From 158b594a96529d895df943a4764609438a01d687 Mon Sep 17 00:00:00 2001 From: Pratik Vishwakarma Date: Wed, 3 Oct 2018 20:45:11 +0530 Subject: [PATCH] drm/amdgpu: skip IB tests for KIQ in general [Why] 1. We never submit IBs to KIQ. 2. Ring test pass without KIQ's ring also. 3. By skipping we see an improvement of around 500ms in the amdgpu's resume time. [How] skip IB tests for KIQ ring type. Signed-off-by: Shirish S Signed-off-by: Pratik Vishwakarma Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c index 47817e00f54f..b8963b725dfa 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c @@ -354,6 +354,14 @@ int amdgpu_ib_ring_tests(struct amdgpu_device *adev) if (!ring || !ring->ready) continue; + /* skip IB tests for KIQ in general for the below reasons: + * 1. We never submit IBs to the KIQ + * 2. KIQ doesn't use the EOP interrupts, + * we use some other CP interrupt. + */ + if (ring->funcs->type == AMDGPU_RING_TYPE_KIQ) + continue; + /* MM engine need more time */ if (ring->funcs->type == AMDGPU_RING_TYPE_UVD || ring->funcs->type == AMDGPU_RING_TYPE_VCE || -- 2.30.2