ef2f826c8f
Loongson-3 has some specific instructions (MMI/SIMD) in coprocessor 2. COP2 isn't independent because it share COP1 (FPU)'s registers. This patch enable the COP2 usage so user-space programs can use the MMI/SIMD instructions. When COP2 exception happens, we enable both COP1 (FPU) and COP2, only in this way the fp context can be saved and restored correctly. Signed-off-by: Huacai Chen <chenhc@lemote.com> Cc: John Crispin <john@phrozen.org> Cc: Steven J. Hill <Steven.Hill@imgtec.com> Cc: Aurelien Jarno <aurelien@aurel32.net> Cc: linux-mips@linux-mips.org Cc: Fuxin Zhang <zhangfx@lemote.com> Cc: Zhangjin Wu <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/7189/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> |
||
|---|---|---|
| .. | ||
| Makefile | ||
| cop2-ex.c | ||
| irq.c | ||
| numa.c | ||
| smp.c | ||
| smp.h | ||