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Diffstat (limited to 'arch/powerpc/mm/hash_native_64.c')
-rw-r--r--arch/powerpc/mm/hash_native_64.c92
1 files changed, 46 insertions, 46 deletions
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index 6ba9b47e55af..34e5c0b219b9 100644
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -38,7 +38,7 @@
static DEFINE_SPINLOCK(native_tlbie_lock);
-static inline void __tlbie(unsigned long va, unsigned int psize)
+static inline void __tlbie(unsigned long va, int psize, int ssize)
{
unsigned int penc;
@@ -48,18 +48,20 @@ static inline void __tlbie(unsigned long va, unsigned int psize)
switch (psize) {
case MMU_PAGE_4K:
va &= ~0xffful;
+ va |= ssize << 8;
asm volatile("tlbie %0,0" : : "r" (va) : "memory");
break;
default:
penc = mmu_psize_defs[psize].penc;
va &= ~((1ul << mmu_psize_defs[psize].shift) - 1);
va |= penc << 12;
+ va |= ssize << 8;
asm volatile("tlbie %0,1" : : "r" (va) : "memory");
break;
}
}
-static inline void __tlbiel(unsigned long va, unsigned int psize)
+static inline void __tlbiel(unsigned long va, int psize, int ssize)
{
unsigned int penc;
@@ -69,6 +71,7 @@ static inline void __tlbiel(unsigned long va, unsigned int psize)
switch (psize) {
case MMU_PAGE_4K:
va &= ~0xffful;
+ va |= ssize << 8;
asm volatile(".long 0x7c000224 | (%0 << 11) | (0 << 21)"
: : "r"(va) : "memory");
break;
@@ -76,6 +79,7 @@ static inline void __tlbiel(unsigned long va, unsigned int psize)
penc = mmu_psize_defs[psize].penc;
va &= ~((1ul << mmu_psize_defs[psize].shift) - 1);
va |= penc << 12;
+ va |= ssize << 8;
asm volatile(".long 0x7c000224 | (%0 << 11) | (1 << 21)"
: : "r"(va) : "memory");
break;
@@ -83,7 +87,7 @@ static inline void __tlbiel(unsigned long va, unsigned int psize)
}
-static inline void tlbie(unsigned long va, int psize, int local)
+static inline void tlbie(unsigned long va, int psize, int ssize, int local)
{
unsigned int use_local = local && cpu_has_feature(CPU_FTR_TLBIEL);
int lock_tlbie = !cpu_has_feature(CPU_FTR_LOCKLESS_TLBIE);
@@ -94,10 +98,10 @@ static inline void tlbie(unsigned long va, int psize, int local)
spin_lock(&native_tlbie_lock);
asm volatile("ptesync": : :"memory");
if (use_local) {
- __tlbiel(va, psize);
+ __tlbiel(va, psize, ssize);
asm volatile("ptesync": : :"memory");
} else {
- __tlbie(va, psize);
+ __tlbie(va, psize, ssize);
asm volatile("eieio; tlbsync; ptesync": : :"memory");
}
if (lock_tlbie && !use_local)
@@ -126,7 +130,7 @@ static inline void native_unlock_hpte(struct hash_pte *hptep)
static long native_hpte_insert(unsigned long hpte_group, unsigned long va,
unsigned long pa, unsigned long rflags,
- unsigned long vflags, int psize)
+ unsigned long vflags, int psize, int ssize)
{
struct hash_pte *hptep = htab_address + hpte_group;
unsigned long hpte_v, hpte_r;
@@ -153,7 +157,7 @@ static long native_hpte_insert(unsigned long hpte_group, unsigned long va,
if (i == HPTES_PER_GROUP)
return -1;
- hpte_v = hpte_encode_v(va, psize) | vflags | HPTE_V_VALID;
+ hpte_v = hpte_encode_v(va, psize, ssize) | vflags | HPTE_V_VALID;
hpte_r = hpte_encode_r(pa, psize) | rflags;
if (!(vflags & HPTE_V_BOLTED)) {
@@ -215,13 +219,14 @@ static long native_hpte_remove(unsigned long hpte_group)
}
static long native_hpte_updatepp(unsigned long slot, unsigned long newpp,
- unsigned long va, int psize, int local)
+ unsigned long va, int psize, int ssize,
+ int local)
{
struct hash_pte *hptep = htab_address + slot;
unsigned long hpte_v, want_v;
int ret = 0;
- want_v = hpte_encode_v(va, psize);
+ want_v = hpte_encode_v(va, psize, ssize);
DBG_LOW(" update(va=%016lx, avpnv=%016lx, hash=%016lx, newpp=%x)",
va, want_v & HPTE_V_AVPN, slot, newpp);
@@ -243,39 +248,32 @@ static long native_hpte_updatepp(unsigned long slot, unsigned long newpp,
native_unlock_hpte(hptep);
/* Ensure it is out of the tlb too. */
- tlbie(va, psize, local);
+ tlbie(va, psize, ssize, local);
return ret;
}
-static long native_hpte_find(unsigned long va, int psize)
+static long native_hpte_find(unsigned long va, int psize, int ssize)
{
struct hash_pte *hptep;
unsigned long hash;
- unsigned long i, j;
+ unsigned long i;
long slot;
unsigned long want_v, hpte_v;
- hash = hpt_hash(va, mmu_psize_defs[psize].shift);
- want_v = hpte_encode_v(va, psize);
+ hash = hpt_hash(va, mmu_psize_defs[psize].shift, ssize);
+ want_v = hpte_encode_v(va, psize, ssize);
- for (j = 0; j < 2; j++) {
- slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
- for (i = 0; i < HPTES_PER_GROUP; i++) {
- hptep = htab_address + slot;
- hpte_v = hptep->v;
+ /* Bolted mappings are only ever in the primary group */
+ slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
+ for (i = 0; i < HPTES_PER_GROUP; i++) {
+ hptep = htab_address + slot;
+ hpte_v = hptep->v;
- if (HPTE_V_COMPARE(hpte_v, want_v)
- && (hpte_v & HPTE_V_VALID)
- && ( !!(hpte_v & HPTE_V_SECONDARY) == j)) {
- /* HPTE matches */
- if (j)
- slot = -slot;
- return slot;
- }
- ++slot;
- }
- hash = ~hash;
+ if (HPTE_V_COMPARE(hpte_v, want_v) && (hpte_v & HPTE_V_VALID))
+ /* HPTE matches */
+ return slot;
+ ++slot;
}
return -1;
@@ -289,16 +287,16 @@ static long native_hpte_find(unsigned long va, int psize)
* No need to lock here because we should be the only user.
*/
static void native_hpte_updateboltedpp(unsigned long newpp, unsigned long ea,
- int psize)
+ int psize, int ssize)
{
unsigned long vsid, va;
long slot;
struct hash_pte *hptep;
- vsid = get_kernel_vsid(ea);
- va = (vsid << 28) | (ea & 0x0fffffff);
+ vsid = get_kernel_vsid(ea, ssize);
+ va = hpt_va(ea, vsid, ssize);
- slot = native_hpte_find(va, psize);
+ slot = native_hpte_find(va, psize, ssize);
if (slot == -1)
panic("could not find page to bolt\n");
hptep = htab_address + slot;
@@ -308,11 +306,11 @@ static void native_hpte_updateboltedpp(unsigned long newpp, unsigned long ea,
(newpp & (HPTE_R_PP | HPTE_R_N));
/* Ensure it is out of the tlb too. */
- tlbie(va, psize, 0);
+ tlbie(va, psize, ssize, 0);
}
static void native_hpte_invalidate(unsigned long slot, unsigned long va,
- int psize, int local)
+ int psize, int ssize, int local)
{
struct hash_pte *hptep = htab_address + slot;
unsigned long hpte_v;
@@ -323,7 +321,7 @@ static void native_hpte_invalidate(unsigned long slot, unsigned long va,
DBG_LOW(" invalidate(va=%016lx, hash: %x)\n", va, slot);
- want_v = hpte_encode_v(va, psize);
+ want_v = hpte_encode_v(va, psize, ssize);
native_lock_hpte(hptep);
hpte_v = hptep->v;
@@ -335,7 +333,7 @@ static void native_hpte_invalidate(unsigned long slot, unsigned long va,
hptep->v = 0;
/* Invalidate the TLB */
- tlbie(va, psize, local);
+ tlbie(va, psize, ssize, local);
local_irq_restore(flags);
}
@@ -345,7 +343,7 @@ static void native_hpte_invalidate(unsigned long slot, unsigned long va,
#define LP_MASK(i) ((0xFF >> (i)) << LP_SHIFT)
static void hpte_decode(struct hash_pte *hpte, unsigned long slot,
- int *psize, unsigned long *va)
+ int *psize, int *ssize, unsigned long *va)
{
unsigned long hpte_r = hpte->r;
unsigned long hpte_v = hpte->v;
@@ -401,6 +399,7 @@ static void hpte_decode(struct hash_pte *hpte, unsigned long slot,
*va = avpn;
*psize = size;
+ *ssize = hpte_v >> HPTE_V_SSIZE_SHIFT;
}
/*
@@ -417,7 +416,7 @@ static void native_hpte_clear(void)
struct hash_pte *hptep = htab_address;
unsigned long hpte_v, va;
unsigned long pteg_count;
- int psize;
+ int psize, ssize;
pteg_count = htab_hash_mask + 1;
@@ -443,9 +442,9 @@ static void native_hpte_clear(void)
* already hold the native_tlbie_lock.
*/
if (hpte_v & HPTE_V_VALID) {
- hpte_decode(hptep, slot, &psize, &va);
+ hpte_decode(hptep, slot, &psize, &ssize, &va);
hptep->v = 0;
- __tlbie(va, psize);
+ __tlbie(va, psize, ssize);
}
}
@@ -468,6 +467,7 @@ static void native_flush_hash_range(unsigned long number, int local)
real_pte_t pte;
struct ppc64_tlb_batch *batch = &__get_cpu_var(ppc64_tlb_batch);
unsigned long psize = batch->psize;
+ int ssize = batch->ssize;
int i;
local_irq_save(flags);
@@ -477,14 +477,14 @@ static void native_flush_hash_range(unsigned long number, int local)
pte = batch->pte[i];
pte_iterate_hashed_subpages(pte, psize, va, index, shift) {
- hash = hpt_hash(va, shift);
+ hash = hpt_hash(va, shift, ssize);
hidx = __rpte_to_hidx(pte, index);
if (hidx & _PTEIDX_SECONDARY)
hash = ~hash;
slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
slot += hidx & _PTEIDX_GROUP_IX;
hptep = htab_address + slot;
- want_v = hpte_encode_v(va, psize);
+ want_v = hpte_encode_v(va, psize, ssize);
native_lock_hpte(hptep);
hpte_v = hptep->v;
if (!HPTE_V_COMPARE(hpte_v, want_v) ||
@@ -504,7 +504,7 @@ static void native_flush_hash_range(unsigned long number, int local)
pte_iterate_hashed_subpages(pte, psize, va, index,
shift) {
- __tlbiel(va, psize);
+ __tlbiel(va, psize, ssize);
} pte_iterate_hashed_end();
}
asm volatile("ptesync":::"memory");
@@ -521,7 +521,7 @@ static void native_flush_hash_range(unsigned long number, int local)
pte_iterate_hashed_subpages(pte, psize, va, index,
shift) {
- __tlbie(va, psize);
+ __tlbie(va, psize, ssize);
} pte_iterate_hashed_end();
}
asm volatile("eieio; tlbsync; ptesync":::"memory");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 08:07:30 +0000