| commit | fc1ac60f7532ff5472fa8720a12ff4ccaa079ee0 | |
| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | |
| Sat, 10 Mar 2007 14:54:14 +0000 (10 23:54 +0900) | ||
| committer | Ralf Baechle <ralf@linux-mips.org> | |
| Mon, 12 Mar 2007 16:17:16 +0000 (12 16:17 +0000) | ||
| tree | 0dda76cf7c58d175be38bff1be2902a534248905 | treesnapshot (tar.gz zip) |
| parent | bd7b36ab55b59ab47d6bedd9fabb7d417371fa9f | commitdiff |
[MIPS] Cleanup FPU ownership management
Currently preempt_disable/preempt_enable are scattered in FPU
ownership management code. This patch makes own_fpu() and lose_fpu()
can save/restore FPU context in itself and make these functions (and
init_fpu() too) preempt-proof. This makes the FPU management codes
much readable. Also this patch introduce raw_cpu_has_fpu macro which
is to be used if the caller did not need atomic context.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Currently preempt_disable/preempt_enable are scattered in FPU
ownership management code. This patch makes own_fpu() and lose_fpu()
can save/restore FPU context in itself and make these functions (and
init_fpu() too) preempt-proof. This makes the FPU management codes
much readable. Also this patch introduce raw_cpu_has_fpu macro which
is to be used if the caller did not need atomic context.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>