Replace the struct_mutex requirement for pinning the i915_vma with the
local vm->mutex instead. Note that the vm->mutex is tainted by the
shrinker (we require unbinding from inside fs-reclaim) and so we cannot
allocate while holding that mutex. Instead we have to preallocate
workers to do allocate and apply the PTE updates after we have we
reserved their slot in the drm_mm (using fences to order the PTE writes
with the GPU work and with later unbind).
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display.c | 30 +-
drivers/gpu/drm/i915/display/intel_fbdev.c | 8 +-
drivers/gpu/drm/i915/display/intel_overlay.c | 11 +-
drivers/gpu/drm/i915/gem/i915_gem_context.c | 20 +-
drivers/gpu/drm/i915/gem/i915_gem_domain.c | 19 +-
.../gpu/drm/i915/gem/i915_gem_execbuffer.c | 9 +-
drivers/gpu/drm/i915/gem/i915_gem_mman.c | 21 +-
drivers/gpu/drm/i915/gem/i915_gem_object.c | 33 +-
drivers/gpu/drm/i915/gem/i915_gem_object.h | 5 +
drivers/gpu/drm/i915/gem/i915_gem_shrinker.c | 67 ----
drivers/gpu/drm/i915/gem/i915_gem_stolen.c | 5 +-
drivers/gpu/drm/i915/gem/i915_gem_tiling.c | 13 +-
drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 27 +-
.../gpu/drm/i915/gem/selftests/huge_pages.c | 23 +-
.../drm/i915/gem/selftests/i915_gem_mman.c | 2 -
drivers/gpu/drm/i915/gt/intel_gt.c | 5 +-
drivers/gpu/drm/i915/gt/selftest_hangcheck.c | 19 +-
drivers/gpu/drm/i915/gvt/aperture_gm.c | 12 +-
drivers/gpu/drm/i915/i915_active.c | 66 ++++
drivers/gpu/drm/i915/i915_active.h | 2 +
drivers/gpu/drm/i915/i915_active_types.h | 5 +
drivers/gpu/drm/i915/i915_gem.c | 77 ++--
drivers/gpu/drm/i915/i915_gem_evict.c | 20 +-
drivers/gpu/drm/i915/i915_gem_fence_reg.c | 4 +-
drivers/gpu/drm/i915/i915_gem_gtt.c | 100 +++--
drivers/gpu/drm/i915/i915_gem_gtt.h | 31 +-
drivers/gpu/drm/i915/i915_perf.c | 26 +-
drivers/gpu/drm/i915/i915_vma.c | 341 +++++++++++-------
drivers/gpu/drm/i915/i915_vma.h | 59 ++-
.../gpu/drm/i915/selftests/i915_gem_evict.c | 36 +-
drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 88 +++--
drivers/gpu/drm/i915/selftests/i915_vma.c | 2 +
32 files changed, 617 insertions(+), 569 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index b51d1ceb8739..e2d166f1da6a 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -2079,8 +2079,6 @@ intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb,
unsigned int pinctl;
u32 alignment;
- WARN_ON(!mutex_is_locked(&dev->struct_mutex));
-
alignment = intel_surf_alignment(fb, 0);
/* Note that the w/a also requires 64 PTE of padding following the
@@ -2161,8 +2159,6 @@ intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb,
void intel_unpin_fb_vma(struct i915_vma *vma, unsigned long flags)
{
- lockdep_assert_held(&vma->vm->i915->drm.struct_mutex);
-
i915_gem_object_lock(vma->obj);
if (flags & PLANE_HAS_FENCE)
i915_vma_unpin_fence(vma);
@@ -3063,12 +3059,10 @@ intel_alloc_initial_plane_obj(struct intel_crtc *crtc,
return false;
}
- mutex_lock(&dev->struct_mutex);
obj = i915_gem_object_create_stolen_for_preallocated(dev_priv,
base_aligned,
base_aligned,
size_aligned);
- mutex_unlock(&dev->struct_mutex);
if (!obj)
return false;
@@ -3230,13 +3224,11 @@ intel_find_initial_plane_obj(struct intel_crtc *intel_crtc,
intel_state->color_plane[0].stride =
intel_fb_pitch(fb, 0, intel_state->base.rotation);
- mutex_lock(&dev->struct_mutex);
intel_state->vma =
intel_pin_and_fence_fb_obj(fb,
&intel_state->view,
intel_plane_uses_fence(intel_state),
&intel_state->flags);
- mutex_unlock(&dev->struct_mutex);
if (IS_ERR(intel_state->vma)) {
DRM_ERROR("failed to pin boot fb on pipe %d: %li\n",
intel_crtc->pipe, PTR_ERR(intel_state->vma));
@@ -14330,8 +14322,6 @@ static void fb_obj_bump_render_priority(struct drm_i915_gem_object *obj)
* bits. Some older platforms need special physical address handling for
* cursor planes.
*
- * Must be called with struct_mutex held.
- *
* Returns 0 on success, negative error code on failure.
*/
int
@@ -14388,15 +14378,8 @@ intel_prepare_plane_fb(struct drm_plane *plane,
if (ret)
return ret;
- ret = mutex_lock_interruptible(&dev_priv->drm.struct_mutex);
- if (ret) {
- i915_gem_object_unpin_pages(obj);
- return ret;
- }
-
ret = intel_plane_pin_fb(to_intel_plane_state(new_state));
- mutex_unlock(&dev_priv->drm.struct_mutex);
i915_gem_object_unpin_pages(obj);
if (ret)
return ret;
@@ -14445,8 +14428,6 @@ intel_prepare_plane_fb(struct drm_plane *plane,
* @old_state: the state from the previous modeset
*
* Cleans up a framebuffer that has just been removed from a plane.
- *
- * Must be called with struct_mutex held.
*/
void
intel_cleanup_plane_fb(struct drm_plane *plane,
@@ -14462,9 +14443,7 @@ intel_cleanup_plane_fb(struct drm_plane *plane,
}
/* Should only be called after a successful intel_prepare_plane_fb()! */
- mutex_lock(&dev_priv->drm.struct_mutex);
intel_plane_unpin_fb(to_intel_plane_state(old_state));
- mutex_unlock(&dev_priv->drm.struct_mutex);
}
int
@@ -14664,7 +14643,6 @@ intel_legacy_cursor_update(struct drm_plane *plane,
u32 src_w, u32 src_h,
struct drm_modeset_acquire_ctx *ctx)
{
- struct drm_i915_private *dev_priv = to_i915(crtc->dev);
struct drm_plane_state *old_plane_state, *new_plane_state;
struct intel_plane *intel_plane = to_intel_plane(plane);
struct intel_crtc_state *crtc_state =
@@ -14730,13 +14708,9 @@ intel_legacy_cursor_update(struct drm_plane *plane,
if (ret)
goto out_free;
- ret = mutex_lock_interruptible(&dev_priv->drm.struct_mutex);
- if (ret)
- goto out_free;
-
ret = intel_plane_pin_fb(to_intel_plane_state(new_plane_state));
if (ret)
- goto out_unlock;
+ goto out_free;
intel_frontbuffer_flush(to_intel_frontbuffer(fb), ORIGIN_FLIP);
intel_frontbuffer_track(to_intel_frontbuffer(old_plane_state->fb),
@@ -14766,8 +14740,6 @@ intel_legacy_cursor_update(struct drm_plane *plane,
intel_plane_unpin_fb(to_intel_plane_state(old_plane_state));
-out_unlock:
- mutex_unlock(&dev_priv->drm.struct_mutex);
out_free:
if (new_crtc_state)
intel_crtc_destroy_state(crtc, &new_crtc_state->base);
diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c
index d59eee5c5d9c..a3dea3f2dacd 100644
--- a/drivers/gpu/drm/i915/display/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/display/intel_fbdev.c
@@ -204,7 +204,6 @@ static int intelfb_create(struct drm_fb_helper *helper,
sizes->fb_height = intel_fb->base.height;
}
- mutex_lock(&dev->struct_mutex);
wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm);
/* Pin the GGTT vma for our access via info->screen_base.
@@ -266,7 +265,6 @@ static int intelfb_create(struct drm_fb_helper *helper,
ifbdev->vma_flags = flags;
intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
- mutex_unlock(&dev->struct_mutex);
vga_switcheroo_client_fb_set(pdev, info);
return 0;
@@ -274,7 +272,6 @@ static int intelfb_create(struct drm_fb_helper *helper,
intel_unpin_fb_vma(vma, flags);
out_unlock:
intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
- mutex_unlock(&dev->struct_mutex);
return ret;
}
@@ -291,11 +288,8 @@ static void intel_fbdev_destroy(struct intel_fbdev *ifbdev)
drm_fb_helper_fini(&ifbdev->helper);
- if (ifbdev->vma) {
- mutex_lock(&ifbdev->helper.dev->struct_mutex);
+ if (ifbdev->vma)
intel_unpin_fb_vma(ifbdev->vma, ifbdev->vma_flags);
- mutex_unlock(&ifbdev->helper.dev->struct_mutex);
- }
if (ifbdev->fb)
drm_framebuffer_remove(&ifbdev->fb->base);
diff --git a/drivers/gpu/drm/i915/display/intel_overlay.c b/drivers/gpu/drm/i915/display/intel_overlay.c
index 29edfc343716..4f36557b3f3b 100644
--- a/drivers/gpu/drm/i915/display/intel_overlay.c
+++ b/drivers/gpu/drm/i915/display/intel_overlay.c
@@ -1303,15 +1303,11 @@ static int get_registers(struct intel_overlay *overlay, bool use_phys)
struct i915_vma *vma;
int err;
- mutex_lock(&i915->drm.struct_mutex);
-
obj = i915_gem_object_create_stolen(i915, PAGE_SIZE);
if (obj == NULL)
obj = i915_gem_object_create_internal(i915, PAGE_SIZE);
- if (IS_ERR(obj)) {
- err = PTR_ERR(obj);
- goto err_unlock;
- }
+ if (IS_ERR(obj))
+ return PTR_ERR(obj);
vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0, PIN_MAPPABLE);
if (IS_ERR(vma)) {
@@ -1332,13 +1328,10 @@ static int get_registers(struct intel_overlay *overlay, bool use_phys)
}
overlay->reg_bo = obj;
- mutex_unlock(&i915->drm.struct_mutex);
return 0;
err_put_bo:
i915_gem_object_put(obj);
-err_unlock:
- mutex_unlock(&i915->drm.struct_mutex);
return err;
}
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index 863b5cc1ffa9..23c4a888041f 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
@@ -313,8 +313,6 @@ static void i915_gem_context_free(struct i915_gem_context *ctx)
GEM_BUG_ON(!i915_gem_context_is_closed(ctx));
release_hw_id(ctx);
- if (ctx->vm)
- i915_vm_put(ctx->vm);
free_engines(rcu_access_pointer(ctx->engines));
mutex_destroy(&ctx->engines_mutex);
@@ -379,9 +377,13 @@ void i915_gem_context_release(struct kref *ref)
static void context_close(struct i915_gem_context *ctx)
{
+ i915_gem_context_set_closed(ctx);
+
+ if (ctx->vm)
+ i915_vm_close(ctx->vm);
+
mutex_lock(&ctx->mutex);
- i915_gem_context_set_closed(ctx);
ctx->file_priv = ERR_PTR(-EBADF);
/*
@@ -474,7 +476,7 @@ __set_ppgtt(struct i915_gem_context *ctx, struct i915_address_space *vm)
GEM_BUG_ON(old && i915_vm_is_4lvl(vm) != i915_vm_is_4lvl(old));
- ctx->vm = i915_vm_get(vm);
+ ctx->vm = i915_vm_open(vm);
context_apply_all(ctx, __apply_ppgtt, vm);
return old;
@@ -488,7 +490,7 @@ static void __assign_ppgtt(struct i915_gem_context *ctx,
vm = __set_ppgtt(ctx, vm);
if (vm)
- i915_vm_put(vm);
+ i915_vm_close(vm);
}
static void __set_timeline(struct intel_timeline **dst,
@@ -953,7 +955,7 @@ static int get_ppgtt(struct drm_i915_file_private *file_priv,
if (ret < 0)
goto err_unlock;
- i915_vm_get(vm);
+ i915_vm_open(vm);
args->size = 0;
args->value = ret;
@@ -973,7 +975,7 @@ static void set_ppgtt_barrier(void *data)
if (INTEL_GEN(old->i915) < 8)
gen6_ppgtt_unpin_all(i915_vm_to_ppgtt(old));
- i915_vm_put(old);
+ i915_vm_close(old);
}
static int emit_ppgtt_update(struct i915_request *rq, void *data)
@@ -1093,8 +1095,8 @@ static int set_ppgtt(struct drm_i915_file_private *file_priv,
set_ppgtt_barrier,
old);
if (err) {
- i915_vm_put(__set_ppgtt(ctx, old));
- i915_vm_put(old);
+ i915_vm_close(__set_ppgtt(ctx, old));
+ i915_vm_close(old);
}
unlock:
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_domain.c b/drivers/gpu/drm/i915/gem/i915_gem_domain.c
index b7be9ad2b62c..51c22e044eee 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_domain.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_domain.c
@@ -202,7 +202,11 @@ int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
i915_gem_valid_gtt_space(vma, cache_level))
continue;
- ret = i915_vma_unbind(vma);
+ ret = mutex_lock_interruptible(&vma->vm->mutex);
+ if (!ret) {
+ ret = i915_vma_unbind(vma);
+ mutex_unlock(&vma->vm->mutex);
+ }
if (ret)
return ret;
@@ -288,7 +292,12 @@ int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
if (!drm_mm_node_allocated(&vma->node))
continue;
- ret = i915_vma_bind(vma, cache_level, PIN_UPDATE);
+ /* Wait for an earlier async bind */
+ ret = i915_active_wait(&vma->active);
+ if (ret)
+ return ret;
+
+ ret = i915_vma_bind(vma, cache_level, PIN_UPDATE, NULL);
if (ret)
return ret;
}
@@ -389,16 +398,11 @@ int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
if (ret)
goto out;
- ret = mutex_lock_interruptible(&i915->drm.struct_mutex);
- if (ret)
- goto out;
-
ret = i915_gem_object_lock_interruptible(obj);
if (ret == 0) {
ret = i915_gem_object_set_cache_level(obj, level);
i915_gem_object_unlock(obj);
}
- mutex_unlock(&i915->drm.struct_mutex);
out:
i915_gem_object_put(obj);
@@ -491,6 +495,7 @@ static void i915_gem_object_bump_inactive_ggtt(struct drm_i915_gem_object *obj)
if (!drm_mm_node_allocated(&vma->node))
continue;
+ GEM_BUG_ON(vma->vm != &i915->ggtt.vm);
list_move_tail(&vma->vm_link, &vma->vm->bound_list);
}
mutex_unlock(&i915->ggtt.vm.mutex);
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index b5f6937369ea..05a3e24248a5 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -549,8 +549,11 @@ eb_add_vma(struct i915_execbuffer *eb,
eb_unreserve_vma(vma, vma->exec_flags);
list_add_tail(&vma->exec_link, &eb->unbound);
- if (drm_mm_node_allocated(&vma->node))
+ if (drm_mm_node_allocated(&vma->node)) {
+ mutex_lock(&vma->vm->mutex);
err = i915_vma_unbind(vma);
+ mutex_unlock(&vma->vm->mutex);
+ }
if (unlikely(err))
vma->exec_flags = NULL;
}
@@ -697,7 +700,9 @@ static int eb_reserve(struct i915_execbuffer *eb)
case 1:
/* Too fragmented, unbind everything and retry */
+ mutex_lock(&eb->context->vm->mutex);
err = i915_gem_evict_vm(eb->context->vm);
+ mutex_unlock(&eb->context->vm->mutex);
if (err)
return err;
break;
@@ -1388,7 +1393,7 @@ eb_relocate_entry(struct i915_execbuffer *eb,
if (reloc->write_domain == I915_GEM_DOMAIN_INSTRUCTION &&
IS_GEN(eb->i915, 6)) {
err = i915_vma_bind(target, target->obj->cache_level,
- PIN_GLOBAL);
+ PIN_GLOBAL, NULL);
if (WARN_ONCE(err,
"Unexpected failure to bind target VMA!"))
return err;
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
index 595539a09e38..0440dbfda295 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
@@ -251,16 +251,6 @@ vm_fault_t i915_gem_fault(struct vm_fault *vmf)
goto err_rpm;
}
- ret = i915_mutex_lock_interruptible(dev);
- if (ret)
- goto err_reset;
-
- /* Access to snoopable pages through the GTT is incoherent. */
- if (obj->cache_level != I915_CACHE_NONE && !HAS_LLC(i915)) {
- ret = -EFAULT;
- goto err_unlock;
- }
-
/* Now pin it into the GTT as needed */
vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0,
PIN_MAPPABLE |
@@ -290,7 +280,13 @@ vm_fault_t i915_gem_fault(struct vm_fault *vmf)
}
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
- goto err_unlock;
+ goto err_reset;
+ }
+
+ /* Access to snoopable pages through the GTT is incoherent. */
+ if (obj->cache_level != I915_CACHE_NONE && !HAS_LLC(i915)) {
+ ret = -EFAULT;
+ goto err_unpin;
}
ret = i915_vma_pin_fence(vma);
@@ -319,13 +315,10 @@ vm_fault_t i915_gem_fault(struct vm_fault *vmf)
msecs_to_jiffies_timeout(CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND));
i915_vma_set_ggtt_write(vma);
-
err_fence:
i915_vma_unpin_fence(vma);
err_unpin:
__i915_vma_unpin(vma);
-err_unlock:
- mutex_unlock(&dev->struct_mutex);
err_reset:
intel_gt_reset_unlock(ggtt->vm.gt, srcu);
err_rpm:
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.c b/drivers/gpu/drm/i915/gem/i915_gem_object.c
index 0ef60dae23a7..dbf9be9a79f4 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object.c
@@ -155,21 +155,30 @@ static void __i915_gem_free_objects(struct drm_i915_private *i915,
wakeref = intel_runtime_pm_get(&i915->runtime_pm);
llist_for_each_entry_safe(obj, on, freed, freed) {
- struct i915_vma *vma, *vn;
-
trace_i915_gem_object_destroy(obj);
- mutex_lock(&i915->drm.struct_mutex);
-
- list_for_each_entry_safe(vma, vn, &obj->vma.list, obj_link) {
- GEM_BUG_ON(i915_vma_is_active(vma));
- atomic_and(~I915_VMA_PIN_MASK, &vma->flags);
- i915_vma_destroy(vma);
+ if (!list_empty(&obj->vma.list)) {
+ struct i915_vma *vma;
+
+ /*
+ * Note that the vma keeps an object reference while
+ * it is active, so it *should* not sleep while we
+ * destroy it. Our debug code errs insits it *might*.
+ * For the moment, play along.
+ */
+ spin_lock(&obj->vma.lock);
+ while ((vma = list_first_entry_or_null(&obj->vma.list,
+ struct i915_vma,
+ obj_link))) {
+ GEM_BUG_ON(vma->obj != obj);
+ spin_unlock(&obj->vma.lock);
+
+ i915_vma_destroy(vma);
+
+ spin_lock(&obj->vma.lock);
+ }
+ spin_unlock(&obj->vma.lock);
}
- GEM_BUG_ON(!list_empty(&obj->vma.list));
- GEM_BUG_ON(!RB_EMPTY_ROOT(&obj->vma.tree));
-
- mutex_unlock(&i915->drm.struct_mutex);
GEM_BUG_ON(atomic_read(&obj->bind_count));
GEM_BUG_ON(obj->userfault_count);
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.h b/drivers/gpu/drm/i915/gem/i915_gem_object.h
index 11bb1a412e4f..8dfd3e170d32 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_object.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_object.h
@@ -106,6 +106,11 @@ static inline void i915_gem_object_lock(struct drm_i915_gem_object *obj)
dma_resv_lock(obj->base.resv, NULL);
}
+static inline bool i915_gem_object_trylock(struct drm_i915_gem_object *obj)
+{
+ return dma_resv_trylock(obj->base.resv);
+}
+
static inline int
i915_gem_object_lock_interruptible(struct drm_i915_gem_object *obj)
{
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c b/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
index 841f18386b54..cb9d5c2586bd 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
@@ -16,40 +16,6 @@
#include "i915_trace.h"
-static bool shrinker_lock(struct drm_i915_private *i915,
- unsigned int flags,
- bool *unlock)
-{
- struct mutex *m = &i915->drm.struct_mutex;
-
- switch (mutex_trylock_recursive(m)) {
- case MUTEX_TRYLOCK_RECURSIVE:
- *unlock = false;
- return true;
-
- case MUTEX_TRYLOCK_FAILED:
- *unlock = false;
- if (flags & I915_SHRINK_ACTIVE &&
- mutex_lock_killable_nested(m, I915_MM_SHRINKER) == 0)
- *unlock = true;
- return *unlock;
-
- case MUTEX_TRYLOCK_SUCCESS:
- *unlock = true;
- return true;
- }
-
- BUG();
-}
-
-static void shrinker_unlock(struct drm_i915_private *i915, bool unlock)
-{
- if (!unlock)
- return;
-
- mutex_unlock(&i915->drm.struct_mutex);
-}
-
static bool swap_available(void)
{
return get_nr_swap_pages() > 0;
@@ -162,10 +128,6 @@ i915_gem_shrink(struct drm_i915_private *i915,
intel_wakeref_t wakeref = 0;
unsigned long count = 0;
unsigned long scanned = 0;
- bool unlock;
-
- if (!shrinker_lock(i915, shrink, &unlock))
- return 0;
/*
* When shrinking the active list, we should also consider active
@@ -275,8 +237,6 @@ i915_gem_shrink(struct drm_i915_private *i915,
if (shrink & I915_SHRINK_BOUND)
intel_runtime_pm_put(&i915->runtime_pm, wakeref);
- shrinker_unlock(i915, unlock);
-
if (nr_scanned)
*nr_scanned += scanned;
return count;
@@ -346,13 +306,9 @@ i915_gem_shrinker_scan(struct shrinker *shrinker, struct shrink_control *sc)
struct drm_i915_private *i915 =
container_of(shrinker, struct drm_i915_private, mm.shrinker);
unsigned long freed;
- bool unlock;
sc->nr_scanned = 0;
- if (!shrinker_lock(i915, 0, &unlock))
- return SHRINK_STOP;
-
freed = i915_gem_shrink(i915,
sc->nr_to_scan,
&sc->nr_scanned,
@@ -373,8 +329,6 @@ i915_gem_shrinker_scan(struct shrinker *shrinker, struct shrink_control *sc)
}
}
- shrinker_unlock(i915, unlock);
-
return sc->nr_scanned ? freed : SHRINK_STOP;
}
@@ -426,10 +380,6 @@ i915_gem_shrinker_vmap(struct notifier_block *nb, unsigned long event, void *ptr
struct i915_vma *vma, *next;
unsigned long freed_pages = 0;
intel_wakeref_t wakeref;
- bool unlock;
-
- if (!shrinker_lock(i915, 0, &unlock))
- return NOTIFY_DONE;
with_intel_runtime_pm(&i915->runtime_pm, wakeref)
freed_pages += i915_gem_shrink(i915, -1UL, NULL,
@@ -446,15 +396,11 @@ i915_gem_shrinker_vmap(struct notifier_block *nb, unsigned long event, void *ptr
if (!vma->iomap || i915_vma_is_active(vma))
continue;
- mutex_unlock(&i915->ggtt.vm.mutex);
if (i915_vma_unbind(vma) == 0)
freed_pages += count;
- mutex_lock(&i915->ggtt.vm.mutex);
}
mutex_unlock(&i915->ggtt.vm.mutex);
- shrinker_unlock(i915, unlock);
-
*(unsigned long *)ptr += freed_pages;
return NOTIFY_DONE;
}
@@ -497,22 +443,9 @@ void i915_gem_shrinker_taints_mutex(struct drm_i915_private *i915,
fs_reclaim_acquire(GFP_KERNEL);
- /*
- * As we invariably rely on the struct_mutex within the shrinker,
- * but have a complicated recursion dance, taint all the mutexes used
- * within the shrinker with the struct_mutex. For completeness, we
- * taint with all subclass of struct_mutex, even though we should
- * only need tainting by I915_MM_NORMAL to catch possible ABBA
- * deadlocks from using struct_mutex inside @mutex.
- */
- mutex_acquire(&i915->drm.struct_mutex.dep_map,
- I915_MM_SHRINKER, 0, _RET_IP_);
-
mutex_acquire(&mutex->dep_map, 0, 0, _RET_IP_);
mutex_release(&mutex->dep_map, 0, _RET_IP_);
- mutex_release(&i915->drm.struct_mutex.dep_map, 0, _RET_IP_);
-
fs_reclaim_release(GFP_KERNEL);
if (unlock)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
index 0d81de1461b4..158ddd6e735f 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
@@ -621,8 +621,6 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv
if (!drm_mm_initialized(&dev_priv->mm.stolen))
return NULL;
- lockdep_assert_held(&dev_priv->drm.struct_mutex);
-
DRM_DEBUG_DRIVER("creating preallocated stolen object: stolen_offset=%pa, gtt_offset=%pa, size=%pa\n",
&stolen_offset, >t_offset, &size);
@@ -674,11 +672,13 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv
* setting up the GTT space. The actual reservation will occur
* later.
*/
+ mutex_lock(&ggtt->vm.mutex);
ret = i915_gem_gtt_reserve(&ggtt->vm, &vma->node,
size, gtt_offset, obj->cache_level,
0);
if (ret) {
DRM_DEBUG_DRIVER("failed to allocate stolen GTT space\n");
+ mutex_unlock(&ggtt->vm.mutex);
goto err_pages;
}
@@ -688,7 +688,6 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv
set_bit(I915_VMA_GLOBAL_BIND_BIT, __i915_vma_flags(vma));
__i915_vma_set_map_and_fenceable(vma);
- mutex_lock(&ggtt->vm.mutex);
list_add_tail(&vma->vm_link, &ggtt->vm.bound_list);
mutex_unlock(&ggtt->vm.mutex);
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_tiling.c b/drivers/gpu/drm/i915/gem/i915_gem_tiling.c
index ca0c2f451742..32004401aa96 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_tiling.c
@@ -181,22 +181,25 @@ static int
i915_gem_object_fence_prepare(struct drm_i915_gem_object *obj,
int tiling_mode, unsigned int stride)
{
+ struct i915_ggtt *ggtt = &to_i915(obj->base.dev)->ggtt;
struct i915_vma *vma;
int ret;
if (tiling_mode == I915_TILING_NONE)
return 0;
+ mutex_lock(&ggtt->vm.mutex);
for_each_ggtt_vma(vma, obj) {
if (i915_vma_fence_prepare(vma, tiling_mode, stride))
continue;
ret = i915_vma_unbind(vma);
if (ret)
- return ret;
+ break;
}
+ mutex_unlock(&ggtt->vm.mutex);
- return 0;
+ return ret;
}
int
@@ -212,7 +215,6 @@ i915_gem_object_set_tiling(struct drm_i915_gem_object *obj,
GEM_BUG_ON(!i915_tiling_ok(obj, tiling, stride));
GEM_BUG_ON(!stride ^ (tiling == I915_TILING_NONE));
- lockdep_assert_held(&i915->drm.struct_mutex);
if ((tiling | stride) == obj->tiling_and_stride)
return 0;
@@ -364,12 +366,7 @@ i915_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
}
}
- err = mutex_lock_interruptible(&dev->struct_mutex);
- if (err)
- goto err;
-
err = i915_gem_object_set_tiling(obj, args->tiling_mode, args->stride);
- mutex_unlock(&dev->struct_mutex);
/* We have to maintain this existing ABI... */
args->stride = i915_gem_object_get_stride(obj);
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
index 74da35611d7c..cd36236e3faf 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
@@ -92,7 +92,6 @@ userptr_mn_invalidate_range_start(struct mmu_notifier *_mn,
struct i915_mmu_notifier *mn =
container_of(_mn, struct i915_mmu_notifier, mn);
struct interval_tree_node *it;
- struct mutex *unlock = NULL;
unsigned long end;
int ret = 0;
@@ -129,33 +128,13 @@ userptr_mn_invalidate_range_start(struct mmu_notifier *_mn,
}
spin_unlock(&mn->lock);
- if (!unlock) {
- unlock = &mn->mm->i915->drm.struct_mutex;
-
- switch (mutex_trylock_recursive(unlock)) {
- default:
- case MUTEX_TRYLOCK_FAILED:
- if (mutex_lock_killable_nested(unlock, I915_MM_SHRINKER)) {
- i915_gem_object_put(obj);
- return -EINTR;
- }
- /* fall through */
- case MUTEX_TRYLOCK_SUCCESS:
- break;
-
- case MUTEX_TRYLOCK_RECURSIVE:
- unlock = ERR_PTR(-EEXIST);
- break;
- }
- }
-
ret = i915_gem_object_unbind(obj,
I915_GEM_OBJECT_UNBIND_ACTIVE);
if (ret == 0)
ret = __i915_gem_object_put_pages(obj, I915_MM_SHRINKER);
i915_gem_object_put(obj);
if (ret)
- goto unlock;
+ return ret;
spin_lock(&mn->lock);
@@ -168,10 +147,6 @@ userptr_mn_invalidate_range_start(struct mmu_notifier *_mn,
}
spin_unlock(&mn->lock);
-unlock:
- if (!IS_ERR_OR_NULL(unlock))
- mutex_unlock(unlock);
-
return ret;
}
diff --git a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
index a0a272556289..5ef0a3b44d90 100644
--- a/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/gem/selftests/huge_pages.c
@@ -25,6 +25,17 @@ static const unsigned int page_sizes[] = {
I915_GTT_PAGE_SIZE_4K,
};
+static int unlocked_vma_unbind(struct i915_vma *vma)
+{
+ int ret;
+
+ mutex_lock(&vma->vm->mutex);
+ ret = i915_vma_unbind(vma);
+ mutex_unlock(&vma->vm->mutex);
+
+ return ret;
+}
+
static unsigned int get_largest_page_size(struct drm_i915_private *i915,
u64 rem)
{
@@ -333,7 +344,11 @@ static int igt_check_page_sizes(struct i915_vma *vma)
struct drm_i915_private *i915 = vma->vm->i915;
unsigned int supported = INTEL_INFO(i915)->page_sizes;
struct drm_i915_gem_object *obj = vma->obj;
- int err = 0;
+ int err;
+
+ err = i915_active_wait(&vma->active);
+ if (err)
+ return err;
if (!HAS_PAGE_SIZES(i915, vma->page_sizes.sg)) {
pr_err("unsupported page_sizes.sg=%u, supported=%u\n",
@@ -526,7 +541,7 @@ static int igt_mock_ppgtt_misaligned_dma(void *arg)
* pages.
*/
for (offset = 4096; offset < page_size; offset += 4096) {
- err = i915_vma_unbind(vma);
+ err = unlocked_vma_unbind(vma);
if (err) {
i915_vma_close(vma);
goto out_unpin;
@@ -941,7 +956,7 @@ static int __igt_write_huge(struct intel_context *ce,
if (IS_ERR(vma))
return PTR_ERR(vma);
- err = i915_vma_unbind(vma);
+ err = unlocked_vma_unbind(vma);
if (err)
goto out_vma_close;
@@ -1387,7 +1402,7 @@ static int igt_ppgtt_pin_update(void *arg)
goto out_unpin;
}
- err = i915_vma_bind(vma, I915_CACHE_NONE, PIN_UPDATE);
+ err = i915_vma_bind(vma, I915_CACHE_NONE, PIN_UPDATE, NULL);
if (err)
goto out_unpin;
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 1d27babff0ce..9c217dfe96a9 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
@@ -205,7 +205,6 @@ static int igt_partial_tiling(void *arg)
goto out;
}
- mutex_lock(&i915->drm.struct_mutex);
wakeref = intel_runtime_pm_get(&i915->runtime_pm);
if (1) {
@@ -318,7 +317,6 @@ next_tiling: ;
out_unlock:
intel_runtime_pm_put(&i915->runtime_pm, wakeref);
- mutex_unlock(&i915->drm.struct_mutex);
i915_gem_object_unpin_pages(obj);
out:
i915_gem_object_put(obj);
diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index d48ec9a76ed1..c2afffb94474 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -207,11 +207,12 @@ void intel_gt_flush_ggtt_writes(struct intel_gt *gt)
with_intel_runtime_pm(&i915->runtime_pm, wakeref) {
struct intel_uncore *uncore = gt->uncore;
+ unsigned long flags;
- spin_lock_irq(&uncore->lock);
+ spin_lock_irqsave(&uncore->lock, flags);
intel_uncore_posting_read_fw(uncore,
RING_HEAD(RENDER_RING_BASE));
- spin_unlock_irq(&uncore->lock);
+ spin_unlock_irqrestore(&uncore->lock, flags);
}
}
diff --git a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
index a0098fc35921..e53eea1050f8 100644
--- a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
+++ b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
@@ -1127,15 +1127,14 @@ static int evict_vma(void *data)
{
struct evict_vma *arg = data;
struct i915_address_space *vm = arg->vma->vm;
- struct drm_i915_private *i915 = vm->i915;
struct drm_mm_node evict = arg->vma->node;
int err;
complete(&arg->completion);
- mutex_lock(&i915->drm.struct_mutex);
+ mutex_lock(&vm->mutex);
err = i915_gem_evict_for_node(vm, &evict, 0);
- mutex_unlock(&i915->drm.struct_mutex);
+ mutex_unlock(&vm->mutex);
return err;
}
@@ -1143,39 +1142,33 @@ static int evict_vma(void *data)
static int evict_fence(void *data)
{
struct evict_vma *arg = data;
- struct drm_i915_private *i915 = arg->vma->vm->i915;
int err;
complete(&arg->completion);
- mutex_lock(&i915->drm.struct_mutex);
-
/* Mark the fence register as dirty to force the mmio update. */
err = i915_gem_object_set_tiling(arg->vma->obj, I915_TILING_Y, 512);
if (err) {
pr_err("Invalid Y-tiling settings; err:%d\n", err);
- goto out_unlock;
+ return err;
}
err = i915_vma_pin(arg->vma, 0, 0, PIN_GLOBAL | PIN_MAPPABLE);
if (err) {
pr_err("Unable to pin vma for Y-tiled fence; err:%d\n", err);
- goto out_unlock;
+ return err;
}
err = i915_vma_pin_fence(arg->vma);
i915_vma_unpin(arg->vma);
if (err) {
pr_err("Unable to pin Y-tiled fence; err:%d\n", err);
- goto out_unlock;
+ return err;
}
i915_vma_unpin_fence(arg->vma);
-out_unlock:
- mutex_unlock(&i915->drm.struct_mutex);
-
- return err;
+ return 0;
}
static int __igt_reset_evict_vma(struct intel_gt *gt,
diff --git a/drivers/gpu/drm/i915/gvt/aperture_gm.c b/drivers/gpu/drm/i915/gvt/aperture_gm.c
index 5ff2437b2998..d996bbc7ea59 100644
--- a/drivers/gpu/drm/i915/gvt/aperture_gm.c
+++ b/drivers/gpu/drm/i915/gvt/aperture_gm.c
@@ -61,14 +61,14 @@ static int alloc_gm(struct intel_vgpu *vgpu, bool high_gm)
flags = PIN_MAPPABLE;
}
- mutex_lock(&dev_priv->drm.struct_mutex);
+ mutex_lock(&dev_priv->ggtt.vm.mutex);
mmio_hw_access_pre(dev_priv);
ret = i915_gem_gtt_insert(&dev_priv->ggtt.vm, node,
size, I915_GTT_PAGE_SIZE,
I915_COLOR_UNEVICTABLE,
start, end, flags);
mmio_hw_access_post(dev_priv);
- mutex_unlock(&dev_priv->drm.struct_mutex);
+ mutex_unlock(&dev_priv->ggtt.vm.mutex);
if (ret)
gvt_err("fail to alloc %s gm space from host\n",
high_gm ? "high" : "low");
@@ -98,9 +98,9 @@ static int alloc_vgpu_gm(struct intel_vgpu *vgpu)
return 0;
out_free_aperture:
- mutex_lock(&dev_priv->drm.struct_mutex);
+ mutex_lock(&dev_priv->ggtt.vm.mutex);
drm_mm_remove_node(&vgpu->gm.low_gm_node);
- mutex_unlock(&dev_priv->drm.struct_mutex);
+ mutex_unlock(&dev_priv->ggtt.vm.mutex);
return ret;
}
@@ -108,10 +108,10 @@ static void free_vgpu_gm(struct intel_vgpu *vgpu)
{
struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
- mutex_lock(&dev_priv->drm.struct_mutex);
+ mutex_lock(&dev_priv->ggtt.vm.mutex);
drm_mm_remove_node(&vgpu->gm.low_gm_node);
drm_mm_remove_node(&vgpu->gm.high_gm_node);
- mutex_unlock(&dev_priv->drm.struct_mutex);
+ mutex_unlock(&dev_priv->ggtt.vm.mutex);
}
/**
diff --git a/drivers/gpu/drm/i915/i915_active.c b/drivers/gpu/drm/i915/i915_active.c
index 48e16ad93bbd..5e9f826ff132 100644
--- a/drivers/gpu/drm/i915/i915_active.c
+++ b/drivers/gpu/drm/i915/i915_active.c
@@ -142,6 +142,7 @@ __active_retire(struct i915_active *ref)
if (!retire)
return;
+ GEM_BUG_ON(rcu_access_pointer(ref->excl));
rbtree_postorder_for_each_entry_safe(it, n, &root, node) {
GEM_BUG_ON(i915_active_request_isset(&it->base));
kmem_cache_free(global.slab_cache, it);
@@ -241,6 +242,8 @@ void __i915_active_init(struct drm_i915_private *i915,
ref->flags = 0;
ref->active = active;
ref->retire = retire;
+
+ ref->excl = NULL;
ref->tree = RB_ROOT;
ref->cache = NULL;
init_llist_head(&ref->preallocated_barriers);
@@ -337,6 +340,45 @@ int i915_active_ref(struct i915_active *ref,
return err;
}
+static void excl_cb(struct dma_fence *f, struct dma_fence_cb *cb)
+{
+ struct i915_active *ref = container_of(cb, typeof(*ref), excl_cb);
+
+ RCU_INIT_POINTER(ref->excl, NULL);
+ dma_fence_put(f);
+
+ active_retire(ref);
+}
+
+void i915_active_set_exclusive(struct i915_active *ref, struct dma_fence *f)
+{
+ GEM_BUG_ON(i915_active_is_idle(ref));
+
+ dma_fence_get(f);
+
+ rcu_read_lock();
+ if (rcu_access_pointer(ref->excl)) {
+ struct dma_fence *old;
+
+ old = dma_fence_get_rcu_safe(&ref->excl);
+ if (old) {
+ if (dma_fence_remove_callback(old, &ref->excl_cb))
+ atomic_dec(&ref->count);
+ dma_fence_put(old);
+ }
+ }
+ rcu_read_unlock();
+
+ atomic_inc(&ref->count);
+ rcu_assign_pointer(ref->excl, f);
+
+ if (dma_fence_add_callback(f, &ref->excl_cb, excl_cb)) {
+ RCU_INIT_POINTER(ref->excl, NULL);
+ atomic_dec(&ref->count);
+ dma_fence_put(f);
+ }
+}
+
int i915_active_acquire(struct i915_active *ref)
{
int err;
@@ -395,6 +437,25 @@ void i915_active_ungrab(struct i915_active *ref)
__active_ungrab(ref);
}
+static int excl_wait(struct i915_active *ref)
+{
+ struct dma_fence *old;
+ int err = 0;
+
+ if (!rcu_access_pointer(ref->excl))
+ return 0;
+
+ rcu_read_lock();
+ old = dma_fence_get_rcu_safe(&ref->excl);
+ rcu_read_unlock();
+ if (old) {
+ err = dma_fence_wait(old, true);
+ dma_fence_put(old);
+ }
+
+ return err;
+}
+
int i915_active_wait(struct i915_active *ref)
{
struct active_node *it, *n;
@@ -415,6 +476,10 @@ int i915_active_wait(struct i915_active *ref)
return 0;
}
+ err = excl_wait(ref);
+ if (err)
+ goto out;
+
rbtree_postorder_for_each_entry_safe(it, n, &ref->tree, node) {
if (is_barrier(&it->base)) { /* unconnected idle-barrier */
err = -EBUSY;
@@ -426,6 +491,7 @@ int i915_active_wait(struct i915_active *ref)
break;
}
+out:
__active_retire(ref);
if (err)
return err;
diff --git a/drivers/gpu/drm/i915/i915_active.h b/drivers/gpu/drm/i915/i915_active.h
index f95058f99057..bc1c9d5d4f63 100644
--- a/drivers/gpu/drm/i915/i915_active.h
+++ b/drivers/gpu/drm/i915/i915_active.h
@@ -373,6 +373,8 @@ int i915_active_ref(struct i915_active *ref,
struct intel_timeline *tl,
struct i915_request *rq);
+void i915_active_set_exclusive(struct i915_active *ref, struct dma_fence *f);
+
int i915_active_wait(struct i915_active *ref);
int i915_request_await_active(struct i915_request *rq,
diff --git a/drivers/gpu/drm/i915/i915_active_types.h b/drivers/gpu/drm/i915/i915_active_types.h
index 1854e7d168c1..86e7a232ea3c 100644
--- a/drivers/gpu/drm/i915/i915_active_types.h
+++ b/drivers/gpu/drm/i915/i915_active_types.h
@@ -8,6 +8,7 @@
#define _I915_ACTIVE_TYPES_H_
#include <linux/atomic.h>
+#include <linux/dma-fence.h>
#include <linux/llist.h>
#include <linux/mutex.h>
#include <linux/rbtree.h>
@@ -51,6 +52,10 @@ struct i915_active {
struct mutex mutex;
atomic_t count;
+ /* Preallocated "exclusive" node */
+ struct dma_fence __rcu *excl;
+ struct dma_fence_cb excl_cb;
+
unsigned long flags;
#define I915_ACTIVE_GRAB_BIT 0
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index ec9a46c276de..85323cd08022 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -62,20 +62,31 @@
#include "intel_pm.h"
static int
-insert_mappable_node(struct i915_ggtt *ggtt,
- struct drm_mm_node *node, u32 size)
+insert_mappable_node(struct i915_ggtt *ggtt, struct drm_mm_node *node, u32 size)
{
+ int err;
+
+ err = mutex_lock_interruptible(&ggtt->vm.mutex);
+ if (err)
+ return err;
+
memset(node, 0, sizeof(*node));
- return drm_mm_insert_node_in_range(&ggtt->vm.mm, node,
- size, 0, I915_COLOR_UNEVICTABLE,
- 0, ggtt->mappable_end,
- DRM_MM_INSERT_LOW);
+ err = drm_mm_insert_node_in_range(&ggtt->vm.mm, node,
+ size, 0, I915_COLOR_UNEVICTABLE,
+ 0, ggtt->mappable_end,
+ DRM_MM_INSERT_LOW);
+
+ mutex_unlock(&ggtt->vm.mutex);
+
+ return err;
}
static void
-remove_mappable_node(struct drm_mm_node *node)
+remove_mappable_node(struct i915_ggtt *ggtt, struct drm_mm_node *node)
{
+ mutex_lock(&ggtt->vm.mutex);
drm_mm_remove_node(node);
+ mutex_unlock(&ggtt->vm.mutex);
}
int
@@ -87,7 +98,8 @@ i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
struct i915_vma *vma;
u64 pinned;
- mutex_lock(&ggtt->vm.mutex);
+ if (mutex_lock_interruptible(&ggtt->vm.mutex))
+ return -EINTR;
pinned = ggtt->vm.reserved;
list_for_each_entry(vma, &ggtt->vm.bound_list, vm_link)
@@ -109,8 +121,6 @@ int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
LIST_HEAD(still_in_list);
int ret = 0;
- lockdep_assert_held(&obj->base.dev->struct_mutex);
-
spin_lock(&obj->vma.lock);
while (!ret && (vma = list_first_entry_or_null(&obj->vma.list,
struct i915_vma,
@@ -120,8 +130,13 @@ int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
ret = -EBUSY;
if (flags & I915_GEM_OBJECT_UNBIND_ACTIVE ||
- !i915_vma_is_active(vma))
- ret = i915_vma_unbind(vma);
+ !i915_vma_is_active(vma)) {
+ ret = mutex_lock_interruptible(&vma->vm->mutex);
+ if (!ret) {
+ ret = i915_vma_unbind(vma);
+ mutex_unlock(&vma->vm->mutex);
+ }
+ }
spin_lock(&obj->vma.lock);
}
@@ -338,10 +353,6 @@ i915_gem_gtt_pread(struct drm_i915_gem_object *obj,
u64 remain, offset;
int ret;
- ret = mutex_lock_interruptible(&i915->drm.struct_mutex);
- if (ret)
- return ret;
-
wakeref = intel_runtime_pm_get(&i915->runtime_pm);
vma = ERR_PTR(-ENODEV);
if (!i915_gem_object_is_tiled(obj))
@@ -355,12 +366,10 @@ i915_gem_gtt_pread(struct drm_i915_gem_object *obj,
} else {
ret = insert_mappable_node(ggtt, &node, PAGE_SIZE);
if (ret)
- goto out_unlock;
+ goto out_rpm;
GEM_BUG_ON(!node.allocated);
}
- mutex_unlock(&i915->drm.struct_mutex);
-
ret = i915_gem_object_lock_interruptible(obj);
if (ret)
goto out_unpin;
@@ -414,17 +423,14 @@ i915_gem_gtt_pread(struct drm_i915_gem_object *obj,
i915_gem_object_unlock_fence(obj, fence);
out_unpin:
- mutex_lock(&i915->drm.struct_mutex);
if (node.allocated) {
ggtt->vm.clear_range(&ggtt->vm, node.start, node.size);
- remove_mappable_node(&node);
+ remove_mappable_node(ggtt, &node);
} else {
i915_vma_unpin(vma);
}
-out_unlock:
+out_rpm:
intel_runtime_pm_put(&i915->runtime_pm, wakeref);
- mutex_unlock(&i915->drm.struct_mutex);
-
return ret;
}
@@ -531,10 +537,6 @@ i915_gem_gtt_pwrite_fast(struct drm_i915_gem_object *obj,
void __user *user_data;
int ret;
- ret = mutex_lock_interruptible(&i915->drm.struct_mutex);
- if (ret)
- return ret;
-
if (i915_gem_object_has_struct_page(obj)) {
/*
* Avoid waking the device up if we can fallback, as
@@ -544,10 +546,8 @@ i915_gem_gtt_pwrite_fast(struct drm_i915_gem_object *obj,
* using the cache bypass of indirect GGTT access.
*/
wakeref = intel_runtime_pm_get_if_in_use(rpm);
- if (!wakeref) {
- ret = -EFAULT;
- goto out_unlock;
- }
+ if (!wakeref)
+ return -EFAULT;
} else {
/* No backing pages, no fallback, we must force GGTT access */
wakeref = intel_runtime_pm_get(rpm);
@@ -569,8 +569,6 @@ i915_gem_gtt_pwrite_fast(struct drm_i915_gem_object *obj,
GEM_BUG_ON(!node.allocated);
}
- mutex_unlock(&i915->drm.struct_mutex);
-
ret = i915_gem_object_lock_interruptible(obj);
if (ret)
goto out_unpin;
@@ -634,18 +632,15 @@ i915_gem_gtt_pwrite_fast(struct drm_i915_gem_object *obj,
i915_gem_object_unlock_fence(obj, fence);
out_unpin:
- mutex_lock(&i915->drm.struct_mutex);
intel_gt_flush_ggtt_writes(ggtt->vm.gt);
if (node.allocated) {
ggtt->vm.clear_range(&ggtt->vm, node.start, node.size);
- remove_mappable_node(&node);
+ remove_mappable_node(ggtt, &node);
} else {
i915_vma_unpin(vma);
}
out_rpm:
intel_runtime_pm_put(rpm, wakeref);
-out_unlock:
- mutex_unlock(&i915->drm.struct_mutex);
return ret;
}
@@ -967,8 +962,6 @@ i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
struct i915_vma *vma;
int ret;
- lockdep_assert_held(&obj->base.dev->struct_mutex);
-
if (flags & PIN_MAPPABLE &&
(!view || view->type == I915_GGTT_VIEW_NORMAL)) {
/* If the required space is larger than the available
@@ -1022,7 +1015,9 @@ i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
i915_ggtt_offset(vma), alignment,
!!(flags & PIN_MAPPABLE),
i915_vma_is_map_and_fenceable(vma));
+ mutex_lock(&vma->vm->mutex);
ret = i915_vma_unbind(vma);
+ mutex_unlock(&vma->vm->mutex);
if (ret)
return ERR_PTR(ret);
}
@@ -1320,7 +1315,9 @@ static int __intel_engines_record_defaults(struct drm_i915_private *i915)
* from the GTT to prevent such accidents and reclaim the
* space.
*/
+ mutex_lock(&state->vm->mutex);
err = i915_vma_unbind(state);
+ mutex_unlock(&state->vm->mutex);
if (err)
goto out;
diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
index 52c86c6e0673..722b03af3892 100644
--- a/drivers/gpu/drm/i915/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/i915_gem_evict.c
@@ -47,8 +47,7 @@ static int ggtt_flush(struct drm_i915_private *i915)
* bound by their active reference.
*/
return i915_gem_wait_for_idle(i915,
- I915_WAIT_INTERRUPTIBLE |
- I915_WAIT_LOCKED,
+ I915_WAIT_INTERRUPTIBLE,
MAX_SCHEDULE_TIMEOUT);
}
@@ -104,7 +103,7 @@ i915_gem_evict_something(struct i915_address_space *vm,
struct i915_vma *active;
int ret;
- lockdep_assert_held(&vm->i915->drm.struct_mutex);
+ lockdep_assert_held(&vm->mutex);
trace_i915_gem_evict(vm, min_size, alignment, flags);
/*
@@ -127,15 +126,6 @@ i915_gem_evict_something(struct i915_address_space *vm,
min_size, alignment, cache_level,
start, end, mode);
- /*
- * Retire before we search the active list. Although we have
- * reasonable accuracy in our retirement lists, we may have
- * a stray pin (preventing eviction) that can only be resolved by
- * retiring.
- */
- if (!(flags & PIN_NONBLOCK))
- i915_retire_requests(dev_priv);
-
search_again:
active = NULL;
INIT_LIST_HEAD(&eviction_list);
@@ -269,7 +259,7 @@ int i915_gem_evict_for_node(struct i915_address_space *vm,
bool check_color;
int ret = 0;
- lockdep_assert_held(&vm->i915->drm.struct_mutex);
+ lockdep_assert_held(&vm->mutex);
GEM_BUG_ON(!IS_ALIGNED(start, I915_GTT_PAGE_SIZE));
GEM_BUG_ON(!IS_ALIGNED(end, I915_GTT_PAGE_SIZE));
@@ -375,7 +365,7 @@ int i915_gem_evict_vm(struct i915_address_space *vm)
struct i915_vma *vma, *next;
int ret;
- lockdep_assert_held(&vm->i915->drm.struct_mutex);
+ lockdep_assert_held(&vm->mutex);
trace_i915_gem_evict_vm(vm);
/* Switch back to the default context in order to unpin
@@ -390,7 +380,6 @@ int i915_gem_evict_vm(struct i915_address_space *vm)
}
INIT_LIST_HEAD(&eviction_list);
- mutex_lock(&vm->mutex);
list_for_each_entry(vma, &vm->bound_list, vm_link) {
if (i915_vma_is_pinned(vma))
continue;
@@ -398,7 +387,6 @@ int i915_gem_evict_vm(struct i915_address_space *vm)
__i915_vma_pin(vma);
list_add(&vma->evict_link, &eviction_list);
}
- mutex_unlock(&vm->mutex);
ret = 0;
list_for_each_entry_safe(vma, next, &eviction_list, evict_link) {
diff --git a/drivers/gpu/drm/i915/i915_gem_fence_reg.c b/drivers/gpu/drm/i915/i915_gem_fence_reg.c
index 615a9f4ef30c..1e93f2aafc80 100644
--- a/drivers/gpu/drm/i915/i915_gem_fence_reg.c
+++ b/drivers/gpu/drm/i915/i915_gem_fence_reg.c
@@ -331,13 +331,15 @@ static struct i915_fence_reg *fence_find(struct drm_i915_private *i915)
return ERR_PTR(-EDEADLK);
}
-static int __i915_vma_pin_fence(struct i915_vma *vma)
+int __i915_vma_pin_fence(struct i915_vma *vma)
{
struct i915_ggtt *ggtt = i915_vm_to_ggtt(vma->vm);
struct i915_fence_reg *fence;
struct i915_vma *set = i915_gem_object_is_tiled(vma->obj) ? vma : NULL;
int err;
+ lockdep_assert_held(&vma->vm->mutex);
+
/* Just update our place in the LRU if our fence is getting reused. */
if (vma->fence) {
fence = vma->fence;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 342a84566e61..8f742f3eec60 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -144,16 +144,18 @@ static void gmch_ggtt_invalidate(struct i915_ggtt *ggtt)
static int ppgtt_bind_vma(struct i915_vma *vma,
enum i915_cache_level cache_level,
- u32 unused)
+ u32 flags)
{
u32 pte_flags;
int err;
- if (!i915_vma_is_bound(vma, I915_VMA_LOCAL_BIND)) {
+ if (flags & I915_VMA_ALLOC) {
err = vma->vm->allocate_va_range(vma->vm,
vma->node.start, vma->size);
if (err)
return err;
+
+ set_bit(I915_VMA_ALLOC_BIT, __i915_vma_flags(vma));
}
/* Applicable to VLV, and gen8+ */
@@ -161,6 +163,7 @@ static int ppgtt_bind_vma(struct i915_vma *vma,
if (i915_gem_object_is_readonly(vma->obj))
pte_flags |= PTE_READ_ONLY;
+ GEM_BUG_ON(!test_bit(I915_VMA_ALLOC_BIT, __i915_vma_flags(vma)));
vma->vm->insert_entries(vma->vm, vma, cache_level, pte_flags);
wmb();
@@ -169,7 +172,8 @@ static int ppgtt_bind_vma(struct i915_vma *vma,
static void ppgtt_unbind_vma(struct i915_vma *vma)
{
- vma->vm->clear_range(vma->vm, vma->node.start, vma->size);
+ if (test_and_clear_bit(I915_VMA_ALLOC_BIT, __i915_vma_flags(vma)))
+ vma->vm->clear_range(vma->vm, vma->node.start, vma->size);
}
static int ppgtt_set_pages(struct i915_vma *vma)
@@ -497,15 +501,25 @@ static void i915_address_space_fini(struct i915_address_space *vm)
mutex_destroy(&vm->mutex);
}
-static void ppgtt_destroy_vma(struct i915_address_space *vm)
+void __i915_vm_close(struct i915_address_space *vm)
{
struct i915_vma *vma, *vn;
- mutex_lock(&vm->i915->drm.struct_mutex);
- list_for_each_entry_safe(vma, vn, &vm->bound_list, vm_link)
+ mutex_lock(&vm->mutex);
+ list_for_each_entry_safe(vma, vn, &vm->bound_list, vm_link) {
+ struct drm_i915_gem_object *obj = vma->obj;
+
+ if (!kref_get_unless_zero(&obj->base.refcount))
+ continue;
+
+ atomic_and(~I915_VMA_PIN_MASK, &vma->flags);
+ WARN_ON(i915_vma_unbind(vma));
i915_vma_destroy(vma);
+
+ i915_gem_object_put(obj);
+ }
GEM_BUG_ON(!list_empty(&vm->bound_list));
- mutex_unlock(&vm->i915->drm.struct_mutex);
+ mutex_unlock(&vm->mutex);
}
static void __i915_vm_release(struct work_struct *work)
@@ -513,8 +527,6 @@ static void __i915_vm_release(struct work_struct *work)
struct i915_address_space *vm =
container_of(work, struct i915_address_space, rcu.work);
- ppgtt_destroy_vma(vm);
-
vm->cleanup(vm);
i915_address_space_fini(vm);
@@ -529,7 +541,6 @@ void i915_vm_release(struct kref *kref)
GEM_BUG_ON(i915_is_ggtt(vm));
trace_i915_ppgtt_release(vm);
- vm->closed = true;
queue_rcu_work(vm->i915->wq, &vm->rcu);
}
@@ -537,6 +548,7 @@ static void i915_address_space_init(struct i915_address_space *vm, int subclass)
{
kref_init(&vm->ref);
INIT_RCU_WORK(&vm->rcu, __i915_vm_release);
+ atomic_set(&vm->open, 1);
/*
* The vm->mutex must be reclaim safe (for use in the shrinker).
@@ -1774,12 +1786,8 @@ static void gen6_ppgtt_free_pd(struct gen6_ppgtt *ppgtt)
static void gen6_ppgtt_cleanup(struct i915_address_space *vm)
{
struct gen6_ppgtt *ppgtt = to_gen6_ppgtt(i915_vm_to_ppgtt(vm));
- struct drm_i915_private *i915 = vm->i915;
- /* FIXME remove the struct_mutex to bring the locking under control */
- mutex_lock(&i915->drm.struct_mutex);
i915_vma_destroy(ppgtt->vma);
- mutex_unlock(&i915->drm.struct_mutex);
gen6_ppgtt_free_pd(ppgtt);
free_scratch(vm);
@@ -1867,7 +1875,7 @@ static struct i915_vma *pd_vma_create(struct gen6_ppgtt *ppgtt, int size)
i915_active_init(i915, &vma->active, NULL, NULL);
- vma->vm = &ggtt->vm;
+ vma->vm = i915_vm_get(&ggtt->vm);
vma->ops = &pd_vma_ops;
vma->private = ppgtt;
@@ -1887,7 +1895,7 @@ int gen6_ppgtt_pin(struct i915_ppgtt *base)
struct gen6_ppgtt *ppgtt = to_gen6_ppgtt(base);
int err;
- GEM_BUG_ON(ppgtt->base.vm.closed);
+ GEM_BUG_ON(!atomic_read(&ppgtt->base.vm.open));
/*
* Workaround the limited maximum vma->pin_count and the aliasing_ppgtt
@@ -2463,14 +2471,18 @@ static int aliasing_gtt_bind_vma(struct i915_vma *vma,
if (flags & I915_VMA_LOCAL_BIND) {
struct i915_ppgtt *alias = i915_vm_to_ggtt(vma->vm)->alias;
- if (!i915_vma_is_bound(vma, I915_VMA_LOCAL_BIND)) {
+ if (flags & I915_VMA_ALLOC) {
ret = alias->vm.allocate_va_range(&alias->vm,
vma->node.start,
vma->size);
if (ret)
return ret;
+
+ set_bit(I915_VMA_ALLOC_BIT, __i915_vma_flags(vma));
}
+ GEM_BUG_ON(!test_bit(I915_VMA_ALLOC_BIT,
+ __i915_vma_flags(vma)));
alias->vm.insert_entries(&alias->vm, vma,
cache_level, pte_flags);
}
@@ -2600,22 +2612,16 @@ static int init_aliasing_ppgtt(struct i915_ggtt *ggtt)
static void fini_aliasing_ppgtt(struct i915_ggtt *ggtt)
{
- struct drm_i915_private *i915 = ggtt->vm.i915;
struct i915_ppgtt *ppgtt;
- mutex_lock(&i915->drm.struct_mutex);
-
ppgtt = fetch_and_zero(&ggtt->alias);
if (!ppgtt)
- goto out;
+ return;
i915_vm_put(&ppgtt->vm);
ggtt->vm.vma_ops.bind_vma = ggtt_bind_vma;
ggtt->vm.vma_ops.unbind_vma = ggtt_unbind_vma;
-
-out:
- mutex_unlock(&i915->drm.struct_mutex);
}
static int ggtt_reserve_guc_top(struct i915_ggtt *ggtt)
@@ -2732,15 +2738,14 @@ int i915_init_ggtt(struct drm_i915_private *i915)
static void ggtt_cleanup_hw(struct i915_ggtt *ggtt)
{
- struct drm_i915_private *i915 = ggtt->vm.i915;
struct i915_vma *vma, *vn;
- ggtt->vm.closed = true;
+ atomic_set(&ggtt->vm.open, 0);
rcu_barrier(); /* flush the RCU'ed__i915_vm_release */
- flush_workqueue(i915->wq);
+ flush_workqueue(ggtt->vm.i915->wq);
- mutex_lock(&i915->drm.struct_mutex);
+ mutex_lock(&ggtt->vm.mutex);
list_for_each_entry_safe(vma, vn, &ggtt->vm.bound_list, vm_link)
WARN_ON(i915_vma_unbind(vma));
@@ -2749,15 +2754,12 @@ static void ggtt_cleanup_hw(struct i915_ggtt *ggtt)
drm_mm_remove_node(&ggtt->error_capture);
ggtt_release_guc_top(ggtt);
-
- if (drm_mm_initialized(&ggtt->vm.mm)) {
- intel_vgt_deballoon(ggtt);
- i915_address_space_fini(&ggtt->vm);
- }
+ intel_vgt_deballoon(ggtt);
ggtt->vm.cleanup(&ggtt->vm);
- mutex_unlock(&i915->drm.struct_mutex);
+ mutex_unlock(&ggtt->vm.mutex);
+ i915_address_space_fini(&ggtt->vm);
arch_phys_wc_del(ggtt->mtrr);
io_mapping_fini(&ggtt->iomap);
@@ -3186,9 +3188,6 @@ int i915_ggtt_probe_hw(struct drm_i915_private *i915)
static int ggtt_init_hw(struct i915_ggtt *ggtt)
{
struct drm_i915_private *i915 = ggtt->vm.i915;
- int ret = 0;
-
- mutex_lock(&i915->drm.struct_mutex);
i915_address_space_init(&ggtt->vm, VM_CLASS_GGTT);
@@ -3204,18 +3203,14 @@ static int ggtt_init_hw(struct i915_ggtt *ggtt)
ggtt->gmadr.start,
ggtt->mappable_end)) {
ggtt->vm.cleanup(&ggtt->vm);
- ret = -EIO;
- goto out;
+ return -EIO;
}
ggtt->mtrr = arch_phys_wc_add(ggtt->gmadr.start, ggtt->mappable_end);
i915_ggtt_init_fences(ggtt);
-out:
- mutex_unlock(&i915->drm.struct_mutex);
-
- return ret;
+ return 0;
}
/**
@@ -3287,6 +3282,7 @@ static void ggtt_restore_mappings(struct i915_ggtt *ggtt)
{
struct i915_vma *vma, *vn;
bool flush = false;
+ int open;
intel_gt_check_and_clear_faults(ggtt->vm.gt);
@@ -3294,7 +3290,9 @@ static void ggtt_restore_mappings(struct i915_ggtt *ggtt)
/* First fill our portion of the GTT with scratch pages */
ggtt->vm.clear_range(&ggtt->vm, 0, ggtt->vm.total);
- ggtt->vm.closed = true; /* skip rewriting PTE on VMA unbind */
+
+ /* Skip rewriting PTE on VMA unbind. */
+ open = atomic_xchg(&ggtt->vm.open, 0);
/* clflush objects bound into the GGTT and rebind them. */
list_for_each_entry_safe(vma, vn, &ggtt->vm.bound_list, vm_link) {
@@ -3303,24 +3301,19 @@ static void ggtt_restore_mappings(struct i915_ggtt *ggtt)
if (!i915_vma_is_bound(vma, I915_VMA_GLOBAL_BIND))
continue;
- mutex_unlock(&ggtt->vm.mutex);
-
if (!i915_vma_unbind(vma))
- goto lock;
+ continue;
WARN_ON(i915_vma_bind(vma,
obj ? obj->cache_level : 0,
- PIN_UPDATE));
+ PIN_UPDATE, NULL));
if (obj) { /* only used during resume => exclusive access */
flush |= fetch_and_zero(&obj->write_domain);
obj->read_domains |= I915_GEM_DOMAIN_GTT;
}
-
-lock:
- mutex_lock(&ggtt->vm.mutex);
}
- ggtt->vm.closed = false;
+ atomic_set(&ggtt->vm.open, open);
ggtt->invalidate(ggtt);
mutex_unlock(&ggtt->vm.mutex);
@@ -3712,7 +3705,8 @@ int i915_gem_gtt_insert(struct i915_address_space *vm,
u64 offset;
int err;
- lockdep_assert_held(&vm->i915->drm.struct_mutex);
+ lockdep_assert_held(&vm->mutex);
+
GEM_BUG_ON(!size);
GEM_BUG_ON(!IS_ALIGNED(size, I915_GTT_PAGE_SIZE));
GEM_BUG_ON(alignment && !is_power_of_2(alignment));
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 0f14722fd163..0516c4d110bc 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -307,7 +307,7 @@ struct i915_address_space {
unsigned int bind_alloc;
- bool closed;
+ atomic_t open;
struct mutex mutex; /* protects vma and our lists */
#define VM_CLASS_GGTT 0
@@ -574,6 +574,35 @@ static inline void i915_vm_put(struct i915_address_space *vm)
kref_put(&vm->ref, i915_vm_release);
}
+static inline struct i915_address_space *
+i915_vm_open(struct i915_address_space *vm)
+{
+ GEM_BUG_ON(!atomic_read(&vm->open));
+ atomic_inc(&vm->open);
+ return i915_vm_get(vm);
+}
+
+static inline bool
+i915_vm_tryopen(struct i915_address_space *vm)
+{
+ if (atomic_add_unless(&vm->open, 1, 0))
+ return i915_vm_get(vm);
+
+ return false;
+}
+
+void __i915_vm_close(struct i915_address_space *vm);
+
+static inline void
+i915_vm_close(struct i915_address_space *vm)
+{
+ GEM_BUG_ON(!atomic_read(&vm->open));
+ if (atomic_dec_and_test(&vm->open))
+ __i915_vm_close(vm);
+
+ i915_vm_put(vm);
+}
+
int gen6_ppgtt_pin(struct i915_ppgtt *base);
void gen6_ppgtt_unpin(struct i915_ppgtt *base);
void gen6_ppgtt_unpin_all(struct i915_ppgtt *base);
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index e42b86827d6b..e6aa56d82f9b 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1204,15 +1204,10 @@ static int i915_oa_read(struct i915_perf_stream *stream,
static struct intel_context *oa_pin_context(struct i915_perf_stream *stream)
{
struct i915_gem_engines_iter it;
- struct drm_i915_private *i915 = stream->dev_priv;
struct i915_gem_context *ctx = stream->ctx;
struct intel_context *ce;
int err;
- err = i915_mutex_lock_interruptible(&i915->drm);
- if (err)
- return ERR_PTR(err);
-
for_each_gem_engine(ce, i915_gem_context_lock_engines(ctx), it) {
if (ce->engine->class != RENDER_CLASS)
continue;
@@ -1229,10 +1224,6 @@ static struct intel_context *oa_pin_context(struct i915_perf_stream *stream)
}
i915_gem_context_unlock_engines(ctx);
- mutex_unlock(&i915->drm.struct_mutex);
- if (err)
- return ERR_PTR(err);
-
return stream->pinned_ctx;
}
@@ -1347,15 +1338,9 @@ static void oa_put_render_ctx_id(struct i915_perf_stream *stream)
static void
free_oa_buffer(struct i915_perf_stream *stream)
{
- struct drm_i915_private *i915 = stream->dev_priv;
-
- mutex_lock(&i915->drm.struct_mutex);
-
i915_vma_unpin_and_release(&stream->oa_buffer.vma,
I915_VMA_RELEASE_MAP);
- mutex_unlock(&i915->drm.struct_mutex);
-
stream->oa_buffer.vaddr = NULL;
}
@@ -1510,18 +1495,13 @@ static int alloc_oa_buffer(struct i915_perf_stream *stream)
if (WARN_ON(stream->oa_buffer.vma))
return -ENODEV;
- ret = i915_mutex_lock_interruptible(&dev_priv->drm);
- if (ret)
- return ret;
-
BUILD_BUG_ON_NOT_POWER_OF_2(OA_BUFFER_SIZE);
BUILD_BUG_ON(OA_BUFFER_SIZE < SZ_128K || OA_BUFFER_SIZE > SZ_16M);
bo = i915_gem_object_create_shmem(dev_priv, OA_BUFFER_SIZE);
if (IS_ERR(bo)) {
DRM_ERROR("Failed to allocate OA buffer\n");
- ret = PTR_ERR(bo);
- goto unlock;
+ return PTR_ERR(bo);
}
i915_gem_object_set_cache_coherency(bo, I915_CACHE_LLC);
@@ -1545,7 +1525,7 @@ static int alloc_oa_buffer(struct i915_perf_stream *stream)
i915_ggtt_offset(stream->oa_buffer.vma),
stream->oa_buffer.vaddr);
- goto unlock;
+ return 0;
err_unpin:
__i915_vma_unpin(vma);
@@ -1556,8 +1536,6 @@ static int alloc_oa_buffer(struct i915_perf_stream *stream)
stream->oa_buffer.vaddr = NULL;
stream->oa_buffer.vma = NULL;
-unlock:
- mutex_unlock(&dev_priv->drm.struct_mutex);
return ret;
}
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index 6c4aa9471af3..f7b20fd945a9 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -32,6 +32,7 @@
#include "i915_drv.h"
#include "i915_globals.h"
+#include "i915_sw_fence_work.h"
#include "i915_trace.h"
#include "i915_vma.h"
@@ -110,7 +111,7 @@ vma_create(struct drm_i915_gem_object *obj,
if (vma == NULL)
return ERR_PTR(-ENOMEM);
- vma->vm = vm;
+ vma->vm = i915_vm_get(vm);
vma->ops = &vm->vma_ops;
vma->obj = obj;
vma->resv = obj->base.resv;
@@ -261,8 +262,6 @@ vma_lookup(struct drm_i915_gem_object *obj,
* Once created, the VMA is kept until either the object is freed, or the
* address space is closed.
*
- * Must be called with struct_mutex held.
- *
* Returns the vma, or an error pointer.
*/
struct i915_vma *
@@ -273,7 +272,7 @@ i915_vma_instance(struct drm_i915_gem_object *obj,
struct i915_vma *vma;
GEM_BUG_ON(view && !i915_is_ggtt(vm));
- GEM_BUG_ON(vm->closed);
+ GEM_BUG_ON(!atomic_read(&vm->open));
spin_lock(&obj->vma.lock);
vma = vma_lookup(obj, vm, view);
@@ -287,18 +286,63 @@ i915_vma_instance(struct drm_i915_gem_object *obj,
return vma;
}
+struct i915_vma_work {
+ struct dma_fence_work base;
+ struct i915_vma *vma;
+ enum i915_cache_level cache_level;
+ unsigned int flags;
+};
+
+static int __vma_bind(struct dma_fence_work *work)
+{
+ struct i915_vma_work *vw = container_of(work, typeof(*vw), base);
+ struct i915_vma *vma = vw->vma;
+ int err;
+
+ err = vma->ops->bind_vma(vma, vw->cache_level, vw->flags);
+ if (err)
+ atomic_or(I915_VMA_ERROR, &vma->flags);
+
+ if (vma->obj)
+ atomic_dec(&vma->obj->mm.pages_pin_count);
+
+ return err;
+}
+
+static const struct dma_fence_work_ops bind_ops = {
+ .name = "bind",
+ .work = __vma_bind,
+};
+
+struct i915_vma_work *i915_vma_work(void)
+{
+ struct i915_vma_work *vw;
+
+ vw = kzalloc(sizeof(*vw), GFP_KERNEL);
+ if (!vw)
+ return NULL;
+
+ dma_fence_work_init(&vw->base, &bind_ops);
+ vw->base.dma.error = -EAGAIN; /* disable the worker by default */
+
+ return vw;
+}
+
/**
* i915_vma_bind - Sets up PTEs for an VMA in it's corresponding address space.
* @vma: VMA to map
* @cache_level: mapping cache level
* @flags: flags like global or local mapping
+ * @work: preallocated worker for allocating and binding the PTE
*
* DMA addresses are taken from the scatter-gather table of this object (or of
* this VMA in case of non-default GGTT views) and PTE entries set up.
* Note that DMA addresses are also the only part of the SG table we care about.
*/
-int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
- u32 flags)
+int i915_vma_bind(struct i915_vma *vma,
+ enum i915_cache_level cache_level,
+ u32 flags,
+ struct i915_vma_work *work)
{
u32 bind_flags;
u32 vma_flags;
@@ -315,11 +359,8 @@ int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
if (GEM_DEBUG_WARN_ON(!flags))
return -EINVAL;
- bind_flags = 0;
- if (flags & PIN_GLOBAL)
- bind_flags |= I915_VMA_GLOBAL_BIND;
- if (flags & PIN_USER)
- bind_flags |= I915_VMA_LOCAL_BIND;
+ bind_flags = flags;
+ bind_flags &= I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND;
vma_flags = atomic_read(&vma->flags);
vma_flags &= I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND;
@@ -333,9 +374,29 @@ int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
GEM_BUG_ON(!vma->pages);
trace_i915_vma_bind(vma, bind_flags);
- ret = vma->ops->bind_vma(vma, cache_level, bind_flags);
- if (ret)
- return ret;
+ if (work && (bind_flags & ~vma_flags) & vma->vm->bind_alloc) {
+ work->vma = vma;
+ work->cache_level = cache_level;
+ work->flags = bind_flags | I915_VMA_ALLOC;
+
+ if (!i915_vma_trylock(vma))
+ return -EAGAIN;
+
+ dma_fence_work_chain(&work->base, dma_resv_get_excl(vma->resv));
+ dma_resv_add_excl_fence(vma->resv, &work->base.dma);
+ i915_vma_unlock(vma);
+
+ i915_active_set_exclusive(&vma->active, &work->base.dma);
+ work->base.dma.error = 0; /* enable the queue_work() */
+
+ if (vma->obj)
+ atomic_inc(&vma->obj->mm.pages_pin_count);
+ } else {
+ GEM_BUG_ON((bind_flags & ~vma_flags) & vma->vm->bind_alloc);
+ ret = vma->ops->bind_vma(vma, cache_level, bind_flags);
+ if (ret)
+ return ret;
+ }
atomic_or(bind_flags, &vma->flags);
return 0;
@@ -348,9 +409,7 @@ void __iomem *i915_vma_pin_iomap(struct i915_vma *vma)
/* Access through the GTT requires the device to be awake. */
assert_rpm_wakelock_held(&vma->vm->i915->runtime_pm);
-
- lockdep_assert_held(&vma->vm->i915->drm.struct_mutex);
- if (WARN_ON(!i915_vma_is_map_and_fenceable(vma))) {
+ if (GEM_WARN_ON(!i915_vma_is_map_and_fenceable(vma))) {
err = -ENODEV;
goto err;
}
@@ -368,7 +427,8 @@ void __iomem *i915_vma_pin_iomap(struct i915_vma *vma)
goto err;
}
- vma->iomap = ptr;
+ if (unlikely(cmpxchg(&vma->iomap, NULL, ptr)))
+ io_mapping_unmap(ptr);
}
__i915_vma_pin(vma);
@@ -388,18 +448,12 @@ void __iomem *i915_vma_pin_iomap(struct i915_vma *vma)
void i915_vma_flush_writes(struct i915_vma *vma)
{
- if (!i915_vma_has_ggtt_write(vma))
- return;
-
- intel_gt_flush_ggtt_writes(vma->vm->gt);
-
- i915_vma_unset_ggtt_write(vma);
+ if (i915_vma_unset_ggtt_write(vma))
+ intel_gt_flush_ggtt_writes(vma->vm->gt);
}
void i915_vma_unpin_iomap(struct i915_vma *vma)
{
- lockdep_assert_held(&vma->vm->i915->drm.struct_mutex);
-
GEM_BUG_ON(vma->iomap == NULL);
i915_vma_flush_writes(vma);
@@ -538,7 +592,6 @@ static void assert_bind_count(const struct drm_i915_gem_object *obj)
static int
i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
{
- struct drm_i915_private *dev_priv = vma->vm->i915;
unsigned int cache_level;
u64 start, end;
int ret;
@@ -564,7 +617,7 @@ i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
end = vma->vm->total;
if (flags & PIN_MAPPABLE)
- end = min_t(u64, end, dev_priv->ggtt.mappable_end);
+ end = min_t(u64, end, i915_vm_to_ggtt(vma->vm)->mappable_end);
if (flags & PIN_ZONE_4G)
end = min_t(u64, end, (1ULL << 32) - I915_GTT_PAGE_SIZE);
GEM_BUG_ON(!IS_ALIGNED(end, I915_GTT_PAGE_SIZE));
@@ -580,35 +633,21 @@ i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
return -ENOSPC;
}
- if (vma->obj) {
- ret = i915_gem_object_pin_pages(vma->obj);
- if (ret)
- return ret;
-
+ cache_level = 0;
+ if (vma->obj)
cache_level = vma->obj->cache_level;
- } else {
- cache_level = 0;
- }
-
- GEM_BUG_ON(vma->pages);
-
- ret = vma->ops->set_pages(vma);
- if (ret)
- goto err_unpin;
if (flags & PIN_OFFSET_FIXED) {
u64 offset = flags & PIN_OFFSET_MASK;
if (!IS_ALIGNED(offset, alignment) ||
- range_overflows(offset, size, end)) {
- ret = -EINVAL;
- goto err_clear;
- }
+ range_overflows(offset, size, end))
+ return -EINVAL;
ret = i915_gem_gtt_reserve(vma->vm, &vma->node,
size, offset, cache_level,
flags);
if (ret)
- goto err_clear;
+ return ret;
} else {
/*
* We only support huge gtt pages through the 48b PPGTT,
@@ -647,7 +686,7 @@ i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
size, alignment, cache_level,
start, end, flags);
if (ret)
- goto err_clear;
+ return ret;
GEM_BUG_ON(vma->node.start < start);
GEM_BUG_ON(vma->node.start + vma->node.size > end);
@@ -655,23 +694,15 @@ i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
GEM_BUG_ON(!drm_mm_node_allocated(&vma->node));
GEM_BUG_ON(!i915_gem_valid_gtt_space(vma, cache_level));
- mutex_lock(&vma->vm->mutex);
list_add_tail(&vma->vm_link, &vma->vm->bound_list);
- mutex_unlock(&vma->vm->mutex);
if (vma->obj) {
+ atomic_inc(&vma->obj->mm.pages_pin_count);
atomic_inc(&vma->obj->bind_count);
assert_bind_count(vma->obj);
}
return 0;
-
-err_clear:
- vma->ops->clear_pages(vma);
-err_unpin:
- if (vma->obj)
- i915_gem_object_unpin_pages(vma->obj);
- return ret;
}
static void
@@ -680,12 +711,8 @@ i915_vma_remove(struct i915_vma *vma)
GEM_BUG_ON(!drm_mm_node_allocated(&vma->node));
GEM_BUG_ON(i915_vma_is_bound(vma, I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND));
- vma->ops->clear_pages(vma);
-
- mutex_lock(&vma->vm->mutex);
drm_mm_remove_node(&vma->node);
list_del(&vma->vm_link);
- mutex_unlock(&vma->vm->mutex);
/*
* Since the unbound list is global, only move to that list if
@@ -706,49 +733,111 @@ i915_vma_remove(struct i915_vma *vma)
}
}
-int __i915_vma_do_pin(struct i915_vma *vma,
- u64 size, u64 alignment, u64 flags)
+int i915_vma_pin(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
{
- const unsigned int bound = atomic_read(&vma->flags);
- int ret;
+ struct i915_vma_work *work = NULL;
+ bool insert = false;
+ unsigned int bound;
+ int err;
+
+ BUILD_BUG_ON(PIN_MBZ != I915_VMA_PIN_OVERFLOW);
+ BUILD_BUG_ON(PIN_GLOBAL != I915_VMA_GLOBAL_BIND);
+ BUILD_BUG_ON(PIN_USER != I915_VMA_LOCAL_BIND);
+
+ GEM_BUG_ON(flags & I915_VMA_PIN_OVERFLOW);
+ GEM_BUG_ON(flags & I915_VMA_ERROR);
+
+ bound = atomic_inc_return(&vma->flags);
+ if (likely(((bound ^ flags) & I915_VMA_BIND_MASK) == 0)) {
+ GEM_BUG_ON(!drm_mm_node_allocated(&vma->node));
+ GEM_BUG_ON(i915_vma_misplaced(vma, size, alignment, flags));
+ return 0;
+ }
- lockdep_assert_held(&vma->vm->i915->drm.struct_mutex);
- GEM_BUG_ON((flags & (PIN_GLOBAL | PIN_USER)) == 0);
- GEM_BUG_ON((flags & PIN_GLOBAL) && !i915_vma_is_ggtt(vma));
+ if (bound & I915_VMA_ERROR) {
+ err = -ENOMEM;
+ goto err_unpin;
+ }
if (WARN_ON(bound & I915_VMA_PIN_OVERFLOW)) {
- ret = -EBUSY;
+ err = -ENOMEM;
goto err_unpin;
}
- if ((bound & I915_VMA_BIND_MASK) == 0) {
- ret = i915_vma_insert(vma, size, alignment, flags);
- if (ret)
- goto err_unpin;
+ if (vma->obj) {
+ err = i915_gem_object_pin_pages(vma->obj);
+ if (err)
+ return err;
}
- GEM_BUG_ON(!drm_mm_node_allocated(&vma->node));
- ret = i915_vma_bind(vma, vma->obj ? vma->obj->cache_level : 0, flags);
- if (ret)
- goto err_remove;
+ if (!vma->pages) {
+ GEM_BUG_ON(vma->pages);
+ err = vma->ops->set_pages(vma);
+ if (err)
+ goto err_pages;
+
+ GEM_BUG_ON(!vma->pages);
+ insert = true;
+ }
+
+ if (flags & PIN_USER) {
+ work = i915_vma_work();
+ if (!work) {
+ err = -ENOMEM;
+ goto err_clear;
+ }
+ }
- GEM_BUG_ON(!i915_vma_is_bound(vma, I915_VMA_BIND_MASK));
+ err = i915_active_acquire(&vma->active);
+ if (err)
+ goto err_fence;
- if ((bound ^ atomic_read(&vma->flags)) & I915_VMA_GLOBAL_BIND)
- __i915_vma_set_map_and_fenceable(vma);
+ err = mutex_lock_interruptible(&vma->vm->mutex);
+ if (err)
+ goto err_active;
- GEM_BUG_ON(i915_vma_misplaced(vma, size, alignment, flags));
- return 0;
+ if (insert) {
+ err = i915_vma_insert(vma, size, alignment, flags);
+ if (err)
+ goto err_unlock;
+ }
+
+ err = i915_vma_bind(vma,
+ vma->obj ? vma->obj->cache_level : 0,
+ flags, work);
+ if (err == 0) {
+ GEM_BUG_ON(!i915_vma_is_bound(vma, I915_VMA_BIND_MASK));
-err_remove:
- if ((bound & I915_VMA_BIND_MASK) == 0) {
- i915_vma_remove(vma);
+ if ((bound ^ atomic_read(&vma->flags)) & I915_VMA_GLOBAL_BIND)
+ __i915_vma_set_map_and_fenceable(vma);
+
+ GEM_BUG_ON(i915_vma_misplaced(vma, size, alignment, flags));
+
+ __i915_vma_pin(vma);
+ } else {
+ if (insert)
+ i915_vma_remove(vma);
+ }
+
+err_unlock:
+ mutex_unlock(&vma->vm->mutex);
+err_active:
+ i915_active_release(&vma->active);
+err_fence:
+ if (work)
+ dma_fence_work_commit(&work->base);
+err_clear:
+ if (err && insert) {
+ vma->ops->clear_pages(vma);
GEM_BUG_ON(vma->pages);
GEM_BUG_ON(atomic_read(&vma->flags) & I915_VMA_BIND_MASK);
}
+err_pages:
+ if (vma->obj)
+ i915_gem_object_unpin_pages(vma->obj);
err_unpin:
__i915_vma_unpin(vma);
- return ret;
+ return err;
}
void i915_vma_close(struct i915_vma *vma)
@@ -792,10 +881,18 @@ void i915_vma_reopen(struct i915_vma *vma)
__i915_vma_remove_closed(vma);
}
-static void __i915_vma_destroy(struct i915_vma *vma)
+void i915_vma_destroy(struct i915_vma *vma)
{
- GEM_BUG_ON(vma->node.allocated);
- GEM_BUG_ON(vma->fence);
+ __i915_vma_remove_closed(vma);
+
+ if (drm_mm_node_allocated(&vma->node)) {
+ mutex_lock(&vma->vm->mutex);
+ atomic_and(~I915_VMA_PIN_MASK, &vma->flags);
+ WARN_ON(i915_vma_unbind(vma));
+ mutex_unlock(&vma->vm->mutex);
+ GEM_BUG_ON(drm_mm_node_allocated(&vma->node));
+ }
+ GEM_BUG_ON(i915_vma_is_active(vma));
if (vma->obj) {
struct drm_i915_gem_object *obj = vma->obj;
@@ -806,36 +903,36 @@ static void __i915_vma_destroy(struct i915_vma *vma)
spin_unlock(&obj->vma.lock);
}
- i915_active_fini(&vma->active);
+ i915_vm_put(vma->vm);
+ i915_active_fini(&vma->active);
i915_vma_free(vma);
}
-void i915_vma_destroy(struct i915_vma *vma)
-{
- lockdep_assert_held(&vma->vm->i915->drm.struct_mutex);
-
- GEM_BUG_ON(i915_vma_is_pinned(vma));
-
- __i915_vma_remove_closed(vma);
-
- WARN_ON(i915_vma_unbind(vma));
- GEM_BUG_ON(i915_vma_is_active(vma));
-
- __i915_vma_destroy(vma);
-}
-
void i915_vma_parked(struct drm_i915_private *i915)
{
struct i915_vma *vma, *next;
spin_lock_irq(&i915->gt.closed_lock);
list_for_each_entry_safe(vma, next, &i915->gt.closed_vma, closed_link) {
+ struct drm_i915_gem_object *obj = vma->obj;
+ struct i915_address_space *vm = vma->vm;
+
list_del_init(&vma->closed_link);
+ if (!i915_vm_tryopen(vm))
+ continue;
+
+ if (!kref_get_unless_zero(&obj->base.refcount))
+ obj = NULL;
+
spin_unlock_irq(&i915->gt.closed_lock);
- i915_vma_destroy(vma);
+ if (obj) {
+ i915_vma_destroy(vma);
+ i915_gem_object_put(obj);
+ }
+ i915_vm_close(vm);
spin_lock_irq(&i915->gt.closed_lock);
}
spin_unlock_irq(&i915->gt.closed_lock);
@@ -927,34 +1024,15 @@ int i915_vma_unbind(struct i915_vma *vma)
{
int ret;
- lockdep_assert_held(&vma->vm->i915->drm.struct_mutex);
+ lockdep_assert_held(&vma->vm->mutex);
/*
* First wait upon any activity as retiring the request may
* have side-effects such as unpinning or even unbinding this vma.
*/
- might_sleep();
- if (i915_vma_is_active(vma)) {
- /*
- * When a closed VMA is retired, it is unbound - eek.
- * In order to prevent it from being recursively closed,
- * take a pin on the vma so that the second unbind is
- * aborted.
- *
- * Even more scary is that the retire callback may free
- * the object (last active vma). To prevent the explosion
- * we defer the actual object free to a worker that can
- * only proceed once it acquires the struct_mutex (which
- * we currently hold, therefore it cannot free this object
- * before we are finished).
- */
- __i915_vma_pin(vma);
- ret = i915_active_wait(&vma->active);
- __i915_vma_unpin(vma);
- if (ret)
- return ret;
- }
- GEM_BUG_ON(i915_vma_is_active(vma));
+ ret = i915_active_wait(&vma->active);
+ if (ret)
+ return ret;
if (i915_vma_is_pinned(vma)) {
vma_print_allocator(vma, "is pinned");
@@ -975,16 +1053,12 @@ int i915_vma_unbind(struct i915_vma *vma)
GEM_BUG_ON(i915_vma_has_ggtt_write(vma));
/* release the fence reg _after_ flushing */
- mutex_lock(&vma->vm->mutex);
ret = i915_vma_revoke_fence(vma);
- mutex_unlock(&vma->vm->mutex);
if (ret)
return ret;
/* Force a pagefault for domain tracking on next user access */
- mutex_lock(&vma->vm->mutex);
i915_vma_revoke_mmap(vma);
- mutex_unlock(&vma->vm->mutex);
__i915_vma_iounmap(vma);
clear_bit(I915_VMA_CAN_FENCE_BIT, __i915_vma_flags(vma));
@@ -992,13 +1066,14 @@ int i915_vma_unbind(struct i915_vma *vma)
GEM_BUG_ON(vma->fence);
GEM_BUG_ON(i915_vma_has_userfault(vma));
- if (likely(!vma->vm->closed)) {
+ if (likely(atomic_read(&vma->vm->open))) {
trace_i915_vma_unbind(vma);
vma->ops->unbind_vma(vma);
}
atomic_and(~I915_VMA_BIND_MASK, &vma->flags);
i915_vma_remove(vma);
+ vma->ops->clear_pages(vma);
return 0;
}
diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h
index 38c6f3427e8c..c8ccf8536a82 100644
--- a/drivers/gpu/drm/i915/i915_vma.h
+++ b/drivers/gpu/drm/i915/i915_vma.h
@@ -73,6 +73,7 @@ struct i915_vma {
*/
atomic_t open_count;
atomic_t flags;
+
/**
* How many users have pinned this object in GTT space.
*
@@ -103,18 +104,24 @@ struct i915_vma {
/** Flags and address space this VMA is bound to */
#define I915_VMA_GLOBAL_BIND_BIT 9
#define I915_VMA_LOCAL_BIND_BIT 10
+#define I915_VMA_ERROR_BIT 11
#define I915_VMA_GLOBAL_BIND ((int)BIT(I915_VMA_GLOBAL_BIND_BIT))
#define I915_VMA_LOCAL_BIND ((int)BIT(I915_VMA_LOCAL_BIND_BIT))
+#define I915_VMA_ERROR ((int)BIT(I915_VMA_ERROR_BIT))
#define I915_VMA_BIND_MASK (I915_VMA_GLOBAL_BIND | \
I915_VMA_LOCAL_BIND | \
+ I915_VMA_ERROR | \
I915_VMA_PIN_OVERFLOW)
-#define I915_VMA_GGTT_BIT 11
-#define I915_VMA_CAN_FENCE_BIT 12
-#define I915_VMA_USERFAULT_BIT 13
-#define I915_VMA_GGTT_WRITE_BIT 14
+#define I915_VMA_ALLOC_BIT 12
+#define I915_VMA_ALLOC ((int)BIT(I915_VMA_ALLOC_BIT))
+
+#define I915_VMA_GGTT_BIT 13
+#define I915_VMA_CAN_FENCE_BIT 14
+#define I915_VMA_USERFAULT_BIT 15
+#define I915_VMA_GGTT_WRITE_BIT 16
#define I915_VMA_GGTT ((int)BIT(I915_VMA_GGTT_BIT))
#define I915_VMA_CAN_FENCE ((int)BIT(I915_VMA_CAN_FENCE_BIT))
@@ -308,8 +315,12 @@ i915_vma_compare(struct i915_vma *vma,
return memcmp(&vma->ggtt_view.partial, &view->partial, view->type);
}
-int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
- u32 flags);
+struct i915_vma_work *i915_vma_work(void);
+int i915_vma_bind(struct i915_vma *vma,
+ enum i915_cache_level cache_level,
+ u32 flags,
+ struct i915_vma_work *work);
+
bool i915_gem_valid_gtt_space(struct i915_vma *vma, unsigned long cache_level);
bool i915_vma_misplaced(const struct i915_vma *vma,
u64 size, u64 alignment, u64 flags);
@@ -328,32 +339,19 @@ static inline void i915_vma_lock(struct i915_vma *vma)
dma_resv_lock(vma->resv, NULL);
}
-static inline void i915_vma_unlock(struct i915_vma *vma)
+static inline bool i915_vma_trylock(struct i915_vma *vma)
{
- dma_resv_unlock(vma->resv);
+ return dma_resv_trylock(vma->resv);
}
-int __i915_vma_do_pin(struct i915_vma *vma,
- u64 size, u64 alignment, u64 flags);
-static inline int __must_check
-i915_vma_pin(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
+static inline void i915_vma_unlock(struct i915_vma *vma)
{
- BUILD_BUG_ON(PIN_MBZ != I915_VMA_PIN_OVERFLOW);
- BUILD_BUG_ON(PIN_GLOBAL != I915_VMA_GLOBAL_BIND);
- BUILD_BUG_ON(PIN_USER != I915_VMA_LOCAL_BIND);
-
- /* Pin early to prevent the shrinker/eviction logic from destroying
- * our vma as we insert and bind.
- */
- if (likely(((atomic_inc_return(&vma->flags) ^ flags) & I915_VMA_BIND_MASK) == 0)) {
- GEM_BUG_ON(!drm_mm_node_allocated(&vma->node));
- GEM_BUG_ON(i915_vma_misplaced(vma, size, alignment, flags));
- return 0;
- }
-
- return __i915_vma_do_pin(vma, size, alignment, flags);
+ dma_resv_unlock(vma->resv);
}
+int __must_check
+i915_vma_pin(struct i915_vma *vma, u64 size, u64 alignment, u64 flags);
+
static inline int i915_vma_pin_count(const struct i915_vma *vma)
{
return atomic_read(&vma->flags) & I915_VMA_PIN_MASK;
@@ -397,8 +395,6 @@ static inline bool i915_vma_is_bound(const struct i915_vma *vma,
* the caller must call i915_vma_unpin_iomap to relinquish the pinning
* after the iomapping is no longer required.
*
- * Callers must hold the struct_mutex.
- *
* Returns a valid iomapped pointer or ERR_PTR.
*/
void __iomem *i915_vma_pin_iomap(struct i915_vma *vma);
@@ -410,8 +406,8 @@ void __iomem *i915_vma_pin_iomap(struct i915_vma *vma);
*
* Unpins the previously iomapped VMA from i915_vma_pin_iomap().
*
- * Callers must hold the struct_mutex. This function is only valid to be
- * called on a VMA previously iomapped by the caller with i915_vma_pin_iomap().
+ * This function is only valid to be called on a VMA previously
+ * iomapped by the caller with i915_vma_pin_iomap().
*/
void i915_vma_unpin_iomap(struct i915_vma *vma);
@@ -439,6 +435,8 @@ static inline struct page *i915_vma_first_page(struct i915_vma *vma)
int __must_check i915_vma_pin_fence(struct i915_vma *vma);
int __must_check i915_vma_revoke_fence(struct i915_vma *vma);
+int __i915_vma_pin_fence(struct i915_vma *vma);
+
static inline void __i915_vma_unpin_fence(struct i915_vma *vma)
{
GEM_BUG_ON(atomic_read(&vma->fence->pin_count) <= 0);
@@ -456,7 +454,6 @@ static inline void __i915_vma_unpin_fence(struct i915_vma *vma)
static inline void
i915_vma_unpin_fence(struct i915_vma *vma)
{
- /* lockdep_assert_held(&vma->vm->i915->drm.struct_mutex); */
if (vma->fence)
__i915_vma_unpin_fence(vma);
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
index cb30c669b1b7..ba6064147173 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_evict.c
@@ -106,14 +106,11 @@ static int populate_ggtt(struct drm_i915_private *i915,
static void unpin_ggtt(struct drm_i915_private *i915)
{
- struct i915_ggtt *ggtt = &i915->ggtt;
struct i915_vma *vma;
- mutex_lock(&ggtt->vm.mutex);
list_for_each_entry(vma, &i915->ggtt.vm.bound_list, vm_link)
if (vma->obj->mm.quirked)
i915_vma_unpin(vma);
- mutex_unlock(&ggtt->vm.mutex);
}
static void cleanup_objects(struct drm_i915_private *i915,
@@ -127,11 +124,7 @@ static void cleanup_objects(struct drm_i915_private *i915,
i915_gem_object_put(obj);
}
- mutex_unlock(&i915->drm.struct_mutex);
-
i915_gem_drain_freed_objects(i915);
-
- mutex_lock(&i915->drm.struct_mutex);
}
static int igt_evict_something(void *arg)
@@ -148,10 +141,12 @@ static int igt_evict_something(void *arg)
goto cleanup;
/* Everything is pinned, nothing should happen */
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_evict_something(&ggtt->vm,
I915_GTT_PAGE_SIZE, 0, 0,
0, U64_MAX,
0);
+ mutex_unlock(&ggtt->vm.mutex);
if (err != -ENOSPC) {
pr_err("i915_gem_evict_something failed on a full GGTT with err=%d\n",
err);
@@ -161,10 +156,12 @@ static int igt_evict_something(void *arg)
unpin_ggtt(i915);
/* Everything is unpinned, we should be able to evict something */
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_evict_something(&ggtt->vm,
I915_GTT_PAGE_SIZE, 0, 0,
0, U64_MAX,
0);
+ mutex_unlock(&ggtt->vm.mutex);
if (err) {
pr_err("i915_gem_evict_something failed on a full GGTT with err=%d\n",
err);
@@ -230,7 +227,9 @@ static int igt_evict_for_vma(void *arg)
goto cleanup;
/* Everything is pinned, nothing should happen */
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_evict_for_node(&ggtt->vm, &target, 0);
+ mutex_unlock(&ggtt->vm.mutex);
if (err != -ENOSPC) {
pr_err("i915_gem_evict_for_node on a full GGTT returned err=%d\n",
err);
@@ -240,7 +239,9 @@ static int igt_evict_for_vma(void *arg)
unpin_ggtt(i915);
/* Everything is unpinned, we should be able to evict the node */
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_evict_for_node(&ggtt->vm, &target, 0);
+ mutex_unlock(&ggtt->vm.mutex);
if (err) {
pr_err("i915_gem_evict_for_node returned err=%d\n",
err);
@@ -317,7 +318,9 @@ static int igt_evict_for_cache_color(void *arg)
i915_vma_unpin(vma);
/* Remove just the second vma */
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_evict_for_node(&ggtt->vm, &target, 0);
+ mutex_unlock(&ggtt->vm.mutex);
if (err) {
pr_err("[0]i915_gem_evict_for_node returned err=%d\n", err);
goto cleanup;
@@ -328,7 +331,9 @@ static int igt_evict_for_cache_color(void *arg)
*/
target.color = I915_CACHE_L3_LLC;
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_evict_for_node(&ggtt->vm, &target, 0);
+ mutex_unlock(&ggtt->vm.mutex);
if (!err) {
pr_err("[1]i915_gem_evict_for_node returned err=%d\n", err);
err = -EINVAL;
@@ -358,7 +363,9 @@ static int igt_evict_vm(void *arg)
goto cleanup;
/* Everything is pinned, nothing should happen */
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_evict_vm(&ggtt->vm);
+ mutex_unlock(&ggtt->vm.mutex);
if (err) {
pr_err("i915_gem_evict_vm on a full GGTT returned err=%d]\n",
err);
@@ -367,7 +374,9 @@ static int igt_evict_vm(void *arg)
unpin_ggtt(i915);
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_evict_vm(&ggtt->vm);
+ mutex_unlock(&ggtt->vm.mutex);
if (err) {
pr_err("i915_gem_evict_vm on a full GGTT returned err=%d]\n",
err);
@@ -408,11 +417,11 @@ static int igt_evict_contexts(void *arg)
if (!HAS_FULL_PPGTT(i915))
return 0;
- mutex_lock(&i915->drm.struct_mutex);
wakeref = intel_runtime_pm_get(&i915->runtime_pm);
/* Reserve a block so that we know we have enough to fit a few rq */
memset(&hole, 0, sizeof(hole));
+ mutex_lock(&i915->ggtt.vm.mutex);
err = i915_gem_gtt_insert(&i915->ggtt.vm, &hole,
PRETEND_GGTT_SIZE, 0, I915_COLOR_UNEVICTABLE,
0, i915->ggtt.vm.total,
@@ -425,7 +434,9 @@ static int igt_evict_contexts(void *arg)
do {
struct reserved *r;
+ mutex_unlock(&i915->ggtt.vm.mutex);
r = kcalloc(1, sizeof(*r), GFP_KERNEL);
+ mutex_lock(&i915->ggtt.vm.mutex);
if (!r) {
err = -ENOMEM;
goto out_locked;
@@ -445,7 +456,7 @@ static int igt_evict_contexts(void *arg)
count++;
} while (1);
drm_mm_remove_node(&hole);
- mutex_unlock(&i915->drm.struct_mutex);
+ mutex_unlock(&i915->ggtt.vm.mutex);
pr_info("Filled GGTT with %lu 1MiB nodes\n", count);
/* Overfill the GGTT with context objects and so try to evict one. */
@@ -508,7 +519,7 @@ static int igt_evict_contexts(void *arg)
break;
}
- mutex_lock(&i915->drm.struct_mutex);
+ mutex_lock(&i915->ggtt.vm.mutex);
out_locked:
if (igt_flush_test(i915, I915_WAIT_LOCKED))
err = -EIO;
@@ -522,8 +533,8 @@ static int igt_evict_contexts(void *arg)
}
if (drm_mm_node_allocated(&hole))
drm_mm_remove_node(&hole);
+ mutex_unlock(&i915->ggtt.vm.mutex);
intel_runtime_pm_put(&i915->runtime_pm, wakeref);
- mutex_unlock(&i915->drm.struct_mutex);
return err;
}
@@ -545,12 +556,9 @@ int i915_gem_evict_mock_selftests(void)
if (!i915)
return -ENOMEM;
- mutex_lock(&i915->drm.struct_mutex);
with_intel_runtime_pm(&i915->runtime_pm, wakeref)
err = i915_subtests(tests, i915);
- mutex_unlock(&i915->drm.struct_mutex);
-
drm_dev_put(&i915->drm);
return err;
}
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index a90c9be95f8c..3373f20fb144 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -35,16 +35,7 @@
static void cleanup_freed_objects(struct drm_i915_private *i915)
{
- /*
- * As we may hold onto the struct_mutex for inordinate lengths of
- * time, the NMI khungtaskd detector may fire for the free objects
- * worker.
- */
- mutex_unlock(&i915->drm.struct_mutex);
-
i915_gem_drain_freed_objects(i915);
-
- mutex_lock(&i915->drm.struct_mutex);
}
static void fake_free_pages(struct drm_i915_gem_object *obj,
@@ -318,6 +309,17 @@ static int lowlevel_hole(struct drm_i915_private *i915,
return 0;
}
+static int unlocked_vma_unbind(struct i915_vma *vma)
+{
+ int ret;
+
+ mutex_lock(&vma->vm->mutex);
+ ret = i915_vma_unbind(vma);
+ mutex_unlock(&vma->vm->mutex);
+
+ return ret;
+}
+
static void close_object_list(struct list_head *objects,
struct i915_address_space *vm)
{
@@ -329,7 +331,7 @@ static void close_object_list(struct list_head *objects,
vma = i915_vma_instance(obj, vm, NULL);
if (!IS_ERR(vma))
- ignored = i915_vma_unbind(vma);
+ ignored = unlocked_vma_unbind(vma);
/* Only ppgtt vma may be closed before the object is freed */
if (!IS_ERR(vma) && !i915_vma_is_ggtt(vma))
i915_vma_close(vma);
@@ -444,7 +446,7 @@ static int fill_hole(struct drm_i915_private *i915,
goto err;
}
- err = i915_vma_unbind(vma);
+ err = unlocked_vma_unbind(vma);
if (err) {
pr_err("%s(%s) (forward) unbind of vma.node=%llx + %llx failed with err=%d\n",
__func__, p->name, vma->node.start, vma->node.size,
@@ -517,7 +519,7 @@ static int fill_hole(struct drm_i915_private *i915,
goto err;
}
- err = i915_vma_unbind(vma);
+ err = unlocked_vma_unbind(vma);
if (err) {
pr_err("%s(%s) (backward) unbind of vma.node=%llx + %llx failed with err=%d\n",
__func__, p->name, vma->node.start, vma->node.size,
@@ -604,7 +606,7 @@ static int walk_hole(struct drm_i915_private *i915,
goto err_close;
}
- err = i915_vma_unbind(vma);
+ err = unlocked_vma_unbind(vma);
if (err) {
pr_err("%s unbind failed at %llx + %llx with err=%d\n",
__func__, addr, vma->size, err);
@@ -685,13 +687,13 @@ static int pot_hole(struct drm_i915_private *i915,
pr_err("%s incorrect at %llx + %llx\n",
__func__, addr, vma->size);
i915_vma_unpin(vma);
- err = i915_vma_unbind(vma);
+ err = unlocked_vma_unbind(vma);
err = -EINVAL;
goto err;
}
i915_vma_unpin(vma);
- err = i915_vma_unbind(vma);
+ err = unlocked_vma_unbind(vma);
GEM_BUG_ON(err);
}
@@ -789,13 +791,13 @@ static int drunk_hole(struct drm_i915_private *i915,
pr_err("%s incorrect at %llx + %llx\n",
__func__, addr, BIT_ULL(size));
i915_vma_unpin(vma);
- err = i915_vma_unbind(vma);
+ err = unlocked_vma_unbind(vma);
err = -EINVAL;
goto err;
}
i915_vma_unpin(vma);
- err = i915_vma_unbind(vma);
+ err = unlocked_vma_unbind(vma);
GEM_BUG_ON(err);
if (igt_timeout(end_time,
@@ -867,7 +869,7 @@ static int __shrink_hole(struct drm_i915_private *i915,
pr_err("%s incorrect at %llx + %llx\n",
__func__, addr, size);
i915_vma_unpin(vma);
- err = i915_vma_unbind(vma);
+ err = unlocked_vma_unbind(vma);
err = -EINVAL;
break;
}
@@ -875,6 +877,15 @@ static int __shrink_hole(struct drm_i915_private *i915,
i915_vma_unpin(vma);
addr += size;
+ /*
+ * Since we are injecting allocation faults at random intervals,
+ * wait for this allocation to complete before we change the
+ * faultinjection.
+ */
+ err = i915_active_wait(&vma->active);
+ if (err)
+ break;
+
if (igt_timeout(end_time,
"%s timed out at ofset %llx [%llx - %llx]\n",
__func__, addr, hole_start, hole_end)) {
@@ -1008,21 +1019,19 @@ static int exercise_ppgtt(struct drm_i915_private *dev_priv,
if (IS_ERR(file))
return PTR_ERR(file);
- mutex_lock(&dev_priv->drm.struct_mutex);
ppgtt = i915_ppgtt_create(dev_priv);
if (IS_ERR(ppgtt)) {
err = PTR_ERR(ppgtt);
- goto out_unlock;
+ goto out_free;
}
GEM_BUG_ON(offset_in_page(ppgtt->vm.total));
- GEM_BUG_ON(ppgtt->vm.closed);
+ GEM_BUG_ON(!atomic_read(&ppgtt->vm.open));
err = func(dev_priv, &ppgtt->vm, 0, ppgtt->vm.total, end_time);
i915_vm_put(&ppgtt->vm);
-out_unlock:
- mutex_unlock(&dev_priv->drm.struct_mutex);
+out_free:
mock_file_free(dev_priv, file);
return err;
}
@@ -1085,7 +1094,6 @@ static int exercise_ggtt(struct drm_i915_private *i915,
IGT_TIMEOUT(end_time);
int err = 0;
- mutex_lock(&i915->drm.struct_mutex);
restart:
list_sort(NULL, &ggtt->vm.mm.hole_stack, sort_holes);
drm_mm_for_each_hole(node, &ggtt->vm.mm, hole_start, hole_end) {
@@ -1106,7 +1114,6 @@ static int exercise_ggtt(struct drm_i915_private *i915,
last = hole_end;
goto restart;
}
- mutex_unlock(&i915->drm.struct_mutex);
return err;
}
@@ -1148,13 +1155,9 @@ static int igt_ggtt_page(void *arg)
unsigned int *order, n;
int err;
- mutex_lock(&i915->drm.struct_mutex);
-
obj = i915_gem_object_create_internal(i915, PAGE_SIZE);
- if (IS_ERR(obj)) {
- err = PTR_ERR(obj);
- goto out_unlock;
- }
+ if (IS_ERR(obj))
+ return PTR_ERR(obj);
err = i915_gem_object_pin_pages(obj);
if (err)
@@ -1222,8 +1225,6 @@ static int igt_ggtt_page(void *arg)
i915_gem_object_unpin_pages(obj);
out_free:
i915_gem_object_put(obj);
-out_unlock:
- mutex_unlock(&i915->drm.struct_mutex);
return err;
}
@@ -1330,11 +1331,13 @@ static int igt_gtt_reserve(void *arg)
goto out;
}
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_gtt_reserve(&ggtt->vm, &vma->node,
obj->base.size,
total,
obj->cache_level,
0);
+ mutex_unlock(&ggtt->vm.mutex);
if (err) {
pr_err("i915_gem_gtt_reserve (pass 1) failed at %llu/%llu with err=%d\n",
total, ggtt->vm.total, err);
@@ -1380,11 +1383,13 @@ static int igt_gtt_reserve(void *arg)
goto out;
}
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_gtt_reserve(&ggtt->vm, &vma->node,
obj->base.size,
total,
obj->cache_level,
0);
+ mutex_unlock(&ggtt->vm.mutex);
if (err) {
pr_err("i915_gem_gtt_reserve (pass 2) failed at %llu/%llu with err=%d\n",
total, ggtt->vm.total, err);
@@ -1414,7 +1419,7 @@ static int igt_gtt_reserve(void *arg)
goto out;
}
- err = i915_vma_unbind(vma);
+ err = unlocked_vma_unbind(vma);
if (err) {
pr_err("i915_vma_unbind failed with err=%d!\n", err);
goto out;
@@ -1424,11 +1429,13 @@ static int igt_gtt_reserve(void *arg)
2*I915_GTT_PAGE_SIZE,
I915_GTT_MIN_ALIGNMENT);
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_gtt_reserve(&ggtt->vm, &vma->node,
obj->base.size,
offset,
obj->cache_level,
0);
+ mutex_unlock(&ggtt->vm.mutex);
if (err) {
pr_err("i915_gem_gtt_reserve (pass 3) failed at %llu/%llu with err=%d\n",
total, ggtt->vm.total, err);
@@ -1497,11 +1504,13 @@ static int igt_gtt_insert(void *arg)
/* Check a couple of obviously invalid requests */
for (ii = invalid_insert; ii->size; ii++) {
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_gtt_insert(&ggtt->vm, &tmp,
ii->size, ii->alignment,
I915_COLOR_UNEVICTABLE,
ii->start, ii->end,
0);
+ mutex_unlock(&ggtt->vm.mutex);
if (err != -ENOSPC) {
pr_err("Invalid i915_gem_gtt_insert(.size=%llx, .alignment=%llx, .start=%llx, .end=%llx) succeeded (err=%d)\n",
ii->size, ii->alignment, ii->start, ii->end,
@@ -1537,10 +1546,12 @@ static int igt_gtt_insert(void *arg)
goto out;
}
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_gtt_insert(&ggtt->vm, &vma->node,
obj->base.size, 0, obj->cache_level,
0, ggtt->vm.total,
0);
+ mutex_unlock(&ggtt->vm.mutex);
if (err == -ENOSPC) {
/* maxed out the GGTT space */
i915_gem_object_put(obj);
@@ -1589,16 +1600,18 @@ static int igt_gtt_insert(void *arg)
GEM_BUG_ON(!drm_mm_node_allocated(&vma->node));
offset = vma->node.start;
- err = i915_vma_unbind(vma);
+ err = unlocked_vma_unbind(vma);
if (err) {
pr_err("i915_vma_unbind failed with err=%d!\n", err);
goto out;
}
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_gtt_insert(&ggtt->vm, &vma->node,
obj->base.size, 0, obj->cache_level,
0, ggtt->vm.total,
0);
+ mutex_unlock(&ggtt->vm.mutex);
if (err) {
pr_err("i915_gem_gtt_insert (pass 2) failed at %llu/%llu with err=%d\n",
total, ggtt->vm.total, err);
@@ -1642,10 +1655,12 @@ static int igt_gtt_insert(void *arg)
goto out;
}
+ mutex_lock(&ggtt->vm.mutex);
err = i915_gem_gtt_insert(&ggtt->vm, &vma->node,
obj->base.size, 0, obj->cache_level,
0, ggtt->vm.total,
0);
+ mutex_unlock(&ggtt->vm.mutex);
if (err) {
pr_err("i915_gem_gtt_insert (pass 3) failed at %llu/%llu with err=%d\n",
total, ggtt->vm.total, err);
@@ -1689,8 +1704,9 @@ int i915_gem_gtt_mock_selftests(void)
}
mock_init_ggtt(i915, ggtt);
- mutex_lock(&i915->drm.struct_mutex);
err = i915_subtests(tests, ggtt);
+
+ mutex_lock(&i915->drm.struct_mutex);
mock_device_flush(i915);
mutex_unlock(&i915->drm.struct_mutex);
diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c b/drivers/gpu/drm/i915/selftests/i915_vma.c
index a5bec0a4cdcc..53aafb9a3d64 100644
--- a/drivers/gpu/drm/i915/selftests/i915_vma.c
+++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
@@ -337,7 +337,9 @@ static int igt_vma_pin1(void *arg)
if (!err) {
i915_vma_unpin(vma);
+ mutex_lock(&ggtt->vm.mutex);
err = i915_vma_unbind(vma);
+ mutex_unlock(&ggtt->vm.mutex);
if (err) {
pr_err("Failed to unbind single page from GGTT, err=%d\n", err);
goto out;
--
2.23.0
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