Page Menu
Home
FreeBSD
Search
Configure Global Search
Log In
Files
F107176914
D37254.diff
No One
Temporary
Actions
View File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Flag For Later
Award Token
Size
5 KB
Referenced Files
None
Subscribers
None
D37254.diff
View Options
diff --git a/sys/arm64/arm64/pmap.c b/sys/arm64/arm64/pmap.c
--- a/sys/arm64/arm64/pmap.c
+++ b/sys/arm64/arm64/pmap.c
@@ -402,6 +402,8 @@
void (*pmap_clean_stage2_tlbi)(void);
void (*pmap_invalidate_vpipt_icache)(void);
+void (*pmap_stage2_invalidate_range)(uint64_t, vm_offset_t, vm_offset_t, bool);
+void (*pmap_stage2_invalidate_all)(uint64_t);
/*
* A pmap's cookie encodes an ASID and epoch number. Cookies for reserved
@@ -1549,6 +1551,24 @@
isb();
}
+static __inline void
+pmap_s2_invalidate_page(pmap_t pmap, vm_offset_t va, bool final_only)
+{
+ PMAP_ASSERT_STAGE2(pmap);
+ MPASS(pmap_stage2_invalidate_range != NULL);
+ pmap_stage2_invalidate_range(pmap_to_ttbr0(pmap), va, va + PAGE_SIZE,
+ final_only);
+}
+
+static __inline void
+pmap_invalidate_page(pmap_t pmap, vm_offset_t va, bool final_only)
+{
+ if (pmap->pm_stage == PM_STAGE1)
+ pmap_s1_invalidate_page(pmap, va, final_only);
+ else
+ pmap_s2_invalidate_page(pmap, va, final_only);
+}
+
/*
* Invalidates any cached final- and optionally intermediate-level TLB entries
* for the specified virtual address range in the given virtual address space.
@@ -1578,6 +1598,25 @@
isb();
}
+static __inline void
+pmap_s2_invalidate_range(pmap_t pmap, vm_offset_t sva, vm_offset_t eva,
+ bool final_only)
+{
+ PMAP_ASSERT_STAGE2(pmap);
+ MPASS(pmap_stage2_invalidate_range != NULL);
+ pmap_stage2_invalidate_range(pmap_to_ttbr0(pmap), sva, eva, final_only);
+}
+
+static __inline void
+pmap_invalidate_range(pmap_t pmap, vm_offset_t sva, vm_offset_t eva,
+ bool final_only)
+{
+ if (pmap->pm_stage == PM_STAGE1)
+ pmap_s1_invalidate_range(pmap, sva, eva, final_only);
+ else
+ pmap_s2_invalidate_range(pmap, sva, eva, final_only);
+}
+
/*
* Invalidates all cached intermediate- and final-level TLB entries for the
* given virtual address space.
@@ -1600,6 +1639,23 @@
isb();
}
+static __inline void
+pmap_s2_invalidate_all(pmap_t pmap)
+{
+ PMAP_ASSERT_STAGE2(pmap);
+ MPASS(pmap_stage2_invalidate_all != NULL);
+ pmap_stage2_invalidate_all(pmap_to_ttbr0(pmap));
+}
+
+static __inline void
+pmap_invalidate_all(pmap_t pmap)
+{
+ if (pmap->pm_stage == PM_STAGE1)
+ pmap_s1_invalidate_all(pmap);
+ else
+ pmap_s2_invalidate_all(pmap);
+}
+
/*
* Routine: pmap_extract
* Function:
@@ -2046,7 +2102,7 @@
l1pg = PHYS_TO_VM_PAGE(tl0 & ~ATTR_MASK);
pmap_unwire_l3(pmap, va, l1pg, free);
}
- pmap_s1_invalidate_page(pmap, va, false);
+ pmap_invalidate_page(pmap, va, false);
/*
* Put page on a list so that it is released after
@@ -3347,7 +3403,7 @@
for (l3 = pmap_l2_to_l3(&l2e, sva); sva != eva; l3++, sva += L3_SIZE) {
if (!pmap_l3_valid(pmap_load(l3))) {
if (va != eva) {
- pmap_s1_invalidate_range(pmap, va, sva, true);
+ pmap_invalidate_range(pmap, va, sva, true);
va = eva;
}
continue;
@@ -3374,7 +3430,7 @@
* still provides access to that page.
*/
if (va != eva) {
- pmap_s1_invalidate_range(pmap, va,
+ pmap_invalidate_range(pmap, va,
sva, true);
va = eva;
}
@@ -3405,7 +3461,7 @@
va = sva;
}
if (va != eva)
- pmap_s1_invalidate_range(pmap, va, sva, true);
+ pmap_invalidate_range(pmap, va, sva, true);
}
/*
@@ -4311,12 +4367,6 @@
* Is the specified virtual address already mapped?
*/
if (pmap_l3_valid(orig_l3)) {
- /*
- * Only allow adding new entries on stage 2 tables for now.
- * This simplifies cache invalidation as we may need to call
- * into EL2 to perform such actions.
- */
- PMAP_ASSERT_STAGE1(pmap);
/*
* Wiring change, just update stats. We don't worry about
* wiring PT pages as they remain resident as long as there
@@ -4371,7 +4421,7 @@
if (pmap_pte_dirty(pmap, orig_l3))
vm_page_dirty(om);
if ((orig_l3 & ATTR_AF) != 0) {
- pmap_s1_invalidate_page(pmap, va, true);
+ pmap_invalidate_page(pmap, va, true);
vm_page_aflag_set(om, PGA_REFERENCED);
}
CHANGE_PV_LIST_LOCK_TO_PHYS(&lock, opa);
@@ -4386,7 +4436,7 @@
} else {
KASSERT((orig_l3 & ATTR_AF) != 0,
("pmap_enter: unmanaged mapping lacks ATTR_AF"));
- pmap_s1_invalidate_page(pmap, va, true);
+ pmap_invalidate_page(pmap, va, true);
}
orig_l3 = 0;
} else {
@@ -4439,12 +4489,11 @@
* Update the L3 entry
*/
if (pmap_l3_valid(orig_l3)) {
- PMAP_ASSERT_STAGE1(pmap);
KASSERT(opa == pa, ("pmap_enter: invalid update"));
if ((orig_l3 & ~ATTR_AF) != (new_l3 & ~ATTR_AF)) {
/* same PA, different attributes */
orig_l3 = pmap_load_store(l3, new_l3);
- pmap_s1_invalidate_page(pmap, va, true);
+ pmap_invalidate_page(pmap, va, true);
if ((orig_l3 & ATTR_SW_MANAGED) != 0 &&
pmap_pte_dirty(pmap, orig_l3))
vm_page_dirty(m);
@@ -5588,7 +5637,7 @@
}
if (lock != NULL)
rw_wunlock(lock);
- pmap_s1_invalidate_all(pmap);
+ pmap_invalidate_all(pmap);
free_pv_chunk_batch(free_chunks);
PMAP_UNLOCK(pmap);
vm_page_free_pages_toq(&free, true);
@@ -5913,7 +5962,7 @@
(uintptr_t)pmap) & (Ln_ENTRIES - 1)) == 0 &&
(tpte & ATTR_SW_WIRED) == 0) {
pmap_clear_bits(pte, ATTR_AF);
- pmap_s1_invalidate_page(pmap, va, true);
+ pmap_invalidate_page(pmap, va, true);
cleared++;
} else
not_cleared++;
@@ -5954,7 +6003,7 @@
if ((tpte & ATTR_AF) != 0) {
if ((tpte & ATTR_SW_WIRED) == 0) {
pmap_clear_bits(pte, ATTR_AF);
- pmap_s1_invalidate_page(pmap, pv->pv_va, true);
+ pmap_invalidate_page(pmap, pv->pv_va, true);
cleared++;
} else
not_cleared++;
diff --git a/sys/arm64/include/pmap.h b/sys/arm64/include/pmap.h
--- a/sys/arm64/include/pmap.h
+++ b/sys/arm64/include/pmap.h
@@ -172,6 +172,9 @@
extern void (*pmap_clean_stage2_tlbi)(void);
extern void (*pmap_invalidate_vpipt_icache)(void);
+extern void (*pmap_stage2_invalidate_range)(uint64_t, vm_offset_t, vm_offset_t,
+ bool);
+extern void (*pmap_stage2_invalidate_all)(uint64_t);
static inline int
pmap_vmspace_copy(pmap_t dst_pmap __unused, pmap_t src_pmap __unused)
File Metadata
Details
Attached
Mime Type
text/plain
Expires
Sun, Jan 12, 7:05 AM (21 h, 9 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
15757091
Default Alt Text
D37254.diff (5 KB)
Attached To
Mode
D37254: Support arm64 stage2 TLB invalidation
Attached
Detach File
Event Timeline
Log In to Comment