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Initial support for PowerPC specific code in Mesa and DRI drivers. DRI

Browse source 
drivers built on PowerPC systems should now show things like "PowerPC" or
"PowerPC/Altivec" in the GL_RENDERER string.

The VMX moniker is used for Altivec/Velocity Engine/VMX SIMD additions.  I
chose this not because I work for IBM but because it's a LOT shorter to
type. :)
This commit is contained in:
Ian Romanick 2004-10-13 19:56:15 +00:00
parent b72ed81818
commit 447cdd536f
7 changed files with 194 additions and 7 deletions
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1
Makefile
View file

@ -75,6 +75,7 @@ linux-debug \
linux-dri \
linux-dri-x86 \
linux-dri-x86-64 \
linux-dri-ppc \
linux-glide \
linux-icc \
linux-icc-static \

17
configs/linux-dri-ppc Normal file
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@ -0,0 +1,17 @@
# -*-makefile-*-
# Configuration for linux-dri: Linux DRI hardware drivers for XFree86 & others
include $(TOP)/configs/linux-dri
CONFIG_NAME = linux-dri-ppc
OPT_FLAGS = -Os -mcpu=603
PIC_FLAGS = -fPIC
ASM_FLAGS = -DUSE_PPC_ASM -DUSE_VMX_ASM
ASM_SOURCES = $(PPC_SOURCES)
# Build only the drivers for cards that exist on PowerPC. At some point MGA
# will be added, but not yet.
DRI_DIRS = dri_client mach64 r128 r200 radeon tdfx

32
src/mesa/drivers/dri/common/utils.c
View file

@ -20,11 +20,14 @@
* 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.
*
* Authors:
* Ian Romanick <idr@us.ibm.com>
*/
/* $XFree86:$ */
/**
* \file utils.c
* Utility functions for DRI drivers.
*
* \author Ian Romanick <idr@us.ibm.com>
*/
#include <string.h>
#include <stdlib.h>
@ -40,6 +43,10 @@
#include "x86/common_x86_asm.h"
#endif
#if defined(USE_PPC_ASM)
#include "ppc/common_ppc_features.h"
#endif
unsigned
driParseDebugString( const char * debug,
const struct dri_debug_control * control )
@ -141,6 +148,23 @@ driGetRendererString( char * buffer, const char * hardware_name,
cpu[0] = " SPARC";
next = 1;
#elif defined(USE_PPC_ASM)
if ( _mesa_ppc_cpu_features ) {
cpu[next] = (cpu_has_64) ? " PowerPC 64" : " PowerPC";
next++;
}
# ifdef USE_VMX_ASM
if ( cpu_has_vmx ) {
cpu[next] = "/Altivec";
next++;
}
# endif
if ( ! cpu_has_fpu ) {
cpu[next] = "/No FPU";
next++;
}
#endif
for ( i = 0 ; i < next ; i++ ) {

9
src/mesa/math/m_xform.c
View file

@ -55,6 +55,10 @@
#include "sparc/sparc.h"
#endif
#ifdef USE_PPC_ASM
#include "ppc/common_ppc_features.h"
#endif
clip_func _mesa_clip_tab[5];
clip_func _mesa_clip_np_tab[5];
dotprod_func _mesa_dotprod_tab[5];
@ -204,9 +208,10 @@ _math_init_transformation( void )
#ifdef USE_X86_ASM
_mesa_init_all_x86_transform_asm();
#endif
#ifdef USE_SPARC_ASM
#elif defined( USE_SPARC_ASM )
_mesa_init_all_sparc_transform_asm();
#elif defined( USE_PPC_ASM )
_mesa_init_all_ppc_transform_asm();
#endif
}

88
src/mesa/ppc/common_ppc.c Normal file
View file

@ -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
}

51
src/mesa/ppc/common_ppc_features.h Normal file
View file

@ -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 */

3
src/mesa/sources
View file

@ -150,7 +150,8 @@ ASM_C_SOURCES = \
x86/x86.c \
x86/3dnow.c \
x86/sse.c \
sparc/sparc.c
sparc/sparc.c \
ppc/common_ppc.c
X86_SOURCES = \
x86/common_x86_asm.S \