diff options
Diffstat (limited to 'include/exec/cputlb.h')
| -rw-r--r-- | include/exec/cputlb.h | 200 |
1 files changed, 191 insertions, 9 deletions
diff --git a/include/exec/cputlb.h b/include/exec/cputlb.h index cdfaf17..8125f68 100644 --- a/include/exec/cputlb.h +++ b/include/exec/cputlb.h @@ -25,21 +25,14 @@ #include "exec/memattrs.h" #include "exec/vaddr.h" -#ifdef CONFIG_TCG - -#if !defined(CONFIG_USER_ONLY) -/* cputlb.c */ +#if defined(CONFIG_TCG) && !defined(CONFIG_USER_ONLY) void tlb_protect_code(ram_addr_t ram_addr); void tlb_unprotect_code(ram_addr_t ram_addr); #endif -#endif /* CONFIG_TCG */ - #ifndef CONFIG_USER_ONLY - void tlb_reset_dirty(CPUState *cpu, ram_addr_t start1, ram_addr_t length); void tlb_reset_dirty_range_all(ram_addr_t start, ram_addr_t length); - #endif /** @@ -101,4 +94,193 @@ void tlb_set_page(CPUState *cpu, vaddr addr, hwaddr paddr, int prot, int mmu_idx, vaddr size); -#endif +#if defined(CONFIG_TCG) && !defined(CONFIG_USER_ONLY) +/** + * tlb_flush_page: + * @cpu: CPU whose TLB should be flushed + * @addr: virtual address of page to be flushed + * + * Flush one page from the TLB of the specified CPU, for all + * MMU indexes. + */ +void tlb_flush_page(CPUState *cpu, vaddr addr); + +/** + * tlb_flush_page_all_cpus_synced: + * @cpu: src CPU of the flush + * @addr: virtual address of page to be flushed + * + * Flush one page from the TLB of all CPUs, for all + * MMU indexes. + * + * When this function returns, no CPUs will subsequently perform + * translations using the flushed TLBs. + */ +void tlb_flush_page_all_cpus_synced(CPUState *src, vaddr addr); + +/** + * tlb_flush: + * @cpu: CPU whose TLB should be flushed + * + * Flush the entire TLB for the specified CPU. Most CPU architectures + * allow the implementation to drop entries from the TLB at any time + * so this is generally safe. If more selective flushing is required + * use one of the other functions for efficiency. + */ +void tlb_flush(CPUState *cpu); + +/** + * tlb_flush_all_cpus_synced: + * @cpu: src CPU of the flush + * + * Flush the entire TLB for all CPUs, for all MMU indexes. + * + * When this function returns, no CPUs will subsequently perform + * translations using the flushed TLBs. + */ +void tlb_flush_all_cpus_synced(CPUState *src_cpu); + +/** + * tlb_flush_page_by_mmuidx: + * @cpu: CPU whose TLB should be flushed + * @addr: virtual address of page to be flushed + * @idxmap: bitmap of MMU indexes to flush + * + * Flush one page from the TLB of the specified CPU, for the specified + * MMU indexes. + */ +void tlb_flush_page_by_mmuidx(CPUState *cpu, vaddr addr, + uint16_t idxmap); + +/** + * tlb_flush_page_by_mmuidx_all_cpus_synced: + * @cpu: Originating CPU of the flush + * @addr: virtual address of page to be flushed + * @idxmap: bitmap of MMU indexes to flush + * + * Flush one page from the TLB of all CPUs, for the specified + * MMU indexes. + * + * When this function returns, no CPUs will subsequently perform + * translations using the flushed TLBs. + */ +void tlb_flush_page_by_mmuidx_all_cpus_synced(CPUState *cpu, vaddr addr, + uint16_t idxmap); + +/** + * tlb_flush_by_mmuidx: + * @cpu: CPU whose TLB should be flushed + * @wait: If true ensure synchronisation by exiting the cpu_loop + * @idxmap: bitmap of MMU indexes to flush + * + * Flush all entries from the TLB of the specified CPU, for the specified + * MMU indexes. + */ +void tlb_flush_by_mmuidx(CPUState *cpu, uint16_t idxmap); + +/** + * tlb_flush_by_mmuidx_all_cpus_synced: + * @cpu: Originating CPU of the flush + * @idxmap: bitmap of MMU indexes to flush + * + * Flush all entries from the TLB of all CPUs, for the specified + * MMU indexes. + * + * When this function returns, no CPUs will subsequently perform + * translations using the flushed TLBs. + */ +void tlb_flush_by_mmuidx_all_cpus_synced(CPUState *cpu, uint16_t idxmap); + +/** + * tlb_flush_page_bits_by_mmuidx + * @cpu: CPU whose TLB should be flushed + * @addr: virtual address of page to be flushed + * @idxmap: bitmap of mmu indexes to flush + * @bits: number of significant bits in address + * + * Similar to tlb_flush_page_mask, but with a bitmap of indexes. + */ +void tlb_flush_page_bits_by_mmuidx(CPUState *cpu, vaddr addr, + uint16_t idxmap, unsigned bits); + +/* Similarly, with broadcast and syncing. */ +void tlb_flush_page_bits_by_mmuidx_all_cpus_synced(CPUState *cpu, vaddr addr, + uint16_t idxmap, + unsigned bits); + +/** + * tlb_flush_range_by_mmuidx + * @cpu: CPU whose TLB should be flushed + * @addr: virtual address of the start of the range to be flushed + * @len: length of range to be flushed + * @idxmap: bitmap of mmu indexes to flush + * @bits: number of significant bits in address + * + * For each mmuidx in @idxmap, flush all pages within [@addr,@addr+@len), + * comparing only the low @bits worth of each virtual page. + */ +void tlb_flush_range_by_mmuidx(CPUState *cpu, vaddr addr, + vaddr len, uint16_t idxmap, + unsigned bits); + +/* Similarly, with broadcast and syncing. */ +void tlb_flush_range_by_mmuidx_all_cpus_synced(CPUState *cpu, + vaddr addr, + vaddr len, + uint16_t idxmap, + unsigned bits); +#else +static inline void tlb_flush_page(CPUState *cpu, vaddr addr) +{ +} +static inline void tlb_flush_page_all_cpus_synced(CPUState *src, vaddr addr) +{ +} +static inline void tlb_flush(CPUState *cpu) +{ +} +static inline void tlb_flush_all_cpus_synced(CPUState *src_cpu) +{ +} +static inline void tlb_flush_page_by_mmuidx(CPUState *cpu, + vaddr addr, uint16_t idxmap) +{ +} + +static inline void tlb_flush_by_mmuidx(CPUState *cpu, uint16_t idxmap) +{ +} +static inline void tlb_flush_page_by_mmuidx_all_cpus_synced(CPUState *cpu, + vaddr addr, + uint16_t idxmap) +{ +} +static inline void tlb_flush_by_mmuidx_all_cpus_synced(CPUState *cpu, + uint16_t idxmap) +{ +} +static inline void tlb_flush_page_bits_by_mmuidx(CPUState *cpu, + vaddr addr, + uint16_t idxmap, + unsigned bits) +{ +} +static inline void +tlb_flush_page_bits_by_mmuidx_all_cpus_synced(CPUState *cpu, vaddr addr, + uint16_t idxmap, unsigned bits) +{ +} +static inline void tlb_flush_range_by_mmuidx(CPUState *cpu, vaddr addr, + vaddr len, uint16_t idxmap, + unsigned bits) +{ +} +static inline void tlb_flush_range_by_mmuidx_all_cpus_synced(CPUState *cpu, + vaddr addr, + vaddr len, + uint16_t idxmap, + unsigned bits) +{ +} +#endif /* CONFIG_TCG && !CONFIG_USER_ONLY */ +#endif /* CPUTLB_H */ |