Athira Rajeev d81090ed44 selftests/powerpc: EBB selftest for MMCR0 control for PMU SPRs in ISA v3.1 ... With the MMCR0 control bit (PMCCEXT) in ISA v3.1, read access to group B registers is restricted when MMCR0 PMCC=0b00. In other platforms (like power9), the older behaviour works where group B PMU SPRs are readable. Patch creates a selftest which verifies that the test takes a SIGILL when attempting to read PMU registers via helper function "dump_ebb_state" for ISA v3.1. Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Tested-by: Nageswara R Sastry <rnsastry@linux.ibm.com <mailto:rnsastry@linux.ibm.com>> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/1621950703-1532-3-git-send-email-atrajeev@linux.vnet.ibm.com		2021-06-17 00:09:11 +10:00
..
ebb	selftests/powerpc: EBB selftest for MMCR0 control for PMU SPRs in ISA v3.1	2021-06-17 00:09:11 +10:00
.gitignore	selftests/powerpc: Add a test of counting larx/stcx	2020-05-15 11:58:55 +10:00
count_instructions.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191	2019-05-30 11:29:21 -07:00
count_stcx_fail.c	selftests/powerpc: Include asm/cputable.h from utils.h	2020-09-08 22:23:59 +10:00
event.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191	2019-05-30 11:29:21 -07:00
event.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191	2019-05-30 11:29:21 -07:00
l3_bank_test.c	selftests/powerpc: Skip L3 bank test on older CPUs	2020-09-08 22:24:08 +10:00
lib.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 191	2019-05-30 11:29:21 -07:00
lib.h	selftests/powerpc: Add test of stack expansion logic	2020-07-29 21:02:11 +10:00
loop.S	selftests/powerpc: Add a test of counting larx/stcx	2020-05-15 11:58:55 +10:00
Makefile	selftests/powerpc: Add a test of counting larx/stcx	2020-05-15 11:58:55 +10:00
per_event_excludes.c	selftests/powerpc: Include asm/cputable.h from utils.h	2020-09-08 22:23:59 +10:00