aboutsummaryrefslogtreecommitdiffstats
path: root/tools/testing/selftests/powerpc/pmu (follow)
AgeCommit message (Collapse)AuthorFilesLines
2014-06-11selftests/powerpc: Add tests of PMU EBBsMichael Ellerman34-4/+3913
The Power8 Performance Monitor Unit (PMU) has a new feature called Event Based Branches (EBB). This commit adds tests of the kernel API for using EBBs. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2014-06-11selftests/powerpc: Fix instruction loop for ABIv2 (LE)Michael Ellerman1-38/+35
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-08-14selftests: Add test of PMU instruction counting on powerpcMichael Ellerman5-0/+348
This commit adds a test of instruction counting using the PMU on powerpc. Although the bulk of the code is architecture agnostic, the code needs to run a precisely sized loop which is implemented in assembler. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>