diff options
| author |   Julien Thierry <julien.thierry@arm.com> | 2019-01-31 14:58:46 +0000 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2019-02-06 10:05:18 +0000 |
| commit | 133d05186325ce04494ea6488a6b86e50a446c12 (patch) | |
| tree | 3d9b43fc48c46a1d94978aa6e20dfaae32920cdc /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | arm64: ptrace: Provide definitions for PMR values (diff) | |
| download | linux-dev-133d05186325ce04494ea6488a6b86e50a446c12.tar.xz linux-dev-133d05186325ce04494ea6488a6b86e50a446c12.zip | |
arm64: Make PMR part of task context
In order to replace PSR.I interrupt disabling/enabling with ICC_PMR_EL1
interrupt masking, ICC_PMR_EL1 needs to be saved/restored when
taking/returning from an exception. This mimics the way hardware saves
and restores PSR.I bit in spsr_el1 for exceptions and ERET.
Add PMR to the registers to save in the pt_regs struct upon kernel entry,
and restore it before ERET. Also, initialize it to a sane value when
creating new tasks.
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions