Searched refs:cpacr (Results 1 - 1 of 1) sorted by relevance

/fuchsia/zircon/kernel/arch/arm64/
H A Dfpu.cpp16 /* FPEN bits in the cpacr register
23 static inline bool is_fpu_enabled(uint32_t cpacr) { argument
24 return !!(BITS(cpacr, 21, 20) != 0);
93 uint64_t cpacr = ARM64_READ_SYSREG(cpacr_el1); local
94 if (is_fpu_enabled((uint32_t)cpacr)) {
101 ARM64_WRITE_SYSREG(cpacr_el1, cpacr & ~FPU_ENABLE_MASK);
112 uint64_t cpacr = ARM64_READ_SYSREG(cpacr_el1); local
113 DEBUG_ASSERT(!is_fpu_enabled((uint32_t)cpacr));
116 cpacr |= FPU_ENABLE_MASK;
117 ARM64_WRITE_SYSREG(cpacr_el1, cpacr);
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