b9d3dc4553
The softfloat (i.e. TCG) specific handling for the FPCR and FPSR is abstracted behind five functions: arm_set_default_fp_behaviours arm_set_ah_fp_behaviours vfp_get_fpsr_from_host vfp_clear_float_status_exc_flags vfp_set_fpsr_to_host Currently we rely on the first two calling softfloat functions that work even in a KVM-only compile because they're defined as inline in the softfloat header file, and we provide stub versions of the last three in arm/vfp_helper.c if CONFIG_TCG isn't defined. Move the softfloat-specific versions of these functions to tcg/vfp_helper.c, and provide the non-TCG stub versions in tcg-stubs.c. This lets us drop the softfloat header include and the last set of CONFIG_TCG ifdefs from arm/vfp_helper.c. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20250221190957.811948-4-peter.maydell@linaro.org
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
/*
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* QEMU ARM stubs for some TCG helper functions
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*
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* Copyright 2021 SUSE LLC
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "cpu.h"
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#include "internals.h"
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void write_v7m_exception(CPUARMState *env, uint32_t new_exc)
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{
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g_assert_not_reached();
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}
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void raise_exception_ra(CPUARMState *env, uint32_t excp, uint32_t syndrome,
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uint32_t target_el, uintptr_t ra)
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{
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g_assert_not_reached();
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}
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/* Temporarily while cpu_get_tb_cpu_state() is still in common code */
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void assert_hflags_rebuild_correctly(CPUARMState *env)
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{
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}
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/* TLBI insns are only used by TCG, so we don't need to do anything for KVM */
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void define_tlb_insn_regs(ARMCPU *cpu)
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{
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}
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/* With KVM, we never use float_status, so these can be no-ops */
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void arm_set_default_fp_behaviours(float_status *s)
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{
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}
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void arm_set_ah_fp_behaviours(float_status *s)
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{
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}
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uint32_t vfp_get_fpsr_from_host(CPUARMState *env)
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{
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return 0;
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}
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void vfp_clear_float_status_exc_flags(CPUARMState *env)
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{
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}
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void vfp_set_fpcr_to_host(CPUARMState *env, uint32_t val, uint32_t mask)
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{
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}
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