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From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
To: Intel-gfx@lists.freedesktop.org
Cc: Eero T Tamminen <eero.t.tamminen@intel.com>,
	dri-devel@lists.freedesktop.org,
	Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Subject: [PATCH] drm/i915/pmu: Check actual RC6 status
Date: Wed, 31 Mar 2021 11:18:50 +0100	[thread overview]
Message-ID: <20210331101850.2582027-1-tvrtko.ursulin@linux.intel.com> (raw)

From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

RC6 support cannot be simply established by looking at the static device
HAS_RC6() flag. There are cases which disable RC6 at driver load time so
use the status of those check when deciding whether to enumerate the rc6
counter.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reported-by: Eero T Tamminen <eero.t.tamminen@intel.com>
---
 drivers/gpu/drm/i915/i915_pmu.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_pmu.c b/drivers/gpu/drm/i915/i915_pmu.c
index 41651ac255fa..a75cd1db320b 100644
--- a/drivers/gpu/drm/i915/i915_pmu.c
+++ b/drivers/gpu/drm/i915/i915_pmu.c
@@ -476,6 +476,8 @@ engine_event_status(struct intel_engine_cs *engine,
 static int
 config_status(struct drm_i915_private *i915, u64 config)
 {
+	struct intel_gt *gt = &i915->gt;
+
 	switch (config) {
 	case I915_PMU_ACTUAL_FREQUENCY:
 		if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915))
@@ -489,7 +491,7 @@ config_status(struct drm_i915_private *i915, u64 config)
 	case I915_PMU_INTERRUPTS:
 		break;
 	case I915_PMU_RC6_RESIDENCY:
-		if (!HAS_RC6(i915))
+		if (!gt->rc6.supported)
 			return -ENODEV;
 		break;
 	case I915_PMU_SOFTWARE_GT_AWAKE_TIME:
-- 
2.27.0

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             reply	other threads:[~2021-03-31 10:19 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-31 10:18 Tvrtko Ursulin [this message]
2021-04-01  9:19 ` [Intel-gfx] [PATCH] drm/i915/pmu: Check actual RC6 status Rodrigo Vivi
2021-04-01  9:38   ` Tvrtko Ursulin
2021-04-01  9:54     ` Rodrigo Vivi
2021-04-01 10:24       ` Tamminen, Eero T
2021-04-01 11:38         ` Tvrtko Ursulin

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