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authorLinus Torvalds <torvalds@linux-foundation.org>2025-09-30 10:35:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2025-09-30 10:35:11 -0700
commit6c7340a7a8d2b6ecad1ad108f6daa73ba1dc082f (patch)
treee3381cf64f5094a266547552b0a9945012566bfa /arch/sparc
parent755fa5b4fb36627796af19932a432d343220ec63 (diff)
parent45b7f780739a3145aeef24d2dfa02517a6c82ed6 (diff)
downloadlinux-6c7340a7a8d2b6ecad1ad108f6daa73ba1dc082f.tar.gz
Merge tag 'sched-core-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar: "Core scheduler changes: - Make migrate_{en,dis}able() inline, to improve performance (Menglong Dong) - Move STDL_INIT() functions out-of-line (Peter Zijlstra) - Unify the SCHED_{SMT,CLUSTER,MC} Kconfig (Peter Zijlstra) Fair scheduling: - Defer throttling to when tasks exit to user-space, to reduce the chance & impact of throttle-preemption with held locks and other resources (Aaron Lu, Valentin Schneider) - Get rid of sched_domains_curr_level hack for tl->cpumask(), as the warning was getting triggered on certain topologies (Peter Zijlstra) Misc cleanups & fixes: - Header cleanups (Menglong Dong) - Fix race in push_dl_task() (Harshit Agarwal)" * tag 'sched-core-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Fix some typos in include/linux/preempt.h sched: Make migrate_{en,dis}able() inline rcu: Replace preempt.h with sched.h in include/linux/rcupdate.h arch: Add the macro COMPILE_OFFSETS to all the asm-offsets.c sched/fair: Do not balance task to a throttled cfs_rq sched/fair: Do not special case tasks in throttled hierarchy sched/fair: update_cfs_group() for throttled cfs_rqs sched/fair: Propagate load for throttled cfs_rq sched/fair: Get rid of throttled_lb_pair() sched/fair: Task based throttle time accounting sched/fair: Switch to task based throttle model sched/fair: Implement throttle task work and related helpers sched/fair: Add related data structure for task based throttle sched: Unify the SCHED_{SMT,CLUSTER,MC} Kconfig sched: Move STDL_INIT() functions out-of-line sched/fair: Get rid of sched_domains_curr_level hack for tl->cpumask() sched/deadline: Fix race in push_dl_task()
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/Kconfig20
-rw-r--r--arch/sparc/kernel/asm-offsets.c1
2 files changed, 3 insertions, 18 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 7b595092cbfb65..a630d373e6453c 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -110,6 +110,8 @@ config SPARC64
select HAVE_SETUP_PER_CPU_AREA
select NEED_PER_CPU_EMBED_FIRST_CHUNK
select NEED_PER_CPU_PAGE_FIRST_CHUNK
+ select ARCH_SUPPORTS_SCHED_SMT if SMP
+ select ARCH_SUPPORTS_SCHED_MC if SMP
config ARCH_PROC_KCORE_TEXT
def_bool y
@@ -288,24 +290,6 @@ if SPARC64 || COMPILE_TEST
source "kernel/power/Kconfig"
endif
-config SCHED_SMT
- bool "SMT (Hyperthreading) scheduler support"
- depends on SPARC64 && SMP
- default y
- help
- SMT scheduler support improves the CPU scheduler's decision making
- when dealing with SPARC cpus at a cost of slightly increased overhead
- in some places. If unsure say N here.
-
-config SCHED_MC
- bool "Multi-core scheduler support"
- depends on SPARC64 && SMP
- default y
- help
- Multi-core scheduler support improves the CPU scheduler's decision
- making when dealing with multi-core CPU chips at a cost of slightly
- increased overhead in some places. If unsure say N here.
-
config CMDLINE_BOOL
bool "Default bootloader kernel arguments"
depends on SPARC64
diff --git a/arch/sparc/kernel/asm-offsets.c b/arch/sparc/kernel/asm-offsets.c
index 3d9b9855dce917..6e660bde48dd89 100644
--- a/arch/sparc/kernel/asm-offsets.c
+++ b/arch/sparc/kernel/asm-offsets.c
@@ -10,6 +10,7 @@
*
* On sparc, thread_info data is static and TI_XXX offsets are computed by hand.
*/
+#define COMPILE_OFFSETS
#include <linux/sched.h>
#include <linux/mm_types.h>