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Check that the entries are in reverse gen order and that all entries with gen > 0 have an mmio base set. v2: loop forward, simplify logic, use i915_subtests (Chris) Suggested-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20180314182653.26981-2-daniele.ceraolospurio@intel.com
58 lines
1.1 KiB
C
58 lines
1.1 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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char name[INTEL_ENGINE_CS_MAX_NAME];
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u8 prev = U8_MAX;
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__sprint_engine_name(name, info);
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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: mmio base for gen %x "
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"is before the one for gen %x\n",
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__func__, name, 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: invalid mmio base (%x) "
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"for gen %x at entry %u\n",
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__func__, name, 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_info("%s: min gen supported for %s = %d\n",
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__func__, name, 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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