From: notaz <notasas@gmail.com>
Date: Thu, 14 Jul 2022 21:41:58 +0000 (+0300)
Subject: drc: simplify cache flush for some platforms
X-Git-Tag: r24~367
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=commitdiff_plain;h=af700b411e17806c3afb9e5f607317adc00dd546

drc: simplify cache flush for some platforms

untested, may break 3DS, if it happens please report
---

diff --git a/libpcsxcore/new_dynarec/new_dynarec.c b/libpcsxcore/new_dynarec/new_dynarec.c
index cabf4871..c9e16884 100644
--- a/libpcsxcore/new_dynarec/new_dynarec.c
+++ b/libpcsxcore/new_dynarec/new_dynarec.c
@@ -506,6 +506,28 @@ static void end_block(void *start)
   end_tcache_write(start, out);
 }
 
+#ifdef NDRC_CACHE_FLUSH_ALL
+
+static int needs_clear_cache;
+
+static void mark_clear_cache(void *target)
+{
+  if (!needs_clear_cache) {
+    start_tcache_write(ndrc, ndrc + 1);
+    needs_clear_cache = 1;
+  }
+}
+
+static void do_clear_cache(void)
+{
+  if (needs_clear_cache) {
+    end_tcache_write(ndrc, ndrc + 1);
+    needs_clear_cache = 0;
+  }
+}
+
+#else
+
 // also takes care of w^x mappings when patching code
 static u_int needs_clear_cache[1<<(TARGET_SIZE_2-17)];
 
@@ -549,7 +571,7 @@ static void do_clear_cache(void)
   }
 }
 
-//#define DEBUG_CYCLE_COUNT 1
+#endif // NDRC_CACHE_FLUSH_ALL
 
 #define NO_CYCLE_PENALTY_THR 12
 
diff --git a/libpcsxcore/new_dynarec/new_dynarec_config.h b/libpcsxcore/new_dynarec/new_dynarec_config.h
index 64c58492..5aee85df 100644
--- a/libpcsxcore/new_dynarec/new_dynarec_config.h
+++ b/libpcsxcore/new_dynarec/new_dynarec_config.h
@@ -15,3 +15,6 @@
 #if defined(HAVE_LIBNX)
 #define NDRC_WRITE_OFFSET 1
 #endif
+#if defined(HAVE_LIBNX) || defined(_3DS)
+#define NDRC_CACHE_FLUSH_ALL 1
+#endif