Displaying 20 results from an estimated 43 matches for "__asm_generic_qspinlock_types_h".
2014 Jun 15
0
[PATCH 01/11] qspinlock: A simple generic 4-byte queue spinlock
...without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * (C) Copyright 2013-2014 Hewlett-Packard Development Company, L.P.
+ *
+ * Authors: Waiman Long <waiman.long at hp.com>
+ */
+#ifndef __ASM_GENERIC_QSPINLOCK_TYPES_H
+#define __ASM_GENERIC_QSPINLOCK_TYPES_H
+
+/*
+ * Including atomic.h with PARAVIRT on will cause compilation errors because
+ * of recursive header file incluson via paravirt_types.h. A workaround is
+ * to include paravirt_types.h here.
+ */
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt_type...
2015 Mar 16
0
[PATCH 1/9] qspinlock: A simple generic 4-byte queue spinlock
...without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * (C) Copyright 2013-2014 Hewlett-Packard Development Company, L.P.
+ *
+ * Authors: Waiman Long <waiman.long at hp.com>
+ */
+#ifndef __ASM_GENERIC_QSPINLOCK_TYPES_H
+#define __ASM_GENERIC_QSPINLOCK_TYPES_H
+
+/*
+ * Including atomic.h with PARAVIRT on will cause compilation errors because
+ * of recursive header file incluson via paravirt_types.h. So don't include
+ * it if PARAVIRT is on.
+ */
+#ifndef CONFIG_PARAVIRT
+#include <linux/types.h>
+#inc...
2014 Apr 02
0
[PATCH v8 01/10] qspinlock: A generic 4-byte queue spinlock implementation
...without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * (C) Copyright 2013-2014 Hewlett-Packard Development Company, L.P.
+ *
+ * Authors: Waiman Long <waiman.long at hp.com>
+ */
+#ifndef __ASM_GENERIC_QSPINLOCK_TYPES_H
+#define __ASM_GENERIC_QSPINLOCK_TYPES_H
+
+/*
+ * Including atomic.h with PARAVIRT on will cause compilation errors because
+ * of recursive header file incluson via paravirt_types.h. A workaround is
+ * to include paravirt_types.h here in this case.
+ */
+#ifdef CONFIG_PARAVIRT
+# include <asm...
2014 Feb 26
0
[PATCH v5 1/8] qspinlock: Introducing a 4-byte queue spinlock implementation
...without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * (C) Copyright 2013-2014 Hewlett-Packard Development Company, L.P.
+ *
+ * Authors: Waiman Long <waiman.long at hp.com>
+ */
+#ifndef __ASM_GENERIC_QSPINLOCK_TYPES_H
+#define __ASM_GENERIC_QSPINLOCK_TYPES_H
+
+/*
+ * Including atomic.h with PARAVIRT on will cause compilation errors because
+ * of recursive header file incluson via paravirt_types.h. A workaround is
+ * to include paravirt_types.h here in this case.
+ */
+#ifdef CONFIG_PARAVIRT
+# include <asm...
2014 Feb 27
0
[PATCH v5 1/8] qspinlock: Introducing a 4-byte queue spinlock implementation
...without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * (C) Copyright 2013-2014 Hewlett-Packard Development Company, L.P.
+ *
+ * Authors: Waiman Long <waiman.long at hp.com>
+ */
+#ifndef __ASM_GENERIC_QSPINLOCK_TYPES_H
+#define __ASM_GENERIC_QSPINLOCK_TYPES_H
+
+/*
+ * Including atomic.h with PARAVIRT on will cause compilation errors because
+ * of recursive header file incluson via paravirt_types.h. A workaround is
+ * to include paravirt_types.h here in this case.
+ */
+#ifdef CONFIG_PARAVIRT
+# include <asm...
2014 Jun 15
0
[PATCH 03/11] qspinlock: Add pending bit
...)
#define _Q_TAIL_IDX_BITS 2
#define _Q_TAIL_IDX_MASK _Q_SET_MASK(TAIL_IDX)
@@ -57,5 +62,6 @@ typedef struct qspinlock {
#define _Q_TAIL_CPU_MASK _Q_SET_MASK(TAIL_CPU)
#define _Q_LOCKED_VAL (1U << _Q_LOCKED_OFFSET)
+#define _Q_PENDING_VAL (1U << _Q_PENDING_OFFSET)
#endif /* __ASM_GENERIC_QSPINLOCK_TYPES_H */
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -83,24 +83,28 @@ static inline struct mcs_spinlock *decod
return per_cpu_ptr(&mcs_nodes[idx], cpu);
}
+#define _Q_LOCKED_PENDING_MASK (_Q_LOCKED_MASK | _Q_PENDING_MASK)
+
/**
* queue_spin_lock_slowpath - acquire the...
2014 Apr 17
0
[PATCH v9 03/19] qspinlock: Add pending bit
...)
#define _Q_TAIL_IDX_BITS 2
#define _Q_TAIL_IDX_MASK _Q_SET_MASK(TAIL_IDX)
@@ -57,5 +62,6 @@ typedef struct qspinlock {
#define _Q_TAIL_CPU_MASK _Q_SET_MASK(TAIL_CPU)
#define _Q_LOCKED_VAL (1U << _Q_LOCKED_OFFSET)
+#define _Q_PENDING_VAL (1U << _Q_PENDING_OFFSET)
#endif /* __ASM_GENERIC_QSPINLOCK_TYPES_H */
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index b97a1ad..d35362a 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -83,23 +83,93 @@ static inline struct mcs_spinlock *decode_tail(u32 tail)
return per_cpu_ptr(&mcs_nodes[idx], cpu);
}
+...
2014 May 07
0
[PATCH v10 03/19] qspinlock: Add pending bit
...)
#define _Q_TAIL_IDX_BITS 2
#define _Q_TAIL_IDX_MASK _Q_SET_MASK(TAIL_IDX)
@@ -57,5 +62,6 @@ typedef struct qspinlock {
#define _Q_TAIL_CPU_MASK _Q_SET_MASK(TAIL_CPU)
#define _Q_LOCKED_VAL (1U << _Q_LOCKED_OFFSET)
+#define _Q_PENDING_VAL (1U << _Q_PENDING_OFFSET)
#endif /* __ASM_GENERIC_QSPINLOCK_TYPES_H */
diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c
index b97a1ad..6467bfc 100644
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -83,23 +83,97 @@ static inline struct mcs_spinlock *decode_tail(u32 tail)
return per_cpu_ptr(&mcs_nodes[idx], cpu);
}
+...
2015 Mar 16
0
[PATCH 3/9] qspinlock: Add pending bit
...)
#define _Q_TAIL_IDX_BITS 2
#define _Q_TAIL_IDX_MASK _Q_SET_MASK(TAIL_IDX)
@@ -54,5 +59,6 @@ typedef struct qspinlock {
#define _Q_TAIL_CPU_MASK _Q_SET_MASK(TAIL_CPU)
#define _Q_LOCKED_VAL (1U << _Q_LOCKED_OFFSET)
+#define _Q_PENDING_VAL (1U << _Q_PENDING_OFFSET)
#endif /* __ASM_GENERIC_QSPINLOCK_TYPES_H */
--- a/kernel/locking/qspinlock.c
+++ b/kernel/locking/qspinlock.c
@@ -94,24 +94,28 @@ static inline struct mcs_spinlock *decod
return per_cpu_ptr(&mcs_nodes[idx], cpu);
}
+#define _Q_LOCKED_PENDING_MASK (_Q_LOCKED_MASK | _Q_PENDING_MASK)
+
/**
* queue_spin_lock_slowpath - acquire the...
2014 Jun 17
5
[PATCH 03/11] qspinlock: Add pending bit
...Q_TAIL_IDX_MASK _Q_SET_MASK(TAIL_IDX)
>
> @@ -57,5 +62,6 @@ typedef struct qspinlock {
> #define _Q_TAIL_CPU_MASK _Q_SET_MASK(TAIL_CPU)
>
> #define _Q_LOCKED_VAL (1U << _Q_LOCKED_OFFSET)
> +#define _Q_PENDING_VAL (1U << _Q_PENDING_OFFSET)
>
> #endif /* __ASM_GENERIC_QSPINLOCK_TYPES_H */
> --- a/kernel/locking/qspinlock.c
> +++ b/kernel/locking/qspinlock.c
> @@ -83,24 +83,28 @@ static inline struct mcs_spinlock *decod
> return per_cpu_ptr(&mcs_nodes[idx], cpu);
> }
>
> +#define _Q_LOCKED_PENDING_MASK (_Q_LOCKED_MASK | _Q_PENDING_MASK)
> +
> /...
2014 Jun 17
5
[PATCH 03/11] qspinlock: Add pending bit
...Q_TAIL_IDX_MASK _Q_SET_MASK(TAIL_IDX)
>
> @@ -57,5 +62,6 @@ typedef struct qspinlock {
> #define _Q_TAIL_CPU_MASK _Q_SET_MASK(TAIL_CPU)
>
> #define _Q_LOCKED_VAL (1U << _Q_LOCKED_OFFSET)
> +#define _Q_PENDING_VAL (1U << _Q_PENDING_OFFSET)
>
> #endif /* __ASM_GENERIC_QSPINLOCK_TYPES_H */
> --- a/kernel/locking/qspinlock.c
> +++ b/kernel/locking/qspinlock.c
> @@ -83,24 +83,28 @@ static inline struct mcs_spinlock *decod
> return per_cpu_ptr(&mcs_nodes[idx], cpu);
> }
>
> +#define _Q_LOCKED_PENDING_MASK (_Q_LOCKED_MASK | _Q_PENDING_MASK)
> +
> /...
2014 Jun 15
28
[PATCH 00/11] qspinlock with paravirt support
Since Waiman seems incapable of doing simple things; here's my take on the
paravirt crap.
The first few patches are taken from Waiman's latest series, but the virt
support is completely new. Its primary aim is to not mess up the native code.
I've not stress tested it, but the virt and paravirt (kvm) cases boot on simple
smp guests. I've not done Xen, but the patch should be
2014 Jun 15
28
[PATCH 00/11] qspinlock with paravirt support
Since Waiman seems incapable of doing simple things; here's my take on the
paravirt crap.
The first few patches are taken from Waiman's latest series, but the virt
support is completely new. Its primary aim is to not mess up the native code.
I've not stress tested it, but the virt and paravirt (kvm) cases boot on simple
smp guests. I've not done Xen, but the patch should be
2014 Oct 16
15
[PATCH v12 00/11] qspinlock: a 4-byte queue spinlock with PV support
v11->v12:
- Based on PeterZ's version of the qspinlock patch
(https://lkml.org/lkml/2014/6/15/63).
- Incorporated many of the review comments from Konrad Wilk and
Paolo Bonzini.
- The pvqspinlock code is largely from my previous version with
PeterZ's way of going from queue tail to head and his idea of
using callee saved calls to KVM and XEN codes.
v10->v11:
- Use a
2014 Oct 16
15
[PATCH v12 00/11] qspinlock: a 4-byte queue spinlock with PV support
v11->v12:
- Based on PeterZ's version of the qspinlock patch
(https://lkml.org/lkml/2014/6/15/63).
- Incorporated many of the review comments from Konrad Wilk and
Paolo Bonzini.
- The pvqspinlock code is largely from my previous version with
PeterZ's way of going from queue tail to head and his idea of
using callee saved calls to KVM and XEN codes.
v10->v11:
- Use a
2015 Jan 20
13
[PATCH v14 00/11] qspinlock: a 4-byte queue spinlock with PV support
v13->v14:
- Patches 1 & 2: Add queue_spin_unlock_wait() to accommodate commit
78bff1c86 from Oleg Nesterov.
- Fix the system hang problem when using PV qspinlock in an
over-committed guest due to a racing condition in the
pv_set_head_in_tail() function.
- Increase the MAYHALT_THRESHOLD from 10 to 1024.
- Change kick_cpu into a regular function pointer instead of a
2015 Jan 20
13
[PATCH v14 00/11] qspinlock: a 4-byte queue spinlock with PV support
v13->v14:
- Patches 1 & 2: Add queue_spin_unlock_wait() to accommodate commit
78bff1c86 from Oleg Nesterov.
- Fix the system hang problem when using PV qspinlock in an
over-committed guest due to a racing condition in the
pv_set_head_in_tail() function.
- Increase the MAYHALT_THRESHOLD from 10 to 1024.
- Change kick_cpu into a regular function pointer instead of a
2015 Mar 16
19
[PATCH 0/9] qspinlock stuff -v15
Hi Waiman,
As promised; here is the paravirt stuff I did during the trip to BOS last week.
All the !paravirt patches are more or less the same as before (the only real
change is the copyright lines in the first patch).
The paravirt stuff is 'simple' and KVM only -- the Xen code was a little more
convoluted and I've no real way to test that but it should be stright fwd to
make work.
2015 Mar 16
19
[PATCH 0/9] qspinlock stuff -v15
Hi Waiman,
As promised; here is the paravirt stuff I did during the trip to BOS last week.
All the !paravirt patches are more or less the same as before (the only real
change is the copyright lines in the first patch).
The paravirt stuff is 'simple' and KVM only -- the Xen code was a little more
convoluted and I've no real way to test that but it should be stright fwd to
make work.
2014 Oct 29
15
[PATCH v13 00/11] qspinlock: a 4-byte queue spinlock with PV support
v12->v13:
- Change patch 9 to generate separate versions of the
queue_spin_lock_slowpath functions for bare metal and PV guest. This
reduces the performance impact of the PV code on bare metal systems.
v11->v12:
- Based on PeterZ's version of the qspinlock patch
(https://lkml.org/lkml/2014/6/15/63).
- Incorporated many of the review comments from Konrad Wilk and
Paolo