Merge tag 'drm-intel-next-2019-06-19' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

Features:
- HDR support (Uma, Ville)
- Add I2C symlink under HDMI connector similar to DP (Oleg)
- Add ICL multi-segmented gamma support (Shashank, Uma)
- Update register whitelist support for new hardware (Robert, John)
- GuC firmware update with updated ABI interface (Michal, Oscar)
- Add support for new DMC header versions (Lucas)
- In-kernel blitter client for selftest use (Matthew)
- Add Mule Creec Canyon (MCC) PCH support to go with EHL (Matt)
- EHL platform feature updates (Matt)
- Use Command Transport Buffers with GuC on all gens (Daniele)
- New i915.force_probe module parameter to replace i915.alpha_support (Jani)

Refactoring:
- Better runtime PM code abstraction/encapsulation (Daniele)
- VBT parsing cleanup and improvements (Jani)
- Move display code to its own subdirectory (Jani)
- Header cleanup (Jani, Daniele)
- Prep work for subsclice mask expansion (Stuart)
- Use uncore mmio register accessors more, remove unused macro wrappers (Tvrtko)
- Remove unused atomic property get/set stubs (Maarten)
- GTT cleanups and improvements (Mika)
- Pass intel_ types instead of drm_ types in plenty of display code (Ville)
- Engine reset, hangcheck, fault code cleanups and improvements (Tvrtko)
- Consider AML variants simply as either KBL or CFL ULX (Ville)
- State checker cleanups and improvements (Ville)
- GEM code reorganization to more files under gem subdirectory (Chris)
- Reducing dependency on a coarse struct_mutex (Chris)

Fixes:
- Fix use of uninitialized/incorrect error pointers (Colin, Dan)
- Fix DSI fastboot on some VLV/CHV platforms (Hans)
- Fix DSI error path (Hans)
- Add ICL port A combo PHY HW state check (Imre)
- Fix ICL AUX-B HW not done issue (Imre)
- Fix perf whitelist on gen10+ (Lionel)
- Fix PSR exit by forcing manual exit on older gens (José)
- Match voltage ranges instead of exact values (Lucas)
- Fix SDVO HDMI audio, with cleanups (Ville)
- Fix plane state dumps (Ville)
- Fix driver cleanup code to support driver hot unbind (Janusz)
- Add checks for ICL memory bandwidth requirements (Ville)
- Fix toggling between no C8 planes vs. at least one C8 plane (Ville)
- Improved checks on PLL usage conditions, refactoring (Ville)
- Avoid clobbering M/N values in fastset fuzzy checks (Ville)
- Take a runtime pm wakeref for atomic commits (Chris)
- Do not allow runtime pm autosuspend to remove userspace GGTT mmaps too quickly (Chris)
- Avoid refcount_inc on known zero count to avoid debug flagging (Chris)

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87v9x1lpdh.fsf@intel.com

1 files changed, 75 insertions, 13 deletions

diff --git a/drivers/gpu/drm/i915/gt/intel_context.c b/drivers/gpu/drm/i915/gt/intel_context.c
index 5b31e1e05ddd..2c454f227c2e 100644
--- a/drivers/gpu/drm/i915/gt/intel_context.c
+++ b/drivers/gpu/drm/i915/gt/intel_context.c
@@ -4,8 +4,10 @@
  * Copyright © 2019 Intel Corporation
  */
 
+#include "gem/i915_gem_context.h"
+#include "gem/i915_gem_pm.h"
+
 #include "i915_drv.h"
-#include "i915_gem_context.h"
 #include "i915_globals.h"
 
 #include "intel_context.h"
@@ -52,14 +54,13 @@ int __intel_context_do_pin(struct intel_context *ce)
 		intel_wakeref_t wakeref;
 
 		err = 0;
-		with_intel_runtime_pm(ce->engine->i915, wakeref)
+		with_intel_runtime_pm(&ce->engine->i915->runtime_pm, wakeref)
 			err = ce->ops->pin(ce);
 		if (err)
 			goto err;
 
 		i915_gem_context_get(ce->gem_context); /* for ctx->ppgtt */
 
-		intel_context_get(ce);
 		smp_mb__before_atomic(); /* flush pin before it is visible */
 	}
 
@@ -87,20 +88,45 @@ void intel_context_unpin(struct intel_context *ce)
 		ce->ops->unpin(ce);
 
 		i915_gem_context_put(ce->gem_context);
-		intel_context_put(ce);
+		intel_context_active_release(ce);
 	}
 
 	mutex_unlock(&ce->pin_mutex);
 	intel_context_put(ce);
 }
 
-static void intel_context_retire(struct i915_active_request *active,
-				 struct i915_request *rq)
+static int __context_pin_state(struct i915_vma *vma, unsigned long flags)
 {
-	struct intel_context *ce =
-		container_of(active, typeof(*ce), active_tracker);
+	int err;
 
-	intel_context_unpin(ce);
+	err = i915_vma_pin(vma, 0, 0, flags | PIN_GLOBAL);
+	if (err)
+		return err;
+
+	/*
+	 * And mark it as a globally pinned object to let the shrinker know
+	 * it cannot reclaim the object until we release it.
+	 */
+	vma->obj->pin_global++;
+	vma->obj->mm.dirty = true;
+
+	return 0;
+}
+
+static void __context_unpin_state(struct i915_vma *vma)
+{
+	vma->obj->pin_global--;
+	__i915_vma_unpin(vma);
+}
+
+static void intel_context_retire(struct i915_active *active)
+{
+	struct intel_context *ce = container_of(active, typeof(*ce), active);
+
+	if (ce->state)
+		__context_unpin_state(ce->state);
+
+	intel_context_put(ce);
 }
 
 void
@@ -116,15 +142,52 @@ intel_context_init(struct intel_context *ce,
 	ce->engine = engine;
 	ce->ops = engine->cops;
 	ce->sseu = engine->sseu;
-	ce->saturated = 0;
 
 	INIT_LIST_HEAD(&ce->signal_link);
 	INIT_LIST_HEAD(&ce->signals);
 
 	mutex_init(&ce->pin_mutex);
 
-	i915_active_request_init(&ce->active_tracker,
-				 NULL, intel_context_retire);
+	i915_active_init(ctx->i915, &ce->active, intel_context_retire);
+}
+
+int intel_context_active_acquire(struct intel_context *ce, unsigned long flags)
+{
+	int err;
+
+	if (!i915_active_acquire(&ce->active))
+		return 0;
+
+	intel_context_get(ce);
+
+	if (!ce->state)
+		return 0;
+
+	err = __context_pin_state(ce->state, flags);
+	if (err) {
+		i915_active_cancel(&ce->active);
+		intel_context_put(ce);
+		return err;
+	}
+
+	/* Preallocate tracking nodes */
+	if (!i915_gem_context_is_kernel(ce->gem_context)) {
+		err = i915_active_acquire_preallocate_barrier(&ce->active,
+							      ce->engine);
+		if (err) {
+			i915_active_release(&ce->active);
+			return err;
+		}
+	}
+
+	return 0;
+}
+
+void intel_context_active_release(struct intel_context *ce)
+{
+	/* Nodes preallocated in intel_context_active() */
+	i915_active_acquire_barrier(&ce->active);
+	i915_active_release(&ce->active);
 }
 
 static void i915_global_context_shrink(void)
@@ -159,7 +222,6 @@ void intel_context_enter_engine(struct intel_context *ce)
 
 void intel_context_exit_engine(struct intel_context *ce)
 {
-	ce->saturated = 0;
 	intel_engine_pm_put(ce->engine);
 }