Alan Kao 9411ec60c2 Auto-detect whether a FPU exists ... We expect that a kernel with CONFIG_FPU=y can still support no-FPU machines. To do so, the kernel should first examine the existence of a FPU, then do nothing if a FPU does exist; otherwise, it should disable/bypass all FPU-related functions. In this patch, a new global variable, has_fpu, is created and determined when parsing the hardware capability from device tree during booting. This variable is used in those FPU-related functions. Signed-off-by: Alan Kao <alankao@andestech.com> Cc: Greentime Hu <greentime@andestech.com> Cc: Vincent Chen <vincentc@andestech.com> Cc: Zong Li <zong@andestech.com> Cc: Nick Hu <nickhu@andestech.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>		2018-10-22 17:02:23 -07:00
..
configs	irqchip: add a SiFive PLIC driver	2018-08-13 08:31:32 -07:00
include	Auto-detect whether a FPU exists	2018-10-22 17:02:23 -07:00
kernel	Auto-detect whether a FPU exists	2018-10-22 17:02:23 -07:00
lib	RISC-V: implement __lshrti3.	2018-08-13 08:31:30 -07:00
mm	mm: convert return type of handle_mm_fault() caller to vm_fault_t	2018-08-17 16:20:28 -07:00
Kconfig	Allow to disable FPU support	2018-10-22 17:02:23 -07:00
Kconfig.debug	Kconfig: consolidate the "Kernel hacking" menu	2018-08-02 08:06:48 +09:00
Makefile	Allow to disable FPU support	2018-10-22 17:02:23 -07:00