Commit 905da43c authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915/selftests: Move uncore fw selftests to operate on intel_gt



Forcewake is the speciality of the GT, so it is natural to run the
intel_uncore_forcewake tests over the GT. So pass intel_gt as the
parameter to our selftests.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: default avatarDaniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191022131016.9065-1-chris@chris-wilson.co.uk
parent c31c9e82
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+28 −26
Original line number Diff line number Diff line
@@ -140,19 +140,19 @@ static int live_forcewake_ops(void *arg)
		}
	};
	const struct reg *r;
	struct drm_i915_private *i915 = arg;
	struct intel_gt *gt = arg;
	struct intel_uncore_forcewake_domain *domain;
	struct intel_uncore *uncore = &i915->uncore;
	struct intel_uncore *uncore = gt->uncore;
	struct intel_engine_cs *engine;
	enum intel_engine_id id;
	intel_wakeref_t wakeref;
	unsigned int tmp;
	int err = 0;

	GEM_BUG_ON(i915->gt.awake);
	GEM_BUG_ON(gt->awake);

	/* vlv/chv with their pcu behave differently wrt reads */
	if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915)) {
	if (IS_VALLEYVIEW(gt->i915) || IS_CHERRYVIEW(gt->i915)) {
		pr_debug("PCU fakes forcewake badly; skipping\n");
		return 0;
	}
@@ -170,15 +170,15 @@ static int live_forcewake_ops(void *arg)

	/* We have to pick carefully to get the exact behaviour we need */
	for (r = registers; r->name; r++)
		if (r->platforms & INTEL_INFO(i915)->gen_mask)
		if (r->platforms & INTEL_INFO(gt->i915)->gen_mask)
			break;
	if (!r->name) {
		pr_debug("Forcewaked register not known for %s; skipping\n",
			 intel_platform_name(INTEL_INFO(i915)->platform));
			 intel_platform_name(INTEL_INFO(gt->i915)->platform));
		return 0;
	}

	wakeref = intel_runtime_pm_get(&i915->runtime_pm);
	wakeref = intel_runtime_pm_get(uncore->rpm);

	for_each_fw_domain(domain, uncore, tmp) {
		smp_store_mb(domain->active, false);
@@ -188,7 +188,7 @@ static int live_forcewake_ops(void *arg)
		intel_uncore_fw_release_timer(&domain->timer);
	}

	for_each_engine(engine, i915, id) {
	for_each_engine(engine, gt, id) {
		i915_reg_t mmio = _MMIO(engine->mmio_base + r->offset);
		u32 __iomem *reg = uncore->regs + engine->mmio_base + r->offset;
		enum forcewake_domains fw_domains;
@@ -249,22 +249,22 @@ static int live_forcewake_ops(void *arg)
	}

out_rpm:
	intel_runtime_pm_put(&i915->runtime_pm, wakeref);
	intel_runtime_pm_put(uncore->rpm, wakeref);
	return err;
}

static int live_forcewake_domains(void *arg)
{
#define FW_RANGE 0x40000
	struct drm_i915_private *dev_priv = arg;
	struct intel_uncore *uncore = &dev_priv->uncore;
	struct intel_gt *gt = arg;
	struct intel_uncore *uncore = gt->uncore;
	unsigned long *valid;
	u32 offset;
	int err;

	if (!HAS_FPGA_DBG_UNCLAIMED(dev_priv) &&
	    !IS_VALLEYVIEW(dev_priv) &&
	    !IS_CHERRYVIEW(dev_priv))
	if (!HAS_FPGA_DBG_UNCLAIMED(gt->i915) &&
	    !IS_VALLEYVIEW(gt->i915) &&
	    !IS_CHERRYVIEW(gt->i915))
		return 0;

	/*
@@ -283,7 +283,7 @@ static int live_forcewake_domains(void *arg)
	for (offset = 0; offset < FW_RANGE; offset += 4) {
		i915_reg_t reg = { offset };

		(void)I915_READ_FW(reg);
		intel_uncore_posting_read_fw(uncore, reg);
		if (!check_for_unclaimed_mmio(uncore))
			set_bit(offset, valid);
	}
@@ -300,7 +300,7 @@ static int live_forcewake_domains(void *arg)

		check_for_unclaimed_mmio(uncore);

		(void)I915_READ(reg);
		intel_uncore_posting_read_fw(uncore, reg);
		if (check_for_unclaimed_mmio(uncore)) {
			pr_err("Unclaimed mmio read to register 0x%04x\n",
			       offset);
@@ -312,21 +312,23 @@ static int live_forcewake_domains(void *arg)
	return err;
}

static int live_fw_table(void *arg)
{
	struct intel_gt *gt = arg;

	/* Confirm the table we load is still valid */
	return intel_fw_table_check(gt->uncore->fw_domains_table,
				    gt->uncore->fw_domains_table_entries,
				    INTEL_GEN(gt->i915) >= 9);
}

int intel_uncore_live_selftests(struct drm_i915_private *i915)
{
	static const struct i915_subtest tests[] = {
		SUBTEST(live_fw_table),
		SUBTEST(live_forcewake_ops),
		SUBTEST(live_forcewake_domains),
	};

	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;

	return i915_subtests(tests, i915);
	return intel_gt_live_subtests(tests, &i915->gt);
}