diff options
Diffstat (limited to 'src/dpdk_lib18/librte_eal/common/include/arch/ppc_64/rte_cpuflags.h')
| -rwxr-xr-x | src/dpdk_lib18/librte_eal/common/include/arch/ppc_64/rte_cpuflags.h | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/src/dpdk_lib18/librte_eal/common/include/arch/ppc_64/rte_cpuflags.h b/src/dpdk_lib18/librte_eal/common/include/arch/ppc_64/rte_cpuflags.h deleted file mode 100755 index df450470..00000000 --- a/src/dpdk_lib18/librte_eal/common/include/arch/ppc_64/rte_cpuflags.h +++ /dev/null @@ -1,187 +0,0 @@ -/* - * BSD LICENSE - * - * Copyright (C) IBM Corporation 2014. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of IBM Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ - -#ifndef _RTE_CPUFLAGS_PPC_64_H_ -#define _RTE_CPUFLAGS_PPC_64_H_ - -#ifdef __cplusplus -extern "C" { -#endif - -#include <elf.h> -#include <fcntl.h> -#include <assert.h> -#include <unistd.h> - -#include "generic/rte_cpuflags.h" - -/* Symbolic values for the entries in the auxiliary table */ -#define AT_HWCAP 16 -#define AT_HWCAP2 26 - -/* software based registers */ -enum cpu_register_t { - REG_HWCAP = 0, - REG_HWCAP2, -}; - -/** - * Enumeration of all CPU features supported - */ -enum rte_cpu_flag_t { - RTE_CPUFLAG_PPC_LE = 0, - RTE_CPUFLAG_TRUE_LE, - RTE_CPUFLAG_PSERIES_PERFMON_COMPAT, - RTE_CPUFLAG_VSX, - RTE_CPUFLAG_ARCH_2_06, - RTE_CPUFLAG_POWER6_EXT, - RTE_CPUFLAG_DFP, - RTE_CPUFLAG_PA6T, - RTE_CPUFLAG_ARCH_2_05, - RTE_CPUFLAG_ICACHE_SNOOP, - RTE_CPUFLAG_SMT, - RTE_CPUFLAG_BOOKE, - RTE_CPUFLAG_CELLBE, - RTE_CPUFLAG_POWER5_PLUS, - RTE_CPUFLAG_POWER5, - RTE_CPUFLAG_POWER4, - RTE_CPUFLAG_NOTB, - RTE_CPUFLAG_EFP_DOUBLE, - RTE_CPUFLAG_EFP_SINGLE, - RTE_CPUFLAG_SPE, - RTE_CPUFLAG_UNIFIED_CACHE, - RTE_CPUFLAG_4xxMAC, - RTE_CPUFLAG_MMU, - RTE_CPUFLAG_FPU, - RTE_CPUFLAG_ALTIVEC, - RTE_CPUFLAG_PPC601, - RTE_CPUFLAG_PPC64, - RTE_CPUFLAG_PPC32, - RTE_CPUFLAG_TAR, - RTE_CPUFLAG_LSEL, - RTE_CPUFLAG_EBB, - RTE_CPUFLAG_DSCR, - RTE_CPUFLAG_HTM, - RTE_CPUFLAG_ARCH_2_07, - /* The last item */ - RTE_CPUFLAG_NUMFLAGS,/**< This should always be the last! */ -}; - -static const struct feature_entry cpu_feature_table[] = { - FEAT_DEF(PPC_LE, 0x00000001, 0, REG_HWCAP, 0) - FEAT_DEF(TRUE_LE, 0x00000001, 0, REG_HWCAP, 1) - FEAT_DEF(PSERIES_PERFMON_COMPAT, 0x00000001, 0, REG_HWCAP, 6) - FEAT_DEF(VSX, 0x00000001, 0, REG_HWCAP, 7) - FEAT_DEF(ARCH_2_06, 0x00000001, 0, REG_HWCAP, 8) - FEAT_DEF(POWER6_EXT, 0x00000001, 0, REG_HWCAP, 9) - FEAT_DEF(DFP, 0x00000001, 0, REG_HWCAP, 10) - FEAT_DEF(PA6T, 0x00000001, 0, REG_HWCAP, 11) - FEAT_DEF(ARCH_2_05, 0x00000001, 0, REG_HWCAP, 12) - FEAT_DEF(ICACHE_SNOOP, 0x00000001, 0, REG_HWCAP, 13) - FEAT_DEF(SMT, 0x00000001, 0, REG_HWCAP, 14) - FEAT_DEF(BOOKE, 0x00000001, 0, REG_HWCAP, 15) - FEAT_DEF(CELLBE, 0x00000001, 0, REG_HWCAP, 16) - FEAT_DEF(POWER5_PLUS, 0x00000001, 0, REG_HWCAP, 17) - FEAT_DEF(POWER5, 0x00000001, 0, REG_HWCAP, 18) - FEAT_DEF(POWER4, 0x00000001, 0, REG_HWCAP, 19) - FEAT_DEF(NOTB, 0x00000001, 0, REG_HWCAP, 20) - FEAT_DEF(EFP_DOUBLE, 0x00000001, 0, REG_HWCAP, 21) - FEAT_DEF(EFP_SINGLE, 0x00000001, 0, REG_HWCAP, 22) - FEAT_DEF(SPE, 0x00000001, 0, REG_HWCAP, 23) - FEAT_DEF(UNIFIED_CACHE, 0x00000001, 0, REG_HWCAP, 24) - FEAT_DEF(4xxMAC, 0x00000001, 0, REG_HWCAP, 25) - FEAT_DEF(MMU, 0x00000001, 0, REG_HWCAP, 26) - FEAT_DEF(FPU, 0x00000001, 0, REG_HWCAP, 27) - FEAT_DEF(ALTIVEC, 0x00000001, 0, REG_HWCAP, 28) - FEAT_DEF(PPC601, 0x00000001, 0, REG_HWCAP, 29) - FEAT_DEF(PPC64, 0x00000001, 0, REG_HWCAP, 30) - FEAT_DEF(PPC32, 0x00000001, 0, REG_HWCAP, 31) - FEAT_DEF(TAR, 0x00000001, 0, REG_HWCAP2, 26) - FEAT_DEF(LSEL, 0x00000001, 0, REG_HWCAP2, 27) - FEAT_DEF(EBB, 0x00000001, 0, REG_HWCAP2, 28) - FEAT_DEF(DSCR, 0x00000001, 0, REG_HWCAP2, 29) - FEAT_DEF(HTM, 0x00000001, 0, REG_HWCAP2, 30) - FEAT_DEF(ARCH_2_07, 0x00000001, 0, REG_HWCAP2, 31) -}; - -/* - * Read AUXV software register and get cpu features for Power - */ -static inline void -rte_cpu_get_features(__attribute__((unused)) uint32_t leaf, - __attribute__((unused)) uint32_t subleaf, cpuid_registers_t out) -{ - int auxv_fd; - Elf64_auxv_t auxv; - - auxv_fd = open("/proc/self/auxv", O_RDONLY); - assert(auxv_fd); - while (read(auxv_fd, &auxv, - sizeof(Elf64_auxv_t)) == sizeof(Elf64_auxv_t)) { - if (auxv.a_type == AT_HWCAP) - out[REG_HWCAP] = auxv.a_un.a_val; - else if (auxv.a_type == AT_HWCAP2) - out[REG_HWCAP2] = auxv.a_un.a_val; - } -} - -/* - * Checks if a particular flag is available on current machine. - */ -static inline int -rte_cpu_get_flag_enabled(enum rte_cpu_flag_t feature) -{ - const struct feature_entry *feat; - cpuid_registers_t regs = {0}; - - if (feature >= RTE_CPUFLAG_NUMFLAGS) - /* Flag does not match anything in the feature tables */ - return -ENOENT; - - feat = &cpu_feature_table[feature]; - - if (!feat->leaf) - /* This entry in the table wasn't filled out! */ - return -EFAULT; - - /* get the cpuid leaf containing the desired feature */ - rte_cpu_get_features(feat->leaf, feat->subleaf, regs); - - /* check if the feature is enabled */ - return (regs[feat->reg] >> feat->bit) & 1; -} - -#ifdef __cplusplus -} -#endif - -#endif /* _RTE_CPUFLAGS_PPC_64_H_ */ |