diff options
| author | Dale Rahn <drahn@cvs.openbsd.org> | 2001-01-18 23:00:43 +0000 |
|---|---|---|
| committer | Dale Rahn <drahn@cvs.openbsd.org> | 2001-01-18 23:00:43 +0000 |
| commit | dcd51bbfe7db46870b96682f0a533fa31cf8a05c (patch) | |
| tree | 38901a23542deedc1db0cca119c1d18331c066d1 | |
| parent | 6bb83fd4f02325a8c14cd316e3d54536a3e87e91 (diff) | |
Support more than 256MB of physical memory.
Other pieces of the kernel need to be reviewed that 256+MB does not cause
other problems with the kernel accessing memory via user sr registers,
instead of via the BAT registers. when in kernel context, segment registers
0-7 should _NOT_ have user mappings in them.
| -rw-r--r-- | sys/arch/powerpc/powerpc/machdep.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/sys/arch/powerpc/powerpc/machdep.c b/sys/arch/powerpc/powerpc/machdep.c index 3e80964a191..d15f6d09c3e 100644 --- a/sys/arch/powerpc/powerpc/machdep.c +++ b/sys/arch/powerpc/powerpc/machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: machdep.c,v 1.50 2000/10/27 00:16:17 mickey Exp $ */ +/* $OpenBSD: machdep.c,v 1.51 2001/01/18 23:00:42 drahn Exp $ */ /* $NetBSD: machdep.c,v 1.4 1996/10/16 19:33:11 ws Exp $ */ /* @@ -198,7 +198,22 @@ where = 3; battable[0].batl = BATL(0x00000000, BAT_M); battable[0].batu = BATU(0x00000000); -#if 1 + /* map all of possible physical memory, ick */ + battable[0x1].batl = BATL(0x10000000, BAT_M); + battable[0x1].batu = BATU(0x10000000); + battable[0x2].batl = BATL(0x20000000, BAT_M); + battable[0x2].batu = BATU(0x20000000); + battable[0x3].batl = BATL(0x30000000, BAT_M); + battable[0x3].batu = BATU(0x30000000); + battable[0x4].batl = BATL(0x40000000, BAT_M); + battable[0x4].batu = BATU(0x40000000); + battable[0x5].batl = BATL(0x50000000, BAT_M); + battable[0x5].batu = BATU(0x50000000); + battable[0x6].batl = BATL(0x60000000, BAT_M); + battable[0x6].batu = BATU(0x60000000); + battable[0x7].batl = BATL(0x70000000, BAT_M); + battable[0x7].batu = BATU(0x70000000); + battable[0x8].batl = BATL(0x80000000, BAT_I); battable[0x8].batu = BATU(0x80000000); battable[0x9].batl = BATL(0x90000000, BAT_I); @@ -206,15 +221,6 @@ where = 3; battable[0xa].batl = BATL(0xa0000000, BAT_I); battable[0xa].batu = BATU(0xa0000000); segment8_a_mapped = 1; -#if 0 - if(system_type == POWER4e) { - /* Map ISA I/O */ - addbatmap(MPC106_V_ISA_IO_SPACE, MPC106_P_ISA_IO_SPACE, BAT_I); - battable[1].batl = BATL(0xbfffe000, BAT_I); - battable[1].batu = BATU(0xbfffe000); - } -#endif -#endif /* * Now setup fixed bat registers |