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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/arch/x86/kernel/apic/apic_flat_64.c
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@@ -1,6 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Copyright 2004 James Cleverdon, IBM.
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- * Subject to the GNU Public License, v.2
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  *
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  * Flat APIC subarch code.
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  *
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@@ -8,20 +8,14 @@
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  * Martin Bligh, Andi Kleen, James Bottomley, John Stultz, and
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  * James Cleverdon.
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  */
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-#include <linux/errno.h>
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-#include <linux/threads.h>
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 #include <linux/cpumask.h>
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-#include <linux/string.h>
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-#include <linux/kernel.h>
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-#include <linux/ctype.h>
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-#include <linux/hardirq.h>
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 #include <linux/export.h>
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-#include <asm/smp.h>
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-#include <asm/apic.h>
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-#include <asm/ipi.h>
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-#include <asm/jailhouse_para.h>
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-
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 #include <linux/acpi.h>
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+
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+#include <asm/jailhouse_para.h>
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+#include <asm/apic.h>
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+
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+#include "local.h"
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 static struct apic apic_physflat;
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 static struct apic apic_flat;
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@@ -77,38 +71,9 @@
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 	int cpu = smp_processor_id();
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 	if (cpu < BITS_PER_LONG)
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-		clear_bit(cpu, &mask);
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+		__clear_bit(cpu, &mask);
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 	_flat_send_IPI_mask(mask, vector);
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-}
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-
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-static void flat_send_IPI_allbutself(int vector)
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-{
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-	int cpu = smp_processor_id();
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-
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-	if (IS_ENABLED(CONFIG_HOTPLUG_CPU) || vector == NMI_VECTOR) {
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-		if (!cpumask_equal(cpu_online_mask, cpumask_of(cpu))) {
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-			unsigned long mask = cpumask_bits(cpu_online_mask)[0];
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-
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-			if (cpu < BITS_PER_LONG)
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-				clear_bit(cpu, &mask);
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-
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-			_flat_send_IPI_mask(mask, vector);
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-		}
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-	} else if (num_online_cpus() > 1) {
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-		__default_send_IPI_shortcut(APIC_DEST_ALLBUT,
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-					    vector, apic->dest_logical);
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-	}
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-}
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-
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-static void flat_send_IPI_all(int vector)
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-{
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-	if (vector == NMI_VECTOR) {
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-		flat_send_IPI_mask(cpu_online_mask, vector);
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-	} else {
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-		__default_send_IPI_shortcut(APIC_DEST_ALLINC,
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-					    vector, apic->dest_logical);
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-	}
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 }
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 static unsigned int flat_get_apic_id(unsigned long x)
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@@ -172,9 +137,9 @@
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 	.send_IPI			= default_send_IPI_single,
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 	.send_IPI_mask			= flat_send_IPI_mask,
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 	.send_IPI_mask_allbutself	= flat_send_IPI_mask_allbutself,
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-	.send_IPI_allbutself		= flat_send_IPI_allbutself,
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-	.send_IPI_all			= flat_send_IPI_all,
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-	.send_IPI_self			= apic_send_IPI_self,
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+	.send_IPI_allbutself		= default_send_IPI_allbutself,
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+	.send_IPI_all			= default_send_IPI_all,
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+	.send_IPI_self			= default_send_IPI_self,
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 	.inquire_remote_apic		= default_inquire_remote_apic,
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@@ -224,16 +189,6 @@
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 	 */
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 }
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-static void physflat_send_IPI_allbutself(int vector)
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-{
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-	default_send_IPI_mask_allbutself_phys(cpu_online_mask, vector);
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-}
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-
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-static void physflat_send_IPI_all(int vector)
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-{
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-	default_send_IPI_mask_sequence_phys(cpu_online_mask, vector);
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-}
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-
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 static int physflat_probe(void)
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 {
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 	if (apic == &apic_physflat || num_possible_cpus() > 8 ||
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@@ -275,9 +230,9 @@
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 	.send_IPI			= default_send_IPI_single_phys,
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 	.send_IPI_mask			= default_send_IPI_mask_sequence_phys,
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 	.send_IPI_mask_allbutself	= default_send_IPI_mask_allbutself_phys,
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-	.send_IPI_allbutself		= physflat_send_IPI_allbutself,
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-	.send_IPI_all			= physflat_send_IPI_all,
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-	.send_IPI_self			= apic_send_IPI_self,
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+	.send_IPI_allbutself		= default_send_IPI_allbutself,
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+	.send_IPI_all			= default_send_IPI_all,
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+	.send_IPI_self			= default_send_IPI_self,
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 	.inquire_remote_apic		= default_inquire_remote_apic,
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