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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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71fff5e6ca
This patch converts the x86_cpu_to_apicid array to be a per cpu variable. This saves sizeof(apicid) * NR unused cpus. Access is mostly from startup and CPU HOTPLUG functions. MP_processor_info() is one of the functions that require access to the x86_cpu_to_apicid array before the per_cpu data area is setup. For this case, a pointer to the __initdata array is initialized in setup_arch() and removed in smp_prepare_cpus() after the per_cpu data area is initialized. A second change is included to change the initial array value of ARCH i386 from 0xff to BAD_APICID to be consistent with ARCH x86_64. Signed-off-by: Mike Travis <travis@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: Christoph Lameter <clameter@sgi.com> Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
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| .. | ||
| boot_ioremap_32.c | ||
| discontig_32.c | ||
| extable_32.c | ||
| extable_64.c | ||
| fault_32.c | ||
| fault_64.c | ||
| highmem_32.c | ||
| hugetlbpage.c | ||
| init_32.c | ||
| init_64.c | ||
| ioremap_32.c | ||
| ioremap_64.c | ||
| k8topology_64.c | ||
| Makefile | ||
| Makefile_32 | ||
| Makefile_64 | ||
| mmap_32.c | ||
| mmap_64.c | ||
| numa_64.c | ||
| pageattr_32.c | ||
| pageattr_64.c | ||
| pgtable_32.c | ||
| srat_64.c | ||