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sh: Provide the FPSCR init through AT_FPUCW.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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3 changed files with 17 additions and 2 deletions
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@ -6,6 +6,12 @@
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* for more of them.
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*/
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/*
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* This entry gives some information about the FPU initialization
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* performed by the kernel.
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*/
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#define AT_FPUCW 18 /* Used FPU control word. */
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#ifdef CONFIG_VSYSCALL
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/*
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* Only define this in the vsyscall case, the entry point to
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@ -169,13 +169,22 @@ extern void __kernel_vsyscall;
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#define VSYSCALL_AUX_ENT
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#endif /* CONFIG_VSYSCALL */
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#ifdef CONFIG_SH_FPU
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#define FPU_AUX_ENT NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT)
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#else
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#define FPU_AUX_ENT
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#endif
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extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
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/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
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#define ARCH_DLINFO \
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do { \
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/* Optional FPU initialization */ \
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FPU_AUX_ENT; \
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\
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/* Optional vsyscall entry */ \
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VSYSCALL_AUX_ENT \
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VSYSCALL_AUX_ENT; \
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\
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/* Cache desc */ \
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NEW_AUX_ENT(AT_L1I_CACHESHAPE, l1i_cache_shape); \
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@ -12,7 +12,7 @@
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#include <asm/types.h>
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#include <asm/ptrace.h>
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#define AT_VECTOR_SIZE_ARCH 4 /* entries in ARCH_DLINFO */
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#define AT_VECTOR_SIZE_ARCH 5 /* entries in ARCH_DLINFO */
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#if defined(CONFIG_CPU_SH4A) || defined(CONFIG_CPU_SH5)
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#define __icbi() \
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