X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=blobdiff_plain;f=libpcsxcore%2Fpsxmem.c;h=7001744b54d9069eef194207f923d9ce7df0a3bc;hp=f12a981aedf8a9f300023245bc1d6284a6373260;hb=650adfd2da779ba8855623362c2900583e22931e;hpb=30773ad710989fd84254978e19af5ea92768e3ea

diff --git a/libpcsxcore/psxmem.c b/libpcsxcore/psxmem.c
index f12a981a..7001744b 100644
--- a/libpcsxcore/psxmem.c
+++ b/libpcsxcore/psxmem.c
@@ -52,8 +52,9 @@ retry:
 		goto out;
 	}
 
-	if (is_fixed)
-		flags |= MAP_FIXED;
+	/* avoid MAP_FIXED, it overrides existing mappings.. */
+	/* if (is_fixed)
+		flags |= MAP_FIXED; */
 
 	req = (void *)addr;
 	ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0);
@@ -65,6 +66,11 @@ out:
 		SysMessage("psxMap: warning: wanted to map @%08x, got %p\n",
 			addr, ret);
 
+		if (is_fixed) {
+			psxUnmap(ret, size, tag);
+			return NULL;
+		}
+
 		if (ret != NULL && ((addr ^ (long)ret) & 0x00ffffff)
 		    && !tried_to_align)
 		{
@@ -89,7 +95,8 @@ void psxUnmap(void *ptr, size_t size, enum psxMapTag tag)
 		return;
 	}
 
-	munmap(ptr, size);
+	if (ptr)
+		munmap(ptr, size);
 }
 
 s8 *psxM = NULL; // Kernel & User Memory (2 Meg)
@@ -129,8 +136,13 @@ int psxMemInit() {
 
 	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
 #ifndef RAM_FIXED
+#ifdef __BLACKBERRY_QNX__
+	if (psxM == NULL)
+		psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
+#else
 	if (psxM == NULL)
 		psxM = psxMap(0x78000000, 0x00210000, 0, MAP_TAG_RAM);
+#endif
 #endif
 	if (psxM == NULL) {
 		SysMessage(_("mapping main RAM failed"));
@@ -138,12 +150,13 @@ int psxMemInit() {
 	}
 
 	psxP = &psxM[0x200000];
-	psxH = psxMap(0x1f800000, 0x10000, 1, MAP_TAG_OTHER);
+	psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
 	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
 
 	if (psxMemRLUT == NULL || psxMemWLUT == NULL || 
-		psxR == NULL || psxP == NULL || psxH != (void *)0x1f800000) {
+	    psxR == NULL || psxP == NULL || psxH == NULL) {
 		SysMessage(_("Error allocating memory!"));
+		psxMemShutdown();
 		return -1;
 	}
 
@@ -197,12 +210,12 @@ void psxMemReset() {
 }
 
 void psxMemShutdown() {
-	psxUnmap(psxM, 0x00210000, MAP_TAG_RAM);
-	psxUnmap(psxH, 0x10000, MAP_TAG_OTHER);
-	psxUnmap(psxR, 0x80000, MAP_TAG_OTHER);
+	psxUnmap(psxM, 0x00210000, MAP_TAG_RAM); psxM = NULL;
+	psxUnmap(psxH, 0x10000, MAP_TAG_OTHER); psxH = NULL;
+	psxUnmap(psxR, 0x80000, MAP_TAG_OTHER); psxR = NULL;
 
-	free(psxMemRLUT);
-	free(psxMemWLUT);
+	free(psxMemRLUT); psxMemRLUT = NULL;
+	free(psxMemWLUT); psxMemWLUT = NULL;
 }
 
 static int writeok = 1;