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-rw-r--r--src/vppinfra/cpu.c260
1 files changed, 162 insertions, 98 deletions
diff --git a/src/vppinfra/cpu.c b/src/vppinfra/cpu.c
index 045d1f727f4..385a4e25408 100644
--- a/src/vppinfra/cpu.c
+++ b/src/vppinfra/cpu.c
@@ -17,70 +17,76 @@
#include <vppinfra/format.h>
#include <vppinfra/cpu.h>
-#define foreach_x86_cpu_uarch \
- _(0x06, 0x9e, "Kaby Lake", "Kaby Lake DT/H/S/X") \
- _(0x06, 0x8e, "Kaby Lake", "Kaby Lake Y/U") \
- _(0x06, 0x8c, "Tiger Lake", "Tiger Lake U") \
- _(0x06, 0x86, "Tremont", "Elkhart Lake") \
- _(0x06, 0x85, "Knights Mill", "Knights Mill") \
- _(0x06, 0x7e, "Ice Lake", "Ice Lake U") \
- _(0x06, 0x7d, "Ice Lake", "Ice Lake Y") \
- _(0x06, 0x7a, "Goldmont Plus", "Gemini Lake") \
- _(0x06, 0x6c, "Ice Lake", "Ice Lake SP") \
- _(0x06, 0x6a, "Ice Lake", "Ice Lake DE") \
- _(0x06, 0x66, "Cannon Lake", "Cannon Lake U") \
- _(0x06, 0x5f, "Goldmont", "Denverton") \
- _(0x06, 0x5e, "Skylake", "Skylake DT/H/S") \
- _(0x06, 0x5c, "Goldmont", "Apollo Lake") \
- _(0x06, 0x5a, "Silvermont", "Moorefield") \
- _(0x06, 0x57, "Knights Landing", "Knights Landing") \
- _(0x06, 0x56, "Broadwell", "Broadwell DE") \
- _(0x06, 0x55, "Skylake", "Skylake X/SP") \
- _(0x06, 0x4f, "Broadwell", "Broadwell EP/EX") \
- _(0x06, 0x4e, "Skylake", "Skylake Y/U") \
- _(0x06, 0x4d, "Silvermont", "Rangeley") \
- _(0x06, 0x4c, "Airmont", "Braswell") \
- _(0x06, 0x47, "Broadwell", "Broadwell H") \
- _(0x06, 0x46, "Haswell", "Crystalwell") \
- _(0x06, 0x45, "Haswell", "Haswell ULT") \
- _(0x06, 0x3f, "Haswell", "Haswell E") \
- _(0x06, 0x3e, "Ivy Bridge", "Ivy Bridge E/EN/EP") \
- _(0x06, 0x3d, "Broadwell", "Broadwell U") \
- _(0x06, 0x3c, "Haswell", "Haswell") \
- _(0x06, 0x3a, "Ivy Bridge", "IvyBridge") \
- _(0x06, 0x37, "Silvermont", "BayTrail") \
- _(0x06, 0x36, "Saltwell", "Cedarview,Centerton") \
- _(0x06, 0x35, "Saltwell", "Cloverview") \
- _(0x06, 0x2f, "Westmere", "Westmere EX") \
- _(0x06, 0x2e, "Nehalem", "Nehalem EX") \
- _(0x06, 0x2d, "Sandy Bridge", "SandyBridge E/EN/EP") \
- _(0x06, 0x2c, "Westmere", "Westmere EP/EX,Gulftown") \
- _(0x06, 0x2a, "Sandy Bridge", "Sandy Bridge") \
- _(0x06, 0x27, "Saltwell", "Medfield") \
- _(0x06, 0x26, "Bonnell", "Tunnel Creek") \
- _(0x06, 0x25, "Westmere", "Arrandale,Clarksdale") \
- _(0x06, 0x1e, "Nehalem", "Clarksfield,Lynnfield,Jasper Forest") \
- _(0x06, 0x1d, "Penryn", "Dunnington") \
- _(0x06, 0x1c, "Bonnell", "Pineview,Silverthorne") \
- _(0x06, 0x1a, "Nehalem", "Nehalem EP,Bloomfield)") \
- _(0x06, 0x17, "Penryn", "Yorkfield,Wolfdale,Penryn,Harpertown")
+#define foreach_x86_cpu_uarch \
+ _ (0x06, 0x9e, "Kaby Lake", "Kaby Lake DT/H/S/X") \
+ _ (0x06, 0x9c, "Tremont", "Jasper Lake") \
+ _ (0x06, 0x9a, "Alder Lake", "Alder Lake L") \
+ _ (0x06, 0x97, "Alder Lake", "Alder Lake") \
+ _ (0x06, 0x96, "Tremont", "Elkhart Lake") \
+ _ (0x06, 0x8f, "Sapphire Rapids", "Sapphire Rapids X") \
+ _ (0x06, 0x8e, "Kaby Lake", "Kaby Lake Y/U") \
+ _ (0x06, 0x8c, "Tiger Lake", "Tiger Lake U") \
+ _ (0x06, 0x86, "Tremont", "Jacobsville") \
+ _ (0x06, 0x85, "Knights Mill", "Knights Mill") \
+ _ (0x06, 0x7e, "Ice Lake", "Ice Lake U") \
+ _ (0x06, 0x7d, "Ice Lake", "Ice Lake Y") \
+ _ (0x06, 0x7a, "Goldmont Plus", "Gemini Lake") \
+ _ (0x06, 0x6c, "Ice Lake", "Ice Lake SP") \
+ _ (0x06, 0x6a, "Ice Lake", "Ice Lake DE") \
+ _ (0x06, 0x66, "Cannon Lake", "Cannon Lake U") \
+ _ (0x06, 0x5f, "Goldmont", "Denverton") \
+ _ (0x06, 0x5e, "Skylake", "Skylake DT/H/S") \
+ _ (0x06, 0x5c, "Goldmont", "Apollo Lake") \
+ _ (0x06, 0x5a, "Silvermont", "Moorefield") \
+ _ (0x06, 0x57, "Knights Landing", "Knights Landing") \
+ _ (0x06, 0x56, "Broadwell", "Broadwell DE") \
+ _ (0x06, 0x55, "Skylake", "Skylake X/SP") \
+ _ (0x06, 0x4f, "Broadwell", "Broadwell EP/EX") \
+ _ (0x06, 0x4e, "Skylake", "Skylake Y/U") \
+ _ (0x06, 0x4d, "Silvermont", "Rangeley") \
+ _ (0x06, 0x4c, "Airmont", "Braswell") \
+ _ (0x06, 0x47, "Broadwell", "Broadwell H") \
+ _ (0x06, 0x46, "Haswell", "Crystalwell") \
+ _ (0x06, 0x45, "Haswell", "Haswell ULT") \
+ _ (0x06, 0x3f, "Haswell", "Haswell E") \
+ _ (0x06, 0x3e, "Ivy Bridge", "Ivy Bridge E/EN/EP") \
+ _ (0x06, 0x3d, "Broadwell", "Broadwell U") \
+ _ (0x06, 0x3c, "Haswell", "Haswell") \
+ _ (0x06, 0x3a, "Ivy Bridge", "IvyBridge") \
+ _ (0x06, 0x37, "Silvermont", "BayTrail") \
+ _ (0x06, 0x36, "Saltwell", "Cedarview,Centerton") \
+ _ (0x06, 0x35, "Saltwell", "Cloverview") \
+ _ (0x06, 0x2f, "Westmere", "Westmere EX") \
+ _ (0x06, 0x2e, "Nehalem", "Nehalem EX") \
+ _ (0x06, 0x2d, "Sandy Bridge", "SandyBridge E/EN/EP") \
+ _ (0x06, 0x2c, "Westmere", "Westmere EP/EX,Gulftown") \
+ _ (0x06, 0x2a, "Sandy Bridge", "Sandy Bridge") \
+ _ (0x06, 0x27, "Saltwell", "Medfield") \
+ _ (0x06, 0x26, "Bonnell", "Tunnel Creek") \
+ _ (0x06, 0x25, "Westmere", "Arrandale,Clarksdale") \
+ _ (0x06, 0x1e, "Nehalem", "Clarksfield,Lynnfield,Jasper Forest") \
+ _ (0x06, 0x1d, "Penryn", "Dunnington") \
+ _ (0x06, 0x1c, "Bonnell", "Pineview,Silverthorne") \
+ _ (0x06, 0x1a, "Nehalem", "Nehalem EP,Bloomfield)") \
+ _ (0x06, 0x17, "Penryn", "Yorkfield,Wolfdale,Penryn,Harpertown")
/* _(implementor-id, part-id, vendor-name, cpu-name, show CPU pass as string) */
-#define foreach_aarch64_cpu_uarch \
- _(0x41, 0xd03, "ARM", "Cortex-A53", 0) \
- _(0x41, 0xd07, "ARM", "Cortex-A57", 0) \
- _(0x41, 0xd08, "ARM", "Cortex-A72", 0) \
- _(0x41, 0xd09, "ARM", "Cortex-A73", 0) \
- _(0x41, 0xd0a, "ARM", "Cortex-A75", 0) \
- _(0x41, 0xd0b, "ARM", "Cortex-A76", 0) \
- _(0x41, 0xd0c, "ARM", "Neoverse-N1", 0) \
- _(0x41, 0xd4a, "ARM", "Neoverse-E1", 0) \
- _(0x43, 0x0a1, "Marvell", "THUNDERX CN88XX", 0) \
- _(0x43, 0x0a2, "Marvell", "OCTEON TX CN81XX", 0) \
- _(0x43, 0x0a3, "Marvell", "OCTEON TX CN83XX", 0) \
- _(0x43, 0x0af, "Marvell", "THUNDERX2 CN99XX", 1) \
- _(0x43, 0x0b1, "Marvell", "OCTEON TX2 CN98XX", 1) \
- _(0x43, 0x0b2, "Marvell", "OCTEON TX2 CN96XX", 1)
+#define foreach_aarch64_cpu_uarch \
+ _ (0x41, 0xd03, "ARM", "Cortex-A53", 0) \
+ _ (0x41, 0xd07, "ARM", "Cortex-A57", 0) \
+ _ (0x41, 0xd08, "ARM", "Cortex-A72", 0) \
+ _ (0x41, 0xd09, "ARM", "Cortex-A73", 0) \
+ _ (0x41, 0xd0a, "ARM", "Cortex-A75", 0) \
+ _ (0x41, 0xd0b, "ARM", "Cortex-A76", 0) \
+ _ (0x41, 0xd0c, "ARM", "Neoverse-N1", 0) \
+ _ (0x41, 0xd49, "ARM", "Neoverse-N2", 0) \
+ _ (0x41, 0xd4a, "ARM", "Neoverse-E1", 0) \
+ _ (0x43, 0x0a1, "Marvell", "THUNDERX CN88XX", 0) \
+ _ (0x43, 0x0a2, "Marvell", "OCTEON TX CN81XX", 0) \
+ _ (0x43, 0x0a3, "Marvell", "OCTEON TX CN83XX", 0) \
+ _ (0x43, 0x0af, "Marvell", "THUNDERX2 CN99XX", 1) \
+ _ (0x43, 0x0b1, "Marvell", "OCTEON TX2 CN98XX", 1) \
+ _ (0x43, 0x0b2, "Marvell", "OCTEON TX2 CN96XX", 1)
__clib_export u8 *
format_cpu_uarch (u8 * s, va_list * args)
@@ -88,13 +94,34 @@ format_cpu_uarch (u8 * s, va_list * args)
#if __x86_64__
u32 __attribute__ ((unused)) eax, ebx, ecx, edx;
u8 model, family, stepping;
+ u8 amd_vendor = 0;
+
+ if (__get_cpuid (0, &eax, &ebx, &ecx, &edx) == 0)
+ return format (s, "unknown (missing cpuid)");
+
+ if (amd_vendor (ebx, ecx, edx))
+ amd_vendor = 1;
if (__get_cpuid (1, &eax, &ebx, &ecx, &edx) == 0)
return format (s, "unknown (missing cpuid)");
- model = ((eax >> 4) & 0x0f) | ((eax >> 12) & 0xf0);
- family = (eax >> 8) & 0x0f;
stepping = eax & 0x0f;
+ if (amd_vendor)
+ {
+ family = ((eax >> 8) & 0x0f);
+ model = ((eax >> 4) & 0x0f);
+ if (family >= 0xf)
+ {
+ family = family + ((eax >> 20) & 0xf);
+ model = (model | ((eax >> 12) & 0xf0));
+ }
+ return format (s, "Zen (family 0x%02x model 0x%02x)", family, model);
+ }
+ else
+ {
+ model = ((eax >> 4) & 0x0f) | ((eax >> 12) & 0xf0);
+ family = (eax >> 8) & 0x0f;
+ }
#define _(f,m,a,c) if ((model == m) && (family == f)) return \
format(s, "[0x%x] %s ([0x%02x] %s) stepping 0x%x", f, a, m, c, stepping);
@@ -103,30 +130,28 @@ format(s, "[0x%x] %s ([0x%02x] %s) stepping 0x%x", f, a, m, c, stepping);
return format (s, "unknown (family 0x%02x model 0x%02x)", family, model);
#elif __aarch64__
- int fd;
unformat_input_t input;
u32 implementer, primary_part_number, variant, revision;
- fd = open ("/proc/cpuinfo", 0);
- if (fd < 0)
- return format (s, "unknown");
-
- unformat_init_clib_file (&input, fd);
- while (unformat_check_input (&input) != UNFORMAT_END_OF_INPUT)
+ if (unformat_init_file (&input, "/proc/cpuinfo"))
{
- if (unformat (&input, "CPU implementer%_: 0x%x", &implementer))
- ;
- else if (unformat (&input, "CPU part%_: 0x%x", &primary_part_number))
- ;
- else if (unformat (&input, "CPU variant%_: 0x%x", &variant))
- ;
- else if (unformat (&input, "CPU revision%_: %u", &revision))
- ;
- else
- unformat_skip_line (&input);
+ while (unformat_check_input (&input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (&input, "CPU implementer%_: 0x%x", &implementer))
+ ;
+ else if (unformat (&input, "CPU part%_: 0x%x", &primary_part_number))
+ ;
+ else if (unformat (&input, "CPU variant%_: 0x%x", &variant))
+ ;
+ else if (unformat (&input, "CPU revision%_: %u", &revision))
+ ;
+ else
+ unformat_skip_line (&input);
+ }
+ unformat_free (&input);
}
- unformat_free (&input);
- close (fd);
+ else
+ return format (s, "unknown");
#define _(i,p,a,c,_format) if ((implementer == i) && (primary_part_number == p)){ \
if (_format)\
@@ -193,7 +218,7 @@ format_cpu_model_name (u8 * s, va_list * args)
#endif
}
-
+#if defined(__x86_64__) || defined(__aarch64__)
static inline char const *
flag_skip_prefix (char const *flag, const char *pfx, int len)
{
@@ -201,20 +226,22 @@ flag_skip_prefix (char const *flag, const char *pfx, int len)
return flag + len - 1;
return flag;
}
+#endif
__clib_export u8 *
-format_cpu_flags (u8 * s, va_list * args)
+format_cpu_flags (u8 *s, va_list *args)
{
#if defined(__x86_64__)
-#define _(flag, func, reg, bit) \
- if (clib_cpu_supports_ ## flag()) \
- s = format (s, "%s ", flag_skip_prefix(#flag, "x86_", sizeof("x86_")));
+#define _(flag, func, reg, bit) \
+ if (clib_cpu_supports_##flag ()) \
+ s = format (s, "%s ", flag_skip_prefix (#flag, "x86_", sizeof ("x86_")));
foreach_x86_64_flags return s;
#undef _
#elif defined(__aarch64__)
-#define _(flag, bit) \
- if (clib_cpu_supports_ ## flag()) \
- s = format (s, "%s ", flag_skip_prefix(#flag, "aarch64_", sizeof("aarch64_")));
+#define _(flag, bit) \
+ if (clib_cpu_supports_##flag ()) \
+ s = format (s, "%s ", \
+ flag_skip_prefix (#flag, "aarch64_", sizeof ("aarch64_")));
foreach_aarch64_flags return s;
#undef _
#else /* ! ! __x86_64__ && ! __aarch64__ */
@@ -225,17 +252,25 @@ format_cpu_flags (u8 * s, va_list * args)
__clib_export u32
clib_get_current_cpu_id ()
{
+#ifdef __linux__
unsigned cpu, node;
syscall (__NR_getcpu, &cpu, &node, 0);
return cpu;
+#else
+ return 0;
+#endif /* __linux__ */
}
__clib_export u32
clib_get_current_numa_node ()
{
+#ifdef __linux__
unsigned cpu, node;
syscall (__NR_getcpu, &cpu, &node, 0);
return node;
+#else
+ return 0;
+#endif /* __linux__ */
}
__clib_export u8 *
@@ -250,10 +285,39 @@ format_march_variant (u8 *s, va_list *args)
return format (s, "%s", variants[t]);
}
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
+#ifdef __aarch64__
+
+__clib_export const clib_cpu_info_t *
+clib_get_cpu_info ()
+{
+ static int first_run = 1;
+ static clib_cpu_info_t info = {};
+ if (first_run)
+ {
+ FILE *fp = fopen ("/proc/cpuinfo", "r");
+ char buf[128];
+
+ if (!fp)
+ return 0;
+
+ while (!feof (fp))
+ {
+ if (!fgets (buf, sizeof (buf), fp))
+ break;
+ buf[127] = '\0';
+ if (strstr (buf, "CPU part"))
+ info.aarch64.part_num =
+ strtol (memchr (buf, ':', 128) + 2, NULL, 0);
+
+ if (strstr (buf, "CPU implementer"))
+ info.aarch64.implementer =
+ strtol (memchr (buf, ':', 128) + 2, NULL, 0);
+ }
+ fclose (fp);
+
+ first_run = 0;
+ }
+ return &info;
+}
+
+#endif