From 706ff60007c7e9f57e2361ff11bc565a37118466 Mon Sep 17 00:00:00 2001
From: foreman <dl.constructicon@amd.com>
Date: Thu, 18 Jun 2015 17:39:39 -0400
Subject: [PATCH] P4 to Git Change 1163090 by gandryey@gera-w8 on 2015/06/18
 17:29:32

	ECR #304775 - Mipmaps support
	- Fix the view creation for the host path transfers. GSL can ignore the original mipmap surface dimensions and apply the new settings

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuresource.cpp#220 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gslbe/src/rt/GSLDevice.cpp#123 edit
---
 rocclr/runtime/device/gpu/gpuresource.cpp     | 19 +++++++++++++++++--
 .../device/gpu/gslbe/src/rt/GSLDevice.cpp     |  3 +++
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/rocclr/runtime/device/gpu/gpuresource.cpp b/rocclr/runtime/device/gpu/gpuresource.cpp
index 0a197a615d..d7a26eb150 100644
--- a/rocclr/runtime/device/gpu/gpuresource.cpp
+++ b/rocclr/runtime/device/gpu/gpuresource.cpp
@@ -1661,6 +1661,13 @@ Resource::mapLayers(VirtualGPU* gpu, CALuint flags)
     }
 
     dstOffs = startLayer_ * cal()->slice_ * elementSize();
+    uint32_t viewFlags = CAL_RESALLOCSLICEVIEW_LEVEL_AND_LAYER;
+    if ((cal()->type_ == ImageView) && viewOwner_->mipMapped() &&
+        (cal()->dimension_ == GSL_MOA_TEXTURE_2D)) {
+        // GSL ignores the base surface dimensions if extra flags
+        // are specified
+        viewFlags = 0;
+    }
 
     // Loop through all layers
     for (uint i = startLayer_; i < layers; ++i) {
@@ -1681,7 +1688,7 @@ Resource::mapLayers(VirtualGPU* gpu, CALuint flags)
         sliceResource = dev().resAllocView(
             gslResource(), gslSize,
             calOffset, cal()->format_, cal()->channelOrder_, gslDim,
-            0, i, CAL_RESALLOCSLICEVIEW_LEVEL_AND_LAYER);
+            0, i, viewFlags);
         if (0 == sliceResource) {
             LogError("Map layer. resAllocSliceView failed!");
             return NULL;
@@ -1771,6 +1778,14 @@ Resource::unmapLayers(VirtualGPU* gpu)
 
     srcOffs = startLayer_ * cal()->slice_ * elementSize();
 
+    uint32_t viewFlags = CAL_RESALLOCSLICEVIEW_LEVEL_AND_LAYER;
+    if ((cal()->type_ == ImageView) && viewOwner_->mipMapped() &&
+        (cal()->dimension_ == GSL_MOA_TEXTURE_2D)) {
+        // GSL ignores the base surface dimensions if extra flags
+        // are specified
+        viewFlags = 0;
+    }
+
     // Check if map is write only
     if (!(mapFlags_ == GSL_MAP_READ_ONLY)) {
         // Loop through all layers
@@ -1792,7 +1807,7 @@ Resource::unmapLayers(VirtualGPU* gpu)
             sliceResource = dev().resAllocView(
                 gslResource(), gslSize,
                 calOffset, cal()->format_, cal()->channelOrder_, gslDim,
-                0, i, CAL_RESALLOCSLICEVIEW_LEVEL_AND_LAYER);
+                0, i, viewFlags);
             if (0 == sliceResource) {
                 LogError("Unmap layer. resAllocSliceView failed!");
                 return;
diff --git a/rocclr/runtime/device/gpu/gslbe/src/rt/GSLDevice.cpp b/rocclr/runtime/device/gpu/gslbe/src/rt/GSLDevice.cpp
index 5f12542de2..581b0cb3e8 100644
--- a/rocclr/runtime/device/gpu/gslbe/src/rt/GSLDevice.cpp
+++ b/rocclr/runtime/device/gpu/gslbe/src/rt/GSLDevice.cpp
@@ -932,6 +932,9 @@ CALGSLDevice::resAllocView(gslMemObject res, gslResource3D size, CALdomain offse
         levelobject = m_cs->createSubMemObject(res, GSL_LEVEL, levelParam);
         attribs.bytePitch = static_cast<size_t>(levelobject->getPitch()) *
             (levelobject->getBitsPerElement() / 8);
+        // GSL doesn't detect that the base surface is mipmaped
+        // and doesn't apply the height alignment
+        size.height = levelobject->getHeight();
     }
     if (flags & CAL_RESALLOCSLICEVIEW_LAYER)
     {