Lines Matching refs:FP
30 No FP registers mode
39 Unshared FP registers mode
55 Shared FP registers mode
79 The Shared FP registers mode is the default Floating Point
83 treats *all* threads as FPU users when shared FP registers mode is enabled.
88 Pretag a thread that intends to use the FP registers by
106 point registers, the kernel restores the *callee-saved* FP registers of
107 the switched-in thread and the *caller-saved* FP context is restored from
108 the thread's stack. Thus, the kernel does not save or restore the FP
109 context of threads that are not using the FP registers.
112 an extra 72 bytes of stack space where the callee-saved FP context can
134 not to save or restore its FP context during thread context switching.
140 The Shared FP registers mode is the default Floating Point
142 using FP/SIMD registers, and library functions such as memcpy
159 Each thread object becomes 512 bytes larger when Shared FP registers mode
177 not to save or restore its FP context during thread context switching.
183 point registers, the kernel restores the *callee-saved* FP registers of
184 the switched-in thread and the *caller-saved* FP context is restored from
185 the thread's stack. Thus, the kernel does not save or restore the FP
186 context of threads that are not using the FP registers. An extra 16 bytes
223 when Shared FP registers mode is enabled.
265 Thread type FP register use Extra stack space required
341 To configure unshared FP registers mode, enable the :kconfig:option:`CONFIG_FPU`
345 To configure shared FP registers mode, enable both the :kconfig:option:`CONFIG_FPU`