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During engine setup, we may find that some engines are fused off causing a misalignment between internal names and the instances seen by users, e.g. (I915_ENGINE_CLASS_VIDEO_DECODE, 1) may be vcs2 in hardware. Normally this is invisible to the user, but a few debug interfaces (and our own internal tracing) use the original HW name not the name the user would expect as formed from their class:instance tuple. Replace our internal name with the uabi name for consistency with, for example, error states. v2: Keep the pretty printing of class name in the selftest Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111311 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190807110431.8130-1-chris@chris-wilson.co.uk
62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
/*
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* SPDX-License-Identifier: GPL-2.0
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*
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* Copyright © 2018 Intel Corporation
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*/
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#include "../i915_selftest.h"
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static int intel_mmio_bases_check(void *arg)
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{
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int i, j;
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for (i = 0; i < ARRAY_SIZE(intel_engines); i++) {
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const struct engine_info *info = &intel_engines[i];
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u8 prev = U8_MAX;
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for (j = 0; j < MAX_MMIO_BASES; j++) {
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u8 gen = info->mmio_bases[j].gen;
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u32 base = info->mmio_bases[j].base;
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if (gen >= prev) {
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pr_err("%s(%s, class:%d, instance:%d): mmio base for gen %x is before the one for gen %x\n",
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__func__,
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intel_engine_class_repr(info->class),
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info->class, info->instance,
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prev, gen);
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return -EINVAL;
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}
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if (gen == 0)
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break;
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if (!base) {
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pr_err("%s(%s, class:%d, instance:%d): invalid mmio base (%x) for gen %x at entry %u\n",
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__func__,
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intel_engine_class_repr(info->class),
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info->class, info->instance,
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base, gen, j);
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return -EINVAL;
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}
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prev = gen;
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}
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pr_debug("%s: min gen supported for %s%d is %d\n",
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__func__,
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intel_engine_class_repr(info->class),
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info->instance,
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prev);
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}
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return 0;
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}
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int intel_engine_cs_mock_selftests(void)
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{
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static const struct i915_subtest tests[] = {
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SUBTEST(intel_mmio_bases_check),
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};
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return i915_subtests(tests, NULL);
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}
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