diff options
| author |   Anton Blanchard <anton@samba.org> | 2015-10-29 11:43:57 +1100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2015-12-01 13:52:24 +1100 |
| commit | af1bbc3dd3d501d27da72e1764afe5f5b0d3882d (patch) | |
| tree | 99e12a987162dce90c51b7f7ccb2b3e23b154c4b /arch/powerpc/include/asm/processor.h | |
| parent | powerpc: Remove redundant mflr in _switch (diff) | |
| download | linux-dev-af1bbc3dd3d501d27da72e1764afe5f5b0d3882d.tar.xz linux-dev-af1bbc3dd3d501d27da72e1764afe5f5b0d3882d.zip | |
powerpc: Remove UP only lazy floating point and vector optimisations
The UP only lazy floating point and vector optimisations were written
back when SMP was not common, and neither glibc nor gcc used vector
instructions. Now SMP is very common, glibc aggressively uses vector
instructions and gcc autovectorises.
We want to add new optimisations that apply to both UP and SMP, but
in preparation for that remove these UP only optimisations.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/processor.h')
| -rw-r--r-- | arch/powerpc/include/asm/processor.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index c273f3e0ba84..a2e891840806 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -88,12 +88,6 @@ struct task_struct; void start_thread(struct pt_regs *regs, unsigned long fdptr, unsigned long sp); void release_thread(struct task_struct *); -/* Lazy FPU handling on uni-processor */ -extern struct task_struct *last_task_used_math; -extern struct task_struct *last_task_used_altivec; -extern struct task_struct *last_task_used_vsx; -extern struct task_struct *last_task_used_spe; - #ifdef CONFIG_PPC32 #if CONFIG_TASK_SIZE > CONFIG_KERNEL_START |