1. 27 Aug, 2019 13 commits
  2. 26 Aug, 2019 2 commits
    • Gustavo Romero's avatar
      selftests/powerpc: Retry on host facility unavailable · 6652bf64
      Gustavo Romero authored
      TM test tm-unavailable must take into account aborts due to host aborting
      a transactin because of a facility unavailable exception, just like it
      already does for aborts on reschedules (TM_CAUSE_KVM_RESCHED).
      Reported-by: default avatarDesnes A. Nunes do Rosario <desnesn@linux.ibm.com>
      Tested-by: default avatarDesnes A. Nunes do Rosario <desnesn@linux.ibm.com>
      Signed-off-by: default avatarGustavo Romero <gromero@linux.vnet.ibm.com>
      Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
      Link: https://lore.kernel.org/r/1566341651-19747-1-git-send-email-gromero@linux.vnet.ibm.com
      6652bf64
    • Gustavo Romero's avatar
      selftests/powerpc: Fix and enhance TM signal context tests · 9d535e20
      Gustavo Romero authored
      Currently TM signal context tests for GPR, FPR, VMX, and VSX registers
      print wrong register numbers (wrongly starting from register 0 instead
      of the first register in the non-volatile subset). Besides it the
      output when a mismatch happens is poor giving not much information
      about which context and which register mismatches, because it prints
      both contexts at the same time and not a comparison between the value
      that mismatches and the value expected and, moreover, it stops
      printing on the first mismatch, but it's important to know if there
      are other mismatches happening beyond the first one.
      
      For instance, this is the current output when a mismatch happens:
      
        test: tm_signal_context_chk_gpr
        tags: git_version:v5.2-8249-g02e970fae465-dirty
        Failed on 0 GPR 1 or 18446744073709551615
        failure: tm_signal_context_chk_gpr
      
        test: tm_signal_context_chk_fpu
        tags: git_version:v5.2-8248-g09c289e3ef80
        Failed on 0 FP -1 or -1
        failure: tm_signal_context_chk_fpu
      
        test: tm_signal_context_chk_vmx
        tags: git_version:v5.2-8248-g09c289e3ef80
        Failed on 0 vmx 0xfffffffffffffffefffffffdfffffffc vs 0xfffffffffffffffefffffffdfffffffc
        failure: tm_signal_context_chk_vmx
      
        test: tm_signal_context_chk_vsx
        tags: git_version:v5.2-8248-g09c289e3ef80
        Failed on 0 vsx 0xfffffffffefffffffdfffffffcffffff vs 0xfffffffffefffffffdfffffffcffffff
        failure: tm_signal_context_chk_vsx
      
      This commit fixes the register numbers printed and enhances the error
      output by providing a full list of mismatching registers separated by
      the context (non-speculative or speculative context), for example:
      
        test: tm_signal_context_chk_gpr
        tags: git_version:v5.2-8249-g02e970fae465-dirty
        GPR14 (1st context) == 1 instead of -1 (expected)
        GPR15 (1st context) == 2 instead of -2 (expected)
        GPR14 (2nd context) == 0 instead of 18446744073709551615 (expected)
        GPR15 (2nd context) == 0 instead of 18446744073709551614 (expected)
        failure: tm_signal_context_chk_gpr
      
        test: tm_signal_context_chk_fpu
        tags: git_version:v5.2-8249-g02e970fae465-dirty
        FPR14 (1st context) == -1 instead of 1 (expected)
        FPR15 (1st context) == -2 instead of 2 (expected)
        failure: tm_signal_context_chk_fpu
      
        test: tm_signal_context_chk_vmx
        tags: git_version:v5.2-8249-g02e970fae465-dirty
        VMX20 (1st context) == 0xfffffffffffffffefffffffdfffffffc instead of 0x00000001000000020000000300000004 (expected)
        VMX21 (1st context) == 0xfffffffbfffffffafffffff9fffffff8 instead of 0x00000005000000060000000700000008 (expected)
        failure: tm_signal_context_chk_vmx
      
        test: tm_signal_context_chk_vsx
        tags: git_version:v5.2-8249-g02e970fae465-dirty
        VSX20 (1st context) == 0xfffffffffefffffffdfffffffcffffff instead of 0x00000001000000020000000300000004 (expected)
        VSX21 (1st context) == 0xfbfffffffafffffff9fffffff8ffffff instead of 0x00000005000000060000000700000008 (expected)
        failure: tm_signal_context_chk_vsx
      
      Finally, this commit adds comments to the tests in the hope that it
      will help people not so familiar with TM understand the tests.
      Signed-off-by: default avatarGustavo Romero <gromero@linux.ibm.com>
      Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
      Link: https://lore.kernel.org/r/20190814205211.24840-1-gromero@linux.ibm.com
      9d535e20
  3. 22 Aug, 2019 16 commits
  4. 21 Aug, 2019 7 commits
  5. 20 Aug, 2019 2 commits