[PATCH 25/28] drm/i915/selftests: check for missing aperture

[Matthew Auld]

We may be missing support for the mappable aperture on some platforms.

Signed-off-by: Matthew Auld <matthew.auld at intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
---
 .../drm/i915/gem/selftests/i915_gem_coherency.c    |  5 ++++-
 drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c |  3 +++
 drivers/gpu/drm/i915/gt/selftest_hangcheck.c       | 14 ++++++++++----
 drivers/gpu/drm/i915/selftests/i915_gem.c          |  3 +++
 drivers/gpu/drm/i915/selftests/i915_gem_gtt.c      |  3 +++
 5 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c
index a1a4b53cdc4a..42db49ff9b8e 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c
@@ -244,7 +244,10 @@ static bool always_valid(struct drm_i915_private *i915)
 
 static bool needs_fence_registers(struct drm_i915_private *i915)
 {
-	return !intel_gt_is_wedged(&i915->gt);
+	if (intel_gt_is_wedged(&i915->gt))
+		return false;
+
+	return i915->ggtt.num_fences;
 }
 
 static bool needs_mi_store_dword(struct drm_i915_private *i915)
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
index 50aa7e95124d..fa83745abcc0 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
@@ -184,6 +184,9 @@ static int igt_partial_tiling(void *arg)
 	int tiling;
 	int err;
 
+	if (!HAS_MAPPABLE_APERTURE(i915))
+		return 0;
+
 	/* We want to check the page mapping and fencing of a large object
 	 * mmapped through the GTT. The object we create is larger than can
 	 * possibly be mmaped as a whole, and so we must use partial GGTT vma.
diff --git a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
index 4484b4447db1..233810da5387 100644
--- a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
+++ b/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
@@ -1179,8 +1179,12 @@ static int __igt_reset_evict_vma(struct intel_gt *gt,
 	struct i915_request *rq;
 	struct evict_vma arg;
 	struct hang h;
+	unsigned int pin_flags;
 	int err;
 
+	if (!gt->ggtt->num_fences && flags & EXEC_OBJECT_NEEDS_FENCE)
+		return 0;
+
 	if (!engine || !intel_engine_can_store_dword(engine))
 		return 0;
 
@@ -1217,10 +1221,12 @@ static int __igt_reset_evict_vma(struct intel_gt *gt,
 		goto out_obj;
 	}
 
-	err = i915_vma_pin(arg.vma, 0, 0,
-			   i915_vma_is_ggtt(arg.vma) ?
-			   PIN_GLOBAL | PIN_MAPPABLE :
-			   PIN_USER);
+	pin_flags = i915_vma_is_ggtt(arg.vma) ? PIN_GLOBAL : PIN_USER;
+
+	if (flags & EXEC_OBJECT_NEEDS_FENCE)
+		pin_flags |= PIN_MAPPABLE;
+
+	err = i915_vma_pin(arg.vma, 0, 0, pin_flags);
 	if (err) {
 		i915_request_add(rq);
 		goto out_obj;
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem.c b/drivers/gpu/drm/i915/selftests/i915_gem.c
index bb6dd54a6ff3..0e62d5e07fcc 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem.c
@@ -42,6 +42,9 @@ static void trash_stolen(struct drm_i915_private *i915)
 	unsigned long page;
 	u32 prng = 0x12345678;
 
+	if (!HAS_MAPPABLE_APERTURE(i915))
+		return;
+
 	for (page = 0; page < size; page += PAGE_SIZE) {
 		const dma_addr_t dma = i915->dsm.start + page;
 		u32 __iomem *s;
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index 81850e3a7d2d..2b72276d4e97 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -1147,6 +1147,9 @@ static int igt_ggtt_page(void *arg)
 	unsigned int *order, n;
 	int err;
 
+	if (!HAS_MAPPABLE_APERTURE(i915))
+		return 0;
+
 	mutex_lock(&i915->drm.struct_mutex);
 
 	obj = i915_gem_object_create_internal(i915, PAGE_SIZE);
-- 
2.20.1