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drm/i915: Remove fenced_gpu_access and pending_fenced_gpu_access

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This migrates the fence tracking onto the existing seqno
infrastructure so that the later conversion to tracking via requests is
simplified.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Chris Wilson 2014-08-09 17:37:24 +01:00 committed by Daniel Vetter
parent e6a844687c
commit 82b6b6d786
4 changed files with 20 additions and 40 deletions
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7
drivers/gpu/drm/i915/i915_drv.h
View File

@ -1777,13 +1777,6 @@ struct drm_i915_gem_object {
* Only honoured if hardware has relevant pte bit
*/
unsigned long gt_ro:1;
/*
* Is the GPU currently using a fence to access this buffer,
*/
unsigned int pending_fenced_gpu_access:1;
unsigned int fenced_gpu_access:1;
unsigned int cache_level:3;
unsigned int has_aliasing_ppgtt_mapping:1;

17
drivers/gpu/drm/i915/i915_gem.c
View File

@ -2161,8 +2161,6 @@ static void
i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
struct intel_engine_cs *ring)
{
struct drm_device *dev = obj->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
u32 seqno = intel_ring_get_seqno(ring);
BUG_ON(ring == NULL);
@ -2181,19 +2179,6 @@ i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
list_move_tail(&obj->ring_list, &ring->active_list);
obj->last_read_seqno = seqno;
if (obj->fenced_gpu_access) {
obj->last_fenced_seqno = seqno;
/* Bump MRU to take account of the delayed flush */
if (obj->fence_reg != I915_FENCE_REG_NONE) {
struct drm_i915_fence_reg *reg;
reg = &dev_priv->fence_regs[obj->fence_reg];
list_move_tail(&reg->lru_list,
&dev_priv->mm.fence_list);
}
}
}
void i915_vma_move_to_active(struct i915_vma *vma,
@ -2229,7 +2214,6 @@ i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj)
obj->base.write_domain = 0;
obj->last_fenced_seqno = 0;
obj->fenced_gpu_access = false;
obj->active = 0;
drm_gem_object_unreference(&obj->base);
@ -3174,7 +3158,6 @@ i915_gem_object_wait_fence(struct drm_i915_gem_object *obj)
obj->last_fenced_seqno = 0;
}
obj->fenced_gpu_access = false;
return 0;
}

34
drivers/gpu/drm/i915/i915_gem_execbuffer.c
View File

@ -542,7 +542,6 @@ i915_gem_execbuffer_reserve_vma(struct i915_vma *vma,
{
struct drm_i915_gem_object *obj = vma->obj;
struct drm_i915_gem_exec_object2 *entry = vma->exec_entry;
bool has_fenced_gpu_access = INTEL_INFO(ring->dev)->gen < 4;
uint64_t flags;
int ret;
@ -560,17 +559,13 @@ i915_gem_execbuffer_reserve_vma(struct i915_vma *vma,
entry->flags |= __EXEC_OBJECT_HAS_PIN;
if (has_fenced_gpu_access) {
if (entry->flags & EXEC_OBJECT_NEEDS_FENCE) {
ret = i915_gem_object_get_fence(obj);
if (ret)
return ret;
if (entry->flags & EXEC_OBJECT_NEEDS_FENCE) {
ret = i915_gem_object_get_fence(obj);
if (ret)
return ret;
if (i915_gem_object_pin_fence(obj))
entry->flags |= __EXEC_OBJECT_HAS_FENCE;
obj->pending_fenced_gpu_access = true;
}
if (i915_gem_object_pin_fence(obj))
entry->flags |= __EXEC_OBJECT_HAS_FENCE;
}
if (entry->offset != vma->node.start) {
@ -658,8 +653,9 @@ i915_gem_execbuffer_reserve(struct intel_engine_cs *ring,
obj = vma->obj;
entry = vma->exec_entry;
if (!has_fenced_gpu_access)
entry->flags &= ~EXEC_OBJECT_NEEDS_FENCE;
need_fence =
has_fenced_gpu_access &&
entry->flags & EXEC_OBJECT_NEEDS_FENCE &&
obj->tiling_mode != I915_TILING_NONE;
need_mappable = need_fence || need_reloc_mappable(vma);
@ -672,7 +668,6 @@ i915_gem_execbuffer_reserve(struct intel_engine_cs *ring,
obj->base.pending_read_domains = I915_GEM_GPU_DOMAINS & ~I915_GEM_DOMAIN_COMMAND;
obj->base.pending_write_domain = 0;
obj->pending_fenced_gpu_access = false;
}
list_splice(&ordered_vmas, vmas);
@ -959,9 +954,11 @@ static void
i915_gem_execbuffer_move_to_active(struct list_head *vmas,
struct intel_engine_cs *ring)
{
u32 seqno = intel_ring_get_seqno(ring);
struct i915_vma *vma;
list_for_each_entry(vma, vmas, exec_list) {
struct drm_i915_gem_exec_object2 *entry = vma->exec_entry;
struct drm_i915_gem_object *obj = vma->obj;
u32 old_read = obj->base.read_domains;
u32 old_write = obj->base.write_domain;
@ -970,18 +967,25 @@ i915_gem_execbuffer_move_to_active(struct list_head *vmas,
if (obj->base.write_domain == 0)
obj->base.pending_read_domains |= obj->base.read_domains;
obj->base.read_domains = obj->base.pending_read_domains;
obj->fenced_gpu_access = obj->pending_fenced_gpu_access;
i915_vma_move_to_active(vma, ring);
if (obj->base.write_domain) {
obj->dirty = 1;
obj->last_write_seqno = intel_ring_get_seqno(ring);
obj->last_write_seqno = seqno;
intel_fb_obj_invalidate(obj, ring);
/* update for the implicit flush after a batch */
obj->base.write_domain &= ~I915_GEM_GPU_DOMAINS;
}
if (entry->flags & EXEC_OBJECT_NEEDS_FENCE) {
obj->last_fenced_seqno = seqno;
if (entry->flags & __EXEC_OBJECT_HAS_FENCE) {
struct drm_i915_private *dev_priv = to_i915(ring->dev);
list_move_tail(&dev_priv->fence_regs[obj->fence_reg].lru_list,
&dev_priv->mm.fence_list);
}
}
trace_i915_gem_object_change_domain(obj, old_read, old_write);
}

2
drivers/gpu/drm/i915/i915_gem_tiling.c
View File

@ -376,7 +376,7 @@ i915_gem_set_tiling(struct drm_device *dev, void *data,
if (ret == 0) {
obj->fence_dirty =
obj->fenced_gpu_access ||
obj->last_fenced_seqno ||
obj->fence_reg != I915_FENCE_REG_NONE;
obj->tiling_mode = args->tiling_mode;