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path: root/drivers/gpu/drm/i915/gt/selftest_rps.c
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Diffstat (limited to 'drivers/gpu/drm/i915/gt/selftest_rps.c')
-rw-r--r--drivers/gpu/drm/i915/gt/selftest_rps.c69
1 files changed, 28 insertions, 41 deletions
diff --git a/drivers/gpu/drm/i915/gt/selftest_rps.c b/drivers/gpu/drm/i915/gt/selftest_rps.c
index 6275d69aa9cc..5049c3dd08a6 100644
--- a/drivers/gpu/drm/i915/gt/selftest_rps.c
+++ b/drivers/gpu/drm/i915/gt/selftest_rps.c
@@ -20,24 +20,20 @@
/* Try to isolate the impact of cstates from determing frequency response */
#define CPU_LATENCY 0 /* -1 to disable pm_qos, 0 to disable cstates */
-static unsigned long engine_heartbeat_disable(struct intel_engine_cs *engine)
+static void engine_heartbeat_disable(struct intel_engine_cs *engine)
{
- unsigned long old;
-
- old = fetch_and_zero(&engine->props.heartbeat_interval_ms);
+ engine->props.heartbeat_interval_ms = 0;
intel_engine_pm_get(engine);
intel_engine_park_heartbeat(engine);
-
- return old;
}
-static void engine_heartbeat_enable(struct intel_engine_cs *engine,
- unsigned long saved)
+static void engine_heartbeat_enable(struct intel_engine_cs *engine)
{
intel_engine_pm_put(engine);
- engine->props.heartbeat_interval_ms = saved;
+ engine->props.heartbeat_interval_ms =
+ engine->defaults.heartbeat_interval_ms;
}
static void dummy_rps_work(struct work_struct *wrk)
@@ -246,7 +242,6 @@ int live_rps_clock_interval(void *arg)
intel_gt_check_clock_frequency(gt);
for_each_engine(engine, gt, id) {
- unsigned long saved_heartbeat;
struct i915_request *rq;
u32 cycles;
u64 dt;
@@ -254,13 +249,13 @@ int live_rps_clock_interval(void *arg)
if (!intel_engine_can_store_dword(engine))
continue;
- saved_heartbeat = engine_heartbeat_disable(engine);
+ engine_heartbeat_disable(engine);
rq = igt_spinner_create_request(&spin,
engine->kernel_context,
MI_NOOP);
if (IS_ERR(rq)) {
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
err = PTR_ERR(rq);
break;
}
@@ -271,7 +266,7 @@ int live_rps_clock_interval(void *arg)
pr_err("%s: RPS spinner did not start\n",
engine->name);
igt_spinner_end(&spin);
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
intel_gt_set_wedged(engine->gt);
err = -EIO;
break;
@@ -327,7 +322,7 @@ int live_rps_clock_interval(void *arg)
intel_uncore_forcewake_put(gt->uncore, FORCEWAKE_ALL);
igt_spinner_end(&spin);
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
if (err == 0) {
u64 time = intel_gt_pm_interval_to_ns(gt, cycles);
@@ -405,7 +400,6 @@ int live_rps_control(void *arg)
intel_gt_pm_get(gt);
for_each_engine(engine, gt, id) {
- unsigned long saved_heartbeat;
struct i915_request *rq;
ktime_t min_dt, max_dt;
int f, limit;
@@ -414,7 +408,7 @@ int live_rps_control(void *arg)
if (!intel_engine_can_store_dword(engine))
continue;
- saved_heartbeat = engine_heartbeat_disable(engine);
+ engine_heartbeat_disable(engine);
rq = igt_spinner_create_request(&spin,
engine->kernel_context,
@@ -430,7 +424,7 @@ int live_rps_control(void *arg)
pr_err("%s: RPS spinner did not start\n",
engine->name);
igt_spinner_end(&spin);
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
intel_gt_set_wedged(engine->gt);
err = -EIO;
break;
@@ -440,7 +434,7 @@ int live_rps_control(void *arg)
pr_err("%s: could not set minimum frequency [%x], only %x!\n",
engine->name, rps->min_freq, read_cagf(rps));
igt_spinner_end(&spin);
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
show_pstate_limits(rps);
err = -EINVAL;
break;
@@ -457,7 +451,7 @@ int live_rps_control(void *arg)
pr_err("%s: could not restore minimum frequency [%x], only %x!\n",
engine->name, rps->min_freq, read_cagf(rps));
igt_spinner_end(&spin);
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
show_pstate_limits(rps);
err = -EINVAL;
break;
@@ -472,7 +466,7 @@ int live_rps_control(void *arg)
min_dt = ktime_sub(ktime_get(), min_dt);
igt_spinner_end(&spin);
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
pr_info("%s: range:[%x:%uMHz, %x:%uMHz] limit:[%x:%uMHz], %x:%x response %lluns:%lluns\n",
engine->name,
@@ -635,7 +629,6 @@ int live_rps_frequency_cs(void *arg)
rps->work.func = dummy_rps_work;
for_each_engine(engine, gt, id) {
- unsigned long saved_heartbeat;
struct i915_request *rq;
struct i915_vma *vma;
u32 *cancel, *cntr;
@@ -644,14 +637,14 @@ int live_rps_frequency_cs(void *arg)
int freq;
} min, max;
- saved_heartbeat = engine_heartbeat_disable(engine);
+ engine_heartbeat_disable(engine);
vma = create_spin_counter(engine,
engine->kernel_context->vm, false,
&cancel, &cntr);
if (IS_ERR(vma)) {
err = PTR_ERR(vma);
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
break;
}
@@ -732,7 +725,7 @@ err_vma:
i915_vma_unpin(vma);
i915_vma_put(vma);
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
if (igt_flush_test(gt->i915))
err = -EIO;
if (err)
@@ -778,7 +771,6 @@ int live_rps_frequency_srm(void *arg)
rps->work.func = dummy_rps_work;
for_each_engine(engine, gt, id) {
- unsigned long saved_heartbeat;
struct i915_request *rq;
struct i915_vma *vma;
u32 *cancel, *cntr;
@@ -787,14 +779,14 @@ int live_rps_frequency_srm(void *arg)
int freq;
} min, max;
- saved_heartbeat = engine_heartbeat_disable(engine);
+ engine_heartbeat_disable(engine);
vma = create_spin_counter(engine,
engine->kernel_context->vm, true,
&cancel, &cntr);
if (IS_ERR(vma)) {
err = PTR_ERR(vma);
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
break;
}
@@ -874,7 +866,7 @@ err_vma:
i915_vma_unpin(vma);
i915_vma_put(vma);
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
if (igt_flush_test(gt->i915))
err = -EIO;
if (err)
@@ -1066,16 +1058,14 @@ int live_rps_interrupt(void *arg)
for_each_engine(engine, gt, id) {
/* Keep the engine busy with a spinner; expect an UP! */
if (pm_events & GEN6_PM_RP_UP_THRESHOLD) {
- unsigned long saved_heartbeat;
-
intel_gt_pm_wait_for_idle(engine->gt);
GEM_BUG_ON(intel_rps_is_active(rps));
- saved_heartbeat = engine_heartbeat_disable(engine);
+ engine_heartbeat_disable(engine);
err = __rps_up_interrupt(rps, engine, &spin);
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
if (err)
goto out;
@@ -1084,15 +1074,13 @@ int live_rps_interrupt(void *arg)
/* Keep the engine awake but idle and check for DOWN */
if (pm_events & GEN6_PM_RP_DOWN_THRESHOLD) {
- unsigned long saved_heartbeat;
-
- saved_heartbeat = engine_heartbeat_disable(engine);
+ engine_heartbeat_disable(engine);
intel_rc6_disable(&gt->rc6);
err = __rps_down_interrupt(rps, engine);
intel_rc6_enable(&gt->rc6);
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
if (err)
goto out;
}
@@ -1168,7 +1156,6 @@ int live_rps_power(void *arg)
rps->work.func = dummy_rps_work;
for_each_engine(engine, gt, id) {
- unsigned long saved_heartbeat;
struct i915_request *rq;
struct {
u64 power;
@@ -1178,13 +1165,13 @@ int live_rps_power(void *arg)
if (!intel_engine_can_store_dword(engine))
continue;
- saved_heartbeat = engine_heartbeat_disable(engine);
+ engine_heartbeat_disable(engine);
rq = igt_spinner_create_request(&spin,
engine->kernel_context,
MI_NOOP);
if (IS_ERR(rq)) {
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
err = PTR_ERR(rq);
break;
}
@@ -1195,7 +1182,7 @@ int live_rps_power(void *arg)
pr_err("%s: RPS spinner did not start\n",
engine->name);
igt_spinner_end(&spin);
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
intel_gt_set_wedged(engine->gt);
err = -EIO;
break;
@@ -1208,7 +1195,7 @@ int live_rps_power(void *arg)
min.power = measure_power_at(rps, &min.freq);
igt_spinner_end(&spin);
- engine_heartbeat_enable(engine, saved_heartbeat);
+ engine_heartbeat_enable(engine);
pr_info("%s: min:%llumW @ %uMHz, max:%llumW @ %uMHz\n",
engine->name,
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-16 13:51:34 +0300