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-rw-r--r--drivers/gpu/drm/i915/i915_gem_gtt.c5
-rw-r--r--drivers/gpu/drm/i915/i915_gpu_error.c14
-rw-r--r--drivers/gpu/drm/i915/i915_gpu_error.h2
-rw-r--r--drivers/gpu/drm/i915/i915_request.h1
-rw-r--r--drivers/gpu/drm/i915/i915_vma.c112
-rw-r--r--drivers/gpu/drm/i915/i915_vma.h46
6 files changed, 100 insertions, 80 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index e2793231ef49..4db31aaaa9d3 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2074,7 +2074,6 @@ static struct i915_vma *pd_vma_create(struct gen6_hw_ppgtt *ppgtt, int size)
struct drm_i915_private *i915 = ppgtt->base.vm.i915;
struct i915_ggtt *ggtt = &i915->ggtt;
struct i915_vma *vma;
- int i;
GEM_BUG_ON(!IS_ALIGNED(size, I915_GTT_PAGE_SIZE));
GEM_BUG_ON(size > ggtt->vm.total);
@@ -2083,14 +2082,14 @@ static struct i915_vma *pd_vma_create(struct gen6_hw_ppgtt *ppgtt, int size)
if (!vma)
return ERR_PTR(-ENOMEM);
- for (i = 0; i < ARRAY_SIZE(vma->last_read); i++)
- init_request_active(&vma->last_read[i], NULL);
init_request_active(&vma->last_fence, NULL);
vma->vm = &ggtt->vm;
vma->ops = &pd_vma_ops;
vma->private = ppgtt;
+ vma->active = RB_ROOT;
+
vma->size = size;
vma->fence_size = size;
vma->flags = I915_VMA_GGTT;
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index df524c9cad40..8c81cf3aa182 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -335,21 +335,16 @@ static void print_error_buffers(struct drm_i915_error_state_buf *m,
struct drm_i915_error_buffer *err,
int count)
{
- int i;
-
err_printf(m, "%s [%d]:\n", name, count);
while (count--) {
- err_printf(m, " %08x_%08x %8u %02x %02x [ ",
+ err_printf(m, " %08x_%08x %8u %02x %02x %02x",
upper_32_bits(err->gtt_offset),
lower_32_bits(err->gtt_offset),
err->size,
err->read_domains,
- err->write_domain);
- for (i = 0; i < I915_NUM_ENGINES; i++)
- err_printf(m, "%02x ", err->rseqno[i]);
-
- err_printf(m, "] %02x", err->wseqno);
+ err->write_domain,
+ err->wseqno);
err_puts(m, tiling_flag(err->tiling));
err_puts(m, dirty_flag(err->dirty));
err_puts(m, purgeable_flag(err->purgeable));
@@ -1021,13 +1016,10 @@ static void capture_bo(struct drm_i915_error_buffer *err,
struct i915_vma *vma)
{
struct drm_i915_gem_object *obj = vma->obj;
- int i;
err->size = obj->base.size;
err->name = obj->base.name;
- for (i = 0; i < I915_NUM_ENGINES; i++)
- err->rseqno[i] = __active_get_seqno(&vma->last_read[i]);
err->wseqno = __active_get_seqno(&obj->frontbuffer_write);
err->engine = __active_get_engine_id(&obj->frontbuffer_write);
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.h b/drivers/gpu/drm/i915/i915_gpu_error.h
index 58910f1dc67c..f893a4e8b783 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.h
+++ b/drivers/gpu/drm/i915/i915_gpu_error.h
@@ -177,7 +177,7 @@ struct i915_gpu_state {
struct drm_i915_error_buffer {
u32 size;
u32 name;
- u32 rseqno[I915_NUM_ENGINES], wseqno;
+ u32 wseqno;
u64 gtt_offset;
u32 read_domains;
u32 write_domain;
diff --git a/drivers/gpu/drm/i915/i915_request.h b/drivers/gpu/drm/i915/i915_request.h
index a355a081485f..e1c9365dfefb 100644
--- a/drivers/gpu/drm/i915/i915_request.h
+++ b/drivers/gpu/drm/i915/i915_request.h
@@ -380,6 +380,7 @@ static inline void
init_request_active(struct i915_gem_active *active,
i915_gem_retire_fn retire)
{
+ RCU_INIT_POINTER(active->request, NULL);
INIT_LIST_HEAD(&active->link);
active->retire = retire ?: i915_gem_retire_noop;
}
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index 6f3a0f2296c2..b4cc98330225 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -63,18 +63,20 @@ static void vma_print_allocator(struct i915_vma *vma, const char *reason)
#endif
+struct i915_vma_active {
+ struct i915_gem_active base;
+ struct i915_vma *vma;
+ struct rb_node node;
+ u64 timeline;
+};
+
static void
-i915_vma_retire(struct i915_gem_active *active, struct i915_request *rq)
+__i915_vma_retire(struct i915_vma *vma, struct i915_request *rq)
{
- const unsigned int idx = rq->engine->id;
- struct i915_vma *vma =
- container_of(active, struct i915_vma, last_read[idx]);
struct drm_i915_gem_object *obj = vma->obj;
- GEM_BUG_ON(!i915_vma_has_active_engine(vma, idx));
-
- i915_vma_clear_active(vma, idx);
- if (i915_vma_is_active(vma))
+ GEM_BUG_ON(!i915_vma_is_active(vma));
+ if (--vma->active_count)
return;
GEM_BUG_ON(!drm_mm_node_allocated(&vma->node));
@@ -108,6 +110,15 @@ i915_vma_retire(struct i915_gem_active *active, struct i915_request *rq)
}
}
+static void
+i915_vma_retire(struct i915_gem_active *base, struct i915_request *rq)
+{
+ struct i915_vma_active *active =
+ container_of(base, typeof(*active), base);
+
+ __i915_vma_retire(active->vma, rq);
+}
+
static struct i915_vma *
vma_create(struct drm_i915_gem_object *obj,
struct i915_address_space *vm,
@@ -115,7 +126,6 @@ vma_create(struct drm_i915_gem_object *obj,
{
struct i915_vma *vma;
struct rb_node *rb, **p;
- int i;
/* The aliasing_ppgtt should never be used directly! */
GEM_BUG_ON(vm == &vm->i915->mm.aliasing_ppgtt->vm);
@@ -124,8 +134,8 @@ vma_create(struct drm_i915_gem_object *obj,
if (vma == NULL)
return ERR_PTR(-ENOMEM);
- for (i = 0; i < ARRAY_SIZE(vma->last_read); i++)
- init_request_active(&vma->last_read[i], i915_vma_retire);
+ vma->active = RB_ROOT;
+
init_request_active(&vma->last_fence, NULL);
vma->vm = vm;
vma->ops = &vm->vma_ops;
@@ -778,13 +788,11 @@ void i915_vma_reopen(struct i915_vma *vma)
static void __i915_vma_destroy(struct i915_vma *vma)
{
struct drm_i915_private *i915 = vma->vm->i915;
- int i;
+ struct i915_vma_active *iter, *n;
GEM_BUG_ON(vma->node.allocated);
GEM_BUG_ON(vma->fence);
- for (i = 0; i < ARRAY_SIZE(vma->last_read); i++)
- GEM_BUG_ON(i915_gem_active_isset(&vma->last_read[i]));
GEM_BUG_ON(i915_gem_active_isset(&vma->last_fence));
list_del(&vma->obj_link);
@@ -795,6 +803,11 @@ static void __i915_vma_destroy(struct i915_vma *vma)
if (!i915_vma_is_ggtt(vma))
i915_ppgtt_put(i915_vm_to_ppgtt(vma->vm));
+ rbtree_postorder_for_each_entry_safe(iter, n, &vma->active, node) {
+ GEM_BUG_ON(i915_gem_active_isset(&iter->base));
+ kfree(iter);
+ }
+
kmem_cache_free(i915->vmas, vma);
}
@@ -878,16 +891,54 @@ static void export_fence(struct i915_vma *vma,
reservation_object_unlock(resv);
}
+static struct i915_gem_active *active_instance(struct i915_vma *vma, u64 idx)
+{
+ struct i915_vma_active *active;
+ struct rb_node **p, *parent;
+
+ parent = NULL;
+ p = &vma->active.rb_node;
+ while (*p) {
+ parent = *p;
+
+ active = rb_entry(parent, struct i915_vma_active, node);
+ if (active->timeline == idx)
+ return &active->base;
+
+ if (active->timeline < idx)
+ p = &parent->rb_right;
+ else
+ p = &parent->rb_left;
+ }
+
+ active = kmalloc(sizeof(*active), GFP_KERNEL);
+ if (unlikely(!active))
+ return ERR_PTR(-ENOMEM);
+
+ init_request_active(&active->base, i915_vma_retire);
+ active->vma = vma;
+ active->timeline = idx;
+
+ rb_link_node(&active->node, parent, p);
+ rb_insert_color(&active->node, &vma->active);
+
+ return &active->base;
+}
+
int i915_vma_move_to_active(struct i915_vma *vma,
struct i915_request *rq,
unsigned int flags)
{
struct drm_i915_gem_object *obj = vma->obj;
- const unsigned int idx = rq->engine->id;
+ struct i915_gem_active *active;
lockdep_assert_held(&rq->i915->drm.struct_mutex);
GEM_BUG_ON(!drm_mm_node_allocated(&vma->node));
+ active = active_instance(vma, rq->fence.context);
+ if (IS_ERR(active))
+ return PTR_ERR(active);
+
/*
* Add a reference if we're newly entering the active list.
* The order in which we add operations to the retirement queue is
@@ -896,11 +947,13 @@ int i915_vma_move_to_active(struct i915_vma *vma,
* add the active reference first and queue for it to be dropped
* *last*.
*/
- if (!i915_vma_is_active(vma))
+ if (!i915_gem_active_isset(active) && !vma->active_count++) {
+ list_move_tail(&vma->vm_link, &vma->vm->active_list);
obj->active_count++;
- i915_vma_set_active(vma, idx);
- i915_gem_active_set(&vma->last_read[idx], rq);
- list_move_tail(&vma->vm_link, &vma->vm->active_list);
+ }
+ i915_gem_active_set(active, rq);
+ GEM_BUG_ON(!i915_vma_is_active(vma));
+ GEM_BUG_ON(!obj->active_count);
obj->write_domain = 0;
if (flags & EXEC_OBJECT_WRITE) {
@@ -922,7 +975,6 @@ int i915_vma_move_to_active(struct i915_vma *vma,
int i915_vma_unbind(struct i915_vma *vma)
{
- unsigned long active;
int ret;
lockdep_assert_held(&vma->vm->i915->drm.struct_mutex);
@@ -932,9 +984,8 @@ int i915_vma_unbind(struct i915_vma *vma)
* have side-effects such as unpinning or even unbinding this vma.
*/
might_sleep();
- active = i915_vma_get_active(vma);
- if (active) {
- int idx;
+ if (i915_vma_is_active(vma)) {
+ struct i915_vma_active *active, *n;
/*
* When a closed VMA is retired, it is unbound - eek.
@@ -951,18 +1002,17 @@ int i915_vma_unbind(struct i915_vma *vma)
*/
__i915_vma_pin(vma);
- for_each_active(active, idx) {
- ret = i915_gem_active_retire(&vma->last_read[idx],
+ rbtree_postorder_for_each_entry_safe(active, n,
+ &vma->active, node) {
+ ret = i915_gem_active_retire(&active->base,
&vma->vm->i915->drm.struct_mutex);
if (ret)
- break;
- }
-
- if (!ret) {
- ret = i915_gem_active_retire(&vma->last_fence,
- &vma->vm->i915->drm.struct_mutex);
+ goto unpin;
}
+ ret = i915_gem_active_retire(&vma->last_fence,
+ &vma->vm->i915->drm.struct_mutex);
+unpin:
__i915_vma_unpin(vma);
if (ret)
return ret;
diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h
index a218b689e418..c297b0a0dc47 100644
--- a/drivers/gpu/drm/i915/i915_vma.h
+++ b/drivers/gpu/drm/i915/i915_vma.h
@@ -26,6 +26,7 @@
#define __I915_VMA_H__
#include <linux/io-mapping.h>
+#include <linux/rbtree.h>
#include <drm/drm_mm.h>
@@ -94,8 +95,8 @@ struct i915_vma {
#define I915_VMA_USERFAULT BIT(I915_VMA_USERFAULT_BIT)
#define I915_VMA_GGTT_WRITE BIT(12)
- unsigned int active;
- struct i915_gem_active last_read[I915_NUM_ENGINES];
+ unsigned int active_count;
+ struct rb_root active;
struct i915_gem_active last_fence;
/**
@@ -138,6 +139,15 @@ i915_vma_instance(struct drm_i915_gem_object *obj,
void i915_vma_unpin_and_release(struct i915_vma **p_vma);
+static inline bool i915_vma_is_active(struct i915_vma *vma)
+{
+ return vma->active_count;
+}
+
+int __must_check i915_vma_move_to_active(struct i915_vma *vma,
+ struct i915_request *rq,
+ unsigned int flags);
+
static inline bool i915_vma_is_ggtt(const struct i915_vma *vma)
{
return vma->flags & I915_VMA_GGTT;
@@ -187,38 +197,6 @@ static inline bool i915_vma_has_userfault(const struct i915_vma *vma)
return test_bit(I915_VMA_USERFAULT_BIT, &vma->flags);
}
-static inline unsigned int i915_vma_get_active(const struct i915_vma *vma)
-{
- return vma->active;
-}
-
-static inline bool i915_vma_is_active(const struct i915_vma *vma)
-{
- return i915_vma_get_active(vma);
-}
-
-static inline void i915_vma_set_active(struct i915_vma *vma,
- unsigned int engine)
-{
- vma->active |= BIT(engine);
-}
-
-static inline void i915_vma_clear_active(struct i915_vma *vma,
- unsigned int engine)
-{
- vma->active &= ~BIT(engine);
-}
-
-static inline bool i915_vma_has_active_engine(const struct i915_vma *vma,
- unsigned int engine)
-{
- return vma->active & BIT(engine);
-}
-
-int __must_check i915_vma_move_to_active(struct i915_vma *vma,
- struct i915_request *rq,
- unsigned int flags);
-
static inline u32 i915_ggtt_offset(const struct i915_vma *vma)
{
GEM_BUG_ON(!i915_vma_is_ggtt(vma));
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.