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base-nova: Changed mapping of cores so that for each cores x and y, it is guaranteed that if x is greater than y, the NUMA ID of x is always greater than or equal to that of y.

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This commit is contained in:
Michael Mueller
2024-01-30 18:04:29 +01:00
parent 20be3b397f
commit 90fd2368d0
1 changed files with 38 additions and 19 deletions
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45
repos/base-nova/include/nova/syscall-generic.h
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@@ -36,6 +36,7 @@
#define _INCLUDE__NOVA__SYSCALL_GENERIC_H_
#include <nova/stdint.h>
#include <base/log.h>
namespace Nova {
@@ -71,6 +72,7 @@ namespace Nova {
NOVA_CORE_ALLOC = 0x13,
NOVA_CREATE_CELL= 0x14,
NOVA_CELL_CTRL = 0x15,
NOVA_CONS_CTRL = 0x16,
};
/**
@@ -189,12 +191,28 @@ namespace Nova {
return desc ? desc->flags & 0x1 : false;
}
unsigned numa_nodes() const {
unsigned node_num = 1;
unsigned long nodes = 0x0;
unsigned long last_node = 0;
for (unsigned cpu = 0; cpu < cpu_max(); cpu++) {
Cpu_desc const *c = cpu_desc_of_cpu(cpu);
if (c->numa_id != last_node && !(nodes & (1<<c->numa_id))) {
node_num++;
nodes |= (1 << c->numa_id);
}
}
return node_num;
}
/**
* Map kernel cpu ids to virtual cpu ids.
*/
bool remap_cpu_ids(uint8_t *map_cpus, uint8_t *cpu_numa_map, unsigned const boot_cpu) const {
unsigned const num_cpus = cpus();
unsigned cpu_i = 0;
unsigned const num_nodes = numa_nodes();
/* assign boot cpu ever the virtual cpu id 0 */
Cpu_desc const * const boot = cpu_desc_of_cpu(boot_cpu);
@@ -205,30 +223,23 @@ namespace Nova {
if (cpu_i >= num_cpus)
return true;
/* assign remaining cores and afterwards all threads to the ids */
for (uint8_t package = 0; package < 255; package++) {
for (uint8_t core = 0; core < 255; core++) {
for (uint8_t thread = 0; thread < 255; thread++) {
for (unsigned i = 0; i < cpu_max(); i++) {
for (uint8_t node = 0; node < num_nodes; node++) {
for (unsigned i = 0; i < num_cpus; i++) {
if (i == boot_cpu || !is_cpu_enabled(i))
continue;
Cpu_desc const * const c = cpu_desc_of_cpu(i);
if (!c)
continue;
if (!(c->package == package && c->core == core &&
c->thread == thread))
Cpu_desc const *c = cpu_desc_of_cpu(i);
if (!(c->numa_id == node))
continue;
cpu_numa_map[i] = c->numa_id;
map_cpus[cpu_i++] = (uint8_t)i;
if (cpu_i >= num_cpus)
return true;
}
}
}
}
return false;
}
@@ -857,5 +868,13 @@ namespace Nova {
SM_SEL_EC = 0x1d, /* convention on Genode */
};
/**
* Console operations
*/
enum Cons_op
{
LOCK = 0,
UNLOCK = 1,
};
}
#endif /* _INCLUDE__NOVA__SYSCALL_GENERIC_H_ */