3  * x86 FPU boot time init code:
5 #include <asm/fpu/api.h>
41 		fpstate_init_soft(&current->thread.fpu.fpstate->regs.soft);  in fpu__init_cpu_generic()
48  * Enable all supported FPU features. Called when a CPU is brought online:
69 	pr_info("x86/fpu: Probing for FPU: FSW=0x%04hx FCW=0x%04hx\n", fsw, fcw);  in fpu__probe_without_cpuid()
86 		pr_emerg("x86/fpu: Giving up, no FPU found and no math emulation present\n");  in fpu__init_system_early_generic()
94  * Boot time FPU feature detection code:
123  * Once per bootup FPU initialization sequences that will run on most x86 CPUs:
128 	 * Set up the legacy init FPU context. Will be updated when the  in fpu__init_system_generic()
147  * We append the 'struct fpu' to the task_struct:
157 	task_size -= sizeof(current->thread.fpu.__fpstate.regs);  in fpu__init_task_struct_size()
166 	 * We dynamically size 'struct fpu', so we require that  in fpu__init_task_struct_size()
172 	CHECK_MEMBER_AT_END_OF(struct fpu, __fpstate);  in fpu__init_task_struct_size()
173 	CHECK_MEMBER_AT_END_OF(struct thread_struct, fpu);  in fpu__init_task_struct_size()
180  * Set up the user and kernel xstate sizes based on the legacy FPU context size.
207 	fpstate_reset(&current->thread.fpu);  in fpu__init_system_xstate_size_legacy()
212  * FPU state that is later cloned into all processes:
216 	fpstate_reset(&current->thread.fpu);  in fpu__init_system()
220 	 * The FPU has to be operational for some of the  in fpu__init_system()
221 	 * later FPU init activities:  in fpu__init_system()