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451 Commits

Author SHA1 Message Date
wiz
611461bc5e memcpy -> memmove. Noted by Tsubai Masanari. 2001-07-22 13:21:04 +00:00
wiz
0ef3731e14 Replace memcpy's of obviously overlapping regions with memmove. 
Noted by Izumi Tsutsui.
 2001-07-22 13:08:09 +00:00
wiz
c5a6be17f4 bcopy -> memcpy, bzero -> memset, bcmp -> memcmp. 
Reviewed by Matt Thomas, ok'd by Tsubai Masanari.
 2001-07-22 11:29:44 +00:00
thorpej
babefc5331 Add BUS_DMA_READ and BUS_DMA_WRITE flags, that hint the back-end 
at dmamap load time that the mapping will be used for a unidirectional
transfer of the specified direction.
 2001-07-19 15:32:10 +00:00
toshii
4866f1a22b Fix typo. s/extention/extension/ 2001-07-05 08:38:24 +00:00
matt
454a630dbd Print both the lower and upper dbat register when printing dbat registers. 2001-06-30 02:03:16 +00:00
matt
39fa08a172 Reset segment registers 1-7 upon entry to kernel (via trap or interrupts) 
so that the bat spill code won't run into spurious valid user pages and
treat them as kernel pages.  Restore segment registers 1-7 upon return to
user mode from either a trap or interrupt.   XXX  eventually do all 16 SRs
 2001-06-30 01:24:13 +00:00
matt
7c5977ea4f Fix a spurious debug printf. 
Fix pmap_procwr to not check a NULL pvo.  (Duh!)
Reformat pmap_print_mmuregs.  Actually *fill in* the dbat registers.
 2001-06-30 01:21:24 +00:00
matt
03ff023c76 Onfault needs to be done even from interrupts so restore that. Default 
to EFAULT for the error.
 2001-06-28 21:27:47 +00:00
matt
6ca9622494 Add pmap_interrupt_* to pmap_*map_pa. Remove interrupt toggling from 
pmap_pte_spill.  Fix pmap_protect.  Macroize mfsrin instruction.
 2001-06-28 20:35:21 +00:00
matt
78c7d18804 Turn on PMAP_MAP_POOLPAGE 2001-06-28 20:31:37 +00:00
matt
fdb7751e9c Update for thorepj's UVM changes. Don't even try to call uvm_fault or do 
pcb_onfault recovery while in interrupt mode.  Just die.  Print out error
returned from uvm_fault (-1 for interrupts).
 2001-06-28 18:33:39 +00:00
matt
87a64549c4 Change a bcopy to a structure copy. 2001-06-28 15:23:39 +00:00
matt
6bad4f04a0 Record any stack growth. This fixes a serious problem with core dumps. 
Without this change, coredumps will only contain one page of stack
regardless of how many pages of stack the process actually has.
 2001-06-26 13:00:18 +00:00
simonb
f285587c4e Fix typo in emac0 base address. 2001-06-25 01:49:15 +00:00
simonb
78cdef0bfc Move on-chip 405GP devices to powerpc/ibm4xx/dev. 2001-06-24 02:13:37 +00:00
simonb
8980655597 Move 405GP registers, addresses and other info to ibm405gp.h. Leave only 
board-specific addresses and other info in walnut.h.
 2001-06-24 01:13:11 +00:00
matt
7effaaaa7c Disable interrupts when dealing with pvo lists. clean up some things. 
Keep track of executable ness of pages.  Of sync icache executable pages.
 2001-06-23 03:17:32 +00:00
matt
dde0daca06 Use __asm __volatile. Use _POWERPC_SPR_H_ 
Add PTE_RO/PTE_RW for old pmap.
 2001-06-23 03:16:11 +00:00
matt
e25aa0ea82 Use pmap_kenter_pa instead of pmap_enter for phys_map 2001-06-23 03:10:59 +00:00
matt
5d30ec2c7e Use SPR_xxx for the *MISS HASH CMP, etc. 2001-06-23 02:36:14 +00:00
simonb
363019a6c1 Add a db_active variable that indicates if a call to the debugger is 
active.  Seems to be required by the MI com driver nowadays.
 2001-06-22 11:40:41 +00:00
simonb
7fe4c3ba1d Make this compile when DEBUG isn't defined. 2001-06-22 03:25:39 +00:00
matt
41d73006f1 DMISS/DCMP/HASH1/HASH2/IMISS/ICMP/RPA are also valid on the MPC6XX 
(specially the 603 and maybe the 601)
 2001-06-22 00:01:25 +00:00
matt
6d3037579c Change a debugging message a bit. 2001-06-21 22:05:50 +00:00
matt
756d684c5a Rename/enumerate the PTE protection bits to their real purposes. 2001-06-21 18:03:37 +00:00
matt
467c0ed022 Rework pmap_bootstrap. Fix some comments. Add old copyright until i finish 
excising that code.
 2001-06-21 03:26:12 +00:00
briggs
279833d138 Build for kgdb as well as for ddb (mutually exclusive). 2001-06-20 02:40:14 +00:00
simonb
d4bcd9c735 Add/change prototypes so that macpcc builds with -Wstrict-prototypes. 2001-06-19 12:02:55 +00:00
simonb
97b16e911f Move the DSISR SPR bit definitions from <powerpc/mpc6xx/pte.h> to 
<powerpc/spr.h>.  Remove unused ISI/SRR1 bit definitions.
 2001-06-19 07:14:23 +00:00
christos
59abdecf4b Add a linux specific trapsignal() function. This is just a passthrough 
on all platforms but the i386. On the i386 we look at T_PROTFLT and send
a SIGSEGV instead of SIGBUS. This makes allegro lisp 5.0 and pvs (a proof
verification system) to work.

XXX[1]: We need to go through each architecture and verify that we send
        the correct signal on each trap type.
XXX[2]: trap.c on all other architectures but i386 needs to be modified
        to s/trapsignal/(*p->p_emul->e_trapsignal)/g
 2001-06-18 02:04:42 +00:00
tsubai
91f99e1981 Forgot to commit this -- move file .../bus_dma.c line to files.${machine}. 2001-06-17 19:32:17 +00:00
simonb
56151c1fef Make this compile and work for the IBM 4xx series CPUs. 2001-06-17 13:39:33 +00:00
simonb
d70d5d1ee0 Use _C_LABEL() for externally referenced symbols. 2001-06-17 13:39:02 +00:00
simonb
0647591d3a Globalise "trapexit" for new ddb tracing changes. 2001-06-17 13:38:33 +00:00
matt
38fc9e283d Fix pte_spill to set the index on the proper pvo. Deal with recursion 
in pmap_syncicache.
 2001-06-16 03:32:48 +00:00
matt
979edf3c4a pmap_syncicache can be called recursively. Properly deal with that 
situation.
 2001-06-15 22:28:54 +00:00
matt
60f8375758 Replace printf with (*pr) 2001-06-15 22:27:07 +00:00
matt
e55c9f74af Add missing braces in pmap_pte_to_pvo (DEBUG|PMAPCHECK defined). Rearrange 
some code so that consistency check in pmap_pte_to_pvo do not trigger on
false positives.  Correct/enhance some printfs.
 2001-06-15 21:29:54 +00:00
matt
25a2c4d481 While not stricly needed, to match pmap_pvo_find_va, mask of the page 
offset bits.
 2001-06-15 20:53:45 +00:00
matt
787e1b0b36 When comparing VA's, ignore the page offset bits. 
Invert and strengthen a test for pte equality.
 2001-06-15 20:43:01 +00:00
matt
c7c7dab8f1 Stop overloading unused bits in the pte. Use the low 12bits of the vaddr 
instead to store them.  Add a macro to fetch the vaddr without them.
Make all variables/routines prefixed with pmap_
Cleanup & fix some of the vsid bitmap usage.
Cleanup DEBUG printfs.  Add some more checks to pmap_pvo_to_pte.
 2001-06-15 18:26:06 +00:00
matt
192642af05 Don't enable PMAPCHECK by default. 2001-06-15 08:17:00 +00:00
matt
f6b81171c1 Globalize trapexit. Improve db_trace.c so that you can trace thru traps! 
Rework the output so that is also prints the frame address by default.
 2001-06-15 08:09:33 +00:00
matt
0278444e19 Add a check to pvo_check which makes sure the pte is really in the 
pteg_table.   In pte_to_va, take into account if the PTE_HID is set.
 2001-06-15 08:08:04 +00:00
matt
ab92d9cd59 phys_map should use kenter/kremove 2001-06-15 08:07:03 +00:00
matt
816a5637cd When releasing the SR VSID, mask off the bits not related to the index 
in the pmap vsid bitmap.
 2001-06-15 06:27:07 +00:00
simonb
18b2f7e6a1 Add a port to IBM's PPC405GP Reference Board (the "walnut") 
by Eduardo Horvath and Simon Burge of Wasabi Systems.

IBM 4xx series CPU features:
 - New pmap and revised trap handler.
 - Support on-chip timers, PCI controller, UARTs
 - Framework for on-chip ethernet and watchdog timer.
General PowerPC features:
 - Add in-kernel PPC floating point emulation
 - New in{,4}_cksum that is between 1.5 and 5 times faster than the
   old version depending on CPU type.
General changes:
 - Kernel support for generic dbsym-style symbols.
 2001-06-13 06:01:44 +00:00
tsubai
713feac239 Include powerpc/mpc6xx/{bat.h,pte.h} if PPC_MPC6XX is defined. 2001-06-12 17:20:50 +00:00
simonb
0bdd2faeed Get the opcode mask right for almost all the Op_OE opcodes (only two were 
correct).
 2001-06-12 05:31:44 +00:00