From 65706203d159db3353839fe97561397e8c188aa1 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Micha=C5=82=20Winiarski?= Date: Mon, 6 Jul 2020 16:41:06 +0200 Subject: [PATCH] drm/i915: Print caller when tainting for CI MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit We can add taint from multiple places, printing the caller allows us to have a better overview of what exactly caused us to do the tainting. v2: Tweak format and print the device (Chris) v3: Move things around (Chris) Suggested-by: Michal Wajdeczko Signed-off-by: Michał Winiarski Cc: Chris Wilson Cc: Michal Wajdeczko Cc: Petri Latvala Reviewed-by: Chris Wilson Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20200706144107.204821-2-michal@hardline.pl --- drivers/gpu/drm/i915/gt/intel_reset.c | 6 +++--- drivers/gpu/drm/i915/gt/selftest_rc6.c | 2 +- drivers/gpu/drm/i915/i915_gem.h | 2 +- drivers/gpu/drm/i915/i915_utils.c | 7 +++++++ drivers/gpu/drm/i915/i915_utils.h | 3 ++- drivers/gpu/drm/i915/intel_uncore.c | 4 ++-- 6 files changed, 16 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c b/drivers/gpu/drm/i915/gt/intel_reset.c index 6f94b647..121bf39 100644 --- a/drivers/gpu/drm/i915/gt/intel_reset.c +++ b/drivers/gpu/drm/i915/gt/intel_reset.c @@ -930,7 +930,7 @@ static bool __intel_gt_unset_wedged(struct intel_gt *gt) * Warn CI about the unrecoverable wedged condition. * Time for a reboot. */ - add_taint_for_CI(TAINT_WARN); + add_taint_for_CI(gt->i915, TAINT_WARN); return false; } @@ -1097,7 +1097,7 @@ taint: * rather than continue on into oblivion. For everyone else, * the system should still plod along, but they have been warned! */ - add_taint_for_CI(TAINT_WARN); + add_taint_for_CI(gt->i915, TAINT_WARN); error: __intel_gt_set_wedged(gt); goto finish; @@ -1362,7 +1362,7 @@ void intel_gt_set_wedged_on_init(struct intel_gt *gt) set_bit(I915_WEDGED_ON_INIT, >->reset.flags); /* Wedged on init is non-recoverable */ - add_taint_for_CI(TAINT_WARN); + add_taint_for_CI(gt->i915, TAINT_WARN); } void intel_gt_set_wedged_on_fini(struct intel_gt *gt) diff --git a/drivers/gpu/drm/i915/gt/selftest_rc6.c b/drivers/gpu/drm/i915/gt/selftest_rc6.c index 3c84348..64ef5ee 100644 --- a/drivers/gpu/drm/i915/gt/selftest_rc6.c +++ b/drivers/gpu/drm/i915/gt/selftest_rc6.c @@ -233,7 +233,7 @@ int live_rc6_ctx_wa(void *arg) i915_reset_engine_count(error, engine)) { pr_err("%s: GPU reset required\n", engine->name); - add_taint_for_CI(TAINT_WARN); + add_taint_for_CI(gt->i915, TAINT_WARN); err = -EIO; goto out; } diff --git a/drivers/gpu/drm/i915/i915_gem.h b/drivers/gpu/drm/i915/i915_gem.h index 1753c84..f333e88a 100644 --- a/drivers/gpu/drm/i915/i915_gem.h +++ b/drivers/gpu/drm/i915/i915_gem.h @@ -72,7 +72,7 @@ struct drm_i915_private; trace_printk(__VA_ARGS__); \ } while (0) #define GEM_TRACE_DUMP() \ - do { ftrace_dump(DUMP_ALL); add_taint_for_CI(TAINT_WARN); } while (0) + do { ftrace_dump(DUMP_ALL); __add_taint_for_CI(TAINT_WARN); } while (0) #define GEM_TRACE_DUMP_ON(expr) \ do { if (expr) GEM_TRACE_DUMP(); } while (0) #else diff --git a/drivers/gpu/drm/i915/i915_utils.c b/drivers/gpu/drm/i915/i915_utils.c index f42a9e9..01a3d3c 100644 --- a/drivers/gpu/drm/i915/i915_utils.c +++ b/drivers/gpu/drm/i915/i915_utils.c @@ -49,6 +49,13 @@ __i915_printk(struct drm_i915_private *dev_priv, const char *level, } } +void add_taint_for_CI(struct drm_i915_private *i915, unsigned int taint) +{ + __i915_printk(i915, KERN_NOTICE, "CI tainted:%#x by %pS\n", + taint, (void *)_RET_IP_); + __add_taint_for_CI(taint); +} + #if IS_ENABLED(CONFIG_DRM_I915_DEBUG) static unsigned int i915_probe_fail_count; diff --git a/drivers/gpu/drm/i915/i915_utils.h b/drivers/gpu/drm/i915/i915_utils.h index 03a73d2..b1c5955 100644 --- a/drivers/gpu/drm/i915/i915_utils.h +++ b/drivers/gpu/drm/i915/i915_utils.h @@ -436,7 +436,8 @@ static inline const char *enableddisabled(bool v) return v ? "enabled" : "disabled"; } -static inline void add_taint_for_CI(unsigned int taint) +void add_taint_for_CI(struct drm_i915_private *i915, unsigned int taint); +static inline void __add_taint_for_CI(unsigned int taint) { /* * The system is "ok", just about surviving for the user, but diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 592364a..8e2c073 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -142,7 +142,7 @@ fw_domain_wait_ack_clear(const struct intel_uncore_forcewake_domain *d) if (wait_ack_clear(d, FORCEWAKE_KERNEL)) { DRM_ERROR("%s: timed out waiting for forcewake ack to clear.\n", intel_uncore_forcewake_domain_to_str(d->id)); - add_taint_for_CI(TAINT_WARN); /* CI now unreliable */ + add_taint_for_CI(d->uncore->i915, TAINT_WARN); /* CI now unreliable */ } } @@ -219,7 +219,7 @@ fw_domain_wait_ack_set(const struct intel_uncore_forcewake_domain *d) if (wait_ack_set(d, FORCEWAKE_KERNEL)) { DRM_ERROR("%s: timed out waiting for forcewake ack request.\n", intel_uncore_forcewake_domain_to_str(d->id)); - add_taint_for_CI(TAINT_WARN); /* CI now unreliable */ + add_taint_for_CI(d->uncore->i915, TAINT_WARN); /* CI now unreliable */ } } -- 2.7.4