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

sh: Provide the FPSCR init through AT_FPUCW.

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