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lib: add igt_get_stop_rings and igt_set_stop_rings

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Multiple tests are introducing hangs by fidding with i915_ring_stop
debugfs entry.

Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
This commit is contained in:
Mika Kuoppala
2014-03-25 12:21:44 +02:00
parent 1c7ca57e53
commit bfa6fa9a4b
3 changed files with 157 additions and 0 deletions
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lib/igt_debugfs.h
+33
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@@ -143,4 +143,37 @@ void igt_enable_prefault(void);
int igt_open_forcewake_handle(void);
/**
* stop_ring_flags:
*
* @STOP_RING_NONE: Can be used to clear the pending stop (warning: hang might
* be declared already). Returned by igt_get_stop_rings() if there is
* no currently stopped rings.
* @STOP_RING_RENDER: Render ring
* @STOP_RING_BSD: Video encoding/decoding ring
* @STOP_RING_BLT: Blitter ring
* @STOP_RING_VEBOX: Video enchanment ring
* @STOP_RING_ALL: All rings
* @STOP_RING_ALLOW_ERRORS: Driver will not omit expected DRM_ERRORS
* @STOP_RING_ALLOW_BAN: Driver will use context ban policy
* @STOP_RING_DEFAULT: STOP_RING_ALL | STOP_RING_ALLOW_ERRORS
* Enumeration of all supported flags for igt_set_stop_rings().
*
*/
enum stop_ring_flags {
STOP_RING_NONE = 0x00,
STOP_RING_RENDER = (1 << 0),
STOP_RING_BSD = (1 << 1),
STOP_RING_BLT = (1 << 2),
STOP_RING_VEBOX = (1 << 3),
STOP_RING_ALL = 0xff,
STOP_RING_ALLOW_ERRORS = (1 << 30),
STOP_RING_ALLOW_BAN = (1 << 31),
STOP_RING_DEFAULTS = STOP_RING_ALL | STOP_RING_ALLOW_ERRORS,
};
enum stop_ring_flags igt_to_stop_ring_flag(int ring);
void igt_set_stop_rings(enum stop_ring_flags flags);
enum stop_ring_flags igt_get_stop_rings(void);
#endif /* __IGT_DEBUGFS_H__ */