BMC/Intel-BMC/linux.git/tools/testing/selftests/powerpc/pmu/event.c, branch dev Intel OpenBMC Linux kernel source tree (mirror) https://git.radix-linux.su/BMC/Intel-BMC/linux.git/atom?h=dev 2014-06-11T07:03:58+00:00 selftests/powerpc: Add tests of PMU EBBs 2014-06-11T07:03:58+00:00 Michael Ellerman mpe@ellerman.id.au 2014-06-10T12:23:10+00:00 urn:sha1:3752e453f6bafd78e5586cc2b2e33ee4b6e1566d 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> selftests: Add test of PMU instruction counting on powerpc 2013-08-14T04:57:10+00:00 Michael Ellerman michael@ellerman.id.au 2013-08-06T07:42:37+00:00 urn:sha1:cb96143defbd5516c351595d56b608ed915b525e 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>