diff options
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/arch-fsl-layerscape/config.h | 13 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-fsl-layerscape/cpu.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-fsl-layerscape/fsl_serdes.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-fsl-layerscape/mp.h | 4 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-ls102xa/config.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-rockchip/bootrom.h | 9 | ||||
| -rw-r--r-- | arch/arm/include/asm/armv8/sec_firmware.h | 7 | ||||
| -rw-r--r-- | arch/arm/include/asm/config.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/fsl_secure_boot.h | 53 | ||||
| -rw-r--r-- | arch/arm/include/asm/opcodes-sec.h | 17 | ||||
| -rw-r--r-- | arch/arm/include/asm/opcodes-virt.h | 27 | ||||
| -rw-r--r-- | arch/arm/include/asm/opcodes.h | 229 |
12 files changed, 337 insertions, 30 deletions
diff --git a/arch/arm/include/asm/arch-fsl-layerscape/config.h b/arch/arm/include/asm/arch-fsl-layerscape/config.h index b5b08aa..93e6597 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/config.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/config.h @@ -18,7 +18,7 @@ */ #define CONFIG_SYS_MEM_RESERVE_SECURE (2048 * 1024) /* 2MB */ -#ifdef CONFIG_LS2080A +#ifdef CONFIG_ARCH_LS2080A #define CONFIG_SYS_FSL_CLUSTER_CLOCKS { 1, 1, 4, 4 } #define SRDS_MAX_LANES 8 #define CONFIG_SYS_PAGE_SIZE 0x10000 @@ -132,7 +132,7 @@ #define CONFIG_SYS_FSL_PEX_LUT_BE /* SoC related */ -#ifdef CONFIG_LS1043A +#ifdef CONFIG_ARCH_LS1043A #define CONFIG_SYS_FMAN_V3 #define CONFIG_SYS_NUM_FMAN 1 #define CONFIG_SYS_NUM_FM1_DTSEC 7 @@ -185,7 +185,12 @@ #elif defined(CONFIG_ARCH_LS1012A) #define GICD_BASE 0x01401000 #define GICC_BASE 0x01402000 - +#define CONFIG_SYS_FSL_SFP_VER_3_2 +#define CONFIG_SYS_FSL_SEC_MON_BE +#define CONFIG_SYS_FSL_SFP_BE +#define CONFIG_SYS_FSL_SRK_LE +#define CONFIG_KEY_REVOCATION +#define CONFIG_SYS_FSL_MAX_NUM_OF_SEC 1 #define CONFIG_SYS_DDR_BLOCK1_SIZE ((phys_size_t)2 << 30) #define CONFIG_MAX_MEM_MAPPED CONFIG_SYS_DDR_BLOCK1_SIZE @@ -199,7 +204,7 @@ #define CONFIG_SYS_FSL_IFC_BE #define CONFIG_SYS_FSL_SFP_VER_3_2 -#define CONFIG_SYS_FSL_SNVS_LE +#define CONFIG_SYS_FSL_SEC_MON_BE #define CONFIG_SYS_FSL_SFP_BE #define CONFIG_SYS_FSL_SRK_LE #define CONFIG_KEY_REVOCATION diff --git a/arch/arm/include/asm/arch-fsl-layerscape/cpu.h b/arch/arm/include/asm/arch-fsl-layerscape/cpu.h index bcf3e38..95c3e2f 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/cpu.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/cpu.h @@ -249,7 +249,7 @@ static struct mm_region final_map[] = { PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | PTE_BLOCK_NON_SHARE | PTE_BLOCK_PXN | PTE_BLOCK_UXN }, -#ifdef CONFIG_LS2080A +#ifdef CONFIG_ARCH_LS2080A { CONFIG_SYS_PCIE4_PHYS_ADDR, CONFIG_SYS_PCIE4_PHYS_ADDR, CONFIG_SYS_PCIE4_PHYS_SIZE, PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) | diff --git a/arch/arm/include/asm/arch-fsl-layerscape/fsl_serdes.h b/arch/arm/include/asm/arch-fsl-layerscape/fsl_serdes.h index 70181c5..a8f9a50 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/fsl_serdes.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/fsl_serdes.h @@ -9,7 +9,7 @@ #include <config.h> -#ifdef CONFIG_LS2080A +#ifdef CONFIG_ARCH_LS2080A enum srds_prtcl { /* * Nobody will check whether the device 'NONE' has been configured, diff --git a/arch/arm/include/asm/arch-fsl-layerscape/mp.h b/arch/arm/include/asm/arch-fsl-layerscape/mp.h index d0832b5..fd3f851 100644 --- a/arch/arm/include/asm/arch-fsl-layerscape/mp.h +++ b/arch/arm/include/asm/arch-fsl-layerscape/mp.h @@ -31,7 +31,11 @@ extern u64 __spin_table[]; extern u64 __real_cntfrq; extern u64 *secondary_boot_code; extern size_t __secondary_boot_code_size; +#ifdef CONFIG_MP int fsl_layerscape_wake_seconday_cores(void); +#else +static inline int fsl_layerscape_wake_seconday_cores(void) { return 0; } +#endif void *get_spin_tbl_addr(void); phys_addr_t determine_mp_bootpg(void); void secondary_boot_func(void); diff --git a/arch/arm/include/asm/arch-ls102xa/config.h b/arch/arm/include/asm/arch-ls102xa/config.h index 2f7233f..5c4da0f 100644 --- a/arch/arm/include/asm/arch-ls102xa/config.h +++ b/arch/arm/include/asm/arch-ls102xa/config.h @@ -108,7 +108,7 @@ #define DCU_LAYER_MAX_NUM 16 -#ifdef CONFIG_LS102XA +#ifdef CONFIG_ARCH_LS1021A #define CONFIG_USB_MAX_CONTROLLER_COUNT 1 #define CONFIG_SYS_FSL_MAX_NUM_OF_SEC 1 #else diff --git a/arch/arm/include/asm/arch-rockchip/bootrom.h b/arch/arm/include/asm/arch-rockchip/bootrom.h index 79fb1a0..92eb878 100644 --- a/arch/arm/include/asm/arch-rockchip/bootrom.h +++ b/arch/arm/include/asm/arch-rockchip/bootrom.h @@ -13,10 +13,15 @@ */ extern u32 SAVE_SP_ADDR; -/* +/** * Hand control back to the bootrom to load another * boot stage. */ -extern void back_to_bootrom(void); +void back_to_bootrom(void); + +/** + * Assembler component for the above (do not call this directly) + */ +void _back_to_bootrom_s(void); #endif diff --git a/arch/arm/include/asm/armv8/sec_firmware.h b/arch/arm/include/asm/armv8/sec_firmware.h index bcdb1b0..bc1d97d 100644 --- a/arch/arm/include/asm/armv8/sec_firmware.h +++ b/arch/arm/include/asm/armv8/sec_firmware.h @@ -7,12 +7,19 @@ #ifndef __SEC_FIRMWARE_H_ #define __SEC_FIRMWARE_H_ +#define PSCI_INVALID_VER 0xffffffff + int sec_firmware_init(const void *, u32 *, u32 *); int _sec_firmware_entry(const void *, u32 *, u32 *); bool sec_firmware_is_valid(const void *); #ifdef CONFIG_SEC_FIRMWARE_ARMV8_PSCI unsigned int sec_firmware_support_psci_version(void); unsigned int _sec_firmware_support_psci_version(void); +#else +static inline unsigned int sec_firmware_support_psci_version(void) +{ + return PSCI_INVALID_VER; +} #endif #endif /* __SEC_FIRMWARE_H_ */ diff --git a/arch/arm/include/asm/config.h b/arch/arm/include/asm/config.h index 1ad221a..5674d37 100644 --- a/arch/arm/include/asm/config.h +++ b/arch/arm/include/asm/config.h @@ -14,7 +14,7 @@ #define CONFIG_STATIC_RELA #endif -#if defined(CONFIG_LS102XA) || \ +#if defined(CONFIG_ARCH_LS1021A) || \ defined(CONFIG_CPU_PXA27X) || \ defined(CONFIG_CPU_MONAHANS) || \ defined(CONFIG_CPU_PXA25X) || \ diff --git a/arch/arm/include/asm/fsl_secure_boot.h b/arch/arm/include/asm/fsl_secure_boot.h index d98a1e8..f5ca5d3 100644 --- a/arch/arm/include/asm/fsl_secure_boot.h +++ b/arch/arm/include/asm/fsl_secure_boot.h @@ -27,10 +27,11 @@ #define CONFIG_SPL_UBOOT_KEY_HASH NULL #endif /* ifdef CONFIG_SPL_BUILD */ +#define CONFIG_KEY_REVOCATION + #ifndef CONFIG_SPL_BUILD #define CONFIG_CMD_BLOB #define CONFIG_CMD_HASH -#define CONFIG_KEY_REVOCATION #ifndef CONFIG_SYS_RAMBOOT /* The key used for verification of next level images * is picked up from an Extension Table which has @@ -46,14 +47,15 @@ #endif -#if defined(CONFIG_LS1043A) || defined(CONFIG_LS2080A) -/* For LS1043 (ARMv8), ESBC image Address in Header is 64 bit - * Similiarly for LS2080 +#if defined(CONFIG_FSL_LAYERSCAPE) +/* + * For fsl layerscape based platforms, ESBC image Address in Header + * is 64 bit. */ #define CONFIG_ESBC_ADDR_64BIT #endif -#ifdef CONFIG_LS2080A +#ifdef CONFIG_ARCH_LS2080A #define CONFIG_EXTRA_ENV \ "setenv fdt_high 0xa0000000;" \ "setenv initrd_high 0xcfffffff;" \ @@ -68,7 +70,7 @@ /* Copying Bootscript and Header to DDR from NOR for LS2 and for rest, from * Non-XIP Memory (Nand/SD)*/ #if defined(CONFIG_SYS_RAMBOOT) || defined(CONFIG_FSL_LSCH3) || \ - defined(CONFIG_SD_BOOT) + defined(CONFIG_SD_BOOT) || defined(CONFIG_NAND_BOOT) #define CONFIG_BOOTSCRIPT_COPY_RAM #endif /* The address needs to be modified according to NOR, NAND, SD and @@ -86,16 +88,37 @@ /* For SD boot address and size are assigned in terms of sector * offset and no. of sectors respectively. */ -#define CONFIG_BS_HDR_ADDR_DEVICE 0x00000900 +#if defined(CONFIG_ARCH_LS1043A) || defined(CONFIG_ARCH_LS1046A) +#define CONFIG_BS_HDR_ADDR_DEVICE 0x00000920 +#else +#define CONFIG_BS_HDR_ADDR_DEVICE 0x00000900 +#endif #define CONFIG_BS_ADDR_DEVICE 0x00000940 #define CONFIG_BS_HDR_SIZE 0x00000010 #define CONFIG_BS_SIZE 0x00000008 +#elif defined(CONFIG_NAND_BOOT) +#define CONFIG_BS_HDR_ADDR_DEVICE 0x00800000 +#define CONFIG_BS_ADDR_DEVICE 0x00802000 +#define CONFIG_BS_HDR_SIZE 0x00002000 +#define CONFIG_BS_SIZE 0x00001000 +#elif defined(CONFIG_QSPI_BOOT) +#ifdef CONFIG_ARCH_LS1046A +#define CONFIG_BS_HDR_ADDR_DEVICE 0x40780000 +#define CONFIG_BS_ADDR_DEVICE 0x40800000 +#elif defined(CONFIG_ARCH_LS1012A) +#define CONFIG_BS_HDR_ADDR_DEVICE 0x400c0000 +#define CONFIG_BS_ADDR_DEVICE 0x40060000 #else +#error "Platform not supported" +#endif +#define CONFIG_BS_HDR_SIZE 0x00002000 +#define CONFIG_BS_SIZE 0x00001000 +#else /* Default NOR Boot */ #define CONFIG_BS_HDR_ADDR_DEVICE 0x600a0000 #define CONFIG_BS_ADDR_DEVICE 0x60060000 #define CONFIG_BS_HDR_SIZE 0x00002000 #define CONFIG_BS_SIZE 0x00001000 -#endif /* #ifdef CONFIG_SD_BOOT */ +#endif #define CONFIG_BS_HDR_ADDR_RAM 0x81000000 #define CONFIG_BS_ADDR_RAM 0x81020000 #endif @@ -109,23 +132,13 @@ #endif #ifdef CONFIG_FSL_LS_PPA -#ifdef CONFIG_SYS_LS_PPA_FW_IN_XIP -#ifdef CONFIG_LS1043A -#define CONFIG_SYS_LS_PPA_ESBC_ADDR 0x600c0000 -#elif defined(CONFIG_FSL_LSCH3) -#define CONFIG_SYS_LS_PPA_ESBC_ADDR 0x580c40000 -#endif -#else -#error "No CONFIG_SYS_LS_PPA_FW_IN_xxx defined" -#endif /* ifdef CONFIG_SYS_LS_PPA_FW_IN_XIP */ - /* Define the key hash here if SRK used for signing PPA image is * different from SRK hash put in SFP used for U-Boot. * Example - * #define CONFIG_PPA_KEY_HASH \ + * #define PPA_KEY_HASH \ * "41066b564c6ffcef40ccbc1e0a5d0d519604000c785d97bbefd25e4d288d1c8b" */ -#define CONFIG_PPA_KEY_HASH NULL +#define PPA_KEY_HASH NULL #endif /* ifdef CONFIG_FSL_LS_PPA */ #include <config_fsl_chain_trust.h> diff --git a/arch/arm/include/asm/opcodes-sec.h b/arch/arm/include/asm/opcodes-sec.h new file mode 100644 index 0000000..16dee8f --- /dev/null +++ b/arch/arm/include/asm/opcodes-sec.h @@ -0,0 +1,17 @@ +/* + * Copyright (C) 2012 ARM Limited + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef __ASM_ARM_OPCODES_SEC_H +#define __ASM_ARM_OPCODES_SEC_H + +#include <asm/opcodes.h> + +#define __SMC(imm4) __inst_arm_thumb32( \ + 0xE1600070 | (((imm4) & 0xF) << 0), \ + 0xF7F08000 | (((imm4) & 0xF) << 16) \ +) + +#endif /* __ASM_ARM_OPCODES_SEC_H */ diff --git a/arch/arm/include/asm/opcodes-virt.h b/arch/arm/include/asm/opcodes-virt.h new file mode 100644 index 0000000..9272997 --- /dev/null +++ b/arch/arm/include/asm/opcodes-virt.h @@ -0,0 +1,27 @@ +/* + * opcodes-virt.h: Opcode definitions for the ARM virtualization extensions + * Copyright (C) 2012 Linaro Limited + * + * SPDX-License-Identifier: GPL-2.0+ + */ +#ifndef __ASM_ARM_OPCODES_VIRT_H +#define __ASM_ARM_OPCODES_VIRT_H + +#include <asm/opcodes.h> + +#define __HVC(imm16) __inst_arm_thumb32( \ + 0xE1400070 | (((imm16) & 0xFFF0) << 4) | ((imm16) & 0x000F), \ + 0xF7E08000 | (((imm16) & 0xF000) << 4) | ((imm16) & 0x0FFF) \ +) + +#define __ERET __inst_arm_thumb32( \ + 0xE160006E, \ + 0xF3DE8F00 \ +) + +#define __MSR_ELR_HYP(regnum) __inst_arm_thumb32( \ + 0xE12EF300 | regnum, \ + 0xF3808E30 | (regnum << 16) \ +) + +#endif /* ! __ASM_ARM_OPCODES_VIRT_H */ diff --git a/arch/arm/include/asm/opcodes.h b/arch/arm/include/asm/opcodes.h new file mode 100644 index 0000000..199f0ba --- /dev/null +++ b/arch/arm/include/asm/opcodes.h @@ -0,0 +1,229 @@ +/* + * arch/arm/include/asm/opcodes.h + * + * SPDX-License-Identifier: GPL-2.0 + */ + +#ifndef __ASM_ARM_OPCODES_H +#define __ASM_ARM_OPCODES_H + +#ifndef __ASSEMBLY__ +#include <linux/linkage.h> +extern asmlinkage unsigned int arm_check_condition(u32 opcode, u32 psr); +#endif + +#define ARM_OPCODE_CONDTEST_FAIL 0 +#define ARM_OPCODE_CONDTEST_PASS 1 +#define ARM_OPCODE_CONDTEST_UNCOND 2 + + +/* + * Assembler opcode byteswap helpers. + * These are only intended for use by this header: don't use them directly, + * because they will be suboptimal in most cases. + */ +#define ___asm_opcode_swab32(x) ( \ + (((x) << 24) & 0xFF000000) \ + | (((x) << 8) & 0x00FF0000) \ + | (((x) >> 8) & 0x0000FF00) \ + | (((x) >> 24) & 0x000000FF) \ +) +#define ___asm_opcode_swab16(x) ( \ + (((x) << 8) & 0xFF00) \ + | (((x) >> 8) & 0x00FF) \ +) +#define ___asm_opcode_swahb32(x) ( \ + (((x) << 8) & 0xFF00FF00) \ + | (((x) >> 8) & 0x00FF00FF) \ +) +#define ___asm_opcode_swahw32(x) ( \ + (((x) << 16) & 0xFFFF0000) \ + | (((x) >> 16) & 0x0000FFFF) \ +) +#define ___asm_opcode_identity32(x) ((x) & 0xFFFFFFFF) +#define ___asm_opcode_identity16(x) ((x) & 0xFFFF) + + +/* + * Opcode byteswap helpers + * + * These macros help with converting instructions between a canonical integer + * format and in-memory representation, in an endianness-agnostic manner. + * + * __mem_to_opcode_*() convert from in-memory representation to canonical form. + * __opcode_to_mem_*() convert from canonical form to in-memory representation. + * + * + * Canonical instruction representation: + * + * ARM: 0xKKLLMMNN + * Thumb 16-bit: 0x0000KKLL, where KK < 0xE8 + * Thumb 32-bit: 0xKKLLMMNN, where KK >= 0xE8 + * + * There is no way to distinguish an ARM instruction in canonical representation + * from a Thumb instruction (just as these cannot be distinguished in memory). + * Where this distinction is important, it needs to be tracked separately. + * + * Note that values in the range 0x0000E800..0xE7FFFFFF intentionally do not + * represent any valid Thumb-2 instruction. For this range, + * __opcode_is_thumb32() and __opcode_is_thumb16() will both be false. + * + * The ___asm variants are intended only for use by this header, in situations + * involving inline assembler. For .S files, the normal __opcode_*() macros + * should do the right thing. + */ +#ifdef __ASSEMBLY__ + +#define ___opcode_swab32(x) ___asm_opcode_swab32(x) +#define ___opcode_swab16(x) ___asm_opcode_swab16(x) +#define ___opcode_swahb32(x) ___asm_opcode_swahb32(x) +#define ___opcode_swahw32(x) ___asm_opcode_swahw32(x) +#define ___opcode_identity32(x) ___asm_opcode_identity32(x) +#define ___opcode_identity16(x) ___asm_opcode_identity16(x) + +#else /* ! __ASSEMBLY__ */ + +#include <linux/types.h> +#include <linux/swab.h> + +#define ___opcode_swab32(x) swab32(x) +#define ___opcode_swab16(x) swab16(x) +#define ___opcode_swahb32(x) swahb32(x) +#define ___opcode_swahw32(x) swahw32(x) +#define ___opcode_identity32(x) ((u32)(x)) +#define ___opcode_identity16(x) ((u16)(x)) + +#endif /* ! __ASSEMBLY__ */ + + +#ifdef CONFIG_CPU_ENDIAN_BE8 + +#define __opcode_to_mem_arm(x) ___opcode_swab32(x) +#define __opcode_to_mem_thumb16(x) ___opcode_swab16(x) +#define __opcode_to_mem_thumb32(x) ___opcode_swahb32(x) +#define ___asm_opcode_to_mem_arm(x) ___asm_opcode_swab32(x) +#define ___asm_opcode_to_mem_thumb16(x) ___asm_opcode_swab16(x) +#define ___asm_opcode_to_mem_thumb32(x) ___asm_opcode_swahb32(x) + +#else /* ! CONFIG_CPU_ENDIAN_BE8 */ + +#define __opcode_to_mem_arm(x) ___opcode_identity32(x) +#define __opcode_to_mem_thumb16(x) ___opcode_identity16(x) +#define ___asm_opcode_to_mem_arm(x) ___asm_opcode_identity32(x) +#define ___asm_opcode_to_mem_thumb16(x) ___asm_opcode_identity16(x) +#ifndef CONFIG_CPU_ENDIAN_BE32 +/* + * On BE32 systems, using 32-bit accesses to store Thumb instructions will not + * work in all cases, due to alignment constraints. For now, a correct + * version is not provided for BE32. + */ +#define __opcode_to_mem_thumb32(x) ___opcode_swahw32(x) +#define ___asm_opcode_to_mem_thumb32(x) ___asm_opcode_swahw32(x) +#endif + +#endif /* ! CONFIG_CPU_ENDIAN_BE8 */ + +#define __mem_to_opcode_arm(x) __opcode_to_mem_arm(x) +#define __mem_to_opcode_thumb16(x) __opcode_to_mem_thumb16(x) +#ifndef CONFIG_CPU_ENDIAN_BE32 +#define __mem_to_opcode_thumb32(x) __opcode_to_mem_thumb32(x) +#endif + +/* Operations specific to Thumb opcodes */ + +/* Instruction size checks: */ +#define __opcode_is_thumb32(x) ( \ + ((x) & 0xF8000000) == 0xE8000000 \ + || ((x) & 0xF0000000) == 0xF0000000 \ +) +#define __opcode_is_thumb16(x) ( \ + ((x) & 0xFFFF0000) == 0 \ + && !(((x) & 0xF800) == 0xE800 || ((x) & 0xF000) == 0xF000) \ +) + +/* Operations to construct or split 32-bit Thumb instructions: */ +#define __opcode_thumb32_first(x) (___opcode_identity16((x) >> 16)) +#define __opcode_thumb32_second(x) (___opcode_identity16(x)) +#define __opcode_thumb32_compose(first, second) ( \ + (___opcode_identity32(___opcode_identity16(first)) << 16) \ + | ___opcode_identity32(___opcode_identity16(second)) \ +) +#define ___asm_opcode_thumb32_first(x) (___asm_opcode_identity16((x) >> 16)) +#define ___asm_opcode_thumb32_second(x) (___asm_opcode_identity16(x)) +#define ___asm_opcode_thumb32_compose(first, second) ( \ + (___asm_opcode_identity32(___asm_opcode_identity16(first)) << 16) \ + | ___asm_opcode_identity32(___asm_opcode_identity16(second)) \ +) + +/* + * Opcode injection helpers + * + * In rare cases it is necessary to assemble an opcode which the + * assembler does not support directly, or which would normally be + * rejected because of the CFLAGS or AFLAGS used to build the affected + * file. + * + * Before using these macros, consider carefully whether it is feasible + * instead to change the build flags for your file, or whether it really + * makes sense to support old assembler versions when building that + * particular kernel feature. + * + * The macros defined here should only be used where there is no viable + * alternative. + * + * + * __inst_arm(x): emit the specified ARM opcode + * __inst_thumb16(x): emit the specified 16-bit Thumb opcode + * __inst_thumb32(x): emit the specified 32-bit Thumb opcode + * + * __inst_arm_thumb16(arm, thumb): emit either the specified arm or + * 16-bit Thumb opcode, depending on whether an ARM or Thumb-2 + * kernel is being built + * + * __inst_arm_thumb32(arm, thumb): emit either the specified arm or + * 32-bit Thumb opcode, depending on whether an ARM or Thumb-2 + * kernel is being built + * + * + * Note that using these macros directly is poor practice. Instead, you + * should use them to define human-readable wrapper macros to encode the + * instructions that you care about. In code which might run on ARMv7 or + * above, you can usually use the __inst_arm_thumb{16,32} macros to + * specify the ARM and Thumb alternatives at the same time. This ensures + * that the correct opcode gets emitted depending on the instruction set + * used for the kernel build. + * + * Look at opcodes-virt.h for an example of how to use these macros. + */ +#include <linux/stringify.h> + +#define __inst_arm(x) ___inst_arm(___asm_opcode_to_mem_arm(x)) +#define __inst_thumb32(x) ___inst_thumb32( \ + ___asm_opcode_to_mem_thumb16(___asm_opcode_thumb32_first(x)), \ + ___asm_opcode_to_mem_thumb16(___asm_opcode_thumb32_second(x)) \ +) +#define __inst_thumb16(x) ___inst_thumb16(___asm_opcode_to_mem_thumb16(x)) + +#ifdef CONFIG_THUMB2_KERNEL +#define __inst_arm_thumb16(arm_opcode, thumb_opcode) \ + __inst_thumb16(thumb_opcode) +#define __inst_arm_thumb32(arm_opcode, thumb_opcode) \ + __inst_thumb32(thumb_opcode) +#else +#define __inst_arm_thumb16(arm_opcode, thumb_opcode) __inst_arm(arm_opcode) +#define __inst_arm_thumb32(arm_opcode, thumb_opcode) __inst_arm(arm_opcode) +#endif + +/* Helpers for the helpers. Don't use these directly. */ +#ifdef __ASSEMBLY__ +#define ___inst_arm(x) .long x +#define ___inst_thumb16(x) .short x +#define ___inst_thumb32(first, second) .short first, second +#else +#define ___inst_arm(x) ".long " __stringify(x) "\n\t" +#define ___inst_thumb16(x) ".short " __stringify(x) "\n\t" +#define ___inst_thumb32(first, second) \ + ".short " __stringify(first) ", " __stringify(second) "\n\t" +#endif + +#endif /* __ASM_ARM_OPCODES_H */ |