#include <asm/hw_irq.h>
#include <asm/stackprotector.h>
#include <asm/sev.h>
+#include <asm/spec-ctrl.h>
/* representing HT siblings of each logical CPU */
DEFINE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_sibling_map);
*/
static DEFINE_PER_CPU_ALIGNED(struct mwait_cpu_dead, mwait_cpu_dead);
-/* Logical package management. We might want to allocate that dynamically */
+/* Logical package management. */
+struct logical_maps {
+ u32 phys_pkg_id;
+ u32 phys_die_id;
+ u32 logical_pkg_id;
+ u32 logical_die_id;
+};
+
+/* Temporary workaround until the full topology mechanics is in place */
+static DEFINE_PER_CPU_READ_MOSTLY(struct logical_maps, logical_maps) = {
+ .phys_pkg_id = U32_MAX,
+ .phys_die_id = U32_MAX,
+};
+
unsigned int __max_logical_packages __read_mostly;
EXPORT_SYMBOL(__max_logical_packages);
static unsigned int logical_packages __read_mostly;
cpu_init();
fpu__init_cpu();
- rcu_cpu_starting(raw_smp_processor_id());
+ rcutree_report_cpu_starting(raw_smp_processor_id());
x86_cpuinit.early_percpu_clock_init();
ap_starting();
int cpu;
for_each_possible_cpu(cpu) {
- struct cpuinfo_x86 *c = &cpu_data(cpu);
-
- if (c->initialized && c->phys_proc_id == phys_pkg)
- return c->logical_proc_id;
+ if (per_cpu(logical_maps.phys_pkg_id, cpu) == phys_pkg)
+ return per_cpu(logical_maps.logical_pkg_id, cpu);
}
return -1;
}
*/
static int topology_phys_to_logical_die(unsigned int die_id, unsigned int cur_cpu)
{
- int cpu, proc_id = cpu_data(cur_cpu).phys_proc_id;
+ int cpu, proc_id = cpu_data(cur_cpu).topo.pkg_id;
for_each_possible_cpu(cpu) {
- struct cpuinfo_x86 *c = &cpu_data(cpu);
-
- if (c->initialized && c->cpu_die_id == die_id &&
- c->phys_proc_id == proc_id)
- return c->logical_die_id;
+ if (per_cpu(logical_maps.phys_pkg_id, cpu) == proc_id &&
+ per_cpu(logical_maps.phys_die_id, cpu) == die_id)
+ return per_cpu(logical_maps.logical_die_id, cpu);
}
return -1;
}
cpu, pkg, new);
}
found:
- cpu_data(cpu).logical_proc_id = new;
+ per_cpu(logical_maps.phys_pkg_id, cpu) = pkg;
+ per_cpu(logical_maps.logical_pkg_id, cpu) = new;
+ cpu_data(cpu).topo.logical_pkg_id = new;
return 0;
}
/**
cpu, die, new);
}
found:
- cpu_data(cpu).logical_die_id = new;
+ per_cpu(logical_maps.phys_die_id, cpu) = die;
+ per_cpu(logical_maps.logical_die_id, cpu) = new;
+ cpu_data(cpu).topo.logical_die_id = new;
return 0;
}
*c = boot_cpu_data;
c->cpu_index = id;
- topology_update_package_map(c->phys_proc_id, id);
- topology_update_die_map(c->cpu_die_id, id);
+ topology_update_package_map(c->topo.pkg_id, id);
+ topology_update_die_map(c->topo.die_id, id);
c->initialized = true;
}
if (boot_cpu_has(X86_FEATURE_TOPOEXT)) {
int cpu1 = c->cpu_index, cpu2 = o->cpu_index;
- if (c->phys_proc_id == o->phys_proc_id &&
- c->cpu_die_id == o->cpu_die_id &&
- per_cpu(cpu_llc_id, cpu1) == per_cpu(cpu_llc_id, cpu2)) {
- if (c->cpu_core_id == o->cpu_core_id)
+ if (c->topo.pkg_id == o->topo.pkg_id &&
+ c->topo.die_id == o->topo.die_id &&
+ per_cpu_llc_id(cpu1) == per_cpu_llc_id(cpu2)) {
+ if (c->topo.core_id == o->topo.core_id)
return topology_sane(c, o, "smt");
- if ((c->cu_id != 0xff) &&
- (o->cu_id != 0xff) &&
- (c->cu_id == o->cu_id))
+ if ((c->topo.cu_id != 0xff) &&
+ (o->topo.cu_id != 0xff) &&
+ (c->topo.cu_id == o->topo.cu_id))
return topology_sane(c, o, "smt");
}
- } else if (c->phys_proc_id == o->phys_proc_id &&
- c->cpu_die_id == o->cpu_die_id &&
- c->cpu_core_id == o->cpu_core_id) {
+ } else if (c->topo.pkg_id == o->topo.pkg_id &&
+ c->topo.die_id == o->topo.die_id &&
+ c->topo.core_id == o->topo.core_id) {
return topology_sane(c, o, "smt");
}
static bool match_die(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
{
- if (c->phys_proc_id == o->phys_proc_id &&
- c->cpu_die_id == o->cpu_die_id)
+ if (c->topo.pkg_id == o->topo.pkg_id &&
+ c->topo.die_id == o->topo.die_id)
return true;
return false;
}
int cpu1 = c->cpu_index, cpu2 = o->cpu_index;
/* If the arch didn't set up l2c_id, fall back to SMT */
- if (per_cpu(cpu_l2c_id, cpu1) == BAD_APICID)
+ if (per_cpu_l2c_id(cpu1) == BAD_APICID)
return match_smt(c, o);
/* Do not match if L2 cache id does not match: */
- if (per_cpu(cpu_l2c_id, cpu1) != per_cpu(cpu_l2c_id, cpu2))
+ if (per_cpu_l2c_id(cpu1) != per_cpu_l2c_id(cpu2))
return false;
return topology_sane(c, o, "l2c");
*/
static bool match_pkg(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
{
- if (c->phys_proc_id == o->phys_proc_id)
+ if (c->topo.pkg_id == o->topo.pkg_id)
return true;
return false;
}
bool intel_snc = id && id->driver_data;
/* Do not match if we do not have a valid APICID for cpu: */
- if (per_cpu(cpu_llc_id, cpu1) == BAD_APICID)
+ if (per_cpu_llc_id(cpu1) == BAD_APICID)
return false;
/* Do not match if LLC id does not match: */
- if (per_cpu(cpu_llc_id, cpu1) != per_cpu(cpu_llc_id, cpu2))
+ if (per_cpu_llc_id(cpu1) != per_cpu_llc_id(cpu2))
return false;
/*
};
#endif
/*
- * When there is NUMA topology inside the package skip the DIE domain
+ * When there is NUMA topology inside the package skip the PKG domain
* since the NUMA domains will auto-magically create the right spanning
* domains based on the SLIT.
*/
if (!x86_has_numa_in_package) {
x86_topology[i++] = (struct sched_domain_topology_level){
- cpu_cpu_mask, x86_die_flags, SD_INIT_NAME(DIE)
+ cpu_cpu_mask, x86_die_flags, SD_INIT_NAME(PKG)
};
}
/*
* Wake up AP by INIT, INIT, STARTUP sequence.
*/
-static void send_init_sequence(int phys_apicid)
+static void send_init_sequence(u32 phys_apicid)
{
int maxlvt = lapic_get_maxlvt();
/*
* Wake up AP by INIT, INIT, STARTUP sequence.
*/
-static int wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
+static int wakeup_secondary_cpu_via_init(u32 phys_apicid, unsigned long start_eip)
{
unsigned long send_status = 0, accept_status = 0;
int num_starts, j, maxlvt;
* Returns zero if startup was successfully sent, else error code from
* ->wakeup_secondary_cpu.
*/
-static int do_boot_cpu(int apicid, int cpu, struct task_struct *idle)
+static int do_boot_cpu(u32 apicid, int cpu, struct task_struct *idle)
{
unsigned long start_ip = real_mode_header->trampoline_start;
int ret;
int native_kick_ap(unsigned int cpu, struct task_struct *tidle)
{
- int apicid = apic->cpu_present_to_apicid(cpu);
+ u32 apicid = apic->cpu_present_to_apicid(cpu);
int err;
lockdep_assert_irqs_enabled();
cpumask_clear(topology_sibling_cpumask(cpu));
cpumask_clear(topology_core_cpumask(cpu));
cpumask_clear(topology_die_cpumask(cpu));
- c->cpu_core_id = 0;
+ c->topo.core_id = 0;
c->booted_cores = 0;
cpumask_clear_cpu(cpu, cpu_sibling_setup_mask);
recompute_smt_state();
native_halt();
}
+/*
+ * native_play_dead() is essentially a __noreturn function, but it can't
+ * be marked as such as the compiler may complain about it.
+ */
void native_play_dead(void)
{
+ if (cpu_feature_enabled(X86_FEATURE_KERNEL_IBRS))
+ __update_spec_ctrl(0);
+
play_dead_common();
tboot_shutdown(TB_SHUTDOWN_WFS);
projects / thirdparty / linux.git / blobdiff