kernel/linux.git/tools/testing/selftests/powerpc/dscr, branch linux-4.4.y

selftests/powerpc: Add gitignore file for the new DSCR tests

2015-06-07T09:38:20+00:00

This patch adds .gitignore for all the newly added DSCR tests. Signed-off-by: Anshuman Khandual Signed-off-by: Michael Ellerman

selftests/powerpc: Add thread based stress test for DSCR sysfs interfaces

2015-06-07T09:38:18+00:00

This patch adds a test to update the system wide DSCR value repeatedly and then verifies that any thread on any given CPU on the system must be able to see the same DSCR value whether its is being read through the problem state based SPR or the privilege state based SPR. Signed-off-by: Anshuman Khandual Signed-off-by: Michael Ellerman

selftests/powerpc: Add test for all DSCR sysfs interfaces

2015-06-07T09:37:58+00:00

This test continuously updates the system wide DSCR default value in the sysfs interface and makes sure that the same is reflected across all the sysfs interfaces for each individual CPUs present on the system. Acked-by: Shuah Khan Signed-off-by: Anshuman Khandual Signed-off-by: Michael Ellerman

selftests/powerpc: Add test for DSCR inheritence across fork & exec

2015-06-07T09:37:31+00:00

This patch adds a test case to verify that the changed DSCR value inside any process would be inherited to it's child across the fork and exec system call. Acked-by: Shuah Khan Signed-off-by: Anshuman Khandual Signed-off-by: Anton Blanchard Signed-off-by: Michael Ellerman

selftests/powerpc: Add test for DSCR value inheritence across fork

2015-06-07T09:37:11+00:00

This patch adds a test to verify that the changed DSCR value inside any process would be inherited to it's child process across the fork system call. Acked-by: Shuah Khan Signed-off-by: Anshuman Khandual Signed-off-by: Anton Blanchard Signed-off-by: Michael Ellerman

selftests/powerpc: Add test for DSCR SPR numbers

2015-06-07T09:36:51+00:00

This patch adds a test which verifies that the DSCR privilege and problem state SPR read & write accesses while making sure that the results are always the same irrespective of which SPR number is being used. Acked-by: Shuah Khan Signed-off-by: Anshuman Khandual Signed-off-by: Anton Blanchard Signed-off-by: Michael Ellerman

selftests/powerpc: Add test for explicitly changing DSCR value

2015-06-07T09:36:08+00:00

This patch adds a test which modifies the DSCR using mtspr instruction and verifies the change using mfspr instruction. It uses both the privilege state SPR as well as the problem state SPR for the purpose. Acked-by: Shuah Khan Signed-off-by: Anshuman Khandual Signed-off-by: Anton Blanchard Signed-off-by: Michael Ellerman

selftests/powerpc: Add test for system wide DSCR default

2015-06-07T09:35:38+00:00

This patch adds a test case for the system wide DSCR default value, which when changed through it's sysfs interface must be visible to all threads reading DSCR either through the privilege state SPR or the problem state SPR. The DSCR value change should be immediate as well. Acked-by: Shuah Khan Signed-off-by: Anshuman Khandual Signed-off-by: Anton Blanchard Signed-off-by: Michael Ellerman