libs/newlib-cygwin
libs
/
newlib-cygwin
mirror of git://sourceware.org/git/newlib-cygwin.git
4
0
Fork 0
Code Issues Projects Releases Wiki Activity

fhandler_proc.cc(format_proc_cpuinfo): add microcode 

Add microcode from Windows registry Update Revision REG_BINARY.
This commit is contained in:
Brian Inglis 2019-10-07 10:23:03 -06:00 committed by Ken Brown
parent 9fcee9bb1e
commit 169b9e093f
1 changed files with 21 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
winsup/cygwin/fhandler_proc.cc
View File

@ -687,16 +687,30 @@ format_proc_cpuinfo (void *, char *&destbuf)
yield ();
DWORD cpu_mhz = 0;
RTL_QUERY_REGISTRY_TABLE tab[2] = {
union
{
LONG uc_len; /* -max size of buffer before call */
char uc_microcode[16];
} uc;
RTL_QUERY_REGISTRY_TABLE tab[3] =
{
{ NULL, RTL_QUERY_REGISTRY_DIRECT | RTL_QUERY_REGISTRY_NOSTRING,
L"~Mhz", &cpu_mhz, REG_NONE, NULL, 0 },
{ NULL, RTL_QUERY_REGISTRY_DIRECT | RTL_QUERY_REGISTRY_NOSTRING,
L"Update Revision", &uc, REG_NONE, NULL, 0 },
{ NULL, 0, NULL, NULL, 0, NULL, 0 }
};
memset (&uc, 0, sizeof (uc.uc_microcode));
uc.uc_len = -16; /* -max size of microcode buffer */
RtlQueryRegistryValues (RTL_REGISTRY_ABSOLUTE, cpu_key, tab,
NULL, NULL);
cpu_mhz = ((cpu_mhz - 1) / 10 + 1) * 10; /* round up to multiple of 10 */
DWORD bogomips = cpu_mhz * 2; /* bogomips is double cpu MHz since MMX */
long long microcode = 0; /* at least 8 bytes for AMD */
memcpy (&microcode, &uc, sizeof (microcode));
bufptr += __small_sprintf (bufptr, "processor\t: %d\n", cpu_number);
uint32_t maxf, vendor_id[4], unused;
@ -789,11 +803,13 @@ format_proc_cpuinfo (void *, char *&destbuf)
"model\t\t: %d\n"
"model name\t: %s\n"
"stepping\t: %d\n"
"microcode\t: 0x%x\n"
"cpu MHz\t\t: %d.000\n",
family,
model,
in_buf.s + strspn (in_buf.s, " "),
stepping,
microcode,
cpu_mhz);
if (cache_size >= 0)