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authorThiemo Seufer <ths@networkno.de>2005-04-28 08:52:57 +0000
committerRalf Baechle <ralf@linux-mips.org>2005-10-29 19:31:11 +0100
commit63b2d2f4d2073ac3452ce977d27cc81eabaa61a3 (patch)
tree821eed26f6eef86263073e01217623bc9f25e44b /arch
parentba5187dbb4b2eac99d6fa1d6bbece67e0066bf51 (diff)
Handle _PAGE_DIRTY correctly for CONFIG_64BIT_PHYS_ADDR on 32bit CPUs.
Signed-off-by: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/mm/tlbex.c52
1 files changed, 29 insertions, 23 deletions
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 018f7527a72..cdd02d93a15 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -1271,37 +1271,41 @@ u32 __tlb_handler_align handle_tlbs[FASTPATH_SIZE];
u32 __tlb_handler_align handle_tlbm[FASTPATH_SIZE];
static void __init
-iPTE_LW(u32 **p, struct label **l, unsigned int pte, int offset,
- unsigned int ptr)
+iPTE_LW(u32 **p, struct label **l, unsigned int pte, unsigned int ptr)
{
#ifdef CONFIG_SMP
# ifdef CONFIG_64BIT_PHYS_ADDR
if (cpu_has_64bits)
- i_lld(p, pte, offset, ptr);
+ i_lld(p, pte, 0, ptr);
else
# endif
- i_LL(p, pte, offset, ptr);
+ i_LL(p, pte, 0, ptr);
#else
# ifdef CONFIG_64BIT_PHYS_ADDR
if (cpu_has_64bits)
- i_ld(p, pte, offset, ptr);
+ i_ld(p, pte, 0, ptr);
else
# endif
- i_LW(p, pte, offset, ptr);
+ i_LW(p, pte, 0, ptr);
#endif
}
static void __init
-iPTE_SW(u32 **p, struct reloc **r, unsigned int pte, int offset,
- unsigned int ptr)
+iPTE_SW(u32 **p, struct reloc **r, unsigned int pte, unsigned int ptr,
+ unsigned int mode)
{
+#ifdef CONFIG_64BIT_PHYS_ADDR
+ unsigned int hwmode = mode & (_PAGE_VALID | _PAGE_DIRTY);
+#endif
+
+ i_ori(p, pte, pte, mode);
#ifdef CONFIG_SMP
# ifdef CONFIG_64BIT_PHYS_ADDR
if (cpu_has_64bits)
- i_scd(p, pte, offset, ptr);
+ i_scd(p, pte, 0, ptr);
else
# endif
- i_SC(p, pte, offset, ptr);
+ i_SC(p, pte, 0, ptr);
if (r10000_llsc_war())
il_beqzl(p, r, pte, label_smp_pgtable_change);
@@ -1312,7 +1316,7 @@ iPTE_SW(u32 **p, struct reloc **r, unsigned int pte, int offset,
if (!cpu_has_64bits) {
/* no i_nop needed */
i_ll(p, pte, sizeof(pte_t) / 2, ptr);
- i_ori(p, pte, pte, _PAGE_VALID);
+ i_ori(p, pte, pte, hwmode);
i_sc(p, pte, sizeof(pte_t) / 2, ptr);
il_beqz(p, r, pte, label_smp_pgtable_change);
/* no i_nop needed */
@@ -1325,15 +1329,15 @@ iPTE_SW(u32 **p, struct reloc **r, unsigned int pte, int offset,
#else
# ifdef CONFIG_64BIT_PHYS_ADDR
if (cpu_has_64bits)
- i_sd(p, pte, offset, ptr);
+ i_sd(p, pte, 0, ptr);
else
# endif
- i_SW(p, pte, offset, ptr);
+ i_SW(p, pte, 0, ptr);
# ifdef CONFIG_64BIT_PHYS_ADDR
if (!cpu_has_64bits) {
i_lw(p, pte, sizeof(pte_t) / 2, ptr);
- i_ori(p, pte, pte, _PAGE_VALID);
+ i_ori(p, pte, pte, hwmode);
i_sw(p, pte, sizeof(pte_t) / 2, ptr);
i_lw(p, pte, 0, ptr);
}
@@ -1353,7 +1357,7 @@ build_pte_present(u32 **p, struct label **l, struct reloc **r,
i_andi(p, pte, pte, _PAGE_PRESENT | _PAGE_READ);
i_xori(p, pte, pte, _PAGE_PRESENT | _PAGE_READ);
il_bnez(p, r, pte, lid);
- iPTE_LW(p, l, pte, 0, ptr);
+ iPTE_LW(p, l, pte, ptr);
}
/* Make PTE valid, store result in PTR. */
@@ -1361,8 +1365,9 @@ static void __init
build_make_valid(u32 **p, struct reloc **r, unsigned int pte,
unsigned int ptr)
{
- i_ori(p, pte, pte, _PAGE_VALID | _PAGE_ACCESSED);
- iPTE_SW(p, r, pte, 0, ptr);
+ unsigned int mode = _PAGE_VALID | _PAGE_ACCESSED;
+
+ iPTE_SW(p, r, pte, ptr, mode);
}
/*
@@ -1376,7 +1381,7 @@ build_pte_writable(u32 **p, struct label **l, struct reloc **r,
i_andi(p, pte, pte, _PAGE_PRESENT | _PAGE_WRITE);
i_xori(p, pte, pte, _PAGE_PRESENT | _PAGE_WRITE);
il_bnez(p, r, pte, lid);
- iPTE_LW(p, l, pte, 0, ptr);
+ iPTE_LW(p, l, pte, ptr);
}
/* Make PTE writable, update software status bits as well, then store
@@ -1386,9 +1391,10 @@ static void __init
build_make_write(u32 **p, struct reloc **r, unsigned int pte,
unsigned int ptr)
{
- i_ori(p, pte, pte,
- _PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_VALID | _PAGE_DIRTY);
- iPTE_SW(p, r, pte, 0, ptr);
+ unsigned int mode = (_PAGE_ACCESSED | _PAGE_MODIFIED | _PAGE_VALID
+ | _PAGE_DIRTY);
+
+ iPTE_SW(p, r, pte, ptr, mode);
}
/*
@@ -1401,7 +1407,7 @@ build_pte_modifiable(u32 **p, struct label **l, struct reloc **r,
{
i_andi(p, pte, pte, _PAGE_WRITE);
il_beqz(p, r, pte, lid);
- iPTE_LW(p, l, pte, 0, ptr);
+ iPTE_LW(p, l, pte, ptr);
}
/*
@@ -1614,7 +1620,7 @@ build_r4000_tlbchange_handler_head(u32 **p, struct label **l,
#ifdef CONFIG_SMP
l_smp_pgtable_change(l, *p);
# endif
- iPTE_LW(p, l, pte, 0, ptr); /* get even pte */
+ iPTE_LW(p, l, pte, ptr); /* get even pte */
build_tlb_probe_entry(p);
}