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e3d291301f
The older arches did not convert MI_STORE_DATA_IMM to using the GTT, but left them writing to a physical address. The notes suggest that the primary reason would be so that the writes were cache coherent, as the CPU cache uses physical tagging. As such we did not implement the legacy variant of MI_STORE_DATA_IMM and so left all the relocations synchronous -- but with a small function to convert from the vma address into the physical address, we can implement asynchronous relocs on these older arches, fixing up a few tests that require them. In order to be able to test the legacy paths, refactor the gpu relocations so that we can hook them up to a selftest. v2: Use an array of offsets not enum labels for the selftest v3: Refactor the common igt_hexdump() Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/757 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200504140629.28240-1-chris@chris-wilson.co.uk
138 lines
4.3 KiB
C
138 lines
4.3 KiB
C
/*
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* Copyright © 2016 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef __I915_SELFTEST_H__
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#define __I915_SELFTEST_H__
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#include <linux/types.h>
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struct pci_dev;
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struct drm_i915_private;
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struct i915_selftest {
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unsigned long timeout_jiffies;
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unsigned int timeout_ms;
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unsigned int random_seed;
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char *filter;
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int mock;
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int live;
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int perf;
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};
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#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
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#include <linux/fault-inject.h>
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extern struct i915_selftest i915_selftest;
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int i915_mock_selftests(void);
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int i915_live_selftests(struct pci_dev *pdev);
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int i915_perf_selftests(struct pci_dev *pdev);
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/* We extract the function declarations from i915_mock_selftests.h and
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* i915_live_selftests.h Add your unit test declarations there!
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*
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* Mock unit tests are run very early upon module load, before the driver
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* is probed. All hardware interactions, as well as other subsystems, must
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* be "mocked".
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*
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* Live unit tests are run after the driver is loaded - all hardware
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* interactions are real.
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*/
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#define selftest(name, func) int func(void);
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#include "selftests/i915_mock_selftests.h"
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#undef selftest
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#define selftest(name, func) int func(struct drm_i915_private *i915);
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#include "selftests/i915_live_selftests.h"
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#include "selftests/i915_perf_selftests.h"
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#undef selftest
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struct i915_subtest {
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int (*func)(void *data);
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const char *name;
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};
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int __i915_nop_setup(void *data);
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int __i915_nop_teardown(int err, void *data);
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int __i915_live_setup(void *data);
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int __i915_live_teardown(int err, void *data);
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int __intel_gt_live_setup(void *data);
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int __intel_gt_live_teardown(int err, void *data);
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int __i915_subtests(const char *caller,
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int (*setup)(void *data),
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int (*teardown)(int err, void *data),
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const struct i915_subtest *st,
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unsigned int count,
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void *data);
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#define i915_subtests(T, data) \
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__i915_subtests(__func__, \
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__i915_nop_setup, __i915_nop_teardown, \
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T, ARRAY_SIZE(T), data)
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#define i915_live_subtests(T, data) ({ \
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typecheck(struct drm_i915_private *, data); \
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__i915_subtests(__func__, \
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__i915_live_setup, __i915_live_teardown, \
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T, ARRAY_SIZE(T), data); \
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})
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#define intel_gt_live_subtests(T, data) ({ \
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typecheck(struct intel_gt *, data); \
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__i915_subtests(__func__, \
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__intel_gt_live_setup, __intel_gt_live_teardown, \
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T, ARRAY_SIZE(T), data); \
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})
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#define SUBTEST(x) { x, #x }
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#define I915_SELFTEST_DECLARE(x) x
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#define I915_SELFTEST_ONLY(x) unlikely(x)
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#else /* !IS_ENABLED(CONFIG_DRM_I915_SELFTEST) */
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static inline int i915_mock_selftests(void) { return 0; }
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static inline int i915_live_selftests(struct pci_dev *pdev) { return 0; }
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static inline int i915_perf_selftests(struct pci_dev *pdev) { return 0; }
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#define I915_SELFTEST_DECLARE(x)
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#define I915_SELFTEST_ONLY(x) 0
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#endif
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/* Using the i915_selftest_ prefix becomes a little unwieldy with the helpers.
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* Instead we use the igt_ shorthand, in reference to the intel-gpu-tools
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* suite of uabi test cases (which includes a test runner for our selftests).
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*/
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#define IGT_TIMEOUT(name__) \
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unsigned long name__ = jiffies + i915_selftest.timeout_jiffies
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__printf(2, 3)
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bool __igt_timeout(unsigned long timeout, const char *fmt, ...);
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#define igt_timeout(t, fmt, ...) \
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__igt_timeout((t), KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
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void igt_hexdump(const void *buf, size_t len);
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#endif /* !__I915_SELFTEST_H__ */
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