From 724df646c80374f0d6e76c160a248547a042082b Mon Sep 17 00:00:00 2001
From: Michal Wajdeczko <michal.wajdeczko@intel.com>
Date: Wed, 31 Jul 2019 22:33:20 +0000
Subject: drm/i915/guc: Use dedicated flag to track submission mode
Git-commit: 724df646c80374f0d6e76c160a248547a042082b
Patch-mainline: v5.4-rc1
References: bsc#1152489
Instead of relying on enable_guc modparam to represent actual
GuC submission mode, use dedicated flag and look at modparam
only to check if submission was explicitly disabled by the user.
v2: rebased, simplified condition (Chris)
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190731223321.36436-4-michal.wajdeczko@intel.com
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/i915/gt/uc/intel_guc.c | 1 +
drivers/gpu/drm/i915/gt/uc/intel_guc.h | 7 +++++++
.../gpu/drm/i915/gt/uc/intel_guc_submission.c | 16 ++++++++++++++++
.../gpu/drm/i915/gt/uc/intel_guc_submission.h | 1 +
drivers/gpu/drm/i915/gt/uc/intel_uc.h | 3 +--
5 files changed, 26 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
index f8fc34816e2c..da14f8067497 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
@@ -82,6 +82,7 @@ void intel_guc_init_early(struct intel_guc *guc)
intel_guc_fw_init_early(guc);
intel_guc_ct_init_early(&guc->ct);
intel_guc_log_init_early(&guc->log);
+ intel_guc_submission_init_early(guc);
mutex_init(&guc->send_mutex);
spin_lock_init(&guc->irq_lock);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.h b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
index 5901506672cd..6edb29b9ceaa 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.h
@@ -61,6 +61,8 @@ struct intel_guc {
void (*disable)(struct intel_guc *guc);
} interrupts;
+ bool submission_supported;
+
struct i915_vma *ads_vma;
struct __guc_ads_blob *ads_blob;
@@ -190,6 +192,11 @@ static inline int intel_guc_sanitize(struct intel_guc *guc)
return 0;
}
+static inline bool intel_guc_is_submission_supported(struct intel_guc *guc)
+{
+ return guc->submission_supported;
+}
+
static inline void intel_guc_enable_msg(struct intel_guc *guc, u32 mask)
{
spin_lock_irq(&guc->irq_lock);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index b4238fe16a03..b4b508f19a1c 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -1163,6 +1163,22 @@ void intel_guc_submission_disable(struct intel_guc *guc)
guc_clients_disable(guc);
}
+static bool __guc_submission_support(struct intel_guc *guc)
+{
+ /* XXX: GuC submission is unavailable for now */
+ return false;
+
+ if (!intel_guc_is_supported(guc))
+ return false;
+
+ return i915_modparams.enable_guc & ENABLE_GUC_SUBMISSION;
+}
+
+void intel_guc_submission_init_early(struct intel_guc *guc)
+{
+ guc->submission_supported = __guc_submission_support(guc);
+}
+
#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
#include "selftest_guc.c"
#endif
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h
index 87a38cb6faf3..c4ad2702ec8d 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.h
@@ -77,6 +77,7 @@ struct intel_guc_client {
I915_SELFTEST_DECLARE(bool use_nop_wqi);
};
+void intel_guc_submission_init_early(struct intel_guc *guc);
int intel_guc_submission_init(struct intel_guc *guc);
int intel_guc_submission_enable(struct intel_guc *guc);
void intel_guc_submission_disable(struct intel_guc *guc);
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc.h b/drivers/gpu/drm/i915/gt/uc/intel_uc.h
index a81c016ff078..0cca839422e2 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_uc.h
+++ b/drivers/gpu/drm/i915/gt/uc/intel_uc.h
@@ -56,8 +56,7 @@ static inline bool intel_uc_supports_guc(struct intel_uc *uc)
static inline bool intel_uc_supports_guc_submission(struct intel_uc *uc)
{
- GEM_BUG_ON(i915_modparams.enable_guc < 0);
- return i915_modparams.enable_guc & ENABLE_GUC_SUBMISSION;
+ return intel_guc_is_submission_supported(&uc->guc);
}
static inline bool intel_uc_supports_huc(struct intel_uc *uc)
--
2.28.0