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| author | Anshuman Khandual <[email protected]> | 2024-12-11 06:54:25 +0000 |
|---|---|---|
| committer | Will Deacon <[email protected]> | 2024-12-19 17:01:07 +0000 |
| commit | 1e4a5e3679cc4d037982bfc822d939d5ba954e70 (patch) | |
| tree | 0b27a53881d0118c5f677e88736c8c44aaae35cf /net/unix/garbage.c | |
| parent | docs: arm64: Document EL3 requirements for cpu debug architecture (diff) | |
| download | kernel-1e4a5e3679cc4d037982bfc822d939d5ba954e70.tar.gz kernel-1e4a5e3679cc4d037982bfc822d939d5ba954e70.zip | |
docs: arm64: Document EL3 requirements for FEAT_PMUv3
This documents EL3 requirements for FEAT_PMUv3. The register field MDCR_EL3
.TPM needs to be cleared for accesses into PMU registers without any trap
being generated into EL3. PMUv3 registers like PMCCFILTR_EL0, PMCCNTR_EL0
PMCNTENCLR_EL0, PMCNTENSET_EL0, PMCR_EL0, PMEVCNTR<n>_EL0, PMEVTYPER<n>_EL0
etc are already being accessed for perf HW PMU implementation.
Cc: Catalin Marinas <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Anshuman Khandual <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>
Diffstat (limited to 'net/unix/garbage.c')
0 files changed, 0 insertions, 0 deletions