[Intel-gfx] [PATCH v4] drm/i915: Add null state batch to active list
Mika Kuoppala
mika.kuoppala at linux.intel.com
Wed May 21 18:01:06 CEST 2014
From: Mika Kuoppala <mika.kuoppala at linux.intel.com>
for proper refcounting to take place as we use
i915_add_request() for it.
i915_add_request() also takes the context for the request
from ring->last_context so move the null state batch
submission after the ring context has been set.
v2: we need to check for correct ring now (Ville Syrjälä)
v3: no need to expose i915_gem_move_object_to_active (Chris Wilson)
v4: cargoculted vma/active/inactive error handling removed (Chris Wilson)
Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Damien Lespiau <damien.lespiau at intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala at intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
drivers/gpu/drm/i915/i915_gem_context.c | 16 ++++++++--------
drivers/gpu/drm/i915/i915_gem_render_state.c | 8 ++++++--
2 files changed, 14 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index f220c94..6a2d847a 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -700,21 +700,21 @@ static int do_switch(struct intel_ring_buffer *ring,
/* obj is kept alive until the next request by its active ref */
i915_gem_object_ggtt_unpin(from->obj);
i915_gem_context_unreference(from);
- } else {
- if (to->is_initialized == false) {
- ret = i915_gem_render_state_init(ring);
- if (ret)
- DRM_ERROR("init render state: %d\n", ret);
- }
}
- to->is_initialized = true;
-
done:
i915_gem_context_reference(to);
ring->last_context = to;
to->last_ring = ring;
+ if (ring->id == RCS && !to->is_initialized && from == NULL) {
+ ret = i915_gem_render_state_init(ring);
+ if (ret)
+ DRM_ERROR("init render state: %d\n", ret);
+ }
+
+ to->is_initialized = true;
+
return 0;
unpin_out:
diff --git a/drivers/gpu/drm/i915/i915_gem_render_state.c b/drivers/gpu/drm/i915/i915_gem_render_state.c
index 392aa7b..cfbf6fc 100644
--- a/drivers/gpu/drm/i915/i915_gem_render_state.c
+++ b/drivers/gpu/drm/i915/i915_gem_render_state.c
@@ -164,9 +164,11 @@ int i915_gem_render_state_init(struct intel_ring_buffer *ring)
const int gen = INTEL_INFO(ring->dev)->gen;
struct i915_render_state *so;
const struct intel_renderstate_rodata *rodata;
- u32 seqno;
int ret;
+ if (WARN_ON(ring->id != RCS))
+ return -ENOENT;
+
rodata = render_state_get_rodata(ring->dev, gen);
if (rodata == NULL)
return 0;
@@ -186,8 +188,10 @@ int i915_gem_render_state_init(struct intel_ring_buffer *ring)
if (ret)
goto out;
- ret = i915_add_request(ring, &seqno);
+ i915_vma_move_to_active(i915_gem_obj_to_ggtt(so->obj), ring);
+ ret = __i915_add_request(ring, NULL, so->obj, NULL);
+ /* __i915_add_request moves object to inactive if it fails */
out:
render_state_free(so);
return ret;
--
1.7.9.5
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