diff options
Diffstat (limited to 'arch/powerpc/include/asm/mmu.h')
| -rw-r--r-- | arch/powerpc/include/asm/mmu.h | 52 |
1 files changed, 12 insertions, 40 deletions
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h index 5f41565a1e5d..4182d68d9cd1 100644 --- a/arch/powerpc/include/asm/mmu.h +++ b/arch/powerpc/include/asm/mmu.h @@ -16,7 +16,6 @@ */ #define MMU_FTR_HPTE_TABLE ASM_CONST(0x00000001) #define MMU_FTR_TYPE_8xx ASM_CONST(0x00000002) -#define MMU_FTR_TYPE_40x ASM_CONST(0x00000004) #define MMU_FTR_TYPE_44x ASM_CONST(0x00000008) #define MMU_FTR_TYPE_FSL_E ASM_CONST(0x00000010) #define MMU_FTR_TYPE_47x ASM_CONST(0x00000020) @@ -33,7 +32,7 @@ * key 0 controlling userspace addresses on radix * Key 3 on hash */ -#define MMU_FTR_BOOK3S_KUAP ASM_CONST(0x00000200) +#define MMU_FTR_KUAP ASM_CONST(0x00000200) /* * Supports KUEP feature @@ -96,15 +95,6 @@ */ #define MMU_FTR_NEED_DTLB_SW_LRU ASM_CONST(0x00200000) -/* Enable use of TLB reservation. Processor should support tlbsrx. - * instruction and MAS0[WQ]. - */ -#define MMU_FTR_USE_TLBRSRV ASM_CONST(0x00800000) - -/* Use paired MAS registers (MAS7||MAS3, etc.) - */ -#define MMU_FTR_USE_PAIRED_MAS ASM_CONST(0x01000000) - /* Doesn't support the B bit (1T segment) in SLBIE */ #define MMU_FTR_NO_SLBIE_B ASM_CONST(0x02000000) @@ -129,6 +119,9 @@ */ #define MMU_FTR_1T_SEGMENT ASM_CONST(0x40000000) +// NX paste RMA reject in DSI +#define MMU_FTR_NX_DSI ASM_CONST(0x80000000) + /* MMU feature bit sets for various CPUs */ #define MMU_FTRS_DEFAULT_HPTE_ARCH_V2 (MMU_FTR_HPTE_TABLE | MMU_FTR_TLBIEL | MMU_FTR_16M_PAGE) #define MMU_FTRS_POWER MMU_FTRS_DEFAULT_HPTE_ARCH_V2 @@ -139,6 +132,7 @@ #define MMU_FTRS_POWER8 MMU_FTRS_POWER6 #define MMU_FTRS_POWER9 MMU_FTRS_POWER6 #define MMU_FTRS_POWER10 MMU_FTRS_POWER6 +#define MMU_FTRS_POWER11 MMU_FTRS_POWER6 #define MMU_FTRS_CELL MMU_FTRS_DEFAULT_HPTE_ARCH_V2 | \ MMU_FTR_CI_LARGE_PAGE #define MMU_FTRS_PA6T MMU_FTRS_DEFAULT_HPTE_ARCH_V2 | \ @@ -150,11 +144,6 @@ typedef pte_t *pgtable_t; -#ifdef CONFIG_PPC_FSL_BOOK3E -#include <asm/percpu.h> -DECLARE_PER_CPU(int, next_tlbcam_idx); -#endif - enum { MMU_FTRS_POSSIBLE = #if defined(CONFIG_PPC_BOOK3S_604) @@ -163,15 +152,12 @@ enum { #ifdef CONFIG_PPC_8xx MMU_FTR_TYPE_8xx | #endif -#ifdef CONFIG_40x - MMU_FTR_TYPE_40x | -#endif #ifdef CONFIG_PPC_47x MMU_FTR_TYPE_47x | MMU_FTR_USE_TLBIVAX_BCAST | MMU_FTR_LOCK_BCAST_INVAL | #elif defined(CONFIG_44x) MMU_FTR_TYPE_44x | #endif -#ifdef CONFIG_E500 +#ifdef CONFIG_PPC_E500 MMU_FTR_TYPE_FSL_E | MMU_FTR_BIG_PHYS | MMU_FTR_USE_TLBILX | #endif #ifdef CONFIG_PPC_BOOK3S_32 @@ -180,9 +166,6 @@ enum { #ifdef CONFIG_PPC_83xx MMU_FTR_NEED_DTLB_SW_LRU | #endif -#ifdef CONFIG_PPC_BOOK3E_64 - MMU_FTR_USE_TLBRSRV | MMU_FTR_USE_PAIRED_MAS | -#endif #ifdef CONFIG_PPC_BOOK3S_64 MMU_FTR_KERNEL_RO | #ifdef CONFIG_PPC_64S_HASH_MMU @@ -193,11 +176,11 @@ enum { #endif #ifdef CONFIG_PPC_RADIX_MMU MMU_FTR_TYPE_RADIX | - MMU_FTR_GTSE | + MMU_FTR_GTSE | MMU_FTR_NX_DSI | #endif /* CONFIG_PPC_RADIX_MMU */ #endif #ifdef CONFIG_PPC_KUAP - MMU_FTR_BOOK3S_KUAP | + MMU_FTR_KUAP | #endif /* CONFIG_PPC_KUAP */ #ifdef CONFIG_PPC_MEM_KEYS MMU_FTR_PKEY | @@ -215,15 +198,12 @@ enum { #ifdef CONFIG_PPC_8xx #define MMU_FTRS_ALWAYS MMU_FTR_TYPE_8xx #endif -#ifdef CONFIG_40x -#define MMU_FTRS_ALWAYS MMU_FTR_TYPE_40x -#endif #ifdef CONFIG_PPC_47x #define MMU_FTRS_ALWAYS MMU_FTR_TYPE_47x #elif defined(CONFIG_44x) #define MMU_FTRS_ALWAYS MMU_FTR_TYPE_44x #endif -#ifdef CONFIG_E500 +#ifdef CONFIG_PPC_E500 #define MMU_FTRS_ALWAYS MMU_FTR_TYPE_FSL_E #endif @@ -259,12 +239,11 @@ static __always_inline bool mmu_has_feature(unsigned long feature) { int i; -#ifndef __clang__ /* clang can't cope with this */ BUILD_BUG_ON(!__builtin_constant_p(feature)); -#endif + BUILD_BUG_ON(__builtin_popcountl(feature) > 1); #ifdef CONFIG_JUMP_LABEL_FEATURE_CHECK_DEBUG - if (!static_key_initialized) { + if (!static_key_feature_checks_initialized) { printk("Warning! mmu_has_feature() used prior to jump label init!\n"); dump_stack(); return early_mmu_has_feature(feature); @@ -344,17 +323,10 @@ static __always_inline bool early_radix_enabled(void) return early_mmu_has_feature(MMU_FTR_TYPE_RADIX); } -#ifdef CONFIG_STRICT_KERNEL_RWX -static inline bool strict_kernel_rwx_enabled(void) -{ - return rodata_enabled; -} -#else static inline bool strict_kernel_rwx_enabled(void) { - return false; + return IS_ENABLED(CONFIG_STRICT_KERNEL_RWX) && rodata_enabled; } -#endif static inline bool strict_module_rwx_enabled(void) { |