ae1f8d793a
When building with 'make W=1', the compiler warns about any function definition that does not come with a prototype in a header, to ensure it matches what the caller expects. This includes functions that are only ever caller from assembly code and don't technically need a declaration: arch/arm/kernel/ftrace.c:227:6: error: no previous prototype for 'prepare_ftrace_return' arch/arm/kernel/ptrace.c:850:16: error: no previous prototype for 'syscall_trace_enter' arch/arm/kernel/ptrace.c:878:17: error: no previous prototype for 'syscall_trace_exit' arch/arm/kernel/signal.c:601:1: error: no previous prototype for 'do_work_pending' arch/arm/kernel/signal.c:672:17: error: no previous prototype for 'do_rseq_syscall' arch/arm/kernel/suspend.c:75:6: error: no previous prototype for '__cpu_suspend_save' arch/arm/kernel/traps.c:451:17: error: no previous prototype for 'do_undefinstr' arch/arm/kernel/traps.c:516:39: error: no previous prototype for 'handle_fiq_as_nmi' arch/arm/kernel/traps.c:535:17: error: no previous prototype for 'bad_mode' arch/arm/kernel/traps.c:608:16: error: no previous prototype for 'arm_syscall' arch/arm/kernel/traps.c:734:1: error: no previous prototype for 'baddataabort' arch/arm/kernel/traps.c:774:17: error: no previous prototype for '__div0' arch/arm/kernel/traps.c:97:6: error: no previous prototype for 'dump_backtrace_stm' arch/arm/kernel/unwind.c:40:6: error: no previous prototype for '__aeabi_unwind_cpp_pr0' arch/arm/kernel/unwind.c:45:6: error: no previous prototype for '__aeabi_unwind_cpp_pr1' arch/arm/kernel/unwind.c:50:6: error: no previous prototype for '__aeabi_unwind_cpp_pr2' arch/arm/mm/fault.c:554:1: error: no previous prototype for 'do_DataAbort' arch/arm/mm/fault.c:584:1: error: no previous prototype for 'do_PrefetchAbort' arch/arm/mm/proc-v7-bugs.c:280:6: error: no previous prototype for 'cpu_v7_ca8_ibe' arch/arm/mm/proc-v7-bugs.c:293:6: error: no previous prototype for 'cpu_v7_bugs_init' arch/arm/vdso/vgettimeofday.c:36:6: error: no previous prototype for '__aeabi_unwind_cpp_pr0' arch/arm/vdso/vgettimeofday.c:40:6: error: no previous prototype for '__aeabi_unwind_cpp_pr1' arch/arm/vdso/vgettimeofday.c:44:6: error: no previous prototype for '__aeabi_unwind_cpp_pr2' arch/arm/vfp/vfpmodule.c:323:6: error: no previous prototype for 'VFP_bounce' Add the prototypes anyway, to allow enabling this warning by default in the future. Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* arch/arm/include/asm/vfp.h
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*
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* VFP register definitions.
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* First, the standard VFP set.
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*/
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#ifndef __ASM_VFP_H
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#define __ASM_VFP_H
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#ifndef CONFIG_AS_VFP_VMRS_FPINST
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#define FPSID cr0
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#define FPSCR cr1
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#define MVFR1 cr6
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#define MVFR0 cr7
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#define FPEXC cr8
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#define FPINST cr9
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#define FPINST2 cr10
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#endif
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/* FPSID bits */
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#define FPSID_IMPLEMENTER_BIT (24)
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#define FPSID_IMPLEMENTER_MASK (0xff << FPSID_IMPLEMENTER_BIT)
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#define FPSID_SOFTWARE (1<<23)
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#define FPSID_FORMAT_BIT (21)
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#define FPSID_FORMAT_MASK (0x3 << FPSID_FORMAT_BIT)
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#define FPSID_NODOUBLE (1<<20)
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#define FPSID_ARCH_BIT (16)
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#define FPSID_ARCH_MASK (0xF << FPSID_ARCH_BIT)
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#define FPSID_CPUID_ARCH_MASK (0x7F << FPSID_ARCH_BIT)
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#define FPSID_PART_BIT (8)
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#define FPSID_PART_MASK (0xFF << FPSID_PART_BIT)
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#define FPSID_VARIANT_BIT (4)
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#define FPSID_VARIANT_MASK (0xF << FPSID_VARIANT_BIT)
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#define FPSID_REV_BIT (0)
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#define FPSID_REV_MASK (0xF << FPSID_REV_BIT)
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/* FPEXC bits */
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#define FPEXC_EX (1 << 31)
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#define FPEXC_EN (1 << 30)
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#define FPEXC_DEX (1 << 29)
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#define FPEXC_FP2V (1 << 28)
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#define FPEXC_VV (1 << 27)
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#define FPEXC_TFV (1 << 26)
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#define FPEXC_LENGTH_BIT (8)
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#define FPEXC_LENGTH_MASK (7 << FPEXC_LENGTH_BIT)
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#define FPEXC_IDF (1 << 7)
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#define FPEXC_IXF (1 << 4)
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#define FPEXC_UFF (1 << 3)
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#define FPEXC_OFF (1 << 2)
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#define FPEXC_DZF (1 << 1)
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#define FPEXC_IOF (1 << 0)
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#define FPEXC_TRAP_MASK (FPEXC_IDF|FPEXC_IXF|FPEXC_UFF|FPEXC_OFF|FPEXC_DZF|FPEXC_IOF)
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/* FPSCR bits */
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#define FPSCR_DEFAULT_NAN (1<<25)
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#define FPSCR_FLUSHTOZERO (1<<24)
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#define FPSCR_ROUND_NEAREST (0<<22)
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#define FPSCR_ROUND_PLUSINF (1<<22)
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#define FPSCR_ROUND_MINUSINF (2<<22)
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#define FPSCR_ROUND_TOZERO (3<<22)
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#define FPSCR_RMODE_BIT (22)
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#define FPSCR_RMODE_MASK (3 << FPSCR_RMODE_BIT)
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#define FPSCR_STRIDE_BIT (20)
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#define FPSCR_STRIDE_MASK (3 << FPSCR_STRIDE_BIT)
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#define FPSCR_LENGTH_BIT (16)
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#define FPSCR_LENGTH_MASK (7 << FPSCR_LENGTH_BIT)
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#define FPSCR_IOE (1<<8)
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#define FPSCR_DZE (1<<9)
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#define FPSCR_OFE (1<<10)
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#define FPSCR_UFE (1<<11)
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#define FPSCR_IXE (1<<12)
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#define FPSCR_IDE (1<<15)
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#define FPSCR_IOC (1<<0)
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#define FPSCR_DZC (1<<1)
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#define FPSCR_OFC (1<<2)
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#define FPSCR_UFC (1<<3)
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#define FPSCR_IXC (1<<4)
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#define FPSCR_IDC (1<<7)
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/* MVFR0 bits */
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#define MVFR0_A_SIMD_BIT (0)
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#define MVFR0_A_SIMD_MASK (0xf << MVFR0_A_SIMD_BIT)
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#define MVFR0_SP_BIT (4)
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#define MVFR0_SP_MASK (0xf << MVFR0_SP_BIT)
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#define MVFR0_DP_BIT (8)
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#define MVFR0_DP_MASK (0xf << MVFR0_DP_BIT)
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/* MVFR1 bits */
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#define MVFR1_ASIMDHP_BIT (20)
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#define MVFR1_ASIMDHP_MASK (0xf << MVFR1_ASIMDHP_BIT)
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#define MVFR1_FPHP_BIT (24)
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#define MVFR1_FPHP_MASK (0xf << MVFR1_FPHP_BIT)
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/* Bit patterns for decoding the packaged operation descriptors */
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#define VFPOPDESC_LENGTH_BIT (9)
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#define VFPOPDESC_LENGTH_MASK (0x07 << VFPOPDESC_LENGTH_BIT)
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#define VFPOPDESC_UNUSED_BIT (24)
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#define VFPOPDESC_UNUSED_MASK (0xFF << VFPOPDESC_UNUSED_BIT)
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#define VFPOPDESC_OPDESC_MASK (~(VFPOPDESC_LENGTH_MASK | VFPOPDESC_UNUSED_MASK))
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#ifndef __ASSEMBLY__
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void vfp_disable(void);
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void VFP_bounce(u32 trigger, u32 fpexc, struct pt_regs *regs);
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#endif
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#endif /* __ASM_VFP_H */
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