diff options
Diffstat (limited to 'arch/arm/include/asm')
| -rw-r--r-- | arch/arm/include/asm/armv8/mpu.h | 61 | ||||
| -rw-r--r-- | arch/arm/include/asm/macro.h | 17 | ||||
| -rw-r--r-- | arch/arm/include/asm/system.h | 24 |
3 files changed, 0 insertions, 102 deletions
diff --git a/arch/arm/include/asm/armv8/mpu.h b/arch/arm/include/asm/armv8/mpu.h deleted file mode 100644 index c6c8828325..0000000000 --- a/arch/arm/include/asm/armv8/mpu.h +++ /dev/null @@ -1,61 +0,0 @@ -/* - * SPDX-License-Identifier: GPL-2.0+ - * - * (C) Copyright 2021 Arm Limited - */ - -#ifndef _ASM_ARMV8_MPU_H_ -#define _ASM_ARMV8_MPU_H_ - -#include <asm/armv8/mmu.h> -#include <asm/barriers.h> -#include <linux/stringify.h> - -#define PRSELR_EL2 S3_4_c6_c2_1 -#define PRBAR_EL2 S3_4_c6_c8_0 -#define PRLAR_EL2 S3_4_c6_c8_1 -#define MPUIR_EL2 S3_4_c0_c0_4 - -#define PRBAR_ADDRESS(addr) ((addr) & ~(0x3fULL)) - -/* Access permissions */ -#define PRBAR_AP(val) (((val) & 0x3) << 2) -#define PRBAR_AP_RW_HYP PRBAR_AP(0x0) -#define PRBAR_AP_RW_ANY PRBAR_AP(0x1) -#define PRBAR_AP_RO_HYP PRBAR_AP(0x2) -#define PRBAR_AP_RO_ANY PRBAR_AP(0x3) - -/* Shareability */ -#define PRBAR_SH(val) (((val) & 0x3) << 4) -#define PRBAR_NON_SH PRBAR_SH(0x0) -#define PRBAR_OUTER_SH PRBAR_SH(0x2) -#define PRBAR_INNER_SH PRBAR_SH(0x3) - -/* Memory attribute (MAIR idx) */ -#define PRLAR_ATTRIDX(val) (((val) & 0x7) << 1) -#define PRLAR_EN_BIT (0x1) -#define PRLAR_ADDRESS(addr) ((addr) & ~(0x3fULL)) - -#ifndef __ASSEMBLY__ - -static inline void setup_el2_mpu_region(uint8_t region, uint64_t base, uint64_t limit) -{ - asm volatile("msr " __stringify(PRSELR_EL2) ", %0" : : "r" (region)); - isb(); - asm volatile("msr " __stringify(PRBAR_EL2) ", %0" : : "r" (base)); - asm volatile("msr " __stringify(PRLAR_EL2) ", %0" : : "r" (limit)); - dsb(); - isb(); -} - -#endif - -struct mpu_region { - u64 start; - u64 end; - u64 attrs; -}; - -extern struct mpu_region *mpu_mem_map; - -#endif /* _ASM_ARMV8_MPU_H_ */ diff --git a/arch/arm/include/asm/macro.h b/arch/arm/include/asm/macro.h index ecd8221c0d..e1eefc283f 100644 --- a/arch/arm/include/asm/macro.h +++ b/arch/arm/include/asm/macro.h @@ -316,23 +316,6 @@ lr .req x30 csel \tmp, \tmp2, \tmp, eq msr hcr_el2, \tmp - /* - * Detect whether the system has a configurable memory system - * architecture at EL1&0 - */ - mrs \tmp, id_aa64mmfr0_el1 - lsr \tmp, \tmp, #48 - and \tmp, \tmp, #((ID_AA64MMFR0_EL1_MSA_MASK | \ - ID_AA64MMFR0_EL1_MSA_FRAC_MASK) >> 48) - cmp \tmp, #((ID_AA64MMFR0_EL1_MSA_USE_FRAC | \ - ID_AA64MMFR0_EL1_MSA_FRAC_VMSA) >> 48) - bne 2f - - /* Ensure the EL1&0 VMSA is enabled */ - mov \tmp, #(VTCR_EL2_MSA) - msr vtcr_el2, \tmp -2: - /* Return to the EL1_SP1 mode from EL2 */ ldr \tmp, =(SPSR_EL_DEBUG_MASK | SPSR_EL_SERR_MASK |\ SPSR_EL_IRQ_MASK | SPSR_EL_FIQ_MASK |\ diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index 1ec6237320..f75eea16b3 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -84,30 +84,6 @@ #define HCR_EL2_HCD_DIS (1 << 29) /* Hypervisor Call disabled */ /* - * VTCR_EL2 bits definitions - */ -#define VTCR_EL2_MSA (1 << 31) /* EL1&0 memory architecture */ - -/* - * ID_AA64MMFR0_EL1 bits definitions - */ -#define ID_AA64MMFR0_EL1_MSA_FRAC_MASK (0xFUL << 52) /* Memory system - architecture - frac */ -#define ID_AA64MMFR0_EL1_MSA_FRAC_VMSA (0x2UL << 52) /* EL1&0 supports - VMSA */ -#define ID_AA64MMFR0_EL1_MSA_FRAC_PMSA (0x1UL << 52) /* EL1&0 only - supports PMSA*/ -#define ID_AA64MMFR0_EL1_MSA_FRAC_NO_PMSA (0x0UL << 52) /* No PMSA - support */ -#define ID_AA64MMFR0_EL1_MSA_MASK (0xFUL << 48) /* Memory system - architecture */ -#define ID_AA64MMFR0_EL1_MSA_USE_FRAC (0xFUL << 48) /* Use MSA_FRAC */ -#define ID_AA64MMFR0_EL1_MSA_VMSA (0x0UL << 48) /* Memory system - architecture - is VMSA */ - -/* * ID_AA64ISAR1_EL1 bits definitions */ #define ID_AA64ISAR1_EL1_GPI (0xF << 28) /* Implementation-defined generic |