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| author | Anshuman Khandual <anshuman.khandual@arm.com> | 2024-12-11 09:54:24 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-12-19 20:01:07 +0300 |
| commit | 3e5be4e11aac40eb9d3ea6b5e79b7e95b0a6ebe5 (patch) | |
| tree | dbbdf2f0d2be986a3958c6b3ad14b2e7ef5f8dfb /tools/perf/scripts/python/gecko.py | |
| parent | fac04efc5c793dccbd07e2d59af9f90b7fc0dca4 (diff) | |
| download | linux-3e5be4e11aac40eb9d3ea6b5e79b7e95b0a6ebe5.tar.xz | |
docs: arm64: Document EL3 requirements for cpu debug architecture
This documents EL3 requirements for debug architecture. The register field
MDCR_EL3.TDA needs to be cleared for accesses into debug registers without
any trap being generated into EL3. CPU debug registers like DBGBCR<n>_EL1,
DBGBVR<n>_EL1, DBGWCR<n>_EL1, DBGWVR<n>_EL1 and MDSCR_EL1 are already being
accessed for HW breakpoint, watchpoint and debug monitor implementations on
the platform.
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20241211065425.1106683-2-anshuman.khandual@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/gecko.py')
0 files changed, 0 insertions, 0 deletions