X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=libpcsxcore%2Fpsxmem.c;h=14fd9113cbecde5068f3427a0535063871569e66;hb=HEAD;hp=b08d113dd27c6b2794772b149e2cb6b715bd2698;hpb=3e31e934ebbfa48941cdcc66e316ff743a4c908d;p=pcsx_rearmed.git

diff --git a/libpcsxcore/psxmem.c b/libpcsxcore/psxmem.c
index b08d113d..4e03b24b 100644
--- a/libpcsxcore/psxmem.c
+++ b/libpcsxcore/psxmem.c
@@ -24,14 +24,108 @@
 // TODO: Implement caches & cycle penalty.
 
 #include "psxmem.h"
+#include "psxmem_map.h"
 #include "r3000a.h"
 #include "psxhw.h"
-#include <sys/mman.h>
+//#include "debug.h"
+#define DebugCheckBP(...)
+
+#include "lightrec/mem.h"
+#include "memmap.h"
+
+#ifdef USE_LIBRETRO_VFS
+#include <streams/file_stream_transforms.h>
+#endif
 
 #ifndef MAP_ANONYMOUS
 #define MAP_ANONYMOUS MAP_ANON
 #endif
 
+static void * psxMapDefault(unsigned long addr, size_t size,
+			    int is_fixed, enum psxMapTag tag)
+{
+	void *ptr;
+#if !P_HAVE_MMAP
+	ptr = calloc(1, size);
+	return ptr ? ptr : MAP_FAILED;
+#else
+	int flags = MAP_PRIVATE | MAP_ANONYMOUS;
+
+	ptr = mmap((void *)(uintptr_t)addr, size,
+		    PROT_READ | PROT_WRITE, flags, -1, 0);
+#ifdef MADV_HUGEPAGE
+	if (size >= 2*1024*1024) {
+		if (ptr != MAP_FAILED && ((uintptr_t)ptr & (2*1024*1024 - 1))) {
+			// try to manually realign assuming bottom-to-top alloc
+			munmap(ptr, size);
+			addr = (uintptr_t)ptr & ~(2*1024*1024 - 1);
+			ptr = mmap((void *)(uintptr_t)addr, size,
+				PROT_READ | PROT_WRITE, flags, -1, 0);
+		}
+		if (ptr != MAP_FAILED)
+			madvise(ptr, size, MADV_HUGEPAGE);
+	}
+#endif
+	return ptr;
+#endif
+}
+
+static void psxUnmapDefault(void *ptr, size_t size, enum psxMapTag tag)
+{
+#if !P_HAVE_MMAP
+	free(ptr);
+#else
+	munmap(ptr, size);
+#endif
+}
+
+void *(*psxMapHook)(unsigned long addr, size_t size, int is_fixed,
+		enum psxMapTag tag) = psxMapDefault;
+void (*psxUnmapHook)(void *ptr, size_t size,
+		     enum psxMapTag tag) = psxUnmapDefault;
+
+void *psxMap(unsigned long addr, size_t size, int is_fixed,
+		enum psxMapTag tag)
+{
+	int try_ = 0;
+	unsigned long mask;
+	void *ret;
+
+retry:
+	ret = psxMapHook(addr, size, 0, tag);
+	if (ret == NULL)
+		return MAP_FAILED;
+
+	if (addr != 0 && ret != (void *)(uintptr_t)addr) {
+		SysMessage("psxMap: warning: wanted to map @%08x, got %p\n",
+			addr, ret);
+
+		if (is_fixed) {
+			psxUnmap(ret, size, tag);
+			return MAP_FAILED;
+		}
+
+		if (((addr ^ (unsigned long)(uintptr_t)ret) & ~0xff000000l) && try_ < 2)
+		{
+			psxUnmap(ret, size, tag);
+
+			// try to use similarly aligned memory instead
+			// (recompiler needs this)
+			mask = try_ ? 0xffff : 0xffffff;
+			addr = ((uintptr_t)ret + mask) & ~mask;
+			try_++;
+			goto retry;
+		}
+	}
+
+	return ret;
+}
+
+void psxUnmap(void *ptr, size_t size, enum psxMapTag tag)
+{
+	psxUnmapHook(ptr, size, tag);
+}
+
 s8 *psxM = NULL; // Kernel & User Memory (2 Meg)
 s8 *psxP = NULL; // Parallel Port (64K)
 s8 *psxR = NULL; // BIOS ROM (512K)
@@ -59,30 +153,74 @@ u8 **psxMemRLUT = NULL;
 0xbfc0_0000-0xbfc7_ffff		BIOS Mirror (512K) Uncached
 */
 
-int psxMemInit() {
-	int i;
+static int psxMemInitMap(void)
+{
+	psxM = psxMap(0x80000000, 0x00210000, 1, MAP_TAG_RAM);
+	if (psxM == MAP_FAILED)
+		psxM = psxMap(0x77000000, 0x00210000, 0, MAP_TAG_RAM);
+	if (psxM == MAP_FAILED) {
+		SysMessage(_("mapping main RAM failed"));
+		psxM = NULL;
+		return -1;
+	}
+	psxP = &psxM[0x200000];
+
+	psxH = psxMap(0x1f800000, 0x10000, 0, MAP_TAG_OTHER);
+	if (psxH == MAP_FAILED) {
+		SysMessage(_("Error allocating memory!"));
+		psxMemShutdown();
+		return -1;
+	}
 
-	psxMemRLUT = (u8 **)malloc(0x10000 * sizeof(void *));
-	psxMemWLUT = (u8 **)malloc(0x10000 * sizeof(void *));
-	memset(psxMemRLUT, 0, 0x10000 * sizeof(void *));
-	memset(psxMemWLUT, 0, 0x10000 * sizeof(void *));
+	psxR = psxMap(0x1fc00000, 0x80000, 0, MAP_TAG_OTHER);
+	if (psxR == MAP_FAILED) {
+		SysMessage(_("Error allocating memory!"));
+		psxMemShutdown();
+		return -1;
+	}
+
+	return 0;
+}
+
+static void psxMemFreeMap(void)
+{
+	if (psxM) psxUnmap(psxM, 0x00210000, MAP_TAG_RAM);
+	if (psxH) psxUnmap(psxH, 0x10000, MAP_TAG_OTHER);
+	if (psxR) psxUnmap(psxR, 0x80000, MAP_TAG_OTHER);
+	psxM = psxH = psxR = NULL;
+	psxP = NULL;
+}
 
-	psxM = mmap((void *)0x80000000, 0x00220000,
-		PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+int psxMemInit(void)
+{
+	unsigned int i;
+	int ret;
 
-	psxP = &psxM[0x200000];
-	psxH = &psxM[0x210000];
+	if (LIGHTREC_CUSTOM_MAP)
+		ret = lightrec_init_mmap();
+	else
+		ret = psxMemInitMap();
+	if (ret) {
+		SysMessage(_("Error allocating memory!"));
+		psxMemShutdown();
+		return -1;
+	}
+
+	if (DISABLE_MEM_LUTS)
+		return 0;
 
-	psxR = mmap((void *)0x9fc00000, 0x80000,
-		PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	psxMemRLUT = (u8 **)malloc(0x10000 * sizeof(void *));
+	psxMemWLUT = (u8 **)malloc(0x10000 * sizeof(void *));
 
-	if (psxMemRLUT == NULL || psxMemWLUT == NULL || 
-		psxM != (void *)0x80000000 || psxR != (void *)0x9fc00000 ||
-		psxP == NULL || psxH == NULL) {
+	if (psxMemRLUT == NULL || psxMemWLUT == NULL) {
 		SysMessage(_("Error allocating memory!"));
+		psxMemShutdown();
 		return -1;
 	}
 
+	memset(psxMemRLUT, (int)(uintptr_t)INVALID_PTR, 0x10000 * sizeof(void *));
+	memset(psxMemWLUT, (int)(uintptr_t)INVALID_PTR, 0x10000 * sizeof(void *));
+
 // MemR
 	for (i = 0; i < 0x80; i++) psxMemRLUT[i + 0x0000] = (u8 *)&psxM[(i & 0x1f) << 16];
 
@@ -103,7 +241,11 @@ int psxMemInit() {
 	memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
 	memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
 
-	psxMemWLUT[0x1f00] = (u8 *)psxP;
+	// Don't allow writes to PIO Expansion region (psxP) to take effect.
+	// NOTE: Not sure if this is needed to fix any games but seems wise,
+	//       seeing as some games do read from PIO as part of copy-protection
+	//       check. (See fix in psxMemReset() regarding psxP region reads).
+	psxMemWLUT[0x1f00] = INVALID_PTR;
 	psxMemWLUT[0x1f80] = (u8 *)psxH;
 
 	return 0;
@@ -114,7 +256,9 @@ void psxMemReset() {
 	char bios[1024];
 
 	memset(psxM, 0, 0x00200000);
-	memset(psxP, 0, 0x00010000);
+	memset(psxP, 0xff, 0x00010000);
+
+	Config.HLE = TRUE;
 
 	if (strcmp(Config.Bios, "HLE") != 0) {
 		sprintf(bios, "%s/%s", Config.BiosDir, Config.Bios);
@@ -123,46 +267,71 @@ void psxMemReset() {
 		if (f == NULL) {
 			SysMessage(_("Could not open BIOS:\"%s\". Enabling HLE Bios!\n"), bios);
 			memset(psxR, 0, 0x80000);
-			Config.HLE = TRUE;
 		} else {
-			fread(psxR, 1, 0x80000, f);
+			if (fread(psxR, 1, 0x80000, f) == 0x80000) {
+				Config.HLE = FALSE;
+			} else {
+				SysMessage(_("The selected BIOS:\"%s\" is of wrong size. Enabling HLE Bios!\n"), bios);
+			}
 			fclose(f);
-			Config.HLE = FALSE;
 		}
-	} else Config.HLE = TRUE;
+	}
 }
 
 void psxMemShutdown() {
-	munmap(psxM, 0x00220000);
-	munmap(psxR, 0x80000);
+	if (LIGHTREC_CUSTOM_MAP)
+		lightrec_free_mmap();
+	else
+		psxMemFreeMap();
 
-	free(psxMemRLUT);
-	free(psxMemWLUT);
+	free(psxMemRLUT); psxMemRLUT = NULL;
+	free(psxMemWLUT); psxMemWLUT = NULL;
 }
 
-static int writeok = 1;
+int cache_isolated;
+
+void psxMemOnIsolate(int enable)
+{
+	if (!DISABLE_MEM_LUTS) {
+		if (enable) {
+			memset(psxMemWLUT + 0x0000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
+			memset(psxMemWLUT + 0x8000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
+			//memset(psxMemWLUT + 0xa000, (int)(uintptr_t)INVALID_PTR, 0x80 * sizeof(void *));
+		} else {
+			int i;
+			for (i = 0; i < 0x80; i++)
+				psxMemWLUT[i + 0x0000] = (void *)&psxM[(i & 0x1f) << 16];
+			memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
+			memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
+		}
+	}
+
+	cache_isolated = enable;
+	psxCpu->Notify(enable ? R3000ACPU_NOTIFY_CACHE_ISOLATED
+			: R3000ACPU_NOTIFY_CACHE_UNISOLATED, NULL);
+}
 
 u8 psxMemRead8(u32 mem) {
 	char *p;
 	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);
 	} else {
-		p = (char *)(psxMemRLUT[t]);
-		if (p != NULL) {
+		p = psxm(mem, 0);
+		if (p != INVALID_PTR) {
 			if (Config.Debug)
 				DebugCheckBP((mem & 0xffffff) | 0x80000000, R1);
-			return *(u8 *)(p + (mem & 0xffff));
+			return *(u8 *)p;
 		} else {
 #ifdef PSXMEM_LOG
 			PSXMEM_LOG("err lb %8.8lx\n", mem);
 #endif
-			return 0;
+			return 0xFF;
 		}
 	}
 }
@@ -172,22 +341,22 @@ 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);
 	} else {
-		p = (char *)(psxMemRLUT[t]);
-		if (p != NULL) {
+		p = psxm(mem, 0);
+		if (p != INVALID_PTR) {
 			if (Config.Debug)
 				DebugCheckBP((mem & 0xffffff) | 0x80000000, R2);
-			return SWAPu16(*(u16 *)(p + (mem & 0xffff)));
+			return SWAPu16(*(u16 *)p);
 		} else {
 #ifdef PSXMEM_LOG
 			PSXMEM_LOG("err lh %8.8lx\n", mem);
 #endif
-			return 0;
+			return 0xFFFF;
 		}
 	}
 }
@@ -197,43 +366,45 @@ 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);
 	} else {
-		p = (char *)(psxMemRLUT[t]);
-		if (p != NULL) {
+		p = psxm(mem, 0);
+		if (p != INVALID_PTR) {
 			if (Config.Debug)
 				DebugCheckBP((mem & 0xffffff) | 0x80000000, R4);
-			return SWAPu32(*(u32 *)(p + (mem & 0xffff)));
+			return SWAPu32(*(u32 *)p);
 		} else {
+			if (mem == 0xfffe0130)
+				return psxRegs.biuReg;
 #ifdef PSXMEM_LOG
-			if (writeok) { PSXMEM_LOG("err lw %8.8lx\n", mem); }
+			PSXMEM_LOG("err lw %8.8lx\n", mem);
 #endif
-			return 0;
+			return 0xFFFFFFFF;
 		}
 	}
 }
 
-void psxMemWrite8(u32 mem, u8 value) {
+void psxMemWrite8(u32 mem, u32 value) {
 	char *p;
 	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);
 	} else {
-		p = (char *)(psxMemWLUT[t]);
-		if (p != NULL) {
+		p = psxm(mem, 1);
+		if (p != INVALID_PTR) {
 			if (Config.Debug)
 				DebugCheckBP((mem & 0xffffff) | 0x80000000, W1);
-			*(u8 *)(p + (mem & 0xffff)) = value;
-#ifdef PSXREC
+			*(u8 *)p = value;
+#ifndef DRC_DISABLE
 			psxCpu->Clear((mem & (~3)), 1);
 #endif
 		} else {
@@ -244,23 +415,23 @@ void psxMemWrite8(u32 mem, u8 value) {
 	}
 }
 
-void psxMemWrite16(u32 mem, u16 value) {
+void psxMemWrite16(u32 mem, u32 value) {
 	char *p;
 	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);
 	} else {
-		p = (char *)(psxMemWLUT[t]);
-		if (p != NULL) {
+		p = psxm(mem, 1);
+		if (p != INVALID_PTR) {
 			if (Config.Debug)
 				DebugCheckBP((mem & 0xffffff) | 0x80000000, W2);
-			*(u16 *)(p + (mem & 0xffff)) = SWAPu16(value);
-#ifdef PSXREC
+			*(u16 *)p = SWAPu16(value);
+#ifndef DRC_DISABLE
 			psxCpu->Clear((mem & (~3)), 1);
 #endif
 		} else {
@@ -277,55 +448,28 @@ 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);
 	} else {
-		p = (char *)(psxMemWLUT[t]);
-		if (p != NULL) {
+		p = psxm(mem, 1);
+		if (p != INVALID_PTR) {
 			if (Config.Debug)
 				DebugCheckBP((mem & 0xffffff) | 0x80000000, W4);
-			*(u32 *)(p + (mem & 0xffff)) = SWAPu32(value);
-#ifdef PSXREC
+			*(u32 *)p = SWAPu32(value);
+#ifndef DRC_DISABLE
 			psxCpu->Clear(mem, 1);
 #endif
 		} else {
-			if (mem != 0xfffe0130) {
-#ifdef PSXREC
-				if (!writeok)
-					psxCpu->Clear(mem, 1);
-#endif
-
-#ifdef PSXMEM_LOG
-				if (writeok) { PSXMEM_LOG("err sw %8.8lx\n", mem); }
-#endif
-			} else {
-				int i;
-
-				switch (value) {
-					case 0x800: case 0x804:
-						if (writeok == 0) break;
-						writeok = 0;
-						memset(psxMemWLUT + 0x0000, 0, 0x80 * sizeof(void *));
-						memset(psxMemWLUT + 0x8000, 0, 0x80 * sizeof(void *));
-						memset(psxMemWLUT + 0xa000, 0, 0x80 * sizeof(void *));
-						break;
-					case 0x00: case 0x1e988:
-						if (writeok == 1) break;
-						writeok = 1;
-						for (i = 0; i < 0x80; i++) psxMemWLUT[i + 0x0000] = (void *)&psxM[(i & 0x1f) << 16];
-						memcpy(psxMemWLUT + 0x8000, psxMemWLUT, 0x80 * sizeof(void *));
-						memcpy(psxMemWLUT + 0xa000, psxMemWLUT, 0x80 * sizeof(void *));
-						break;
-					default:
+			if (mem == 0xfffe0130) {
+				psxRegs.biuReg = value;
+				return;
+			}
 #ifdef PSXMEM_LOG
-						PSXMEM_LOG("unk %8.8lx = %x\n", mem, value);
+			PSXMEM_LOG("err sw %8.8lx\n", mem);
 #endif
-						break;
-				}
-			}
 		}
 	}
 }
@@ -335,15 +479,15 @@ 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;
 	} else {
-		p = (char *)(psxMemWLUT[t]);
-		if (p != NULL) {
-			return (void *)(p + (mem & 0xffff));
+		p = psxm(mem, 1);
+		if (p != INVALID_PTR) {
+			return (void *)p;
 		}
 		return NULL;
 	}