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Commit 98c4ecde authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: Provide the FPSCR init through AT_FPUCW. 



Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent a9f1365e

include/asm-sh/auxvec.h

+6 −0
Original line number Diff line number Diff line
@@ -6,6 +6,12 @@ 
 * for more of them.

 */



/*

 * This entry gives some information about the FPU initialization

 * performed by the kernel.

 */

#define AT_FPUCW		18	/* Used FPU control word.  */



#ifdef CONFIG_VSYSCALL

/*

 * Only define this in the vsyscall case, the entry point to

include/asm-sh/elf.h

+10 −1
Original line number Diff line number Diff line
@@ -169,13 +169,22 @@ extern void __kernel_vsyscall; 
#define VSYSCALL_AUX_ENT

#endif /* CONFIG_VSYSCALL */



#ifdef CONFIG_SH_FPU

#define FPU_AUX_ENT	NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT)

#else

#define FPU_AUX_ENT

#endif



extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;



/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */

#define ARCH_DLINFO						\

do {								\

	/* Optional FPU initialization */			\

	FPU_AUX_ENT;						\

								\

	/* Optional vsyscall entry */				\

	VSYSCALL_AUX_ENT					\

	VSYSCALL_AUX_ENT;					\

								\

	/* Cache desc */					\

	NEW_AUX_ENT(AT_L1I_CACHESHAPE, l1i_cache_shape);	\

include/asm-sh/system.h

+1 −1
Original line number Diff line number Diff line
@@ -12,7 +12,7 @@ 
#include <asm/types.h>

#include <asm/ptrace.h>



#define AT_VECTOR_SIZE_ARCH 4 /* entries in ARCH_DLINFO */

#define AT_VECTOR_SIZE_ARCH 5 /* entries in ARCH_DLINFO */



#if defined(CONFIG_CPU_SH4A) || defined(CONFIG_CPU_SH5)

#define __icbi()			\