From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 13 Feb 2017 17:15:34 +0000 (+0000)
Subject: drm/i915: Test all fw tables during mock selftests
X-Git-Tag: MMI-PSA29.97-13-9~5363^2~37^2~265
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9852d543a85f3aaeb408259f5e462c4ce7f1dc99;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

drm/i915: Test all fw tables during mock selftests

In addition to just testing the fw table we load, during the initial
mock testing we can test that all tables are valid (so the testing is
not limited to just the platforms that load that particular table).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170213171558.20942-23-chris@chris-wilson.co.uk
---

diff --git a/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h b/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h
index 2ed94e3a71b7..c61e08de7913 100644
--- a/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h
+++ b/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h
@@ -10,6 +10,7 @@
  */
 selftest(sanitycheck, i915_mock_sanitycheck) /* keep first (igt selfcheck) */
 selftest(scatterlist, scatterlist_mock_selftests)
+selftest(uncore, intel_uncore_mock_selftests)
 selftest(breadcrumbs, intel_breadcrumbs_mock_selftests)
 selftest(requests, i915_gem_request_mock_selftests)
 selftest(objects, i915_gem_object_mock_selftests)
diff --git a/drivers/gpu/drm/i915/selftests/intel_uncore.c b/drivers/gpu/drm/i915/selftests/intel_uncore.c
index 5f7bd5c9428f..2c2a879857da 100644
--- a/drivers/gpu/drm/i915/selftests/intel_uncore.c
+++ b/drivers/gpu/drm/i915/selftests/intel_uncore.c
@@ -24,20 +24,16 @@
 
 #include "../i915_selftest.h"
 
-static int intel_fw_table_check(struct drm_i915_private *i915)
+static int intel_fw_table_check(const struct intel_forcewake_range *ranges,
+				unsigned int num_ranges,
+				bool is_watertight)
 {
-	const struct intel_forcewake_range *ranges;
-	unsigned int num_ranges, i;
+	unsigned int i;
 	s32 prev;
 
-	ranges = i915->uncore.fw_domains_table;
-	if (!ranges)
-		return 0;
-
-	num_ranges = i915->uncore.fw_domains_table_entries;
 	for (i = 0, prev = -1; i < num_ranges; i++, ranges++) {
 		/* Check that the table is watertight */
-		if (IS_GEN9(i915) && (prev + 1) != (s32)ranges->start) {
+		if (is_watertight && (prev + 1) != (s32)ranges->start) {
 			pr_err("%s: entry[%d]:(%x, %x) is not watertight to previous (%x)\n",
 			       __func__, i, ranges->start, ranges->end, prev);
 			return -EINVAL;
@@ -84,15 +80,42 @@ static int intel_shadow_table_check(void)
 	return 0;
 }
 
-int intel_uncore_live_selftests(struct drm_i915_private *i915)
+int intel_uncore_mock_selftests(void)
 {
-	int err;
+	struct {
+		const struct intel_forcewake_range *ranges;
+		unsigned int num_ranges;
+		bool is_watertight;
+	} fw[] = {
+		{ __vlv_fw_ranges, ARRAY_SIZE(__vlv_fw_ranges), false },
+		{ __chv_fw_ranges, ARRAY_SIZE(__chv_fw_ranges), false },
+		{ __gen9_fw_ranges, ARRAY_SIZE(__gen9_fw_ranges), true },
+	};
+	int err, i;
+
+	for (i = 0; i < ARRAY_SIZE(fw); i++) {
+		err = intel_fw_table_check(fw[i].ranges,
+					   fw[i].num_ranges,
+					   fw[i].is_watertight);
+		if (err)
+			return err;
+	}
 
-	err = intel_fw_table_check(i915);
+	err = intel_shadow_table_check();
 	if (err)
 		return err;
 
-	err = intel_shadow_table_check();
+	return 0;
+}
+
+int intel_uncore_live_selftests(struct drm_i915_private *i915)
+{
+	int err;
+
+	/* Confirm the table we load is still valid */
+	err = intel_fw_table_check(i915->uncore.fw_domains_table,
+				   i915->uncore.fw_domains_table_entries,
+				   INTEL_GEN(i915) >= 9);
 	if (err)
 		return err;