From 5b9f1b9e4aa51af5712cf1d90552ace57d9f486b Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Fri, 3 Aug 2012 00:43:56 +0300
Subject: [PATCH] frontend/pollux: wiz: move tables to upper memory to free
 some RAM

---
 Makefile                          |  1 +
 frontend/pl_gun_ts.h              |  1 +
 frontend/plat_pollux.c            | 16 ++++++++++++++++
 libpcsxcore/new_dynarec/pcsxmem.c |  6 ++++++
 4 files changed, 24 insertions(+)

diff --git a/Makefile b/Makefile
index b5442506..61bec8b2 100644
--- a/Makefile
+++ b/Makefile
@@ -145,6 +145,7 @@ endif
 ifeq "$(PLATFORM)" "caanoo"
 OBJS += frontend/plat_pollux.o frontend/in_tsbutton.o frontend/blit320.o
 OBJS += frontend/gp2x/in_gp2x.o frontend/warm/warm.o
+libpcsxcore/new_dynarec/pcsxmem.o: CFLAGS += -DCUSTOM_MEMMAPS
 USE_FRONTEND = 1
 endif
 ifeq "$(PLATFORM)" "maemo"
diff --git a/frontend/pl_gun_ts.h b/frontend/pl_gun_ts.h
index 4e15f005..4e3d195f 100644
--- a/frontend/pl_gun_ts.h
+++ b/frontend/pl_gun_ts.h
@@ -13,5 +13,6 @@ int pl_gun_ts_get_fd(struct tsdev *ts);
 
 #define pl_gun_ts_init() NULL
 #define pl_gun_ts_update(...) do {} while (0)
+#define pl_set_gun_rect(...) do {} while (0)
 
 #endif
diff --git a/frontend/plat_pollux.c b/frontend/plat_pollux.c
index 589049c3..1dafb7cd 100644
--- a/frontend/plat_pollux.c
+++ b/frontend/plat_pollux.c
@@ -653,6 +653,22 @@ void plat_finish(void)
 	close(memdev);
 }
 
+/* WIZ RAM lack workaround */
+void *memtab_mmap(void *addr, size_t size)
+{
+	void *ret;
+
+	if (gp2x_dev_id != GP2X_DEV_WIZ)
+		return mmap(addr, size, PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
+
+	ret = mmap(addr, size, PROT_READ | PROT_WRITE,
+		MAP_SHARED | MAP_FIXED, memdev, 0x03000000);
+	if (ret != MAP_FAILED)
+		warm_change_cb_range(WCB_C_BIT | WCB_B_BIT, 1, ret, size);
+	return ret;
+}
+
 /* Caanoo stuff, perhaps move later */
 static const char * const caanoo_keys[KEY_MAX + 1] = {
 	[0 ... KEY_MAX] = NULL,
diff --git a/libpcsxcore/new_dynarec/pcsxmem.c b/libpcsxcore/new_dynarec/pcsxmem.c
index 99b1efa6..47b876ef 100644
--- a/libpcsxcore/new_dynarec/pcsxmem.c
+++ b/libpcsxcore/new_dynarec/pcsxmem.c
@@ -299,9 +299,15 @@ void new_dyna_pcsx_mem_init(void)
 {
 	int i;
 
+#ifdef CUSTOM_MEMMAPS
+	// WIZ lack-of-RAM hack
+	extern void *memtab_mmap(void *addr, size_t size);
+	mem_readtab = memtab_mmap((void *)0x08000000, 0x200000 * 4);
+#else
 	// have to map these further to keep tcache close to .text
 	mem_readtab = mmap((void *)0x08000000, 0x200000 * 4, PROT_READ | PROT_WRITE,
 		MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+#endif
 	if (mem_readtab == MAP_FAILED) {
 		fprintf(stderr, "failed to map mem tables\n");
 		exit(1);
-- 
2.39.5