Displaying 5 results from an estimated 5 matches for "nxtcpu".
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2014 Feb 26
0
[PATCH RFC v5 7/8] pvqspinlock, x86: Add qspinlock para-virtualization support
...b/arch/x86/include/asm/pvqspinlock.h
new file mode 100644
index 0000000..45aae39
--- /dev/null
+++ b/arch/x86/include/asm/pvqspinlock.h
@@ -0,0 +1,176 @@
+#ifndef _ASM_X86_PVQSPINLOCK_H
+#define _ASM_X86_PVQSPINLOCK_H
+
+/*
+ * Queue Spinlock Para-Virtualization Support
+ *
+ * +------+ +-----+ nxtcpu_p1 +----+
+ * | Lock | |Queue|----------->|Next|
+ * |Holder|<-----------|Head |<-----------|Node|
+ * +------+ prev_qcode +-----+ prev_qcode +----+
+ *
+ * As long as the current lock holder passes through the slowpath, the queue
+ * head CPU will have its CPU number stored in prev_q...
2014 Feb 26
22
[PATCH v5 0/8] qspinlock: a 4-byte queue spinlock with PV support
v4->v5:
- Move the optimized 2-task contending code to the generic file to
enable more architectures to use it without code duplication.
- Address some of the style-related comments by PeterZ.
- Allow the use of unfair queue spinlock in a real para-virtualized
execution environment.
- Add para-virtualization support to the qspinlock code by ensuring
that the lock holder and queue
2014 Feb 26
22
[PATCH v5 0/8] qspinlock: a 4-byte queue spinlock with PV support
v4->v5:
- Move the optimized 2-task contending code to the generic file to
enable more architectures to use it without code duplication.
- Address some of the style-related comments by PeterZ.
- Allow the use of unfair queue spinlock in a real para-virtualized
execution environment.
- Add para-virtualization support to the qspinlock code by ensuring
that the lock holder and queue
2014 Feb 27
14
[PATCH v5 0/8] qspinlock: a 4-byte queue spinlock with PV support
v4->v5:
- Move the optimized 2-task contending code to the generic file to
enable more architectures to use it without code duplication.
- Address some of the style-related comments by PeterZ.
- Allow the use of unfair queue spinlock in a real para-virtualized
execution environment.
- Add para-virtualization support to the qspinlock code by ensuring
that the lock holder and queue
2014 Feb 27
14
[PATCH v5 0/8] qspinlock: a 4-byte queue spinlock with PV support
v4->v5:
- Move the optimized 2-task contending code to the generic file to
enable more architectures to use it without code duplication.
- Address some of the style-related comments by PeterZ.
- Allow the use of unfair queue spinlock in a real para-virtualized
execution environment.
- Add para-virtualization support to the qspinlock code by ensuring
that the lock holder and queue