Changeset d9ee2ea in mainline
- Timestamp:
- 2010-01-10T20:48:38Z (15 years ago)
- Branches:
- lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export
- Children:
- 52cdcbc
- Parents:
- 0ff9e67
- Location:
- kernel/arch/ia64
- Files:
-
- 4 edited
Legend:
- Unmodified
- Added
- Removed
-
kernel/arch/ia64/include/mm/asid.h
r0ff9e67 rd9ee2ea 50 50 * but those extra bits are not used by the kernel. 51 51 */ 52 #define RIDS_PER_ASID 752 #define RIDS_PER_ASID 8 53 53 54 54 #define RID_MAX 262143 /* 2^18 - 1 */ 55 #define RID_KERNEL 0 56 #define RID_INVALID 1 55 #define RID_KERNEL7 7 57 56 58 #define ASID2RID(asid, vrn) (((asid)>RIDS_PER_ASID)?(((asid)*RIDS_PER_ASID)+(vrn)):(asid))59 #define RID2ASID(rid) ((rid)/RIDS_PER_ASID)57 #define ASID2RID(asid, vrn) \ 58 ((asid) * RIDS_PER_ASID + (vrn)) 60 59 61 #define ASID_MAX_ARCH (RID_MAX/RIDS_PER_ASID) 60 #define RID2ASID(rid) \ 61 ((rid) / RIDS_PER_ASID) 62 63 #define ASID_MAX_ARCH (RID_MAX / RIDS_PER_ASID) 62 64 63 65 #endif -
kernel/arch/ia64/src/mm/as.c
r0ff9e67 rd9ee2ea 70 70 rr.word = rr_read(i); 71 71 rr.map.ve = false; /* disable VHPT walker */ 72 if (as == AS_KERNEL) 73 rr.map.rid = RID_INVALID; 74 else 75 rr.map.rid = ASID2RID(as->asid, i); 72 rr.map.rid = ASID2RID(as->asid, i); 76 73 rr.map.ps = PAGE_WIDTH; 77 74 rr_write(i, rr.word); -
kernel/arch/ia64/src/mm/page.c
r0ff9e67 rd9ee2ea 71 71 72 72 /* 73 * First set up kernel region register. 74 * This is redundant (see start.S) but we keep it here just for sure. 75 */ 76 rr.word = rr_read(VRN_KERNEL); 77 rr.map.ve = 0; /* disable VHPT walker */ 78 rr.map.ps = PAGE_WIDTH; 79 rr.map.rid = ASID2RID(ASID_KERNEL, VRN_KERNEL); 80 rr_write(VRN_KERNEL, rr.word); 81 srlz_i(); 82 srlz_d(); 83 84 /* 85 * And setup the rest of region register. 73 * Set up kernel region registers. 74 * VRN_KERNEL has already been set in start.S. 75 * For paranoia reasons, we set it again. 86 76 */ 87 77 for(i = 0; i < REGION_REGISTERS; i++) { 88 /* skip kernel rr */89 if (i == VRN_KERNEL)90 continue;91 92 78 rr.word = rr_read(i); 93 79 rr.map.ve = 0; /* disable VHPT walker */ 94 rr.map.rid = RID_INVALID;80 rr.map.rid = ASID2RID(ASID_KERNEL, i); 95 81 rr.map.ps = PAGE_WIDTH; 96 82 rr_write(i, rr.word); -
kernel/arch/ia64/src/start.S
r0ff9e67 rd9ee2ea 74 74 movl r10 = (RR_MASK) 75 75 and r9 = r10, r9 76 movl r10 = (( RID_KERNEL<< RID_SHIFT) | (KERNEL_PAGE_WIDTH << PS_SHIFT))76 movl r10 = (((RID_KERNEL7) << RID_SHIFT) | (KERNEL_PAGE_WIDTH << PS_SHIFT)) 77 77 or r9 = r10, r9 78 78
Note:
See TracChangeset
for help on using the changeset viewer.