dma_buf_end_cpu_access(9) [centos man page]

DMA_BUF_END_CPU_ACCE(9) 				   Device drivers infrastructure				   DMA_BUF_END_CPU_ACCE(9)

NAME

       dma_buf_end_cpu_access - Must be called after accessing a dma_buf from the cpu in the kernel context. Calls end_cpu_access to allow
       exporter-specific actions. Coherency is only guaranteed in the specified range for the specified access direction.

SYNOPSIS

       void dma_buf_end_cpu_access(struct dma_buf * dmabuf, size_t start, size_t len, enum dma_data_direction direction);

ARGUMENTS

       dmabuf
	   [in] buffer to complete cpu access for.

       start
	   [in] start of range for cpu access.

       len
	   [in] length of range for cpu access.

       direction
	   [in] length of range for cpu access.

DESCRIPTION

       This call must always succeed.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						   DMA_BUF_END_CPU_ACCE(9)

CPUSET(3)						   BSD Library Functions Manual 						 CPUSET(3)

NAME

     cpuset_create, cpuset_destroy, cpuset_zero, cpuset_set, cpuset_clr, cpuset_isset, cpuset_size -- dynamic CPU sets

SYNOPSIS

     #include <sched.h>

     cpuset_t *
     cpuset_create(void);

     void
     cpuset_destroy(cpuset_t *set);

     void
     cpuset_zero(cpuset_t *set);

     int
     cpuset_set(cpuid_t cpu, cpuset_t *set);

     int
     cpuset_clr(cpuid_t cpu, cpuset_t *set);

     int
     cpuset_isset(cpuid_t cpu, const cpuset_t *set);

     size_t
     cpuset_size(const cpuset_t *set);

DESCRIPTION

     This section describes the functions used to create, set, use and destroy the dynamic CPU sets.

     This API can be used with the POSIX threads, see pthread(3) and affinity(3).

     The ID of the primary CPU in the system is 0.

FUNCTIONS

     cpuset_create()
	      Allocates and initializes a clean CPU-set.  Returns the pointer to the CPU-set, or NULL on failure.

     cpuset_destroy(set)
	      Destroy the CPU-set specified by set.

     cpuset_zero(set)
	      Makes the CPU-set specified by set clean, that is, memory is initialized to zero bytes, and none of the CPUs set.

     cpuset_set(cpu, set)
	      Sets the CPU specified by cpu in set.  Returns zero on success, and -1 if cpu is invalid.

     cpuset_clr(cpu, set)
	      Clears the CPU specified by cpu in the CPU-set set.  Returns zero on success, and -1 if cpu is invalid.

     cpuset_isset(cpu, set)
	      Checks if CPU specified by cpu is set in the CPU-set set.  Returns the positive number if set, zero if not set, and -1 if cpu is
	      invalid.

     cpuset_size(set)
	      Returns the size in bytes of CPU-set specified by set.

SEE ALSO

     affinity(3), pset(3), sched(3), schedctl(8), kcpuset(9)

HISTORY

     The dynamic CPU sets appeared in NetBSD 5.0.

BSD
								 November 2, 2011							       BSD