diff options
Diffstat (limited to 'arch/powerpc/include/asm/processor.h')
-rw-r--r-- | arch/powerpc/include/asm/processor.h | 177 |
1 files changed, 92 insertions, 85 deletions
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index a9993e7a443b..b2c51d337e60 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -6,6 +6,8 @@ * Copyright (C) 2001 PPC 64 Team, IBM Corp */ +#include <vdso/processor.h> + #include <asm/reg.h> #ifdef CONFIG_VSX @@ -63,14 +65,6 @@ extern int _chrp_type; #endif /* defined(__KERNEL__) && defined(CONFIG_PPC32) */ -/* Macros for adjusting thread priority (hardware multi-threading) */ -#define HMT_very_low() asm volatile("or 31,31,31 # very low priority") -#define HMT_low() asm volatile("or 1,1,1 # low priority") -#define HMT_medium_low() asm volatile("or 6,6,6 # medium low priority") -#define HMT_medium() asm volatile("or 2,2,2 # medium priority") -#define HMT_medium_high() asm volatile("or 5,5,5 # medium high priority") -#define HMT_high() asm volatile("or 3,3,3 # high priority") - #ifdef __KERNEL__ #ifdef CONFIG_PPC64 @@ -81,11 +75,6 @@ extern int _chrp_type; struct task_struct; void start_thread(struct pt_regs *regs, unsigned long fdptr, unsigned long sp); -void release_thread(struct task_struct *); - -typedef struct { - unsigned long seg; -} mm_segment_t; #define TS_FPR(i) fp_state.fpr[i][TS_FPROFFSET] #define TS_CKFPR(i) ckfp_state.fpr[i][TS_FPROFFSET] @@ -148,36 +137,43 @@ struct thread_struct { unsigned long ksp_vsid; #endif struct pt_regs *regs; /* Pointer to saved register state */ - mm_segment_t addr_limit; /* for get_fs() validation */ #ifdef CONFIG_BOOKE /* BookE base exception scratch space; align on cacheline */ unsigned long normsave[8] ____cacheline_aligned; #endif #ifdef CONFIG_PPC32 void *pgdir; /* root of page-table tree */ - unsigned long ksp_limit; /* if ksp <= ksp_limit stack overflow */ #ifdef CONFIG_PPC_RTAS unsigned long rtas_sp; /* stack pointer for when in RTAS */ #endif -#endif #if defined(CONFIG_PPC_BOOK3S_32) && defined(CONFIG_PPC_KUAP) unsigned long kuap; /* opened segments for user access */ #endif + unsigned long srr0; + unsigned long srr1; + unsigned long dar; + unsigned long dsisr; +#ifdef CONFIG_PPC_BOOK3S_32 + unsigned long r0, r3, r4, r5, r6, r8, r9, r11; + unsigned long lr, ctr; + unsigned long sr0; +#endif +#endif /* CONFIG_PPC32 */ +#if defined(CONFIG_BOOKE_OR_40x) && defined(CONFIG_PPC_KUAP) + unsigned long pid; /* value written in PID reg. at interrupt exit */ +#endif /* Debug Registers */ struct debug_reg debug; +#ifdef CONFIG_PPC_FPU_REGS struct thread_fp_state fp_state; struct thread_fp_state *fp_save_area; +#endif int fpexc_mode; /* floating-point exception mode */ unsigned int align_ctl; /* alignment handling control */ #ifdef CONFIG_HAVE_HW_BREAKPOINT - struct perf_event *ptrace_bps[HBP_NUM]; - /* - * Helps identify source of single-step exception and subsequent - * hw-breakpoint enablement - */ - struct perf_event *last_hit_ubp; + struct perf_event *ptrace_bps[HBP_NUM_MAX]; #endif /* CONFIG_HAVE_HW_BREAKPOINT */ - struct arch_hw_breakpoint hw_brk; /* info on the hardware breakpoint */ + struct arch_hw_breakpoint hw_brk[HBP_NUM_MAX]; /* hardware breakpoint info */ unsigned long trap_nr; /* last trap # on this thread */ u8 load_slb; /* Ages out SLB preload cache entries */ u8 load_fp; @@ -193,8 +189,10 @@ struct thread_struct { int used_vsr; /* set if process has used VSX */ #endif /* CONFIG_VSX */ #ifdef CONFIG_SPE - unsigned long evr[32]; /* upper 32-bits of SPE regs */ - u64 acc; /* Accumulator */ + struct_group(spe, + unsigned long evr[32]; /* upper 32-bits of SPE regs */ + u64 acc; /* Accumulator */ + ); unsigned long spefscr; /* SPE & eFP status */ unsigned long spefscr_last; /* SPEFSCR value on last prctl call or trap return */ @@ -210,6 +208,7 @@ struct thread_struct { unsigned long tm_tar; unsigned long tm_ppr; unsigned long tm_dscr; + unsigned long tm_amr; /* * Checkpointed FP and VSX 0-31 register set. @@ -224,11 +223,6 @@ struct thread_struct { struct thread_vr_state ckvr_state; /* Checkpointed VR state */ unsigned long ckvrsave; /* Checkpointed VRSAVE */ #endif /* CONFIG_PPC_TRANSACTIONAL_MEM */ -#ifdef CONFIG_PPC_MEM_KEYS - unsigned long amr; - unsigned long iamr; - unsigned long uamor; -#endif #ifdef CONFIG_KVM_BOOK3S_32_HANDLER void* kvm_shadow_vcpu; /* KVM internal data */ #endif /* CONFIG_KVM_BOOK3S_32_HANDLER */ @@ -262,7 +256,11 @@ struct thread_struct { unsigned mmcr0; unsigned used_ebb; - unsigned int used_vas; + unsigned long mmcr3; + unsigned long sier2; + unsigned long sier3; + unsigned long hashkeyr; + #endif }; @@ -279,28 +277,39 @@ struct thread_struct { #define SPEFSCR_INIT #endif -#ifdef CONFIG_PPC32 +#ifdef CONFIG_PPC_BOOK3S_32 +#define SR0_INIT .sr0 = IS_ENABLED(CONFIG_PPC_KUEP) ? SR_NX : 0, +#else +#define SR0_INIT +#endif + +#if defined(CONFIG_PPC_BOOK3S_32) && defined(CONFIG_PPC_KUAP) +#define INIT_THREAD { \ + .ksp = INIT_SP, \ + .pgdir = swapper_pg_dir, \ + .kuap = ~0UL, /* KUAP_NONE */ \ + .fpexc_mode = MSR_FE0 | MSR_FE1, \ + SPEFSCR_INIT \ + SR0_INIT \ +} +#elif defined(CONFIG_PPC32) #define INIT_THREAD { \ .ksp = INIT_SP, \ - .ksp_limit = INIT_SP_LIMIT, \ - .addr_limit = KERNEL_DS, \ .pgdir = swapper_pg_dir, \ .fpexc_mode = MSR_FE0 | MSR_FE1, \ SPEFSCR_INIT \ + SR0_INIT \ } #else #define INIT_THREAD { \ .ksp = INIT_SP, \ - .regs = (struct pt_regs *)INIT_SP - 1, /* XXX bogus, I think */ \ - .addr_limit = KERNEL_DS, \ .fpexc_mode = 0, \ - .fscr = FSCR_TAR | FSCR_EBB \ } #endif -#define task_pt_regs(tsk) ((struct pt_regs *)(tsk)->thread.regs) +#define task_pt_regs(tsk) ((tsk)->thread.regs) -unsigned long get_wchan(struct task_struct *p); +unsigned long __get_wchan(struct task_struct *p); #define KSTK_EIP(tsk) ((tsk)->thread.regs? (tsk)->thread.regs->nip: 0) #define KSTK_ESP(tsk) ((tsk)->thread.regs? (tsk)->thread.regs->gpr[1]: 0) @@ -340,39 +349,45 @@ static inline unsigned long __pack_fe01(unsigned int fpmode) } #ifdef CONFIG_PPC64 -#define cpu_relax() do { HMT_low(); HMT_medium(); barrier(); } while (0) - -#define spin_begin() HMT_low() -#define spin_cpu_relax() barrier() +#define spin_begin() \ + asm volatile(ASM_FTR_IFCLR( \ + "or 1,1,1", /* HMT_LOW */ \ + "nop", /* v3.1 uses pause_short in cpu_relax instead */ \ + %0) :: "i" (CPU_FTR_ARCH_31) : "memory") -#define spin_end() HMT_medium() +#define spin_cpu_relax() \ + asm volatile(ASM_FTR_IFCLR( \ + "nop", /* Before v3.1 use priority nops in spin_begin/end */ \ + PPC_WAIT(2, 0), /* aka pause_short */ \ + %0) :: "i" (CPU_FTR_ARCH_31) : "memory") -#define spin_until_cond(cond) \ -do { \ - if (unlikely(!(cond))) { \ - spin_begin(); \ - do { \ - spin_cpu_relax(); \ - } while (!(cond)); \ - spin_end(); \ - } \ -} while (0) +#define spin_end() \ + asm volatile(ASM_FTR_IFCLR( \ + "or 2,2,2", /* HMT_MEDIUM */ \ + "nop", \ + %0) :: "i" (CPU_FTR_ARCH_31) : "memory") -#else -#define cpu_relax() barrier() #endif -/* Check that a certain kernel stack pointer is valid in task_struct p */ -int validate_sp(unsigned long sp, struct task_struct *p, - unsigned long nbytes); +/* + * Check that a certain kernel stack pointer is a valid (minimum sized) + * stack frame in task_struct p. + */ +int validate_sp(unsigned long sp, struct task_struct *p); + +/* + * validate the stack frame of a particular minimum size, used for when we are + * looking at a certain object in the stack beyond the minimum. + */ +int validate_sp_size(unsigned long sp, struct task_struct *p, + unsigned long nbytes); /* * Prefetch macros. */ #define ARCH_HAS_PREFETCH #define ARCH_HAS_PREFETCHW -#define ARCH_HAS_SPINLOCK_PREFETCH static inline void prefetch(const void *x) { @@ -390,28 +405,14 @@ static inline void prefetchw(const void *x) __asm__ __volatile__ ("dcbtst 0,%0" : : "r" (x)); } -#define spin_lock_prefetch(x) prefetchw(x) - -#define HAVE_ARCH_PICK_MMAP_LAYOUT - -#ifdef CONFIG_PPC64 -static inline unsigned long get_clean_sp(unsigned long sp, int is_32) -{ - if (is_32) - return sp & 0x0ffffffffUL; - return sp; -} -#else -static inline unsigned long get_clean_sp(unsigned long sp, int is_32) -{ - return sp; -} -#endif - /* asm stubs */ extern unsigned long isa300_idle_stop_noloss(unsigned long psscr_val); extern unsigned long isa300_idle_stop_mayloss(unsigned long psscr_val); extern unsigned long isa206_idle_insn_mayloss(unsigned long type); +#ifdef CONFIG_PPC_970_NAP +extern void power4_idle_nap(void); +void power4_idle_nap_return(void); +#endif extern unsigned long cpuidle_disable; enum idle_boot_override {IDLE_NO_OVERRIDE = 0, IDLE_POWERSAVE_OFF}; @@ -419,16 +420,12 @@ enum idle_boot_override {IDLE_NO_OVERRIDE = 0, IDLE_POWERSAVE_OFF}; extern int powersave_nap; /* set if nap mode can be used in idle loop */ extern void power7_idle_type(unsigned long type); -extern void power9_idle_type(unsigned long stop_psscr_val, +extern void arch300_idle_type(unsigned long stop_psscr_val, unsigned long stop_psscr_mask); +void pnv_power9_force_smt4_catch(void); +void pnv_power9_force_smt4_release(void); -extern void flush_instruction_cache(void); -extern void hard_reset_now(void); -extern void poweroff_now(void); extern int fix_alignment(struct pt_regs *); -extern void cvt_fd(float *from, double *to); -extern void cvt_df(double *from, float *to); -extern void _nmask_and_or_msr(unsigned long nmask, unsigned long or_val); #ifdef CONFIG_PPC64 /* @@ -441,6 +438,16 @@ extern void _nmask_and_or_msr(unsigned long nmask, unsigned long or_val); #define NET_IP_ALIGN 0 #endif +int do_mathemu(struct pt_regs *regs); +int do_spe_mathemu(struct pt_regs *regs); +int speround_handler(struct pt_regs *regs); + +/* VMX copying */ +int enter_vmx_usercopy(void); +int exit_vmx_usercopy(void); +int enter_vmx_ops(void); +void *exit_vmx_ops(void *dest); + #endif /* __KERNEL__ */ #endif /* __ASSEMBLY__ */ #endif /* _ASM_POWERPC_PROCESSOR_H */ |