From 8c81c1d04e8d20b08f122a12ce090b4f926adb4c Mon Sep 17 00:00:00 2001
From: Mahmoud <abdallm@purdue.edu>
Date: Wed, 22 Aug 2018 10:19:52 -0400
Subject: adding lazy-fetch-on-read and invalidate operation to cache

---
 src/gpgpu-sim/shader.cc | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'src/gpgpu-sim/shader.cc')

diff --git a/src/gpgpu-sim/shader.cc b/src/gpgpu-sim/shader.cc
index d2f40a1..b660b8c 100644
--- a/src/gpgpu-sim/shader.cc
+++ b/src/gpgpu-sim/shader.cc
@@ -1593,6 +1593,11 @@ void ldst_unit::flush(){
 	m_L1D->flush();
 }
 
+void ldst_unit::invalidate(){
+	// Flush L1D cache
+	m_L1D->invalidate();
+}
+
 simd_function_unit::simd_function_unit( const shader_core_config *config )
 { 
     m_config=config;
@@ -2644,6 +2649,11 @@ void shader_core_ctx::cache_flush()
    m_ldst_unit->flush();
 }
 
+void shader_core_ctx::cache_invalidate()
+{
+   m_ldst_unit->invalidate();
+}
+
 // modifiers
 std::list<opndcoll_rfu_t::op_t> opndcoll_rfu_t::arbiter_t::allocate_reads() 
 {
@@ -3461,6 +3471,12 @@ void simt_core_cluster::cache_flush()
         m_core[i]->cache_flush();
 }
 
+void simt_core_cluster::cache_invalidate()
+{
+    for( unsigned i=0; i < m_config->n_simt_cores_per_cluster; i++ )
+        m_core[i]->cache_invalidate();
+}
+
 bool simt_core_cluster::icnt_injection_buffer_full(unsigned size, bool write)
 {
     unsigned request_size = size;
-- 
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