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yaml --- r: 77695 b: refs/heads/master c: cdcc970 h: refs/heads/master i: 77693: 1cc9d5f 77691: 74831c8 77687: ef16f83 77679: 9fb8f7a 77663: 4812d91 77631: 8d3c7ac 77567: 29a7615 v: v3
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Paul Mundt
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Jan 28, 2008
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| Original file line number | Diff line number | Diff line change |
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| @@ -1,2 +1,2 @@ | ||
| --- | ||
| refs/heads/master: 9085fa1255fc16bf0dbd217e9f4cdccf16f064d3 | ||
| refs/heads/master: cdcc970829e81da3445346cb71b2ea264c9952b9 |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,27 @@ | ||
| #ifndef __ASM_SH_CPU_SH5_MMU_CONTEXT_H | ||
| #define __ASM_SH_CPU_SH5_MMU_CONTEXT_H | ||
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| /* Common defines */ | ||
| #define TLB_STEP 0x00000010 | ||
| #define TLB_PTEH 0x00000000 | ||
| #define TLB_PTEL 0x00000008 | ||
|
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||
| /* PTEH defines */ | ||
| #define PTEH_ASID_SHIFT 2 | ||
| #define PTEH_VALID 0x0000000000000001 | ||
| #define PTEH_SHARED 0x0000000000000002 | ||
| #define PTEH_MATCH_ASID 0x00000000000003ff | ||
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| #ifndef __ASSEMBLY__ | ||
| /* This has to be a common function because the next location to fill | ||
| * information is shared. */ | ||
| extern void __do_tlb_refill(unsigned long address, unsigned long long is_text_not_data, pte_t *pte); | ||
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| /* Profiling counter. */ | ||
| #ifdef CONFIG_SH64_PROC_TLB | ||
| extern unsigned long long calls_to_do_fast_page_fault; | ||
| #endif | ||
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| #endif /* __ASSEMBLY__ */ | ||
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| #endif /* __ASM_SH_CPU_SH5_MMU_CONTEXT_H */ |
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| @@ -0,0 +1,47 @@ | ||
| #ifndef __ASM_SH_MMU_CONTEXT_32_H | ||
| #define __ASM_SH_MMU_CONTEXT_32_H | ||
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| /* | ||
| * Destroy context related info for an mm_struct that is about | ||
| * to be put to rest. | ||
| */ | ||
| static inline void destroy_context(struct mm_struct *mm) | ||
| { | ||
| /* Do nothing */ | ||
| } | ||
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| static inline void set_asid(unsigned long asid) | ||
| { | ||
| unsigned long __dummy; | ||
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| __asm__ __volatile__ ("mov.l %2, %0\n\t" | ||
| "and %3, %0\n\t" | ||
| "or %1, %0\n\t" | ||
| "mov.l %0, %2" | ||
| : "=&r" (__dummy) | ||
| : "r" (asid), "m" (__m(MMU_PTEH)), | ||
| "r" (0xffffff00)); | ||
| } | ||
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| static inline unsigned long get_asid(void) | ||
| { | ||
| unsigned long asid; | ||
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| __asm__ __volatile__ ("mov.l %1, %0" | ||
| : "=r" (asid) | ||
| : "m" (__m(MMU_PTEH))); | ||
| asid &= MMU_CONTEXT_ASID_MASK; | ||
| return asid; | ||
| } | ||
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| /* MMU_TTB is used for optimizing the fault handling. */ | ||
| static inline void set_TTB(pgd_t *pgd) | ||
| { | ||
| ctrl_outl((unsigned long)pgd, MMU_TTB); | ||
| } | ||
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| static inline pgd_t *get_TTB(void) | ||
| { | ||
| return (pgd_t *)ctrl_inl(MMU_TTB); | ||
| } | ||
| #endif /* __ASM_SH_MMU_CONTEXT_32_H */ |
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| @@ -0,0 +1,75 @@ | ||
| #ifndef __ASM_SH_MMU_CONTEXT_64_H | ||
| #define __ASM_SH_MMU_CONTEXT_64_H | ||
|
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| /* | ||
| * sh64-specific mmu_context interface. | ||
| * | ||
| * Copyright (C) 2000, 2001 Paolo Alberelli | ||
| * Copyright (C) 2003 - 2007 Paul Mundt | ||
| * | ||
| * This file is subject to the terms and conditions of the GNU General Public | ||
| * License. See the file "COPYING" in the main directory of this archive | ||
| * for more details. | ||
| */ | ||
| #include <asm/cpu/registers.h> | ||
| #include <asm/cacheflush.h> | ||
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| #define SR_ASID_MASK 0xffffffffff00ffffULL | ||
| #define SR_ASID_SHIFT 16 | ||
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| /* | ||
| * Destroy context related info for an mm_struct that is about | ||
| * to be put to rest. | ||
| */ | ||
| static inline void destroy_context(struct mm_struct *mm) | ||
| { | ||
| /* Well, at least free TLB entries */ | ||
| flush_tlb_mm(mm); | ||
| } | ||
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| static inline unsigned long get_asid(void) | ||
| { | ||
| unsigned long long sr; | ||
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| asm volatile ("getcon " __SR ", %0\n\t" | ||
| : "=r" (sr)); | ||
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| sr = (sr >> SR_ASID_SHIFT) & MMU_CONTEXT_ASID_MASK; | ||
| return (unsigned long) sr; | ||
| } | ||
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| /* Set ASID into SR */ | ||
| static inline void set_asid(unsigned long asid) | ||
| { | ||
| unsigned long long sr, pc; | ||
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| asm volatile ("getcon " __SR ", %0" : "=r" (sr)); | ||
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| sr = (sr & SR_ASID_MASK) | (asid << SR_ASID_SHIFT); | ||
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| /* | ||
| * It is possible that this function may be inlined and so to avoid | ||
| * the assembler reporting duplicate symbols we make use of the | ||
| * gas trick of generating symbols using numerics and forward | ||
| * reference. | ||
| */ | ||
| asm volatile ("movi 1, %1\n\t" | ||
| "shlli %1, 28, %1\n\t" | ||
| "or %0, %1, %1\n\t" | ||
| "putcon %1, " __SR "\n\t" | ||
| "putcon %0, " __SSR "\n\t" | ||
| "movi 1f, %1\n\t" | ||
| "ori %1, 1 , %1\n\t" | ||
| "putcon %1, " __SPC "\n\t" | ||
| "rte\n" | ||
| "1:\n\t" | ||
| : "=r" (sr), "=r" (pc) : "0" (sr)); | ||
| } | ||
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| /* No spare register to twiddle, so use a software cache */ | ||
| extern pgd_t *mmu_pdtp_cache; | ||
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| #define set_TTB(pgd) (mmu_pdtp_cache = (pgd)) | ||
| #define get_TTB() (mmu_pdtp_cache) | ||
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| #endif /* __ASM_SH_MMU_CONTEXT_64_H */ |
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