diff mbox series

[06/30] x86/mpparse: Use new APIC registration function

Message ID 20240213210251.830955273@linutronix.de
State New
Headers
Series x86/apic: Rework APIC registration |

Commit Message

Thomas Gleixner Feb. 13, 2024, 9:05 p.m. UTC 
  From: Thomas Gleixner <tglx@linutronix.de>

Aside of switching over to the new interface, record the number of
registered CPUs locally, which allows to make num_processors and
disabled_cpus confined to the topology code.

No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>


---
 arch/x86/include/asm/mpspec.h  |    2 --
 arch/x86/kernel/cpu/topology.c |    2 +-
 arch/x86/kernel/mpparse.c      |   17 +++++++++--------
 3 files changed, 10 insertions(+), 11 deletions(-)
---
diff mbox series

Patch

--- a/arch/x86/include/asm/mpspec.h
+++ b/arch/x86/include/asm/mpspec.h
@@ -61,8 +61,6 @@  static inline void e820__memblock_alloc_
 #define mpparse_parse_smp_config	x86_init_noop
 #endif
 
-int generic_processor_info(int apicid);
-
 extern DECLARE_BITMAP(phys_cpu_present_map, MAX_LOCAL_APIC);
 
 static inline void reset_phys_cpu_present_map(u32 apicid)
--- a/arch/x86/kernel/cpu/topology.c
+++ b/arch/x86/kernel/cpu/topology.c
@@ -133,7 +133,7 @@  static void cpu_update_apic(int cpu, u32
 		cpu_mark_primary_thread(cpu, apicid);
 }
 
-int generic_processor_info(int apicid)
+static int generic_processor_info(int apicid)
 {
 	int cpu, max = nr_cpu_ids;
 
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -36,6 +36,8 @@ 
  * Checksum an MP configuration block.
  */
 
+static unsigned int num_procs __initdata;
+
 static int __init mpf_checksum(unsigned char *mp, int len)
 {
 	int sum = 0;
@@ -50,16 +52,15 @@  static void __init MP_processor_info(str
 {
 	char *bootup_cpu = "";
 
-	if (!(m->cpuflag & CPU_ENABLED)) {
-		disabled_cpus++;
+	topology_register_apic(m->apicid, CPU_ACPIID_INVALID, m->cpuflag & CPU_ENABLED);
+	if (!(m->cpuflag & CPU_ENABLED))
 		return;
-	}
 
 	if (m->cpuflag & CPU_BOOTPROCESSOR)
 		bootup_cpu = " (Bootup-CPU)";
 
 	pr_info("Processor #%d%s\n", m->apicid, bootup_cpu);
-	generic_processor_info(m->apicid);
+	num_procs++;
 }
 
 #ifdef CONFIG_X86_IO_APIC
@@ -236,9 +237,9 @@  static int __init smp_read_mpc(struct mp
 		}
 	}
 
-	if (!num_processors)
+	if (!num_procs && !acpi_lapic)
 		pr_err("MPTABLE: no processors registered!\n");
-	return num_processors;
+	return num_procs || acpi_lapic;
 }
 
 #ifdef CONFIG_X86_IO_APIC
@@ -529,8 +530,8 @@  static __init void mpparse_get_smp_confi
 	} else
 		BUG();
 
-	if (!early)
-		pr_info("Processors: %d\n", num_processors);
+	if (!early && !acpi_lapic)
+		pr_info("Processors: %d\n", num_procs);
 	/*
 	 * Only use the first configuration found.
 	 */