Re: [RFC v4 13/14] drm/i915/vm_bind: Skip vma_lookup for persistent vmas

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On 21/09/2022 08:09, Niranjana Vishwanathapura wrote:
vma_lookup is tied to segment of the object instead of section

Can be, but not only that. It would be more accurate to say it is based of gtt views.

of VA space. Hence, it do not support aliasing (ie., multiple
bindings to the same section of the object).
Skip vma_lookup for persistent vmas as it supports aliasing.

What's broken without this patch? If something is, should it go somewhere earlier in the series? If so should be mentioned in the commit message.

Or is it just a performance optimisation to skip unused tracking? If so should also be mentioned in the commit message.


Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@xxxxxxxxx>
Signed-off-by: Andi Shyti <andi.shyti@xxxxxxxxxxxxxxx>
---
  drivers/gpu/drm/i915/display/intel_fb_pin.c   |  2 +-
  .../drm/i915/display/intel_plane_initial.c    |  2 +-
  .../gpu/drm/i915/gem/i915_gem_execbuffer.c    |  4 +-
  .../drm/i915/gem/i915_gem_vm_bind_object.c    |  2 +-
  .../gpu/drm/i915/gem/selftests/huge_pages.c   | 16 +++----
  .../i915/gem/selftests/i915_gem_client_blt.c  |  2 +-
  .../drm/i915/gem/selftests/i915_gem_context.c | 12 ++---
  .../drm/i915/gem/selftests/i915_gem_migrate.c |  2 +-
  .../drm/i915/gem/selftests/i915_gem_mman.c    |  6 ++-
  .../drm/i915/gem/selftests/igt_gem_utils.c    |  2 +-
  drivers/gpu/drm/i915/gt/gen6_ppgtt.c          |  2 +-
  drivers/gpu/drm/i915/gt/intel_engine_cs.c     |  2 +-
  drivers/gpu/drm/i915/gt/intel_gt.c            |  2 +-
  drivers/gpu/drm/i915/gt/intel_gtt.c           |  2 +-
  drivers/gpu/drm/i915/gt/intel_lrc.c           |  4 +-
  drivers/gpu/drm/i915/gt/intel_renderstate.c   |  2 +-
  drivers/gpu/drm/i915/gt/intel_ring.c          |  2 +-
  .../gpu/drm/i915/gt/intel_ring_submission.c   |  4 +-
  drivers/gpu/drm/i915/gt/intel_timeline.c      |  2 +-
  drivers/gpu/drm/i915/gt/mock_engine.c         |  2 +-
  drivers/gpu/drm/i915/gt/selftest_engine_cs.c  |  4 +-
  drivers/gpu/drm/i915/gt/selftest_execlists.c  | 16 +++----
  drivers/gpu/drm/i915/gt/selftest_hangcheck.c  |  6 +--
  drivers/gpu/drm/i915/gt/selftest_lrc.c        |  2 +-
  .../drm/i915/gt/selftest_ring_submission.c    |  2 +-
  drivers/gpu/drm/i915/gt/selftest_rps.c        |  2 +-
  .../gpu/drm/i915/gt/selftest_workarounds.c    |  4 +-
  drivers/gpu/drm/i915/gt/uc/intel_guc.c        |  2 +-
  drivers/gpu/drm/i915/i915_gem.c               |  2 +-
  drivers/gpu/drm/i915/i915_perf.c              |  2 +-
  drivers/gpu/drm/i915/i915_vma.c               | 26 +++++++----
  drivers/gpu/drm/i915/i915_vma.h               |  3 +-
  drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 44 +++++++++----------
  drivers/gpu/drm/i915/selftests/i915_request.c |  4 +-
  drivers/gpu/drm/i915/selftests/i915_vma.c     |  2 +-
  drivers/gpu/drm/i915/selftests/igt_spinner.c  |  2 +-
  .../drm/i915/selftests/intel_memory_region.c  |  2 +-
  37 files changed, 106 insertions(+), 93 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_fb_pin.c b/drivers/gpu/drm/i915/display/intel_fb_pin.c
index c86e5d4ee016..5a718b247bb3 100644
--- a/drivers/gpu/drm/i915/display/intel_fb_pin.c
+++ b/drivers/gpu/drm/i915/display/intel_fb_pin.c
@@ -47,7 +47,7 @@ intel_pin_fb_obj_dpt(struct drm_framebuffer *fb,
  		goto err;
  	}
- vma = i915_vma_instance(obj, vm, view);
+	vma = i915_vma_instance(obj, vm, view, false);

Hey why are you touching all the legacy paths? >:P

  	if (IS_ERR(vma))
  		goto err;
diff --git a/drivers/gpu/drm/i915/display/intel_plane_initial.c b/drivers/gpu/drm/i915/display/intel_plane_initial.c
index 76be796df255..7667e2faa3fb 100644
--- a/drivers/gpu/drm/i915/display/intel_plane_initial.c
+++ b/drivers/gpu/drm/i915/display/intel_plane_initial.c
@@ -136,7 +136,7 @@ initial_plane_vma(struct drm_i915_private *i915,
  		goto err_obj;
  	}
- vma = i915_vma_instance(obj, &to_gt(i915)->ggtt->vm, NULL);
+	vma = i915_vma_instance(obj, &to_gt(i915)->ggtt->vm, NULL, false);
  	if (IS_ERR(vma))
  		goto err_obj;
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 363b2a788cdf..0ee43cb601b5 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -876,7 +876,7 @@ static struct i915_vma *eb_lookup_vma(struct i915_execbuffer *eb, u32 handle)
  			}
  		}
- vma = i915_vma_instance(obj, vm, NULL);
+		vma = i915_vma_instance(obj, vm, NULL, false);
  		if (IS_ERR(vma)) {
  			i915_gem_object_put(obj);
  			return vma;
@@ -2208,7 +2208,7 @@ shadow_batch_pin(struct i915_execbuffer *eb,
  	struct i915_vma *vma;
  	int err;
- vma = i915_vma_instance(obj, vm, NULL);
+	vma = i915_vma_instance(obj, vm, NULL, false);
  	if (IS_ERR(vma))
  		return vma;
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 3087731cc0c0..4468603af6f1 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
@@ -252,7 +252,7 @@ static struct i915_vma *vm_bind_get_vma(struct i915_address_space *vm,
  	view.type = I915_GTT_VIEW_PARTIAL;
  	view.partial.offset = va->offset >> PAGE_SHIFT;
  	view.partial.size = va->length >> PAGE_SHIFT;
-	vma = i915_vma_instance(obj, vm, &view);
+	vma = i915_vma_instance(obj, vm, &view, true);

This is the only caller passing "true". Leave i915_vma_instance as is, and add i915_vma_instance_persistent(), and drop 90% of the patch?

  	if (IS_ERR(vma))
  		return vma;
diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
index c570cf780079..6e13a83d0e36 100644
--- a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
@@ -454,7 +454,7 @@ static int igt_mock_exhaust_device_supported_pages(void *arg)
  				goto out_put;
  			}
- vma = i915_vma_instance(obj, &ppgtt->vm, NULL);
+			vma = i915_vma_instance(obj, &ppgtt->vm, NULL, false);
  			if (IS_ERR(vma)) {
  				err = PTR_ERR(vma);
  				goto out_put;
@@ -522,7 +522,7 @@ static int igt_mock_memory_region_huge_pages(void *arg)
  				goto out_region;
  			}
- vma = i915_vma_instance(obj, &ppgtt->vm, NULL);
+			vma = i915_vma_instance(obj, &ppgtt->vm, NULL, false);
  			if (IS_ERR(vma)) {
  				err = PTR_ERR(vma);
  				goto out_put;
@@ -614,7 +614,7 @@ static int igt_mock_ppgtt_misaligned_dma(void *arg)
  		/* Force the page size for this object */
  		obj->mm.page_sizes.sg = page_size;
- vma = i915_vma_instance(obj, &ppgtt->vm, NULL);
+		vma = i915_vma_instance(obj, &ppgtt->vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto out_unpin;
@@ -746,7 +746,7 @@ static int igt_mock_ppgtt_huge_fill(void *arg)
list_add(&obj->st_link, &objects); - vma = i915_vma_instance(obj, &ppgtt->vm, NULL);
+		vma = i915_vma_instance(obj, &ppgtt->vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			break;
@@ -924,7 +924,7 @@ static int igt_mock_ppgtt_64K(void *arg)
  			 */
  			obj->mm.page_sizes.sg &= ~I915_GTT_PAGE_SIZE_2M;
- vma = i915_vma_instance(obj, &ppgtt->vm, NULL);
+			vma = i915_vma_instance(obj, &ppgtt->vm, NULL, false);
  			if (IS_ERR(vma)) {
  				err = PTR_ERR(vma);
  				goto out_object_unpin;
@@ -1092,7 +1092,7 @@ static int __igt_write_huge(struct intel_context *ce,
  	struct i915_vma *vma;
  	int err;
- vma = i915_vma_instance(obj, ce->vm, NULL);
+	vma = i915_vma_instance(obj, ce->vm, NULL, false);
  	if (IS_ERR(vma))
  		return PTR_ERR(vma);
@@ -1587,7 +1587,7 @@ static int igt_tmpfs_fallback(void *arg)
  	__i915_gem_object_flush_map(obj, 0, 64);
  	i915_gem_object_unpin_map(obj);
- vma = i915_vma_instance(obj, vm, NULL);
+	vma = i915_vma_instance(obj, vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto out_put;
@@ -1654,7 +1654,7 @@ static int igt_shrink_thp(void *arg)
  		goto out_vm;
  	}
- vma = i915_vma_instance(obj, vm, NULL);
+	vma = i915_vma_instance(obj, vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto out_put;
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_client_blt.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_client_blt.c
index 9a6a6b5b722b..e6c6c73bf80e 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_client_blt.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_client_blt.c
@@ -282,7 +282,7 @@ __create_vma(struct tiled_blits *t, size_t size, bool lmem)
  	if (IS_ERR(obj))
  		return ERR_CAST(obj);
- vma = i915_vma_instance(obj, t->ce->vm, NULL);
+	vma = i915_vma_instance(obj, t->ce->vm, NULL, false);
  	if (IS_ERR(vma))
  		i915_gem_object_put(obj);
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
index c6ad67b90e8a..570f74df9bef 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
@@ -426,7 +426,7 @@ static int gpu_fill(struct intel_context *ce,
  	GEM_BUG_ON(obj->base.size > ce->vm->total);
  	GEM_BUG_ON(!intel_engine_can_store_dword(ce->engine));
- vma = i915_vma_instance(obj, ce->vm, NULL);
+	vma = i915_vma_instance(obj, ce->vm, NULL, false);
  	if (IS_ERR(vma))
  		return PTR_ERR(vma);
@@ -930,7 +930,7 @@ emit_rpcs_query(struct drm_i915_gem_object *obj,
  	if (GRAPHICS_VER(i915) < 8)
  		return -EINVAL;
- vma = i915_vma_instance(obj, ce->vm, NULL);
+	vma = i915_vma_instance(obj, ce->vm, NULL, false);
  	if (IS_ERR(vma))
  		return PTR_ERR(vma);
@@ -938,7 +938,7 @@ emit_rpcs_query(struct drm_i915_gem_object *obj,
  	if (IS_ERR(rpcs))
  		return PTR_ERR(rpcs);
- batch = i915_vma_instance(rpcs, ce->vm, NULL);
+	batch = i915_vma_instance(rpcs, ce->vm, NULL, false);
  	if (IS_ERR(batch)) {
  		err = PTR_ERR(batch);
  		goto err_put;
@@ -1522,7 +1522,7 @@ static int write_to_scratch(struct i915_gem_context *ctx,
  	intel_gt_chipset_flush(engine->gt);
vm = i915_gem_context_get_eb_vm(ctx);
-	vma = i915_vma_instance(obj, vm, NULL);
+	vma = i915_vma_instance(obj, vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto out_vm;
@@ -1599,7 +1599,7 @@ static int read_from_scratch(struct i915_gem_context *ctx,
  		const u32 GPR0 = engine->mmio_base + 0x600;
vm = i915_gem_context_get_eb_vm(ctx);
-		vma = i915_vma_instance(obj, vm, NULL);
+		vma = i915_vma_instance(obj, vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto out_vm;
@@ -1635,7 +1635,7 @@ static int read_from_scratch(struct i915_gem_context *ctx,
/* hsw: register access even to 3DPRIM! is protected */
  		vm = i915_vm_get(&engine->gt->ggtt->vm);
-		vma = i915_vma_instance(obj, vm, NULL);
+		vma = i915_vma_instance(obj, vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto out_vm;
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c
index fe6c37fd7859..fc235e1e6c12 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_migrate.c
@@ -201,7 +201,7 @@ static int __igt_lmem_pages_migrate(struct intel_gt *gt,
  		return PTR_ERR(obj);
if (vm) {
-		vma = i915_vma_instance(obj, vm, NULL);
+		vma = i915_vma_instance(obj, vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto out_put;
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
index b73c91aa5450..e07c91dc33ba 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
@@ -546,7 +546,8 @@ static int make_obj_busy(struct drm_i915_gem_object *obj)
  		struct i915_gem_ww_ctx ww;
  		int err;
- vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL);
+		vma = i915_vma_instance(obj, &engine->gt->ggtt->vm,
+					NULL, false);
  		if (IS_ERR(vma))
  			return PTR_ERR(vma);
@@ -1587,7 +1588,8 @@ static int __igt_mmap_gpu(struct drm_i915_private *i915,
  		struct i915_vma *vma;
  		struct i915_gem_ww_ctx ww;
- vma = i915_vma_instance(obj, engine->kernel_context->vm, NULL);
+		vma = i915_vma_instance(obj, engine->kernel_context->vm,
+					NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto out_unmap;
diff --git a/drivers/gpu/drm/i915/gem/selftests/igt_gem_utils.c b/drivers/gpu/drm/i915/gem/selftests/igt_gem_utils.c
index 3c55e77b0f1b..4184e198c824 100644
--- a/drivers/gpu/drm/i915/gem/selftests/igt_gem_utils.c
+++ b/drivers/gpu/drm/i915/gem/selftests/igt_gem_utils.c
@@ -91,7 +91,7 @@ igt_emit_store_dw(struct i915_vma *vma,
intel_gt_chipset_flush(vma->vm->gt); - vma = i915_vma_instance(obj, vma->vm, NULL);
+	vma = i915_vma_instance(obj, vma->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err;
diff --git a/drivers/gpu/drm/i915/gt/gen6_ppgtt.c b/drivers/gpu/drm/i915/gt/gen6_ppgtt.c
index 1bb766c79dcb..a0af2aa50533 100644
--- a/drivers/gpu/drm/i915/gt/gen6_ppgtt.c
+++ b/drivers/gpu/drm/i915/gt/gen6_ppgtt.c
@@ -395,7 +395,7 @@ gen6_alloc_top_pd(struct gen6_ppgtt *ppgtt)
  	pd->pt.base->base.resv = i915_vm_resv_get(&ppgtt->base.vm);
  	pd->pt.base->shares_resv_from = &ppgtt->base.vm;
- ppgtt->vma = i915_vma_instance(pd->pt.base, &ggtt->vm, NULL);
+	ppgtt->vma = i915_vma_instance(pd->pt.base, &ggtt->vm, NULL, false);
  	if (IS_ERR(ppgtt->vma)) {
  		err = PTR_ERR(ppgtt->vma);
  		ppgtt->vma = NULL;
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 2ddcad497fa3..8146bf811d0f 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -1001,7 +1001,7 @@ static int init_status_page(struct intel_engine_cs *engine)
i915_gem_object_set_cache_coherency(obj, I915_CACHE_LLC); - vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL);
+	vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		ret = PTR_ERR(vma);
  		goto err_put;
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index b367cfff48d5..8a78c6cec7b4 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -441,7 +441,7 @@ static int intel_gt_init_scratch(struct intel_gt *gt, unsigned int size)
  		return PTR_ERR(obj);
  	}
- vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL);
+	vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		ret = PTR_ERR(vma);
  		goto err_unref;
diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.c b/drivers/gpu/drm/i915/gt/intel_gtt.c
index 401202391649..c9bc33149ad7 100644
--- a/drivers/gpu/drm/i915/gt/intel_gtt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gtt.c
@@ -628,7 +628,7 @@ __vm_create_scratch_for_read(struct i915_address_space *vm, unsigned long size)
i915_gem_object_set_cache_coherency(obj, I915_CACHING_CACHED); - vma = i915_vma_instance(obj, vm, NULL);
+	vma = i915_vma_instance(obj, vm, NULL, false);
  	if (IS_ERR(vma)) {
  		i915_gem_object_put(obj);
  		return vma;
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 3955292483a6..570d097a2492 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -1029,7 +1029,7 @@ __lrc_alloc_state(struct intel_context *ce, struct intel_engine_cs *engine)
  	if (IS_ERR(obj))
  		return ERR_CAST(obj);
- vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL);
+	vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		i915_gem_object_put(obj);
  		return vma;
@@ -1685,7 +1685,7 @@ static int lrc_create_wa_ctx(struct intel_engine_cs *engine)
  	if (IS_ERR(obj))
  		return PTR_ERR(obj);
- vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL);
+	vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err;
diff --git a/drivers/gpu/drm/i915/gt/intel_renderstate.c b/drivers/gpu/drm/i915/gt/intel_renderstate.c
index 5121e6dc2fa5..bc7a2d4421db 100644
--- a/drivers/gpu/drm/i915/gt/intel_renderstate.c
+++ b/drivers/gpu/drm/i915/gt/intel_renderstate.c
@@ -157,7 +157,7 @@ int intel_renderstate_init(struct intel_renderstate *so,
  		if (IS_ERR(obj))
  			return PTR_ERR(obj);
- so->vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL);
+		so->vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL, false);
  		if (IS_ERR(so->vma)) {
  			err = PTR_ERR(so->vma);
  			goto err_obj;
diff --git a/drivers/gpu/drm/i915/gt/intel_ring.c b/drivers/gpu/drm/i915/gt/intel_ring.c
index 15ec64d881c4..24c8b738a394 100644
--- a/drivers/gpu/drm/i915/gt/intel_ring.c
+++ b/drivers/gpu/drm/i915/gt/intel_ring.c
@@ -130,7 +130,7 @@ static struct i915_vma *create_ring_vma(struct i915_ggtt *ggtt, int size)
  	if (vm->has_read_only)
  		i915_gem_object_set_readonly(obj);
- vma = i915_vma_instance(obj, vm, NULL);
+	vma = i915_vma_instance(obj, vm, NULL, false);
  	if (IS_ERR(vma))
  		goto err;
diff --git a/drivers/gpu/drm/i915/gt/intel_ring_submission.c b/drivers/gpu/drm/i915/gt/intel_ring_submission.c
index d5d6f1fadcae..5e93a4052140 100644
--- a/drivers/gpu/drm/i915/gt/intel_ring_submission.c
+++ b/drivers/gpu/drm/i915/gt/intel_ring_submission.c
@@ -551,7 +551,7 @@ alloc_context_vma(struct intel_engine_cs *engine)
  	if (IS_IVYBRIDGE(i915))
  		i915_gem_object_set_cache_coherency(obj, I915_CACHE_L3_LLC);
- vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL);
+	vma = i915_vma_instance(obj, &engine->gt->ggtt->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err_obj;
@@ -1291,7 +1291,7 @@ static struct i915_vma *gen7_ctx_vma(struct intel_engine_cs *engine)
  	if (IS_ERR(obj))
  		return ERR_CAST(obj);
- vma = i915_vma_instance(obj, engine->gt->vm, NULL);
+	vma = i915_vma_instance(obj, engine->gt->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		i915_gem_object_put(obj);
  		return ERR_CAST(vma);
diff --git a/drivers/gpu/drm/i915/gt/intel_timeline.c b/drivers/gpu/drm/i915/gt/intel_timeline.c
index b9640212d659..31f56996f100 100644
--- a/drivers/gpu/drm/i915/gt/intel_timeline.c
+++ b/drivers/gpu/drm/i915/gt/intel_timeline.c
@@ -28,7 +28,7 @@ static struct i915_vma *hwsp_alloc(struct intel_gt *gt)
i915_gem_object_set_cache_coherency(obj, I915_CACHE_LLC); - vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL);
+	vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL, false);
  	if (IS_ERR(vma))
  		i915_gem_object_put(obj);
diff --git a/drivers/gpu/drm/i915/gt/mock_engine.c b/drivers/gpu/drm/i915/gt/mock_engine.c
index c0637bf799a3..6f3578308395 100644
--- a/drivers/gpu/drm/i915/gt/mock_engine.c
+++ b/drivers/gpu/drm/i915/gt/mock_engine.c
@@ -46,7 +46,7 @@ static struct i915_vma *create_ring_vma(struct i915_ggtt *ggtt, int size)
  	if (IS_ERR(obj))
  		return ERR_CAST(obj);
- vma = i915_vma_instance(obj, vm, NULL);
+	vma = i915_vma_instance(obj, vm, NULL, false);
  	if (IS_ERR(vma))
  		goto err;
diff --git a/drivers/gpu/drm/i915/gt/selftest_engine_cs.c b/drivers/gpu/drm/i915/gt/selftest_engine_cs.c
index 1b75f478d1b8..16fcaba7c980 100644
--- a/drivers/gpu/drm/i915/gt/selftest_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/selftest_engine_cs.c
@@ -85,7 +85,7 @@ static struct i915_vma *create_empty_batch(struct intel_context *ce)
i915_gem_object_flush_map(obj); - vma = i915_vma_instance(obj, ce->vm, NULL);
+	vma = i915_vma_instance(obj, ce->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err_unpin;
@@ -222,7 +222,7 @@ static struct i915_vma *create_nop_batch(struct intel_context *ce)
i915_gem_object_flush_map(obj); - vma = i915_vma_instance(obj, ce->vm, NULL);
+	vma = i915_vma_instance(obj, ce->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err_unpin;
diff --git a/drivers/gpu/drm/i915/gt/selftest_execlists.c b/drivers/gpu/drm/i915/gt/selftest_execlists.c
index 1e08b2473b99..643ffcb3964a 100644
--- a/drivers/gpu/drm/i915/gt/selftest_execlists.c
+++ b/drivers/gpu/drm/i915/gt/selftest_execlists.c
@@ -1000,7 +1000,7 @@ static int live_timeslice_preempt(void *arg)
  	if (IS_ERR(obj))
  		return PTR_ERR(obj);
- vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL);
+	vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err_obj;
@@ -1307,7 +1307,7 @@ static int live_timeslice_queue(void *arg)
  	if (IS_ERR(obj))
  		return PTR_ERR(obj);
- vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL);
+	vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err_obj;
@@ -1562,7 +1562,7 @@ static int live_busywait_preempt(void *arg)
  		goto err_obj;
  	}
- vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL);
+	vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err_map;
@@ -2716,7 +2716,7 @@ static int create_gang(struct intel_engine_cs *engine,
  		goto err_ce;
  	}
- vma = i915_vma_instance(obj, ce->vm, NULL);
+	vma = i915_vma_instance(obj, ce->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err_obj;
@@ -3060,7 +3060,7 @@ create_gpr_user(struct intel_engine_cs *engine,
  	if (IS_ERR(obj))
  		return ERR_CAST(obj);
- vma = i915_vma_instance(obj, result->vm, NULL);
+	vma = i915_vma_instance(obj, result->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		i915_gem_object_put(obj);
  		return vma;
@@ -3130,7 +3130,7 @@ static struct i915_vma *create_global(struct intel_gt *gt, size_t sz)
  	if (IS_ERR(obj))
  		return ERR_CAST(obj);
- vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL);
+	vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		i915_gem_object_put(obj);
  		return vma;
@@ -3159,7 +3159,7 @@ create_gpr_client(struct intel_engine_cs *engine,
  	if (IS_ERR(ce))
  		return ERR_CAST(ce);
- vma = i915_vma_instance(global->obj, ce->vm, NULL);
+	vma = i915_vma_instance(global->obj, ce->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto out_ce;
@@ -3501,7 +3501,7 @@ static int smoke_submit(struct preempt_smoke *smoke,
  		struct i915_address_space *vm;
vm = i915_gem_context_get_eb_vm(ctx);
-		vma = i915_vma_instance(batch, vm, NULL);
+		vma = i915_vma_instance(batch, vm, NULL, false);
  		i915_vm_put(vm);
  		if (IS_ERR(vma))
  			return PTR_ERR(vma);
diff --git a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
index 7f3bb1d34dfb..0b021a32d0e0 100644
--- a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
+++ b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
@@ -147,13 +147,13 @@ hang_create_request(struct hang *h, struct intel_engine_cs *engine)
  	h->obj = obj;
  	h->batch = vaddr;
- vma = i915_vma_instance(h->obj, vm, NULL);
+	vma = i915_vma_instance(h->obj, vm, NULL, false);
  	if (IS_ERR(vma)) {
  		i915_vm_put(vm);
  		return ERR_CAST(vma);
  	}
- hws = i915_vma_instance(h->hws, vm, NULL);
+	hws = i915_vma_instance(h->hws, vm, NULL, false);
  	if (IS_ERR(hws)) {
  		i915_vm_put(vm);
  		return ERR_CAST(hws);
@@ -1474,7 +1474,7 @@ static int __igt_reset_evict_vma(struct intel_gt *gt,
  		}
  	}
- arg.vma = i915_vma_instance(obj, vm, NULL);
+	arg.vma = i915_vma_instance(obj, vm, NULL, false);
  	if (IS_ERR(arg.vma)) {
  		err = PTR_ERR(arg.vma);
  		pr_err("[%s] VMA instance failed: %d!\n", engine->name, err);
diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c
index 82d3f8058995..32867049b3bf 100644
--- a/drivers/gpu/drm/i915/gt/selftest_lrc.c
+++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c
@@ -938,7 +938,7 @@ create_user_vma(struct i915_address_space *vm, unsigned long size)
  	if (IS_ERR(obj))
  		return ERR_CAST(obj);
- vma = i915_vma_instance(obj, vm, NULL);
+	vma = i915_vma_instance(obj, vm, NULL, false);
  	if (IS_ERR(vma)) {
  		i915_gem_object_put(obj);
  		return vma;
diff --git a/drivers/gpu/drm/i915/gt/selftest_ring_submission.c b/drivers/gpu/drm/i915/gt/selftest_ring_submission.c
index 70f9ac1ec2c7..7e9361104620 100644
--- a/drivers/gpu/drm/i915/gt/selftest_ring_submission.c
+++ b/drivers/gpu/drm/i915/gt/selftest_ring_submission.c
@@ -17,7 +17,7 @@ static struct i915_vma *create_wally(struct intel_engine_cs *engine)
  	if (IS_ERR(obj))
  		return ERR_CAST(obj);
- vma = i915_vma_instance(obj, engine->gt->vm, NULL);
+	vma = i915_vma_instance(obj, engine->gt->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		i915_gem_object_put(obj);
  		return vma;
diff --git a/drivers/gpu/drm/i915/gt/selftest_rps.c b/drivers/gpu/drm/i915/gt/selftest_rps.c
index cfb4708dd62e..327558828bef 100644
--- a/drivers/gpu/drm/i915/gt/selftest_rps.c
+++ b/drivers/gpu/drm/i915/gt/selftest_rps.c
@@ -78,7 +78,7 @@ create_spin_counter(struct intel_engine_cs *engine,
end = obj->base.size / sizeof(u32) - 1; - vma = i915_vma_instance(obj, vm, NULL);
+	vma = i915_vma_instance(obj, vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err_put;
diff --git a/drivers/gpu/drm/i915/gt/selftest_workarounds.c b/drivers/gpu/drm/i915/gt/selftest_workarounds.c
index 67a9aab801dd..d893ea763ac6 100644
--- a/drivers/gpu/drm/i915/gt/selftest_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/selftest_workarounds.c
@@ -122,7 +122,7 @@ read_nonprivs(struct intel_context *ce)
  	i915_gem_object_flush_map(result);
  	i915_gem_object_unpin_map(result);
- vma = i915_vma_instance(result, &engine->gt->ggtt->vm, NULL);
+	vma = i915_vma_instance(result, &engine->gt->ggtt->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err_obj;
@@ -389,7 +389,7 @@ static struct i915_vma *create_batch(struct i915_address_space *vm)
  	if (IS_ERR(obj))
  		return ERR_CAST(obj);
- vma = i915_vma_instance(obj, vm, NULL);
+	vma = i915_vma_instance(obj, vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err_obj;
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
index bac06e3d6f2c..d56b1f82250c 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
@@ -737,7 +737,7 @@ struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size)
  	if (IS_ERR(obj))
  		return ERR_CAST(obj);
- vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL);
+	vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL, false);
  	if (IS_ERR(vma))
  		goto err;
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 88df9a35e0fe..bb6b1f56836f 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -934,7 +934,7 @@ i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,
  	}
new_vma:
-	vma = i915_vma_instance(obj, &ggtt->vm, view);
+	vma = i915_vma_instance(obj, &ggtt->vm, view, false);
  	if (IS_ERR(vma))
  		return vma;
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 0defbb43ceea..d8f5ef9fd00f 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1920,7 +1920,7 @@ alloc_oa_config_buffer(struct i915_perf_stream *stream,
oa_bo->vma = i915_vma_instance(obj,
  				       &stream->engine->gt->ggtt->vm,
-				       NULL);
+				       NULL, false);
  	if (IS_ERR(oa_bo->vma)) {
  		err = PTR_ERR(oa_bo->vma);
  		goto out_ww;
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index 24f171588f56..ef709a61fd54 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -110,7 +110,8 @@ static void __i915_vma_retire(struct i915_active *ref)
  static struct i915_vma *
  vma_create(struct drm_i915_gem_object *obj,
  	   struct i915_address_space *vm,
-	   const struct i915_gtt_view *view)
+	   const struct i915_gtt_view *view,
+	   bool persistent)
  {
  	struct i915_vma *pos = ERR_PTR(-E2BIG);
  	struct i915_vma *vma;
@@ -197,6 +198,9 @@ vma_create(struct drm_i915_gem_object *obj,
  		__set_bit(I915_VMA_GGTT_BIT, __i915_vma_flags(vma));
  	}
+ if (persistent)
+		goto skip_rb_insert;

Oh so you don't use the gtt_view's fully at all. I now have reservations whether that was the right approach. Since you are not using the existing rb tree tracking I mean..

You know if a vma is persistent right? So you could have just added special case for persistent vmas to __i915_vma_get_pages and still call intel_partial_pages from there. Maybe union over struct i915_gtt_view in i915_vma for either the view or struct intel_partial_info for persistent ones.

Regards,

Tvrtko

+
  	rb = NULL;
  	p = &obj->vma.tree.rb_node;
  	while (*p) {
@@ -221,6 +225,7 @@ vma_create(struct drm_i915_gem_object *obj,
  	rb_link_node(&vma->obj_node, rb, p);
  	rb_insert_color(&vma->obj_node, &obj->vma.tree);
+skip_rb_insert:
  	if (i915_vma_is_ggtt(vma))
  		/*
  		 * We put the GGTT vma at the start of the vma-list, followed
@@ -279,6 +284,7 @@ i915_vma_lookup(struct drm_i915_gem_object *obj,
   * @obj: parent &struct drm_i915_gem_object to be mapped
   * @vm: address space in which the mapping is located
   * @view: additional mapping requirements
+ * @persistent: Whether the vma is persistent
   *
   * i915_vma_instance() looks up an existing VMA of the @obj in the @vm with
   * the same @view characteristics. If a match is not found, one is created.
@@ -290,19 +296,22 @@ i915_vma_lookup(struct drm_i915_gem_object *obj,
  struct i915_vma *
  i915_vma_instance(struct drm_i915_gem_object *obj,
  		  struct i915_address_space *vm,
-		  const struct i915_gtt_view *view)
+		  const struct i915_gtt_view *view,
+		  bool persistent)
  {
-	struct i915_vma *vma;
+	struct i915_vma *vma = NULL;
GEM_BUG_ON(!kref_read(&vm->ref)); - spin_lock(&obj->vma.lock);
-	vma = i915_vma_lookup(obj, vm, view);
-	spin_unlock(&obj->vma.lock);
+	if (!persistent) {
+		spin_lock(&obj->vma.lock);
+		vma = i915_vma_lookup(obj, vm, view);
+		spin_unlock(&obj->vma.lock);
+	}
/* vma_create() will resolve the race if another creates the vma */
  	if (unlikely(!vma))
-		vma = vma_create(obj, vm, view);
+		vma = vma_create(obj, vm, view, persistent);
GEM_BUG_ON(!IS_ERR(vma) && i915_vma_compare(vma, vm, view));
  	return vma;
@@ -1704,7 +1713,8 @@ static void release_references(struct i915_vma *vma, struct intel_gt *gt,
spin_lock(&obj->vma.lock);
  	list_del(&vma->obj_link);
-	if (!RB_EMPTY_NODE(&vma->obj_node))
+	if (!i915_vma_is_persistent(vma) &&
+	    !RB_EMPTY_NODE(&vma->obj_node))
  		rb_erase(&vma->obj_node, &obj->vma.tree);
spin_unlock(&obj->vma.lock);
diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h
index 3a47db2d85f5..b8e805c6532f 100644
--- a/drivers/gpu/drm/i915/i915_vma.h
+++ b/drivers/gpu/drm/i915/i915_vma.h
@@ -43,7 +43,8 @@
  struct i915_vma *
  i915_vma_instance(struct drm_i915_gem_object *obj,
  		  struct i915_address_space *vm,
-		  const struct i915_gtt_view *view);
+		  const struct i915_gtt_view *view,
+		  bool persistent);
void i915_vma_unpin_and_release(struct i915_vma **p_vma, unsigned int flags);
  #define I915_VMA_RELEASE_MAP BIT(0)
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index e050a2de5fd1..d8ffbdf91498 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -390,7 +390,7 @@ static void close_object_list(struct list_head *objects,
  	list_for_each_entry_safe(obj, on, objects, st_link) {
  		struct i915_vma *vma;
- vma = i915_vma_instance(obj, vm, NULL);
+		vma = i915_vma_instance(obj, vm, NULL, false);
  		if (!IS_ERR(vma))
  			ignored = i915_vma_unbind_unlocked(vma);
@@ -452,7 +452,7 @@ static int fill_hole(struct i915_address_space *vm,
  					u64 aligned_size = round_up(obj->base.size,
  								    min_alignment);
- vma = i915_vma_instance(obj, vm, NULL);
+					vma = i915_vma_instance(obj, vm, NULL, false);
  					if (IS_ERR(vma))
  						continue;
@@ -492,7 +492,7 @@ static int fill_hole(struct i915_address_space *vm,
  					u64 aligned_size = round_up(obj->base.size,
  								    min_alignment);
- vma = i915_vma_instance(obj, vm, NULL);
+					vma = i915_vma_instance(obj, vm, NULL, false);
  					if (IS_ERR(vma))
  						continue;
@@ -531,7 +531,7 @@ static int fill_hole(struct i915_address_space *vm,
  					u64 aligned_size = round_up(obj->base.size,
  								    min_alignment);
- vma = i915_vma_instance(obj, vm, NULL);
+					vma = i915_vma_instance(obj, vm, NULL, false);
  					if (IS_ERR(vma))
  						continue;
@@ -571,7 +571,7 @@ static int fill_hole(struct i915_address_space *vm,
  					u64 aligned_size = round_up(obj->base.size,
  								    min_alignment);
- vma = i915_vma_instance(obj, vm, NULL);
+					vma = i915_vma_instance(obj, vm, NULL, false);
  					if (IS_ERR(vma))
  						continue;
@@ -653,7 +653,7 @@ static int walk_hole(struct i915_address_space *vm,
  		if (IS_ERR(obj))
  			break;
- vma = i915_vma_instance(obj, vm, NULL);
+		vma = i915_vma_instance(obj, vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto err_put;
@@ -728,7 +728,7 @@ static int pot_hole(struct i915_address_space *vm,
  	if (IS_ERR(obj))
  		return PTR_ERR(obj);
- vma = i915_vma_instance(obj, vm, NULL);
+	vma = i915_vma_instance(obj, vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err_obj;
@@ -837,7 +837,7 @@ static int drunk_hole(struct i915_address_space *vm,
  			break;
  		}
- vma = i915_vma_instance(obj, vm, NULL);
+		vma = i915_vma_instance(obj, vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto err_obj;
@@ -920,7 +920,7 @@ static int __shrink_hole(struct i915_address_space *vm,
list_add(&obj->st_link, &objects); - vma = i915_vma_instance(obj, vm, NULL);
+		vma = i915_vma_instance(obj, vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			break;
@@ -1018,7 +1018,7 @@ static int shrink_boom(struct i915_address_space *vm,
  		if (IS_ERR(purge))
  			return PTR_ERR(purge);
- vma = i915_vma_instance(purge, vm, NULL);
+		vma = i915_vma_instance(purge, vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto err_purge;
@@ -1041,7 +1041,7 @@ static int shrink_boom(struct i915_address_space *vm,
  		vm->fault_attr.interval = 1;
  		atomic_set(&vm->fault_attr.times, -1);
- vma = i915_vma_instance(explode, vm, NULL);
+		vma = i915_vma_instance(explode, vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto err_explode;
@@ -1088,7 +1088,7 @@ static int misaligned_case(struct i915_address_space *vm, struct intel_memory_re
  		return PTR_ERR(obj);
  	}
- vma = i915_vma_instance(obj, vm, NULL);
+	vma = i915_vma_instance(obj, vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err_put;
@@ -1560,7 +1560,7 @@ static int igt_gtt_reserve(void *arg)
  		}
list_add(&obj->st_link, &objects);
-		vma = i915_vma_instance(obj, &ggtt->vm, NULL);
+		vma = i915_vma_instance(obj, &ggtt->vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto out;
@@ -1606,7 +1606,7 @@ static int igt_gtt_reserve(void *arg)
list_add(&obj->st_link, &objects); - vma = i915_vma_instance(obj, &ggtt->vm, NULL);
+		vma = i915_vma_instance(obj, &ggtt->vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto out;
@@ -1636,7 +1636,7 @@ static int igt_gtt_reserve(void *arg)
  		struct i915_vma *vma;
  		u64 offset;
- vma = i915_vma_instance(obj, &ggtt->vm, NULL);
+		vma = i915_vma_instance(obj, &ggtt->vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto out;
@@ -1783,7 +1783,7 @@ static int igt_gtt_insert(void *arg)
list_add(&obj->st_link, &objects); - vma = i915_vma_instance(obj, &ggtt->vm, NULL);
+		vma = i915_vma_instance(obj, &ggtt->vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto out;
@@ -1809,7 +1809,7 @@ static int igt_gtt_insert(void *arg)
  	list_for_each_entry(obj, &objects, st_link) {
  		struct i915_vma *vma;
- vma = i915_vma_instance(obj, &ggtt->vm, NULL);
+		vma = i915_vma_instance(obj, &ggtt->vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto out;
@@ -1829,7 +1829,7 @@ static int igt_gtt_insert(void *arg)
  		struct i915_vma *vma;
  		u64 offset;
- vma = i915_vma_instance(obj, &ggtt->vm, NULL);
+		vma = i915_vma_instance(obj, &ggtt->vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto out;
@@ -1882,7 +1882,7 @@ static int igt_gtt_insert(void *arg)
list_add(&obj->st_link, &objects); - vma = i915_vma_instance(obj, &ggtt->vm, NULL);
+		vma = i915_vma_instance(obj, &ggtt->vm, NULL, false);
  		if (IS_ERR(vma)) {
  			err = PTR_ERR(vma);
  			goto out;
@@ -2091,7 +2091,7 @@ static int igt_cs_tlb(void *arg)
  	}
  	i915_gem_object_set_cache_coherency(out, I915_CACHING_CACHED);
- vma = i915_vma_instance(out, vm, NULL);
+	vma = i915_vma_instance(out, vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto out_put_out;
@@ -2131,7 +2131,7 @@ static int igt_cs_tlb(void *arg)
memset32(result, STACK_MAGIC, PAGE_SIZE / sizeof(u32)); - vma = i915_vma_instance(bbe, vm, NULL);
+			vma = i915_vma_instance(bbe, vm, NULL, false);
  			if (IS_ERR(vma)) {
  				err = PTR_ERR(vma);
  				goto end;
@@ -2203,7 +2203,7 @@ static int igt_cs_tlb(void *arg)
  				goto end;
  			}
- vma = i915_vma_instance(act, vm, NULL);
+			vma = i915_vma_instance(act, vm, NULL, false);
  			if (IS_ERR(vma)) {
  				kfree(vma_res);
  				err = PTR_ERR(vma);
diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c
index 818a4909c1f3..297c1d4ebf44 100644
--- a/drivers/gpu/drm/i915/selftests/i915_request.c
+++ b/drivers/gpu/drm/i915/selftests/i915_request.c
@@ -961,7 +961,7 @@ static struct i915_vma *empty_batch(struct drm_i915_private *i915)
intel_gt_chipset_flush(to_gt(i915)); - vma = i915_vma_instance(obj, &to_gt(i915)->ggtt->vm, NULL);
+	vma = i915_vma_instance(obj, &to_gt(i915)->ggtt->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err;
@@ -1100,7 +1100,7 @@ static struct i915_vma *recursive_batch(struct drm_i915_private *i915)
  	if (IS_ERR(obj))
  		return ERR_CAST(obj);
- vma = i915_vma_instance(obj, to_gt(i915)->vm, NULL);
+	vma = i915_vma_instance(obj, to_gt(i915)->vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto err;
diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c b/drivers/gpu/drm/i915/selftests/i915_vma.c
index 71b52d5efef4..3899c2252de3 100644
--- a/drivers/gpu/drm/i915/selftests/i915_vma.c
+++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
@@ -68,7 +68,7 @@ checked_vma_instance(struct drm_i915_gem_object *obj,
  	struct i915_vma *vma;
  	bool ok = true;
- vma = i915_vma_instance(obj, vm, view);
+	vma = i915_vma_instance(obj, vm, view, false);
  	if (IS_ERR(vma))
  		return vma;
diff --git a/drivers/gpu/drm/i915/selftests/igt_spinner.c b/drivers/gpu/drm/i915/selftests/igt_spinner.c
index 0c22594ae274..6901f94ff076 100644
--- a/drivers/gpu/drm/i915/selftests/igt_spinner.c
+++ b/drivers/gpu/drm/i915/selftests/igt_spinner.c
@@ -47,7 +47,7 @@ static void *igt_spinner_pin_obj(struct intel_context *ce,
  	void *vaddr;
  	int ret;
- *vma = i915_vma_instance(obj, ce->vm, NULL);
+	*vma = i915_vma_instance(obj, ce->vm, NULL, false);
  	if (IS_ERR(*vma))
  		return ERR_CAST(*vma);
diff --git a/drivers/gpu/drm/i915/selftests/intel_memory_region.c b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
index 3b18e5905c86..551d0c958a3b 100644
--- a/drivers/gpu/drm/i915/selftests/intel_memory_region.c
+++ b/drivers/gpu/drm/i915/selftests/intel_memory_region.c
@@ -745,7 +745,7 @@ static int igt_gpu_write(struct i915_gem_context *ctx,
  	if (!order)
  		return -ENOMEM;
- vma = i915_vma_instance(obj, vm, NULL);
+	vma = i915_vma_instance(obj, vm, NULL, false);
  	if (IS_ERR(vma)) {
  		err = PTR_ERR(vma);
  		goto out_free;



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