From: Chris Wilson <[email protected]> Allow compute contexts to submit the maximal amount of work without blocking userspace.
The original size for user LRC ring's (SZ_16K) was chosen to minimise memory consumption, without being so small as to frequently stall in the middle of workloads. With the main consumers being GL / media pipelines of 2 or 3 batches per frame, we want to support ~10 requests in flight to allow for the application to control throttling without stalling within a frame. Signed-off-by: Chris Wilson <[email protected]> --- drivers/gpu/drm/i915/gem/i915_gem_context.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c index 5402a7bbcb1d..0edb7be6fa5e 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c @@ -965,6 +965,8 @@ static int intel_context_set_gem(struct intel_context *ce, GEM_BUG_ON(intel_context_is_pinned(ce)); ce->ring_size = SZ_16K; + if (ce->engine->class == COMPUTE_CLASS) + ce->ring_size = SZ_512K; i915_vm_put(ce->vm); ce->vm = i915_gem_context_get_eb_vm(ctx); -- 2.25.1
