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author | Reinhard Tartler <siretart@tauware.de> | 2011-10-10 17:43:39 +0200 |
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committer | Reinhard Tartler <siretart@tauware.de> | 2011-10-10 17:43:39 +0200 |
commit | f4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch) | |
tree | 2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/extras/Mesa/src/mesa/drivers/dri/common/mmio.h | |
parent | a840692edc9c6d19cd7c057f68e39c7d95eb767d (diff) | |
download | nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.tar.gz nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.tar.bz2 nx-libs-f4092abdf94af6a99aff944d6264bc1284e8bdd4.zip |
Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:
Imported nx-X11-3.1.0-1.tar.gz
into Git repository
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/common/mmio.h')
-rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/common/mmio.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/mmio.h b/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/mmio.h new file mode 100644 index 000000000..2b7b4123e --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/mmio.h @@ -0,0 +1,62 @@ +/* + * (C) Copyright IBM Corporation 2004 + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, and/or sell copies of the Software, and to permit persons to whom + * the Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL + * IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +/** + * \file mmio.h + * Functions for properly handling memory mapped IO on various platforms. + * + * \author Ian Romanick <idr@us.ibm.com> + */ + + +#ifndef MMIO_H +#define MMIO_H + +#include "glheader.h" + +#if defined( __powerpc__ ) + +static __inline__ u_int32_t +read_MMIO_LE32( volatile void * base, unsigned long offset ) +{ + u_int32_t val; + + __asm__ __volatile__( "lwbrx %0, %1, %2 ; eieio" + : "=r" (val) + : "b" (base), "r" (offset) ); + return val; +} + +#else + +static __inline__ u_int32_t +read_MMIO_LE32( volatile void * base, unsigned long offset ) +{ + volatile u_int32_t * p = (volatile u_int32_t *) (((volatile char *) base) + offset); + return LE32_TO_CPU( p[0] ); +} + +#endif + +#endif /* MMIO_H */ |