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Subject[PATCH] drm/i915/gt: use new tasklet API for execution list
Date
From: Emil Renner Berthing <kernel@esmil.dk>

This converts the driver to use the new tasklet API introduced in
commit 12cc923f1ccc ("tasklet: Introduce new initialization API")

Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>

---
Tested on my Dell XPS 13 9300.

drivers/gpu/drm/i915/gt/intel_engine_cs.c | 4 +--
drivers/gpu/drm/i915/gt/intel_lrc.c | 27 +++++++++----------
drivers/gpu/drm/i915/gt/selftest_lrc.c | 4 +--
.../gpu/drm/i915/gt/uc/intel_guc_submission.c | 6 ++---
4 files changed, 19 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_engine_cs.c b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
index 0b31670343f5..a97a80ca0ba7 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/gt/intel_engine_cs.c
@@ -1193,7 +1193,7 @@ void intel_engine_flush_submission(struct intel_engine_cs *engine)
{
struct tasklet_struct *t = &engine->execlists.tasklet;

- if (!t->func)
+ if (!t->callback)
return;

/* Synchronise and wait for the tasklet on another CPU */
@@ -1204,7 +1204,7 @@ void intel_engine_flush_submission(struct intel_engine_cs *engine)
if (tasklet_trylock(t)) {
/* Must wait for any GPU reset in progress. */
if (__tasklet_is_enabled(t))
- t->func(t->data);
+ t->callback(t);
tasklet_unlock(t);
}
local_bh_enable();
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 26c7d0a50585..20aa0ec09507 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -3194,9 +3194,9 @@ static bool preempt_timeout(const struct intel_engine_cs *const engine)
* Check the unread Context Status Buffers and manage the submission of new
* contexts to the ELSP accordingly.
*/
-static void execlists_submission_tasklet(unsigned long data)
+static void execlists_submission_tasklet(struct tasklet_struct *t)
{
- struct intel_engine_cs * const engine = (struct intel_engine_cs *)data;
+ struct intel_engine_cs * const engine = from_tasklet(engine, t, execlists.tasklet);
bool timeout = preempt_timeout(engine);

process_csb(engine);
@@ -4401,9 +4401,9 @@ static void execlists_reset_rewind(struct intel_engine_cs *engine, bool stalled)
spin_unlock_irqrestore(&engine->active.lock, flags);
}

-static void nop_submission_tasklet(unsigned long data)
+static void nop_submission_tasklet(struct tasklet_struct *t)
{
- struct intel_engine_cs * const engine = (struct intel_engine_cs *)data;
+ struct intel_engine_cs * const engine = from_tasklet(engine, t, execlists.tasklet);

/* The driver is wedged; don't process any more events. */
WRITE_ONCE(engine->execlists.queue_priority_hint, INT_MIN);
@@ -4487,7 +4487,7 @@ static void execlists_reset_cancel(struct intel_engine_cs *engine)
execlists->queue = RB_ROOT_CACHED;

GEM_BUG_ON(__tasklet_is_enabled(&execlists->tasklet));
- execlists->tasklet.func = nop_submission_tasklet;
+ execlists->tasklet.callback = nop_submission_tasklet;

spin_unlock_irqrestore(&engine->active.lock, flags);
}
@@ -4503,7 +4503,7 @@ static void execlists_reset_finish(struct intel_engine_cs *engine)
*/
GEM_BUG_ON(!reset_in_progress(execlists));
if (!RB_EMPTY_ROOT(&execlists->queue.rb_root))
- execlists->tasklet.func(execlists->tasklet.data);
+ execlists->tasklet.callback(&execlists->tasklet);

if (__tasklet_enable(&execlists->tasklet))
/* And kick in case we missed a new request submission. */
@@ -5093,7 +5093,7 @@ void intel_execlists_set_default_submission(struct intel_engine_cs *engine)
{
engine->submit_request = execlists_submit_request;
engine->schedule = i915_schedule;
- engine->execlists.tasklet.func = execlists_submission_tasklet;
+ engine->execlists.tasklet.callback = execlists_submission_tasklet;

engine->reset.prepare = execlists_reset_prepare;
engine->reset.rewind = execlists_reset_rewind;
@@ -5220,8 +5220,7 @@ int intel_execlists_submission_setup(struct intel_engine_cs *engine)
struct intel_uncore *uncore = engine->uncore;
u32 base = engine->mmio_base;

- tasklet_init(&engine->execlists.tasklet,
- execlists_submission_tasklet, (unsigned long)engine);
+ tasklet_setup(&engine->execlists.tasklet, execlists_submission_tasklet);
timer_setup(&engine->execlists.timer, execlists_timeslice, 0);
timer_setup(&engine->execlists.preempt, execlists_preempt, 0);

@@ -5670,9 +5669,9 @@ static intel_engine_mask_t virtual_submission_mask(struct virtual_engine *ve)
return mask;
}

-static void virtual_submission_tasklet(unsigned long data)
+static void virtual_submission_tasklet(struct tasklet_struct *t)
{
- struct virtual_engine * const ve = (struct virtual_engine *)data;
+ struct virtual_engine * const ve = from_tasklet(ve, t, base.execlists.tasklet);
const int prio = READ_ONCE(ve->base.execlists.queue_priority_hint);
intel_engine_mask_t mask;
unsigned int n;
@@ -5883,9 +5882,7 @@ intel_execlists_create_virtual(struct intel_engine_cs **siblings,

INIT_LIST_HEAD(virtual_queue(ve));
ve->base.execlists.queue_priority_hint = INT_MIN;
- tasklet_init(&ve->base.execlists.tasklet,
- virtual_submission_tasklet,
- (unsigned long)ve);
+ tasklet_setup(&ve->base.execlists.tasklet, virtual_submission_tasklet);

intel_context_init(&ve->context, &ve->base);

@@ -5913,7 +5910,7 @@ intel_execlists_create_virtual(struct intel_engine_cs **siblings,
* layering if we handle cloning of the requests and
* submitting a copy into each backend.
*/
- if (sibling->execlists.tasklet.func !=
+ if (sibling->execlists.tasklet.callback !=
execlists_submission_tasklet) {
err = -ENODEV;
goto err_put;
diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c
index 95d41c01d0e0..8594ff72456e 100644
--- a/drivers/gpu/drm/i915/gt/selftest_lrc.c
+++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c
@@ -631,7 +631,7 @@ static int live_hold_reset(void *arg)
}
tasklet_disable(&engine->execlists.tasklet);

- engine->execlists.tasklet.func(engine->execlists.tasklet.data);
+ engine->execlists.tasklet.callback(&engine->execlists.tasklet);
GEM_BUG_ON(execlists_active(&engine->execlists) != rq);

i915_request_get(rq);
@@ -4577,7 +4577,7 @@ static int reset_virtual_engine(struct intel_gt *gt,
}
tasklet_disable(&engine->execlists.tasklet);

- engine->execlists.tasklet.func(engine->execlists.tasklet.data);
+ engine->execlists.tasklet.callback(&engine->execlists.tasklet);
GEM_BUG_ON(execlists_active(&engine->execlists) != rq);

/* Fake a preemption event; failed of course */
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index fdfeb4b9b0f5..a52ce82f23e2 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -344,9 +344,9 @@ static void __guc_dequeue(struct intel_engine_cs *engine)
execlists->active = execlists->inflight;
}

-static void guc_submission_tasklet(unsigned long data)
+static void guc_submission_tasklet(struct tasklet_struct *t)
{
- struct intel_engine_cs * const engine = (struct intel_engine_cs *)data;
+ struct intel_engine_cs * const engine = from_tasklet(engine, t, execlists.tasklet);
struct intel_engine_execlists * const execlists = &engine->execlists;
struct i915_request **port, *rq;
unsigned long flags;
@@ -591,7 +591,7 @@ static void guc_set_default_submission(struct intel_engine_cs *engine)
*/
intel_execlists_set_default_submission(engine);

- engine->execlists.tasklet.func = guc_submission_tasklet;
+ engine->execlists.tasklet.callback = guc_submission_tasklet;

/* do not use execlists park/unpark */
engine->park = engine->unpark = NULL;
--
2.30.0
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