From: Chris Wilson <chris.p.wil...@intel.com>
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 <chris.p.wil...@intel.com>
---
drivers/gpu/drm/i915/gem/i915_gem_context.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c
b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index 5402a7bbcb1d..9a9ff84c90d7 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);
--
2.25.1
