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drm/i915/perf: replace idr_init() by idr_init_base()

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idr_init() uses base 0 which is an invalid identifier. The new function
idr_init_base allows IDR to set the ID lookup from base 1. This avoids
all lookups that otherwise starts from 0 since 0 is always unused.

References: commit 6ce711f275 ("idr: Make 1-based IDRs more efficient")

Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20201104150339.GA68663@localhost
This commit is contained in:
Deepak R Varma
2020-11-04 20:33:39 +05:30
committed by Chris Wilson
parent a9d71f76cc
commit 8d989f4448
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/i915_perf.c
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@@ -4367,7 +4367,7 @@ void i915_perf_init(struct drm_i915_private *i915)
RUNTIME_INFO(i915)->cs_timestamp_frequency_hz / 2;
mutex_init(&perf->metrics_lock);
idr_init(&perf->metrics_idr);
idr_init_base(&perf->metrics_idr, 1);
/* We set up some ratelimit state to potentially throttle any
* _NOTES about spurious, invalid OA reports which we don't