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linux_dsm_epyc7002/tools/testing/selftests/powerpc/copyloops/stubs.S

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selftests/powerpc/64: Test exception cases in copy_tofrom_user This adds a set of test cases to test the behaviour of copy_tofrom_user when exceptions are encountered accessing the source or destination. Currently, copy_tofrom_user does not always copy as many bytes as possible when an exception occurs on a store to the destination, and that is reflected in failures in these tests. Based on a test program from Anton Blanchard. [paulus@ozlabs.org - test all three paths, wrote commit description, made EX_TABLE create an exception table.] Signed-off-by: Paul Mackerras <paulus@ozlabs.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-08-03 17:13:05 +07:00
#include <asm/ppc_asm.h>
FUNC_START(enter_vmx_usercopy)
li r3,1
blr
FUNC_START(exit_vmx_usercopy)
li r3,0
blr
FUNC_START(enter_vmx_ops)
li r3,1
blr
FUNC_START(exit_vmx_ops)
blr
FUNC_START(__copy_tofrom_user_base)
blr
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