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authorChris Wilson <[email protected]>2023-05-17 19:27:54 +0530
committerAndi Shyti <[email protected]>2023-05-30 23:11:59 +0200
commit5945d8b9a8e2501b0046ec34b12ef9c115bd77e6 (patch)
tree81e0ec985a6533f5920ec142e9e9b6ec10597be8
parent08264f85c5c05ecc38d409c84d48cfb00ccd3bc4 (diff)
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 <[email protected]> Signed-off-by: Tejas Upadhyay <[email protected]> Reviewed-by: Andi Shyti <[email protected]> Signed-off-by: Andi Shyti <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
-rw-r--r--drivers/gpu/drm/i915/gem/i915_gem_context.c6
1 files changed, 5 insertions, 1 deletions
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);