Lines Matching full:floating

50  * Floating point registers are handled using a lazy save/restore mechanism
53  * 'current_fp' field to keep track of the thread that "owns" the floating
54  * point registers.  Floating point registers consist of ST0->ST7 (x87 FPU and
57  * All floating point registers are considered 'volatile' thus they will only
60  * Floating point registers are currently NOT scrubbed, and are subject to
123 	/* Eager floating point state restore logic
127 	 * sensitive data in the floating point/SIMD registers in a system
130 	 * Unconditionally save/restore floating point registers on context
149 	 * doesn't have floating point enabled) to prevent the "device not
155 	 * utilize floating point operations.  However, the code responsible
165 	 * Determine whether the incoming thread utilizes floating point regs
174 	 * The incoming thread uses floating point registers:
175 	 * Was it the last thread to use floating point registers?
176 	 * If so, there there is no need to restore the floating point context.
185 	 * The incoming thread uses floating point registers and it was _not_
196 	 * The incoming thread uses floating point registers and it was _not_
236 	 * Restore floating point context of the incoming thread.
266 	/* record that the incoming thread "owns" the floating point registers */
272 	 * Branch point when none of the floating point registers need to be
280 	 * Leave CR0[TS] clear if incoming thread utilizes the floating point
288 	 * The incoming thread does NOT currently utilize the floating point