From: Mika Kuoppala <mika.kuoppala@linux.intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: Chris@rosetta.fi.intel.com
Subject: [PATCH 1/3] drm/i915: Shortcut readiness to reset check
Date: Fri, 12 Apr 2019 18:37:21 +0300 [thread overview]
Message-ID: <20190412153723.31931-1-mika.kuoppala@linux.intel.com> (raw)
If the engine says it is ready for reset, it is ready
so avoid further dancing and proceed.
Cc: Chris Wilson <chris@chris-wilson.co.uk
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
---
drivers/gpu/drm/i915/i915_reset.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_reset.c b/drivers/gpu/drm/i915/i915_reset.c
index 68875ba43b8d..cde1a5309336 100644
--- a/drivers/gpu/drm/i915/i915_reset.c
+++ b/drivers/gpu/drm/i915/i915_reset.c
@@ -490,8 +490,13 @@ static int gen11_reset_engines(struct drm_i915_private *i915,
static int gen8_engine_reset_prepare(struct intel_engine_cs *engine)
{
struct intel_uncore *uncore = engine->uncore;
+ u32 ctl;
int ret;
+ ctl = intel_uncore_read_fw(uncore, RING_RESET_CTL(engine->mmio_base));
+ if (ctl & RESET_CTL_READY_TO_RESET)
+ return 0;
+
intel_uncore_write_fw(uncore,
RING_RESET_CTL(engine->mmio_base),
_MASKED_BIT_ENABLE(RESET_CTL_REQUEST_RESET));
--
2.17.1
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next reply other threads:[~2019-04-12 15:37 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-12 15:37 Mika Kuoppala [this message]
2019-04-12 15:37 ` [PATCH 2/3] drm/i915: Handle catastrophic error on engine reset Mika Kuoppala
2019-04-12 15:49 ` Chris Wilson
2019-04-12 15:58 ` Mika Kuoppala
2019-04-12 15:37 ` [PATCH 3/3] drm/i915: Log catastrophic errors on gen11 Mika Kuoppala
2019-04-12 15:42 ` Chris Wilson
2019-04-12 15:47 ` Mika Kuoppala
2019-04-12 15:53 ` Chris Wilson
2019-04-12 15:51 ` [PATCH 1/3] drm/i915: Shortcut readiness to reset check Chris Wilson
2019-04-12 15:54 ` ✗ Fi.CI.CHECKPATCH: warning for series starting with [1/3] " Patchwork
2019-04-12 16:32 ` ✓ Fi.CI.BAT: success " Patchwork
2019-04-12 19:38 ` ✓ Fi.CI.IGT: " Patchwork
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