For persistent (vm_bind) vmas of userptr BOs, handle the user
page pinning by using the i915_gem_object_userptr_submit_init()
/done() functions
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@xxxxxxxxx>
---
.../gpu/drm/i915/gem/i915_gem_execbuffer3.c | 67 +++++++++++++++++++
.../drm/i915/gem/i915_gem_vm_bind_object.c | 16 +++++
drivers/gpu/drm/i915/gt/intel_gtt.c | 1 +
drivers/gpu/drm/i915/gt/intel_gtt.h | 1 +
4 files changed, 85 insertions(+)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer3.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer3.c
index 2079f5ca9010..bf13dd6d642e 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer3.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer3.c
@@ -22,6 +22,7 @@
#include "i915_gem_vm_bind.h"
#include "i915_trace.h"
+#define __EXEC3_USERPTR_USED BIT_ULL(34)
#define __EXEC3_HAS_PIN BIT_ULL(33)
#define __EXEC3_ENGINE_PINNED BIT_ULL(32)
#define __EXEC3_INTERNAL_FLAGS (~0ull << 32)
@@ -147,10 +148,36 @@ static void eb_scoop_unbound_vmas(struct i915_address_space *vm)
spin_unlock(&vm->vm_rebind_lock);
}
+static int eb_lookup_persistent_userptr_vmas(struct i915_execbuffer *eb)
+{
+ struct i915_address_space *vm = eb->context->vm;
+ struct i915_vma *last_vma = NULL;
+ struct i915_vma *vma;
+ int err;
+
+ assert_vm_bind_held(vm);
+
+ list_for_each_entry(vma, &vm->vm_bind_list, vm_bind_link) {
+ if (i915_gem_object_is_userptr(vma->obj)) {
+ err = i915_gem_object_userptr_submit_init(vma->obj);
+ if (err)
+ return err;
+
+ last_vma = vma;
+ }
+ }
+
+ if (last_vma)
+ eb->args->flags |= __EXEC3_USERPTR_USED;
+
+ return 0;
+}
+
static int eb_lookup_vmas(struct i915_execbuffer *eb)
{
unsigned int i, current_batch = 0;
struct i915_vma *vma;
+ int err = 0;
for (i = 0; i < eb->num_batches; i++) {
vma = eb_find_vma(eb->context->vm, eb->batch_addresses[i]);
@@ -163,6 +190,10 @@ static int eb_lookup_vmas(struct i915_execbuffer *eb)
eb_scoop_unbound_vmas(eb->context->vm);
+ err = eb_lookup_persistent_userptr_vmas(eb);
+ if (err)
+ return err;
+
return 0;
}
@@ -358,15 +389,51 @@ static void eb_persistent_vmas_move_to_active(struct i915_execbuffer *eb)
static int eb_move_to_gpu(struct i915_execbuffer *eb)
{
+ int err = 0, j;
+
assert_vm_bind_held(eb->context->vm);
assert_vm_priv_held(eb->context->vm);
eb_persistent_vmas_move_to_active(eb);
+#ifdef CONFIG_MMU_NOTIFIER
+ if (!err && (eb->args->flags & __EXEC3_USERPTR_USED)) {
+ struct i915_vma *vma;
+
+ assert_vm_bind_held(eb->context->vm);
+ assert_vm_priv_held(eb->context->vm);
+
+ read_lock(&eb->i915->mm.notifier_lock);
+ list_for_each_entry(vma, &eb->context->vm->vm_bind_list,
+ vm_bind_link) {
+ if (!i915_gem_object_is_userptr(vma->obj))
+ continue;
+
+ err = i915_gem_object_userptr_submit_done(vma->obj);
+ if (err)
+ break;
+ }
+
+ read_unlock(&eb->i915->mm.notifier_lock);
+ }
+#endif
+
+ if (unlikely(err))
+ goto err_skip;
+
/* Unconditionally flush any chipset caches (for streaming writes). */
intel_gt_chipset_flush(eb->gt);
return 0;
+
+err_skip:
+ for_each_batch_create_order(eb, j) {
+ if (!eb->requests[j])
+ break;
+
+ i915_request_set_error_once(eb->requests[j], err);
+ }
+ return err;
}
static int eb_request_submit(struct i915_execbuffer *eb,
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_vm_bind_object.c b/drivers/gpu/drm/i915/gem/i915_gem_vm_bind_object.c
index 1a8efa83547f..cae282b91618 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_vm_bind_object.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_vm_bind_object.c
@@ -263,6 +263,12 @@ int i915_gem_vm_bind_obj(struct i915_address_space *vm,
goto put_obj;
}
+ if (i915_gem_object_is_userptr(obj)) {
+ ret = i915_gem_object_userptr_submit_init(obj);
+ if (ret)
+ goto put_obj;
+ }
+
ret = i915_gem_vm_bind_lock_interruptible(vm);
if (ret)
goto put_obj;
@@ -295,6 +301,16 @@ int i915_gem_vm_bind_obj(struct i915_address_space *vm,
/* Make it evictable */
__i915_vma_unpin(vma);
+#ifdef CONFIG_MMU_NOTIFIER
+ if (i915_gem_object_is_userptr(obj)) {
+ write_lock(&vm->i915->mm.notifier_lock);
+ ret = i915_gem_object_userptr_submit_done(obj);
+ write_unlock(&vm->i915->mm.notifier_lock);
+ if (ret)
+ goto out_ww;
+ }
+#endif
+
list_add_tail(&vma->vm_bind_link, &vm->vm_bound_list);
i915_vm_bind_it_insert(vma, &vm->va);
if (!obj->priv_root)
diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.c b/drivers/gpu/drm/i915/gt/intel_gtt.c
index 55d5389b2c6c..4ab3bda644ff 100644
--- a/drivers/gpu/drm/i915/gt/intel_gtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gtt.c
@@ -295,6 +295,7 @@ void i915_address_space_init(struct i915_address_space *vm, int subclass)
GEM_BUG_ON(IS_ERR(vm->root_obj));
INIT_LIST_HEAD(&vm->vm_rebind_list);
spin_lock_init(&vm->vm_rebind_lock);
+ INIT_LIST_HEAD(&vm->invalidate_link);
}
void *__px_vaddr(struct drm_i915_gem_object *p)
diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.h b/drivers/gpu/drm/i915/gt/intel_gtt.h
index fe5485c4a1cd..f9edf11c144f 100644
--- a/drivers/gpu/drm/i915/gt/intel_gtt.h
+++ b/drivers/gpu/drm/i915/gt/intel_gtt.h
@@ -267,6 +267,7 @@ struct i915_address_space {
struct list_head vm_bound_list;
struct list_head vm_rebind_list;
spinlock_t vm_rebind_lock; /* Protects vm_rebind_list */
+ struct list_head invalidate_link;
/* va tree of persistent vmas */
struct rb_root_cached va;
struct list_head non_priv_vm_bind_list;
--
2.21.0.rc0.32.g243a4c7e27
