Commit Graph

57 Commits

Author SHA1 Message Date
Markus Fröschle
c70dc9ae0d for ITLB misses, map following page also since sometimes (prefetch?) the
fault PC reported by the access error exceptions seems to be off a few
instructions.
2014-09-28 16:44:39 +00:00
Markus Fröschle
69539e93a6 replaced constant values with symbolic names 2014-09-28 16:04:15 +00:00
Markus Fröschle
aa3ae8ecba fixed debug printouts. Removed unused ACR settings 2014-09-28 12:31:14 +00:00
Markus Fröschle
4d68242185 first version with C page table handling that works 2014-09-28 11:27:07 +00:00
Markus Fröschle
68b4240355 fixed indexing into page descriptor array with wrong page size 2014-09-27 06:19:43 +00:00
Markus Fröschle
83666ba2f5 fixed (rough) comments 2014-09-26 05:59:02 +00:00
Markus Fröschle
f044fbbe72 for some reason the mapping of EmuTOS doesn't seem to work anymore? 2014-09-25 20:23:28 +00:00
Markus Fröschle
6a1bcae947 runs until EmuTOS scrolls the welcome screen? 2014-09-25 18:41:26 +00:00
Markus Fröschle
a1c4fdff47 experimental branh to use 8k memory pages in MMU TLBs - might ease
implementing memory protection for Coldfire in MiNT
2014-09-25 13:50:07 +00:00
Markus Fröschle
8949a8456e added function to flush only a portion of the caches 2014-09-24 16:02:20 +00:00
Markus Fröschle
02ab73f2cc fixed a few MMU quirks 2014-09-17 05:28:16 +00:00
Markus Fröschle
01141f4251 check for supervisor protection fault and issue a bus error 2014-09-07 19:29:11 +00:00
Markus Fröschle
85798de684 rewritten mmu_map_page() and put into production 2014-09-07 19:01:19 +00:00
Markus Fröschle
baa68901b8 moved more functionality from exceptions.S to interrupts.c. Added debug
printouts to MMU page fault handler
2014-09-07 10:57:58 +00:00
Markus Fröschle
5fae525781 disabled (unnecessary?) cache flush 2014-09-06 18:37:13 +00:00
Markus Fröschle
5c0ec291d8 fixed dbg() printout macro 2014-08-10 18:22:59 +00:00
David Gálvez
77d134150a Make PCI memory space uncachable 2014-07-10 16:46:21 +00:00
Markus Fröschle
bc478f0e0a reverted to last released to make it work again 2014-06-21 06:21:41 +00:00
Markus Fröschle
be773a7d0c removed (now wrong) comment 2014-06-21 05:50:43 +00:00
Markus Fröschle
2bef4a39a5 completed locked TLB list 2014-06-20 20:24:37 +00:00
Markus Fröschle
291d3ad5bf added locked TLB entries 2014-06-20 19:50:49 +00:00
Markus Fröschle
4a6987e3bb started to revert to previous functionality 2014-06-20 18:35:08 +00:00
David Gálvez
4d40bd775a make PCI memory non-cacheable 2014-05-25 19:13:45 +00:00
David Gálvez
d98727a182 add missing parameter initialization 2014-05-25 17:00:19 +00:00
Markus Fröschle
b0fb7b8df3 fixed wrong MMU mapping of emulated Falcon video memory (phys and virt
where the wrong way round)
2014-05-11 06:57:09 +00:00
Markus Fröschle
fb9c4aaa1d modified project to support Qt Creator inferior debugging through BDM. 2014-05-11 06:40:48 +00:00
Markus Fröschle
2f311aedbf modified dbg() macro
corrected irq6 handler
reimplemented MFP interrupt LED blinker in C
2014-05-10 13:21:11 +00:00
Markus Fröschle
fe5b7d466d translated more of the assembler code into C 2014-02-02 21:35:46 +00:00
Markus Fröschle
1fb6c756ae modified to throw errors if an unknown machine type is detected 2014-01-28 15:49:05 +00:00
Markus Fröschle
8a1da417e7 modified ACR settings 2014-01-28 14:11:08 +00:00
Markus Fröschle
6a6e7cf84e fixed: compare virtual address instead of physical in lookup_mapping() 2014-01-21 12:43:32 +00:00
Markus Fröschle
430f03a8ed fixed bug in determining if access error hit in TLB (checked bit 0 instead of 1). 2014-01-20 14:23:55 +00:00
Markus Fröschle
d3fb521ad1 modified MMU mapping table to use symbolic constants from include file 2014-01-19 19:26:52 +00:00
Markus Fröschle
bf8cea26ab simplified MMU code. Still hangs somewhere in EmuTOS 2014-01-19 18:27:05 +00:00
Markus Fröschle
0f5942436a removed locked MMU pages 2014-01-18 20:59:42 +00:00
Markus Fröschle
8544307830 removed inlining in wait.c, added (simple) map-based MMU handling 2014-01-18 14:03:25 +00:00
Markus Fröschle
386a921f84 modified to map memory dynamically based on a static memory map 2014-01-18 08:04:44 +00:00
Markus Fröschle
58418f2436 moved ACR register handling macros to include file 2014-01-17 06:45:33 +00:00
Markus Fröschle
8025af85dd modified access_error to do all MMU mappings dynamically 2014-01-16 20:42:04 +00:00
Markus Fröschle
1c316ec11b extended mmu_map_page() by size and flags args 2014-01-16 16:29:29 +00:00
Markus Fröschle
3779d1cb2e modified ACRs to cover complete SDRAM 2014-01-16 16:18:43 +00:00
Markus Fröschle
c9c76a4757 test using ACR0 & ACR2 to provide supervisor stack access 2014-01-15 16:03:54 +00:00
Markus Fröschle
4112590363 moved page alignment responsibility to caller 2014-01-14 20:28:13 +00:00
Markus Fröschle
fdf945c702 fixed missing parameter in debug print 2014-01-14 18:18:20 +00:00
Markus Fröschle
9b89377caf removed type field from isr_register_handler() and friends 2014-01-14 07:48:38 +00:00
Markus Fröschle
ba1a951952 cleaned up debug printouts 2014-01-13 21:30:39 +00:00
Markus Fröschle
fcb5204fc8 renamed mmutr_miss() to mmu_map_page() (that's what its doing) 2014-01-13 21:26:42 +00:00
Markus Fröschle
63b19853a9 corrected FASTRAM_END comparision 2014-01-13 21:20:24 +00:00
Markus Fröschle
be94d72097 refactored assembler routines from exceptions.S into mmu.c (access exception handler). Seems to be better, but still hang. 2014-01-13 19:39:42 +00:00
Markus Fröschle
9b099d935c implemented safe stack for access exception handler 2014-01-13 15:13:29 +00:00