Merge pull request #386 from ZachCook/master

[pcsx_rearmed.git] / libpcsxcore / psxmem.c

diff --git a/libpcsxcore/psxmem.c b/libpcsxcore/psxmem.c
index 9e44267..11a01ad 100644 (file)
--- a/libpcsxcore/psxmem.c
+++ b/libpcsxcore/psxmem.c
@@ -28,7 +28,8 @@
 #include "r3000a.h"
 #include "psxhw.h"
 #include "debug.h"
-#include <sys/mman.h>
+
+#include "memmap.h"
 
 #ifndef MAP_ANONYMOUS
 #define MAP_ANONYMOUS MAP_ANON
@@ -41,40 +42,55 @@ void (*psxUnmapHook)(void *ptr, size_t size, enum psxMapTag tag);
 void *psxMap(unsigned long addr, size_t size, int is_fixed,
                enum psxMapTag tag)
 {
+#ifdef LIGHTREC
+#ifdef MAP_FIXED_NOREPLACE
+       int flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE;
+#else
+       int flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED;
+#endif
+#else
        int flags = MAP_PRIVATE | MAP_ANONYMOUS;
-       int tried_to_align = 0;
+#endif
+
+       int try_ = 0;
        unsigned long mask;
        void *req, *ret;
 
 retry:
        if (psxMapHook != NULL) {
-               ret = psxMapHook(addr, size, is_fixed, tag);
-               goto out;
+               ret = psxMapHook(addr, size, 0, tag);
+               if (ret == NULL)
+                       return NULL;
+       }
+       else {
+               /* 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);
+               if (ret == MAP_FAILED)
+                       return NULL;
        }
 
-       if (is_fixed)
-               flags |= MAP_FIXED;
-
-       req = (void *)addr;
-       ret = mmap(req, size, PROT_READ | PROT_WRITE, flags, -1, 0);
-       if (ret == MAP_FAILED)
-               return NULL;
-
-out:
        if (addr != 0 && ret != (void *)addr) {
                SysMessage("psxMap: warning: wanted to map @%08x, got %p\n",
                        addr, ret);
 
-               if (ret != NULL && ((addr ^ (long)ret) & 0x00ffffff)
-                   && !tried_to_align)
+               if (is_fixed) {
+                       psxUnmap(ret, size, tag);
+                       return NULL;
+               }
+
+               if (((addr ^ (unsigned long)ret) & ~0xff000000l) && try_ < 2)
                {
                        psxUnmap(ret, size, tag);
 
                        // try to use similarly aligned memory instead
                        // (recompiler needs this)
-                       mask = (addr - 1) & ~addr & 0x07ffffff;
-                       addr = (unsigned long)(ret + mask) & ~mask;
-                       tried_to_align = 1;
+                       mask = try_ ? 0xffff : 0xffffff;
+                       addr = ((unsigned long)ret + mask) & ~mask;
+                       try_++;
                        goto retry;
                }
        }
@@ -89,7 +105,8 @@ 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)
@@ -127,10 +144,17 @@ int psxMemInit() {
        memset(psxMemRLUT, 0, 0x10000 * sizeof(void *));
        memset(psxMemWLUT, 0, 0x10000 * sizeof(void *));
 
+#ifdef LIGHTREC
+       psxM = psxMap(0x30000000, 0x00210000, 1, MAP_TAG_RAM);
+       if (psxM == NULL)
+               psxM = psxMap(0x70000000, 0x00210000, 1, MAP_TAG_RAM);
+
+#else
        psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
+#endif
 #ifndef RAM_FIXED
        if (psxM == NULL)
-               psxM = psxMap(0x78000000, 0x00210000, 0, MAP_TAG_RAM);
+               psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
 #endif
        if (psxM == NULL) {
                SysMessage(_("mapping main RAM failed"));
@@ -138,12 +162,23 @@ int psxMemInit() {
        }
 
        psxP = &psxM[0x200000];
-       psxH = psxMap(0x1f800000, 0x10000, 1, MAP_TAG_OTHER);
+#ifdef LIGHTREC
+       psxH = psxMap(0x4f800000, 0x10000, 0, MAP_TAG_OTHER);
+       if (psxH == NULL)
+               psxH = psxMap(0x8f800000, 0x10000, 0, MAP_TAG_OTHER);
+
+       psxR = psxMap(0x4fc00000, 0x80000, 0, MAP_TAG_OTHER);
+       if (psxR == NULL)
+               psxR = psxMap(0x8fc00000, 0x80000, 0, MAP_TAG_OTHER);
+#else
+       psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
        psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
+#endif
 
        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;
        }
 
@@ -178,7 +213,7 @@ void psxMemReset() {
        char bios[1024];
 
        memset(psxM, 0, 0x00200000);
-       memset(psxP, 0, 0x00010000);
+       memset(psxP, 0xff, 0x00010000);
 
        if (strcmp(Config.Bios, "HLE") != 0) {
                sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios);
@@ -197,12 +232,12 @@ void psxMemReset() {
 }
 
 void psxMemShutdown() {
-       psxUnmap(psxM, 0x00210000, MAP_TAG_RAM);
-       psxUnmap(psxH, 0x1f800000, 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;
@@ -212,8 +247,8 @@ u8 psxMemRead8(u32 mem) {
        u32 t;
 
        t = mem >> 16;
-       if (t == 0x1f80) {
-               if (mem < 0x1f801000)
+       if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
+               if ((mem & 0xffff) < 0x400)
                        return psxHu8(mem);
                else
                        return psxHwRead8(mem);
@@ -237,8 +272,8 @@ u16 psxMemRead16(u32 mem) {
        u32 t;
 
        t = mem >> 16;
-       if (t == 0x1f80) {
-               if (mem < 0x1f801000)
+       if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
+               if ((mem & 0xffff) < 0x400)
                        return psxHu16(mem);
                else
                        return psxHwRead16(mem);
@@ -262,8 +297,8 @@ u32 psxMemRead32(u32 mem) {
        u32 t;
 
        t = mem >> 16;
-       if (t == 0x1f80) {
-               if (mem < 0x1f801000)
+       if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
+               if ((mem & 0xffff) < 0x400)
                        return psxHu32(mem);
                else
                        return psxHwRead32(mem);
@@ -287,8 +322,8 @@ void psxMemWrite8(u32 mem, u8 value) {
        u32 t;
 
        t = mem >> 16;
-       if (t == 0x1f80) {
-               if (mem < 0x1f801000)
+       if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
+               if ((mem & 0xffff) < 0x400)
                        psxHu8(mem) = value;
                else
                        psxHwWrite8(mem, value);
@@ -314,8 +349,8 @@ void psxMemWrite16(u32 mem, u16 value) {
        u32 t;
 
        t = mem >> 16;
-       if (t == 0x1f80) {
-               if (mem < 0x1f801000)
+       if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
+               if ((mem & 0xffff) < 0x400)
                        psxHu16ref(mem) = SWAPu16(value);
                else
                        psxHwWrite16(mem, value);
@@ -342,8 +377,8 @@ void psxMemWrite32(u32 mem, u32 value) {
 
 //     if ((mem&0x1fffff) == 0x71E18 || value == 0x48088800) SysPrintf("t2fix!!\n");
        t = mem >> 16;
-       if (t == 0x1f80) {
-               if (mem < 0x1f801000)
+       if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
+               if ((mem & 0xffff) < 0x400)
                        psxHu32ref(mem) = SWAPu32(value);
                else
                        psxHwWrite32(mem, value);
@@ -400,8 +435,8 @@ void *psxMemPointer(u32 mem) {
        u32 t;
 
        t = mem >> 16;
-       if (t == 0x1f80) {
-               if (mem < 0x1f801000)
+       if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
+               if ((mem & 0xffff) < 0x400)
                        return (void *)&psxH[mem];
                else
                        return NULL;