Changes in reg.h

bdb07f35 - selftests/powerpc/dexcr: Add hashst/hashchk test

Mon, 19 Jun 2023 07:36:27 +0000

selftests/powerpc/dexcr: Add hashst/hashchk testTest the kernel DEXCR[NPHIE] interface and hashchk exception handling.Introduces with it a DEXCR utils library for common DEXCR operations.Volatile is used to prevent the compiler optimising away the signaltests.Signed-off-by: Benjamin Gray Signed-off-by: Michael Ellerman Link: https://msgid.link/20230616034846.311705-11-bgray@linux.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/include/reg.h

53fa86e7 - selftests/powerpc/ptrace: Convert to load/store doubles

Mon, 27 Jun 2022 14:02:34 +0000

selftests/powerpc/ptrace: Convert to load/store doublesSome of the ptrace tests check the contents of floating pointerregisters. Currently these use float, which is always 4 bytes, but theptrace API supports saving/restoring 8 bytes per register, so switch tousing doubles to exercise the code more fully.Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220627140239.2464900-8-mpe@ellerman.id.au List of files: /linux-6.15/tools/testing/selftests/powerpc/include/reg.h

af9f3f31 - selftests/powerpc/ptrace: Drop unused load_fpr_single_precision()

Mon, 27 Jun 2022 14:02:33 +0000

selftests/powerpc/ptrace: Drop unused load_fpr_single_precision()This function is never called, drop it.Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220627140239.2464900-7-mpe@ellerman.id.au List of files: /linux-6.15/tools/testing/selftests/powerpc/include/reg.h

9cfd110a - selftests/powerpc/pmu: Refactor the platform check and add macros to find array size/PVR

Fri, 10 Jun 2022 13:40:47 +0000

selftests/powerpc/pmu: Refactor the platform check and add macros to find array size/PVRThe platform check for selftest support "check_pvr_for_sampling_tests"is specific to sampling tests which includes PVR check, presence ofPMU and extended regs support. Extended regs support is needed forsampling tests which tests whether PMU registers are programmedcorrectly. There could be other sampling tests which may not needextended regs, example, bhrb filter tests which only needs validitycheck via event open.Hence refactor the platform check to have a common function"platform_check_for_tests" that checks only for PVR checkand presence of PMU. The existing function"check_pvr_for_sampling_tests" will invoke the common functionand also will include checks for extended regs specific forsampling. The common function can also be used by tests otherthan sampling like event code tests.Add macro to find array size ("ARRAY_SIZE") to samplingtests "misc.h" file. This can be used in next tests tofind event array size. Also update "include/reg.h" toadd macros to find minor and major version from PVR whichwill be used in testcases.Signed-off-by: Athira Rajeev Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220610134113.62991-10-atrajeev@linux.vnet.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/include/reg.h

6523dce8 - selftests/powerpc/pmu: Add macros to parse event codes

Thu, 27 Jan 2022 07:19:55 +0000

selftests/powerpc/pmu: Add macros to parse event codesEach platform has raw event encoding format which specifies the bitpositions for different fields. The fields from event code getstranslated into performance monitoring mode control register (MMCRx)settings. Patch add macros to extract individual fields from the eventcode.Add functions for sanity checks, since testcases currently are onlysupported in power9 and power10.Signed-off-by: Madhavan Srinivasan [mpe: Read PVR directly rather than using /proc/cpuinfo]Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20220127072012.662451-4-kjain@linux.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/include/reg.h

828ca432 - selftests/powerpc: Fix pkey access right updates

Thu, 04 Jun 2020 12:56:08 +0000

selftests/powerpc: Fix pkey access right updatesThe Power ISA mandates that all writes to the AuthorityMask Register (AMR) must always be preceded as well assucceeded by a context synchronizing instruction.This makes sure that the tests follow this requirementwhen attempting to update a pkey's access rights.Signed-off-by: Sandipan Das Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200604125610.649668-2-sandipan@linux.ibm.com List of files: /linux-6.15/tools/testing/selftests/powerpc/include/reg.h

f50a7f3d - treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191

Tue, 28 May 2019 16:57:18 +0000

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191Based on 1 normalized pattern(s): licensed under gplv2extracted by the scancode license scanner the SPDX license identifier GPL-2.0-onlyhas been chosen to replace the boilerplate/reference in 99 file(s).Signed-off-by: Thomas Gleixner Reviewed-by: Alexios Zavras Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Reviewed-by: Steve Winslow Cc: linux-spdx@vger.kernel.orgLink: https://lkml.kernel.org/r/20190528170027.163048684@linutronix.deSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/tools/testing/selftests/powerpc/include/reg.h

83e367f9 - selftests/powerpc: Add a signal fuzzer selftest

Thu, 17 Jan 2019 17:01:54 +0000

selftests/powerpc: Add a signal fuzzer selftestThis is a new selftest that raises SIGUSR1 signals and handles it in aset of different ways, trying to create different scenario for testingpurpose.This test works raising a signal and calling sigreturn interleavedwith TM operations, as starting, suspending and terminating atransaction. The test depends on random numbers, and, based on them,it sets different TM states.Other than that, the test fills out the user context struct that ispassed to the sigreturn system call with random data, in order to makesure that the signal handler syscall can handle different and invalidstates properly.This selftest has command line parameters to control what kind oftests the user wants to run, as for example, if a transaction shouldbe started prior to signal being raised, or, after the signal beingraised and before the sigreturn. If no parameter is given, the defaultis enabling all options.This test does not check if the user context is being read and setproperly by the kernel. Its purpose, at this time, is basicallyguaranteeing that the kernel does not crash on invalid scenarios.Signed-off-by: Breno Leitao Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/include/reg.h

a65329aa - selftests/powerpc: New TM signal self test

Tue, 08 Jan 2019 11:31:21 +0000

selftests/powerpc: New TM signal self testA new self test that forces MSR[TS] to be set without calling any TMinstruction. This test also tries to cause a page fault at a signalhandler, exactly between MSR[TS] set and tm_recheckpoint(), forcingthread->texasr to be rewritten with TEXASR[FS] = 0, which will cause a BUGwhen tm_recheckpoint() is called.This test is not deterministic, since it is hard to guarantee that the pageaccess will cause a page fault. In order to force more page faults atsignal context, the signal handler and the ucontext are being mapped into aMADV_DONTNEED memory chunks.Tests have shown that the bug could be exposed with few interactions in abuggy kernel. This test is configured to loop 5000x, having a good chanceto hit the kernel issue in just one run. This self test takes less thantwo seconds to run.This test uses set/getcontext because the kernel will recheckpointzeroed structures, causing the test to segfault, which is undesired becausethe test needs to rerun, so, there is a signal handler for SIGSEGV whichwill restart the test.v2: Uses the MADV_DONTNEED memory advicev3: Fix memcpy and 32-bits compilationv4: Does not define unused macrosSigned-off-by: Breno Leitao Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/include/reg.h

b7683fc6 - selftests/powerpc: Add a test of wild bctr

Tue, 24 Jul 2018 05:53:22 +0000

selftests/powerpc: Add a test of wild bctrThis tests that a bctr (Branch to counter and link), ie. a functioncall, to a wildly out-of-bounds address is handled correctly.Some old kernel versions didn't handle it correctly, see eg: "powerpc/slb: Force a full SLB flush when we insert for a bad EA" https://lists.ozlabs.org/pipermail/linuxppc-dev/2017-April/157397.htmlSigned-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/include/reg.h

1f7256e7 - selftests/powerpc: Add ptrace tests for Protection Key registers

Fri, 25 May 2018 02:11:44 +0000

selftests/powerpc: Add ptrace tests for Protection Key registersThis test exercises read and write access to the AMR, IAMR and UAMOR.Signed-off-by: Thiago Jung Bauermann [mpe: Simplify make rule]Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/include/reg.h

f666ad41 - selftests/powerpc: Add ptrace tests for GPR/FPR registers

Fri, 30 Sep 2016 02:32:52 +0000

selftests/powerpc: Add ptrace tests for GPR/FPR registersThis patch adds ptrace interface test for GPR/FPR registers.This adds ptrace interface based helper functions related toGPR/FPR access and some assembly helper functions related toGPR/FPR registers.Signed-off-by: Anshuman Khandual Signed-off-by: Simon Guo [mpe: Add #defines for the new note types when headers don't define them]Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/include/reg.h

15ec3997 - selftests/powerpc: Move shared headers into new include dir

Fri, 30 Sep 2016 02:32:51 +0000

selftests/powerpc: Move shared headers into new include dirThere are some functions, especially register related, which canbe shared across multiple selftests/powerpc test directories.This patch creates a new include directory to store those sharedfiles, so that the file layout becomes more neat.Signed-off-by: Simon Guo [mpe: Reworked to move the headers only]Signed-off-by: Michael Ellerman List of files: /linux-6.15/tools/testing/selftests/powerpc/include/reg.h