From e8ded1637454bdcdad81627912bccebd98863711 Mon Sep 17 00:00:00 2001
From: Naomi Luis <nluis@quicinc.com>
Date: Thu, 28 Jul 2011 11:48:38 -0700
Subject: [PATCH] libgralloc-qsd8k: Invalidate the ashmem cache

Invalidate the ashmem cache after allocating an ashmem buffer

Change-Id: Id38a4776a80a9b1d8be7fe6bf00f8b187a3278f6
---
 libgralloc-qsd8k/gpu.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libgralloc-qsd8k/gpu.cpp b/libgralloc-qsd8k/gpu.cpp
index cca91b1..dd410b2 100755
--- a/libgralloc-qsd8k/gpu.cpp
+++ b/libgralloc-qsd8k/gpu.cpp
@@ -21,6 +21,9 @@
 #include <sys/mman.h>
 
 #include <cutils/properties.h>
+#ifdef HOST
+#include <linux/ashmem.h>
+#endif
 
 #include "gr.h"
 #include "gpu.h"
@@ -178,6 +181,11 @@ int gpu_context_t::alloc_ashmem_buffer(size_t size, unsigned int postfix, void**
         *pFd = fd;
         *pBase = base;
         *pOffset = offset;
+#ifdef HOST
+        if (ioctl(fd, ASHMEM_CACHE_INV_RANGE, NULL)) {
+            LOGE("ASHMEM_CACHE_INV_RANGE failed fd = %d", fd);
+        }
+#endif
     }
     return err;
 }