drm/i915/execlists: Process one CSB update at a time

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In the next patch, we will process the CSB events directly from the
submission path, rather than only after a CS interrupt. Hence, we will
no longer have the need for a loop until the has-interrupt bit is clear,
and in the meantime can remove that small optimisation.

v2: Tvrtko pointed out it was safer to unconditionally kick the tasklet
after each irq, when assuming that the tasklet is called for each irq.

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/20180628201211.13837-4-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2018-06-28 21:12:06 +01:00

parent d8857d541c

commit 8ea397fa70

2 changed files with 141 additions and 144 deletions

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7

drivers/gpu/drm/i915/i915_irq.c

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278

drivers/gpu/drm/i915/intel_lrc.c

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