drivers/gpu/drm/i915/i915_selftest.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/i915/i915_selftest.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/i915/i915_selftest.h
Extension
.h
Size
4710 bytes
Lines
146
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct i915_selftest {
	unsigned long timeout_jiffies;
	unsigned int timeout_ms;
	unsigned int random_seed;
	unsigned int userspace_pid;
	char *filter;
	int mock;
	int live;
	int perf;
};

#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
#include <linux/fault-inject.h>

extern struct i915_selftest i915_selftest;

int i915_mock_selftests(void);
int i915_live_selftests(struct pci_dev *pdev);
int i915_perf_selftests(struct pci_dev *pdev);

/* We extract the function declarations from i915_mock_selftests.h and
 * i915_live_selftests.h Add your unit test declarations there!
 *
 * Mock unit tests are run very early upon module load, before the driver
 * is probed. All hardware interactions, as well as other subsystems, must
 * be "mocked".
 *
 * Live unit tests are run after the driver is loaded - all hardware
 * interactions are real.
 */
#define selftest(name, func) int func(void);
#include "selftests/i915_mock_selftests.h"
#undef selftest
#define selftest(name, func) int func(struct drm_i915_private *i915);
#include "selftests/i915_live_selftests.h"
#include "selftests/i915_perf_selftests.h"
#undef selftest

struct i915_subtest {
	int (*func)(void *data);
	const char *name;
};

int __i915_nop_setup(void *data);
int __i915_nop_teardown(int err, void *data);

int __i915_live_setup(void *data);
int __i915_live_teardown(int err, void *data);

int __intel_gt_live_setup(void *data);
int __intel_gt_live_teardown(int err, void *data);

int __i915_subtests(const char *caller,
		    int (*setup)(void *data),
		    int (*teardown)(int err, void *data),
		    const struct i915_subtest *st,
		    unsigned int count,
		    void *data);
#define i915_subtests(T, data) \
	__i915_subtests(__func__, \
			__i915_nop_setup, __i915_nop_teardown, \
			T, ARRAY_SIZE(T), data)
#define i915_live_subtests(T, data) ({ \
	typecheck(struct drm_i915_private *, data); \
	(data)->gt[0]->uc.guc.submission_state.sched_disable_delay_ms = 0; \
	__i915_subtests(__func__, \
			__i915_live_setup, __i915_live_teardown, \
			T, ARRAY_SIZE(T), data); \
})
#define intel_gt_live_subtests(T, data) ({ \
	typecheck(struct intel_gt *, data); \
	(data)->uc.guc.submission_state.sched_disable_delay_ms = 0; \
	__i915_subtests(__func__, \
			__intel_gt_live_setup, __intel_gt_live_teardown, \
			T, ARRAY_SIZE(T), data); \
})

#define SUBTEST(x) { x, #x }

#define I915_SELFTEST_DECLARE(x) x
#define I915_SELFTEST_ONLY(x) unlikely(x)
#define I915_SELFTEST_EXPORT

#else /* !IS_ENABLED(CONFIG_DRM_I915_SELFTEST) */

static inline int i915_mock_selftests(void) { return 0; }
static inline int i915_live_selftests(struct pci_dev *pdev) { return 0; }
static inline int i915_perf_selftests(struct pci_dev *pdev) { return 0; }

#define I915_SELFTEST_DECLARE(x)

Annotation

Implementation Notes