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path: root/drivers/gpu/drm/i915/i915_gem_context.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_context.c')
-rw-r--r--drivers/gpu/drm/i915/i915_gem_context.c65
1 files changed, 32 insertions, 33 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index a21c3dccf436..1eb48faf741b 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -97,8 +97,7 @@
static struct i915_hw_context *
i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id);
-static int do_switch(struct drm_i915_gem_object *from_obj,
- struct i915_hw_context *to, u32 seqno);
+static int do_switch(struct i915_hw_context *to);
static int get_context_size(struct drm_device *dev)
{
@@ -113,7 +112,10 @@ static int get_context_size(struct drm_device *dev)
break;
case 7:
reg = I915_READ(GEN7_CXT_SIZE);
- ret = GEN7_CXT_TOTAL_SIZE(reg) * 64;
+ if (IS_HASWELL(dev))
+ ret = HSW_CXT_TOTAL_SIZE(reg) * 64;
+ else
+ ret = GEN7_CXT_TOTAL_SIZE(reg) * 64;
break;
default:
BUG();
@@ -219,20 +221,21 @@ static int create_default_context(struct drm_i915_private *dev_priv)
* default context.
*/
dev_priv->ring[RCS].default_context = ctx;
- ret = i915_gem_object_pin(ctx->obj, CONTEXT_ALIGN, false);
- if (ret) {
- do_destroy(ctx);
- return ret;
- }
+ ret = i915_gem_object_pin(ctx->obj, CONTEXT_ALIGN, false, false);
+ if (ret)
+ goto err_destroy;
- ret = do_switch(NULL, ctx, 0);
- if (ret) {
- i915_gem_object_unpin(ctx->obj);
- do_destroy(ctx);
- } else {
- DRM_DEBUG_DRIVER("Default HW context loaded\n");
- }
+ ret = do_switch(ctx);
+ if (ret)
+ goto err_unpin;
+ DRM_DEBUG_DRIVER("Default HW context loaded\n");
+ return 0;
+
+err_unpin:
+ i915_gem_object_unpin(ctx->obj);
+err_destroy:
+ do_destroy(ctx);
return ret;
}
@@ -359,18 +362,19 @@ mi_set_context(struct intel_ring_buffer *ring,
return ret;
}
-static int do_switch(struct drm_i915_gem_object *from_obj,
- struct i915_hw_context *to,
- u32 seqno)
+static int do_switch(struct i915_hw_context *to)
{
- struct intel_ring_buffer *ring = NULL;
+ struct intel_ring_buffer *ring = to->ring;
+ struct drm_i915_gem_object *from_obj = ring->last_context_obj;
u32 hw_flags = 0;
int ret;
- BUG_ON(to == NULL);
BUG_ON(from_obj != NULL && from_obj->pin_count == 0);
- ret = i915_gem_object_pin(to->obj, CONTEXT_ALIGN, false);
+ if (from_obj == to->obj)
+ return 0;
+
+ ret = i915_gem_object_pin(to->obj, CONTEXT_ALIGN, false, false);
if (ret)
return ret;
@@ -393,7 +397,6 @@ static int do_switch(struct drm_i915_gem_object *from_obj,
else if (WARN_ON_ONCE(from_obj == to->obj)) /* not yet expected */
hw_flags |= MI_FORCE_RESTORE;
- ring = to->ring;
ret = mi_set_context(ring, to, hw_flags);
if (ret) {
i915_gem_object_unpin(to->obj);
@@ -407,6 +410,7 @@ static int do_switch(struct drm_i915_gem_object *from_obj,
* MI_SET_CONTEXT instead of when the next seqno has completed.
*/
if (from_obj != NULL) {
+ u32 seqno = i915_gem_next_request_seqno(ring);
from_obj->base.read_domains = I915_GEM_DOMAIN_INSTRUCTION;
i915_gem_object_move_to_active(from_obj, ring, seqno);
/* As long as MI_SET_CONTEXT is serializing, ie. it flushes the
@@ -417,7 +421,7 @@ static int do_switch(struct drm_i915_gem_object *from_obj,
* swapped, but there is no way to do that yet.
*/
from_obj->dirty = 1;
- BUG_ON(from_obj->ring != to->ring);
+ BUG_ON(from_obj->ring != ring);
i915_gem_object_unpin(from_obj);
drm_gem_object_unreference(&from_obj->base);
@@ -448,9 +452,7 @@ int i915_switch_context(struct intel_ring_buffer *ring,
int to_id)
{
struct drm_i915_private *dev_priv = ring->dev->dev_private;
- struct drm_i915_file_private *file_priv = NULL;
struct i915_hw_context *to;
- struct drm_i915_gem_object *from_obj = ring->last_context_obj;
if (dev_priv->hw_contexts_disabled)
return 0;
@@ -458,21 +460,18 @@ int i915_switch_context(struct intel_ring_buffer *ring,
if (ring != &dev_priv->ring[RCS])
return 0;
- if (file)
- file_priv = file->driver_priv;
-
if (to_id == DEFAULT_CONTEXT_ID) {
to = ring->default_context;
} else {
- to = i915_gem_context_get(file_priv, to_id);
+ if (file == NULL)
+ return -EINVAL;
+
+ to = i915_gem_context_get(file->driver_priv, to_id);
if (to == NULL)
return -ENOENT;
}
- if (from_obj == to->obj)
- return 0;
-
- return do_switch(from_obj, to, i915_gem_next_request_seqno(to->ring));
+ return do_switch(to);
}
int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,