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Diffstat (limited to 'arch/powerpc/platforms/iseries/htab.c')
-rw-r--r--arch/powerpc/platforms/iseries/htab.c65
1 files changed, 31 insertions, 34 deletions
diff --git a/arch/powerpc/platforms/iseries/htab.c b/arch/powerpc/platforms/iseries/htab.c
index b3c6c3374ca6..30bdcf3925d9 100644
--- a/arch/powerpc/platforms/iseries/htab.c
+++ b/arch/powerpc/platforms/iseries/htab.c
@@ -39,15 +39,16 @@ static inline void iSeries_hunlock(unsigned long slot)
spin_unlock(&iSeries_hlocks[(slot >> 4) & 0x3f]);
}
-static long iSeries_hpte_insert(unsigned long hpte_group, unsigned long va,
- unsigned long prpn, unsigned long vflags,
- unsigned long rflags)
+long iSeries_hpte_insert(unsigned long hpte_group, unsigned long va,
+ unsigned long pa, unsigned long rflags,
+ unsigned long vflags, int psize)
{
- unsigned long arpn;
long slot;
hpte_t lhpte;
int secondary = 0;
+ BUG_ON(psize != MMU_PAGE_4K);
+
/*
* The hypervisor tries both primary and secondary.
* If we are being called to insert in the secondary,
@@ -59,8 +60,19 @@ static long iSeries_hpte_insert(unsigned long hpte_group, unsigned long va,
iSeries_hlock(hpte_group);
- slot = HvCallHpt_findValid(&lhpte, va >> PAGE_SHIFT);
- BUG_ON(lhpte.v & HPTE_V_VALID);
+ slot = HvCallHpt_findValid(&lhpte, va >> HW_PAGE_SHIFT);
+ if (unlikely(lhpte.v & HPTE_V_VALID)) {
+ if (vflags & HPTE_V_BOLTED) {
+ HvCallHpt_setSwBits(slot, 0x10, 0);
+ HvCallHpt_setPp(slot, PP_RWXX);
+ iSeries_hunlock(hpte_group);
+ if (slot < 0)
+ return 0x8 | (slot & 7);
+ else
+ return slot & 7;
+ }
+ BUG();
+ }
if (slot == -1) { /* No available entry found in either group */
iSeries_hunlock(hpte_group);
@@ -73,10 +85,9 @@ static long iSeries_hpte_insert(unsigned long hpte_group, unsigned long va,
slot &= 0x7fffffffffffffff;
}
- arpn = phys_to_abs(prpn << PAGE_SHIFT) >> PAGE_SHIFT;
- lhpte.v = (va >> 23) << HPTE_V_AVPN_SHIFT | vflags | HPTE_V_VALID;
- lhpte.r = (arpn << HPTE_R_RPN_SHIFT) | rflags;
+ lhpte.v = hpte_encode_v(va, MMU_PAGE_4K) | vflags | HPTE_V_VALID;
+ lhpte.r = hpte_encode_r(phys_to_abs(pa), MMU_PAGE_4K) | rflags;
/* Now fill in the actual HPTE */
HvCallHpt_addValidate(slot, secondary, &lhpte);
@@ -86,25 +97,6 @@ static long iSeries_hpte_insert(unsigned long hpte_group, unsigned long va,
return (secondary << 3) | (slot & 7);
}
-long iSeries_hpte_bolt_or_insert(unsigned long hpte_group,
- unsigned long va, unsigned long prpn, unsigned long vflags,
- unsigned long rflags)
-{
- long slot;
- hpte_t lhpte;
-
- slot = HvCallHpt_findValid(&lhpte, va >> PAGE_SHIFT);
-
- if (lhpte.v & HPTE_V_VALID) {
- /* Bolt the existing HPTE */
- HvCallHpt_setSwBits(slot, 0x10, 0);
- HvCallHpt_setPp(slot, PP_RWXX);
- return 0;
- }
-
- return iSeries_hpte_insert(hpte_group, va, prpn, vflags, rflags);
-}
-
static unsigned long iSeries_hpte_getword0(unsigned long slot)
{
hpte_t hpte;
@@ -150,15 +142,17 @@ static long iSeries_hpte_remove(unsigned long hpte_group)
* bits 61..63 : PP2,PP1,PP0
*/
static long iSeries_hpte_updatepp(unsigned long slot, unsigned long newpp,
- unsigned long va, int large, int local)
+ unsigned long va, int psize, int local)
{
hpte_t hpte;
- unsigned long avpn = va >> 23;
+ unsigned long want_v;
iSeries_hlock(slot);
HvCallHpt_get(&hpte, slot);
- if ((HPTE_V_AVPN_VAL(hpte.v) == avpn) && (hpte.v & HPTE_V_VALID)) {
+ want_v = hpte_encode_v(va, MMU_PAGE_4K);
+
+ if (HPTE_V_COMPARE(hpte.v, want_v) && (hpte.v & HPTE_V_VALID)) {
/*
* Hypervisor expects bits as NPPP, which is
* different from how they are mapped in our PP.
@@ -210,14 +204,17 @@ static long iSeries_hpte_find(unsigned long vpn)
*
* No need to lock here because we should be the only user.
*/
-static void iSeries_hpte_updateboltedpp(unsigned long newpp, unsigned long ea)
+static void iSeries_hpte_updateboltedpp(unsigned long newpp, unsigned long ea,
+ int psize)
{
unsigned long vsid,va,vpn;
long slot;
+ BUG_ON(psize != MMU_PAGE_4K);
+
vsid = get_kernel_vsid(ea);
va = (vsid << 28) | (ea & 0x0fffffff);
- vpn = va >> PAGE_SHIFT;
+ vpn = va >> HW_PAGE_SHIFT;
slot = iSeries_hpte_find(vpn);
if (slot == -1)
panic("updateboltedpp: Could not find page to bolt\n");
@@ -225,7 +222,7 @@ static void iSeries_hpte_updateboltedpp(unsigned long newpp, unsigned long ea)
}
static void iSeries_hpte_invalidate(unsigned long slot, unsigned long va,
- int large, int local)
+ int psize, int local)
{
unsigned long hpte_v;
unsigned long avpn = va >> 23;