From: Tim Rowley <timothy.o.rowley@intel.com>
Date: Thu, 20 Jul 2017 14:47:11 +0000 (-0500)
Subject: swr/rast: cache line align hottile buffers
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2656a940c2d4c0e56cb84467a065b566cb93058c;p=mesa.git

swr/rast: cache line align hottile buffers

Prevents unalignment crashes with avx512 code on gcc/clang.

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
---

diff --git a/src/gallium/drivers/swr/rasterizer/core/tilemgr.cpp b/src/gallium/drivers/swr/rasterizer/core/tilemgr.cpp
index eb60eb40815..a6c54ab86e8 100644
--- a/src/gallium/drivers/swr/rasterizer/core/tilemgr.cpp
+++ b/src/gallium/drivers/swr/rasterizer/core/tilemgr.cpp
@@ -100,7 +100,7 @@ HOTTILE* HotTileMgr::GetHotTile(SWR_CONTEXT* pContext, DRAW_CONTEXT* pDC, uint32
         {
             uint32_t size = numSamples * mHotTileSize[attachment];
             uint32_t numaNode = ((x ^ y) & pContext->threadPool.numaMask);
-            hotTile.pBuffer = (uint8_t*)AllocHotTileMem(size, KNOB_SIMD_WIDTH * 4, numaNode);
+            hotTile.pBuffer = (uint8_t*)AllocHotTileMem(size, 64, numaNode);
             hotTile.state = HOTTILE_INVALID;
             hotTile.numSamples = numSamples;
             hotTile.renderTargetArrayIndex = renderTargetArrayIndex;
@@ -124,7 +124,7 @@ HOTTILE* HotTileMgr::GetHotTile(SWR_CONTEXT* pContext, DRAW_CONTEXT* pDC, uint32
 
             uint32_t size = numSamples * mHotTileSize[attachment];
             uint32_t numaNode = ((x ^ y) & pContext->threadPool.numaMask);
-            hotTile.pBuffer = (uint8_t*)AllocHotTileMem(size, KNOB_SIMD_WIDTH * 4, numaNode);
+            hotTile.pBuffer = (uint8_t*)AllocHotTileMem(size, 64, numaNode);
             hotTile.state = HOTTILE_INVALID;
             hotTile.numSamples = numSamples;
         }
@@ -194,7 +194,7 @@ HOTTILE* HotTileMgr::GetHotTileNoLoad(
         if (create)
         {
             uint32_t size = numSamples * mHotTileSize[attachment];
-            hotTile.pBuffer = (uint8_t*)AlignedMalloc(size, KNOB_SIMD_WIDTH * 4);
+            hotTile.pBuffer = (uint8_t*)AlignedMalloc(size, 64);
             hotTile.state = HOTTILE_INVALID;
             hotTile.numSamples = numSamples;
             hotTile.renderTargetArrayIndex = 0;