diff options
Diffstat (limited to 'gp2x')
| -rw-r--r-- | gp2x/gp2x.h | 2 | ||||
| -rw-r--r-- | gp2x/warm.c | 254 | ||||
| -rw-r--r-- | gp2x/warm.h | 100 |
3 files changed, 0 insertions, 356 deletions
diff --git a/gp2x/gp2x.h b/gp2x/gp2x.h index 85cdac8..ab8dd4c 100644 --- a/gp2x/gp2x.h +++ b/gp2x/gp2x.h @@ -1,8 +1,6 @@ #ifndef GP2X_H #define GP2X_H -#include "warm.h" - enum { GP2X_UP = 1 << 0, diff --git a/gp2x/warm.c b/gp2x/warm.c deleted file mode 100644 index 7cf22ac..0000000 --- a/gp2x/warm.c +++ /dev/null @@ -1,254 +0,0 @@ -/* - * wARM - exporting ARM processor specific privileged services to userspace - * userspace part - * - * Copyright (c) Gražvydas "notaz" Ignotas, 2009 - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the organization nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <unistd.h> -#include <fcntl.h> -#include <sys/ioctl.h> -#include <sys/utsname.h> -#include <sys/syscall.h> -#include <errno.h> - -#define WARM_CODE -#include "warm.h" - -/* provided by glibc */ -extern long init_module(void *, unsigned long, const char *); -extern long delete_module(const char *, unsigned int); - -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 -} - -/* Those are here because system() occasionaly fails on Wiz - * with errno 12 for some unknown reason */ -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; -} - -static int manual_rmmod(const char *name) -{ - return delete_module(name, O_NONBLOCK|O_EXCL); -} - -int warm_init(void) -{ - struct utsname unm; - char buff1[32], buff2[128]; - int ret; - - memset(&unm, 0, sizeof(unm)); - uname(&unm); - - 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'); - - warm_fd = open("/proc/warm", O_RDWR); - if (warm_fd >= 0) - return 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 */ - 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) -{ - char name[32], cmd[64]; - int ret; - - 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(name, sizeof(name), "warm_%s", unm.release); - } - else - strcpy(name, "warm"); - - snprintf(cmd, sizeof(cmd), "/sbin/rmmod %s", name); - ret = system(cmd); - if (ret != 0) { - fprintf(stderr, "system/rmmod failed: %d %d\n", ret, errno); - manual_rmmod(name); - } -} - -int warm_cache_op_range(int op, void *addr, unsigned long size) -{ - struct warm_cache_op wop; - 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; - } - - wop.ops = op; - wop.addr = (unsigned long)addr; - wop.size = size; - - ret = ioctl(warm_fd, WARMC_CACHE_OP, &wop); - if (ret != 0) { - perror("WARMC_CACHE_OP failed"); - return -1; - } - - return 0; -} - -int warm_cache_op_all(int op) -{ - 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) -{ - struct warm_change_cb ccb; - int ret; - - if (warm_fd < 0) - return -1; - - ccb.addr = (unsigned long)addr; - ccb.size = size; - ccb.cb = cb; - ccb.is_set = is_set; - - ret = ioctl(warm_fd, WARMC_CHANGE_CB, &ccb); - if (ret != 0) { - perror("WARMC_CHANGE_CB failed"); - return -1; - } - - return 0; -} - -int warm_change_cb_upper(int cb, int is_set) -{ - return warm_change_cb_range(cb, is_set, 0, 0); -} - -unsigned long warm_virt2phys(const void *ptr) -{ - unsigned long ptrio; - int ret; - - ptrio = (unsigned long)ptr; - ret = ioctl(warm_fd, WARMC_VIRT2PHYS, &ptrio); - if (ret != 0) { - perror("WARMC_VIRT2PHYS failed"); - return (unsigned long)-1; - } - - return ptrio; -} - diff --git a/gp2x/warm.h b/gp2x/warm.h deleted file mode 100644 index a3fdd6b..0000000 --- a/gp2x/warm.h +++ /dev/null @@ -1,100 +0,0 @@ -/* - * wARM - exporting ARM processor specific privileged services to userspace - * library functions - * - * Copyright (c) Gražvydas "notaz" Ignotas, 2009 - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the organization nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -#ifndef __WARM_H__ -#define __WARM_H__ 1 - -/* cache operations (warm_cache_op_*): - * o clean - write dirty data to memory, but also leave in cache. - * o invalidate - throw away everything in cache, losing dirty data. - * - * Write buffer is always drained, no ops will only drain WB - */ -#define WOP_D_CLEAN (1 << 0) -#define WOP_D_INVALIDATE (1 << 1) -#define WOP_I_INVALIDATE (1 << 2) - -/* change C and B bits (warm_change_cb_*) - * if is_set in not zero, bits are set, else cleared. - * the address for range function is virtual address. - */ -#define WCB_C_BIT (1 << 0) -#define WCB_B_BIT (1 << 1) - -#ifndef __ASSEMBLER__ - -#ifdef __cplusplus -extern "C" -{ -#endif - -int warm_init(void); - -int warm_cache_op_range(int ops, void *virt_addr, unsigned long size); -int warm_cache_op_all(int ops); - -int warm_change_cb_upper(int cb, int is_set); -int warm_change_cb_range(int cb, int is_set, void *virt_addr, unsigned long size); - -unsigned long warm_virt2phys(const void *ptr); - -void warm_finish(void); - -#ifdef __cplusplus -} -#endif - -/* internal */ -#ifdef WARM_CODE - -#include <linux/ioctl.h> - -#define WARM_IOCTL_BASE 'A' - -struct warm_cache_op -{ - unsigned long addr; - unsigned long size; - int ops; -}; - -struct warm_change_cb -{ - unsigned long addr; - unsigned long size; - int cb; - int is_set; -}; - -#define WARMC_CACHE_OP _IOW(WARM_IOCTL_BASE, 0, struct warm_cache_op) -#define WARMC_CHANGE_CB _IOW(WARM_IOCTL_BASE, 1, struct warm_change_cb) -#define WARMC_VIRT2PHYS _IOWR(WARM_IOCTL_BASE, 2, unsigned long) - -#endif /* WARM_CODE */ -#endif /* !__ASSEMBLER__ */ -#endif /* __WARM_H__ */ |