Improved parsing of brand strings for both Pineview and Cedarview
Atoms.
Add tests for both the Pineview Atom, and also Broadwell-E
(forgotten in a previous commit).
The test is a snapshot of a Haswell i7 (a.k.a. "Crystalwell") core.
This is the only test in the test DB right now which has lines for
L4 cache size, associativity and cacheline size different than "-1".
Also update create_test.py to accommodate for the new fields.
According to wikipedia, cpu-world and some cpu-z screenshots, these processors
do have a code name and it's willamette, northwood, prescott or cedar mill
Signed-off-by: Veselin Georgiev <anrieff@gmail.com>
The reason was that the invocation of the cpuid_tool through the makefile
was using LD_LIBRARY_PATH=. to force link&use of the latest-build libcpuid
library. This doesn't seem to work, so using LD_PRELOAD to explicitly load
libcpuid.so into cpuid_tool.
The committed approach of course doesn't work on Mac OS X, where
make test-old should be used.
Priously all fields in the matchtable were treated equal in importance.
With this change, the cache size a taken with half the weight in the decision.
Also add detection entries for some more recent Haswells, and the respective
tests. These are an i5 Haswell from a Mac Book Pro, and a i7 Haswel from
Thinkpad T540.
- Detect AVX and AVX2 on both Intel and AMD CPUs
- Detect BMI1 and BMI2 instruction sets (BMI2 is only on Haswell, BMI1 is
also present on Bulldozers).
- Fix tests to reflect changes.
The last change to flags detection caused a bunch of tests to fail.
The reason is that they are bogus, all recent Intel chips don't have
RDTSCP indicated in the test files, whereas they have it in reality.
I figured it will be easier to add "--fix" option to run_tests.py,
rather than fixing each testfile by hand.
This is also extended in the Makefile:
"make test" runs the tests and reports discrepancies.
"make fix-tests" fixes any offending tests. This blindly assumes that
libcpuid is sane.
- Atom Dual-core (Diamondville) is renamed to just Atom (Diamondville)
- The test with Atom D425 is named "Pineview", while the one with
Atom D525 was incorrectly named "Cedarview". Moving the latter to
atom-pineview-2.test and fixing its codename.
Instead of one big pile of tests in tests_stash.txt, keep each CPU
example raw data/parsed data in a file, ordered in a tree by
manufacturer and microarchitecture. The 64 .test files have been
extracted from tests_stash.txt. The add_test script is changed to
create_test and it doesn't append to test_stash.txt, instead it
spits out data to be saved in a .test file.
run_tests.py is not refactored yet, to be done in a subsequent commit.
This adds support for x2apic detection. This is not a direct merge, since
- the feature is spelled as 'x2apic' instead of 'x2APIC', for consistency with other flags;
- tests are added
- the id of the feature is moved to the end of the cpu_feature_t enum, for binary
compatibility.
