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| author | Sudeep Holla <sudeep.holla@arm.com> | 2022-07-04 12:16:05 +0200 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2022-07-04 17:23:23 +0200 |
| commit | 7128af87c7f1c30cd6cebe0b012cc25872c689e2 (patch) | |
| tree | 5989dbb9bab791b4048d02c764abf0aa91032a5e /drivers/acpi/pptt.c | |
| parent | arch_topology: Warn that topology for nested clusters is not supported (diff) | |
| download | linux-7128af87c7f1c30cd6cebe0b012cc25872c689e2.tar.xz linux-7128af87c7f1c30cd6cebe0b012cc25872c689e2.zip | |
ACPI: Remove the unused find_acpi_cpu_cache_topology()
The sole user of this find_acpi_cpu_cache_topology() was arm64 topology
which is now consolidated into the generic arch_topology without the need
of this function.
Drop the unused function find_acpi_cpu_cache_topology().
Link: https://lore.kernel.org/r/20220704101605.1318280-22-sudeep.holla@arm.com
Cc: Rafael J. Wysocki <rafael@kernel.org>
Reported-by: Ionela Voinescu <ionela.voinescu@arm.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'drivers/acpi/pptt.c')
| -rw-r--r-- | drivers/acpi/pptt.c | 37 |
1 files changed, 0 insertions, 37 deletions
diff --git a/drivers/acpi/pptt.c b/drivers/acpi/pptt.c index 763f021d45e6..dd3222a15c9c 100644 --- a/drivers/acpi/pptt.c +++ b/drivers/acpi/pptt.c @@ -692,43 +692,6 @@ int find_acpi_cpu_topology(unsigned int cpu, int level) } /** - * find_acpi_cpu_cache_topology() - Determine a unique cache topology value - * @cpu: Kernel logical CPU number - * @level: The cache level for which we would like a unique ID - * - * Determine a unique ID for each unified cache in the system - * - * Return: -ENOENT if the PPTT doesn't exist, or the CPU cannot be found. - * Otherwise returns a value which represents a unique topological feature. - */ -int find_acpi_cpu_cache_topology(unsigned int cpu, int level) -{ - struct acpi_table_header *table; - struct acpi_pptt_cache *found_cache; - acpi_status status; - u32 acpi_cpu_id = get_acpi_id_for_cpu(cpu); - struct acpi_pptt_processor *cpu_node = NULL; - int ret = -1; - - status = acpi_get_table(ACPI_SIG_PPTT, 0, &table); - if (ACPI_FAILURE(status)) { - acpi_pptt_warn_missing(); - return -ENOENT; - } - - found_cache = acpi_find_cache_node(table, acpi_cpu_id, - CACHE_TYPE_UNIFIED, - level, - &cpu_node); - if (found_cache) - ret = ACPI_PTR_DIFF(cpu_node, table); - - acpi_put_table(table); - - return ret; -} - -/** * find_acpi_cpu_topology_package() - Determine a unique CPU package value * @cpu: Kernel logical CPU number * |