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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /arch/loongarch/include/asm/cpu-features.h
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/loongarch/include/asm/cpu-features.h')
-rw-r--r--arch/loongarch/include/asm/cpu-features.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/arch/loongarch/include/asm/cpu-features.h b/arch/loongarch/include/asm/cpu-features.h
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+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
+ *
+ * Derived from MIPS:
+ * Copyright (C) 2003, 2004 Ralf Baechle
+ * Copyright (C) 2004 Maciej W. Rozycki
+ */
+#ifndef __ASM_CPU_FEATURES_H
+#define __ASM_CPU_FEATURES_H
+
+#include <asm/cpu.h>
+#include <asm/cpu-info.h>
+
+#define cpu_opt(opt) (cpu_data[0].options & (opt))
+#define cpu_has(feat) (cpu_data[0].options & BIT_ULL(feat))
+
+#define cpu_has_loongarch (cpu_has_loongarch32 | cpu_has_loongarch64)
+#define cpu_has_loongarch32 (cpu_data[0].isa_level & LOONGARCH_CPU_ISA_32BIT)
+#define cpu_has_loongarch64 (cpu_data[0].isa_level & LOONGARCH_CPU_ISA_64BIT)
+
+#ifdef CONFIG_32BIT
+# define cpu_has_64bits (cpu_data[0].isa_level & LOONGARCH_CPU_ISA_64BIT)
+# define cpu_vabits 31
+# define cpu_pabits 31
+#endif
+
+#ifdef CONFIG_64BIT
+# define cpu_has_64bits 1
+# define cpu_vabits cpu_data[0].vabits
+# define cpu_pabits cpu_data[0].pabits
+# define __NEED_ADDRBITS_PROBE
+#endif
+
+/*
+ * SMP assumption: Options of CPU 0 are a superset of all processors.
+ * This is true for all known LoongArch systems.
+ */
+#define cpu_has_cpucfg cpu_opt(LOONGARCH_CPU_CPUCFG)
+#define cpu_has_lam cpu_opt(LOONGARCH_CPU_LAM)
+#define cpu_has_ual cpu_opt(LOONGARCH_CPU_UAL)
+#define cpu_has_fpu cpu_opt(LOONGARCH_CPU_FPU)
+#define cpu_has_lsx cpu_opt(LOONGARCH_CPU_LSX)
+#define cpu_has_lasx cpu_opt(LOONGARCH_CPU_LASX)
+#define cpu_has_crc32 cpu_opt(LOONGARCH_CPU_CRC32)
+#define cpu_has_complex cpu_opt(LOONGARCH_CPU_COMPLEX)
+#define cpu_has_crypto cpu_opt(LOONGARCH_CPU_CRYPTO)
+#define cpu_has_lvz cpu_opt(LOONGARCH_CPU_LVZ)
+#define cpu_has_lbt_x86 cpu_opt(LOONGARCH_CPU_LBT_X86)
+#define cpu_has_lbt_arm cpu_opt(LOONGARCH_CPU_LBT_ARM)
+#define cpu_has_lbt_mips cpu_opt(LOONGARCH_CPU_LBT_MIPS)
+#define cpu_has_lbt (cpu_has_lbt_x86|cpu_has_lbt_arm|cpu_has_lbt_mips)
+#define cpu_has_csr cpu_opt(LOONGARCH_CPU_CSR)
+#define cpu_has_tlb cpu_opt(LOONGARCH_CPU_TLB)
+#define cpu_has_watch cpu_opt(LOONGARCH_CPU_WATCH)
+#define cpu_has_vint cpu_opt(LOONGARCH_CPU_VINT)
+#define cpu_has_csripi cpu_opt(LOONGARCH_CPU_CSRIPI)
+#define cpu_has_extioi cpu_opt(LOONGARCH_CPU_EXTIOI)
+#define cpu_has_prefetch cpu_opt(LOONGARCH_CPU_PREFETCH)
+#define cpu_has_pmp cpu_opt(LOONGARCH_CPU_PMP)
+#define cpu_has_perf cpu_opt(LOONGARCH_CPU_PMP)
+#define cpu_has_scalefreq cpu_opt(LOONGARCH_CPU_SCALEFREQ)
+#define cpu_has_flatmode cpu_opt(LOONGARCH_CPU_FLATMODE)
+#define cpu_has_eiodecode cpu_opt(LOONGARCH_CPU_EIODECODE)
+#define cpu_has_guestid cpu_opt(LOONGARCH_CPU_GUESTID)
+#define cpu_has_hypervisor cpu_opt(LOONGARCH_CPU_HYPERVISOR)
+#define cpu_has_ptw cpu_opt(LOONGARCH_CPU_PTW)
+
+#endif /* __ASM_CPU_FEATURES_H */