diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0402-drm-amdgpu-Deactivate-SW-interrupt-fallback-in-amdgp.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0402-drm-amdgpu-Deactivate-SW-interrupt-fallback-in-amdgp.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0402-drm-amdgpu-Deactivate-SW-interrupt-fallback-in-amdgp.patch b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0402-drm-amdgpu-Deactivate-SW-interrupt-fallback-in-amdgp.patch new file mode 100644 index 00000000..b33e22b0 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0402-drm-amdgpu-Deactivate-SW-interrupt-fallback-in-amdgp.patch @@ -0,0 +1,45 @@ +From ed9dc24d846dfe898fe6e4fc5e63be1837f5f2bb Mon Sep 17 00:00:00 2001 +From: Andrey Grodzovsky <andrey.grodzovsky@amd.com> +Date: Mon, 24 Sep 2018 14:10:22 +0200 +Subject: [PATCH 0402/2940] drm/amdgpu: Deactivate SW interrupt fallback in + amdgpu_fence_process v2 + +Deactivate SW interrupt fallback when all emited fences are completed. +Also switch interrupt SW fallback message from INFO to WARN. + +v2: shorten the warnign message a bit and only re-activate the timer during +processing if it was already activated before. + +Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> +Suggested-by: Christian Konig <Christian.Koenig@amd.com> +Signed-off-by: Kalyan Alle <kalyan.alle@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 5 +++-- + 1 file changed, 3 insertions(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c +index 3f04c63f8a13..d27dac4595ce 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c +@@ -229,7 +229,8 @@ void amdgpu_fence_process(struct amdgpu_ring *ring) + + } while (atomic_cmpxchg(&drv->last_seq, last_seq, seq) != last_seq); + +- if (seq != ring->fence_drv.sync_seq) ++ if (del_timer(&ring->fence_drv.fallback_timer) && ++ seq != ring->fence_drv.sync_seq) + amdgpu_fence_schedule_fallback(ring); + + if (unlikely(seq == last_seq)) +@@ -274,7 +275,7 @@ static void amdgpu_fence_fallback(struct timer_list *t) + struct amdgpu_ring *ring = from_timer(ring, t, + fence_drv.fallback_timer); + +- DRM_INFO("Fallback to SW interrupt on ring %s due to HW interrupt time out", ring->name); ++ DRM_WARN("Fence fallback timer expired on ring %s\n", ring->name); + amdgpu_fence_process(ring); + } + +-- +2.17.1 + |