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