[Intel-gfx] [PATCH 10/12] drm/i915: Rename helpers used for unwinding, use macro for can_preempt
Michał Winiarski
michal.winiarski at intel.com
Mon Oct 9 14:52:56 UTC 2017
We would also like to make use of execlist_cancel_port_requests and
unwind_incomplete_requests in GuC preemption backend.
Let's rename the functions to use the correct prefixes, so that we can
simply add the declarations in the following patch.
Similar thing for applies for can_preempt, except we're introducing
HAS_LOGICAL_RING_PREEMPTION macro instad, converting other users that
were previously touching device info directly.
Signed-off-by: Michał Winiarski <michal.winiarski at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko at intel.com>
---
drivers/gpu/drm/i915/i915_drv.c | 2 +-
drivers/gpu/drm/i915/i915_drv.h | 2 ++
drivers/gpu/drm/i915/intel_engine_cs.c | 6 +++---
drivers/gpu/drm/i915/intel_lrc.c | 21 ++++++++-------------
4 files changed, 14 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 66fc156b294a..78120a5d40f9 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -372,7 +372,7 @@ static int i915_getparam(struct drm_device *dev, void *data,
value |= I915_SCHEDULER_CAP_ENABLED;
value |= I915_SCHEDULER_CAP_PRIORITY;
- if (INTEL_INFO(dev_priv)->has_logical_ring_preemption &&
+ if (HAS_LOGICAL_RING_PREEMPTION(dev_priv) &&
i915_modparams.enable_execlists &&
!i915_modparams.enable_guc_submission)
value |= I915_SCHEDULER_CAP_PREEMPTION;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 799a90abd81f..d75dd54a0073 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3113,6 +3113,8 @@ intel_info(const struct drm_i915_private *dev_priv)
#define HAS_LOGICAL_RING_CONTEXTS(dev_priv) \
((dev_priv)->info.has_logical_ring_contexts)
+#define HAS_LOGICAL_RING_PREEMPTION(dev_priv) \
+ ((dev_priv)->info.has_logical_ring_preemption)
#define USES_PPGTT(dev_priv) (i915_modparams.enable_ppgtt)
#define USES_FULL_PPGTT(dev_priv) (i915_modparams.enable_ppgtt >= 2)
#define USES_FULL_48BIT_PPGTT(dev_priv) (i915_modparams.enable_ppgtt == 3)
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index 807a7aafc089..9a6176a207aa 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -617,7 +617,7 @@ int intel_engine_init_common(struct intel_engine_cs *engine)
* Similarly the preempt context must always be available so that
* we can interrupt the engine at any time.
*/
- if (INTEL_INFO(engine->i915)->has_logical_ring_preemption) {
+ if (HAS_LOGICAL_RING_PREEMPTION(engine->i915)) {
ring = engine->context_pin(engine,
engine->i915->preempt_context);
if (IS_ERR(ring)) {
@@ -648,7 +648,7 @@ int intel_engine_init_common(struct intel_engine_cs *engine)
err_breadcrumbs:
intel_engine_fini_breadcrumbs(engine);
err_unpin_preempt:
- if (INTEL_INFO(engine->i915)->has_logical_ring_preemption)
+ if (HAS_LOGICAL_RING_PREEMPTION(engine->i915))
engine->context_unpin(engine, engine->i915->preempt_context);
err_unpin_kernel:
engine->context_unpin(engine, engine->i915->kernel_context);
@@ -676,7 +676,7 @@ void intel_engine_cleanup_common(struct intel_engine_cs *engine)
intel_engine_cleanup_cmd_parser(engine);
i915_gem_batch_pool_fini(&engine->batch_pool);
- if (INTEL_INFO(engine->i915)->has_logical_ring_preemption)
+ if (HAS_LOGICAL_RING_PREEMPTION(engine->i915))
engine->context_unpin(engine, engine->i915->preempt_context);
engine->context_unpin(engine, engine->i915->kernel_context);
}
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 9a7aec2c1771..4f9f12e3c7f6 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -354,7 +354,7 @@ static void unwind_wa_tail(struct drm_i915_gem_request *rq)
assert_ring_tail_valid(rq->ring, rq->tail);
}
-static void unwind_incomplete_requests(struct intel_engine_cs *engine)
+static void intel_engine_unwind_incomplete_requests(struct intel_engine_cs *engine)
{
struct drm_i915_gem_request *rq, *rn;
struct i915_priolist *uninitialized_var(p);
@@ -515,11 +515,6 @@ static void inject_preempt_context(struct intel_engine_cs *engine)
elsp_write(ce->lrc_desc, elsp);
}
-static bool can_preempt(struct intel_engine_cs *engine)
-{
- return INTEL_INFO(engine->i915)->has_logical_ring_preemption;
-}
-
static void execlists_dequeue(struct intel_engine_cs *engine)
{
struct intel_engine_execlists * const execlists = &engine->execlists;
@@ -567,7 +562,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
if (port_count(&port[0]) > 1)
goto unlock;
- if (can_preempt(engine) &&
+ if (HAS_LOGICAL_RING_PREEMPTION(engine->i915) &&
rb_entry(rb, struct i915_priolist, node)->priority >
max(last->priotree.priority, 0)) {
/*
@@ -688,7 +683,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
}
static void
-execlist_cancel_port_requests(struct intel_engine_execlists *execlists)
+execlists_cancel_port_requests(struct intel_engine_execlists * const execlists)
{
struct execlist_port *port = execlists->port;
unsigned int num_ports = ARRAY_SIZE(execlists->port);
@@ -714,7 +709,7 @@ static void execlists_cancel_requests(struct intel_engine_cs *engine)
spin_lock_irqsave(&engine->timeline->lock, flags);
/* Cancel the requests on the HW and clear the ELSP tracker. */
- execlist_cancel_port_requests(execlists);
+ execlists_cancel_port_requests(execlists);
/* Mark all executing requests as skipped. */
list_for_each_entry(rq, &engine->timeline->requests, link) {
@@ -856,10 +851,10 @@ static void intel_lrc_irq_handler(unsigned long data)
if (status & GEN8_CTX_STATUS_ACTIVE_IDLE &&
buf[2*head + 1] == PREEMPT_ID) {
- execlist_cancel_port_requests(execlists);
+ execlists_cancel_port_requests(execlists);
spin_lock_irq(&engine->timeline->lock);
- unwind_incomplete_requests(engine);
+ intel_engine_unwind_incomplete_requests(engine);
spin_unlock_irq(&engine->timeline->lock);
GEM_BUG_ON(!execlists->preempt);
@@ -1519,10 +1514,10 @@ static void reset_common_ring(struct intel_engine_cs *engine,
* guessing the missed context-switch events by looking at what
* requests were completed.
*/
- execlist_cancel_port_requests(execlists);
+ execlists_cancel_port_requests(execlists);
/* Push back any incomplete requests for replay after the reset. */
- unwind_incomplete_requests(engine);
+ intel_engine_unwind_incomplete_requests(engine);
spin_unlock_irqrestore(&engine->timeline->lock, flags);
--
2.13.5
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