From a6625b473b943b8c624fde3f2b444781114942d3 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 8 Aug 2023 15:03:43 -0700
Subject: [PATCH] x86/apic: Get rid of hard_smp_processor_id()
No point in having a wrapper around read_apic_id().
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Michael Kelley <mikelley@microsoft.com>
Tested-by: Sohil Mehta <sohil.mehta@intel.com>
Tested-by: Juergen Gross <jgross@suse.com> # Xen PV (dom0 and unpriv. guest)
---
arch/x86/include/asm/apic.h | 6 +++++-
arch/x86/include/asm/smp.h | 7 -------
arch/x86/kernel/apic/apic.c | 5 -----
arch/x86/kernel/apic/io_apic.c | 2 +-
arch/x86/kernel/apic/ipi.c | 2 +-
arch/x86/kernel/apic/vector.c | 2 +-
arch/x86/kernel/cpu/amd.c | 2 +-
arch/x86/kernel/cpu/hygon.c | 3 ++-
arch/x86/kernel/smpboot.c | 10 +++++-----
arch/x86/kernel/vsmp_64.c | 2 +-
10 files changed, 17 insertions(+), 24 deletions(-)
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 36f0be7c005c9..b59104085b504 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -503,7 +503,11 @@ extern void default_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *r
extern int default_cpu_present_to_apicid(int mps_cpu);
extern int default_check_phys_apicid_present(int phys_apicid);
-#endif /* CONFIG_X86_LOCAL_APIC */
+#else /* CONFIG_X86_LOCAL_APIC */
+
+static inline unsigned int read_apic_id(void) { return 0; }
+
+#endif /* !CONFIG_X86_LOCAL_APIC */
#ifdef CONFIG_SMP
void apic_smt_update(void);
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 1db6faa59ad17..8d96d9a6962de 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -185,13 +185,6 @@ static inline struct cpumask *cpu_llc_shared_mask(int cpu)
extern unsigned disabled_cpus;
-#ifdef CONFIG_X86_LOCAL_APIC
-extern int hard_smp_processor_id(void);
-
-#else /* CONFIG_X86_LOCAL_APIC */
-#define hard_smp_processor_id() 0
-#endif /* CONFIG_X86_LOCAL_APIC */
-
#ifdef CONFIG_DEBUG_NMI_SELFTEST
extern void nmi_selftest(void);
#else
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 8af0ec8a393bd..ee64f8f4e0e93 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -2562,11 +2562,6 @@ int generic_processor_info(int apicid, int version)
return cpu;
}
-int hard_smp_processor_id(void)
-{
- return read_apic_id();
-}
-
void __irq_msi_compose_msg(struct irq_cfg *cfg, struct msi_msg *msg,
bool dmar)
{
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 48975d53e845e..a8b329aab672c 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2095,7 +2095,7 @@ static inline void __init unlock_ExtINT_logic(void)
entry0 = ioapic_read_entry(apic, pin);
clear_IO_APIC_pin(apic, pin);
- apic_id = hard_smp_processor_id();
+ apic_id = read_apic_id();
memset(&entry1, 0, sizeof(entry1));
entry1.dest_mode_logical = true;
diff --git a/arch/x86/kernel/apic/ipi.c b/arch/x86/kernel/apic/ipi.c
index 2a6509e8c840d..29273e0151fc9 100644
--- a/arch/x86/kernel/apic/ipi.c
+++ b/arch/x86/kernel/apic/ipi.c
@@ -320,7 +320,7 @@ int safe_smp_processor_id(void)
if (!boot_cpu_has(X86_FEATURE_APIC))
return 0;
- apicid = hard_smp_processor_id();
+ apicid = read_apic_id();
if (apicid == BAD_APICID)
return 0;
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 04655b7e3107a..71feae718a87f 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -1208,7 +1208,7 @@ static void __init print_local_APIC(void *dummy)
u64 icr;
pr_debug("printing local APIC contents on CPU#%d/%d:\n",
- smp_processor_id(), hard_smp_processor_id());
+ smp_processor_id(), read_apic_id());
v = apic_read(APIC_ID);
pr_info("... APIC ID: %08x (%01x)\n", v, read_apic_id());
v = apic_read(APIC_LVR);
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 26ad7ca423e7c..5861eeab8c303 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -1042,7 +1042,7 @@ static void init_amd(struct cpuinfo_x86 *c)
set_cpu_cap(c, X86_FEATURE_FSRS);
/* get apicid instead of initial apic id from cpuid */
- c->apicid = hard_smp_processor_id();
+ c->apicid = read_apic_id();
/* K6s reports MCEs but don't actually have all the MSRs */
if (c->x86 < 6)
diff --git a/arch/x86/kernel/cpu/hygon.c b/arch/x86/kernel/cpu/hygon.c
index 5a2962c492d31..defdc594be14d 100644
--- a/arch/x86/kernel/cpu/hygon.c
+++ b/arch/x86/kernel/cpu/hygon.c
@@ -8,6 +8,7 @@
*/
#include <linux/io.h>
+#include <asm/apic.h>
#include <asm/cpu.h>
#include <asm/smp.h>
#include <asm/numa.h>
@@ -300,7 +301,7 @@ static void init_hygon(struct cpuinfo_x86 *c)
set_cpu_cap(c, X86_FEATURE_REP_GOOD);
/* get apicid instead of initial apic id from cpuid */
- c->apicid = hard_smp_processor_id();
+ c->apicid = read_apic_id();
/*
* XXX someone from Hygon needs to confirm this DTRT
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index e1aa2cd7734ba..8229f41d1ec1a 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1220,11 +1220,11 @@ static void __init smp_sanity_check(void)
}
#endif
- if (!physid_isset(hard_smp_processor_id(), phys_cpu_present_map)) {
+ if (!physid_isset(read_apic_id(), phys_cpu_present_map)) {
pr_warn("weird, boot CPU (#%d) not listed by the BIOS\n",
- hard_smp_processor_id());
+ read_apic_id());
- physid_set(hard_smp_processor_id(), phys_cpu_present_map);
+ physid_set(read_apic_id(), phys_cpu_present_map);
}
/*
@@ -1234,7 +1234,7 @@ static void __init smp_sanity_check(void)
if (!apic->check_phys_apicid_present(boot_cpu_physical_apicid)) {
pr_notice("weird, boot CPU (#%d) not listed by the BIOS\n",
boot_cpu_physical_apicid);
- physid_set(hard_smp_processor_id(), phys_cpu_present_map);
+ physid_set(read_apic_id(), phys_cpu_present_map);
}
preempt_enable();
}
@@ -1439,7 +1439,7 @@ __init void prefill_possible_map(void)
if (!num_processors) {
if (boot_cpu_has(X86_FEATURE_APIC)) {
int apicid = boot_cpu_physical_apicid;
- int cpu = hard_smp_processor_id();
+ int cpu = read_apic_id();
pr_warn("Boot CPU (id %d) not listed by BIOS\n", cpu);
diff --git a/arch/x86/kernel/vsmp_64.c b/arch/x86/kernel/vsmp_64.c
index 796cfaa46bfac..65e96b76c4232 100644
--- a/arch/x86/kernel/vsmp_64.c
+++ b/arch/x86/kernel/vsmp_64.c
@@ -129,7 +129,7 @@ static void __init vsmp_cap_cpus(void)
static int apicid_phys_pkg_id(int initial_apic_id, int index_msb)
{
- return hard_smp_processor_id() >> index_msb;
+ return read_apic_id() >> index_msb;
}
static void vsmp_apic_post_init(void)
--
2.30.2