PDS Kernel Configuration

customization.cfg

@@ -163,6 +163,24 @@ _acs_override="false"
 # This can be buggy and isn't recommended on a production machine, also enabling this option will not allow you to enable MGLRU.
 _bcachefs="false"
 
+# Set to "true" to add multi-generational LRU framework support on kernel 5.18+ - Improves memory pressure handling - https://lore.kernel.org/lkml/20220706220022.968789-1-yuzhao@google.com/
+# Older kernel versions might have a patch available in the community-patches repo
+# ! This option will be disabled when bcachefs is enabled for now !
+_mglru="true"
+
+# Set to "true" to enable support for fsync, an experimental replacement for esync found in Valve Proton 4.11+ - https://steamcommunity.com/games/221410/announcements/detail/2957094910196249305
+# Can be enabled alongside _futex_waitv on 5.13+ to use it as a fallback for older Proton builds
+_fsync="true"
+
+# Set to "true" to enable support for futex2, an experimental interface that can be used by proton-tkg and proton 5.13 experimental through Fsync - Can be enabled alongside fsync to use it as a fallback
+# https://gitlab.collabora.com/tonyk/linux/-/tree/futex2-dev
+_futex2="true"
+
+# Set to "true" to enable backported patches to add support for the futex_waitv() syscall, a new interface for fsync. It will appear in mainline at Linux 5.16 release and requires a wine/proton with builtin support for it. It's expected to be available in Valve Proton 6.3 stable soon - https://github.com/ValveSoftware/wine/pull/128
+# !! Disables futex2 interfaces support !!
+# https://github.com/andrealmeid/futex_waitv_patches
+_futex_waitv="false"
+
 # Set to "true" to enable support for winesync, an experimental replacement for esync - requires patched wine - https://repo.or.cz/linux/zf.git/shortlog/refs/heads/winesync4
 # ! Can't be used on multiple kernels installed side-by-side, which will require https://aur.archlinux.org/packages/winesync-dkms/ instead of this option !
 _winesync="false"
@@ -190,6 +208,9 @@ _compileroptlevel="2"
 # - "generic_v4" (depends on GCC11 - to share the package between machines with different CPU µarch supporting at least x86-64-v4
 _processor_opt="skylake"
 
+# MuQSS only - Make IRQ threading compulsory (FORCE_IRQ_THREADING) - Default is "false"
+_irq_threading="false"
+
 # CacULE only - Enable Response Driven Balancer, an experimental load balancer for CacULE
 _cacule_rdb="false"
 
@@ -206,6 +227,10 @@ _smt_nice="true"
 # Trust the CPU manufacturer to initialize Linux's CRNG (RANDOM_TRUST_CPU) - Kernel default is "false"
 _random_trust_cpu="true"
 
+# MuQSS only - CPU scheduler runqueue sharing - No sharing (RQ_NONE), SMT (hyperthread) siblings (RQ_SMT), Multicore siblings (RQ_MC), Symmetric Multi-Processing (RQ_SMP), NUMA (RQ_ALL)
+# Valid values are "none", "smt", "mc", "mc-llc"(for zen), "smp", "all" - Kernel default is "smt"
+_runqueue_sharing=""
+
 # Timer frequency - "100" "250" "300" "500" "750" "1000" ("2000" is available for cacule cpusched only) - More options available in kernel config prompt when left empty depending on selected cpusched with the default option pointed with a ">" (2000 for cacule, 100 for muqss and 1000 for other cpu schedulers)
 _timer_freq="500"
 
@@ -239,41 +264,14 @@ _custom_pkgbase=""
 # If left empty, it will use "-tkg-${_cpusched}${_compiler}" where "${_cpusched}" will be replaced by the user chosen scheduler, ${_compiler} will be replaced by "-llvm" if clang is used (nothing for GCC).
 _kernel_localversion=""
 
+# Set to "true" to add back missing symbol for AES-NI/AVX support on ZFS - This is a legacy option that can be ignored on 5.10+ kernels - https://github.com/NixOS/nixpkgs/blob/master/pkgs/os-specific/linux/kernel/export_kernel_fpu_functions.patch
+_zfsfix="true"
+
 # Set to your maximum number of CPUs (physical + logical cores) - Lower means less overhead - You can set it to "$(nproc)" to use the current host's CPU(s) core count, or leave empty to use default
 # If you set this to a lower value than you have cores, some cores will be disabled
 # Default Arch kernel value is 320
 _NR_CPUS_value=""
 
-#### LEGACY OPTIONS ####
-
-# Set to "true" to enable support for fsync, an experimental replacement for esync found in Valve Proton 4.11+ - https://steamcommunity.com/games/221410/announcements/detail/2957094910196249305
-# Can be enabled alongside _futex_waitv on 5.13+ to use it as a fallback for older Proton builds
-_fsync="true"
-
-# Set to "true" to enable backported patches to add support for the futex_waitv() syscall, a new interface for fsync. Upstream as of 5.16 and requires a wine/proton with builtin support for it - https://github.com/ValveSoftware/wine/pull/128
-# !! Disables futex2 interfaces support !!
-# https://github.com/andrealmeid/futex_waitv_patches
-_futex_waitv="true"
-
-# Set to "true" to enable support for futex2, an experimental interface that can be used by proton-tkg and proton 5.13 experimental through Fsync - Can be enabled alongside fsync to use it as a fallback
-# https://gitlab.collabora.com/tonyk/linux/-/tree/futex2-dev
-_futex2="true"
-
-# Set to "true" to add back missing symbol for AES-NI/AVX support on ZFS - This is a legacy option that can be ignored on 5.10+ kernels - https://github.com/NixOS/nixpkgs/blob/master/pkgs/os-specific/linux/kernel/export_kernel_fpu_functions.patch
-_zfsfix="true"
-
-# MuQSS only - CPU scheduler runqueue sharing - No sharing (RQ_NONE), SMT (hyperthread) siblings (RQ_SMT), Multicore siblings (RQ_MC), Symmetric Multi-Processing (RQ_SMP), NUMA (RQ_ALL)
-# Valid values are "none", "smt", "mc", "mc-llc"(for zen), "smp", "all" - Kernel default is "smt"
-_runqueue_sharing=""
-
-# MuQSS only - Make IRQ threading compulsory (FORCE_IRQ_THREADING) - Default is "false"
-_irq_threading="false"
-
-# Set to "true" to add multi-generational LRU framework support on kernel 5.18+ - Improves memory pressure handling - https://lore.kernel.org/lkml/20220706220022.968789-1-yuzhao@google.com/
-# Older kernel versions might have a patch available in the community-patches repo
-# Upstream as of 6.1
-# ! This option will be disabled when bcachefs is enabled !
-_mglru="true"
 
 #### USER PATCHES ####
 

linux-tkg-config/prepare

@@ -723,7 +723,7 @@ _tkg_srcprep() {
   elif [ "$_kver" = "518" ]; then
     rev=2
   elif [ "$_kver" = "601" ]; then
-    rev=1
+    rev=3
   else
     rev=0
   fi

linux-tkg-patches/6.1/0009-prjc_v6.1-r3.patch

@@ -632,10 +632,10 @@ index 976092b7bd45..31d587c16ec1 100644
  obj-y += build_utility.o
 diff --git a/kernel/sched/alt_core.c b/kernel/sched/alt_core.c
 new file mode 100644
-index 000000000000..572eab74418f
+index 000000000000..acb8657e811d
 --- /dev/null
 +++ b/kernel/sched/alt_core.c
-@@ -0,0 +1,7961 @@
+@@ -0,0 +1,7978 @@
 +/*
 + *  kernel/sched/alt_core.c
 + *
@@ -665,7 +665,6 @@ index 000000000000..572eab74418f
 +#include <linux/init_task.h>
 +#include <linux/kcov.h>
 +#include <linux/kprobes.h>
-+#include <linux/profile.h>
 +#include <linux/nmi.h>
 +#include <linux/scs.h>
 +
@@ -706,7 +705,7 @@ index 000000000000..572eab74418f
 +#define sched_feat(x)	(0)
 +#endif /* CONFIG_SCHED_DEBUG */
 +
-+#define ALT_SCHED_VERSION "v6.1-r1"
++#define ALT_SCHED_VERSION "v6.1-r3"
 +
 +/* rt_prio(prio) defined in include/linux/sched/rt.h */
 +#define rt_task(p)		rt_prio((p)->prio)
@@ -815,14 +814,14 @@ index 000000000000..572eab74418f
 +clear_recorded_preempt_mask(int pr, int low, int high, int cpu)
 +{
 +	if (low < pr && pr <= high)
-+		cpumask_clear_cpu(cpu, sched_preempt_mask + SCHED_QUEUE_BITS - 1 - pr);
++		cpumask_clear_cpu(cpu, sched_preempt_mask + SCHED_QUEUE_BITS - pr);
 +}
 +
 +static inline void
 +set_recorded_preempt_mask(int pr, int low, int high, int cpu)
 +{
 +	if (low < pr && pr <= high)
-+		cpumask_set_cpu(cpu, sched_preempt_mask + SCHED_QUEUE_BITS - 1 - pr);
++		cpumask_set_cpu(cpu, sched_preempt_mask + SCHED_QUEUE_BITS - pr);
 +}
 +
 +static atomic_t sched_prio_record = ATOMIC_INIT(0);
@@ -1392,8 +1391,8 @@ index 000000000000..572eab74418f
 + * Context: rq->lock
 + */
 +#define __SCHED_DEQUEUE_TASK(p, rq, flags)					\
-+	psi_dequeue(p, flags & DEQUEUE_SLEEP);					\
 +	sched_info_dequeue(rq, p);						\
++	psi_dequeue(p, flags & DEQUEUE_SLEEP);					\
 +										\
 +	list_del(&p->sq_node);							\
 +	if (list_empty(&rq->queue.heads[p->sq_idx])) 				\
@@ -2030,11 +2029,13 @@ index 000000000000..572eab74418f
 +
 +	WARN_ON_ONCE(is_migration_disabled(p));
 +#endif
-+	if (task_cpu(p) == new_cpu)
-+		return;
 +	trace_sched_migrate_task(p, new_cpu);
-+	rseq_migrate(p);
-+	perf_event_task_migrate(p);
++
++	if (task_cpu(p) != new_cpu)
++	{
++		rseq_migrate(p);
++		perf_event_task_migrate(p);
++	}
 +
 +	__set_task_cpu(p, new_cpu);
 +}
@@ -5110,15 +5111,15 @@ index 000000000000..572eab74418f
 +				if (src_rq->nr_running < 2)
 +					cpumask_clear_cpu(i, &sched_rq_pending_mask);
 +
++				spin_release(&src_rq->lock.dep_map, _RET_IP_);
++				do_raw_spin_unlock(&src_rq->lock);
++
 +				rq->nr_running += nr_migrated;
 +				if (rq->nr_running > 1)
 +					cpumask_set_cpu(cpu, &sched_rq_pending_mask);
 +
 +				cpufreq_update_util(rq, 0);
 +
-+				spin_release(&src_rq->lock.dep_map, _RET_IP_);
-+				do_raw_spin_unlock(&src_rq->lock);
-+
 +				return 1;
 +			}
 +
@@ -5147,7 +5148,7 @@ index 000000000000..572eab74418f
 +}
 +
 +static inline struct task_struct *
-+choose_next_task(struct rq *rq, int cpu, struct task_struct *prev)
++choose_next_task(struct rq *rq, int cpu)
 +{
 +	struct task_struct *next;
 +
@@ -5334,7 +5335,7 @@ index 000000000000..572eab74418f
 +
 +	check_curr(prev, rq);
 +
-+	next = choose_next_task(rq, cpu, prev);
++	next = choose_next_task(rq, cpu);
 +	clear_tsk_need_resched(prev);
 +	clear_preempt_need_resched();
 +#ifdef CONFIG_SCHED_DEBUG
@@ -5764,6 +5765,7 @@ index 000000000000..572eab74418f
 +		return;
 +
 +	rq = __task_access_lock(p, &lock);
++	update_rq_clock(rq);
 +	/*
 +	 * Set under pi_lock && rq->lock, such that the value can be used under
 +	 * either lock.
@@ -6643,6 +6645,13 @@ index 000000000000..572eab74418f
 +	return retval;
 +}
 +
++#ifdef CONFIG_SMP
++int dl_task_check_affinity(struct task_struct *p, const struct cpumask *mask)
++{
++	return 0;
++}
++#endif
++
 +static int
 +__sched_setaffinity(struct task_struct *p, const struct cpumask *mask)
 +{
@@ -8027,6 +8036,14 @@ index 000000000000..572eab74418f
 +
 +	sched_smp_initialized = true;
 +}
++
++static int __init migration_init(void)
++{
++	sched_cpu_starting(smp_processor_id());
++	return 0;
++}
++early_initcall(migration_init);
++
 +#else
 +void __init sched_init_smp(void)
 +{
@@ -8636,14 +8653,15 @@ index 000000000000..1212a031700e
 +{}
 diff --git a/kernel/sched/alt_sched.h b/kernel/sched/alt_sched.h
 new file mode 100644
-index 000000000000..e3b6320a397a
+index 000000000000..c32403ed82b6
 --- /dev/null
 +++ b/kernel/sched/alt_sched.h
-@@ -0,0 +1,667 @@
+@@ -0,0 +1,668 @@
 +#ifndef ALT_SCHED_H
 +#define ALT_SCHED_H
 +
 +#include <linux/context_tracking.h>
++#include <linux/profile.h>
 +#include <linux/psi.h>
 +#include <linux/stop_machine.h>
 +#include <linux/syscalls.h>