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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-09-19 21:51:22 +0200 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-09-19 21:55:57 +0200 |
| commit | a76bc939142f61e615fcc39fc940961e39a26207 (patch) | |
| tree | 5224c805761fd68311de079f32b7c4ef0c613bf6 /configfrag.ac | |
| parent | b26973c8018b99bcf8fb071eb2aedc634039eea1 (diff) | |
smp: Add --enable-ncpus option and fix build
* configfrag.ac (--enable-ncpus): Add option to set $mach_ncpus.
* i386/i386/cpu_number.h (CPU_NUMBER, cpu_number): New macros, set to 0 for
now.
* i386/i386/db_interface.c (cpu_interrupt_to_db): New function.
* i386/i386/db_interface.h (cpu_interrupt_to_db): New declaration.
* i386/i386/mp_desc.c (int_stack_base): New array.
(intel_startCPU): New function.
* i386/i386at/model_dep.c: Include <i386/smp.h>
(int_stack_top, int_stack_base): Turn into arrays
(i386at_init): Update accesses accordingly.
* i386/i386at/model_dep.h (int_stack_top, int_stack_base, ON_INT_STACK):
Likewise.
* i386/intel/pmap.c (cpus_active, cpus_idle, cpu_update_needed): Add
variables.
* i386/intel/pmap.h (cpus_active, cpus_idle, cpu_update_needed): Mark
extern.
* kern/cpu_number.h: Include <machine/cpu_number.h>
* linux/dev/arch/i386/kernel/irq.c (local_bh_count, local_irq_count):
Hardcode to the address of intr_count. We will not use the Linux code in
SMP mode anyway.
Diffstat (limited to 'configfrag.ac')
| -rw-r--r-- | configfrag.ac | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/configfrag.ac b/configfrag.ac index 91d737ef..3c3ba3aa 100644 --- a/configfrag.ac +++ b/configfrag.ac @@ -45,7 +45,10 @@ AC_DEFINE([BOOTSTRAP_SYMBOLS], [0], [BOOTSTRAP_SYMBOLS]) # Multiprocessor support is still broken. AH_TEMPLATE([MULTIPROCESSOR], [set things up for a uniprocessor]) -mach_ncpus=1 +AC_ARG_ENABLE([ncpus], + AS_HELP_STRING([--enable-ncpus=N], [specify the maximum number of cpus to be supported]), + [mach_ncpus=$enable_ncpus], + [mach_ncpus=1]) AC_DEFINE_UNQUOTED([NCPUS], [$mach_ncpus], [number of CPUs]) [if [ $mach_ncpus -gt 1 ]; then] AC_DEFINE([MULTIPROCESSOR], [1], [set things up for a multiprocessor]) |