| 1,5 → 1,6 |
|---|
| /* |
| * Copyright (C) 2006 Jakub Jermar |
| * Copyright (C) 2006 Jakub Vana |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| 27,120 → 28,73 |
|---|
| */ |
| |
| #include <arch/mm/page.h> |
| #include <genarch/mm/page_ht.h> |
| #include <mm/asid.h> |
| #include <arch/types.h> |
| #include <genarch/mm/page_ht.h> |
| #include <print.h> |
| #include <mm/page.h> |
| #include <mm/frame.h> |
| #include <config.h> |
| #include <panic.h> |
| #include <arch/asm.h> |
| #include <arch/barrier.h> |
| |
| __u64 thash(__u64 va); |
| __u64 thash(__u64 va) |
| /** Initialize VHPT and region registers. */ |
| static void set_vhpt_environment(void) |
| { |
| __u64 ret; |
| asm |
| ( |
| "thash %0=%1;;" |
| :"=r"(ret) |
| :"r" (va) |
| ); |
| region_register rr; |
| pta_register pta; |
| int i; |
| |
| return ret; |
| } |
| |
| __u64 ttag(__u64 va); |
| __u64 ttag(__u64 va) |
| { |
| __u64 ret; |
| asm |
| ( |
| "ttag %0=%1;;" |
| :"=r"(ret) |
| :"r" (va) |
| ); |
| /* |
| * First set up kernel region register. |
| */ |
| rr.word = rr_read(VRN_KERNEL); |
| rr.map.ve = 0; /* disable VHPT walker */ |
| rr.map.ps = PAGE_WIDTH; |
| rr.map.rid = ASID_KERNEL; |
| rr_write(VRN_KERNEL, rr.word); |
| srlz_i(); |
| srlz_d(); |
| |
| return ret; |
| } |
| |
| |
| static void set_VHPT_environment(void) |
| { |
| /* |
| * And invalidate the rest of region register. |
| */ |
| for(i = 0; i < REGION_REGISTERS; i++) { |
| /* skip kernel rr */ |
| if (i == VRN_KERNEL) |
| continue; |
| |
| rr.word == rr_read(i); |
| rr.map.rid = ASID_INVALID; |
| rr_write(i, rr.word); |
| srlz_i(); |
| srlz_d(); |
| } |
| |
| /* |
| TODO: |
| */ |
| * Allocate VHPT and invalidate all its entries. |
| */ |
| page_ht = (pte_t *) frame_alloc(FRAME_KA, VHPT_WIDTH - FRAME_WIDTH, NULL); |
| ht_invalidate_all(); |
| |
| int i; |
| |
| /* First set up REGION REGISTER 0 */ |
| |
| region_register rr; |
| rr.map.ve=0; /*Disable Walker*/ |
| rr.map.ps=PAGE_WIDTH; |
| rr.map.rid=REGION_RID_MAIN; |
| |
| asm |
| ( |
| ";;\n" |
| "srlz.i;;\n" |
| "srlz.d;;\n" |
| "{mov rr[r0]=%0};;\n" |
| "srlz.i;;\n" |
| "srlz.d;;\n" |
| ";;\n" |
| : |
| :"r"(rr.word) |
| ); |
| /* |
| * Set up PTA register. |
| */ |
| pta.word = pta_read(); |
| pta.map.ve = 0; /* disable VHPT walker */ |
| pta.map.vf = 1; /* large entry format */ |
| pta.map.size = VHPT_WIDTH; |
| pta.map.base = (__address) page_ht; |
| pta_write(pta.word); |
| srlz_i(); |
| srlz_d(); |
| } |
| |
| |
| /* And Invalidate the rest of REGION REGISTERS */ |
| for(i=1;i<REGION_REGISTERS;i++) |
| { |
| rr.map.rid=REGION_RID_FIRST_INVALID+i-1; |
| asm |
| ( |
| ";;\n" |
| /* "mov r8=%1;;\n"*/ |
| /* "mov rr[r8]=%0;;\n"*/ |
| "srlz.i;;\n" |
| "srlz.d;;\n" |
| "{mov rr[%1]=%0};;\n" |
| "srlz.i;;\n" |
| "srlz.d;;\n" |
| : |
| :"r"(rr.word),"r"(i) |
| :"r8" |
| ); |
| }; |
| |
| |
| |
| PTA_register pta; |
| pta.map.ve=0; /*Disable Walker*/ |
| pta.map.vf=1; /*Large entry format*/ |
| pta.map.size=VHPT_WIDTH; |
| pta.map.base=VHPT_BASE; |
| |
| return ; |
| |
| printf("pta struct size:%d\n",sizeof(pta)); |
| |
| /*Write PTA*/ |
| asm |
| ( |
| "mov cr8=%0;;" |
| : |
| :"r"(pta.word) |
| ); |
| return ; |
| } |
| |
| |
| /** Initialize ia64 virtual address translation subsystem. */ |
| void page_arch_init(void) |
| { |
| page_operations = &page_ht_operations; |
| pk_disable(); |
| set_VHPT_environment(); |
| set_vhpt_environment(); |
| } |