[Intel-gfx] [PATCH v3 10/13] drm/i915/guc: Allow user to control default GuC logging
Michał Winiarski
michal.winiarski at intel.com
Mon Mar 19 09:53:45 UTC 2018
While both naming and actual log enable logic in GuC interface are
confusing, we can simply expose the default log as yet another log
level.
GuC logic aside, from i915 point of view we now have the following GuC
log levels:
0 Log disabled
1 Non-verbose log
2-5 Verbose log
v2: Adjust naming after rebase.
v3: Fixed the log_level logic error introduced on rebase.
Signed-off-by: Michał Winiarski <michal.winiarski at intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble at intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko at intel.com>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble at intel.com> (v2)
---
drivers/gpu/drm/i915/intel_guc.c | 24 +++++++++++++++---------
drivers/gpu/drm/i915/intel_guc_fwif.h | 5 +++--
drivers/gpu/drm/i915/intel_guc_log.c | 18 +++++++-----------
drivers/gpu/drm/i915/intel_guc_log.h | 15 +++++++++++++++
drivers/gpu/drm/i915/intel_uc.c | 14 +++++++++-----
5 files changed, 49 insertions(+), 27 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_guc.c b/drivers/gpu/drm/i915/intel_guc.c
index d4c2524012fa..05c3484d02a3 100644
--- a/drivers/gpu/drm/i915/intel_guc.c
+++ b/drivers/gpu/drm/i915/intel_guc.c
@@ -221,17 +221,23 @@ static u32 get_core_family(struct drm_i915_private *dev_priv)
}
}
-static u32 get_log_verbosity_flags(void)
+static u32 get_log_control_flags(void)
{
- if (i915_modparams.guc_log_level > 0) {
- u32 verbosity = i915_modparams.guc_log_level - 1;
+ u32 level = i915_modparams.guc_log_level;
+ u32 flags = 0;
- GEM_BUG_ON(verbosity > GUC_LOG_VERBOSITY_MAX);
- return verbosity << GUC_LOG_VERBOSITY_SHIFT;
- }
+ GEM_BUG_ON(level < 0);
+
+ if (!GUC_LOG_LEVEL_TO_ENABLED(level))
+ flags |= GUC_LOG_DEFAULT_DISABLED;
+
+ if (!GUC_LOG_LEVEL_TO_VERBOSE(level))
+ flags |= GUC_LOG_DISABLED;
+ else
+ flags |= GUC_LOG_LEVEL_TO_VERBOSITY(level) <<
+ GUC_LOG_VERBOSITY_SHIFT;
- GEM_BUG_ON(i915_modparams.enable_guc < 0);
- return GUC_LOG_DISABLED;
+ return flags;
}
/*
@@ -266,7 +272,7 @@ void intel_guc_init_params(struct intel_guc *guc)
params[GUC_CTL_LOG_PARAMS] = guc->log.flags;
- params[GUC_CTL_DEBUG] = get_log_verbosity_flags();
+ params[GUC_CTL_DEBUG] = get_log_control_flags();
/* If GuC submission is enabled, set up additional parameters here */
if (USES_GUC_SUBMISSION(dev_priv)) {
diff --git a/drivers/gpu/drm/i915/intel_guc_fwif.h b/drivers/gpu/drm/i915/intel_guc_fwif.h
index 6a10aa6f04d3..4971685a2ea8 100644
--- a/drivers/gpu/drm/i915/intel_guc_fwif.h
+++ b/drivers/gpu/drm/i915/intel_guc_fwif.h
@@ -127,7 +127,7 @@
#define GUC_PROFILE_ENABLED (1 << 7)
#define GUC_WQ_TRACK_ENABLED (1 << 8)
#define GUC_ADS_ENABLED (1 << 9)
-#define GUC_DEBUG_RESERVED (1 << 10)
+#define GUC_LOG_DEFAULT_DISABLED (1 << 10)
#define GUC_ADS_ADDR_SHIFT 11
#define GUC_ADS_ADDR_MASK 0xfffff800
@@ -539,7 +539,8 @@ union guc_log_control {
u32 logging_enabled:1;
u32 reserved1:3;
u32 verbosity:4;
- u32 reserved2:24;
+ u32 default_logging:1;
+ u32 reserved2:23;
};
u32 value;
} __packed;
diff --git a/drivers/gpu/drm/i915/intel_guc_log.c b/drivers/gpu/drm/i915/intel_guc_log.c
index 1e671f2b2f64..068f5e7f7594 100644
--- a/drivers/gpu/drm/i915/intel_guc_log.c
+++ b/drivers/gpu/drm/i915/intel_guc_log.c
@@ -57,12 +57,14 @@ static int guc_log_flush(struct intel_guc *guc)
return intel_guc_send(guc, action, ARRAY_SIZE(action));
}
-static int guc_log_control(struct intel_guc *guc, bool enable, u32 verbosity)
+static int guc_log_control(struct intel_guc *guc, bool enable,
+ bool default_logging, u32 verbosity)
{
union guc_log_control control_val = {
{
.logging_enabled = enable,
.verbosity = verbosity,
+ .default_logging = default_logging,
},
};
u32 action[] = {
@@ -499,13 +501,6 @@ int intel_guc_log_level_get(struct intel_guc_log *log)
return i915_modparams.guc_log_level;
}
-#define GUC_LOG_LEVEL_DISABLED 0
-#define LOG_LEVEL_TO_ENABLED(x) ((x) > 0)
-#define LOG_LEVEL_TO_VERBOSITY(x) ({ \
- typeof(x) _x = (x); \
- LOG_LEVEL_TO_ENABLED(_x) ? _x - 1 : 0; \
-})
-#define VERBOSITY_TO_LOG_LEVEL(x) ((x) + 1)
int intel_guc_log_level_set(struct intel_guc_log *log, u64 val)
{
struct intel_guc *guc = log_to_guc(log);
@@ -521,7 +516,7 @@ int intel_guc_log_level_set(struct intel_guc_log *log, u64 val)
* as indication that logging should be disabled.
*/
if (val < GUC_LOG_LEVEL_DISABLED ||
- val > VERBOSITY_TO_LOG_LEVEL(GUC_LOG_VERBOSITY_MAX))
+ val > GUC_VERBOSITY_TO_LOG_LEVEL(GUC_LOG_VERBOSITY_MAX))
return -EINVAL;
mutex_lock(&dev_priv->drm.struct_mutex);
@@ -532,8 +527,9 @@ int intel_guc_log_level_set(struct intel_guc_log *log, u64 val)
}
intel_runtime_pm_get(dev_priv);
- ret = guc_log_control(guc, LOG_LEVEL_TO_ENABLED(val),
- LOG_LEVEL_TO_VERBOSITY(val));
+ ret = guc_log_control(guc, GUC_LOG_LEVEL_TO_VERBOSE(val),
+ GUC_LOG_LEVEL_TO_ENABLED(val),
+ GUC_LOG_LEVEL_TO_VERBOSITY(val));
intel_runtime_pm_put(dev_priv);
if (ret) {
DRM_DEBUG_DRIVER("guc_log_control action failed %d\n", ret);
diff --git a/drivers/gpu/drm/i915/intel_guc_log.h b/drivers/gpu/drm/i915/intel_guc_log.h
index cc86587a0543..dab27785231b 100644
--- a/drivers/gpu/drm/i915/intel_guc_log.h
+++ b/drivers/gpu/drm/i915/intel_guc_log.h
@@ -40,6 +40,21 @@ struct intel_guc;
#define GUC_LOG_SIZE ((1 + GUC_LOG_DPC_PAGES + 1 + GUC_LOG_ISR_PAGES + \
1 + GUC_LOG_CRASH_PAGES + 1) << PAGE_SHIFT)
+/*
+ * While we're using plain log level in i915, GuC controls are much more...
+ * "elaborate"? We have a couple of bits for verbosity, separate bit for actual
+ * log enabling, and separate bit for default logging - which "conveniently"
+ * ignores the enable bit.
+ */
+#define GUC_LOG_LEVEL_DISABLED 0
+#define GUC_LOG_LEVEL_TO_ENABLED(x) ((x) > 0)
+#define GUC_LOG_LEVEL_TO_VERBOSE(x) ((x) > 1)
+#define GUC_LOG_LEVEL_TO_VERBOSITY(x) ({ \
+ typeof(x) _x = (x); \
+ GUC_LOG_LEVEL_TO_VERBOSE(_x) ? _x - 2 : 0; \
+})
+#define GUC_VERBOSITY_TO_LOG_LEVEL(x) ((x) + 2)
+
struct intel_guc_log {
u32 flags;
struct i915_vma *vma;
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 9bb40cd047a0..ad1785522497 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -75,7 +75,8 @@ static int __get_default_guc_log_level(struct drm_i915_private *dev_priv)
if (HAS_GUC(dev_priv) && intel_uc_is_using_guc() &&
(IS_ENABLED(CONFIG_DRM_I915_DEBUG) ||
IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM)))
- guc_log_level = 1 + GUC_LOG_VERBOSITY_MAX;
+ guc_log_level =
+ GUC_VERBOSITY_TO_LOG_LEVEL(GUC_LOG_VERBOSITY_MAX);
/* Any platform specific fine-tuning can be done here */
@@ -142,17 +143,20 @@ static void sanitize_options_early(struct drm_i915_private *dev_priv)
i915_modparams.guc_log_level = 0;
}
- if (i915_modparams.guc_log_level > 1 + GUC_LOG_VERBOSITY_MAX) {
+ if (i915_modparams.guc_log_level >
+ GUC_VERBOSITY_TO_LOG_LEVEL(GUC_LOG_VERBOSITY_MAX)) {
DRM_WARN("Incompatible option detected: %s=%d, %s!\n",
"guc_log_level", i915_modparams.guc_log_level,
"verbosity too high");
- i915_modparams.guc_log_level = 1 + GUC_LOG_VERBOSITY_MAX;
+ i915_modparams.guc_log_level =
+ GUC_VERBOSITY_TO_LOG_LEVEL(GUC_LOG_VERBOSITY_MAX);
}
- DRM_DEBUG_DRIVER("guc_log_level=%d (enabled:%s verbosity:%d)\n",
+ DRM_DEBUG_DRIVER("guc_log_level=%d (enabled:%s, verbose:%s, verbosity:%d)\n",
i915_modparams.guc_log_level,
yesno(i915_modparams.guc_log_level),
- i915_modparams.guc_log_level - 1);
+ yesno(GUC_LOG_LEVEL_TO_VERBOSE(i915_modparams.guc_log_level)),
+ GUC_LOG_LEVEL_TO_VERBOSITY(i915_modparams.guc_log_level));
/* Make sure that sanitization was done */
GEM_BUG_ON(i915_modparams.enable_guc < 0);
--
2.14.3
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