Signed-off-by: Topi Pohjolainen <topi.pohjolai...@intel.com>
---
 src/mesa/drivers/dri/i965/brw_blorp.c         |  9 +++--
 src/mesa/drivers/dri/i965/gen6_depth_state.c  | 12 +++----
 src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 50 ++++++++++++++-------------
 src/mesa/drivers/dri/i965/intel_mipmap_tree.h |  7 ++--
 4 files changed, 39 insertions(+), 39 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_blorp.c 
b/src/mesa/drivers/dri/i965/brw_blorp.c
index 4bc53b76b5..b722454703 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp.c
+++ b/src/mesa/drivers/dri/i965/brw_blorp.c
@@ -165,8 +165,13 @@ blorp_surf_for_miptree(struct brw_context *brw,
 
    surf->aux_usage = intel_miptree_get_aux_isl_usage(brw, mt);
 
-   struct isl_surf *aux_surf = &tmp_surfs[1];
-   intel_miptree_get_aux_isl_surf(brw, mt, surf->aux_usage, aux_surf);
+   struct isl_surf *aux_surf;
+   if (brw->gen == 6 && mt->hiz_buf) {
+      aux_surf = &mt->hiz_buf->aux_base.surf;
+   } else {
+      aux_surf = &tmp_surfs[1];
+      intel_miptree_get_aux_isl_surf(brw, mt, surf->aux_usage, aux_surf);
+   }
 
    if (wants_resolve) {
       bool supports_aux = surf->aux_usage != ISL_AUX_USAGE_NONE &&
diff --git a/src/mesa/drivers/dri/i965/gen6_depth_state.c 
b/src/mesa/drivers/dri/i965/gen6_depth_state.c
index 0d8785db65..0f5e4d3201 100644
--- a/src/mesa/drivers/dri/i965/gen6_depth_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_depth_state.c
@@ -165,18 +165,14 @@ gen6_emit_depth_stencil_hiz(struct brw_context *brw,
       /* Emit hiz buffer. */
       if (hiz) {
          assert(depth_mt);
-         struct intel_mipmap_tree *hiz_mt = depth_mt->hiz_buf->mt;
 
-         assert(hiz_mt->array_layout == GEN6_HIZ_STENCIL);
-
-         const uint32_t offset = intel_miptree_get_aligned_offset(
-                                    hiz_mt,
-                                    hiz_mt->level[lod].level_x,
-                                    hiz_mt->level[lod].level_y);
+         uint32_t offset;
+         isl_surf_get_image_offset_B_tile_sa(&depth_mt->hiz_buf->aux_base.surf,
+                                             lod, 0, 0, &offset, NULL, NULL);
 
         BEGIN_BATCH(3);
         OUT_BATCH((_3DSTATE_HIER_DEPTH_BUFFER << 16) | (3 - 2));
-        OUT_BATCH(depth_mt->hiz_buf->aux_base.pitch - 1);
+        OUT_BATCH(depth_mt->hiz_buf->aux_base.surf.row_pitch - 1);
         OUT_RELOC(depth_mt->hiz_buf->aux_base.bo,
                   I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
                   offset);
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c 
b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index d87dbfaacd..4dbf853eee 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -1058,10 +1058,7 @@ intel_miptree_hiz_buffer_free(struct 
intel_miptree_hiz_buffer *hiz_buf)
    if (hiz_buf == NULL)
       return;
 
-   if (hiz_buf->mt)
-      intel_miptree_release(&hiz_buf->mt);
-   else
-      brw_bo_unreference(hiz_buf->aux_base.bo);
+   brw_bo_unreference(hiz_buf->aux_base.bo);
 
    free(hiz_buf);
 }
@@ -2007,34 +2004,39 @@ intel_hiz_miptree_buf_create(struct brw_context *brw,
                              struct intel_mipmap_tree *mt)
 {
    struct intel_miptree_hiz_buffer *buf = calloc(sizeof(*buf), 1);
-   uint32_t layout_flags = MIPTREE_LAYOUT_ACCELERATED_UPLOAD;
+   if (!buf)
+      return NULL;
 
-   if (brw->gen == 6)
-      layout_flags |= MIPTREE_LAYOUT_GEN6_HIZ_STENCIL;
+   struct isl_surf_init_info init_info = {
+      .dim = get_isl_surf_dim(mt->target),
+      .format = ISL_FORMAT_HIZ,
+      .width = mt->logical_width0,
+      .height = mt->logical_height0,
+      .depth = mt->target == GL_TEXTURE_3D ? mt->logical_depth0 : 1,
+      .levels = mt->last_level - mt->first_level + 1,
+      .array_len = mt->target == GL_TEXTURE_3D ? 1 : mt->logical_depth0,
+      .samples = MAX2(mt->num_samples, 1),
+      .usage = ISL_SURF_USAGE_HIZ_BIT,
+      .tiling_flags = ISL_TILING_HIZ_BIT
+   };
 
-   if (!buf)
+   if (!isl_surf_init_s(&brw->isl_dev, &buf->aux_base.surf, &init_info)) {
+      free(buf);
       return NULL;
+   }
 
-   layout_flags |= MIPTREE_LAYOUT_TILING_ANY;
-   buf->mt = intel_miptree_create(brw,
-                                  mt->target,
-                                  mt->format,
-                                  mt->first_level,
-                                  mt->last_level,
-                                  mt->logical_width0,
-                                  mt->logical_height0,
-                                  mt->logical_depth0,
-                                  mt->num_samples,
-                                  layout_flags);
-   if (!buf->mt) {
+   struct isl_surf *surf = &buf->aux_base.surf;
+   unsigned pitch = surf->row_pitch;
+   buf->aux_base.bo = brw_bo_alloc_tiled(brw->bufmgr, "hiz", surf->row_pitch,
+                                         surf->size / surf->row_pitch, 1,
+                                         I915_TILING_Y, &pitch,
+                                         BO_ALLOC_FOR_RENDER);
+   if (!buf->aux_base.bo) {
       free(buf);
       return NULL;
    }
 
-   buf->aux_base.bo = buf->mt->bo;
-   buf->aux_base.size = buf->mt->total_height * buf->mt->pitch;
-   buf->aux_base.pitch = buf->mt->pitch;
-   buf->aux_base.qpitch = buf->mt->qpitch * 2;
+   assert(pitch == surf->row_pitch);
 
    return buf;
 }
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h 
b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
index 37d6bb3813..9f23088d7b 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
@@ -307,6 +307,8 @@ enum intel_aux_disable {
  */
 struct intel_miptree_aux_buffer
 {
+   struct isl_surf surf;
+
    /**
     * Buffer object containing the pixel data.
     *
@@ -360,11 +362,6 @@ struct intel_miptree_aux_buffer
 struct intel_miptree_hiz_buffer
 {
    struct intel_miptree_aux_buffer aux_base;
-
-   /**
-    * Hiz miptree. Used only by Gen6.
-    */
-   struct intel_mipmap_tree *mt;
 };
 
 struct intel_mipmap_tree
-- 
2.11.0

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