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head/sys/i386/include/pmap_pae.h
| Show First 20 Lines • Show All 95 Lines • ▼ Show 20 Lines | |||||
| #define PTESHIFT (3) | #define PTESHIFT (3) | ||||
| #define PDESHIFT (3) | #define PDESHIFT (3) | ||||
| #define pde_cmpset(pdep, old, new) atomic_cmpset_64_i586(pdep, old, new) | #define pde_cmpset(pdep, old, new) atomic_cmpset_64_i586(pdep, old, new) | ||||
| #define pte_load_store(ptep, pte) atomic_swap_64_i586(ptep, pte) | #define pte_load_store(ptep, pte) atomic_swap_64_i586(ptep, pte) | ||||
| #define pte_load_clear(ptep) atomic_swap_64_i586(ptep, 0) | #define pte_load_clear(ptep) atomic_swap_64_i586(ptep, 0) | ||||
| #define pte_store(ptep, pte) atomic_store_rel_64_i586(ptep, pte) | #define pte_store(ptep, pte) atomic_store_rel_64_i586(ptep, pte) | ||||
| #define pte_store_zero(ptep, pte) \ | |||||
| do { \ | |||||
| uint32_t *p; \ | |||||
| \ | |||||
| MPASS((*ptep & PG_V) == 0); \ | |||||
| p = (void *)ptep; \ | |||||
| *(p + 1) = (uint32_t)(pte >> 32); \ | |||||
| __compiler_membar(); \ | |||||
| *p = (uint32_t)pte; \ | |||||
| } while (0) | |||||
| #define pte_load(ptep) atomic_load_acq_64_i586(ptep) | #define pte_load(ptep) atomic_load_acq_64_i586(ptep) | ||||
| extern pdpt_entry_t *IdlePDPT; | extern pdpt_entry_t *IdlePDPT; | ||||
| extern pt_entry_t pg_nx; | extern pt_entry_t pg_nx; | ||||
| extern pd_entry_t *IdlePTD_pae; /* physical address of "Idle" state directory */ | extern pd_entry_t *IdlePTD_pae; /* physical address of "Idle" state directory */ | ||||
| /* | /* | ||||
| * KPTmap is a linear mapping of the kernel page table. It differs from the | * KPTmap is a linear mapping of the kernel page table. It differs from the | ||||
| Show All 12 Lines | |||||