From 4abc6e7c917b1929d8fad2c2364b270cae5ed4ca Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 27 Sep 2019 22:17:49 +0100
Subject: drm/i915/selftests: Provide a mock GPU reset routine
Git-commit: 4abc6e7c917b1929d8fad2c2364b270cae5ed4ca
Patch-mainline: v5.5-rc1
References: bsc#1152489
For those mock tests that may wish to pretend triggering a GPU reset and
processing the cleanup.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Andi Shyti <andi.shyti@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190927211749.2181-3-chris@chris-wilson.co.uk
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/i915/gt/intel_reset.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c b/drivers/gpu/drm/i915/gt/intel_reset.c
index ea5cf3a28fbe..76938fa3a1b9 100644
--- a/drivers/gpu/drm/i915/gt/intel_reset.c
+++ b/drivers/gpu/drm/i915/gt/intel_reset.c
@@ -542,6 +542,13 @@ static int gen8_reset_engines(struct intel_gt *gt,
return ret;
}
+static int mock_reset(struct intel_gt *gt,
+ intel_engine_mask_t mask,
+ unsigned int retry)
+{
+ return 0;
+}
+
typedef int (*reset_func)(struct intel_gt *,
intel_engine_mask_t engine_mask,
unsigned int retry);
@@ -550,7 +557,9 @@ static reset_func intel_get_gpu_reset(const struct intel_gt *gt)
{
struct drm_i915_private *i915 = gt->i915;
- if (INTEL_GEN(i915) >= 8)
+ if (is_mock_gt(gt))
+ return mock_reset;
+ else if (INTEL_GEN(i915) >= 8)
return gen8_reset_engines;
else if (INTEL_GEN(i915) >= 6)
return gen6_reset_engines;
--
2.28.0