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path: root/drivers/gpu/drm/i915/i915_gem.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem.c')
-rw-r--r--drivers/gpu/drm/i915/i915_gem.c104
1 files changed, 58 insertions, 46 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index b9e8e0d6e97b..8f074c7f6253 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -695,12 +695,11 @@ flush_write_domain(struct drm_i915_gem_object *obj, unsigned int flush_domains)
switch (obj->base.write_domain) {
case I915_GEM_DOMAIN_GTT:
if (INTEL_GEN(dev_priv) >= 6 && !HAS_LLC(dev_priv)) {
- if (intel_runtime_pm_get_if_in_use(dev_priv)) {
- spin_lock_irq(&dev_priv->uncore.lock);
- POSTING_READ_FW(RING_ACTHD(dev_priv->engine[RCS]->mmio_base));
- spin_unlock_irq(&dev_priv->uncore.lock);
- intel_runtime_pm_put(dev_priv);
- }
+ intel_runtime_pm_get(dev_priv);
+ spin_lock_irq(&dev_priv->uncore.lock);
+ POSTING_READ_FW(RING_ACTHD(dev_priv->engine[RCS]->mmio_base));
+ spin_unlock_irq(&dev_priv->uncore.lock);
+ intel_runtime_pm_put(dev_priv);
}
intel_fb_obj_flush(obj,
@@ -1014,17 +1013,20 @@ gtt_user_read(struct io_mapping *mapping,
loff_t base, int offset,
char __user *user_data, int length)
{
- void *vaddr;
+ void __iomem *vaddr;
unsigned long unwritten;
/* We can use the cpu mem copy function because this is X86. */
- vaddr = (void __force *)io_mapping_map_atomic_wc(mapping, base);
- unwritten = __copy_to_user_inatomic(user_data, vaddr + offset, length);
+ vaddr = io_mapping_map_atomic_wc(mapping, base);
+ unwritten = __copy_to_user_inatomic(user_data,
+ (void __force *)vaddr + offset,
+ length);
io_mapping_unmap_atomic(vaddr);
if (unwritten) {
- vaddr = (void __force *)
- io_mapping_map_wc(mapping, base, PAGE_SIZE);
- unwritten = copy_to_user(user_data, vaddr + offset, length);
+ vaddr = io_mapping_map_wc(mapping, base, PAGE_SIZE);
+ unwritten = copy_to_user(user_data,
+ (void __force *)vaddr + offset,
+ length);
io_mapping_unmap(vaddr);
}
return unwritten;
@@ -1190,18 +1192,18 @@ ggtt_write(struct io_mapping *mapping,
loff_t base, int offset,
char __user *user_data, int length)
{
- void *vaddr;
+ void __iomem *vaddr;
unsigned long unwritten;
/* We can use the cpu mem copy function because this is X86. */
- vaddr = (void __force *)io_mapping_map_atomic_wc(mapping, base);
- unwritten = __copy_from_user_inatomic_nocache(vaddr + offset,
+ vaddr = io_mapping_map_atomic_wc(mapping, base);
+ unwritten = __copy_from_user_inatomic_nocache((void __force *)vaddr + offset,
user_data, length);
io_mapping_unmap_atomic(vaddr);
if (unwritten) {
- vaddr = (void __force *)
- io_mapping_map_wc(mapping, base, PAGE_SIZE);
- unwritten = copy_from_user(vaddr + offset, user_data, length);
+ vaddr = io_mapping_map_wc(mapping, base, PAGE_SIZE);
+ unwritten = copy_from_user((void __force *)vaddr + offset,
+ user_data, length);
io_mapping_unmap(vaddr);
}
@@ -2213,7 +2215,7 @@ i915_gem_object_put_pages_gtt(struct drm_i915_gem_object *obj,
static void __i915_gem_object_reset_page_iter(struct drm_i915_gem_object *obj)
{
struct radix_tree_iter iter;
- void **slot;
+ void __rcu **slot;
radix_tree_for_each_slot(slot, &obj->mm.get_page.radix, &iter, 0)
radix_tree_delete(&obj->mm.get_page.radix, iter.index);
@@ -2354,7 +2356,7 @@ rebuild_st:
goto err_sg;
}
- i915_gem_shrink(dev_priv, 2 * page_count, *s++);
+ i915_gem_shrink(dev_priv, 2 * page_count, NULL, *s++);
cond_resched();
/* We've tried hard to allocate the memory by reaping
@@ -2477,8 +2479,6 @@ static int ____i915_gem_object_get_pages(struct drm_i915_gem_object *obj)
{
struct sg_table *pages;
- GEM_BUG_ON(i915_gem_object_has_pinned_pages(obj));
-
if (unlikely(obj->mm.madv != I915_MADV_WILLNEED)) {
DRM_DEBUG("Attempting to obtain a purgeable object\n");
return -EFAULT;
@@ -2508,6 +2508,8 @@ int __i915_gem_object_get_pages(struct drm_i915_gem_object *obj)
return err;
if (unlikely(IS_ERR_OR_NULL(obj->mm.pages))) {
+ GEM_BUG_ON(i915_gem_object_has_pinned_pages(obj));
+
err = ____i915_gem_object_get_pages(obj);
if (err)
goto unlock;
@@ -2541,7 +2543,7 @@ static void *i915_gem_object_map(const struct drm_i915_gem_object *obj,
if (n_pages > ARRAY_SIZE(stack_pages)) {
/* Too big for stack -- allocate temporary array instead */
- pages = kvmalloc_array(n_pages, sizeof(*pages), GFP_TEMPORARY);
+ pages = kvmalloc_array(n_pages, sizeof(*pages), GFP_KERNEL);
if (!pages)
return NULL;
}
@@ -2553,6 +2555,9 @@ static void *i915_gem_object_map(const struct drm_i915_gem_object *obj,
GEM_BUG_ON(i != n_pages);
switch (type) {
+ default:
+ MISSING_CASE(type);
+ /* fallthrough to use PAGE_KERNEL anyway */
case I915_MAP_WB:
pgprot = PAGE_KERNEL;
break;
@@ -2583,9 +2588,13 @@ void *i915_gem_object_pin_map(struct drm_i915_gem_object *obj,
if (ret)
return ERR_PTR(ret);
- pinned = true;
+ pinned = !(type & I915_MAP_OVERRIDE);
+ type &= ~I915_MAP_OVERRIDE;
+
if (!atomic_inc_not_zero(&obj->mm.pages_pin_count)) {
if (unlikely(IS_ERR_OR_NULL(obj->mm.pages))) {
+ GEM_BUG_ON(i915_gem_object_has_pinned_pages(obj));
+
ret = ____i915_gem_object_get_pages(obj);
if (ret)
goto err_unlock;
@@ -3253,12 +3262,18 @@ void i915_gem_close_object(struct drm_gem_object *gem, struct drm_file *file)
struct i915_gem_context *ctx = lut->ctx;
struct i915_vma *vma;
+ GEM_BUG_ON(ctx->file_priv == ERR_PTR(-EBADF));
if (ctx->file_priv != fpriv)
continue;
vma = radix_tree_delete(&ctx->handles_vma, lut->handle);
+ GEM_BUG_ON(vma->obj != obj);
- if (!i915_vma_is_ggtt(vma))
+ /* We allow the process to have multiple handles to the same
+ * vma, in the same fd namespace, by virtue of flink/open.
+ */
+ GEM_BUG_ON(!vma->open_count);
+ if (!--vma->open_count && !i915_vma_is_ggtt(vma))
i915_vma_close(vma);
list_del(&lut->obj_link);
@@ -3365,24 +3380,12 @@ static int wait_for_timeline(struct i915_gem_timeline *tl, unsigned int flags)
return 0;
}
-static int wait_for_engine(struct intel_engine_cs *engine, int timeout_ms)
-{
- return wait_for(intel_engine_is_idle(engine), timeout_ms);
-}
-
static int wait_for_engines(struct drm_i915_private *i915)
{
- struct intel_engine_cs *engine;
- enum intel_engine_id id;
-
- for_each_engine(engine, i915, id) {
- if (GEM_WARN_ON(wait_for_engine(engine, 50))) {
- i915_gem_set_wedged(i915);
- return -EIO;
- }
-
- GEM_BUG_ON(intel_engine_get_seqno(engine) !=
- intel_engine_last_submit(engine));
+ if (wait_for(intel_engines_are_idle(i915), 50)) {
+ DRM_ERROR("Failed to idle engines, declaring wedged!\n");
+ i915_gem_set_wedged(i915);
+ return -EIO;
}
return 0;
@@ -4416,6 +4419,7 @@ static void __i915_gem_free_objects(struct drm_i915_private *i915,
llist_for_each_entry_safe(obj, on, freed, freed) {
GEM_BUG_ON(obj->bind_count);
GEM_BUG_ON(atomic_read(&obj->frontbuffer_bits));
+ GEM_BUG_ON(!list_empty(&obj->lut_list));
if (obj->ops->release)
obj->ops->release(obj);
@@ -4523,6 +4527,12 @@ static void assert_kernel_context_is_current(struct drm_i915_private *dev_priv)
void i915_gem_sanitize(struct drm_i915_private *i915)
{
+ if (i915_terminally_wedged(&i915->gpu_error)) {
+ mutex_lock(&i915->drm.struct_mutex);
+ i915_gem_unset_wedged(i915);
+ mutex_unlock(&i915->drm.struct_mutex);
+ }
+
/*
* If we inherit context state from the BIOS or earlier occupants
* of the GPU, the GPU may be in an inconsistent state when we
@@ -4562,7 +4572,7 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv)
ret = i915_gem_wait_for_idle(dev_priv,
I915_WAIT_INTERRUPTIBLE |
I915_WAIT_LOCKED);
- if (ret)
+ if (ret && ret != -EIO)
goto err_unlock;
assert_kernel_context_is_current(dev_priv);
@@ -4584,7 +4594,8 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv)
* reset the GPU back to its idle, low power state.
*/
WARN_ON(dev_priv->gt.awake);
- WARN_ON(!intel_engines_are_idle(dev_priv));
+ if (WARN_ON(!intel_engines_are_idle(dev_priv)))
+ i915_gem_set_wedged(dev_priv); /* no hope, discard everything */
/*
* Neither the BIOS, ourselves or any other kernel
@@ -4606,11 +4617,12 @@ int i915_gem_suspend(struct drm_i915_private *dev_priv)
* machine in an unusable condition.
*/
i915_gem_sanitize(dev_priv);
- goto out_rpm_put;
+
+ intel_runtime_pm_put(dev_priv);
+ return 0;
err_unlock:
mutex_unlock(&dev->struct_mutex);
-out_rpm_put:
intel_runtime_pm_put(dev_priv);
return ret;
}
@@ -5015,7 +5027,7 @@ int i915_gem_freeze_late(struct drm_i915_private *dev_priv)
* the objects as well, see i915_gem_freeze()
*/
- i915_gem_shrink(dev_priv, -1UL, I915_SHRINK_UNBOUND);
+ i915_gem_shrink(dev_priv, -1UL, NULL, I915_SHRINK_UNBOUND);
i915_gem_drain_freed_objects(dev_priv);
mutex_lock(&dev_priv->drm.struct_mutex);
generated by cgit v1.2.3 (git 2.46.0) at 2025-08-23 16:19:32 +0000