[PATCH 12/22] drm/i915: enumerate and init each supported region

[Matthew Auld <matthew.auld@intel.com>]

From: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>

Nothing to enumerate yet...

Signed-off-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h               |  3 +
 drivers/gpu/drm/i915/i915_gem_gtt.c           | 70 +++++++++++++++++--
 .../gpu/drm/i915/selftests/mock_gem_device.c  |  6 ++
 3 files changed, 72 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 05a6491690f7..cd1414f2bcb5 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2394,6 +2394,9 @@ int __must_check i915_gem_evict_for_node(struct i915_address_space *vm,
 					 unsigned int flags);
 int i915_gem_evict_vm(struct i915_address_space *vm);
 
+void i915_gem_cleanup_memory_regions(struct drm_i915_private *i915);
+int i915_gem_init_memory_regions(struct drm_i915_private *i915);
+
 /* i915_gem_internal.c */
 struct drm_i915_gem_object *
 i915_gem_object_create_internal(struct drm_i915_private *dev_priv,
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index e62e9d1a1307..a2963677861d 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2744,6 +2744,66 @@ int i915_init_ggtt(struct drm_i915_private *i915)
 	return 0;
 }
 
+void i915_gem_cleanup_memory_regions(struct drm_i915_private *i915)
+{
+	int i;
+
+	i915_gem_cleanup_stolen(i915);
+
+	for (i = 0; i < ARRAY_SIZE(i915->mm.regions); i++) {
+		struct intel_memory_region *region = i915->mm.regions[i];
+
+		if (region)
+			intel_memory_region_destroy(region);
+	}
+}
+
+int i915_gem_init_memory_regions(struct drm_i915_private *i915)
+{
+	int err, i;
+
+	/*
+	 * Initialise stolen early so that we may reserve preallocated
+	 * objects for the BIOS to KMS transition.
+	 */
+	/* XXX: stolen will become a region at some point */
+	err = i915_gem_init_stolen(i915);
+	if (err)
+		return err;
+
+	for (i = 0; i < ARRAY_SIZE(i915->mm.regions); i++) {
+		struct intel_memory_region *mem = NULL;
+		u32 type;
+
+		if (!HAS_REGION(i915, BIT(i)))
+			continue;
+
+		type = MEMORY_TYPE_FROM_REGION(intel_region_map[i]);
+		switch (type) {
+		default:
+			break;
+		}
+
+		if (IS_ERR(mem)) {
+			err = PTR_ERR(mem);
+			DRM_ERROR("Failed to setup region(%d) type=%d\n", err, type);
+			goto out_cleanup;
+		}
+
+		mem->id = intel_region_map[i];
+		mem->type = type;
+		mem->instance = MEMORY_INSTANCE_FROM_REGION(intel_region_map[i]);
+
+		i915->mm.regions[i] = mem;
+	}
+
+	return 0;
+
+out_cleanup:
+	i915_gem_cleanup_memory_regions(i915);
+	return err;
+}
+
 static void ggtt_cleanup_hw(struct i915_ggtt *ggtt)
 {
 	struct drm_i915_private *i915 = ggtt->vm.i915;
@@ -2785,6 +2845,8 @@ void i915_ggtt_driver_release(struct drm_i915_private *i915)
 {
 	struct pagevec *pvec;
 
+	i915_gem_cleanup_memory_regions(i915);
+
 	fini_aliasing_ppgtt(&i915->ggtt);
 
 	ggtt_cleanup_hw(&i915->ggtt);
@@ -2794,8 +2856,6 @@ void i915_ggtt_driver_release(struct drm_i915_private *i915)
 		set_pages_array_wb(pvec->pages, pvec->nr);
 		__pagevec_release(pvec);
 	}
-
-	i915_gem_cleanup_stolen(i915);
 }
 
 static unsigned int gen6_get_total_gtt_size(u16 snb_gmch_ctl)
@@ -3251,11 +3311,7 @@ int i915_ggtt_init_hw(struct drm_i915_private *dev_priv)
 	if (ret)
 		return ret;
 
-	/*
-	 * Initialise stolen early so that we may reserve preallocated
-	 * objects for the BIOS to KMS transition.
-	 */
-	ret = i915_gem_init_stolen(dev_priv);
+	ret = i915_gem_init_memory_regions(dev_priv);
 	if (ret)
 		goto out_gtt_cleanup;
 
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 32e32b1cd566..f210b5043112 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -82,6 +82,8 @@ static void mock_device_release(struct drm_device *dev)
 
 	i915_gemfs_fini(i915);
 
+	i915_gem_cleanup_memory_regions(i915);
+
 	drm_mode_config_cleanup(&i915->drm);
 
 	drm_dev_fini(&i915->drm);
@@ -219,6 +221,10 @@ struct drm_i915_private *mock_gem_device(void)
 
 	WARN_ON(i915_gemfs_init(i915));
 
+	err = i915_gem_init_memory_regions(i915);
+	if (err)
+		goto err_context;
+
 	return i915;
 
 err_context:
-- 
2.20.1

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