X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=libpcsxcore%2Flightrec%2Fmem.c;h=c0186da16ce96206e6da7f48524941816440199a;hb=3569821141fcc25a47b5d6942d219b659aba5547;hp=76608ea44c9895b727b55b992e7db7924bc12f9d;hpb=a093e81fbfc1c588b091656844b26684ec3dc01d;p=pcsx_rearmed.git

diff --git a/libpcsxcore/lightrec/mem.c b/libpcsxcore/lightrec/mem.c
index 76608ea4..c0186da1 100644
--- a/libpcsxcore/lightrec/mem.c
+++ b/libpcsxcore/lightrec/mem.c
@@ -3,6 +3,7 @@
  * Copyright (C) 2022 Paul Cercueil <paul@crapouillou.net>
  */
 
+#define _GNU_SOURCE
 #include <errno.h>
 #include <fcntl.h>
 #include <stdbool.h>
@@ -11,6 +12,7 @@
 #include <sys/mman.h>
 #include <sys/shm.h>
 #include <sys/stat.h>
+#include <sys/syscall.h>
 #include <unistd.h>
 
 #include "../psxhw.h"
@@ -25,6 +27,12 @@
 #define MAP_FIXED_NOREPLACE 0x100000
 #endif
 
+#ifndef MFD_HUGETLB
+#define MFD_HUGETLB 0x0004
+#endif
+
+void *code_buffer;
+
 static const uintptr_t supported_io_bases[] = {
 	0x0,
 	0x10000000,
@@ -64,7 +72,8 @@ static int lightrec_mmap_ram(bool hugetlb)
 	if (hugetlb)
 		flags |= MFD_HUGETLB;
 
-	memfd = memfd_create("/lightrec_memfd", flags);
+        memfd = syscall(SYS_memfd_create, "/lightrec_memfd",
+			flags);
 	if (memfd < 0) {
 		err = -errno;
 		fprintf(stderr, "Failed to create memfd: %d\n", err);
@@ -120,9 +129,7 @@ int lightrec_init_mmap(void)
 	unsigned int i;
 	uintptr_t base;
 	void *map;
-	int err;
-
-	err = lightrec_mmap_ram(true);
+	int err = lightrec_mmap_ram(true);
 	if (err) {
 		err = lightrec_mmap_ram(false);
 		if (err) {
@@ -166,10 +173,24 @@ int lightrec_init_mmap(void)
 
 	psxH = (s8 *)map;
 
+	map = mmap_huge((void *)(base + 0x800000), CODE_BUFFER_SIZE,
+			PROT_EXEC | PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_FIXED_NOREPLACE | MAP_ANONYMOUS,
+			0, 0);
+	if (map == MAP_FAILED) {
+		err = -EINVAL;
+		fprintf(stderr, "Unable to mmap code buffer\n");
+		goto err_unmap_scratch;
+	}
+
+	code_buffer = map;
+
 	return 0;
 
+err_unmap_scratch:
+	munmap(psxH, 0x10000);
 err_unmap_bios:
-	munmap(psxR, 0x80000);
+	munmap(psxR, 0x200000);
 err_unmap_parallel:
 	munmap(psxP, 0x10000);
 err_unmap:
@@ -182,8 +203,9 @@ void lightrec_free_mmap(void)
 {
 	unsigned int i;
 
+	munmap(code_buffer, CODE_BUFFER_SIZE);
 	munmap(psxH, 0x10000);
-	munmap(psxR, 0x80000);
+	munmap(psxR, 0x200000);
 	munmap(psxP, 0x10000);
 	for (i = 0; i < 4; i++)
 		munmap((void *)((uintptr_t)psxM + i * 0x200000), 0x200000);