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ARC: unbork FPU save/restore 

Fixes: 2ab402dfd6 "ARC: make start_thread() out-of-line"
CC: <stable@vger.kernel.org>  #3.16
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
hifive-unleashed-5.1
Vineet Gupta 2014-09-27 12:53:41 +05:30
parent be64c997d9
commit 52e9bae938
2 changed files with 9 additions and 8 deletions
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8
arch/arc/include/asm/arcregs.h
View File

@ -189,14 +189,6 @@
#define PAGES_TO_KB(n_pages) ((n_pages) << (PAGE_SHIFT - 10))
#define PAGES_TO_MB(n_pages) (PAGES_TO_KB(n_pages) >> 10)
#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
/* These DPFP regs need to be saved/restored across ctx-sw */
struct arc_fpu {
struct {
unsigned int l, h;
} aux_dpfp[2];
};
#endif
/*
***************************************************************

9
arch/arc/include/asm/processor.h
View File

@ -18,6 +18,15 @@
#include <asm/ptrace.h>
#ifdef CONFIG_ARC_FPU_SAVE_RESTORE
/* These DPFP regs need to be saved/restored across ctx-sw */
struct arc_fpu {
struct {
unsigned int l, h;
} aux_dpfp[2];
};
#endif
/* Arch specific stuff which needs to be saved per task.
* However these items are not so important so as to earn a place in
* struct thread_info