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Date: Tue, 13 Feb 2024 22:05:14 +0100 (CET)
From: Thomas Gleixner <tglx@...utronix.de>
To: LKML <linux-kernel@...r.kernel.org>
Cc: x86@...nel.org,
Tom Lendacky <thomas.lendacky@....com>,
Andrew Cooper <andrew.cooper3@...rix.com>,
Arjan van de Ven <arjan@...ux.intel.com>,
Huang Rui <ray.huang@....com>,
Juergen Gross <jgross@...e.com>,
Dimitri Sivanich <dimitri.sivanich@....com>,
Sohil Mehta <sohil.mehta@...el.com>,
K Prateek Nayak <kprateek.nayak@....com>,
Kan Liang <kan.liang@...ux.intel.com>,
Zhang Rui <rui.zhang@...el.com>,
"Paul E. McKenney" <paulmck@...nel.org>,
Feng Tang <feng.tang@...el.com>,
Andy Shevchenko <andy@...radead.org>,
Michael Kelley <mhklinux@...look.com>,
"Peter Zijlstra (Intel)" <peterz@...radead.org>,
Andy Shevchenko <andy.shevchenko@...il.com>,
Wei Liu <wei.liu@...nel.org>
Subject: [patch V3 17/22] x86/mpparse: Switch to new init callbacks
From: Thomas Gleixner <tglx@...utronix.de>
Now that all platforms have the new split SMP configuration callbacks set
up, flip the switch and remove the old callback pointer and mop up the
platform code.
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
arch/x86/hyperv/hv_vtl.c | 1 -
arch/x86/include/asm/mpspec.h | 9 +--------
arch/x86/include/asm/x86_init.h | 2 --
arch/x86/kernel/jailhouse.c | 8 +-------
arch/x86/kernel/mpparse.c | 2 +-
arch/x86/kernel/setup.c | 10 +++-------
arch/x86/kernel/x86_init.c | 3 ++-
arch/x86/platform/ce4100/ce4100.c | 1 -
arch/x86/platform/intel-mid/intel-mid.c | 1 -
arch/x86/xen/smp_pv.c | 11 +----------
10 files changed, 9 insertions(+), 39 deletions(-)
---
--- a/arch/x86/hyperv/hv_vtl.c
+++ b/arch/x86/hyperv/hv_vtl.c
@@ -29,7 +29,6 @@ void __init hv_vtl_init_platform(void)
x86_init.mpparse.find_mptable = x86_init_noop;
x86_init.mpparse.early_parse_smp_cfg = x86_init_noop;
x86_init.mpparse.parse_smp_cfg = x86_init_noop;
- x86_init.mpparse.get_smp_config = x86_init_uint_noop;
x86_platform.get_wallclock = get_rtc_noop;
x86_platform.set_wallclock = set_rtc_noop;
--- a/arch/x86/include/asm/mpspec.h
+++ b/arch/x86/include/asm/mpspec.h
@@ -46,14 +46,9 @@ extern int smp_found_config;
# define smp_found_config 0
#endif
-static inline void get_smp_config(void)
-{
- x86_init.mpparse.get_smp_config(0);
-}
-
static inline void early_get_smp_config(void)
{
- x86_init.mpparse.get_smp_config(1);
+ x86_init.mpparse.early_parse_smp_cfg();
}
#ifdef CONFIG_X86_MPPARSE
@@ -62,14 +57,12 @@ extern int enable_update_mptable;
extern void mpparse_find_mptable(void);
extern void mpparse_parse_early_smp_config(void);
extern void mpparse_parse_smp_config(void);
-extern void mpparse_get_smp_config(unsigned int early);
#else
static inline void e820__memblock_alloc_reserved_mpc_new(void) { }
#define enable_update_mptable 0
#define mpparse_find_mptable x86_init_noop
#define mpparse_parse_early_smp_config x86_init_noop
#define mpparse_parse_smp_config x86_init_noop
-#define mpparse_get_smp_config x86_init_uint_noop
#endif
int generic_processor_info(int apicid);
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -16,14 +16,12 @@ struct irq_domain;
* struct x86_init_mpparse - platform specific mpparse ops
* @setup_ioapic_ids: platform specific ioapic id override
* @find_mptable: Find MPTABLE early to reserve the memory region
- * @get_smp_config: get the smp configuration
* @early_parse_smp_cfg: Parse the SMP configuration data early before initmem_init()
* @parse_smp_cfg: Parse the SMP configuration data
*/
struct x86_init_mpparse {
void (*setup_ioapic_ids)(void);
void (*find_mptable)(void);
- void (*get_smp_config)(unsigned int early);
void (*early_parse_smp_cfg)(void);
void (*parse_smp_cfg)(void);
};
--- a/arch/x86/kernel/jailhouse.c
+++ b/arch/x86/kernel/jailhouse.c
@@ -89,7 +89,7 @@ static void __init jailhouse_x2apic_init
#endif
}
-static void __init jailhouse_get_smp_config(unsigned int early)
+static void __init jailhouse_parse_smp_config(void)
{
struct ioapic_domain_cfg ioapic_cfg = {
.type = IOAPIC_DOMAIN_STRICT,
@@ -118,11 +118,6 @@ static void __init jailhouse_get_smp_con
}
}
-static void __init jailhouse_parse_smp_config(void)
-{
- jailhouse_get_smp_config(false);
-}
-
static void jailhouse_no_restart(void)
{
pr_notice("Jailhouse: Restart not supported, halting\n");
@@ -211,7 +206,6 @@ static void __init jailhouse_init_platfo
x86_init.mpparse.find_mptable = x86_init_noop;
x86_init.mpparse.early_parse_smp_cfg = x86_init_noop;
x86_init.mpparse.parse_smp_cfg = jailhouse_parse_smp_config;
- x86_init.mpparse.get_smp_config = jailhouse_get_smp_config;
x86_init.pci.arch_init = jailhouse_pci_arch_init;
x86_platform.calibrate_cpu = jailhouse_get_tsc;
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -473,7 +473,7 @@ static int __init check_physptr(struct m
/*
* Scan the memory blocks for an SMP configuration block.
*/
-void __init mpparse_get_smp_config(unsigned int early)
+static __init void mpparse_get_smp_config(unsigned int early)
{
struct mpf_intel *mpf;
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1128,15 +1128,11 @@ void __init setup_arch(char **cmdline_p)
early_quirks();
/*
- * Read APIC and some other early information from ACPI tables.
+ * Parse SMP configuration. Try ACPI first and then the platform
+ * specific parser.
*/
acpi_boot_init();
- x86_dtb_parse_smp_config();
-
- /*
- * get boot-time SMP configuration:
- */
- get_smp_config();
+ x86_init.mpparse.parse_smp_cfg();
/*
* Systems w/o ACPI and mptables might not have it mapped the local
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -71,7 +71,8 @@ struct x86_init_ops x86_init __initdata
.mpparse = {
.setup_ioapic_ids = x86_init_noop,
.find_mptable = mpparse_find_mptable,
- .get_smp_config = mpparse_get_smp_config,
+ .early_parse_smp_cfg = mpparse_parse_early_smp_config,
+ .parse_smp_cfg = mpparse_parse_smp_config,
},
.irqs = {
--- a/arch/x86/platform/ce4100/ce4100.c
+++ b/arch/x86/platform/ce4100/ce4100.c
@@ -140,7 +140,6 @@ void __init x86_ce4100_early_setup(void)
x86_init.mpparse.find_mptable = x86_init_noop;
x86_init.mpparse.early_parse_smp_cfg = x86_init_noop;
x86_init.mpparse.parse_smp_cfg = x86_dtb_parse_smp_config;
- x86_init.mpparse.get_smp_config = x86_init_uint_noop;
x86_init.pci.init = ce4100_pci_init;
x86_init.pci.init_irq = sdv_pci_init;
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -121,6 +121,5 @@ void __init x86_intel_mid_early_setup(vo
x86_init.mpparse.find_mptable = x86_init_noop;
x86_init.mpparse.early_parse_smp_cfg = x86_init_noop;
x86_init.mpparse.parse_smp_cfg = x86_init_noop;
- x86_init.mpparse.get_smp_config = x86_init_uint_noop;
set_bit(MP_BUS_ISA, mp_bus_not_pci);
}
--- a/arch/x86/xen/smp_pv.c
+++ b/arch/x86/xen/smp_pv.c
@@ -148,14 +148,11 @@ int xen_smp_intr_init_pv(unsigned int cp
return rc;
}
-static void __init _get_smp_config(unsigned int early)
+static void __init xen_pv_smp_config(void)
{
int i, rc;
unsigned int subtract = 0;
- if (early)
- return;
-
num_processors = 0;
disabled_cpus = 0;
for (i = 0; i < nr_cpu_ids; i++) {
@@ -185,11 +182,6 @@ static void __init _get_smp_config(unsig
smp_found_config = 1;
}
-static void __init xen_pv_smp_config(void)
-{
- _get_smp_config(false);
-}
-
static void __init xen_pv_smp_prepare_boot_cpu(void)
{
BUG_ON(smp_processor_id() != 0);
@@ -463,5 +455,4 @@ void __init xen_smp_init(void)
x86_init.mpparse.find_mptable = x86_init_noop;
x86_init.mpparse.early_parse_smp_cfg = x86_init_noop;
x86_init.mpparse.parse_smp_cfg = xen_pv_smp_config;
- x86_init.mpparse.get_smp_config = _get_smp_config;
}
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