vasilito
7686729069
Extract protocol-agnostic FenceTimeline from Intel to shared src/drivers/fence.rs — atomic-based fence tracking suitable for Intel, VIRGL, and AMD drivers. Extract protocol-agnostic SyncobjManager from Intel to shared src/drivers/syncobj.rs — syncobj create/destroy/signal/reset/ wait/query and sync_file fd export/import. Wire both into VirtioDriver: - Add FenceTimeline + SyncobjManager fields - Implement all 5 GpuDriver syncobj trait methods (create, destroy, wait, export_fd, import_fd) - Track fence seqnos in virgl_submit_3d (allocate before submit, signal after completion) Intel fence.rs and syncobj.rs converted to thin re-export modules pointing at shared sources — no behavioral change for Intel driver. This gives Mesa VIRGL userspace the standard DRM syncobj API for GPU/compositor synchronization.
141 lines
5.0 KiB
C
141 lines
5.0 KiB
C
/* Implementation details of FILE streams.
|
|
Copyright (C) 2007-2008, 2010-2017 Free Software Foundation, Inc.
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
/* Many stdio implementations have the same logic and therefore can share
|
|
the same implementation of stdio extension API, except that some fields
|
|
have different naming conventions, or their access requires some casts. */
|
|
|
|
|
|
/* BSD stdio derived implementations. */
|
|
|
|
#if defined __NetBSD__ /* NetBSD */
|
|
/* Get __NetBSD_Version__. */
|
|
# include <sys/param.h>
|
|
#endif
|
|
|
|
#include <errno.h> /* For detecting Plan9. */
|
|
|
|
#if defined __sferror || defined __DragonFly__ || defined __ANDROID__
|
|
/* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Minix 3, Android */
|
|
|
|
# if defined __DragonFly__ /* DragonFly */
|
|
/* See <http://www.dragonflybsd.org/cvsweb/src/lib/libc/stdio/priv_stdio.h?rev=HEAD&content-type=text/x-cvsweb-markup>. */
|
|
# define fp_ ((struct { struct __FILE_public pub; \
|
|
struct { unsigned char *_base; int _size; } _bf; \
|
|
void *cookie; \
|
|
void *_close; \
|
|
void *_read; \
|
|
void *_seek; \
|
|
void *_write; \
|
|
struct { unsigned char *_base; int _size; } _ub; \
|
|
int _ur; \
|
|
unsigned char _ubuf[3]; \
|
|
unsigned char _nbuf[1]; \
|
|
struct { unsigned char *_base; int _size; } _lb; \
|
|
int _blksize; \
|
|
fpos_t _offset; \
|
|
/* More fields, not relevant here. */ \
|
|
} *) fp)
|
|
/* See <http://www.dragonflybsd.org/cvsweb/src/include/stdio.h?rev=HEAD&content-type=text/x-cvsweb-markup>. */
|
|
# define _p pub._p
|
|
# define _flags pub._flags
|
|
# define _r pub._r
|
|
# define _w pub._w
|
|
# else
|
|
# define fp_ fp
|
|
# endif
|
|
|
|
# if (defined __NetBSD__ && __NetBSD_Version__ >= 105270000) || defined __OpenBSD__ || defined __minix || defined __ANDROID__ /* NetBSD >= 1.5ZA, OpenBSD, Minix 3, Android */
|
|
/* See <http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/stdio/fileext.h?rev=HEAD&content-type=text/x-cvsweb-markup>
|
|
and <http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdio/fileext.h?rev=HEAD&content-type=text/x-cvsweb-markup> */
|
|
struct __sfileext
|
|
{
|
|
struct __sbuf _ub; /* ungetc buffer */
|
|
/* More fields, not relevant here. */
|
|
};
|
|
# define fp_ub ((struct __sfileext *) fp->_ext._base)->_ub
|
|
# else /* FreeBSD, NetBSD <= 1.5Z, DragonFly, Mac OS X, Cygwin, Android */
|
|
# define fp_ub fp_->_ub
|
|
# endif
|
|
|
|
# define HASUB(fp) (fp_ub._base != NULL)
|
|
|
|
#endif
|
|
|
|
|
|
/* SystemV derived implementations. */
|
|
|
|
#ifdef __TANDEM /* NonStop Kernel */
|
|
# ifndef _IOERR
|
|
/* These values were determined by the program 'stdioext-flags' at
|
|
<http://lists.gnu.org/archive/html/bug-gnulib/2010-12/msg00165.html>. */
|
|
# define _IOERR 0x40
|
|
# define _IOREAD 0x80
|
|
# define _IOWRT 0x4
|
|
# define _IORW 0x100
|
|
# endif
|
|
#endif
|
|
|
|
#if defined _IOERR
|
|
|
|
# if defined __sun && defined _LP64 /* Solaris/{SPARC,AMD64} 64-bit */
|
|
# define fp_ ((struct { unsigned char *_ptr; \
|
|
unsigned char *_base; \
|
|
unsigned char *_end; \
|
|
long _cnt; \
|
|
int _file; \
|
|
unsigned int _flag; \
|
|
} *) fp)
|
|
# else
|
|
# define fp_ fp
|
|
# endif
|
|
|
|
# if defined _SCO_DS /* OpenServer */
|
|
# define _cnt __cnt
|
|
# define _ptr __ptr
|
|
# define _base __base
|
|
# define _flag __flag
|
|
# endif
|
|
|
|
#elif (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ /* newer Windows with MSVC */
|
|
|
|
/* <stdio.h> does not define the innards of FILE any more. */
|
|
# define WINDOWS_OPAQUE_FILE
|
|
|
|
struct _gl_real_FILE
|
|
{
|
|
/* Note: Compared to older Windows and to mingw, it has the fields
|
|
_base and _cnt swapped. */
|
|
unsigned char *_ptr;
|
|
unsigned char *_base;
|
|
int _cnt;
|
|
int _flag;
|
|
int _file;
|
|
int _charbuf;
|
|
int _bufsiz;
|
|
};
|
|
# define fp_ ((struct _gl_real_FILE *) fp)
|
|
|
|
/* These values were determined by a program similar to the one at
|
|
<http://lists.gnu.org/archive/html/bug-gnulib/2010-12/msg00165.html>. */
|
|
# define _IOREAD 0x1
|
|
# define _IOWRT 0x2
|
|
# define _IORW 0x4
|
|
# define _IOEOF 0x8
|
|
# define _IOERR 0x10
|
|
|
|
#endif
|