diff options
Diffstat (limited to 'man2/spu_create.2')
| -rw-r--r-- | man2/spu_create.2 | 49 |
1 files changed, 32 insertions, 17 deletions
diff --git a/man2/spu_create.2 b/man2/spu_create.2 index 2196e9111..83a497f93 100644 --- a/man2/spu_create.2 +++ b/man2/spu_create.2 @@ -22,7 +22,7 @@ .\" 2007-07-10, some polishing by mtk .\" 2007-09-28, updates for newer kernels by Jeremy Kerr <jk@ozlabs.org> .\" -.TH SPU_CREATE 2 2020-06-09 Linux "Linux Programmer's Manual" +.TH SPU_CREATE 2 2020-12-21 Linux "Linux Programmer's Manual" .SH NAME spu_create \- create a new spu context .SH SYNOPSIS @@ -30,7 +30,6 @@ spu_create \- create a new spu context .B #include <sys/types.h> .B #include <sys/spu.h> .PP -.BI "int spu_create(const char *" pathname ", int " flags ", mode_t " mode ");" .BI "int spu_create(const char *" pathname ", int " flags ", mode_t " mode "," .BI " int " neighbor_fd ");" .fi @@ -77,6 +76,24 @@ this usually occurs when the file descriptor returned by is closed. .PP The +.I mode +argument (minus any bits set in the process's +.BR umask (2)) +specifies the permissions used for creating the new directory in +.BR spufs . +See +.BR stat (2) +for a full list of the possible +.I mode +values. +.PP +The +.I neighbor_fd +is used only when the +.B SPU_CREATE_AFFINITY_SPU +flag is specified; see below. +.PP +The .I flags argument can be zero or any bitwise OR-ed combination of the following constants: @@ -138,7 +155,8 @@ contexts also requires the .B SPU_CREATE_NOSCHED flag. .TP -.B SPU_CREATE_AFFINITY_SPU +.BR SPU_CREATE_AFFINITY_SPU " (since Linux 2.6.23)" +.\" commit 8e68e2f248332a9c3fd4f08258f488c209bd3e0c Create a context with affinity to another SPU context. This affinity information is used within the SPU scheduling algorithm. Using this flag requires that a file descriptor referring to @@ -146,22 +164,11 @@ the other SPU context be passed in the .I neighbor_fd argument. .TP -.B SPU_CREATE_AFFINITY_MEM +.BR SPU_CREATE_AFFINITY_MEM " (since Linux 2.6.23)" +.\" commit 8e68e2f248332a9c3fd4f08258f488c209bd3e0c Create a context with affinity to system memory. This affinity information is used within the SPU scheduling algorithm. -.PP -The -.I mode -argument (minus any bits set in the process's -.BR umask (2)) -specifies the permissions used for creating the new directory in -.BR spufs . -See -.BR stat (2) -for a full list of the possible -.I mode -values. .SH RETURN VALUE On success, .BR spu_create () @@ -262,6 +269,14 @@ See .UR http://www.bsc.es\:/projects\:/deepcomputing\:/linuxoncell/ .UE for the recommended libraries. +.PP +Prior to the addition of the +.B SPU_CREATE_AFFINITY_SPU +flag in Linux 2.6.23, the +.BR spu_create () +system call took only three arguments (i.e., there was no +.I neighbor_fd +argument). .SH EXAMPLES See .BR spu_run (2) @@ -273,7 +288,7 @@ for an example of the use of .BR capabilities (7), .BR spufs (7) .SH COLOPHON -This page is part of release 5.09 of the Linux +This page is part of release 5.10 of the Linux .I man-pages project. A description of the project, |