diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2024-02-13 22:06:16 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-02-16 15:51:32 +0100 |
| commit | 89b0f15f408f7c4ee98c1ec4c3224852fcbc3274 (patch) | |
| tree | c1260ecb1ae8fb3bdc36ff6bdf6ad1b294abf684 /Documentation/arch | |
| parent | fd43b8ae76e903c76f14d06eb939449bcc3f614f (diff) | |
x86/cpu/topology: Get rid of cpuinfo::x86_max_cores
Now that __num_cores_per_package and __num_threads_per_package are
available, cpuinfo::x86_max_cores and the related math all over the place
can be replaced with the ready to consume data.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Michael Kelley <mhklinux@outlook.com>
Tested-by: Sohil Mehta <sohil.mehta@intel.com>
Link: https://lore.kernel.org/r/20240213210253.176147806@linutronix.de
Diffstat (limited to 'Documentation/arch')
| -rw-r--r-- | Documentation/arch/x86/topology.rst | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/Documentation/arch/x86/topology.rst b/Documentation/arch/x86/topology.rst index 08ebf9edbfc1..7352ab89a55a 100644 --- a/Documentation/arch/x86/topology.rst +++ b/Documentation/arch/x86/topology.rst @@ -47,17 +47,21 @@ AMD nomenclature for package is 'Node'. Package-related topology information in the kernel: - - cpuinfo_x86.x86_max_cores: + - topology_num_threads_per_package() - The number of cores in a package. This information is retrieved via CPUID. + The number of threads in a package. - - cpuinfo_x86.x86_max_dies: + - topology_num_cores_per_package() - The number of dies in a package. This information is retrieved via CPUID. + The number of cores in a package. + + - topology_max_dies_per_package() + + The maximum number of dies in a package. - cpuinfo_x86.topo.die_id: - The physical ID of the die. This information is retrieved via CPUID. + The physical ID of the die. - cpuinfo_x86.topo.pkg_id: @@ -96,16 +100,6 @@ are SMT- or CMT-type threads. AMDs nomenclature for a CMT core is "Compute Unit". The kernel always uses "core". -Core-related topology information in the kernel: - - - smp_num_siblings: - - The number of threads in a core. The number of threads in a package can be - calculated by:: - - threads_per_package = cpuinfo_x86.x86_max_cores * smp_num_siblings - - Threads ======= A thread is a single scheduling unit. It's the equivalent to a logical Linux |