From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
Paolo Bonzini <pbonzini@redhat.com>, Wei Liu <wei.liu@kernel.org>,
Arjan van de Ven <arjan@linux.intel.com>,
Juergen Gross <jgross@suse.com>
Subject: [patch 34/58] x86/apic: Allow apic::wait_icr_idle() to be NULL
Date: Tue, 18 Jul 2023 01:15:27 +0200 (CEST) [thread overview]
Message-ID: <20230717223225.096117007@linutronix.de> (raw)
In-Reply-To: <20230717223049.327865981@linutronix.de>
Nuke more NOOP callbacks and make the invocation conditional. Will be
replaced with a static call later.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/include/asm/apic.h | 9 ++-------
arch/x86/kernel/apic/apic_noop.c | 2 --
arch/x86/kernel/apic/apic_numachip.c | 7 -------
arch/x86/kernel/apic/x2apic_cluster.c | 1 -
arch/x86/kernel/apic/x2apic_phys.c | 1 -
arch/x86/kernel/apic/x2apic_uv_x.c | 1 -
arch/x86/xen/apic.c | 5 -----
7 files changed, 2 insertions(+), 24 deletions(-)
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -206,12 +206,6 @@ static inline u32 native_apic_msr_read(u
return (u32)msr;
}
-static inline void native_x2apic_wait_icr_idle(void)
-{
- /* no need to wait for icr idle in x2apic */
- return;
-}
-
static inline u32 native_safe_x2apic_wait_icr_idle(void)
{
/* no need to wait for icr idle in x2apic */
@@ -376,7 +370,8 @@ static inline void apic_icr_write(u32 lo
static inline void apic_wait_icr_idle(void)
{
- apic->wait_icr_idle();
+ if (apic->wait_icr_idle)
+ apic->wait_icr_idle();
}
static inline u32 safe_apic_wait_icr_idle(void)
--- a/arch/x86/kernel/apic/apic_noop.c
+++ b/arch/x86/kernel/apic/apic_noop.c
@@ -20,7 +20,6 @@ static void noop_send_IPI_mask_allbutsel
static void noop_send_IPI_allbutself(int vector) { }
static void noop_send_IPI_all(int vector) { }
static void noop_send_IPI_self(int vector) { }
-static void noop_apic_wait_icr_idle(void) { }
static void noop_apic_icr_write(u32 low, u32 id) { }
static int noop_wakeup_secondary_cpu(int apicid, unsigned long start_eip)
@@ -105,6 +104,5 @@ struct apic apic_noop __ro_after_init =
.eoi_write = noop_apic_write,
.icr_read = noop_apic_icr_read,
.icr_write = noop_apic_icr_write,
- .wait_icr_idle = noop_apic_wait_icr_idle,
.safe_wait_icr_idle = noop_safe_apic_wait_icr_idle,
};
--- a/arch/x86/kernel/apic/apic_numachip.c
+++ b/arch/x86/kernel/apic/apic_numachip.c
@@ -223,11 +223,6 @@ static int numachip2_acpi_madt_oem_check
return 1;
}
-/* APIC IPIs are queued */
-static void numachip_apic_wait_icr_idle(void)
-{
-}
-
/* APIC NMI IPIs are queued */
static u32 numachip_safe_apic_wait_icr_idle(void)
{
@@ -269,7 +264,6 @@ static const struct apic apic_numachip1
.eoi_write = native_apic_mem_write,
.icr_read = native_apic_icr_read,
.icr_write = native_apic_icr_write,
- .wait_icr_idle = numachip_apic_wait_icr_idle,
.safe_wait_icr_idle = numachip_safe_apic_wait_icr_idle,
};
@@ -310,7 +304,6 @@ static const struct apic apic_numachip2
.eoi_write = native_apic_mem_write,
.icr_read = native_apic_icr_read,
.icr_write = native_apic_icr_write,
- .wait_icr_idle = numachip_apic_wait_icr_idle,
.safe_wait_icr_idle = numachip_safe_apic_wait_icr_idle,
};
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -266,7 +266,6 @@ static struct apic apic_x2apic_cluster _
.eoi_write = native_apic_msr_eoi_write,
.icr_read = native_x2apic_icr_read,
.icr_write = native_x2apic_icr_write,
- .wait_icr_idle = native_x2apic_wait_icr_idle,
.safe_wait_icr_idle = native_safe_x2apic_wait_icr_idle,
};
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -180,7 +180,6 @@ static struct apic apic_x2apic_phys __ro
.eoi_write = native_apic_msr_eoi_write,
.icr_read = native_x2apic_icr_read,
.icr_write = native_x2apic_icr_write,
- .wait_icr_idle = native_x2apic_wait_icr_idle,
.safe_wait_icr_idle = native_safe_x2apic_wait_icr_idle,
};
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -854,7 +854,6 @@ static struct apic apic_x2apic_uv_x __ro
.eoi_write = native_apic_msr_eoi_write,
.icr_read = native_x2apic_icr_read,
.icr_write = native_x2apic_icr_write,
- .wait_icr_idle = native_x2apic_wait_icr_idle,
.safe_wait_icr_idle = native_safe_x2apic_wait_icr_idle,
};
--- a/arch/x86/xen/apic.c
+++ b/arch/x86/xen/apic.c
@@ -120,10 +120,6 @@ static int xen_phys_pkg_id(int initial_a
return initial_apic_id >> index_msb;
}
-static void xen_noop(void)
-{
-}
-
static int xen_cpu_present_to_apicid(int cpu)
{
if (cpu_present(cpu))
@@ -165,7 +161,6 @@ static struct apic xen_pv_apic = {
.icr_read = xen_apic_icr_read,
.icr_write = xen_apic_icr_write,
- .wait_icr_idle = xen_noop,
.safe_wait_icr_idle = xen_safe_apic_wait_icr_idle,
};
next prev parent reply other threads:[~2023-07-17 23:17 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-17 23:14 [patch 00/58] x86/apic: Decrapification and static calls Thomas Gleixner
2023-07-17 23:14 ` [patch 01/58] x86/cpu: Make identify_boot_cpu() static Thomas Gleixner
2023-07-17 23:14 ` [patch 02/58] x86/cpu: Remove unused physid_*() nonsense Thomas Gleixner
2023-07-17 23:14 ` [patch 03/58] x86/apic: Rename disable_apic Thomas Gleixner
2023-07-17 23:14 ` [patch 04/58] x86/apic/ioapic: Rename skip_ioapic_setup Thomas Gleixner
2023-07-17 23:14 ` [patch 05/58] x86/apic: Remove pointless x86_bios_cpu_apicid Thomas Gleixner
2023-07-17 23:14 ` [patch 06/58] x86/apic: Get rid of hard_smp_processor_id() Thomas Gleixner
2023-07-17 23:14 ` [patch 07/58] x86/apic: Remove unused max_physical_apicid Thomas Gleixner
2023-07-17 23:14 ` [patch 08/58] x86/apic: Nuke unused apic::inquire_remote_apic() Thomas Gleixner
2023-07-17 23:14 ` [patch 09/58] x86/apic: Get rid of boot_cpu_physical_apicid madness Thomas Gleixner
2023-07-17 23:14 ` [patch 10/58] x86/apic: Register boot CPU APIC early Thomas Gleixner
2023-07-17 23:14 ` [patch 11/58] x86/apic: Remove the pointless APIC version check Thomas Gleixner
2023-07-17 23:14 ` [patch 12/58] x86/of: Fix the APIC address registration Thomas Gleixner
2023-07-17 23:14 ` [patch 13/58] x86/apic: Make some APIC init functions bool Thomas Gleixner
2023-07-17 23:14 ` [patch 14/58] x86/apic: Split register_apic_address() Thomas Gleixner
2023-07-17 23:14 ` [patch 15/58] x86/apic: Sanitize APIC address setup Thomas Gleixner
2023-07-17 23:14 ` [patch 16/58] x86/apic: Sanitize num_processors handling Thomas Gleixner
2023-07-17 23:15 ` [patch 17/58] x86/apic: Nuke another processor check Thomas Gleixner
2023-07-17 23:15 ` [patch 18/58] x86/apic: Remove check_phys_apicid_present() Thomas Gleixner
2023-07-17 23:15 ` [patch 19/58] x86/apic: Get rid of apic_phys Thomas Gleixner
2023-07-18 13:11 ` Thomas Gleixner
2023-07-20 4:18 ` Michael Kelley (LINUX)
2023-07-20 8:03 ` Thomas Gleixner
2023-07-21 4:17 ` Michael Kelley (LINUX)
2023-07-17 23:15 ` [patch 20/58] x86/apic/32: Sanitize logical APIC ID handling Thomas Gleixner
2023-07-17 23:15 ` [patch 21/58] x86/apic/32: Remove x86_cpu_to_logical_apicid Thomas Gleixner
2023-07-17 23:15 ` [patch 22/58] x86/apic/ipi: Code cleanup Thomas Gleixner
2023-07-17 23:15 ` [patch 23/58] x86/apic: Mop up early_per_cpu() abuse Thomas Gleixner
2023-07-17 23:15 ` [patch 24/58] x86/apic/32: Remove pointless default_acpi_madt_oem_check() Thomas Gleixner
2023-07-18 4:28 ` Juergen Gross
2023-07-17 23:15 ` [patch 25/58] x86/apic/32: Decrapify the def_bigsmp mechanism Thomas Gleixner
2023-07-17 23:15 ` [patch 26/58] x86/apic/32: Remove bigsmp_cpu_present_to_apicid() Thomas Gleixner
2023-07-17 23:15 ` [patch 27/58] x86/apic: Nuke empty init_apic_ldr() callbacks Thomas Gleixner
2023-07-17 23:15 ` [patch 28/58] x86/apic: Nuke apic::apicid_to_cpu_present() Thomas Gleixner
2023-07-17 23:15 ` [patch 29/58] x86/ioapic/32: Decrapify phys_id_present_map operation Thomas Gleixner
2023-07-17 23:15 ` [patch 30/58] x86/apic: Mop up *setup_apic_routing() Thomas Gleixner
2023-07-17 23:15 ` [patch 31/58] x86/apic: Mop up apic::apic_id_registered() Thomas Gleixner
2023-07-17 23:15 ` [patch 32/58] x86/apic/ipi: Tidy up the code and fixup comments Thomas Gleixner
2023-07-17 23:15 ` [patch 33/58] x86/apic: Consolidate wait_icr_idle() implementations Thomas Gleixner
2023-07-17 23:15 ` Thomas Gleixner [this message]
2023-07-17 23:15 ` [patch 35/58] x86/apic: Allow apic::safe_wait_icr_idle() to be NULL Thomas Gleixner
2023-07-17 23:15 ` [patch 36/58] x86/apic: Move safe wait_icr_idle() next to apic_mem_wait_icr_idle() Thomas Gleixner
2023-07-17 23:15 ` [patch 37/58] x86/apic/uv: Get rid of wrapper callbacks Thomas Gleixner
2023-07-17 23:15 ` [patch 38/58] x86/apic/x2apic: Share all common IPI functions Thomas Gleixner
2023-07-17 23:15 ` [patch 39/58] x86/apic/64: Uncopypaste probing Thomas Gleixner
2023-07-17 23:15 ` [patch 40/58] x86/apic: Wrap APIC ID validation into an inline Thomas Gleixner
2023-07-17 23:15 ` [patch 41/58] x86/apic: Add max_apic_id member Thomas Gleixner
2023-07-18 0:19 ` Linus Torvalds
2023-07-18 7:47 ` Thomas Gleixner
2023-07-18 15:54 ` Thomas Gleixner
2023-07-18 16:06 ` Linus Torvalds
2023-07-18 18:59 ` Thomas Gleixner
2023-07-17 23:15 ` [patch 42/58] x86/apic: Simplify X2APIC ID validation Thomas Gleixner
2023-07-17 23:15 ` [patch 43/58] x86/apic: Prepare x2APIC for using apic::max_apic_id Thomas Gleixner
2023-07-17 23:15 ` [patch 44/58] x86/apic: Sanitize APID ID range validation Thomas Gleixner
2023-07-17 23:15 ` [patch 45/58] x86/apic: Remove pointless NULL initializations Thomas Gleixner
2023-07-17 23:15 ` [patch 46/58] x86/apic/noop: Tidy up the code Thomas Gleixner
2023-07-17 23:15 ` [patch 47/58] x86/apic: Remove pointless arguments from [native_]eoi_write() Thomas Gleixner
2023-07-23 22:45 ` Wei Liu
2023-07-17 23:15 ` [patch 48/58] x86/apic: Nuke ack_APIC_irq() Thomas Gleixner
2023-07-23 22:45 ` Wei Liu
2023-07-17 23:15 ` [patch 49/58] x86/apic: Wrap apic->native_eoi() into a helper Thomas Gleixner
2023-07-17 23:15 ` [patch 50/58] x86/apic: Provide common init infrastructure Thomas Gleixner
2023-07-18 21:29 ` Peter Keresztes Schmidt
2023-07-18 21:51 ` Thomas Gleixner
2023-07-17 23:15 ` [patch 51/58] x86/apic: Provide apic_update_callback() Thomas Gleixner
2023-07-21 4:27 ` Michael Kelley (LINUX)
2023-07-17 23:15 ` [patch 52/58] x86/apic: Replace acpi_wake_cpu_handler_update() and apic_set_eoi_cb() Thomas Gleixner
2023-07-23 22:55 ` Wei Liu
2023-07-17 23:15 ` [patch 53/58] x86/apic: Convert other overrides to apic_update_callback() Thomas Gleixner
2023-07-21 17:49 ` Michael Kelley (LINUX)
2023-07-23 12:32 ` Thomas Gleixner
2023-07-17 23:15 ` [patch 54/58] x86/xen/apic: Mark apic __ro_after_init Thomas Gleixner
2023-07-18 15:31 ` Juergen Gross
2023-07-18 15:56 ` Thomas Gleixner
2023-07-18 16:08 ` Juergen Gross
2023-07-17 23:16 ` [patch 55/58] x86/apic: Mark all hotpath APIC callback wrappers __always_inline Thomas Gleixner
2023-07-17 23:16 ` [patch 56/58] x86/apic: Wrap IPI calls into helper functions Thomas Gleixner
2023-07-17 23:16 ` [patch 57/58] x86/apic: Provide static call infrastructure for APIC callbacks Thomas Gleixner
2023-07-18 9:19 ` Peter Zijlstra
2023-07-17 23:16 ` [patch 58/58] x86/apic: Turn on static calls Thomas Gleixner
2023-07-18 13:35 ` Thomas Gleixner
2023-07-18 0:27 ` [patch 00/58] x86/apic: Decrapification and " Linus Torvalds
2023-07-18 9:23 ` Peter Zijlstra
2023-07-18 14:29 ` Linus Walleij
2023-07-24 16:59 ` William Breathitt Gray
2023-07-20 12:43 ` Marc Gonzalez
2023-07-20 13:13 ` Peter Zijlstra
2023-07-20 13:47 ` Thomas Gleixner
2023-07-20 15:16 ` Marc Gonzalez
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