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authorGabriel Ganne <gabriel.ganne@enea.com>2018-01-03 09:18:47 +0100
committerDamjan Marion <dmarion.lists@gmail.com>2018-01-06 18:42:55 +0000
commitae66b0d95a7cc4881365c3abdd85ae9144882568 (patch)
tree051b1889d53fe0025a57b16dc2fed688118e63a3 /src
parent8aa9aaff8e1fcf9e116e33e818b45998da71c363 (diff)
aarch64 - show cpu microarchitecture
Combine implementer, part, variant, and revision into one cpu description line. For example : ARM (Cortex-A57 PASS 1.2) * get infos from /proc/cpuinfo * only recognize armv8 processors * add all given cavium processors * Cavium starts counting variants from 1 instead of 0 Change-Id: I4f3820fb13a6bd2a0dc59e28fbe6f48a5b0ceb25 Signed-off-by: Gabriel Ganne <gabriel.ganne@enea.com>
Diffstat (limited to 'src')
-rw-r--r--src/vppinfra/cpu.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/src/vppinfra/cpu.c b/src/vppinfra/cpu.c
index 6bd19c8e7f3..ef08dc7c022 100644
--- a/src/vppinfra/cpu.c
+++ b/src/vppinfra/cpu.c
@@ -12,6 +12,7 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
+#include <fcntl.h>
#include <vppinfra/clib.h>
#include <vppinfra/format.h>
#include <vppinfra/cpu.h>
@@ -56,6 +57,18 @@
_(0x06, 0x1a, "Nehalem", "Nehalem EP,Bloomfield)") \
_(0x06, 0x17, "Penryn", "Yorkfield,Wolfdale,Penryn,Harpertown")
+#define foreach_aarch64_cpu_uarch \
+ _(0x41, 0xd03, "ARM", "Cortex-A53") \
+ _(0x41, 0xd07, "ARM", "Cortex-A57") \
+ _(0x41, 0xd08, "ARM", "Cortex-A72") \
+ _(0x41, 0xd09, "ARM", "Cortex-A73") \
+ _(0x43, 0x0a1, "Cavium", "ThunderX CN88XX") \
+ _(0x43, 0x0a2, "Cavium", "Octeon TX CN81XX") \
+ _(0x43, 0x0a3, "Cavium", "Octeon TX CN83XX") \
+ _(0x43, 0x0af, "Cavium", "ThunderX2 CN99XX") \
+ _(0x43, 0x0b1, "Cavium", "Octeon TX2 CN98XX") \
+ _(0x43, 0x0b2, "Cavium", "Octeon TX2 CN93XX") \
+
u8 *
format_cpu_uarch (u8 * s, va_list * args)
{
@@ -74,6 +87,43 @@ format_cpu_uarch (u8 * s, va_list * args)
#undef _
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 (&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);
+ close (fd);
+
+ /* Note: Cavium starts counting variants from 1 instead of 0 */
+ if (implementer == 0x43)
+ variant++;
+
+#define _(i,p,a,c) if ((implementer == i) && (primary_part_number == p)) \
+ return format(s, "%s (%s PASS %u.%u)", a, c, variant, revision);
+ foreach_aarch64_cpu_uarch
+#undef _
+ return format (s, "unknown (implementer 0x%02x part 0x%03x PASS %u.%u)",
+ implementer, primary_part_number, variant, revision);
+
#else /* ! __x86_64__ */
return format (s, "unknown");
#endif