155 lines
3.7 KiB
C
155 lines
3.7 KiB
C
#ifndef _E2K_TLB_REGS_ACCESS_H_
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#define _E2K_TLB_REGS_ACCESS_H_
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#include <asm/tlb_regs_types.h>
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#include <asm/mmu_regs_access.h>
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/*
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* DTLB/ITLB registers operations
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*/
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/*
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* Write Data TLB tag register
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*/
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static inline void
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write_DTLB_tag_reg(tlb_addr_t tlb_addr, tlb_tag_t tlb_tag)
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{
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DebugMR("Write DTLB addr 0x%lx tag 0x%lx\n",
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tlb_addr_val(tlb_addr), tlb_tag_val(tlb_tag));
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WRITE_DTLB_REG(tlb_addr_val(tlb_addr), tlb_tag_val(tlb_tag));
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}
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/*
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* Write Data TLB entry register
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*/
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static inline void
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write_DTLB_entry_reg(tlb_addr_t tlb_addr, mmu_reg_t pte)
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{
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DebugMR("Write DTLB addr 0x%lx entry 0x%llx\n",
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tlb_addr_val(tlb_addr), pte);
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WRITE_DTLB_REG(tlb_addr_val(tlb_addr), pte);
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}
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/*
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* Read Data TLB tag register
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*/
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static inline tlb_tag_t
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read_DTLB_tag_reg(tlb_addr_t tlb_addr)
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{
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tlb_tag_t tlb_tag;
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tlb_tag_val(tlb_tag) = READ_DTLB_REG(tlb_addr_val(tlb_addr));
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DebugTLB("Read DTLB tag 0x%lx for addr 0x%lx\n",
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tlb_tag_val(tlb_tag), tlb_addr_val(tlb_addr));
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return tlb_tag;
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}
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static inline tlb_tag_t
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read_DTLB_va_tag_reg(e2k_addr_t virt_addr, int set_num, int large_page)
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{
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tlb_addr_t tlb_addr;
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tlb_addr = tlb_addr_tag_access;
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tlb_addr = tlb_addr_set_vaddr_line_num(tlb_addr, virt_addr,
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large_page);
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tlb_addr = tlb_addr_set_set_num(tlb_addr, set_num);
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return read_DTLB_tag_reg(tlb_addr);
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}
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/*
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* Read Data TLB entry register
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*/
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static inline mmu_reg_t
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read_DTLB_entry_reg(tlb_addr_t tlb_addr)
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{
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mmu_reg_t pte;
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pte = READ_DTLB_REG(tlb_addr_val(tlb_addr));
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DebugTLB("Read DTLB entry 0x%llx for addr 0x%lx\n",
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pte, tlb_addr_val(tlb_addr));
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return pte;
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}
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static inline mmu_reg_t
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read_DTLB_va_entry_reg(e2k_addr_t virt_addr, int set_num, int large_page)
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{
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tlb_addr_t tlb_addr;
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tlb_addr = tlb_addr_entry_access;
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tlb_addr = tlb_addr_set_vaddr_line_num(tlb_addr, virt_addr,
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large_page);
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tlb_addr = tlb_addr_set_set_num(tlb_addr, set_num);
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return read_DTLB_entry_reg(tlb_addr);
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}
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/*
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* Get Entry probe for virtual address
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*/
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#define GET_MMU_DTLB_ENTRY(virt_addr) \
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(unsigned long)ENTRY_PROBE_MMU_OP(probe_addr_val(virt_addr))
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static inline probe_entry_t
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get_MMU_DTLB_ENTRY(e2k_addr_t virt_addr)
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{
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DebugMR("Get DTLB entry probe for virtual address 0x%lx\n",
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virt_addr);
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return __probe_entry(GET_MMU_DTLB_ENTRY(virt_addr));
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}
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/*
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* Get physical address for virtual address
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*/
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#define GET_MMU_PHYS_ADDR(virt_addr) \
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((unsigned long)ADDRESS_PROBE_MMU_OP(probe_addr_val(virt_addr)))
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static inline probe_entry_t
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get_MMU_phys_addr(e2k_addr_t virt_addr)
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{
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DebugMR("Get physical address for virtual address 0x%lx\n",
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virt_addr);
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return __probe_entry(GET_MMU_PHYS_ADDR(virt_addr));
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}
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typedef struct tlb_set_state {
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tlb_tag_t tlb_tag;
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pte_t tlb_entry;
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} tlb_set_state_t;
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typedef struct tlb_line_state {
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e2k_addr_t va;
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bool huge;
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tlb_set_state_t sets[NATIVE_TLB_SETS_NUM];
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} tlb_line_state_t;
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static inline tlb_tag_t
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get_va_tlb_set_tag(e2k_addr_t addr, int set_no, bool large_page)
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{
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return read_DTLB_va_tag_reg(addr, set_no, large_page);
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}
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static inline pte_t
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get_va_tlb_set_entry(e2k_addr_t addr, int set_no, bool large_page)
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{
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pte_t tlb_entry;
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pte_val(tlb_entry) = read_DTLB_va_entry_reg(addr, set_no, large_page);
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return tlb_entry;
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}
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static inline void
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get_va_tlb_state(tlb_line_state_t *tlb, e2k_addr_t addr, bool large_page)
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{
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tlb_set_state_t *set_state;
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int set_no;
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tlb->va = addr;
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tlb->huge = large_page;
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for (set_no = 0; set_no < NATIVE_TLB_SETS_NUM; set_no++) {
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tlb_tag_t tlb_tag;
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pte_t tlb_entry;
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set_state = &tlb->sets[set_no];
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tlb_tag = get_va_tlb_set_tag(addr, set_no, large_page);
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tlb_entry = get_va_tlb_set_entry(addr, set_no, large_page);
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set_state->tlb_tag = tlb_tag;
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set_state->tlb_entry = tlb_entry;
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}
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}
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#endif /* !_E2K_TLB_REGS_ACCESS_H_ */
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