Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Punt some historical stuff that was ifdefed out.

This commit is contained in:
gwr 1997-01-14 21:01:33 +00:00
parent daa7a6dc57
commit 2ffbfe169b
2 changed files with 2 additions and 124 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

63
sys/arch/sun3/sun3x/pmap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.1.1.1 1997/01/14 20:57:08 gwr Exp $ */
/* $NetBSD: pmap.c,v 1.2 1997/01/14 21:01:33 gwr Exp $ */
/*-
* Copyright (c) 1996 The NetBSD Foundation, Inc.
@ -757,67 +757,6 @@ pmap_alloc_etc()
void
pmap_bootstrap_copyprom()
{
#if 0 /* XXX - Just history... */
/*
* XXX - This method makes DVMA difficult, because
* the PROM only provides PTEs for 1M of DVMA space.
* That's OK for boot programs, but not a VM system.
*/
int a_idx;
mmu_long_dte_t *mon_atbl;
/*
* Copy the last entry (PROM monitor and DVMA mappings)
* so our level-A table will use the PROM level-B table.
*/
mon_atbl = (mmu_long_dte_t *) mon_crp.paddr;
a_idx = MMU_TIA(VM_MAX_KERNEL_ADDRESS);
kernAbase[a_idx].attr.raw = mon_atbl[a_idx].attr.raw;
kernAbase[a_idx].addr.raw = mon_atbl[a_idx].addr.raw;
#endif
#if 0 /* XXX - More history... */
/*
* XXX - This method is OK with our DVMA implementation,
* but causes pmap_extract() to be ignorant of the PROM
* mappings. Maybe that's OK. If not, we should just
* copy the PTEs (level-C) from the PROM. -gwr
*/
mmu_long_dte_t *mon_atbl;
mmu_short_dte_t *mon_btbl;
mmu_short_dte_t *our_btbl;
int a_idx, b_idx;
/*
* Copy parts of the level-B table from the PROM for
* mappings that the PROM cares about.
*/
mon_atbl = (mmu_long_dte_t *) mon_crp.paddr;
a_idx = MMU_TIA(MON_KDB_START);
mon_btbl = (mmu_short_dte_t *) mon_atbl[a_idx].addr.raw;
/* Temporary use of b_idx to find our level-B table. */
b_idx = MMU_B_TBL_SIZE * (a_idx - MMU_TIA(KERNBASE));
our_btbl = &kernBbase[b_idx];
/*
* Preserve both the kadb and monitor mappings (2MB).
* We could have started at MONSTART, but this costs
* us nothing, and might be useful someday...
*/
for (b_idx = MMU_TIB(MON_KDB_START);
b_idx < MMU_TIB(MONEND); b_idx++)
our_btbl[b_idx].attr.raw = mon_btbl[b_idx].attr.raw;
/*
* Preserve the monitor's DVMA map for now (1MB).
* Later, we might want to kill this mapping so we
* can have all of the DVMA space (16MB).
*/
for (b_idx = MMU_TIB(MON_DVMA_BASE);
b_idx < MMU_B_TBL_SIZE; b_idx++)
our_btbl[b_idx].attr.raw = mon_btbl[b_idx].attr.raw;
#endif
MachMonRomVector *romp;
int *mon_ctbl;
mmu_short_pte_t *kpte;

63
sys/arch/sun3x/sun3x/pmap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.1.1.1 1997/01/14 20:57:08 gwr Exp $ */
/* $NetBSD: pmap.c,v 1.2 1997/01/14 21:01:33 gwr Exp $ */
/*-
* Copyright (c) 1996 The NetBSD Foundation, Inc.
@ -757,67 +757,6 @@ pmap_alloc_etc()
void
pmap_bootstrap_copyprom()
{
#if 0 /* XXX - Just history... */
/*
* XXX - This method makes DVMA difficult, because
* the PROM only provides PTEs for 1M of DVMA space.
* That's OK for boot programs, but not a VM system.
*/
int a_idx;
mmu_long_dte_t *mon_atbl;
/*
* Copy the last entry (PROM monitor and DVMA mappings)
* so our level-A table will use the PROM level-B table.
*/
mon_atbl = (mmu_long_dte_t *) mon_crp.paddr;
a_idx = MMU_TIA(VM_MAX_KERNEL_ADDRESS);
kernAbase[a_idx].attr.raw = mon_atbl[a_idx].attr.raw;
kernAbase[a_idx].addr.raw = mon_atbl[a_idx].addr.raw;
#endif
#if 0 /* XXX - More history... */
/*
* XXX - This method is OK with our DVMA implementation,
* but causes pmap_extract() to be ignorant of the PROM
* mappings. Maybe that's OK. If not, we should just
* copy the PTEs (level-C) from the PROM. -gwr
*/
mmu_long_dte_t *mon_atbl;
mmu_short_dte_t *mon_btbl;
mmu_short_dte_t *our_btbl;
int a_idx, b_idx;
/*
* Copy parts of the level-B table from the PROM for
* mappings that the PROM cares about.
*/
mon_atbl = (mmu_long_dte_t *) mon_crp.paddr;
a_idx = MMU_TIA(MON_KDB_START);
mon_btbl = (mmu_short_dte_t *) mon_atbl[a_idx].addr.raw;
/* Temporary use of b_idx to find our level-B table. */
b_idx = MMU_B_TBL_SIZE * (a_idx - MMU_TIA(KERNBASE));
our_btbl = &kernBbase[b_idx];
/*
* Preserve both the kadb and monitor mappings (2MB).
* We could have started at MONSTART, but this costs
* us nothing, and might be useful someday...
*/
for (b_idx = MMU_TIB(MON_KDB_START);
b_idx < MMU_TIB(MONEND); b_idx++)
our_btbl[b_idx].attr.raw = mon_btbl[b_idx].attr.raw;
/*
* Preserve the monitor's DVMA map for now (1MB).
* Later, we might want to kill this mapping so we
* can have all of the DVMA space (16MB).
*/
for (b_idx = MMU_TIB(MON_DVMA_BASE);
b_idx < MMU_B_TBL_SIZE; b_idx++)
our_btbl[b_idx].attr.raw = mon_btbl[b_idx].attr.raw;
#endif
MachMonRomVector *romp;
int *mon_ctbl;
mmu_short_pte_t *kpte;