280 lines
6.7 KiB
C
280 lines
6.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef _RULES_H
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#define _RULES_H
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/* Useful helpers to tell whether the code is executing in bootblock,
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* romstage, ramstage or SMM.
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*/
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#if defined(__DECOMPRESSOR__)
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#define ENV_DECOMPRESSOR 1
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#define ENV_BOOTBLOCK 0
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#define ENV_ROMSTAGE 0
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#define ENV_RAMSTAGE 0
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#define ENV_SMM 0
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#define ENV_SEPARATE_VERSTAGE 0
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#define ENV_RMODULE 0
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#define ENV_POSTCAR 0
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#define ENV_LIBAGESA 0
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#define ENV_STRING "decompressor"
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#elif defined(__BOOTBLOCK__)
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#define ENV_DECOMPRESSOR 0
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#define ENV_BOOTBLOCK 1
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#define ENV_ROMSTAGE 0
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#define ENV_RAMSTAGE 0
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#define ENV_SMM 0
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#define ENV_SEPARATE_VERSTAGE 0
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#define ENV_RMODULE 0
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#define ENV_POSTCAR 0
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#define ENV_LIBAGESA 0
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#define ENV_STRING "bootblock"
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#elif defined(__ROMSTAGE__)
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#define ENV_DECOMPRESSOR 0
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#define ENV_BOOTBLOCK 0
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#define ENV_ROMSTAGE 1
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#define ENV_RAMSTAGE 0
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#define ENV_SMM 0
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#define ENV_SEPARATE_VERSTAGE 0
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#define ENV_RMODULE 0
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#define ENV_POSTCAR 0
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#define ENV_LIBAGESA 0
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#define ENV_STRING "romstage"
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#elif defined(__SMM__)
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#define ENV_DECOMPRESSOR 0
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#define ENV_BOOTBLOCK 0
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#define ENV_ROMSTAGE 0
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#define ENV_RAMSTAGE 0
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#define ENV_SMM 1
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#define ENV_SEPARATE_VERSTAGE 0
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#define ENV_RMODULE 0
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#define ENV_POSTCAR 0
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#define ENV_LIBAGESA 0
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#define ENV_STRING "smm"
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/*
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* NOTE: "verstage" code may either run as a separate stage or linked into the
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* bootblock/romstage, depending on the setting of CONFIG_SEPARATE_VERSTAGE. The
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* ENV_SEPARATE_VERSTAGE macro will only return true for "verstage" code when
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* CONFIG_SEPARATE_VERSTAGE=y, otherwise that code will have ENV_BOOTBLOCK or
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* ENV_ROMSTAGE set (depending on the CONFIG_VBOOT_STARTS_IN_... options).
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*/
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#elif defined(__VERSTAGE__)
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#define ENV_DECOMPRESSOR 0
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#define ENV_BOOTBLOCK 0
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#define ENV_ROMSTAGE 0
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#define ENV_RAMSTAGE 0
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#define ENV_SMM 0
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#define ENV_SEPARATE_VERSTAGE 1
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#define ENV_RMODULE 0
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#define ENV_POSTCAR 0
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#define ENV_LIBAGESA 0
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#define ENV_STRING "verstage"
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#elif defined(__RAMSTAGE__)
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#define ENV_DECOMPRESSOR 0
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#define ENV_BOOTBLOCK 0
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#define ENV_ROMSTAGE 0
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#define ENV_RAMSTAGE 1
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#define ENV_SMM 0
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#define ENV_SEPARATE_VERSTAGE 0
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#define ENV_RMODULE 0
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#define ENV_POSTCAR 0
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#define ENV_LIBAGESA 0
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#define ENV_STRING "ramstage"
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#elif defined(__RMODULE__)
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#define ENV_DECOMPRESSOR 0
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#define ENV_BOOTBLOCK 0
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#define ENV_ROMSTAGE 0
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#define ENV_RAMSTAGE 0
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#define ENV_SMM 0
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#define ENV_SEPARATE_VERSTAGE 0
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#define ENV_RMODULE 1
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#define ENV_POSTCAR 0
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#define ENV_LIBAGESA 0
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#define ENV_STRING "rmodule"
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#elif defined(__POSTCAR__)
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#define ENV_DECOMPRESSOR 0
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#define ENV_BOOTBLOCK 0
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#define ENV_ROMSTAGE 0
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#define ENV_RAMSTAGE 0
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#define ENV_SMM 0
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#define ENV_SEPARATE_VERSTAGE 0
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#define ENV_RMODULE 0
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#define ENV_POSTCAR 1
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#define ENV_LIBAGESA 0
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#define ENV_STRING "postcar"
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#elif defined(__LIBAGESA__)
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#define ENV_DECOMPRESSOR 0
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#define ENV_BOOTBLOCK 0
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#define ENV_ROMSTAGE 0
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#define ENV_RAMSTAGE 0
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#define ENV_SMM 0
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#define ENV_SEPARATE_VERSTAGE 0
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#define ENV_RMODULE 0
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#define ENV_POSTCAR 0
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#define ENV_LIBAGESA 1
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#define ENV_STRING "libagesa"
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#else
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/*
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* Default case of nothing set for random blob generation using
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* create_class_compiler that isn't bound to a stage.
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*/
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#define ENV_DECOMPRESSOR 0
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#define ENV_BOOTBLOCK 0
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#define ENV_ROMSTAGE 0
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#define ENV_RAMSTAGE 0
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#define ENV_SMM 0
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#define ENV_SEPARATE_VERSTAGE 0
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#define ENV_RMODULE 0
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#define ENV_POSTCAR 0
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#define ENV_LIBAGESA 0
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#define ENV_STRING "UNKNOWN"
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#endif
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/* Define helpers about the current architecture, based on toolchain.inc. */
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#if defined(__ARCH_arm__)
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#define ENV_ARM 1
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#define ENV_ARM64 0
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#if __COREBOOT_ARM_ARCH__ == 4
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#define ENV_ARMV4 1
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#define ENV_ARMV7 0
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#elif __COREBOOT_ARM_ARCH__ == 7
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#define ENV_ARMV4 0
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#define ENV_ARMV7 1
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#if defined(__COREBOOT_ARM_V7_A__)
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#define ENV_ARMV7_A 1
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#define ENV_ARMV7_M 0
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#define ENV_ARMV7_R 0
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#elif defined(__COREBOOT_ARM_V7_M__)
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#define ENV_ARMV7_A 0
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#define ENV_ARMV7_M 1
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#define ENV_ARMV7_R 0
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#elif defined(__COREBOOT_ARM_V7_R__)
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#define ENV_ARMV7_A 0
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#define ENV_ARMV7_M 0
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#define ENV_ARMV7_R 1
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#endif
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#else
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#define ENV_ARMV4 0
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#define ENV_ARMV7 0
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#endif
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#define ENV_ARMV8 0
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#define ENV_RISCV 0
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#define ENV_X86 0
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#define ENV_X86_32 0
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#define ENV_X86_64 0
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#elif defined(__ARCH_arm64__)
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#define ENV_ARM 0
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#define ENV_ARM64 1
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#define ENV_ARMV4 0
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#define ENV_ARMV7 0
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#if __COREBOOT_ARM_ARCH__ == 8
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#define ENV_ARMV8 1
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#else
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#define ENV_ARMV8 0
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#endif
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#define ENV_RISCV 0
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#define ENV_X86 0
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#define ENV_X86_32 0
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#define ENV_X86_64 0
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#elif defined(__ARCH_riscv__)
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#define ENV_ARM 0
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#define ENV_ARM64 0
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#define ENV_ARMV4 0
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#define ENV_ARMV7 0
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#define ENV_ARMV8 0
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#define ENV_RISCV 1
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#define ENV_X86 0
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#define ENV_X86_32 0
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#define ENV_X86_64 0
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#elif defined(__ARCH_x86_32__)
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#define ENV_ARM 0
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#define ENV_ARM64 0
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#define ENV_ARMV4 0
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#define ENV_ARMV7 0
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#define ENV_ARMV8 0
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#define ENV_RISCV 0
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#define ENV_X86 1
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#define ENV_X86_32 1
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#define ENV_X86_64 0
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#elif defined(__ARCH_x86_64__)
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#define ENV_ARM 0
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#define ENV_ARM64 0
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#define ENV_ARMV4 0
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#define ENV_ARMV7 0
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#define ENV_ARMV8 0
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#define ENV_RISCV 0
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#define ENV_X86 1
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#define ENV_X86_32 0
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#define ENV_X86_64 1
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#else
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#define ENV_ARM 0
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#define ENV_ARM64 0
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#define ENV_ARMV4 0
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#define ENV_ARMV7 0
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#define ENV_ARMV8 0
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#define ENV_RISCV 0
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#define ENV_X86 0
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#define ENV_X86_32 0
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#define ENV_X86_64 0
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#endif
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#if CONFIG(RAMPAYLOAD)
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/* ENV_PAYLOAD_LOADER is set to ENV_POSTCAR when CONFIG_RAMPAYLOAD is enabled */
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#define ENV_PAYLOAD_LOADER ENV_POSTCAR
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#else
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/* ENV_PAYLOAD_LOADER is set when you are in a stage that loads the payload.
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* For now, that is the ramstage. */
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#define ENV_PAYLOAD_LOADER ENV_RAMSTAGE
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#endif
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#define ENV_ROMSTAGE_OR_BEFORE \
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(ENV_DECOMPRESSOR || ENV_BOOTBLOCK || ENV_ROMSTAGE || \
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(ENV_SEPARATE_VERSTAGE && CONFIG(VBOOT_STARTS_IN_BOOTBLOCK)))
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#if CONFIG(ARCH_X86)
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/* Indicates memory layout is determined with arch/x86/car.ld. */
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#define ENV_CACHE_AS_RAM (ENV_ROMSTAGE_OR_BEFORE && !CONFIG(RESET_VECTOR_IN_RAM))
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/* No .data sections with execute-in-place from ROM. */
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#define ENV_STAGE_HAS_DATA_SECTION !ENV_CACHE_AS_RAM
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#else
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/* Both .data and .bss, sometimes SRAM not DRAM. */
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#define ENV_STAGE_HAS_DATA_SECTION 1
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#define ENV_CACHE_AS_RAM 0
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#endif
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/* Currently rmodules, ramstage and smm have heap. */
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#define ENV_STAGE_HAS_HEAP_SECTION (ENV_RMODULE || ENV_RAMSTAGE || ENV_SMM)
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/**
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* For pre-DRAM stages and post-CAR always build with simple device model, ie.
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* PCI, PNP and CPU functions operate without use of devicetree. The reason
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* post-CAR utilizes __SIMPLE_DEVICE__ is for simplicity. Currently there's
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* no known requirement that devicetree would be needed during that stage.
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*
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* For ramstage individual source file may define __SIMPLE_DEVICE__
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* before including any header files to force that particular source
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* be built with simple device model.
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*/
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#if !ENV_RAMSTAGE
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#define __SIMPLE_DEVICE__
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#endif
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#endif /* _RULES_H */
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