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| author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2002-05-14 16:56:44 +0000 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2002-05-14 16:56:44 +0000 |
| commit | 0d776cd24743625f2888d04d72188b2e3f416a3e (patch) | |
| tree | 3f146379e2bd7bdd9f4ee85485fb5039fc036b71 /c/src/lib/libcpu/powerpc/mpc6xx/mmu/Makefile.am | |
| parent | 2001-05-14 Till Straumann <strauman@slac.stanford.edu> (diff) | |
| download | rtems-0d776cd24743625f2888d04d72188b2e3f416a3e.tar.bz2 | |
2001-05-14 Till Straumann <strauman@slac.stanford.edu>
* rtems/powerpc/registers.h, rtems/score/ppc.h: Per PR213, add
the following:
- support for the MPC74000 (AKA G4); there is no
AltiVec support yet, however.
- the cache flushing assembly code uses hardware-flush on the G4.
Also, a couple of hardcoded numerical values were replaced
by more readable symbolic constants.
- extended interrupt-disabled code section so enclose the entire
cache flush/invalidate procedure (as recommended by the book).
This is not (latency) critical as it is only used by
init code but prevents possible corruption.
- Trivial page table support as been added.
(1:1 effective-virtual-physical address mapping which is only
useful only on CPUs which feature hardware TLB replacement,
e.g. >604. This allows for write-protecting memory regions,
e.g. text/ro-data which makes catching corruptors a lot easier.
It also frees one DBAT/IBAT and gives more flexibility
for setting up address maps :-)
- setdbat() allows changing BAT0 also (since the BSP may use
a page table, BAT0 could be available...).
- asm_setdbatX() violated the SVR ABI by using
r20 as a scratch register; changed for r0
- according to the book, a context synchronizing instruction is
necessary prior to and after changing a DBAT -> isync added
Diffstat (limited to 'c/src/lib/libcpu/powerpc/mpc6xx/mmu/Makefile.am')
| -rw-r--r-- | c/src/lib/libcpu/powerpc/mpc6xx/mmu/Makefile.am | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/c/src/lib/libcpu/powerpc/mpc6xx/mmu/Makefile.am b/c/src/lib/libcpu/powerpc/mpc6xx/mmu/Makefile.am index c55d3cdd81..fa40244040 100644 --- a/c/src/lib/libcpu/powerpc/mpc6xx/mmu/Makefile.am +++ b/c/src/lib/libcpu/powerpc/mpc6xx/mmu/Makefile.am @@ -5,13 +5,13 @@ PGM = $(ARCH)/mmu.rel -C_FILES = bat.c +C_FILES = bat.c pte121.c S_FILES = mmuAsm.S include_libcpudir = $(includedir)/libcpu -include_libcpu_HEADERS = bat.h +include_libcpu_HEADERS = bat.h pte121.h mmu_rel_OBJECTS = $(C_FILES:%.c=$(ARCH)/%.o) $(S_FILES:%.S=$(ARCH)/%.o) @@ -38,6 +38,6 @@ all-local: $(ARCH) $(PREINSTALL_FILES) $(mmu_rel_OBJECTS) $(PGM) .PRECIOUS: $(PGM) -EXTRA_DIST = bat.c bat.h mmuAsm.S +EXTRA_DIST = bat.c bat.h mmuAsm.S pte121.c pte121.h include $(top_srcdir)/../../../../../automake/local.am |