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updated to warm r2

This commit is contained in:
notaz 2009-06-23 12:28:13 +03:00
parent 4cadce9738
commit c872443f88
4 changed files with 108 additions and 46 deletions
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11
gp2x/Makefile
View File

@ -10,8 +10,12 @@ STRIP = $(PREFIX)/bin/arm-open2x-linux-strip
OBJS = main.o cpu.o memory.u video.o input.o sound.o gp2x.o gui.o \
cheats.o zip.o cpu_threaded.z arm_stub.o video_blend.o \
warm.o sys_cacheflush.o upscale_aspect.o
BIN = gpsp.gpe
warm.o upscale_aspect.o
ifeq ($(WIZ),1)
BIN = gpsp_wiz
else
BIN = gpsp_gp2x
endif
# Platform specific definitions
@ -31,9 +35,6 @@ ifneq ($(WIZ),1)
LIBS += -static
endif
#CFLAGS += -ggdb
#LIBS += -ggdb
# Compilation:
.SUFFIXES: .c

29
gp2x/sys_cacheflush.S
View File

@ -1,29 +0,0 @@
@ vim:filetype=armasm
#include <sys/syscall.h>
.global sys_cacheflush @ void *start_addr, void *end_addr
sys_cacheflush:
mov r2, #0
#ifdef __ARM_EABI__
/* EABI version */
str r7, [sp, #-4]!
mov r7, #(__ARM_NR_cacheflush & 0xff)
orr r7, r7, #(__ARM_NR_cacheflush & 0x00ff00)
orr r7, r7, #(__ARM_NR_cacheflush & 0xff0000)
swi 0
ldr r7, [sp], #4
#else
/* OABI */
swi __ARM_NR_cacheflush
#endif
bx lr
.global spend_cycles
spend_cycles:
mov r0,r0,lsr #2
0:subs r0, r0, #1
bne 0b
bx lr

3
gp2x/sys_cacheflush.h
View File

@ -1,3 +0,0 @@
void sys_cacheflush(void *start_addr, void *end_addr);

109
gp2x/warm.c
View File

@ -36,18 +36,77 @@
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/utsname.h>
#include <sys/syscall.h>
#include <errno.h>
#define WARM_CODE
#include "warm.h"
#include "sys_cacheflush.h"
extern long init_module(void *, unsigned long, const char *); /* provided by glibc */
static int warm_fd = -1;
static int kernel_version;
static void sys_cacheflush(void *start, void *end)
{
#ifdef __ARM_EABI__
/* EABI version */
int num = __ARM_NR_cacheflush;
__asm__("mov r0, %0 ;"
"mov r1, %1 ;"
"mov r2, #0 ;"
"mov r7, %2 ;"
"swi 0" : : "r" (start), "r" (end), "r" (num)
: "r0", "r1", "r2", "r3", "r7");
#else
/* OABI */
__asm__("mov r0, %0 ;"
"mov r1, %1 ;"
"mov r2, #0 ;"
"swi %2" : : "r" (start), "r" (end), "i" __ARM_NR_cacheflush
: "r0", "r1", "r2", "r3");
#endif
}
static int manual_insmod_26(const char *fname, const char *opts)
{
unsigned long len, read_len;
int ret = -1;
void *buff;
FILE *f;
f = fopen(fname, "rb");
if (f == NULL)
return -1;
fseek(f, 0, SEEK_END);
len = ftell(f);
fseek(f, 0, SEEK_SET);
buff = malloc(len);
if (buff == NULL)
goto fail0;
read_len = fread(buff, 1, len, f);
if (read_len != len) {
fprintf(stderr, "failed to read module\n");
goto fail1;
}
ret = init_module(buff, len, opts);
fail1:
free(buff);
fail0:
fclose(f);
return ret;
}
int warm_init(void)
{
struct utsname unm;
char buff[128];
char buff1[32], buff2[128];
int ret;
warm_fd = open("/proc/warm", O_RDWR);
if (warm_fd >= 0)
@ -55,23 +114,56 @@ int warm_init(void)
memset(&unm, 0, sizeof(unm));
uname(&unm);
snprintf(buff, sizeof(buff), "/sbin/insmod warm_%s.ko", unm.release);
if (strlen(unm.release) < 3 || unm.release[1] != '.') {
fprintf(stderr, "unexpected version string: %s\n", unm.release);
goto fail;
}
kernel_version = ((unm.release[0] - '0') << 4) | (unm.release[2] - '0');
snprintf(buff1, sizeof(buff1), "warm_%s.%s", unm.release, kernel_version >= 0x26 ? "ko" : "o");
snprintf(buff2, sizeof(buff2), "/sbin/insmod %s verbose=1", buff1);
/* try to insmod */
system(buff);
ret = system(buff2);
if (ret != 0) {
fprintf(stderr, "system/insmod failed: %d %d\n", ret, errno);
if (kernel_version >= 0x26) {
ret = manual_insmod_26(buff1, "verbose=1");
if (ret != 0)
fprintf(stderr, "manual insmod also failed: %d\n", ret);
}
}
warm_fd = open("/proc/warm", O_RDWR);
if (warm_fd >= 0)
return 0;
fail:
fprintf(stderr, "wARM: can't init, acting as sys_cacheflush wrapper\n");
return -1;
}
void warm_finish(void)
{
if (warm_fd >= 0)
close(warm_fd);
system("rmmod warm");
char cmd[64];
if (warm_fd < 0)
return;
close(warm_fd);
warm_fd = -1;
if (kernel_version < 0x26) {
struct utsname unm;
memset(&unm, 0, sizeof(unm));
uname(&unm);
snprintf(cmd, sizeof(cmd), "/sbin/rmmod warm_%s", unm.release);
}
else
strcpy(cmd, "/sbin/rmmod warm");
system(cmd);
}
int warm_cache_op_range(int op, void *addr, unsigned long size)
@ -80,6 +172,7 @@ int warm_cache_op_range(int op, void *addr, unsigned long size)
int ret;
if (warm_fd < 0) {
/* note that this won't work for warm_cache_op_all */
sys_cacheflush(addr, (char *)addr + size);
return -1;
}
@ -99,7 +192,7 @@ int warm_cache_op_range(int op, void *addr, unsigned long size)
int warm_cache_op_all(int op)
{
return warm_cache_op_range(op, NULL, (size_t)-1);
return warm_cache_op_range(op, NULL, (unsigned long)-1);
}
int warm_change_cb_range(int cb, int is_set, void *addr, unsigned long size)