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drm/i915/execlists: Move insert_request() 

Move insert_request() earlier to avoid a forward declaration in a later
patch.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170916204414.32762-2-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2017-09-16 21:44:12 +01:00
parent 523e7c9278
commit 08dd3e1acc
1 changed files with 64 additions and 64 deletions
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128
drivers/gpu/drm/i915/intel_lrc.c
View File

@ -286,6 +286,70 @@ intel_lr_context_descriptor_update(struct i915_gem_context *ctx,
ce->lrc_desc = desc;
}
static bool
insert_request(struct intel_engine_cs *engine,
struct i915_priotree *pt,
int prio)
{
struct i915_priolist *p;
struct rb_node **parent, *rb;
bool first = true;
if (unlikely(engine->no_priolist))
prio = I915_PRIORITY_NORMAL;
find_priolist:
/* most positive priority is scheduled first, equal priorities fifo */
rb = NULL;
parent = &engine->execlist_queue.rb_node;
while (*parent) {
rb = *parent;
p = rb_entry(rb, typeof(*p), node);
if (prio > p->priority) {
parent = &rb->rb_left;
} else if (prio < p->priority) {
parent = &rb->rb_right;
first = false;
} else {
list_add_tail(&pt->link, &p->requests);
return false;
}
}
if (prio == I915_PRIORITY_NORMAL) {
p = &engine->default_priolist;
} else {
p = kmem_cache_alloc(engine->i915->priorities, GFP_ATOMIC);
/* Convert an allocation failure to a priority bump */
if (unlikely(!p)) {
prio = I915_PRIORITY_NORMAL; /* recurses just once */
/* To maintain ordering with all rendering, after an
* allocation failure we have to disable all scheduling.
* Requests will then be executed in fifo, and schedule
* will ensure that dependencies are emitted in fifo.
* There will be still some reordering with existing
* requests, so if userspace lied about their
* dependencies that reordering may be visible.
*/
engine->no_priolist = true;
goto find_priolist;
}
}
p->priority = prio;
rb_link_node(&p->node, rb, parent);
rb_insert_color(&p->node, &engine->execlist_queue);
INIT_LIST_HEAD(&p->requests);
list_add_tail(&pt->link, &p->requests);
if (first)
engine->execlist_first = &p->node;
return first;
}
static inline void
execlists_context_status_change(struct drm_i915_gem_request *rq,
unsigned long status)
@ -700,70 +764,6 @@ static void intel_lrc_irq_handler(unsigned long data)
intel_uncore_forcewake_put(dev_priv, engine->fw_domains);
}
static bool
insert_request(struct intel_engine_cs *engine,
struct i915_priotree *pt,
int prio)
{
struct i915_priolist *p;
struct rb_node **parent, *rb;
bool first = true;
if (unlikely(engine->no_priolist))
prio = I915_PRIORITY_NORMAL;
find_priolist:
/* most positive priority is scheduled first, equal priorities fifo */
rb = NULL;
parent = &engine->execlist_queue.rb_node;
while (*parent) {
rb = *parent;
p = rb_entry(rb, typeof(*p), node);
if (prio > p->priority) {
parent = &rb->rb_left;
} else if (prio < p->priority) {
parent = &rb->rb_right;
first = false;
} else {
list_add_tail(&pt->link, &p->requests);
return false;
}
}
if (prio == I915_PRIORITY_NORMAL) {
p = &engine->default_priolist;
} else {
p = kmem_cache_alloc(engine->i915->priorities, GFP_ATOMIC);
/* Convert an allocation failure to a priority bump */
if (unlikely(!p)) {
prio = I915_PRIORITY_NORMAL; /* recurses just once */
/* To maintain ordering with all rendering, after an
* allocation failure we have to disable all scheduling.
* Requests will then be executed in fifo, and schedule
* will ensure that dependencies are emitted in fifo.
* There will be still some reordering with existing
* requests, so if userspace lied about their
* dependencies that reordering may be visible.
*/
engine->no_priolist = true;
goto find_priolist;
}
}
p->priority = prio;
rb_link_node(&p->node, rb, parent);
rb_insert_color(&p->node, &engine->execlist_queue);
INIT_LIST_HEAD(&p->requests);
list_add_tail(&pt->link, &p->requests);
if (first)
engine->execlist_first = &p->node;
return first;
}
static void execlists_submit_request(struct drm_i915_gem_request *request)
{
struct intel_engine_cs *engine = request->engine;