Displaying 9 results from an estimated 9 matches for "prod_cpu".
2020 Jul 05
1
[PATCH v2 5/6] powerpc/pseries: implement paravirt qspinlocks for SPLPAR
.../powerpc/include/asm/paravirt.h
> +++ b/arch/powerpc/include/asm/paravirt.h
> @@ -29,6 +29,16 @@ static inline void yield_to_preempted(int cpu, u32 yield_count)
> {
> plpar_hcall_norets(H_CONFER, get_hard_smp_processor_id(cpu), yield_count);
> }
> +
> +static inline void prod_cpu(int cpu)
> +{
> + plpar_hcall_norets(H_PROD, get_hard_smp_processor_id(cpu));
> +}
> +
> +static inline void yield_to_any(void)
> +{
> + plpar_hcall_norets(H_CONFER, -1, 0);
> +}
> #else
> static inline bool is_shared_processor(void)
> {
> @@ -45,6 +55,19 @...
2020 Jul 02
0
[PATCH 6/8] powerpc/pseries: implement paravirt qspinlocks for SPLPAR
...660a63..5fae9dfa6fe9 100644
--- a/arch/powerpc/include/asm/paravirt.h
+++ b/arch/powerpc/include/asm/paravirt.h
@@ -29,6 +29,16 @@ static inline void yield_to_preempted(int cpu, u32 yield_count)
{
plpar_hcall_norets(H_CONFER, get_hard_smp_processor_id(cpu), yield_count);
}
+
+static inline void prod_cpu(int cpu)
+{
+ plpar_hcall_norets(H_PROD, get_hard_smp_processor_id(cpu));
+}
+
+static inline void yield_to_any(void)
+{
+ plpar_hcall_norets(H_CONFER, -1, 0);
+}
#else
static inline bool is_shared_processor(void)
{
@@ -45,6 +55,19 @@ static inline void yield_to_preempted(int cpu, u32 yield_coun...
2020 Jul 03
0
[PATCH v2 5/6] powerpc/pseries: implement paravirt qspinlocks for SPLPAR
...660a63..f2d51f929cf5 100644
--- a/arch/powerpc/include/asm/paravirt.h
+++ b/arch/powerpc/include/asm/paravirt.h
@@ -29,6 +29,16 @@ static inline void yield_to_preempted(int cpu, u32 yield_count)
{
plpar_hcall_norets(H_CONFER, get_hard_smp_processor_id(cpu), yield_count);
}
+
+static inline void prod_cpu(int cpu)
+{
+ plpar_hcall_norets(H_PROD, get_hard_smp_processor_id(cpu));
+}
+
+static inline void yield_to_any(void)
+{
+ plpar_hcall_norets(H_CONFER, -1, 0);
+}
#else
static inline bool is_shared_processor(void)
{
@@ -45,6 +55,19 @@ static inline void yield_to_preempted(int cpu, u32 yield_coun...
2020 Jul 06
0
[PATCH v3 5/6] powerpc/pseries: implement paravirt qspinlocks for SPLPAR
...660a63..f2d51f929cf5 100644
--- a/arch/powerpc/include/asm/paravirt.h
+++ b/arch/powerpc/include/asm/paravirt.h
@@ -29,6 +29,16 @@ static inline void yield_to_preempted(int cpu, u32 yield_count)
{
plpar_hcall_norets(H_CONFER, get_hard_smp_processor_id(cpu), yield_count);
}
+
+static inline void prod_cpu(int cpu)
+{
+ plpar_hcall_norets(H_PROD, get_hard_smp_processor_id(cpu));
+}
+
+static inline void yield_to_any(void)
+{
+ plpar_hcall_norets(H_CONFER, -1, 0);
+}
#else
static inline bool is_shared_processor(void)
{
@@ -45,6 +55,19 @@ static inline void yield_to_preempted(int cpu, u32 yield_coun...
2020 Jul 03
7
[PATCH v2 0/6] powerpc: queued spinlocks and rwlocks
v2 is updated to account for feedback from Will, Peter, and
Waiman (thank you), and trims off a couple of RFC and unrelated
patches.
Thanks,
Nick
Nicholas Piggin (6):
powerpc/powernv: must include hvcall.h to get PAPR defines
powerpc/pseries: move some PAPR paravirt functions to their own file
powerpc: move spinlock implementation to simple_spinlock
powerpc/64s: implement queued
2020 Jul 02
12
[PATCH 0/8] powerpc: queued spinlocks and rwlocks
This series adds an option to use queued spinlocks for powerpc, and
makes it the default for the Book3S-64 subarch.
This effort starts with the generic code so it's very simple but
still very performant. There are optimisations that can be made to
slowpaths, but I think it's better to attack those incrementally
if/when we find things, and try to add the improvements to generic
code as
2020 Jul 24
8
[PATCH v4 0/6] powerpc: queued spinlocks and rwlocks
Updated with everybody's feedback (thanks all), and more performance
results.
What I've found is I might have been measuring the worst load point for
the paravirt case, and by looking at a range of loads it's clear that
queued spinlocks are overall better even on PV, doubly so when you look
at the generally much improved worst case latencies.
I have defaulted it to N even though
2020 Jul 06
13
[PATCH v3 0/6] powerpc: queued spinlocks and rwlocks
v3 is updated to use __pv_queued_spin_unlock, noticed by Waiman (thank you).
Thanks,
Nick
Nicholas Piggin (6):
powerpc/powernv: must include hvcall.h to get PAPR defines
powerpc/pseries: move some PAPR paravirt functions to their own file
powerpc: move spinlock implementation to simple_spinlock
powerpc/64s: implement queued spinlocks and rwlocks
powerpc/pseries: implement paravirt
2020 Jul 06
13
[PATCH v3 0/6] powerpc: queued spinlocks and rwlocks
v3 is updated to use __pv_queued_spin_unlock, noticed by Waiman (thank you).
Thanks,
Nick
Nicholas Piggin (6):
powerpc/powernv: must include hvcall.h to get PAPR defines
powerpc/pseries: move some PAPR paravirt functions to their own file
powerpc: move spinlock implementation to simple_spinlock
powerpc/64s: implement queued spinlocks and rwlocks
powerpc/pseries: implement paravirt