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Diffstat (limited to 'sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c')
-rw-r--r--sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c250
1 files changed, 0 insertions, 250 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c b/sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c
deleted file mode 100644
index 6838a77a76..0000000000
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c
+++ /dev/null
@@ -1,250 +0,0 @@
-/* Get frequency of the system processor. sparc64 version.
- Copyright (C) 2001-2018 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <ctype.h>
-#include <fcntl.h>
-#include <string.h>
-#include <unistd.h>
-#include <dirent.h>
-#include <stdlib.h>
-#include <inttypes.h>
-#include <sys/ioctl.h>
-#include <asm/openpromio.h>
-
-static hp_timing_t
-__get_clockfreq_via_cpuinfo (void)
-{
- hp_timing_t result;
- int fd;
-
- result = 0;
-
- fd = __open ("/proc/cpuinfo", O_RDONLY);
- if (fd != -1)
- {
- char buf[8192];
- ssize_t n;
-
- n = __read (fd, buf, sizeof buf);
- if (n > 0)
- {
- char *mhz = memmem (buf, n, "Cpu0ClkTck", 7);
-
- if (mhz != NULL)
- {
- char *endp = buf + n;
-
- /* Search for the beginning of the string. */
- while (mhz < endp
- && (*mhz < '0' || *mhz > '9')
- && (*mhz < 'a' || *mhz > 'f')
- && *mhz != '\n')
- ++mhz;
-
- while (mhz < endp && *mhz != '\n')
- {
- if ((*mhz >= '0' && *mhz <= '9') ||
- (*mhz >= 'a' && *mhz <= 'f'))
- {
- result <<= 4;
- if (*mhz >= '0' && *mhz <= '9')
- result += *mhz - '0';
- else
- result += (*mhz - 'a') + 10;
- }
- ++mhz;
- }
- }
- }
-
- __close (fd);
- }
-
- return result;
-}
-
-static hp_timing_t
-__get_clockfreq_via_proc_openprom (void)
-{
- hp_timing_t result;
- int obp_fd;
-
- result = 0;
-
- obp_fd = __open ("/proc/openprom", O_RDONLY);
- if (obp_fd != -1)
- {
- unsigned long int buf[4096 / sizeof (unsigned long int)];
- struct dirent64 *dirp = (struct dirent64 *) buf;
- ssize_t len;
-
- while ((len = __getdents64 (obp_fd, (char *) dirp, sizeof (buf))) > 0)
- {
- struct dirent64 *this_dirp = dirp;
-
- while (len > 0)
- {
- char node[strlen ("/proc/openprom/")
- + _D_ALLOC_NAMLEN (this_dirp)
- + strlen ("/clock-frequency")];
- char *prop;
- int fd;
-
- /* Note that
- strlen("/clock-frequency") > strlen("/device_type")
- */
- __stpcpy (prop = __stpcpy (__stpcpy (node, "/proc/openprom/"),
- this_dirp->d_name),
- "/device_type");
- fd = __open (node, O_RDONLY);
- if (fd != -1)
- {
- char type_string[128];
- int ret;
-
- ret = __read (fd, type_string, sizeof (type_string));
- if (ret > 0 && strncmp (type_string, "'cpu'", 5) == 0)
- {
- int clkfreq_fd;
-
- __stpcpy (prop, "/clock-frequency");
- clkfreq_fd = __open (node, O_RDONLY);
- if (clkfreq_fd != -1)
- {
- if (__read (clkfreq_fd, type_string,
- sizeof (type_string)) > 0)
- result = (hp_timing_t)
- strtoumax (type_string, NULL, 16);
- __close (clkfreq_fd);
- }
- }
- __close (fd);
- }
-
- if (result != 0)
- break;
-
- len -= this_dirp->d_reclen;
- this_dirp = (struct dirent64 *)
- ((char *) this_dirp + this_dirp->d_reclen);
- }
- if (result != 0)
- break;
- }
- __close (obp_fd);
- }
-
- return result;
-}
-
-static void set_obp_int (struct openpromio *op, int val)
-{
- char *cp = op->oprom_array;
- int *ip = (int *) cp;
-
- *ip = val;
-}
-
-static int get_obp_int (struct openpromio *op)
-{
- char *cp = op->oprom_array;
- int *ip = (int *) cp;
-
- return *ip;
-}
-
-static hp_timing_t
-__get_clockfreq_via_dev_openprom (void)
-{
- hp_timing_t result;
- int obp_dev_fd;
-
- result = 0;
-
- obp_dev_fd = __open ("/dev/openprom", O_RDONLY);
- if (obp_dev_fd != -1)
- {
- char obp_buf[8192];
- struct openpromio *obp_cmd = (struct openpromio *)obp_buf;
- int ret;
-
- obp_cmd->oprom_size =
- sizeof (obp_buf) - sizeof (unsigned int);
- set_obp_int (obp_cmd, 0);
- ret = __ioctl (obp_dev_fd, OPROMCHILD, (char *) obp_cmd);
- if (ret == 0)
- {
- int cur_node = get_obp_int (obp_cmd);
-
- while (cur_node != 0 && cur_node != -1)
- {
- obp_cmd->oprom_size = sizeof (obp_buf) - sizeof (unsigned int);
- strcpy (obp_cmd->oprom_array, "device_type");
- ret = __ioctl (obp_dev_fd, OPROMGETPROP, (char *) obp_cmd);
- if (ret == 0
- && strncmp (obp_cmd->oprom_array, "cpu", 3) == 0)
- {
- obp_cmd->oprom_size = (sizeof (obp_buf)
- - sizeof (unsigned int));
- strcpy (obp_cmd->oprom_array, "clock-frequency");
- ret = __ioctl (obp_dev_fd, OPROMGETPROP, (char *) obp_cmd);
- if (ret == 0)
- result = (hp_timing_t) get_obp_int (obp_cmd);
- }
- obp_cmd->oprom_size = sizeof (obp_buf) - sizeof (unsigned int);
- set_obp_int (obp_cmd, cur_node);
- ret = __ioctl (obp_dev_fd, OPROMNEXT, (char *) obp_cmd);
- if (ret < 0)
- break;
- cur_node = get_obp_int (obp_cmd);
- }
- }
- }
-
- return result;
-}
-
-hp_timing_t
-__get_clockfreq (void)
-{
- static hp_timing_t result;
-
- /* If this function was called before, we know the result. */
- if (result != 0)
- return result;
-
- /* We first read the information from the /proc/cpuinfo file.
- It contains at least one line like
- Cpu0ClkTick : 000000002cb41780
- We search for this line and convert the number in an integer. */
- result = __get_clockfreq_via_cpuinfo ();
- if (result != 0)
- return result;
-
- /* If that did not work, try to find an OpenPROM node
- with device_type equal to 'cpu' using /dev/openprom
- and fetch the clock-frequency property from there. */
- result = __get_clockfreq_via_dev_openprom ();
- if (result != 0)
- return result;
-
- /* Finally, try the same lookup as above but using /proc/openprom. */
- result = __get_clockfreq_via_proc_openprom ();
-
- return result;
-}
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