                      I915_GEM_DOMAIN_RENDER,
-                                      I915_GEM_DOMAIN_RENDER, true);
-      if (params->src.bo) {
-         wm_surf_offset_texture =
-            brw_blorp_emit_surface_state(brw, &params->src,
-                                         I915_GEM_DOMAIN_SAMPLER, 0, false);
-      }
-      wm_bind_bo_offset =
-         gen6_blorp_emit_binding_table(brw,
-                                       wm_surf_offset_renderbuffer,
-                                       wm_surf_offset_texture);
-
-      blorp_emit(brw, GENX(3DSTATE_BINDING_TABLE_POINTERS), bt) {
-         bt.PSBindingTableChange = true;
-         bt.PointertoPSBindingTable = wm_bind_bo_offset;
-      }
+   blorp_emit(batch, GENX(3DSTATE_DRAWING_RECTANGLE), rect) {
+      rect.ClippedDrawingRectangleXMax = MAX2(params->x1, params->x0) - 1;
+      rect.ClippedDrawingRectangleYMax = MAX2(params->y1, params->y0) - 1;
    }
 
-   if (params->src.bo)
-      blorp_emit_sampler_state(brw, params);
+   blorp_exec(batch, params);
 
-   gen6_emit_3dstate_multisample(brw, params->dst.surf.samples);
+   brw->batch.no_wrap = false;
 
-   blorp_emit(brw, GENX(3DSTATE_SAMPLE_MASK), mask) {
-      mask.SampleMask = (1 << params->dst.surf.samples) - 1;
-   }
-
-   /* From the BSpec, 3D Pipeline > Geometry > Vertex Shader > State,
-    * 3DSTATE_VS, Dword 5.0 "VS Function Enable":
-    *
-    *   [DevSNB] A pipeline flush must be programmed prior to a
-    *   3DSTATE_VS command that causes the VS Function Enable to
-    *   toggle. Pipeline flush can be executed by sending a PIPE_CONTROL
-    *   command with CS stall bit set and a post sync operation.
-    *
-    * We've already done one at the start of the BLORP operation.
+   /* Check if the blorp op we just did would make our batch likely to fail to
+    * map all the BOs into the GPU at batch exec time later.  If so, flush the
+    * batch and try again with nothing else in the batch.
     */
-   blorp_emit(brw, GENX(3DSTATE_VS), vs);
-   blorp_emit(brw, GENX(3DSTATE_GS), gs);
-
-   blorp_emit(brw, GENX(3DSTATE_CLIP), clip) {
-      clip.PerspectiveDivideDisable = true;
-   }
-
-   blorp_emit_sf_config(brw, params);
-   blorp_emit_wm_config(brw, params);
-
-   blorp_emit_viewport_state(brw, params);
-
-   if (params->depth.bo) {
-      blorp_emit_depth_stencil_config(brw, params);
-   } else {
-      brw_emit_depth_stall_flushes(brw);
-
-      blorp_emit(brw, GENX(3DSTATE_DEPTH_BUFFER), db) {
-         db.SurfaceType = SURFTYPE_NULL;
-         db.SurfaceFormat = D32_FLOAT;
+   if (!brw_batch_has_aperture_space(brw, 0)) {
+      if (!check_aperture_failed_once) {
+         check_aperture_failed_once = true;
+         intel_batchbuffer_reset_to_saved(brw);
+         intel_batchbuffer_flush(brw);
+         goto retry;
+      } else {
+         int ret = intel_batchbuffer_flush(brw);
+         WARN_ONCE(ret == -ENOSPC,
+                   "i965: blorp emit exceeded available aperture space\n");
       }
-      blorp_emit(brw, GENX(3DSTATE_HIER_DEPTH_BUFFER), hiz);
-      blorp_emit(brw, GENX(3DSTATE_STENCIL_BUFFER), sb);
    }
 
-   /* 3DSTATE_CLEAR_PARAMS
-    *
-    * From the Sandybridge PRM, Volume 2, Part 1, Section 3DSTATE_CLEAR_PARAMS:
-    *   [DevSNB] 3DSTATE_CLEAR_PARAMS packet must follow the DEPTH_BUFFER_STATE
-    *   packet when HiZ is enabled and the DEPTH_BUFFER_STATE changes.
-    */
-   blorp_emit(brw, GENX(3DSTATE_CLEAR_PARAMS), clear) {
-      clear.DepthClearValueValid = true;
-      clear.DepthClearValue = params->depth.clear_color.u32[0];
-   }
+   if (unlikely(brw->always_flush_batch))
+      intel_batchbuffer_flush(brw);
 
-   blorp_emit(brw, GENX(3DSTATE_DRAWING_RECTANGLE), rect) {
-      rect.ClippedDrawingRectangleXMax = MAX2(params->x1, params->x0) - 1;
-      rect.ClippedDrawingRectangleYMax = MAX2(params->y1, params->y0) - 1;
-   }
-
-   blorp_emit(brw, GENX(3DPRIMITIVE), prim) {
-      prim.VertexAccessType = SEQUENTIAL;
-      prim.PrimitiveTopologyType = _3DPRIM_RECTLIST;
-      prim.VertexCountPerInstance = 3;
-      prim.InstanceCount = params->num_layers;
+   /* We've smashed all state compared to what the normal 3D pipeline
+    * rendering tracks for GL.
+    */
+   brw->ctx.NewDriverState |= BRW_NEW_BLORP;
+   brw->no_depth_or_stencil = !params->depth.enabled &&
+                              !params->stencil.enabled;
+   brw->ib.index_size = -1;
+
+   if (params->dst.enabled) {
+      brw_render_cache_add_bo(brw, params->dst.addr.buffer,
+                              params->dst.view.format,
+                              params->dst.aux_usage);
    }
+   if (params->depth.enabled)
+      brw_depth_cache_add_bo(brw, params->depth.addr.buffer);
+   if (params->stencil.enabled)
+      brw_depth_cache_add_bo(brw, params->stencil.addr.buffer);
 }