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2017-01-05buddy: Add a simple generic buddy allocatorBenjamin Herrenschmidt1-1/+2
It operates on bits representing whatever objects the caller wants it to represent, it's not per-se a memory allocator (it's meant to be used among others by XIVE for VP allocations). As such it cannot keep linked lists of free objects, so don't expect stellar perfs. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [stewart@linux.vnet.ibm.com: add (C) header, fix gcc4.8 build error] Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2017-01-04Add bitmap testStewart Smith1-1/+3
The worst test suite ever Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-10-25core/flash: Move subpartition locating logic out into own file, add testsStewart Smith1-0/+1
A unit test for parsing sub-partition info is useful for a number of reasons, one of which showed its head during development of secure/trusted boot. This patch just moves things around, there's no functional changes. Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-09-02consolidate gcov flags into HOSTGCOVFLAGS for host binariesStewart Smith1-2/+2
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-08-18Build host programs (and checks) with debug enabledBenjamin Herrenschmidt1-0/+2
This enables memory poisoning in allocations and list checking among other things. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-08-12Add infrastructure for pointer validation.Balbir Singh1-0/+1
If the kernel called an OPAL API with vmalloc'd address or any other address range in real mode, we would hit a problem with aliasing. Since the top 4 bits are ignored in real mode, pointers from 0xc.. and 0xd.. (and other ranges) could collide and lead to hard to solve bugs. This patch adds the infrastructure for pointer validation and a simple test case for testing the API Signed-off-by: Balbir Singh <bsingharora@gmail.com> [stewart@linux.vnet.ibm.com: move function to opal-internal.h rather than opal-api.h] Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-07-12make check: make test runs less noisyStewart Smith1-4/+4
Run a small wrapper around some unit tests with the QTEST makefile macro (QTEST=Quiet TEST). Also, wrap boot tests in mambo and qemu to be quiet by default. Both ./test/run.sh and the modified mambo/qemu test runner scripts output full stdout and stderr in the event of error. Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2016-03-30*/test/*: Added '<subdir>-check' make targetsOliver O'Halloran1-5/+8
Currently these exist for some parts of the source tree, but not all of it. They're nice if you are only modifing code in a one part of the tree as the full test suite can be a little slow. Signed-off-by: Oliver O'Halloran <oohall@gmail.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-10-08Add unit test for timebase functionsStewart Smith1-0/+1
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-08-17core/mem_region: Add mem_range_is_reserved()Jeremy Kerr1-0/+1
This change adds a function to check whether a range of memory is covered by one or more reservations. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-06-24Move NVRAM format/check code out into separate file to unit testStewart Smith1-0/+1
We (slightly) change the internal API so that we operate on parameters rather than globals, this means it's easier to unit test too. Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-06-24Add unit test for core/time-utilsStewart Smith1-0/+1
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-05-21Merge PRD rework from stableStewart Smith1-2/+2
2015-05-21core: Add mem_region_nextJeremy Kerr1-1/+13
This change adds a function to iterate mem_regions. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-05-21core: Prevent adding new regions after mem_region_add_dt_reservedJeremy Kerr1-1/+1
If we reserve any memory after mem_region_add_dt_reserved, that reservation won't appear in the device tree. Ensure that we can't add new regions after this point. Also, add a testcase for the finalise, including some basic reserved-ranges property checks. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-05-13Make makefile for core/test a bit prettierStewart Smith1-1/+13
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-05-13core: Prevent adding new regions after mem_region_add_dt_reservedJeremy Kerr1-1/+1
If we reserve any memory after mem_region_add_dt_reserved, that reservation won't appear in the device tree. Ensure that we can't add new regions after this point. Also, add a testcase for the finalise, including some basic reserved-ranges property checks. Signed-off-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-05-12Add pr_fmt to do printf/prlog prefixing automagicallyStewart Smith1-0/+1
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2015-01-19Merge branch 'update-2.1.1.1'Stewart Smith1-0/+1
2015-01-19opal: Add unit test for buffer overrun in prlog/printfMahesh Salgaonkar1-2/+12
Add unit test for buffer overrun in prlog/printf. Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> [stewart@linux.vnet.ibm.com: rebased to stable branch] Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-12-19clean CORE_TEST_NOSTUB binariesStewart Smith1-0/+1
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-12-19Add console-log unit testStewart Smith1-0/+19
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-12-19Exclude all test cases from coverage-reportStewart Smith1-0/+2
This way we get a true representation from the lcov coverage-report about what firmware code we're testing (besides, test cases are always going to only have 50% of branches hit - we're asserting the tests pass!) Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-12-19Pretty print make check and coverage outputStewart Smith1-5/+5
Can still get the details with V=1, just like normal make. Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-12-15Fix makefile dependency generation, especially for HOSTCCStewart Smith1-9/+0
Instead of having individual rules to generate .d, add -MMD to HOSTCC parameters, and just include the generated .d files. This fixes a few weird dependency issues. Also, make the mambo hello_kernel test depend on skiboot.lid Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-11-25use $(wildcard ) in test MakefilesDan Streetman1-1/+1
The core/test/ and libc/test/ Makefile.check files both contain: -include core/test/*.d (or libc/test/*d) which is incorrect, since that evaluates literally to a *.d file. This results in each build trying to find that file, and creating it when not found (in an incorrect way because of other problems in the Makefile). The correct way to specify it is: -include $(wildcard core/test/*.d) Signed-off-by: Dan Streetman <ddstreet@ieee.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-11-07timer: Add scheduled timer facilityBenjamin Herrenschmidt1-1/+1
For now running off the event pollers, that will improve once we get delayed interrupts from the SLW Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-10-22fsp/elog: Create a logging frontendAlistair Popple1-1/+1
In order to support fsp-less machines we need to be able to log errors using a BMC or some other mechanism. Currently the error logging code is tightly coupled to the platform making it difficult to add different platforms. This patch factors out the generic parts of the error logging code in preparation for adding different logging backends. It also adds a generic mechanism for pre-allocating a specific number of objects. Signed-off-by: Alistair Popple <alistair@popple.id.au> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-10-22fsp/elog: Separate the PEL log formatting functionsAlistair Popple1-2/+2
The PEL log format is not specific to the FSP. We plan to use the same format for OpenPOWER systems. This patch refactors the code into a platform agnostic file. Signed-off-by: Alistair Popple <alistair@popple.id.au> Reviewed-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-10-22Preliminary code coverage reporting infrastructureStewart Smith1-2/+14
Add support in core/test/Makefile.check to build -gcov binaries (with -lgcov and -fprofile-blah-blah) as well as some targets for producing lcov HTML code coverage reports. As part of this, I had to fix up an oddity in run-mem_region_init where that due to running under Valgrind, we'd be malloc()ed a heap with a small address, well inside the mem_regions we added but when not running under valgrind (e.g. for code coverage reporting) we would get a much larger address, outside this range and hit an assert. So, after fiddling with the memory stuff for this test, I think I have it right - it passes both under valgrind and not and does produce code coverage data. Currently, we're at this level of code coverage by unit tests: Hit Total Coverage Lines: 1936 2574 75.2 % Functions: 177 225 78.7 % Branches: 1243 2360 52.7 % The totals should largely be ignored due to the only code being counted is that linked into the unit tests (total LOC is ~50kLOC according to sloccount... so unit tests currently cover < 5%) Try the "make coverage-report" target, you'll get coverage-report directory with a LCOV HTML report Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
2014-07-02Initial commit of Open Source releaseBenjamin Herrenschmidt1-0/+29
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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