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authorJakub Kicinski <kuba@kernel.org>2021-04-09 20:46:01 -0700
committerJakub Kicinski <kuba@kernel.org>2021-04-09 20:48:35 -0700
commit8859a44ea0df92bccdc942ef15781ebbfe0ad9f3 (patch)
treebffdd602a7d6ad5060df41789af75965f9d58270 /arch/x86/kernel
parent6c5e6b4ccc1bb9ac56579a9aed25d517d2318be6 (diff)
parent4e04e7513b0fa2fe8966a1c83fb473f1667e2810 (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts: MAINTAINERS - keep Chandrasekar drivers/net/ethernet/mellanox/mlx5/core/en_main.c - simple fix + trust the code re-added to param.c in -next is fine include/linux/bpf.h - trivial include/linux/ethtool.h - trivial, fix kdoc while at it include/linux/skmsg.h - move to relevant place in tcp.c, comment re-wrapped net/core/skmsg.c - add the sk = sk // sk = NULL around calls net/tipc/crypto.c - trivial Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/acpi/boot.c25
-rw-r--r--arch/x86/kernel/setup.c8
-rw-r--r--arch/x86/kernel/smpboot.c26
3 files changed, 27 insertions, 32 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 7bdc0239a943..14cd3186dc77 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1554,10 +1554,18 @@ void __init acpi_boot_table_init(void)
/*
* Initialize the ACPI boot-time table parser.
*/
- if (acpi_table_init()) {
+ if (acpi_locate_initial_tables())
disable_acpi();
- return;
- }
+ else
+ acpi_reserve_initial_tables();
+}
+
+int __init early_acpi_boot_init(void)
+{
+ if (acpi_disabled)
+ return 1;
+
+ acpi_table_init_complete();
acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf);
@@ -1570,18 +1578,9 @@ void __init acpi_boot_table_init(void)
} else {
printk(KERN_WARNING PREFIX "Disabling ACPI support\n");
disable_acpi();
- return;
+ return 1;
}
}
-}
-
-int __init early_acpi_boot_init(void)
-{
- /*
- * If acpi_disabled, bail out
- */
- if (acpi_disabled)
- return 1;
/*
* Process the Multiple APIC Description Table (MADT), if present
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index d883176ef2ce..5ecd69a48393 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1045,6 +1045,9 @@ void __init setup_arch(char **cmdline_p)
cleanup_highmap();
+ /* Look for ACPI tables and reserve memory occupied by them. */
+ acpi_boot_table_init();
+
memblock_set_current_limit(ISA_END_ADDRESS);
e820__memblock_setup();
@@ -1136,11 +1139,6 @@ void __init setup_arch(char **cmdline_p)
early_platform_quirks();
- /*
- * Parse the ACPI tables for possible boot-time SMP configuration.
- */
- acpi_boot_table_init();
-
early_acpi_boot_init();
initmem_init();
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 02813a7f3a7c..16703c35a944 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1659,13 +1659,17 @@ void play_dead_common(void)
local_irq_disable();
}
-static bool wakeup_cpu0(void)
+/**
+ * cond_wakeup_cpu0 - Wake up CPU0 if needed.
+ *
+ * If NMI wants to wake up CPU0, start CPU0.
+ */
+void cond_wakeup_cpu0(void)
{
if (smp_processor_id() == 0 && enable_start_cpu0)
- return true;
-
- return false;
+ start_cpu0();
}
+EXPORT_SYMBOL_GPL(cond_wakeup_cpu0);
/*
* We need to flush the caches before going to sleep, lest we have
@@ -1734,11 +1738,8 @@ static inline void mwait_play_dead(void)
__monitor(mwait_ptr, 0, 0);
mb();
__mwait(eax, 0);
- /*
- * If NMI wants to wake up CPU0, start CPU0.
- */
- if (wakeup_cpu0())
- start_cpu0();
+
+ cond_wakeup_cpu0();
}
}
@@ -1749,11 +1750,8 @@ void hlt_play_dead(void)
while (1) {
native_halt();
- /*
- * If NMI wants to wake up CPU0, start CPU0.
- */
- if (wakeup_cpu0())
- start_cpu0();
+
+ cond_wakeup_cpu0();
}
}