1*fb1b10abSAndroid Build Coastguard Worker /* 2*fb1b10abSAndroid Build Coastguard Worker * Copyright (c) 2021 Loongson Technology Corporation Limited 3*fb1b10abSAndroid Build Coastguard Worker * Contributed by Jin Bo <[email protected]> 4*fb1b10abSAndroid Build Coastguard Worker * Contributed by Lu Wang <[email protected]> 5*fb1b10abSAndroid Build Coastguard Worker * 6*fb1b10abSAndroid Build Coastguard Worker * Use of this source code is governed by a BSD-style license 7*fb1b10abSAndroid Build Coastguard Worker * that can be found in the LICENSE file in the root of the source 8*fb1b10abSAndroid Build Coastguard Worker * tree. An additional intellectual property rights grant can be found 9*fb1b10abSAndroid Build Coastguard Worker * in the file PATENTS. All contributing project authors may 10*fb1b10abSAndroid Build Coastguard Worker * be found in the AUTHORS file in the root of the source tree. 11*fb1b10abSAndroid Build Coastguard Worker */ 12*fb1b10abSAndroid Build Coastguard Worker 13*fb1b10abSAndroid Build Coastguard Worker #include "./vpx_config.h" 14*fb1b10abSAndroid Build Coastguard Worker #include "vpx_ports/loongarch.h" 15*fb1b10abSAndroid Build Coastguard Worker 16*fb1b10abSAndroid Build Coastguard Worker #define LOONGARCH_CFG2 0x02 17*fb1b10abSAndroid Build Coastguard Worker #define LOONGARCH_CFG2_LSX (1 << 6) 18*fb1b10abSAndroid Build Coastguard Worker #define LOONGARCH_CFG2_LASX (1 << 7) 19*fb1b10abSAndroid Build Coastguard Worker 20*fb1b10abSAndroid Build Coastguard Worker #if CONFIG_RUNTIME_CPU_DETECT 21*fb1b10abSAndroid Build Coastguard Worker #if defined(__loongarch__) && defined(__linux__) loongarch_cpu_caps(void)22*fb1b10abSAndroid Build Coastguard Workerint loongarch_cpu_caps(void) { 23*fb1b10abSAndroid Build Coastguard Worker int reg = 0; 24*fb1b10abSAndroid Build Coastguard Worker int flag = 0; 25*fb1b10abSAndroid Build Coastguard Worker 26*fb1b10abSAndroid Build Coastguard Worker __asm__ volatile("cpucfg %0, %1 \n\t" : "+&r"(reg) : "r"(LOONGARCH_CFG2)); 27*fb1b10abSAndroid Build Coastguard Worker if (reg & LOONGARCH_CFG2_LSX) flag |= HAS_LSX; 28*fb1b10abSAndroid Build Coastguard Worker 29*fb1b10abSAndroid Build Coastguard Worker if (reg & LOONGARCH_CFG2_LASX) flag |= HAS_LASX; 30*fb1b10abSAndroid Build Coastguard Worker 31*fb1b10abSAndroid Build Coastguard Worker return flag; 32*fb1b10abSAndroid Build Coastguard Worker } 33*fb1b10abSAndroid Build Coastguard Worker #else /* end __loongarch__ && __linux__ */ 34*fb1b10abSAndroid Build Coastguard Worker #error \ 35*fb1b10abSAndroid Build Coastguard Worker "--enable-runtime-cpu-detect selected, but no CPU detection method " \ 36*fb1b10abSAndroid Build Coastguard Worker "available for your platform. Reconfigure with --disable-runtime-cpu-detect." 37*fb1b10abSAndroid Build Coastguard Worker #endif 38*fb1b10abSAndroid Build Coastguard Worker #else /* end CONFIG_RUNTIME_CPU_DETECT */ loongarch_cpu_caps(void)39*fb1b10abSAndroid Build Coastguard Workerint loongarch_cpu_caps(void) { return 0; } 40*fb1b10abSAndroid Build Coastguard Worker #endif 41