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From: Jason Ekstrand <jason@jlekstrand.net>
To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>,
	Jason Ekstrand <jason@jlekstrand.net>
Subject: [PATCH 18/31] drm/i915/gem: Optionally set SSEU in intel_context_set_gem
Date: Wed,  9 Jun 2021 12:44:05 -0500	[thread overview]
Message-ID: <20210609174418.249585-19-jason@jlekstrand.net> (raw)
In-Reply-To: <20210609174418.249585-1-jason@jlekstrand.net>

For now this is a no-op because everyone passes in a null SSEU but it
lets us get some of the error handling and selftest refactoring plumbed
through.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/gem/i915_gem_context.c   | 41 +++++++++++++++----
 .../gpu/drm/i915/gem/selftests/mock_context.c |  6 ++-
 2 files changed, 36 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index 93579fa0324d1..e62482477c771 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
@@ -307,9 +307,12 @@ context_get_vm_rcu(struct i915_gem_context *ctx)
 	} while (1);
 }
 
-static void intel_context_set_gem(struct intel_context *ce,
-				  struct i915_gem_context *ctx)
+static int intel_context_set_gem(struct intel_context *ce,
+				 struct i915_gem_context *ctx,
+				 struct intel_sseu sseu)
 {
+	int ret = 0;
+
 	GEM_BUG_ON(rcu_access_pointer(ce->gem_context));
 	RCU_INIT_POINTER(ce->gem_context, ctx);
 
@@ -336,6 +339,12 @@ static void intel_context_set_gem(struct intel_context *ce,
 
 		intel_context_set_watchdog_us(ce, (u64)timeout_ms * 1000);
 	}
+
+	/* A valid SSEU has no zero fields */
+	if (sseu.slice_mask && !WARN_ON(ce->engine->class != RENDER_CLASS))
+		ret = intel_context_reconfigure_sseu(ce, sseu);
+
+	return ret;
 }
 
 static void __free_engines(struct i915_gem_engines *e, unsigned int count)
@@ -403,7 +412,8 @@ static struct i915_gem_engines *alloc_engines(unsigned int count)
 	return e;
 }
 
-static struct i915_gem_engines *default_engines(struct i915_gem_context *ctx)
+static struct i915_gem_engines *default_engines(struct i915_gem_context *ctx,
+						struct intel_sseu rcs_sseu)
 {
 	const struct intel_gt *gt = &ctx->i915->gt;
 	struct intel_engine_cs *engine;
@@ -416,6 +426,8 @@ static struct i915_gem_engines *default_engines(struct i915_gem_context *ctx)
 
 	for_each_engine(engine, gt, id) {
 		struct intel_context *ce;
+		struct intel_sseu sseu = {};
+		int ret;
 
 		if (engine->legacy_idx == INVALID_ENGINE)
 			continue;
@@ -429,10 +441,18 @@ static struct i915_gem_engines *default_engines(struct i915_gem_context *ctx)
 			goto free_engines;
 		}
 
-		intel_context_set_gem(ce, ctx);
-
 		e->engines[engine->legacy_idx] = ce;
 		e->num_engines = max(e->num_engines, engine->legacy_idx + 1);
+
+		if (engine->class == RENDER_CLASS)
+			sseu = rcs_sseu;
+
+		ret = intel_context_set_gem(ce, ctx, sseu);
+		if (ret) {
+			err = ERR_PTR(ret);
+			goto free_engines;
+		}
+
 	}
 
 	return e;
@@ -746,6 +766,7 @@ __create_context(struct drm_i915_private *i915,
 {
 	struct i915_gem_context *ctx;
 	struct i915_gem_engines *e;
+	struct intel_sseu null_sseu = {};
 	int err;
 	int i;
 
@@ -763,7 +784,7 @@ __create_context(struct drm_i915_private *i915,
 	INIT_LIST_HEAD(&ctx->stale.engines);
 
 	mutex_init(&ctx->engines_mutex);
-	e = default_engines(ctx);
+	e = default_engines(ctx, null_sseu);
 	if (IS_ERR(e)) {
 		err = PTR_ERR(e);
 		goto err_free;
@@ -1549,6 +1570,7 @@ set_engines__load_balance(struct i915_user_extension __user *base, void *data)
 	struct intel_engine_cs *stack[16];
 	struct intel_engine_cs **siblings;
 	struct intel_context *ce;
+	struct intel_sseu null_sseu = {};
 	u16 num_siblings, idx;
 	unsigned int n;
 	int err;
@@ -1621,7 +1643,7 @@ set_engines__load_balance(struct i915_user_extension __user *base, void *data)
 		goto out_siblings;
 	}
 
-	intel_context_set_gem(ce, set->ctx);
+	intel_context_set_gem(ce, set->ctx, null_sseu);
 
 	if (cmpxchg(&set->engines->engines[idx], NULL, ce)) {
 		intel_context_put(ce);
@@ -1729,6 +1751,7 @@ set_engines(struct i915_gem_context *ctx,
 	struct drm_i915_private *i915 = ctx->i915;
 	struct i915_context_param_engines __user *user =
 		u64_to_user_ptr(args->value);
+	struct intel_sseu null_sseu = {};
 	struct set_engines set = { .ctx = ctx };
 	unsigned int num_engines, n;
 	u64 extensions;
@@ -1738,7 +1761,7 @@ set_engines(struct i915_gem_context *ctx,
 		if (!i915_gem_context_user_engines(ctx))
 			return 0;
 
-		set.engines = default_engines(ctx);
+		set.engines = default_engines(ctx, null_sseu);
 		if (IS_ERR(set.engines))
 			return PTR_ERR(set.engines);
 
@@ -1795,7 +1818,7 @@ set_engines(struct i915_gem_context *ctx,
 			return PTR_ERR(ce);
 		}
 
-		intel_context_set_gem(ce, ctx);
+		intel_context_set_gem(ce, ctx, null_sseu);
 
 		set.engines->engines[n] = ce;
 	}
diff --git a/drivers/gpu/drm/i915/gem/selftests/mock_context.c b/drivers/gpu/drm/i915/gem/selftests/mock_context.c
index e0f512ef7f3c6..cbeefd060e97b 100644
--- a/drivers/gpu/drm/i915/gem/selftests/mock_context.c
+++ b/drivers/gpu/drm/i915/gem/selftests/mock_context.c
@@ -14,6 +14,7 @@ mock_context(struct drm_i915_private *i915,
 {
 	struct i915_gem_context *ctx;
 	struct i915_gem_engines *e;
+	struct intel_sseu null_sseu = {};
 
 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
@@ -31,7 +32,7 @@ mock_context(struct drm_i915_private *i915,
 	i915_gem_context_set_persistence(ctx);
 
 	mutex_init(&ctx->engines_mutex);
-	e = default_engines(ctx);
+	e = default_engines(ctx, null_sseu);
 	if (IS_ERR(e))
 		goto err_free;
 	RCU_INIT_POINTER(ctx->engines, e);
@@ -112,6 +113,7 @@ live_context_for_engine(struct intel_engine_cs *engine, struct file *file)
 {
 	struct i915_gem_engines *engines;
 	struct i915_gem_context *ctx;
+	struct intel_sseu null_sseu = {};
 	struct intel_context *ce;
 
 	engines = alloc_engines(1);
@@ -130,7 +132,7 @@ live_context_for_engine(struct intel_engine_cs *engine, struct file *file)
 		return ERR_CAST(ce);
 	}
 
-	intel_context_set_gem(ce, ctx);
+	intel_context_set_gem(ce, ctx, null_sseu);
 	engines->engines[0] = ce;
 	engines->num_engines = 1;
 
-- 
2.31.1


  parent reply	other threads:[~2021-06-09 17:45 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-09 17:43 [PATCH 00/31] drm/i915/gem: ioctl clean-ups (v6) Jason Ekstrand
2021-06-09 17:43 ` [PATCH 01/31] drm/i915: Drop I915_CONTEXT_PARAM_RINGSIZE Jason Ekstrand
2021-06-09 17:43 ` [PATCH 02/31] drm/i915: Stop storing the ring size in the ring pointer (v2) Jason Ekstrand
2021-06-09 17:43 ` [PATCH 03/31] drm/i915: Drop I915_CONTEXT_PARAM_NO_ZEROMAP Jason Ekstrand
2021-06-09 17:43 ` [PATCH 04/31] drm/i915/gem: Set the watchdog timeout directly in intel_context_set_gem (v2) Jason Ekstrand
2021-06-09 17:43 ` [PATCH 05/31] drm/i915/gem: Return void from context_apply_all Jason Ekstrand
2021-06-09 17:43 ` [PATCH 06/31] drm/i915: Drop the CONTEXT_CLONE API (v2) Jason Ekstrand
2021-06-16 15:34   ` [Intel-gfx] " kernel test robot
2021-06-09 17:43 ` [PATCH 07/31] drm/i915: Implement SINGLE_TIMELINE with a syncobj (v4) Jason Ekstrand
2021-06-09 17:43 ` [PATCH 08/31] drm/i915: Drop getparam support for I915_CONTEXT_PARAM_ENGINES Jason Ekstrand
2021-06-09 17:43 ` [PATCH 09/31] drm/i915/gem: Disallow bonding of virtual engines (v3) Jason Ekstrand
2021-06-09 17:43 ` [PATCH 10/31] drm/i915/gem: Remove engine auto-magic with FENCE_SUBMIT (v2) Jason Ekstrand
2021-06-09 17:43 ` [PATCH 11/31] drm/i915/request: Remove the hook from await_execution Jason Ekstrand
2021-06-09 17:43 ` [PATCH 12/31] drm/i915/gem: Disallow creating contexts with too many engines Jason Ekstrand
2021-06-09 17:44 ` [PATCH 13/31] drm/i915: Stop manually RCU banging in reset_stats_ioctl (v2) Jason Ekstrand
2021-06-09 17:44 ` [PATCH 14/31] drm/i915/gem: Add a separate validate_priority helper Jason Ekstrand
2021-06-09 17:44 ` [PATCH 15/31] drm/i915: Add gem/i915_gem_context.h to the docs Jason Ekstrand
2021-06-09 17:44 ` [PATCH 16/31] drm/i915/gem: Add an intermediate proto_context struct (v5) Jason Ekstrand
2021-06-09 17:44 ` [PATCH 17/31] drm/i915/gem: Rework error handling in default_engines Jason Ekstrand
2021-06-09 17:44 ` Jason Ekstrand [this message]
2021-06-09 17:44 ` [PATCH 19/31] drm/i915: Add an i915_gem_vm_lookup helper Jason Ekstrand
2021-06-09 17:44 ` [PATCH 20/31] drm/i915/gem: Make an alignment check more sensible Jason Ekstrand
2021-06-09 17:44 ` [PATCH 21/31] drm/i915/gem: Use the proto-context to handle create parameters (v4) Jason Ekstrand
2021-06-09 17:44 ` [PATCH 22/31] drm/i915/gem: Return an error ptr from context_lookup Jason Ekstrand
2021-06-09 17:44 ` [PATCH 23/31] drm/i915/gt: Drop i915_address_space::file (v2) Jason Ekstrand
2021-06-09 17:44 ` [PATCH 24/31] drm/i915/gem: Delay context creation (v3) Jason Ekstrand
2021-06-09 17:44 ` [PATCH 25/31] drm/i915/gem: Don't allow changing the VM on running contexts (v4) Jason Ekstrand
2021-06-09 17:44 ` [PATCH 26/31] drm/i915/gem: Don't allow changing the engine set on running contexts (v3) Jason Ekstrand
2021-06-09 17:44 ` [PATCH 27/31] drm/i915/selftests: Take a VM in kernel_context() Jason Ekstrand
2021-06-09 17:44 ` [PATCH 28/31] i915/gem/selftests: Assign the VM at context creation in igt_shared_ctx_exec Jason Ekstrand
2021-06-09 17:44 ` [PATCH 29/31] drm/i915/gem: Roll all of context creation together Jason Ekstrand
2021-06-16 20:11   ` kernel test robot
2021-06-09 17:44 ` [PATCH 30/31] drm/i915: Finalize contexts in GEM_CONTEXT_CREATE on version 13+ Jason Ekstrand
2021-06-09 17:44 ` [PATCH 31/31] HACK: Always finalize contexts Jason Ekstrand
  -- strict thread matches above, loose matches on Subject: below --
2021-06-09  4:35 [PATCH 00/31] drm/i915/gem: ioctl clean-ups (v6) Jason Ekstrand
2021-06-09  4:36 ` [PATCH 18/31] drm/i915/gem: Optionally set SSEU in intel_context_set_gem Jason Ekstrand

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