diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-28 13:58:51 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-10-28 20:53:53 +0100 |
| commit | 98f29e8d908f2b9e3d966f6f7d63cd69b4aaf0a2 (patch) | |
| tree | 2ac622bebd0e7d0f4df5b68c274839150b003b02 /drivers/gpu/drm/i915/i915_gem_request.c | |
| parent | 9b81d556b11fe58827dcd87bc5deaf8da2f716ae (diff) | |
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
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_request.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_request.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c index a626b2638722..be9e23b32e4a 100644 --- a/drivers/gpu/drm/i915/i915_gem_request.c +++ b/drivers/gpu/drm/i915/i915_gem_request.c @@ -434,6 +434,7 @@ i915_gem_request_alloc(struct intel_engine_cs *engine, * away, e.g. because a GPU scheduler has deferred it. */ req->reserved_space = MIN_SPACE_FOR_ADD_REQUEST; + GEM_BUG_ON(req->reserved_space < engine->emit_breadcrumb_sz); if (i915.enable_execlists) ret = intel_logical_ring_alloc_request_extras(req); |