From: Chris Wilson Date: Wed, 17 May 2023 13:57:54 +0000 (+0530) Subject: drm/i915/gem: Use large rings for compute contexts X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=5945d8b9a8e2501b0046ec34b12ef9c115bd77e6;p=linux.git drm/i915/gem: Use large rings for compute contexts 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. v2: - cover with else part Signed-off-by: Chris Wilson Signed-off-by: Tejas Upadhyay Reviewed-by: Andi Shyti Signed-off-by: Andi Shyti Link: https://patchwork.freedesktop.org/patch/msgid/20230517135754.1110291-1-tejas.upadhyay@intel.com --- diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c index 5402a7bbcb1d1..9a9ff84c90d7e 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c @@ -964,7 +964,11 @@ static int intel_context_set_gem(struct intel_context *ce, RCU_INIT_POINTER(ce->gem_context, ctx); GEM_BUG_ON(intel_context_is_pinned(ce)); - ce->ring_size = SZ_16K; + + if (ce->engine->class == COMPUTE_CLASS) + ce->ring_size = SZ_512K; + else + ce->ring_size = SZ_16K; i915_vm_put(ce->vm); ce->vm = i915_gem_context_get_eb_vm(ctx);