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drm/i915: Record space required for breadcrumb emission
authorChris Wilson <chris@chris-wilson.co.uk>
Fri, 28 Oct 2016 12:58:51 +0000 (13:58 +0100)
committerChris Wilson <chris@chris-wilson.co.uk>
Fri, 28 Oct 2016 19:53:53 +0000 (20:53 +0100)
commit98f29e8d908f2b9e3d966f6f7d63cd69b4aaf0a2
tree2ac622bebd0e7d0f4df5b68c274839150b003b02
parent9b81d556b11fe58827dcd87bc5deaf8da2f716ae
drm/i915: Record space required for breadcrumb emission

In the next patch, we will use deferred breadcrumb emission. That requires
reserving sufficient space in the ringbuffer to emit the breadcrumb, which
first requires us to know how large the breadcrumb is.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161028125858.23563-28-chris@chris-wilson.co.uk
drivers/gpu/drm/i915/i915_gem_request.c
drivers/gpu/drm/i915/intel_lrc.c
drivers/gpu/drm/i915/intel_ringbuffer.c
drivers/gpu/drm/i915/intel_ringbuffer.h