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| author |   Ionela Voinescu <ionela.voinescu@arm.com> | 2020-11-06 12:53:32 +0000 |
|---|---|---|
| committer |   Catalin Marinas <catalin.marinas@arm.com> | 2020-11-13 20:05:10 +0000 |
| commit | 4b9cf23c179a27659a95c094ace658bb92f146e5 (patch) | |
| tree | 6f58d2c1e5ec88249d376f6af9e0accb39512183 /arch/arm64/include/asm/topology.h | |
| parent | Linux 5.10-rc3 (diff) | |
| download | linux-dev-4b9cf23c179a27659a95c094ace658bb92f146e5.tar.xz linux-dev-4b9cf23c179a27659a95c094ace658bb92f146e5.zip | |
arm64: wrap and generalise counter read functions
In preparation for other uses of Activity Monitors (AMU) cycle counters,
place counter read functionality in generic functions that can reused:
read_corecnt() and read_constcnt().
As a result, implement update_freq_counters_refs() to replace
init_cpu_freq_invariance_counters() and both initialise and update
the per-cpu reference variables.
Signed-off-by: Ionela Voinescu <ionela.voinescu@arm.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20201106125334.21570-2-ionela.voinescu@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/topology.h')
| -rw-r--r-- | arch/arm64/include/asm/topology.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/topology.h b/arch/arm64/include/asm/topology.h index 11a465243f66..3b8dca4eb08d 100644 --- a/arch/arm64/include/asm/topology.h +++ b/arch/arm64/include/asm/topology.h @@ -16,12 +16,14 @@ int pcibus_to_node(struct pci_bus *bus); #include <linux/arch_topology.h> +void update_freq_counters_refs(void); +void topology_scale_freq_tick(void); + #ifdef CONFIG_ARM64_AMU_EXTN /* * Replace task scheduler's default counter-based * frequency-invariance scale factor setting. */ -void topology_scale_freq_tick(void); #define arch_scale_freq_tick topology_scale_freq_tick #endif /* CONFIG_ARM64_AMU_EXTN */ |