diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/ppc')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/ppc/common_ppc.c | 88 | ||||
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/ppc/common_ppc_features.h | 51 |
2 files changed, 139 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/ppc/common_ppc.c b/nx-X11/extras/Mesa/src/mesa/ppc/common_ppc.c new file mode 100644 index 000000000..13526df78 --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/ppc/common_ppc.c @@ -0,0 +1,88 @@ +/* + * (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 common_ppc.c + * Check CPU capabilities & initialize optimized funtions for this particular + * processor. + * + * \author Ian Romanick <idr@us.ibm.com> + */ + +#include <stdio.h> +#include <unistd.h> +#include <sys/types.h> + +#ifdef USE_PPC_ASM +#include <elf.h> +#endif + +unsigned long _mesa_ppc_cpu_features = 0; + +/** + * Detect CPU features and install optimized transform and lighting routines. + * Currently, CPU features are only detected. The optimized routines have + * yet to be written. + * + * \bug + * This routine is highly specific to Linux kernel 2.6. I'm still waiting + * to hear back from the glibc folk on how to do this "right". + */ + +void _mesa_init_all_ppc_transform_asm( void ) +{ +#ifdef USE_PPC_ASM + const pid_t my_pid = getpid(); + char file_name[32]; + FILE * f; +#ifdef __powerpc64__ + Elf64_auxv_t v; +#else + Elf32_auxv_t v; +#endif + + sprintf( file_name, "/proc/%u/auxv", (unsigned) my_pid ); + f = fopen( file_name, "rb" ); + if ( f != NULL ) { + while( 1 ) { + ssize_t elem = fread( & v, sizeof( v ), 1, f ); + + if ( elem < 1 ) { + break; + } + + if ( v.a_type == AT_HWCAP ) { + _mesa_ppc_cpu_features = v.a_un.a_val; + break; + } + } + + fclose( f ); + } + +# ifndef USE_VMX_ASM + _mesa_ppc_cpu_features &= ~PPC_FEATURES_HAS_ALTIVEC; +# endif +#endif +} diff --git a/nx-X11/extras/Mesa/src/mesa/ppc/common_ppc_features.h b/nx-X11/extras/Mesa/src/mesa/ppc/common_ppc_features.h new file mode 100644 index 000000000..4d46ca04c --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/ppc/common_ppc_features.h @@ -0,0 +1,51 @@ +/* + * (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 common_ppc_features.h + * Interface for determining which CPU features were detected. + * + * \author Ian Romanick <idr@us.ibm.com> + */ + +#ifndef COMMON_PPC_FEATURES_H +#define COMMON_PPC_FEATURES_H + +#ifdef USE_PPC_ASM +#include <asm/cputable.h> + +extern unsigned long _mesa_ppc_cpu_features; + + +/* The PPC_FEATURE_* values come from asm/cputable.h. Should we define + * versions of them here if that file does not exist? This will only + * matter once these code paths are supported on non-Linux platforms. + */ + +#define cpu_has_64 ((_mesa_ppc_cpu_features & PPC_FEATURE_64) != 0) +#define cpu_has_vmx ((_mesa_ppc_cpu_features & PPC_FEATURE_HAS_ALTIVEC) != 0) +#define cpu_has_fpu ((_mesa_ppc_cpu_features & PPC_FEATURE_HAS_FPU) != 0) + +#endif /* USE_PPC_ASM */ +#endif /* COMMON_PPC_FEATURES_H */ |